diff options
98 files changed, 8421 insertions, 5990 deletions
diff --git a/.agents/skills/pardes-9p/SKILL.md b/.agents/skills/pardes-9p/SKILL.md index 8903a609..0643e209 100644 --- a/.agents/skills/pardes-9p/SKILL.md +++ b/.agents/skills/pardes-9p/SKILL.md @@ -13,24 +13,29 @@ relative to that root unless linked. ## Find the session through the mount -This machine keeps a FUSE mount of every posted session under `/mnt/9p`: -`/mnt/9p/pardes/<pid>/` is one session's served root. Inside a pane, +Check `$NINE_MOUNT` first. `9ns --mntgen` sets it for every process it starts +(an interactive shell on this machine runs inside one), so a set `$NINE_MOUNT` +means the posted-9P registry is mounted there, usually `/mnt/9p`, and each +running editor is a directory `$NINE_MOUNT/pardes/<pid>/`. Inside a pane, `$PARDES_9P` is that session's socket (`/run/user/1000/pardes-9p-<pid>.sock`), -so its pid is the directory to use, and `$PARDES_PANE` is the calling pane's -serial: +which names the directory, and `$PARDES_PANE` is the calling pane's serial: ```sh -m=/mnt/9p/pardes/$(basename "$PARDES_9P" .sock | sed 's/^pardes-9p-//') +[ -n "$NINE_MOUNT" ] || echo 'no 9P mount: use the Python client below' +s=${PARDES_9P##*/pardes-9p-}; m=$NINE_MOUNT/pardes/${s%.sock} cat "$m/index" cat "$m/pane/$PARDES_PANE/body" ``` +From there the editor is files: `cat`, `echo >`, `ls` and shell scripts are +the whole interface, and nothing below needs more than they do. + Entries for dead sessions stay listed and answer `Input/output error` on any access, so name the session you mean rather than globbing or taking the newest. `cat "$m/index"` is the cheapest liveness check, and `cat "$m/status"` reports the `pid`, `version` and `panes` of a session new enough to serve it. -`/mnt/9p/pardes` is the registry of posted sessions, mounted once for the +`$NINE_MOUNT/pardes` is the registry of posted sessions, mounted once for the machine. It is not the per-pane kernel mount the `Tty9p` builtin makes, which gives one pane's shell `$PARDES_MOUNT`; see [docs/v9fs.md](../../../docs/v9fs.md) for that. Either mountpoint serves the same tree. A `9ns --unix SOCKET -- cmd` @@ -52,6 +57,7 @@ $m/pane/<n>/pty/run write one line, read `exit N` + its output, or `busy` / `e exec 3<>$m/pane/$n/pty/run; echo make >&3; cat <&3 (a fresh terminal: waits for its first prompt; if none comes, interrupt the read) $m/log recent events, then EOF: new|del|rename|save <serial> <name>, msg <serial|-> <text>, + run <serial> <line>, exit <serial> <N|?>, send <from> <to> <repl-id>, dump|restore <path>, err <serial|-> <file>: <why> (exec 3<>$m/log; echo follow >&3; cat <&3 waits for new ones; tail -f does not) $m/screen the rendered screen as JSON, frozen per open @@ -60,7 +66,8 @@ $m/focus the serial of the pane with the keyboard (empty while a column/wor echo a serial into it to move the keyboard (a folded pane stays folded) $m/ctl the settings, one a line as a write takes them; write a setting or a session builtin (Newcol, Dump, Theme x; Exit QUITS the editor, Kill [word...] stops the - commands pardes started (command panes, lines it typed into shells); Exit and Restore refuse once per + commands pardes started (command panes, lines it typed into shells), a word + matching a command line's first word; Exit and Restore refuse once per unsaved pane, `<name>: Modified (Exit again to discard)`, and the same word again DISCARDS that text -- not a retry, unlike lock's `file in use`; Kill signals only the foreground job, so of `sleep 30; echo done` the @@ -119,15 +126,20 @@ the editor, not as a write error, so inspect the resulting pane, index, message or screen; only a malformed line fails the write itself. A word no builtin knows (a typo included) is a command line: written at a terminal at its prompt it is typed into that shell; from anywhere else it runs as a command -pane, a terminal whose child is `$SHELL -c` the line in the pane's -directory, which ends showing `exit N` (a typo: `exit 127`) and logs `run -<serial> <word>` and `exit <serial> <N|?>` -- `exec` reads back its serial, +pane, a terminal whose child is the root ctl's `Shell` (fish unless set) +running `-c` the line in the pane's directory, which ends showing `exit N` (a typo: `exit 127`) and logs `run +<serial> <line>` and `exit <serial> <N|?>` -- `exec` reads back its serial, so follow `log` for the exit. The directory's next command reuses a finished command pane, below what it showed. A terminal bound as a REPL (`Repl python` on its ctl) takes the middle clicks made on a `.py` body instead, but never a 9P write: a script sends code by writing the REPL pane's `pty/data`, and runs a command from such a file with `Exec <text>` or the -tag. Every refused 9P write adds an `err <serial|-> +tag. A bound terminal's `ctl` line ends with its id (`python-a`); an event +record written back from such a file's body goes to its REPL, as the click +would. `Repl -` unbinds; a bare `Repl` says the binding. Multi-line code +written to `pty/data` should be a bracketed paste, `\e[200~<code>\e[201~` +then `\r`: sent line by line, a blank line ends a Python block, and Python +3.14's REPL auto-indents each line it is typed. Every refused 9P write adds an `err <serial|-> <file>: <why>` record to `$m/log`; through a mount the write itself only says `Invalid argument`. @@ -240,8 +252,12 @@ A Restore puts a new editor under every client: the Restore write is answered, then every connection is hung up (their fids name the old editor's panes); dial again, and the new log names the restored panes then `restore <path>` -- the authority, since a slow client may see the cut -before the answer. `Dump` writes `pardes-<date>-<time>.zon` under `DumpDir` -(`~/.local/share/pardes` by default) and logs `dump <path>`. +before the answer. Through a 9ns mount the Restore write itself usually +fails with ECONNRESET although the Restore went ahead: 9ns fails a request +whose reply is already in when the hang-up breaks its next send. Trust the +log. `Dump` writes `pardes-<date>-<time>.zon`, the time in UTC, under +`DumpDir` (`$XDG_DATA_HOME/pardes`, else `~/.local/share/pardes`) and logs +`dump <path>`. Read the event implementation before building an interceptor. Close handles in `finally`, and disconnect after a socket timeout. The service shares four connection slots and 32 screen/terminal-history snapshot handles. @@ -47,9 +47,13 @@ pub const TreeSitterGrammars = enum { disabled, zig, minimal, full }; const gui_shaders = [_][]const u8{ "ui.vert", "ui.frag", + "decor.frag", "overlay.vert", "overlay.frag", "image.vert", "image.frag", - "crt.vert", "crt.frag", + "post.vert", + // The bundled post pass: shaders/post/crt.glsl behind the Shadertoy + // prefix (shaderSource). + "post-crt.frag", }; pub fn build(b: *std.Build) void { @@ -160,7 +164,7 @@ pub fn build(b: *std.Build) void { for (gui_shaders) |name| { update_shaders.addCopyFileToSource(compileGlsl(b, name), b.fmt("shaders/prebuilt/{s}.spv", .{name})); update_shaders.addCopyFileToSource( - b.path(b.fmt("shaders/{s}.glsl", .{name})), + shaderSource(b, name), b.fmt("shaders/prebuilt/{s}.glsl", .{name}), ); } @@ -694,7 +698,7 @@ pub fn build(b: *std.Build) void { mod.addOptions("pardes_isolation", if (isolated_mod == mod) iso_on else iso_off); if (shell == .gui) for (gui_shaders) |name| mod.addAnonymousImport( b.fmt("effect-source-{s}.glsl", .{name}), - .{ .root_source_file = b.path(b.fmt("{s}/{s}.glsl", .{ gui_effect_source_dir, name })) }, + .{ .root_source_file = if (prebuilt_shaders) b.path(b.fmt("{s}/{s}.glsl", .{ gui_effect_source_dir, name })) else shaderSource(b, name) }, ); if (shell == .macos) mod.addAnonymousImport("effect-source-crt.ci.metal", .{ .root_source_file = b.path("shaders/crt.ci.metal"), @@ -759,6 +763,8 @@ pub fn build(b: *std.Build) void { gm.addAnonymousImport("AdwaitaMono-Regular.ttf", .{ .root_source_file = b.path("assets/AdwaitaMono-Regular.ttf"), }); + // Put before a user's Shadertoy file when the gui compiles it. + gm.addAnonymousImport("post-prefix.glsl", .{ .root_source_file = b.path("shaders/post/prefix.glsl") }); for (gui_shaders) |name| gm.addAnonymousImport(b.fmt("{s}.spv", .{name}), .{ .root_source_file = if (prebuilt_shaders) b.path(b.fmt("shaders/prebuilt/{s}.spv", .{name})) @@ -1454,7 +1460,6 @@ pub fn build(b: *std.Build) void { .{ .path = "src/esp32p4/input_rescue.zig", .libc = false }, .{ .path = "src/fonts.zig", .libc = true }, .{ .path = "src/c_heap.zig", .libc = false }, - .{ .path = "src/gui/crt.zig", .libc = false }, }) |entry| { const tests = b.addTest(.{ .root_module = b.createModule(.{ @@ -1636,10 +1641,23 @@ fn reindexed(b: *std.Build, archive: std.Build.LazyPath, index: usize) std.Build // glslc shaders/<name>.glsl -fshader-stage=<vertex|fragment> -o <name>.spv, // returned as a LazyPath for @embedFile. The stage is the name's own suffix. +/// The GLSL a shader is compiled from: shaders/<name>.glsl, or for a bundled +/// post pass (post-<name>.frag) shaders/post/<name>.glsl behind the Shadertoy +/// prefix, the one the gui puts before a user's file at run time. +fn shaderSource(b: *std.Build, name: []const u8) std.Build.LazyPath { + if (!std.mem.startsWith(u8, name, "post-")) return b.path(b.fmt("shaders/{s}.glsl", .{name})); + const joined = b.addSystemCommand(&.{"cat"}); + joined.addFileArg(b.path("shaders/post/prefix.glsl")); + joined.addFileArg(b.path(b.fmt("shaders/post/{s}.glsl", .{name["post-".len .. name.len - ".frag".len]}))); + return joined.captureStdOut(.{}); +} + +/// The one glslc invocation every shader is compiled with, at build time here +/// and at run time for a user's post pass (src/gui/Post.zig). fn compileGlsl(b: *std.Build, name: []const u8) std.Build.LazyPath { const stage = if (std.mem.endsWith(u8, name, ".vert")) "vertex" else "fragment"; const cmd = b.addSystemCommand(&.{ "glslc", b.fmt("-fshader-stage={s}", .{stage}) }); - cmd.addFileArg(b.path(b.fmt("shaders/{s}.glsl", .{name}))); + cmd.addFileArg(shaderSource(b, name)); cmd.addArg("-o"); return cmd.addOutputFileArg(b.fmt("{s}.spv", .{name})); } diff --git a/docs/config.md b/docs/config.md index 9c51f329..16fd59e5 100644 --- a/docs/config.md +++ b/docs/config.md @@ -513,18 +513,19 @@ immediately and remains the one authoritative geometry. DOM web intentionally does not expose these builtins: its renderer is selectable HTML/CSS and has no canvas or shader stage. -The scene effects are independent switches and can be combined: +The scene effect is `Crt`, at a level from 0 (off) to 3; `on` is 2: ```text Crt -Ripple -Glitch +Crt 3 ``` -They share one full-scene shader pass in SDL and macOS. With all three off the -pass is bypassed. CRT works in linear light with restrained scanlines, mask, -bloom, curvature, and noise rather than remapping the theme to a strong fixed -palette; Ripple and Glitch primarily perturb sample coordinates. +The SDL GUI runs it as the bundled pass of its post chain, which also takes +Shadertoy files written for ghostty (`Shader ~/crt.glsl`, `Shader off`), and +`ShaderAnimation off|on|always` says when the chain animates on its own. With +the chain empty the pass is bypassed. CRT works in linear light with restrained +scanlines, mask, bloom and vignette, and no curvature, so clicks land where +they are drawn. `EffectCode PanelAscii` or `EffectCode Crt` lists the current backend's build-embedded source paths under `/virtual`. Look opens each full file; diff --git a/docs/design.typ b/docs/design.typ index 4765fabd..a6bf56a3 100644 --- a/docs/design.typ +++ b/docs/design.typ @@ -913,8 +913,9 @@ while its geometry moves and placed again on the last active sample. SDL supplies old/new glyph data, diff flags, final/presented boxes, and effect parameters to the glyph and native-image shaders. Pixel attachments bypass ASCII because they have no character byte. macOS passes the same records across its -plain C ABI and composites old/new panel images in Metal and Core Image. Scene -`Crt`, `Ripple` and `Glitch` bits share one full-window pass in each native GUI. +plain C ABI and composites old/new panel images in Metal and Core Image. The +scene `Crt` is one full-window pass in each native GUI; the SDL GUI's post +chain also runs Shadertoy files (`Shader`). DOM web is a separate platform, not a shader GUI: retaining selectable HTML and CSS is more important than duplicating the renderer in canvas, so it exposes @@ -62,8 +62,10 @@ private namespace: A `9ns --unix` mount lives in the private namespace of the command it runs, and nothing outside that command sees it. The mount everyone on the machine shares is the registry one, `9ns --mntgen` (default `/mnt/9p`): every running -editor posts itself there, so `/mnt/9p/pardes/<pid>/` is that editor's tree -for any process. A new pane made through `pane/new` is a scratch named +editor posts itself there, so `$NINE_MOUNT/pardes/<pid>/` is that editor's tree +for any process. 9ns exports `$NINE_MOUNT` to everything it starts, so a +script checks that variable to know the mount is there, and takes `<pid>` from +the name of `$PARDES_9P` (`pardes-9p-<pid>.sock`). A new pane made through `pane/new` is a scratch named `<dir>/+New` until it is given a name, and closing a column's last pane leaves such a `+New` in its place (`Delcol` closes the column). @@ -110,12 +112,15 @@ which quits the editor as acme's does (it refuses once, naming each pane with unsaved text, `<name>: Modified (Exit again to discard)`, and a second `Exit` with nothing edited since quits, throwing that text away; a scratch under 100 bytes is not asked about; `Restore`, which replaces every pane, -asks the same first -- `Dump` writes `pardes-<date>-<time>.zon` in +asks the same first -- `Dump` writes `pardes-<date>-<time>.zon` (UTC) in `DumpDir` (default `$XDG_DATA_HOME/pardes`, else `~/.local/share/pardes`) and logs `dump <path>`, and `Restore` with no path takes the last one; a Restore puts a new editor under every client, so the write of it is answered and then every connection is hung up, their fids naming the old -editor's panes: dial again, and the new log names the restored panes and +editor's panes (through a 9ns mount the write usually fails with +ECONNRESET all the same: 9ns fails a request whose reply is already in once +the hang-up breaks its next send, so trust the log): dial again, and the new +log names the restored panes and `restore <path>`. The answer has 200 ms to leave before the cut, so a slow client may see only the cut; the log's `restore <path>` is what says the Restore happened. Keeping connections across it would mean carrying serials @@ -130,7 +135,8 @@ start mark (C) to its end mark (D), where Kill sends its foreground job SIGTERM "kill" note, which ends a process -- and never signals the shell itself; in a shell running without job control (`set +m`) the job shares the shell's group, so there is none to signal: Kill says `Kill: no job to -signal`, and a write of it to `ctl` fails with that; and only the +signal`, and a write of it to `ctl` fails with that; with nothing running +it says `Kill: nothing running`; and only the foreground job, so of `sleep 30; echo done` the `echo` still runs once the `sleep` is stopped -- and reads every setting there is, one a line, in the words a write of it @@ -184,7 +190,7 @@ the keyboard no pane does: `/focus` reads empty and every pane's `ctl` says `notcurrent`. A write gives the keyboard and nothing else: a folded pane stays folded (unfold it with `Collapse` on its ctl), as rio keeps `current` apart from `unhide`. A serial no pane has fails with `no such -window`; anything but a number, with `ill-formed control message`. +pane`; anything but a number, with `ill-formed control message`. A pane is made by **opening** `/pane/new`, and closed by Tremove on `/pane/<n>` (`rmdir`), which is the only remove the tree serves; Tcreate is @@ -236,7 +242,8 @@ same tree without leaving the process. or anything else, a command line. Written at a terminal at its prompt it is typed into that shell. From anywhere else -- a file, a scratch, a tag, a terminal whose tty a program holds -- it runs as a command pane: a - terminal whose child is `$SHELL -c` the line in the pane's directory, + terminal whose child is the root ctl's `Shell` (fish unless set) run + with `-c` and the line, in the pane's directory, which shows its output and then `exit N` (its tag reads `<dir> (<line>) running`, then `exit N`), and stays. The command is over when its process exits, as in acme, not when its terminal closes: a job it left in the @@ -247,17 +254,21 @@ same tree without leaving the process. leaves any alternate screen and turns off the modes a program left on (mouse reports, bracketed paste, a hidden cursor); a command that clears the screen and its scrollback (`clear`, ED3) erases the history above it. A command pane's own exec starts - the next command there too. The log says `run <serial> <word>` and `exit + the next command there too. The log says `run <serial> <line>` and `exit <serial> <N|?>`; `exec` reads back the command pane's serial; Kill ends its whole process group; a line is at most 1 KB. A misspelled word is a command that says so and ends `exit 127`. `echo Tty > pane/<n>/ctl` makes an interactive terminal in that pane's directory. A terminal can be bound as a language's REPL: `Repl python` in its tag or -on its `ctl` (the language names are the syntax table's; `Repl -` unbinds, +on its `ctl` (the language names are the syntax table's, or a code fence's +alias such as `py`, in any case; `Repl -` unbinds, `Repl` bare says the binding, `Repl python` again changes nothing). Its tag -shows its id, `python-a`, `python-b` for the next, a freed letter reused. -Then an exec made by a gesture on the body of a file in that language -- a +shows its id, `python-a`, `python-b` for the next, a freed letter reused, +and so does the end of its `ctl` line, after `current`/`notcurrent`. +A builtin's word still runs first, bound or not: `Del` clicked in the file +closes its pane. Then any other exec made by a gesture on the body of a file +in that language -- a middle click, the execute key, on a selection or a single word, even `make` in a comment -- or on the REPL's own body is typed into the REPL instead of run: bracketed paste when its program asked for it (DECSET 2004), else line @@ -265,14 +276,20 @@ by line, where a blank line inside a Python block ends the block (said once), then Enter. The message row says `→ python-a` in the tag's name tint and the log `send <from> <to> <id>`. With several REPLs bound for the language the pane asks which, on its notice band, one key answering and Esc -sending nowhere; nothing is remembered. A command pane whose command is done -is no REPL any more. Still commands, whatever is bound: a word in a tag (so +sending nowhere; nothing is remembered. A REPL takes text only while its +program has the terminal: a command pane's until its command is done (the +binding goes with it, and a done one cannot be bound), an interactive +terminal's while a program other than its shell holds the tty -- after +Ctrl-D the shell would run the text, so nothing is sent and the pane says +so. Still commands, whatever is bound: a word in a tag (so the tag is how to run `make` from that file), `Exec <text>` run by name (typed, a 2-1 chord onto `Exec`, a `ctl` line) and a command word @`cmd` in the text, looked at or clicked (`# @`pytest -x`` in a script). A 9P `exec` is no gesture and is never sent: a script writes to the REPL pane's -`pty/data`. The REPL gets the text wherever it is -- at a `pdb` or `input()` -prompt too. Bindings are not dumped, so a Restore leaves none. +`pty/data`, multi-line code as a bracketed paste (`\e[200~<code>\e[201~` +then `\r`), since line by line a blank line ends a Python block and Python +3.14's REPL auto-indents each line typed into it. The REPL gets the text +wherever it is -- at a `pdb` or `input()` prompt too. Bindings are not dumped, so a Restore leaves none. The root's pair clicks at the active pane and `/pane/<n>/look` and `/pane/<n>/exec` at that pane. Blank lines are skipped, and every other line @@ -293,7 +310,10 @@ pane's own `look` or `exec`, or to the root's while that pane has the keyboard, a click with no place in the text: an `F` record at `0 0` carrying the line. So a client holding `event` that wants a command run gets its own exec back as a record: it runs it through `ctl`, or writes the record back. -Writing a record back performs the action. acme takes back only `<origin> +Writing a record back performs the action, as the click would have (acme's +xfideventwrite): a body `X` goes to a REPL bound for the text as a middle +click does, where an `F` record, a line written to `exec`, runs as the +command it was. acme takes back only `<origin> <action><q0> <q1>`, the text of that range; pardes takes the record whole as it was read too, and for an empty range acts on its text, which is how such a line is done. A click in a file's body carries the offsets of the text it @@ -490,7 +510,9 @@ for ever: cancel the read (interrupt it, or close the open) to give up; `error not run` when the shell refused the line without running it (a fish syntax error; the line is taken back off the prompt); `error shell gone` when the pane closed or its shell was -replaced; `error no prompt marks` for a shell pardes could not instrument. +replaced; `error no prompt marks` for a shell pardes could not instrument; +`error command done; not a shell` (or `error a command runs here, not a +shell`) on a command pane, whose child is its command. It relies on the OSC 133 marks pardes injects into bash and fish, tagged `aid=pardes` so fish's own marks and a nested shell's are ignored. A second line on an open whose command still runs fails the write. `exec zsh` or a diff --git a/docs/macos.md b/docs/macos.md index e104d3a6..5166e2d5 100644 --- a/docs/macos.md +++ b/docs/macos.md @@ -102,8 +102,8 @@ asking for a thin insert caret instead of a block. `Surface.images` crosses separately as `pardes_frame_images` / `pardes_frame_image_list` — see "Pixel attachments" below. -`pardes_scene` is the matching full-window snapshot: a bit each for CRT, -ripple, and glitch, plus the 60 Hz time/frame that animates them. It is returned +`pardes_scene` is the matching full-window snapshot: a bit for CRT, plus the +60 Hz time/frame that animates it. It is returned by value, so the renderer never holds a pointer into live core state. A zero flags word is also the fast-path contract: draw the CoreText frame directly. @@ -662,8 +662,7 @@ longer leaves a dark titlebar over a cream grid. ## Scene effects -`Crt`, `Ripple`, and `Glitch` are three switches over one postprocess, not three -stacked filters. Their canonical macOS source is `shaders/crt.ci.metal`, which +`Crt` is one full-window postprocess. Its canonical macOS source is `shaders/crt.ci.metal`, which the build installs as `pardes.app/Contents/Resources/crt.ci.metal`. The Swift shell loads that exact asset with `CIKernel.kernels(withMetalString:)` and runs it through a `CIContext` created from the system Metal device. The source is @@ -673,14 +672,12 @@ The ordinary CoreText/attachment/cursor pass is one function. With any scene bit or panel track it targets a retained, backing-scale bitmap; kernels then sample the complete frame into the flipped view. PDFs, image panes, taglines, rules, and the caret therefore receive the same effect. With every bit off and -no panel track the bitmap and Core Image context are bypassed entirely. Ripple -and glitch alter sample coordinates only, preserving theme colors; CRT works +no panel track the bitmap and Core Image context are bypassed entirely. CRT works in linear light with restrained bloom, scan/mask, vignette, hum, and noise instead of applying a broad color remap. The scene kernel alone receives a `clampedToExtent` image and the final output -is cropped back to the original finite extent. Coordinate tears and chroma -samples therefore clamp to the edge exactly like SDL's scene sampler instead +is cropped back to the original finite extent. Chroma samples therefore clamp to the edge exactly like SDL's scene sampler instead of acquiring transparent-black seams from Core Image's finite source image. The Zig side owns the clock. `pardes_animation_tick` increments its wrapped @@ -689,8 +686,8 @@ from that integer. Input bursts cannot accelerate the shader. Pointer input follows the same destination-to-source transform as the last presented scene frame before it is divided by the cell metrics. The view keeps -that exact `pardes_scene_s` snapshot and mirrors the Metal barrel, ripple and -glitch sampling arithmetic in `ScenePostprocessor.sourcePoint`; pixels outside +that exact `pardes_scene_s` snapshot and mirrors the Metal barrel arithmetic +in `ScenePostprocessor.sourcePoint`; pixels outside the CRT tube have no cell. The resulting displayed-grid cell then reaches the core, whose panel-track mapping resolves it to canonical pane content. @@ -716,8 +713,8 @@ while `pardesComposedInCore` effects only clip the already-composed core cells; pixel attachments have no character value and pass through unchanged. Because the input is the finished bitmap rather than a glyph-only batch, backgrounds, glyphs, taglines, rules, the caret, PDF pages, and image -panes move and dissolve together. Scene CRT/ripple/glitch runs once after the -panel composition. +panes move and dissolve together. The scene CRT runs once after the panel +composition. With no scene bit and no panel track the retained bitmap, Core Image context, and Metal passes are bypassed. `EffectCode Panel*` links to this Metal diff --git a/docs/open-questions.md b/docs/open-questions.md index a2ce2086..d4b5699c 100644 --- a/docs/open-questions.md +++ b/docs/open-questions.md @@ -11,7 +11,8 @@ Raised 2026-09-27 in the review of pardes against acme (Plan 9 source at **Decided 2026-09-28: a command pane.** Clicked or written at an interactive terminal at its prompt, the line is typed into that shell, whose state the clicker can see. From anywhere else it runs as its own terminal pane whose -child is `$SHELL -c` the line in the pane's directory: full emulation +child is the root ctl's `Shell` run with `-c` and the line, in the pane's +directory: full emulation (colours, `less`, `vim`, `sudo`'s prompt work), the exit status from waiting on the child (`exit N`, `exit 127` for a misspelling, no prompt marks needed), Kill signalling its process group, `run`/`exit` records in the log, @@ -57,3 +58,19 @@ behaviour inside a chosen terminal: a line in, `exit N` and its output out. The planned root `ctl` (session builtins) and pane `ctl` (pane builtins) refuse unknown words, whatever is decided here; the question is only what `exec` and the middle-click do with them. + +## Where does an exec from a code file go? + +**Decided 2026-09-28: to a REPL bound for its language, when one is.** +`Repl python` binds a terminal; then an exec made by a gesture (a middle +click, the execute key, a selection or a single word) on the body of a file +in that language, or on the REPL's own body, is typed into the REPL +instead of run. What stays a command whatever is bound: a builtin's word, +a word in a tag, `Exec <text>` run by name, a command word @`cmd` in the +text, and a 9P `exec` write (a script writes the REPL's `pty/data`). An +event record written back is done as the click it was, REPL and all. With +several bound the pane asks which, one key answering, and remembers +nothing. A REPL takes text only while its program has the terminal, and a +done command pane cannot be bound. Chosen over a per-file or per-directory +binding, which would need a place to keep and show it; bindings are not +dumped. `docs/fs.md` has the behaviour. diff --git a/docs/render-pipeline.md b/docs/render-pipeline.md index 2a679b8d..7c94fbea 100644 --- a/docs/render-pipeline.md +++ b/docs/render-pipeline.md @@ -491,21 +491,31 @@ Mirror ghostty 1.3.2 (`zig-pkg/ghostty-*/src/renderer/shadertoy.zig`, ≈3 cells, at the corners of a 4K screen, where the grips and rails are. `crt.zig` is deleted. If the user insists on barrel in the bundled CRT, keep `crt.zig`'s inverse keyed to "bundled crt active". -- **Compile**: GLSL → SPIR-V at runtime with glslang (ghostty's `pkg/glslang`, - the same vendored package in zig-pkg, GUI build only, behind `-Dshadertoy`). - Compiled on load and on file change (file_watch), never on the frame path; - the last good pipeline stays on error; the error is a pane message. glslang is - C++ with its own allocator: a recorded exception to the "Zig allocator hooks - in all C deps" policy. +- **Compile** (decision 3): a user's file is compiled by spawning `glslc` with + the build's own flags, prefix and file on its stdin, SPIR-V on its stdout + (no file of ours anywhere; std's spawn allocates before fork), on a thread of its own when the file joins the chain, never on the + frame path; the result is taken in at the next loop step. The prefix ends in + `#line 1`, so glslc's errors count the file's own lines, and they name the + file, not `<stdin>`. Level A redraws once a refresh of the window's display. A failed compile keeps the file's last good + pipeline and says glslc's first line as a message; glslc missing is said + once, and only files stay off (the bundled passes are compiled with the + build, through the same prefix). No file watching: `Shader <path>` twice + (out, then in) compiles it again. - **Animation mode**: `ShaderAnimation off|on|always` (ghostty's `custom-shader-animation`): off = redraw only when content changes; on = continuous while the window is focused; always = continuous. Continuous means the shell redraws its retained Surface (3.1), never a core tick or render. -- **Existing crt/ripple/glitch** become bundled Shadertoy files in - `shaders/post/` selected by the same builtins; `scene_effects` and - `crt.frag.glsl`/`crt.zig` are deleted. The bundled CRT is rewritten to - quality (6.1); ripple and glitch are dropped unless the feel review keeps a - rewritten version. +- **Existing crt** becomes a bundled Shadertoy file in `shaders/post/` under + the same builtin; `scene_effects` and `crt.frag.glsl`/`crt.zig` are deleted. + It takes a level, `Crt 0..3` (0 off, `on` the default 2, `off` and bare + still work), passed as `pardesLevel`: 2 is the polished rewrite, 3 at least + as strong as the old CRT (pixels changed by more than 8 in a channel against + a plain frame: 18.3% vs 17.4%). Ripple and Glitch were rewritten too, then + removed at the user's word after a live look (decision 8). The chain is + `Crt` and `Shader <path>` in the order they were put in + (`Shader off` empties it of files), `ShaderAnimation off|on|always` + (default on). The core keeps no clock for it: level A redraws are the + shell's. - macOS (out of scope) would need spirv-cross → MSL, as ghostty does. Region filters (e.g. "tint/blur one pane") are NOT built. If one is ever needed: @@ -803,15 +813,15 @@ stripped. No visual change until stage 9 unless stated. |---|---|---| | 0 | GUI capture goldens: a handful of scenes rendered hidden in capture mode, PPM hashes checked in (same machine/driver) | the safety net the GUI stages need; machine- and driver-specific, so a LOCAL gate only, never CI | | 1 | pure moves: render → `src/draw.zig`; Presentation/animation out of layout.zig | no behaviour | -| 2a | clock plumbing: `now_ns` into pump/events, `nextWake`, `advance`, deadlines for linger/hover; all shells pass now and sleep to the wake; six tick drivers deleted; ack moves into pump; capturePrevious only when transitions are on. Animations still compute `frame = floor(elapsed / 16 ms)`, so every curve is identical | pacing is corrected (144 Hz no longer ~25% slow, ssh no longer drifts): a bug fix allowed in this phase. Unit tests step an injected clock by exactly 16 ms, so their numbers do not change. The snapshot harness runs the binary with `--test-clock` (each core-time step is exactly 16.67 ms per tick request, as today), so goldens see the same sequence and `stable` (test/snapshot.zig ~861) is unaffected by wall-time pacing | +| 2a | clock plumbing: `Host.now` (the shell's monotonic ns) and `Pardes.advance(now)`, which runs one `.tick` per whole 16 ms frame since core time last stood still; `nextWake()` lists every core animation and answers the next frame while anything moves, the wait's end while something only waits (message linger, look-hover delay), null when idle; the pump sleeps to it and draws only stepped frames. No shell posts `.tick` any more (tty's timer thread only wakes the wait; GUI's AnimationClock, web's JS tick bank and the detached server's and the board's ticks are gone; grid mode moves its virtual clock straight to the next wake). `acknowledgePanelPresentation` stays in the shells (revisit at stage 8: grid mode acks `&.{}` on purpose). capturePrevious only when transitions are on. `.tick` stays as the one-frame step `advance` and the unit tests use, so every curve and every asserted number is unchanged | pacing is corrected (144 Hz no longer ~25% slow, ssh no longer drifts): a bug fix allowed in this phase. PARDES_TEST_CLOCK (set by the snapshot harness): tty and the detached server answer a virtual clock that a timed-out wait moves exactly to the core's next wake, so goldens replay the same frame sequence on any machine load. Review fixes: tty's wake timer is interruptible (a newer, shorter request cuts short an older sleep); a wait (linger, hover delay) is jumped to its end in one step, never counted against the 240-frame catch-up cap; an overshoot under 1.5 ms after a step is let go, so 60 and 120 Hz take exactly one step per display frame. Known exceptions: the GUI still polls every 16 ms when idle (SDL events, gamepad, fs tick, smooth scroll depend on it; revisit at stage 8); a minimized GUI renders every stepped frame of a running animation (stage 8) | | 2b | (on `fx`, feel-reviewed) Tween/Spring curves, settle rules, OKLab crossfades, new durations from §8.1 | a look change, kept apart from 2a so either can be bisected | | 3 | paint functions take `s: *Surface`; delete the swap hack | mechanical, wide | | 4 | PLACE: Region list built once; renderPane/tags/notices read their rects from it | wait for tag→Text; the refactor is already replacing BOX_H with `pane.tag_rows` and `p.tagTop/bodyTop(pane, r)` — PLACE absorbs those into the region rects | | 5 | JOIN: paint tags/notices/headers once into layers, copy into grid; the grid wins where the copies disagree, and each disagreement is listed for a later decision | goldens are the oracle; wide-grapheme re-clip at the edge (§3.2) | | 6 | body layer joined the same way (paint once, copy visible rows) | riskiest join; A/B the old double paint in a temporary test with tag_bottom on and off, then delete it | -| 7 | Layer merge (TagLayer + BodyLayer), wire v8, web accessors | after the other agent lands; touches mouse hit paths; breaks the macOS shell's layer ABI (accepted: macOS build ignored for now) | -| 8 | GUI draws from regions: role tiers with track groups in tiers 2-3, page cover, hard-edged snapped decor for rules/rails/grips (pane chrome in the pane's tier), per-instance clip; delete inference functions, `transient_on` and `mark_hover` (breaks macOS glass hover; accepted, macOS ignored for now) | stage-0 PPM goldens byte-identical (possible only because hard decor is snapped and not anti-aliased); pane chrome now also shows during transitions, which is the one allowed visible delta, listed | -| 9 | post chain: glslang, Shadertoy prefix, ping-pong, ShaderAnimation, redraw levels A/B (§5.5); bundled CRT without barrel; delete scene_effects/crt.zig/crt.frag | first visual change (the CRT look) | +| 7 | Layer merge (TagLayer + BodyLayer), wire v8, web accessors | after the other agent lands; touches mouse hit paths; breaks the macOS shell's layer ABI (accepted: macOS build ignored for now); done: one `Layer` (src/Layer.zig) with `rows` (0 = no layer) and a `cursor{x, y}`; a tag of N rows is ONE layer of N grid rows (`tagHit` answers the row as `line`, `bodyHit` keeps its meaning), so the per-line layer bases are gone. Wire v8 ships rows, cursor y and the region list in the one bump; v7 and v9 peers are refused in both directions (tests). web: `tag_layer_value` 11 = rows, 12 = cursor y, and app.mjs lays every row. macOS: its Zig side compiles against `Layer`, but pardes.h still sees one row per tag layer (a taller tag shows its first row there) | +| 8 | GUI draws from regions: role tiers with track groups in tiers 2-3, page cover, hard-edged snapped decor for rules/rails/grips (pane chrome in the pane's tier), per-instance clip; delete inference functions, `transient_on` and `mark_hover` (breaks macOS glass hover; accepted, macOS ignored for now) | stage-0 PPM goldens byte-identical (possible only because hard decor is snapped and not anti-aliased); pane chrome now also shows during transitions, which is the one allowed visible delta, listed Done: the frame is drawn in groups (makeGroups): tier 0, one group per track in paint order (tiers 2 and 3), tier 4 as two groups (the notices; then the guides and the debug box, which the core paints over them), tier 5 (bar cursors), each drawing cells, images, decor. Decor is every rule, rail, thumb, grip mark, spine, the workspace and column rules, the bottom band, notice rules and bar cursors: whole-pixel rects drawn by `decor.frag` over `ui.vert` as cell instances (colour in the ground, coverage in fg.r, blended like the overlay), so each carries its track's transition and clip; a closing pane's comes from the last frame's regions (`Surface.previous_regions`). Only `solid` exists yet: `decor.vert` and the other kinds (§5.1) come with the first effect that needs them. Deleted: taglineBaseRgb, topbarPaneBorderHeight, bottomTaglinePresent, frameChromeBg, cellBackgroundIs and the rail inference, paneGripCell's scan, transient_on, PaintPlan; one cover map (coverFrame: layer, grip and offset, focus, anchor, floating) is marked from layers and regions once a frame. New regions: `column` (spines, anchors, the focused column's tint), `guide`, `debug`; `Surface.chrome` is the palette, on the wire in v8 (not yet shipped, so no bump), and an attached GUI draws the same chrome (test). Per-instance clip (`CellInstance.clip_*`, 104 → 120 bytes an instance, ~15% more upload a frame) replaces the vertical transition's scissor. While any pane moves, opens or closes, notices stay in their own panes' groups, under whatever slides over them; tier 4 holds them only when nothing moves. Goldens: 01-12 byte-identical; 13-17 differ only in pixels past the grid (with a picture on screen the image pass left the scissor at the grid's size, cutting every rule end, rail foot and band that runs into the leftover pixels; they now run to the edge as in every scene without one); 16-debug shows the debug box (it was drawn from the grid under the source's context-row layer, so the GUI never showed it there); 18-mid-transition is new (virtual clock, PanelSlide Newcol with the picture, frame 6 of 12: chrome moves with its pane). Other deltas, outside the goldens: a guide over a tag or a context-row body now shows; with WindowOpacity < 100 a layer's bar cursor is ink like the grid's; an attached GUI gains the focus tint, notice rules, spines and the theme's page and caret colours. Deferrals fixed: the GUI sleeps when idle (SDL and queue events wake it; a smooth scroll, a gamepad, the test feed, a shell's kill deadline, a present to retry still poll), and a minimized or occluded window sleeps through animation. Tracy, `gui frame build`, 200x60, terminal output plus scrolling, ReleaseFast, two interleaved runs of ~180 frames: before 992/1015 µs median, after 989/987 µs | +| 9 | post chain: glslang, Shadertoy prefix, ping-pong, ShaderAnimation, redraw levels A/B (§5.5); bundled CRT without barrel; delete scene_effects/crt.zig/crt.frag | first visual change (the CRT look) Done: src/gui/Post.zig, shaders/post/ (prefix, crt, ripple, glitch), post.vert. glslc (decision 3) with compileGlsl's flags, off the frame path; ghostty's Uniforms matched offset for offset by a test against a copy, and the prefix's block checked name by name; ghostty's test_shadertoy_crt and _focus compile, _invalid fails with glslc's words. Level A measured (Tracy, 200x60, Crt, idle 10 s): 215 chain-only redraws at 34 µs median CPU each, 6 core frames (957 µs) in the same time; the core's clock stays idle. Input is identity (test: the corner click with Crt on). The three bundled passes were rewritten: Crt without barrel or tube edge, scanlines and mask that average to one, dithered vignette; Ripple as rings in pixels, eased in, lit on their slopes in linear light, dithered; Glitch as short eased bursts of torn bands with an RGB split, keyed to iTime. Before/after stills for the user's judgement. | | 10+ | `fx` bookmark: G1–G3 → feel review → G4 bundled → G5 lapis theme → P2s; tty T1–T2 → feel review → removals of audited effects (after user decision) → T3–T5 | each effect its own change, default off | Tests to add: fixed-clock animation tests (Tween/Spring closed form, retarget @@ -842,6 +852,26 @@ goldens; ssh/tty byte budgets; wire version bump breaks mixed-version attach. 4. The macOS shell breaks at stages 7 and 8 (Layer ABI, mark_hover). Accepted, since the macOS build is ignored for now. 5. Stage-0 GPU goldens gate locally only. +6. Revisit at the first visual stage (from stage 5): the notice layer lost + its hover word to keep the grid's behaviour. Notice words are Look/Exec + targets, so bring the hover affordance back in BOTH the grid and the + layer then. Done right after stage 8: a notice's word under the pointer + is lit as a header's is, in the layer and so in the grid's copy joined + from it. The same change deleted `mark_hover`, the `Cell.hover` bit and + the per-frame reset of it (never set since stage 5; macOS loses its + glass hover rect, accepted with open point 4). +7. Revisit at stage 8 (from stage 6): a body without context rows has no + layer (paint once, straight onto the grid). If the GUI is to read every + body from a layer, give every body one then and measure the copy. The + context-row path also still builds the body's text twice (a pre-pass + with body_rows 0 decides the context rows, renderBody builds it again at + the layer's rows); the paint is single. Measure both there. Decided at + stage 8, measured (Tracy, 200x60, TreeContext on a scrolled source, + ReleaseFast): the pre-pass text build is 5 µs median and the layer's + copies 10 µs per context-row body per frame. Kept as they are: nothing in + the GUI reads a layerless body from anything but the grid, which is + exact, so a layer for every body would be ~10 µs a body a frame for no + pixel. ## 15. Questions for the user @@ -873,3 +903,4 @@ goldens; ssh/tty byte budgets; wire version bump breaks mixed-version attach. 5. The animation pacing fix goes into the no-visual-change phase. 6. Cursor blink is on by default. 7. The bundled CRT has no barrel distortion, so clicks stay exact. +8. (After trying them live) Ripple and Glitch are removed entirely; Crt stays. diff --git a/docs/web.md b/docs/web.md index 3a68f958..bbbed8a3 100644 --- a/docs/web.md +++ b/docs/web.md @@ -42,7 +42,7 @@ shells, and two comptime capability flags say so once each. It exposes no `PanelAscii`, `PanelVertical`, `PanelEdges`, `PanelFall`, `PanelWave`, `PanelCurtain`, `PanelScramble`, `PanelType`) because `capabilities.panel_transitions` is `pardes.hosted`, and no -`Crt`/`Ripple`/`Glitch` because `capabilities.scene_shaders` is +`Crt` or `Shader` because `capabilities.scene_shaders` is `platform == .gui or platform == .macos` (`builtins.capabilities`; the words themselves carry those availabilities in `config.Runtime.settings`). Applying either faithfully would require a second canvas renderer and give up diff --git a/shaders/crt.ci.metal b/shaders/crt.ci.metal index c7e91a7e..9159af18 100644 --- a/shaders/crt.ci.metal +++ b/shaders/crt.ci.metal @@ -1,7 +1,6 @@ // Native macOS panel and scene postprocess. Panel kernels consume the core's -// plain tracks; the final full-window kernel ports crt.frag.glsl and combines -// CRT, ripple and glitch. Scene constants and sampling geometry stay in step -// with GLSL, while panel easing/noise stays in step with panel_animation.zig. +// plain tracks; the final full-window kernel is the CRT. Panel easing/noise +// stays in step with panel_animation.zig. // // The three entry points are `extern "C" [[stitchable]]`. Both halves are // load-bearing: this source is compiled at runtime by @@ -38,24 +37,6 @@ float pardesCellNoise(float2 serialParts, float colValue, float rowValue) { return float(x & 0xffffu) / 65535.0; } -float2 pardesSceneUV(float2 uv, float timeSeconds, float rippleOn, float glitchOn) { - if (rippleOn > 0.5) { - float2 centered = uv - 0.5; - float radius = length(centered); - // Reversed smoothstep edges are undefined in GLSL and Metal alike. - float envelope = 1.0 - smoothstep(0.04, 0.72, radius); - float wave = sin(radius * 42.0 - timeSeconds * 5.2); - uv += centered / max(radius, 0.00001) * wave * envelope * 0.0032; - } - if (glitchOn > 0.5) { - float band = floor(uv.y * 96.0); - float seed = pardesNoise(float2(band, floor(timeSeconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - uv.x += (pardesNoise(float2(seed, band)) - 0.5) * tear * 0.020; - } - return uv; -} - float4 pardesSceneSample( coreimage::sampler source, float2 origin, @@ -66,42 +47,13 @@ float4 pardesSceneSample( source.sample(source.transform(origin + uv * size))); } -// Keep this ordering identical to crt.frag.glsl's sceneSrgb: every caller -// supplies its own pre-warp coordinate, then ripple/glitch move that sample, -// then glitch splits its red/blue channels around the moved center. -float4 pardesSceneSrgb( - coreimage::sampler source, - float2 origin, - float2 size, - float2 uv, - float timeSeconds, - float rippleOn, - float glitchOn -) { - float2 warped = pardesSceneUV(uv, timeSeconds, rippleOn, glitchOn); - float4 center = pardesSceneSample(source, origin, size, warped); - if (glitchOn <= 0.5) return center; - - float band = floor(warped.y * 96.0); - float seed = pardesNoise(float2(band, floor(timeSeconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - float2 chroma = float2((0.35 + 1.25 * tear) / size.x, 0.0); - float4 red = pardesSceneSample(source, origin, size, warped + chroma); - float4 blue = pardesSceneSample(source, origin, size, warped - chroma); - return float4(red.r, center.g, blue.b, center.a); -} - float3 pardesSceneLinear( coreimage::sampler source, float2 origin, float2 size, - float2 uv, - float timeSeconds, - float rippleOn, - float glitchOn + float2 uv ) { - return coreimage::srgb_to_linear(pardesSceneSrgb( - source, origin, size, uv, timeSeconds, rippleOn, glitchOn).rgb); + return coreimage::srgb_to_linear(pardesSceneSample(source, origin, size, uv).rgb); } bool pardesInside(float2 p, float4 box) { @@ -242,8 +194,6 @@ extern "C" [[stitchable]] float4 pardesScene( float timeSeconds, float frame, float crtOn, - float rippleOn, - float glitchOn, float2 sceneSize, float2 sceneOrigin, coreimage::destination destination @@ -277,24 +227,18 @@ extern "C" [[stitchable]] float4 pardesScene( // transparent theme. if (crtOn > 0.5 && edge <= 0.0) return float4(0.0, 0.0, 0.0, 1.0); - float4 center = pardesSceneSrgb( - source, origin, size, uv, timeSeconds, rippleOn, glitchOn); + float4 center = pardesSceneSample(source, origin, size, uv); float3 scene = center.rgb; - // Ripple/glitch alone are coordinate effects. Returning the sampled sRGB - // values directly keeps exact theme colors exact. + // Without the CRT the scene passes through, exact. if (crtOn <= 0.5) { return coreimage::premultiply(float4(clamp(scene, 0.0, 1.0), center.a)); } float3 centerLinear = coreimage::srgb_to_linear(scene); float2 radialChroma = cc * (chromaPx * r2) * texel; - float3 redSample = pardesSceneLinear( - source, origin, size, uv + radialChroma, - timeSeconds, rippleOn, glitchOn); - float3 blueSample = pardesSceneLinear( - source, origin, size, uv - radialChroma, - timeSeconds, rippleOn, glitchOn); + float3 redSample = pardesSceneLinear(source, origin, size, uv + radialChroma); + float3 blueSample = pardesSceneLinear(source, origin, size, uv - radialChroma); float3 col = float3( redSample.r, centerLinear.g, @@ -308,8 +252,7 @@ extern "C" [[stitchable]] float4 pardesScene( float2(0.0, bloom.y), float2(0.0, -bloom.y) }; for (uint i = 0; i < 4; i++) { - // Deliberately raw, like GLSL brightPass: bloom belongs to the source - // image and does not recursively warp through the scene effects. + // Deliberately raw, like GLSL brightPass. float4 sampleValue = pardesSceneSample( source, origin, size, uv + bloomOffsets[i]); float3 linearValue = coreimage::srgb_to_linear(sampleValue.rgb); diff --git a/shaders/crt.frag.glsl b/shaders/crt.frag.glsl deleted file mode 100644 index b0b0b93b..00000000 --- a/shaders/crt.frag.glsl +++ /dev/null @@ -1,175 +0,0 @@ -#version 450 - -// The Crt builtin's post-process. Screen point cc shows the scene at -// uv' = cc*(1 + BARREL*r2), and src/gui/crt.zig maps mouse input through that -// same transform — keep them equal or clicks drift near the edges. - -layout(set = 2, binding = 0) uniform sampler2D u_scene; -layout(std140, set = 3, binding = 0) uniform CrtUniforms { - float time_seconds; - float frame; - vec2 viewport; - // x = CRT, y = ripple, z = glitch. One scene pass can combine them. - vec4 effects; -} u_crt; - -layout(location = 0) out vec4 o_col; - -const float TAU = 6.28318530718; -const float BARREL = 0.016; // MUST match src/gui/crt.zig barrel -const float EDGE_SOFTNESS_PX = 3.5; -const float CHROMA_PX = 0.28; // radial R/B separation in physical pixels at r2=1 -const float BLOOM_RADIUS_PX = 1.75; -const float BLOOM_THRESHOLD = 0.60; // linear-light channel peak -const float BLOOM_SOFTNESS = 0.25; -const float BLOOM_STRENGTH = 0.045; -const float SCAN_PERIOD_PX = 3.0; -const float SCAN_STRENGTH = 0.055; -const float MASK_PERIOD_PX = 3.0; -const float MASK_STRENGTH = 0.015; -const float VIGNETTE_STRENGTH = 0.11; // 11% only at the extreme corners -const float HUM_STRENGTH = 0.0025; -const float NOISE_STRENGTH = 0.0020; -const float EXPOSURE = 1.012; - -vec3 srgbToLinear(vec3 c) { - vec3 low = c / 12.92; - vec3 high = pow((c + 0.055) / 1.055, vec3(2.4)); - return mix(high, low, lessThanEqual(c, vec3(0.04045))); -} - -vec3 linearToSrgb(vec3 c) { - c = max(c, vec3(0.0)); - vec3 low = c * 12.92; - vec3 high = 1.055 * pow(c, vec3(1.0 / 2.4)) - 0.055; - return mix(high, low, lessThanEqual(c, vec3(0.0031308))); -} - -vec3 sceneLinear(vec2 uv) { - return srgbToLinear(texture(u_scene, uv).rgb); -} - -vec3 brightPass(vec2 uv) { - vec3 c = sceneLinear(uv); - float peak = max(c.r, max(c.g, c.b)); - return c * smoothstep(BLOOM_THRESHOLD, BLOOM_THRESHOLD + BLOOM_SOFTNESS, peak); -} - -float noiseAt(vec2 p) { - vec3 q = fract(vec3(p.xyx) * 0.1031); - q += dot(q, q.yzx + 33.33); - return fract((q.x + q.y) * q.z); -} - -// The non-CRT scene effects deliberately distort the source coordinates, -// rather than remapping the final colors. Themes retain their palette and the -// effects remain composable with the linear-light CRT treatment below. -vec2 sceneUv(vec2 uv) { - if (u_crt.effects.y > 0.5) { - vec2 centered = uv - 0.5; - float radius = length(centered); - float envelope = 1.0 - smoothstep(0.04, 0.72, radius); - float wave = sin(radius * 42.0 - u_crt.time_seconds * 5.2); - uv += centered / max(radius, 0.00001) * wave * envelope * 0.0032; - } - if (u_crt.effects.z > 0.5) { - float band = floor(uv.y * 96.0); - float seed = noiseAt(vec2(band, floor(u_crt.time_seconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - uv.x += (noiseAt(vec2(seed, band)) - 0.5) * tear * 0.020; - } - return uv; -} - -// The scene, ALPHA INCLUDED: with a see-through ground the grid arrives -// premultiplied and partly empty, and a pass that dropped .a would turn the -// desktop behind a `*_transparent` theme into opaque black the moment Crt, -// Ripple or Glitch came on. -vec4 sceneSrgb(vec2 uv) { - vec2 warped = sceneUv(uv); - vec4 center = texture(u_scene, warped); - if (u_crt.effects.z <= 0.5) return center; - - float band = floor(warped.y * 96.0); - float seed = noiseAt(vec2(band, floor(u_crt.time_seconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - vec2 chroma = vec2((0.35 + 1.25 * tear) / u_crt.viewport.x, 0.0); - return vec4( - texture(u_scene, warped + chroma).r, - center.g, - texture(u_scene, warped - chroma).b, - center.a - ); -} - -vec3 effectSceneLinear(vec2 uv) { - return srgbToLinear(sceneSrgb(uv).rgb); -} - -void main() { - vec2 size = u_crt.viewport; - vec2 texel = 1.0 / size; - vec2 cc = gl_FragCoord.xy / size * 2.0 - 1.0; - float r2 = dot(cc, cc); - vec2 uv = cc * (1.0 + BARREL * r2 * u_crt.effects.x) * 0.5 + 0.5; - - // Ripple and glitch are useful without the CRT. They only move samples; - // skip every tube-specific light/mask/exposure adjustment. - if (u_crt.effects.x <= 0.5) { - // The scene texture is already sRGB. Avoid a needless transfer-curve - // round trip so a coordinate-only effect preserves theme bytes. - vec4 s = sceneSrgb(uv); - o_col = vec4(clamp(s.rgb, 0.0, 1.0), clamp(s.a, 0.0, 1.0)); - return; - } - - vec3 col = vec3(0.0); - // Outside the tube nothing is drawn, so nothing is covered either: the - // old opaque black there would have punched a rectangle out of the - // compositor's backdrop. - float alpha = 0.0; - float edge = min(min(uv.x, uv.y), min(1.0 - uv.x, 1.0 - uv.y)); - if (edge > 0.0) { - vec3 center = effectSceneLinear(uv); - vec2 chroma = cc * (CHROMA_PX * r2) * texel; - // Each radial sample follows the same ripple/glitch path from its own - // pre-warp coordinate. This is also how the Metal kernel composes the - // effects; sampling a once-warped center here made combined effects - // diverge between the two GUI backends. - col = vec3( - effectSceneLinear(uv + chroma).r, - center.g, - effectSceneLinear(uv - chroma).b - ); - - vec2 bloom_px = texel * BLOOM_RADIUS_PX; - vec3 bloom = brightPass(uv + vec2(bloom_px.x, 0.0)) + - brightPass(uv - vec2(bloom_px.x, 0.0)) + - brightPass(uv + vec2(0.0, bloom_px.y)) + - brightPass(uv - vec2(0.0, bloom_px.y)); - col += bloom * (0.25 * BLOOM_STRENGTH); - - // The mask has unit mean and the scan loss stays small; neither needs - // the old global lift that remapped every theme toward white. - float scan_wave = 0.5 + 0.5 * cos(gl_FragCoord.y * TAU / SCAN_PERIOD_PX); - col *= 1.0 - SCAN_STRENGTH * scan_wave * scan_wave; - vec3 mask = 1.0 + MASK_STRENGTH * cos( - gl_FragCoord.x * TAU / MASK_PERIOD_PX + vec3(0.0, TAU / 3.0, 2.0 * TAU / 3.0) - ); - col *= mask; - - vec2 edge_px = min(uv, 1.0 - uv) * size; - float tube = smoothstep(0.0, EDGE_SOFTNESS_PX, min(edge_px.x, edge_px.y)); - float vignette = 1.0 - VIGNETTE_STRENGTH * pow(clamp(r2 * 0.5, 0.0, 1.0), 1.6); - float hum = 1.0 + HUM_STRENGTH * sin((uv.y * 1.35 - u_crt.time_seconds * 0.11) * TAU); - col *= tube * vignette * hum * EXPOSURE; - // The tube's edge falloff dims coverage as well as colour; everything - // else here is a light adjustment and leaves it alone. - alpha = sceneSrgb(uv).a * tube; - - float luma = dot(col, vec3(0.2126, 0.7152, 0.0722)); - vec2 noise_seed = gl_FragCoord.xy + vec2(u_crt.frame * 17.0, u_crt.frame * 59.0); - col += (noiseAt(noise_seed) - 0.5) * NOISE_STRENGTH * (0.15 + 0.85 * clamp(luma, 0.0, 1.0)); - } - o_col = vec4(linearToSrgb(clamp(col, 0.0, 1.0)), clamp(alpha, 0.0, 1.0)); -} diff --git a/shaders/crt.vert.glsl b/shaders/crt.vert.glsl deleted file mode 100644 index 4e15fcdf..00000000 --- a/shaders/crt.vert.glsl +++ /dev/null @@ -1,9 +0,0 @@ -#version 450 - -// CRT post-process pass: one fullscreen triangle from gl_VertexIndex, no -// vertex buffer. The fragment shader derives uv from gl_FragCoord. - -void main() { - vec2 p = vec2(float((gl_VertexIndex << 1) & 2), float(gl_VertexIndex & 2)); - gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0); -} diff --git a/shaders/decor.frag.glsl b/shaders/decor.frag.glsl new file mode 100644 index 00000000..4c2bd6d8 --- /dev/null +++ b/shaders/decor.frag.glsl @@ -0,0 +1,24 @@ +#version 450 + +// Decor: a flat, hard-edged fill (a rule, a rail, a grip mark, a bar cursor) +// that ui.vert.glsl places like a cell, its track's transition included. Its +// colour rides in the cell's ground (a_bg) and its coverage in a_fg.r. The +// pipeline blends it as the overlay pipeline does (backgroundLayerBlend), so +// a fading rule shows through, and the result is that pipeline's exactly. +// Ink (a cursor) is drawn with the opacity uniform at 1. + +layout(std140, set = 3, binding = 0) uniform UiUniforms { + float background_opacity; +} u_ui; + +layout(location = 1) in vec3 v_fg; +layout(location = 2) in vec3 v_bg; +layout(location = 5) flat in vec4 v_clip; + +layout(location = 0) out vec4 o_col; + +void main() { + if (v_clip.z >= v_clip.x && (gl_FragCoord.x < v_clip.x || gl_FragCoord.x >= v_clip.z || + gl_FragCoord.y < v_clip.y || gl_FragCoord.y >= v_clip.w)) discard; + o_col = vec4(v_bg * clamp(u_ui.background_opacity, 0.0, 1.0), v_fg.r); +} diff --git a/shaders/post.vert.glsl b/shaders/post.vert.glsl new file mode 100644 index 00000000..86739a65 --- /dev/null +++ b/shaders/post.vert.glsl @@ -0,0 +1,10 @@ +#version 450 + +// A post pass (docs/render-pipeline.md §6): one fullscreen triangle from +// gl_VertexIndex, no vertex buffer. The Shadertoy fragment shader works from +// gl_FragCoord, y down, as its fragCoord. + +void main() { + vec2 p = vec2(float((gl_VertexIndex << 1) & 2), float(gl_VertexIndex & 2)); + gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0); +} diff --git a/shaders/post/crt.glsl b/shaders/post/crt.glsl new file mode 100644 index 00000000..768157ef --- /dev/null +++ b/shaders/post/crt.glsl @@ -0,0 +1,83 @@ +// Crt: a slot-mask tube's light, with nothing that moves a pixel. There is +// no barrel: every click lands where it is drawn, rails and grips at the +// window's edges included. What is left is light: a beam profile for the +// scanlines, an aperture mask, a soft bloom of the brightest ink, a faint +// vignette and the hum of a live tube. Everything is worked out in linear +// light and dithered back into 8 bits, so the vignette never bands. It is a +// Shadertoy file: pardes puts its prefix before it (shaders/post/prefix.glsl). + +const float TAU = 6.28318530718; +// Level 3 glows wider and from dimmer ink. +float bloomRadiusPx() { return pardesByLevel(1.75, 1.75, 3.0); } +float bloomThreshold() { return pardesByLevel(0.6, 0.6, 0.3); } // linear-light channel peak +const float BLOOM_SOFTNESS = 0.25; +const float SCAN_PERIOD_PX = 3.0; +const float MASK_PERIOD_PX = 3.0; +const float HUM_HZ = 0.11; + +// Each strength at levels 1, 2 and 3 (`Crt 1`..`Crt 3`): 2 is the default, +// 3 as strong as the old barrel CRT looked. +float chromaPx() { return pardesByLevel(0.2, 0.35, 2.2); } // red and blue apart, at the corners +float bloomStrength() { return pardesByLevel(0.03, 0.05, 0.3); } +float scanStrength() { return pardesByLevel(0.035, 0.07, 0.42); } +float maskStrength() { return pardesByLevel(0.01, 0.018, 0.12); } +float vignetteStrength() { return pardesByLevel(0.06, 0.12, 0.42); } // at the far corners only +float humStrength() { return pardesByLevel(0.002, 0.004, 0.012); } +float exposure() { return pardesByLevel(1.008, 1.015, 1.1); } + +vec3 toLinear(vec3 c) { + return mix(pow((c + 0.055) / 1.055, vec3(2.4)), c / 12.92, lessThanEqual(c, vec3(0.04045))); +} + +vec3 toSrgb(vec3 c) { + c = max(c, vec3(0.0)); + return mix(1.055 * pow(c, vec3(1.0 / 2.4)) - 0.055, c * 12.92, lessThanEqual(c, vec3(0.0031308))); +} + +vec3 scene(vec2 uv) { + return toLinear(texture(iChannel0, uv).rgb); +} + +vec3 brightPass(vec2 uv) { + vec3 c = scene(uv); + float peak = max(c.r, max(c.g, c.b)); + return c * smoothstep(bloomThreshold(), bloomThreshold() + BLOOM_SOFTNESS, peak); +} + +// Interleaved gradient noise: a dither with no visible pattern. +float ign(vec2 p) { + return fract(52.9829189 * fract(dot(p, vec2(0.06711056, 0.00583715)))); +} + +void mainImage(out vec4 fragColor, in vec2 fragCoord) { + vec2 size = iResolution.xy; + vec2 texel = 1.0 / size; + vec2 uv = fragCoord / size; + vec2 cc = uv * 2.0 - 1.0; + float r2 = dot(cc, cc); + + // The beam converges least at the corners: red and blue drift apart + // there, by a third of a pixel. + vec2 chroma = cc * (chromaPx() * r2 * 0.5) * texel; + vec3 col = vec3(scene(uv + chroma).r, scene(uv).g, scene(uv - chroma).b); + + vec2 b = texel * bloomRadiusPx(); + vec3 bloom = brightPass(uv + vec2(b.x, 0.0)) + brightPass(uv - vec2(b.x, 0.0)) + + brightPass(uv + vec2(0.0, b.y)) + brightPass(uv - vec2(0.0, b.y)); + col += bloom * (0.25 * bloomStrength()); + + // A beam is brightest on its line and falls off between lines; the + // mask is three phosphor stripes a triad. Both average to one, so the + // theme keeps its brightness. + float line = 0.5 + 0.5 * cos(fragCoord.y * TAU / SCAN_PERIOD_PX); + col *= 1.0 - scanStrength() * (line * line - 0.375) / 0.625; + col *= 1.0 + maskStrength() * cos(fragCoord.x * TAU / MASK_PERIOD_PX + vec3(0.0, TAU / 3.0, 2.0 * TAU / 3.0)); + + float vignette = 1.0 - vignetteStrength() * pow(clamp(r2 * 0.5, 0.0, 1.0), 1.6); + float hum = 1.0 + humStrength() * sin((uv.y * 1.35 - iTime * HUM_HZ) * TAU); + col *= vignette * hum * exposure(); + + vec3 srgb = toSrgb(col); + srgb += (ign(fragCoord + float(iFrame % 64) * vec2(5.588238, 5.588238)) - 0.5) / 255.0; + fragColor = vec4(clamp(srgb, 0.0, 1.0), texture(iChannel0, uv).a); +} diff --git a/shaders/post/prefix.glsl b/shaders/post/prefix.glsl new file mode 100644 index 00000000..e718a98f --- /dev/null +++ b/shaders/post/prefix.glsl @@ -0,0 +1,74 @@ +#version 450 +// pardes's Shadertoy prefix (docs/render-pipeline.md §6), put before every +// post pass: a bundled one in shaders/post/ at build time, a user's file at +// run time. The uniform names, types and std140 order are ghostty 1.3.2's +// (src/renderer/shaders/shadertoy_prefix.glsl), so a shader written for +// ghostty runs here; only the bindings are SDL GPU's (a fragment shader's +// textures in set 2, its uniform blocks in set 3). Y is down everywhere, as +// on ghostty's Metal renderer: fragCoord, iChannel0's uv and the cursor +// rectangles share one top-left space, and iCurrentCursor is (left x, +// BOTTOM-edge y, width, height) in framebuffer pixels. + +layout(set = 3, binding = 0, std140) uniform Globals { + uniform vec3 iResolution; + uniform float iTime; + uniform float iTimeDelta; + uniform float iFrameRate; + uniform int iFrame; + uniform float iChannelTime[4]; + uniform vec3 iChannelResolution[4]; + uniform vec4 iMouse; + uniform vec4 iDate; + uniform float iSampleRate; + uniform vec4 iCurrentCursor; + uniform vec4 iPreviousCursor; + uniform vec4 iCurrentCursorColor; + uniform vec4 iPreviousCursorColor; + uniform int iCurrentCursorStyle; + uniform int iPreviousCursorStyle; + uniform int iCursorVisible; + uniform float iTimeCursorChange; + uniform float iTimeFocus; + uniform int iFocus; + uniform vec3 iPalette[256]; + uniform vec3 iBackgroundColor; + uniform vec3 iForegroundColor; + uniform vec3 iCursorColor; + uniform vec3 iCursorText; + uniform vec3 iSelectionForegroundColor; + uniform vec3 iSelectionBackgroundColor; +}; + +// pardes's own: pardesOpaque is 1 when the window is opaque, so a pass +// cannot punch holes in it through its alpha; pardesLevel is a bundled +// pass's strength, 1 to 3 (`Crt 3`), and 0 for a user's file. +layout(set = 3, binding = 1, std140) uniform PardesPost { + float pardesOpaque; + float pardesLevel; +}; + +// A bundled pass's constant at levels 1, 2 and 3. +float pardesByLevel(float one, float two, float three) { + return pardesLevel < 1.5 ? one : (pardesLevel < 2.5 ? two : three); +} + +#define CURSORSTYLE_BLOCK 0 +#define CURSORSTYLE_BLOCK_HOLLOW 1 +#define CURSORSTYLE_BAR 2 +#define CURSORSTYLE_UNDERLINE 3 +#define CURSORSTYLE_LOCK 4 + +layout(set = 2, binding = 0) uniform sampler2D iChannel0; + +layout(location = 0) out vec4 _fragColor; + +#define texture2D texture + +void mainImage(out vec4 fragColor, in vec2 fragCoord); +void main() { + mainImage(_fragColor, gl_FragCoord.xy); + if (pardesOpaque > 0.5) _fragColor.a = 1.0; +} + +// The shader's own lines count from 1, so glslc's errors name them. +#line 1 diff --git a/shaders/prebuilt/crt.frag.glsl b/shaders/prebuilt/crt.frag.glsl deleted file mode 100644 index b0b0b93b..00000000 --- a/shaders/prebuilt/crt.frag.glsl +++ /dev/null @@ -1,175 +0,0 @@ -#version 450 - -// The Crt builtin's post-process. Screen point cc shows the scene at -// uv' = cc*(1 + BARREL*r2), and src/gui/crt.zig maps mouse input through that -// same transform — keep them equal or clicks drift near the edges. - -layout(set = 2, binding = 0) uniform sampler2D u_scene; -layout(std140, set = 3, binding = 0) uniform CrtUniforms { - float time_seconds; - float frame; - vec2 viewport; - // x = CRT, y = ripple, z = glitch. One scene pass can combine them. - vec4 effects; -} u_crt; - -layout(location = 0) out vec4 o_col; - -const float TAU = 6.28318530718; -const float BARREL = 0.016; // MUST match src/gui/crt.zig barrel -const float EDGE_SOFTNESS_PX = 3.5; -const float CHROMA_PX = 0.28; // radial R/B separation in physical pixels at r2=1 -const float BLOOM_RADIUS_PX = 1.75; -const float BLOOM_THRESHOLD = 0.60; // linear-light channel peak -const float BLOOM_SOFTNESS = 0.25; -const float BLOOM_STRENGTH = 0.045; -const float SCAN_PERIOD_PX = 3.0; -const float SCAN_STRENGTH = 0.055; -const float MASK_PERIOD_PX = 3.0; -const float MASK_STRENGTH = 0.015; -const float VIGNETTE_STRENGTH = 0.11; // 11% only at the extreme corners -const float HUM_STRENGTH = 0.0025; -const float NOISE_STRENGTH = 0.0020; -const float EXPOSURE = 1.012; - -vec3 srgbToLinear(vec3 c) { - vec3 low = c / 12.92; - vec3 high = pow((c + 0.055) / 1.055, vec3(2.4)); - return mix(high, low, lessThanEqual(c, vec3(0.04045))); -} - -vec3 linearToSrgb(vec3 c) { - c = max(c, vec3(0.0)); - vec3 low = c * 12.92; - vec3 high = 1.055 * pow(c, vec3(1.0 / 2.4)) - 0.055; - return mix(high, low, lessThanEqual(c, vec3(0.0031308))); -} - -vec3 sceneLinear(vec2 uv) { - return srgbToLinear(texture(u_scene, uv).rgb); -} - -vec3 brightPass(vec2 uv) { - vec3 c = sceneLinear(uv); - float peak = max(c.r, max(c.g, c.b)); - return c * smoothstep(BLOOM_THRESHOLD, BLOOM_THRESHOLD + BLOOM_SOFTNESS, peak); -} - -float noiseAt(vec2 p) { - vec3 q = fract(vec3(p.xyx) * 0.1031); - q += dot(q, q.yzx + 33.33); - return fract((q.x + q.y) * q.z); -} - -// The non-CRT scene effects deliberately distort the source coordinates, -// rather than remapping the final colors. Themes retain their palette and the -// effects remain composable with the linear-light CRT treatment below. -vec2 sceneUv(vec2 uv) { - if (u_crt.effects.y > 0.5) { - vec2 centered = uv - 0.5; - float radius = length(centered); - float envelope = 1.0 - smoothstep(0.04, 0.72, radius); - float wave = sin(radius * 42.0 - u_crt.time_seconds * 5.2); - uv += centered / max(radius, 0.00001) * wave * envelope * 0.0032; - } - if (u_crt.effects.z > 0.5) { - float band = floor(uv.y * 96.0); - float seed = noiseAt(vec2(band, floor(u_crt.time_seconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - uv.x += (noiseAt(vec2(seed, band)) - 0.5) * tear * 0.020; - } - return uv; -} - -// The scene, ALPHA INCLUDED: with a see-through ground the grid arrives -// premultiplied and partly empty, and a pass that dropped .a would turn the -// desktop behind a `*_transparent` theme into opaque black the moment Crt, -// Ripple or Glitch came on. -vec4 sceneSrgb(vec2 uv) { - vec2 warped = sceneUv(uv); - vec4 center = texture(u_scene, warped); - if (u_crt.effects.z <= 0.5) return center; - - float band = floor(warped.y * 96.0); - float seed = noiseAt(vec2(band, floor(u_crt.time_seconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - vec2 chroma = vec2((0.35 + 1.25 * tear) / u_crt.viewport.x, 0.0); - return vec4( - texture(u_scene, warped + chroma).r, - center.g, - texture(u_scene, warped - chroma).b, - center.a - ); -} - -vec3 effectSceneLinear(vec2 uv) { - return srgbToLinear(sceneSrgb(uv).rgb); -} - -void main() { - vec2 size = u_crt.viewport; - vec2 texel = 1.0 / size; - vec2 cc = gl_FragCoord.xy / size * 2.0 - 1.0; - float r2 = dot(cc, cc); - vec2 uv = cc * (1.0 + BARREL * r2 * u_crt.effects.x) * 0.5 + 0.5; - - // Ripple and glitch are useful without the CRT. They only move samples; - // skip every tube-specific light/mask/exposure adjustment. - if (u_crt.effects.x <= 0.5) { - // The scene texture is already sRGB. Avoid a needless transfer-curve - // round trip so a coordinate-only effect preserves theme bytes. - vec4 s = sceneSrgb(uv); - o_col = vec4(clamp(s.rgb, 0.0, 1.0), clamp(s.a, 0.0, 1.0)); - return; - } - - vec3 col = vec3(0.0); - // Outside the tube nothing is drawn, so nothing is covered either: the - // old opaque black there would have punched a rectangle out of the - // compositor's backdrop. - float alpha = 0.0; - float edge = min(min(uv.x, uv.y), min(1.0 - uv.x, 1.0 - uv.y)); - if (edge > 0.0) { - vec3 center = effectSceneLinear(uv); - vec2 chroma = cc * (CHROMA_PX * r2) * texel; - // Each radial sample follows the same ripple/glitch path from its own - // pre-warp coordinate. This is also how the Metal kernel composes the - // effects; sampling a once-warped center here made combined effects - // diverge between the two GUI backends. - col = vec3( - effectSceneLinear(uv + chroma).r, - center.g, - effectSceneLinear(uv - chroma).b - ); - - vec2 bloom_px = texel * BLOOM_RADIUS_PX; - vec3 bloom = brightPass(uv + vec2(bloom_px.x, 0.0)) + - brightPass(uv - vec2(bloom_px.x, 0.0)) + - brightPass(uv + vec2(0.0, bloom_px.y)) + - brightPass(uv - vec2(0.0, bloom_px.y)); - col += bloom * (0.25 * BLOOM_STRENGTH); - - // The mask has unit mean and the scan loss stays small; neither needs - // the old global lift that remapped every theme toward white. - float scan_wave = 0.5 + 0.5 * cos(gl_FragCoord.y * TAU / SCAN_PERIOD_PX); - col *= 1.0 - SCAN_STRENGTH * scan_wave * scan_wave; - vec3 mask = 1.0 + MASK_STRENGTH * cos( - gl_FragCoord.x * TAU / MASK_PERIOD_PX + vec3(0.0, TAU / 3.0, 2.0 * TAU / 3.0) - ); - col *= mask; - - vec2 edge_px = min(uv, 1.0 - uv) * size; - float tube = smoothstep(0.0, EDGE_SOFTNESS_PX, min(edge_px.x, edge_px.y)); - float vignette = 1.0 - VIGNETTE_STRENGTH * pow(clamp(r2 * 0.5, 0.0, 1.0), 1.6); - float hum = 1.0 + HUM_STRENGTH * sin((uv.y * 1.35 - u_crt.time_seconds * 0.11) * TAU); - col *= tube * vignette * hum * EXPOSURE; - // The tube's edge falloff dims coverage as well as colour; everything - // else here is a light adjustment and leaves it alone. - alpha = sceneSrgb(uv).a * tube; - - float luma = dot(col, vec3(0.2126, 0.7152, 0.0722)); - vec2 noise_seed = gl_FragCoord.xy + vec2(u_crt.frame * 17.0, u_crt.frame * 59.0); - col += (noiseAt(noise_seed) - 0.5) * NOISE_STRENGTH * (0.15 + 0.85 * clamp(luma, 0.0, 1.0)); - } - o_col = vec4(linearToSrgb(clamp(col, 0.0, 1.0)), clamp(alpha, 0.0, 1.0)); -} diff --git a/shaders/prebuilt/crt.frag.spv b/shaders/prebuilt/crt.frag.spv Binary files differdeleted file mode 100644 index f0e14627..00000000 --- a/shaders/prebuilt/crt.frag.spv +++ /dev/null diff --git a/shaders/prebuilt/crt.vert.glsl b/shaders/prebuilt/crt.vert.glsl deleted file mode 100644 index 4e15fcdf..00000000 --- a/shaders/prebuilt/crt.vert.glsl +++ /dev/null @@ -1,9 +0,0 @@ -#version 450 - -// CRT post-process pass: one fullscreen triangle from gl_VertexIndex, no -// vertex buffer. The fragment shader derives uv from gl_FragCoord. - -void main() { - vec2 p = vec2(float((gl_VertexIndex << 1) & 2), float(gl_VertexIndex & 2)); - gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0); -} diff --git a/shaders/prebuilt/decor.frag.glsl b/shaders/prebuilt/decor.frag.glsl new file mode 100644 index 00000000..4c2bd6d8 --- /dev/null +++ b/shaders/prebuilt/decor.frag.glsl @@ -0,0 +1,24 @@ +#version 450 + +// Decor: a flat, hard-edged fill (a rule, a rail, a grip mark, a bar cursor) +// that ui.vert.glsl places like a cell, its track's transition included. Its +// colour rides in the cell's ground (a_bg) and its coverage in a_fg.r. The +// pipeline blends it as the overlay pipeline does (backgroundLayerBlend), so +// a fading rule shows through, and the result is that pipeline's exactly. +// Ink (a cursor) is drawn with the opacity uniform at 1. + +layout(std140, set = 3, binding = 0) uniform UiUniforms { + float background_opacity; +} u_ui; + +layout(location = 1) in vec3 v_fg; +layout(location = 2) in vec3 v_bg; +layout(location = 5) flat in vec4 v_clip; + +layout(location = 0) out vec4 o_col; + +void main() { + if (v_clip.z >= v_clip.x && (gl_FragCoord.x < v_clip.x || gl_FragCoord.x >= v_clip.z || + gl_FragCoord.y < v_clip.y || gl_FragCoord.y >= v_clip.w)) discard; + o_col = vec4(v_bg * clamp(u_ui.background_opacity, 0.0, 1.0), v_fg.r); +} diff --git a/shaders/prebuilt/decor.frag.spv b/shaders/prebuilt/decor.frag.spv Binary files differnew file mode 100644 index 00000000..7e162f5a --- /dev/null +++ b/shaders/prebuilt/decor.frag.spv diff --git a/shaders/prebuilt/post-crt.frag.glsl b/shaders/prebuilt/post-crt.frag.glsl new file mode 100644 index 00000000..c2cadfa2 --- /dev/null +++ b/shaders/prebuilt/post-crt.frag.glsl @@ -0,0 +1,157 @@ +#version 450 +// pardes's Shadertoy prefix (docs/render-pipeline.md §6), put before every +// post pass: a bundled one in shaders/post/ at build time, a user's file at +// run time. The uniform names, types and std140 order are ghostty 1.3.2's +// (src/renderer/shaders/shadertoy_prefix.glsl), so a shader written for +// ghostty runs here; only the bindings are SDL GPU's (a fragment shader's +// textures in set 2, its uniform blocks in set 3). Y is down everywhere, as +// on ghostty's Metal renderer: fragCoord, iChannel0's uv and the cursor +// rectangles share one top-left space, and iCurrentCursor is (left x, +// BOTTOM-edge y, width, height) in framebuffer pixels. + +layout(set = 3, binding = 0, std140) uniform Globals { + uniform vec3 iResolution; + uniform float iTime; + uniform float iTimeDelta; + uniform float iFrameRate; + uniform int iFrame; + uniform float iChannelTime[4]; + uniform vec3 iChannelResolution[4]; + uniform vec4 iMouse; + uniform vec4 iDate; + uniform float iSampleRate; + uniform vec4 iCurrentCursor; + uniform vec4 iPreviousCursor; + uniform vec4 iCurrentCursorColor; + uniform vec4 iPreviousCursorColor; + uniform int iCurrentCursorStyle; + uniform int iPreviousCursorStyle; + uniform int iCursorVisible; + uniform float iTimeCursorChange; + uniform float iTimeFocus; + uniform int iFocus; + uniform vec3 iPalette[256]; + uniform vec3 iBackgroundColor; + uniform vec3 iForegroundColor; + uniform vec3 iCursorColor; + uniform vec3 iCursorText; + uniform vec3 iSelectionForegroundColor; + uniform vec3 iSelectionBackgroundColor; +}; + +// pardes's own: pardesOpaque is 1 when the window is opaque, so a pass +// cannot punch holes in it through its alpha; pardesLevel is a bundled +// pass's strength, 1 to 3 (`Crt 3`), and 0 for a user's file. +layout(set = 3, binding = 1, std140) uniform PardesPost { + float pardesOpaque; + float pardesLevel; +}; + +// A bundled pass's constant at levels 1, 2 and 3. +float pardesByLevel(float one, float two, float three) { + return pardesLevel < 1.5 ? one : (pardesLevel < 2.5 ? two : three); +} + +#define CURSORSTYLE_BLOCK 0 +#define CURSORSTYLE_BLOCK_HOLLOW 1 +#define CURSORSTYLE_BAR 2 +#define CURSORSTYLE_UNDERLINE 3 +#define CURSORSTYLE_LOCK 4 + +layout(set = 2, binding = 0) uniform sampler2D iChannel0; + +layout(location = 0) out vec4 _fragColor; + +#define texture2D texture + +void mainImage(out vec4 fragColor, in vec2 fragCoord); +void main() { + mainImage(_fragColor, gl_FragCoord.xy); + if (pardesOpaque > 0.5) _fragColor.a = 1.0; +} + +// The shader's own lines count from 1, so glslc's errors name them. +#line 1 +// Crt: a slot-mask tube's light, with nothing that moves a pixel. There is +// no barrel: every click lands where it is drawn, rails and grips at the +// window's edges included. What is left is light: a beam profile for the +// scanlines, an aperture mask, a soft bloom of the brightest ink, a faint +// vignette and the hum of a live tube. Everything is worked out in linear +// light and dithered back into 8 bits, so the vignette never bands. It is a +// Shadertoy file: pardes puts its prefix before it (shaders/post/prefix.glsl). + +const float TAU = 6.28318530718; +// Level 3 glows wider and from dimmer ink. +float bloomRadiusPx() { return pardesByLevel(1.75, 1.75, 3.0); } +float bloomThreshold() { return pardesByLevel(0.6, 0.6, 0.3); } // linear-light channel peak +const float BLOOM_SOFTNESS = 0.25; +const float SCAN_PERIOD_PX = 3.0; +const float MASK_PERIOD_PX = 3.0; +const float HUM_HZ = 0.11; + +// Each strength at levels 1, 2 and 3 (`Crt 1`..`Crt 3`): 2 is the default, +// 3 as strong as the old barrel CRT looked. +float chromaPx() { return pardesByLevel(0.2, 0.35, 2.2); } // red and blue apart, at the corners +float bloomStrength() { return pardesByLevel(0.03, 0.05, 0.3); } +float scanStrength() { return pardesByLevel(0.035, 0.07, 0.42); } +float maskStrength() { return pardesByLevel(0.01, 0.018, 0.12); } +float vignetteStrength() { return pardesByLevel(0.06, 0.12, 0.42); } // at the far corners only +float humStrength() { return pardesByLevel(0.002, 0.004, 0.012); } +float exposure() { return pardesByLevel(1.008, 1.015, 1.1); } + +vec3 toLinear(vec3 c) { + return mix(pow((c + 0.055) / 1.055, vec3(2.4)), c / 12.92, lessThanEqual(c, vec3(0.04045))); +} + +vec3 toSrgb(vec3 c) { + c = max(c, vec3(0.0)); + return mix(1.055 * pow(c, vec3(1.0 / 2.4)) - 0.055, c * 12.92, lessThanEqual(c, vec3(0.0031308))); +} + +vec3 scene(vec2 uv) { + return toLinear(texture(iChannel0, uv).rgb); +} + +vec3 brightPass(vec2 uv) { + vec3 c = scene(uv); + float peak = max(c.r, max(c.g, c.b)); + return c * smoothstep(bloomThreshold(), bloomThreshold() + BLOOM_SOFTNESS, peak); +} + +// Interleaved gradient noise: a dither with no visible pattern. +float ign(vec2 p) { + return fract(52.9829189 * fract(dot(p, vec2(0.06711056, 0.00583715)))); +} + +void mainImage(out vec4 fragColor, in vec2 fragCoord) { + vec2 size = iResolution.xy; + vec2 texel = 1.0 / size; + vec2 uv = fragCoord / size; + vec2 cc = uv * 2.0 - 1.0; + float r2 = dot(cc, cc); + + // The beam converges least at the corners: red and blue drift apart + // there, by a third of a pixel. + vec2 chroma = cc * (chromaPx() * r2 * 0.5) * texel; + vec3 col = vec3(scene(uv + chroma).r, scene(uv).g, scene(uv - chroma).b); + + vec2 b = texel * bloomRadiusPx(); + vec3 bloom = brightPass(uv + vec2(b.x, 0.0)) + brightPass(uv - vec2(b.x, 0.0)) + + brightPass(uv + vec2(0.0, b.y)) + brightPass(uv - vec2(0.0, b.y)); + col += bloom * (0.25 * bloomStrength()); + + // A beam is brightest on its line and falls off between lines; the + // mask is three phosphor stripes a triad. Both average to one, so the + // theme keeps its brightness. + float line = 0.5 + 0.5 * cos(fragCoord.y * TAU / SCAN_PERIOD_PX); + col *= 1.0 - scanStrength() * (line * line - 0.375) / 0.625; + col *= 1.0 + maskStrength() * cos(fragCoord.x * TAU / MASK_PERIOD_PX + vec3(0.0, TAU / 3.0, 2.0 * TAU / 3.0)); + + float vignette = 1.0 - vignetteStrength() * pow(clamp(r2 * 0.5, 0.0, 1.0), 1.6); + float hum = 1.0 + humStrength() * sin((uv.y * 1.35 - iTime * HUM_HZ) * TAU); + col *= vignette * hum * exposure(); + + vec3 srgb = toSrgb(col); + srgb += (ign(fragCoord + float(iFrame % 64) * vec2(5.588238, 5.588238)) - 0.5) / 255.0; + fragColor = vec4(clamp(srgb, 0.0, 1.0), texture(iChannel0, uv).a); +} diff --git a/shaders/prebuilt/post-crt.frag.spv b/shaders/prebuilt/post-crt.frag.spv Binary files differnew file mode 100644 index 00000000..6599abd9 --- /dev/null +++ b/shaders/prebuilt/post-crt.frag.spv diff --git a/shaders/prebuilt/post.vert.glsl b/shaders/prebuilt/post.vert.glsl new file mode 100644 index 00000000..86739a65 --- /dev/null +++ b/shaders/prebuilt/post.vert.glsl @@ -0,0 +1,10 @@ +#version 450 + +// A post pass (docs/render-pipeline.md §6): one fullscreen triangle from +// gl_VertexIndex, no vertex buffer. The Shadertoy fragment shader works from +// gl_FragCoord, y down, as its fragCoord. + +void main() { + vec2 p = vec2(float((gl_VertexIndex << 1) & 2), float(gl_VertexIndex & 2)); + gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0); +} diff --git a/shaders/prebuilt/crt.vert.spv b/shaders/prebuilt/post.vert.spv Binary files differindex 8a75ebb3..8a75ebb3 100644 --- a/shaders/prebuilt/crt.vert.spv +++ b/shaders/prebuilt/post.vert.spv diff --git a/shaders/prebuilt/ui.frag.glsl b/shaders/prebuilt/ui.frag.glsl index 3c366602..0b099db3 100644 --- a/shaders/prebuilt/ui.frag.glsl +++ b/shaders/prebuilt/ui.frag.glsl @@ -17,6 +17,7 @@ layout(location = 1) in vec3 v_fg; layout(location = 2) in vec3 v_bg; layout(location = 3) in vec2 v_cell_uv; layout(location = 4) flat in uvec4 v_effect; +layout(location = 5) flat in vec4 v_clip; layout(location = 0) out vec4 o_col; @@ -31,6 +32,8 @@ float cellNoise(uint serial, uint col, uint row) { } void main() { + if (v_clip.z >= v_clip.x && (gl_FragCoord.x < v_clip.x || gl_FragCoord.x >= v_clip.z || + gl_FragCoord.y < v_clip.y || gl_FragCoord.y >= v_clip.w)) discard; float a = texture(u_atlas, v_uv).r; bool oldLayer = (v_effect.x & 0x80000000u) != 0u; // A block cursor is foreground chrome even though its fill occupies the diff --git a/shaders/prebuilt/ui.frag.spv b/shaders/prebuilt/ui.frag.spv Binary files differindex 120438e7..033c10ab 100644 --- a/shaders/prebuilt/ui.frag.spv +++ b/shaders/prebuilt/ui.frag.spv diff --git a/shaders/prebuilt/ui.vert.glsl b/shaders/prebuilt/ui.vert.glsl index d23b609c..c1779add 100644 --- a/shaders/prebuilt/ui.vert.glsl +++ b/shaders/prebuilt/ui.vert.glsl @@ -19,12 +19,17 @@ layout(location = 5) in vec4 a_present_rect; // the id is what is left below them; integer transport preserves the exact // cross-backend hash. layout(location = 6) in uvec4 a_effect; +// A clip rectangle in target pixels (x0, y0, x1, y1): the fragment shader +// drops what lies outside it. x1 < x0 is none. A vertical transition clips +// its pane's instances to the box the pane is growing into. +layout(location = 7) in vec4 a_clip; layout(location = 0) out vec2 v_uv; layout(location = 1) out vec3 v_fg; layout(location = 2) out vec3 v_bg; layout(location = 3) out vec2 v_cell_uv; layout(location = 4) flat out uvec4 v_effect; +layout(location = 5) flat out vec4 v_clip; void main() { vec2 pos; @@ -70,5 +75,6 @@ void main() { v_fg = a_fg; v_bg = a_bg; v_effect = a_effect; + v_clip = a_clip; gl_Position = vec4(pos, 0.0, 1.0); } diff --git a/shaders/prebuilt/ui.vert.spv b/shaders/prebuilt/ui.vert.spv Binary files differindex 659049dd..619a9690 100644 --- a/shaders/prebuilt/ui.vert.spv +++ b/shaders/prebuilt/ui.vert.spv diff --git a/shaders/ui.frag.glsl b/shaders/ui.frag.glsl index 3c366602..0b099db3 100644 --- a/shaders/ui.frag.glsl +++ b/shaders/ui.frag.glsl @@ -17,6 +17,7 @@ layout(location = 1) in vec3 v_fg; layout(location = 2) in vec3 v_bg; layout(location = 3) in vec2 v_cell_uv; layout(location = 4) flat in uvec4 v_effect; +layout(location = 5) flat in vec4 v_clip; layout(location = 0) out vec4 o_col; @@ -31,6 +32,8 @@ float cellNoise(uint serial, uint col, uint row) { } void main() { + if (v_clip.z >= v_clip.x && (gl_FragCoord.x < v_clip.x || gl_FragCoord.x >= v_clip.z || + gl_FragCoord.y < v_clip.y || gl_FragCoord.y >= v_clip.w)) discard; float a = texture(u_atlas, v_uv).r; bool oldLayer = (v_effect.x & 0x80000000u) != 0u; // A block cursor is foreground chrome even though its fill occupies the diff --git a/shaders/ui.vert.glsl b/shaders/ui.vert.glsl index d23b609c..c1779add 100644 --- a/shaders/ui.vert.glsl +++ b/shaders/ui.vert.glsl @@ -19,12 +19,17 @@ layout(location = 5) in vec4 a_present_rect; // the id is what is left below them; integer transport preserves the exact // cross-backend hash. layout(location = 6) in uvec4 a_effect; +// A clip rectangle in target pixels (x0, y0, x1, y1): the fragment shader +// drops what lies outside it. x1 < x0 is none. A vertical transition clips +// its pane's instances to the box the pane is growing into. +layout(location = 7) in vec4 a_clip; layout(location = 0) out vec2 v_uv; layout(location = 1) out vec3 v_fg; layout(location = 2) out vec3 v_bg; layout(location = 3) out vec2 v_cell_uv; layout(location = 4) flat out uvec4 v_effect; +layout(location = 5) flat out vec4 v_clip; void main() { vec2 pos; @@ -70,5 +75,6 @@ void main() { v_fg = a_fg; v_bg = a_bg; v_effect = a_effect; + v_clip = a_clip; gl_Position = vec4(pos, 0.0, 1.0); } diff --git a/src/File.zig b/src/File.zig index 2c4f0aec..b8368482 100644 --- a/src/File.zig +++ b/src/File.zig @@ -6,6 +6,7 @@ const vaxis = @import("vaxis"); const pardes = @import("pardes.zig"); const config = @import("config.zig"); const Pardes = pardes.Pardes; +const Surface = pardes.Surface; const modal = @import("modal.zig"); const filesystem = @import("fs.zig"); const syntax = @import("syntax.zig"); @@ -1137,8 +1138,7 @@ fn fillBody(dst: ?[]u8, pane: *Pane, f: *State, width: usize, record_wrap: bool) return written; } -pub fn drawGutter(p: *Pardes, pane: *Pane, r: pardes.Rect, tx: u16, tw: u16, body_h: u16, active: bool) void { - const s = &p.surface; +pub fn drawGutter(p: *Pardes, s: *Surface, pane: *Pane, r: pardes.Rect, tx: u16, tw: u16, body_h: u16, active: bool) void { const prefix_width = gutterWidth(pane); const goff = pane.scroll(); const gcur = Terminal.gridCursor(pane); @@ -1189,11 +1189,10 @@ fn synStyle(p: *Pardes, sy: syntax.Syn) ?SynStyle { /// syntax colors: recolor each content cell from its tree-sitter style byte; /// content starts after the lineno gutter -pub fn recolorSyntax(p: *Pardes, pane: *Pane, f: *State, r: pardes.Rect, tx: u16, tw: u16, body_h: u16) void { +pub fn recolorSyntax(p: *Pardes, s: *Surface, pane: *Pane, f: *State, r: pardes.Rect, tx: u16, tw: u16, body_h: u16) void { const highlights = if (f.mini) |mini| mini.colors else f.highlights; const highlight_start = if (f.mini != null) 0 else f.highlight_start; if (highlights.len == 0 and f.output == null) return; - const s = &p.surface; const prefix_width = gutterWidth(pane); const tz_recolor = tracy.zone(@src(), "synRecolor"); defer tz_recolor.end(); @@ -1268,6 +1267,7 @@ pub fn recolorSyntax(p: *Pardes, pane: *Pane, f: *State, r: pardes.Rect, tx: u16 pub fn drawWrapMarkers( p: *Pardes, + s: *Surface, pane: *const Pane, r: pardes.Rect, tx: u16, @@ -1281,7 +1281,7 @@ pub fn drawWrapMarkers( var row: u16 = 0; while (row + 1 < pane.wrap_n and row + 1 < body_h) : (row += 1) { if (pane.wrap_line[row + 1] != pane.wrap_line[row]) continue; - p.surface.set(tx + tw - 1, body_y + row, config.wrap_marker, .{ + s.set(tx + tw - 1, body_y + row, config.wrap_marker, .{ .fg = .{ .rgb = marker_fg }, .bg = pane_bg, }); @@ -1290,6 +1290,7 @@ pub fn drawWrapMarkers( pub fn paintWordSelection( p: *Pardes, + s: *Surface, pane: *Pane, r: pardes.Rect, row: i32, @@ -1314,7 +1315,7 @@ pub fn paintWordSelection( const c1 = @as(i32, prefix_width) + displayEndOffset(pane, row, here.at, hi - 1); var col = @max(@as(i32, prefix_width), c0); while (col <= c1 and col < @as(i32, tw)) : (col += 1) { - const cell = p.surface.at(tx + @as(u16, @intCast(col)), body_y + @as(u16, @intCast(vr))); + const cell = s.at(tx + @as(u16, @intCast(col)), body_y + @as(u16, @intCast(vr))); cell.default = false; cell.style.bg = .{ .rgb = bg }; } diff --git a/src/Layer.zig b/src/Layer.zig new file mode 100644 index 00000000..a9827304 --- /dev/null +++ b/src/Layer.zig @@ -0,0 +1,201 @@ +//! A band of cells a pixel shell draws over the grid at its own pitch: a +//! pane's, a column's or the workspace's tag rows, a notice chip, or a file +//! body whose compact tree-sitter context rows outnumber its grid rows. The +//! grid under it holds a copy of what fits there (draw.zig joins them), so a +//! terminal client, which has only the grid, loses nothing but the pitch. +//! +//! Its viewport is in grid cells, so compact text never moves a hit target. +//! A tag's rows are each one grid row, their glyphs at the tagline's size; a +//! body's first `context_rows` rows are stacked at the tagline's height, the +//! rest at the body's. `rows == 0` is no layer. +const std = @import("std"); +const pardes = @import("pardes.zig"); +const config = @import("config.zig"); +const limits = @import("memory.zig").limits; + +const Layer = @This(); + +/// `notice` is a pane's transient line -- a builtin's name, a pending leader +/// chord -- carried as a tagline-shaped band so it gets the tagline's height, +/// small-font metrics, band offset and border instead of being a body-grid row +/// wearing a tagline font. +pub const Kind = enum(u8) { workspace, column, pane, notice, body }; + +pub const Metrics = struct { + body_w: u16 = 1, + body_h: u16 = 1, + tagline_w: u16 = 1, + tagline_h: u16 = 1, +}; + +/// A point on a tag, notice or header layer: which row of it and which +/// column at the tagline's pitch. +pub const TagHit = struct { + kind: Kind, + id: u16, + serial: u32, + col: u16, + /// Which row of a taller tag. + line: u16 = 0, + pixel_x: f32, + pixel_y: f32, + metrics: Metrics, +}; + +kind: Kind = .body, +/// The pane slot, or the column, it belongs to. +id: u16 = 0, +serial: u32 = 0, +viewport: pardes.Rect = .{ .x = 0, .y = 0, .w = 0, .h = 0 }, +cols: u16 = 0, +rows: u16 = 0, +/// A body's compact rows, from its top. +context_rows: u16 = 0, +context_separators: std.bit_set.StaticBitSet(limits.wrap_rows) = .initEmpty(), +/// `rows * cols`, row after row. +cells: []pardes.Cell = &.{}, +cursor: ?struct { x: u16, y: u16, bar: bool = false } = null, +/// A band's fill, where its cells run out. +bg: [3]u8 = .{ 0, 0, 0 }, +/// Vertical offset in rows (negative: above its viewport), for a band +/// that is moving into place. A pixel shell draws it offset and clipped +/// to the rows below the viewport's top; the grid has no such thing. +slide: f32 = 0, +/// How present a notice band is (1 = fully) while it fades up or +/// dissolves. `bg` and the cells are already blended by it; a pixel +/// shell uses it for what it draws around the band, like its rule. +fade: f32 = 1, + +/// Tag columns a viewport this wide holds at the tagline's pitch. +pub fn capacity(layer: *const Layer, metrics: Metrics) u16 { + return @intCast(@min(std.math.maxInt(u16), @max(1, @as(u32, layer.viewport.w) * @max(1, metrics.body_w) / @max(1, metrics.tagline_w)))); +} + +pub fn setContextLines(layer: *Layer, lines: []const i32) void { + layer.context_separators = .initEmpty(); + const count = @min(lines.len, layer.context_rows); + var index: usize = 0; + while (index + 1 < count and index < limits.wrap_rows) : (index += 1) { + if (lines[index + 1] != lines[index] +| 1) layer.context_separators.set(index); + } +} + +pub fn hasContextBorderAfter(layer: *const Layer, index: usize) bool { + if (index >= layer.context_rows or index >= limits.wrap_rows) return false; + return index + 1 == layer.context_rows or layer.context_separators.isSet(index); +} + +/// Pixel top of row `index`: a body's compact rows stacked at the tagline's +/// height, every other row a grid row. +pub fn rowTop(layer: *const Layer, index: u16, body_h: f32, tagline_h: f32) f32 { + const body = @max(1, body_h); + const tag = std.math.clamp(tagline_h, 1, body); + return @as(f32, @floatFromInt(layer.viewport.y)) * body + + @as(f32, @floatFromInt(@min(index, layer.context_rows))) * tag + + @as(f32, @floatFromInt(index -| layer.context_rows)) * body; +} + +pub fn rowHeight(layer: *const Layer, index: u16, body_h: f32, tagline_h: f32) f32 { + return if (index < layer.context_rows) std.math.clamp(tagline_h, 1, @max(1, body_h)) else @max(1, body_h); +} + +const Point = struct { index: u16, col: u16, metrics: Metrics }; + +/// The row and column a window pixel lands on, each row at its own pitch: +/// a tag's at the tagline's width, a body's compact rows too. +fn pointAt(layer: *const Layer, x: f32, y: f32, body_w: f32, body_h: f32, tagline_w: f32, tagline_h: f32) ?Point { + if (layer.rows == 0 or !std.math.isFinite(x) or !std.math.isFinite(y)) return null; + // A band's hit is refused outright on metrics no host could have; a + // body's has always been floored to a pixel instead, and both refuse + // what is no number or past a u16 (a host's floats: web's exports). + for ([_]f32{ body_w, body_h, tagline_w, tagline_h }) |metric| { + if (!std.math.isFinite(metric) or metric > std.math.maxInt(u16)) return null; + if (layer.kind != .body and metric < 1) return null; + } + const bw = @max(1, body_w); + const bh = @max(1, body_h); + const tw = std.math.clamp(tagline_w, 1, bw); + const th = std.math.clamp(tagline_h, 1, bh); + const dx = x - @as(f32, @floatFromInt(layer.viewport.x)) * bw; + const dy = y - @as(f32, @floatFromInt(layer.viewport.y)) * bh; + if (dx < 0 or dy < 0 or dx >= @as(f32, @floatFromInt(layer.viewport.w)) * bw or dy >= @as(f32, @floatFromInt(layer.viewport.h)) * bh) return null; + const headers = @as(f32, @floatFromInt(layer.context_rows)) * th; + const index: u16 = @intFromFloat(if (dy < headers) @floor(dy / th) else @as(f32, @floatFromInt(layer.context_rows)) + @floor((dy - headers) / bh)); + if (index >= layer.rows) return null; + const pitch = if (layer.kind != .body or index < layer.context_rows) tw else bw; + return .{ + .index = index, + .col = @intFromFloat(@min(@as(f32, @floatFromInt(layer.cols -| 1)), @floor(dx / pitch))), + .metrics = .{ .body_w = @intFromFloat(bw), .body_h = @intFromFloat(bh), .tagline_w = @intFromFloat(tw), .tagline_h = @intFromFloat(th) }, + }; +} + +/// A body layer's pixel as the body cell under it (grid columns, from the +/// pane's text edge). +pub fn bodyHit(layer: *const Layer, x: f32, y: f32, body_w: f32, body_h: f32, tagline_w: f32, tagline_h: f32) ?pardes.Mouse.BodyHit { + if (layer.kind != .body) return null; + const point = layer.pointAt(x, y, body_w, body_h, tagline_w, tagline_h) orelse return null; + return .{ .serial = layer.serial, .row = point.index, .col = point.col + config.GUTTER, .pixel_x = x, .pixel_y = y, .metrics = point.metrics }; +} + +/// A band's pixel as the tag cell under it. +pub fn tagHit(layer: *const Layer, x: f32, y: f32, body_w: f32, body_h: f32, tagline_w: f32, tagline_h: f32) ?TagHit { + if (layer.kind == .body) return null; + const point = layer.pointAt(x, y, body_w, body_h, tagline_w, tagline_h) orelse return null; + return .{ .kind = layer.kind, .id = layer.id, .serial = layer.serial, .line = point.index, .col = point.col, .pixel_x = x, .pixel_y = y, .metrics = point.metrics }; +} + +test "compact body layer rows fill reclaimed height and invert exact boundaries" { + const layer: Layer = .{ .serial = 7, .viewport = .{ .x = 4, .y = 3, .w = 40, .h = 10 }, .cols = 40, .rows = 15, .context_rows = 5 }; + try std.testing.expectEqual(@as(f32, 120), layer.rowTop(5, 20, 12)); + try std.testing.expectEqual(@as(f32, 240), layer.rowTop(11, 20, 12)); + try std.testing.expectEqual(@as(f32, 12), layer.rowHeight(4, 20, 12)); + try std.testing.expectEqual(@as(f32, 20), layer.rowHeight(5, 20, 12)); + for (0..12) |index| { + const r: u16 = @intCast(index); + const y = layer.rowTop(r, 20, 12) + layer.rowHeight(r, 20, 12) / 2; + const width: f32 = if (r < 5) 6 else 10; + const hit = layer.bodyHit(40 + 3.5 * width, y, 10, 20, 6, 12).?; + try std.testing.expectEqual(r, hit.row); + try std.testing.expectEqual(@as(u16, 3 + config.GUTTER), hit.col); + } + try std.testing.expectEqual(@as(u16, 4), layer.bodyHit(45, 119.99, 10, 20, 6, 12).?.row); + try std.testing.expectEqual(@as(u16, 5), layer.bodyHit(45, 120, 10, 20, 6, 12).?.row); + try std.testing.expectEqual(@as(u16, 11), layer.bodyHit(45, 259.99, 10, 20, 6, 12).?.row); + try std.testing.expect(layer.bodyHit(45, 260, 10, 20, 6, 12) == null); + try std.testing.expect(layer.bodyHit(39.99, 80, 10, 20, 6, 12) == null); + try std.testing.expect(layer.bodyHit(std.math.nan(f32), 80, 10, 20, 6, 12) == null); +} + +test "compact context borders separate source gaps and preserve multiline headers" { + var layer: Layer = .{ .context_rows = 6 }; + layer.setContextLines(&.{ 3, 4, 8, 9, 10, 17 }); + const expected = [_]bool{ false, true, false, false, true, true, false }; + for (expected, 0..) |border, index| try std.testing.expectEqual(border, layer.hasContextBorderAfter(index)); + layer.context_rows = 2; + layer.setContextLines(&.{ 9, 10 }); + try std.testing.expect(!layer.hasContextBorderAfter(0)); + try std.testing.expect(layer.hasContextBorderAfter(1)); + try std.testing.expect(!layer.hasContextBorderAfter(4)); + try std.testing.expect(!layer.context_separators.isSet(4)); +} + +test "tag text capacity uses its own pitch and excludes the physical grip" { + const layer: Layer = .{ .kind = .pane, .id = 2, .serial = 7, .viewport = .{ .x = 12, .y = 4, .w = 38, .h = 1 }, .cols = 90, .rows = 1 }; + try std.testing.expectEqual(@as(u16, 63), layer.capacity(.{ .body_w = 10, .tagline_w = 6 })); + try std.testing.expect(layer.tagHit(119.99, 85, 10, 20, 6, 12) == null); + try std.testing.expectEqual(@as(u16, 0), layer.tagHit(120, 85, 10, 20, 6, 12).?.col); + try std.testing.expectEqual(@as(u16, 50), layer.tagHit(423, 85, 10, 20, 6, 12).?.col); + try std.testing.expect(layer.tagHit(500, 85, 10, 20, 6, 12) == null); + try std.testing.expect(layer.tagHit(120, 85, std.math.nan(f32), 20, 6, 12) == null); + try std.testing.expect(layer.tagHit(120, 85, 10, 20, 0, 12) == null); +} + +test "a taller tag's rows are grid rows, each hit on its own line" { + const layer: Layer = .{ .kind = .pane, .id = 2, .serial = 7, .viewport = .{ .x = 12, .y = 4, .w = 38, .h = 3 }, .cols = 90, .rows = 3 }; + try std.testing.expectEqual(@as(u16, 0), layer.tagHit(120, 80, 10, 20, 6, 12).?.line); + try std.testing.expectEqual(@as(u16, 1), layer.tagHit(120, 100, 10, 20, 6, 12).?.line); + try std.testing.expectEqual(@as(u16, 2), layer.tagHit(120, 139.99, 10, 20, 6, 12).?.line); + try std.testing.expect(layer.tagHit(120, 140, 10, 20, 6, 12) == null); + try std.testing.expect(layer.bodyHit(120, 100, 10, 20, 6, 12) == null); +} diff --git a/src/Messages.zig b/src/Messages.zig index f8178629..ea62041f 100644 --- a/src/Messages.zig +++ b/src/Messages.zig @@ -5,6 +5,7 @@ const pardes = @import("pardes.zig"); const memory = @import("memory.zig"); const std = @import("std"); const layout = @import("layout.zig"); +const animation = @import("animation.zig"); const ctlfs = @import("ninep/tree.zig"); const panes = @import("panes.zig"); const CellStyle = @import("surface.zig").CellStyle; @@ -302,11 +303,35 @@ fn advanceLine(p: *const Pardes, life: *Pane.MessageLife) bool { return false; } -/// Is any message line moving (and so owed ticks)? -pub fn messagesAnimating(pane: *const Pane) bool { - if (pane.msg_len > 0 and pane.msg_life.phase != .shown) return true; - for (pane.msg_older[0..pane.msg_older_len]) |line| if (line.life.phase != .shown) return true; - return false; +/// Move every lingering message line `frames` along its linger at once: +/// how `advance` jumps a wait instead of stepping it frame by frame. +pub fn holdMessages(p: *Pardes, frames: u64) void { + const n: u16 = @intCast(@min(frames, std.math.maxInt(u16))); + for (p.panes) |slot| { + const pane = slot orelse continue; + if (pane.msg_len > 0 and pane.msg_life.phase == .lingering) pane.msg_life.frame +|= n; + for (pane.msg_older[0..pane.msg_older_len]) |*line| { + if (line.life.phase == .lingering) line.life.frame +|= n; + } + } +} + +/// Frames until this pane's message lines next change: 1 while a line +/// falls in or dissolves, the rest of its linger while one only waits, null +/// when every line just shows. +pub fn messageWake(p: *const Pardes, pane: *const Pane) ?u64 { + var soonest: ?u64 = null; + const linger = messageFrames(p.settings.message_linger_ms); + for (0..@as(usize, pane.msg_older_len) + 1) |i| { + const life = if (i < pane.msg_older_len) pane.msg_older[i].life else if (pane.msg_len > 0) pane.msg_life else continue; + const frames: u64 = switch (life.phase) { + .shown => continue, + .entering, .leaving => 1, + .lingering => @max(1, linger -| life.frame), + }; + soonest = if (soonest) |n| @min(n, frames) else frames; + } + return soonest; } /// How present a message is (1 = fully) and how far above its row it @@ -316,7 +341,7 @@ pub const MessageMotion = struct { alpha: f32 = 1, slide: f32 = 0 }; /// Animation frames a message timing lasts; at least one. pub fn messageFrames(ms: u16) u16 { - return @intCast(@max(1, (@as(u32, ms) + layout.Animation.frame_ms - 1) / layout.Animation.frame_ms)); + return @intCast(@max(1, (@as(u32, ms) + animation.frame_ms - 1) / animation.frame_ms)); } pub fn messageMotion(p: *const Pardes, life: Pane.MessageLife) MessageMotion { @@ -416,23 +441,51 @@ pub fn messageLog(m: *const Messages, i: usize) ?*const LoggedMessage { return &m.log[(first + i) % limits.message_log]; } +/// `<operation>: <the error in words>`: FileNotFound reads "file not found". pub fn reportError(p: *Pardes, id: usize, operation: []const u8, err: anyerror) void { var buf: [256]u8 = undefined; - const text = std.fmt.bufPrint(&buf, "{s}: {s}", .{ operation, @errorName(err) }) catch operation; - reportFailure(p, id, text); + var w = std.Io.Writer.fixed(&buf); + w.print("{s}: ", .{operation}) catch {}; + for (@errorName(err), 0..) |c, i| { + if (std.ascii.isUpper(c) and i > 0) w.writeByte(' ') catch break; + w.writeByte(std.ascii.toLower(c)) catch break; + } + reportFailure(p, id, w.buffered()); +} + +/// The longest start of `text` that fits `max` bytes and ends between +/// words (or, with no space to cut at, between characters). +pub fn clip(text: []const u8, max: usize) []const u8 { + if (text.len <= max) return text; + if (std.mem.lastIndexOfScalar(u8, text[0 .. max + 1], ' ')) |sp| return text[0..sp]; + var n = max; + while (n > 0 and text[n] & 0xC0 == 0x80) n -= 1; + return text[0..n]; } /// reportError with the words already chosen. pub fn reportFailure(p: *Pardes, id: usize, text: []const u8) void { - // A builtin a ctl write runs: its first error is also the write's. + // A builtin a ctl write runs: its first error is also the write's, cut + // between words. if (p.fs.no_prompt and p.fs.failure_len == 0) { - const n = @min(text.len, p.fs.failure.len); - @memcpy(p.fs.failure[0..n], text[0..n]); + const kept = if (text.len > p.fs.failure.len) clip(text, p.fs.failure.len - 3) else text; + @memcpy(p.fs.failure[0..kept.len], kept); + var n = kept.len; + if (kept.len < text.len) { + @memcpy(p.fs.failure[n..][0..3], "..."); + n += 3; + } p.fs.failure_len = @intCast(n); } setMessage(p, id, text); } +test "an error reads as words and a failure is cut between them" { + try std.testing.expectEqualStrings("go", clip("go haskell", 4)); + try std.testing.expectEqualStrings("go haskell", clip("go haskell", 10)); + try std.testing.expectEqualStrings("\u{e9}", clip("\u{e9}\u{e9}", 3)); +} + /// The one place that decides which transient lines a pane is showing and /// in what order. Everything downstream reads the answer: the body layer /// so it does not paint under them, and the paint pass so it can stack @@ -534,14 +587,14 @@ test "Msg writes the transient row by hand, bare or with text, and input ends it // ...on the pane that ran it, and nowhere else try std.testing.expectEqualStrings("", row(p, 0)); - // Bare, it reports ITSELF through reportError — the `<operation>: <Error>` + // Bare, it reports ITSELF through reportError — the `<operation>: <error in words>` // every failed save and refused Look arrives in. try std.testing.expect(p.executeBuiltinLine(2, "Msg")); - try std.testing.expectEqualStrings("Msg: NoMessage", row(p, 2)); + try std.testing.expectEqualStrings("Msg: no message", row(p, 2)); // Input starts its exit: it lingers, dissolves, and is gone. p.update(.{ .key = .{ .cp = Key.escape } }); - try std.testing.expectEqualStrings("Msg: NoMessage", row(p, 2)); + try std.testing.expectEqualStrings("Msg: no message", row(p, 2)); for (0..200) |_| p.update(.tick); try std.testing.expectEqualStrings("", row(p, 2)); // ...and with neither linger nor animation it is as old as your last input. @@ -764,6 +817,11 @@ test "a builtin announces itself on the message row, and Verbose silences it" { // for its announcement, which is correct and not what this is testing. try std.testing.expect(p.executeBuiltinLine(p.active, "Wrap")); try std.testing.expectEqualStrings("Wrap", pane.msg[0..pane.msg_len]); + // A value it does not take is said, in place of the announcement. + const wrapped = p.settings.wrap; + try std.testing.expect(p.executeBuiltinLine(p.active, "Wrap maybe")); + try std.testing.expectEqualStrings("Wrap: takes on or off", pane.msg[0..pane.msg_len]); + try std.testing.expectEqual(wrapped, p.settings.wrap); // The notice list is what the paint pass reads, so the announcement has to // reach it, not just the buffer. @@ -778,7 +836,7 @@ test "a builtin announces itself on the message row, and Verbose silences it" { _ = try p.render(frame.allocator()); const r = p.rects[p.active]; const band = for (p.surface.tagLayers()) |*layer| { - if (layer.cols != 0 and layer.kind == .notice) break layer; + if (layer.rows != 0 and layer.kind == .notice) break layer; } else return error.NoNoticeBand; try std.testing.expectEqual(@as(u16, 1), band.viewport.h); try std.testing.expectEqual(if (p.settings.tag_bottom) r.y else r.y + BOX_H, band.viewport.y); @@ -825,7 +883,7 @@ test "notices stack over the body's top rows without moving them" { var seen: usize = 0; for (p.surface.tagLayers()) |*layer| { - if (layer.cols == 0 or layer.kind != .notice) continue; + if (layer.rows == 0 or layer.kind != .notice) continue; try std.testing.expectEqual(@as(u16, 1), layer.viewport.h); // Sized to its own message, right up against the pane's right edge -- // not the width of the pane. @@ -845,5 +903,50 @@ test "notices stack over the body's top rows without moving them" { _ = frame.reset(.retain_capacity); _ = try p.render(frame.allocator()); for (p.surface.tagLayers()) |*layer| - try std.testing.expect(layer.cols == 0 or layer.kind != .notice); + try std.testing.expect(layer.rows == 0 or layer.kind != .notice); +} + +test "an idle core wants no wake and a lingering message sleeps to its linger's end" { + const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 80, .rows = 24 }); + defer p.deinit(); + while (p.nextEffect()) |_| {} + const frame = animation.frame_ns; + p.advance(1_000_000); + try std.testing.expectEqual(@as(?u64, null), p.nextWake()); + const pane = p.panes[p.active].?; + try std.testing.expect(p.executeBuiltinLine(p.active, "Msg hello")); + // Falling in: a frame from now. + try std.testing.expectEqual(@as(?u64, p.stepped_ns + frame), p.nextWake()); + const fall = messageFrames(p.settings.message_fall_ms); + p.advance(p.stepped_ns + fall * frame); + try std.testing.expectEqual(Pane.MessagePhase.shown, pane.msg_life.phase); + try std.testing.expectEqual(@as(?u64, null), p.nextWake()); + // A key starts the 800 ms linger: the core sleeps to its end, not a + // frame at a time, and the frames it jumps draw nothing. + p.update(.{ .key = .{ .cp = 'x' } }); + try std.testing.expectEqual(Pane.MessagePhase.lingering, pane.msg_life.phase); + const linger = messageFrames(p.settings.message_linger_ms); + const due = p.stepped_ns + linger * frame; + try std.testing.expectEqual(@as(?u64, due), p.nextWake()); + p.needs_frame = false; + p.advance(due - frame); + try std.testing.expectEqual(@as(?u64, due), p.nextWake()); + try std.testing.expectEqual(Pane.MessagePhase.lingering, pane.msg_life.phase); + p.advance(due); + try std.testing.expectEqual(Pane.MessagePhase.leaving, pane.msg_life.phase); + try std.testing.expectEqual(@as(?u64, due + frame), p.nextWake()); + p.advance(due + 10 * std.time.ns_per_s); + try std.testing.expectEqual(@as(usize, 0), pane.msg_len); + try std.testing.expectEqual(@as(?u64, null), p.nextWake()); + + // A long linger ends when it says, jumped in one step, not stretched by + // the cap on catching up with moving frames. + try std.testing.expect(p.executeBuiltinLine(p.active, "MessageLinger 5000")); + try std.testing.expect(p.executeBuiltinLine(p.active, "Msg again")); + p.advance(p.stepped_ns + fall * frame); + p.update(.{ .key = .{ .cp = 'x' } }); + const long_due = p.stepped_ns + messageFrames(5000) * frame; + try std.testing.expectEqual(@as(?u64, long_due), p.nextWake()); + p.advance(long_due); + try std.testing.expectEqual(Pane.MessagePhase.leaving, pane.msg_life.phase); } diff --git a/src/Presentation.zig b/src/Presentation.zig new file mode 100644 index 00000000..3b5bb3e0 --- /dev/null +++ b/src/Presentation.zig @@ -0,0 +1,735 @@ +//! Panel presentation: which pane geometry the shells have been shown, the +//! transition tracks that move it there, and the frozen previous grid the +//! character and dissolve effects read. Only acknowledged draws advance the +//! shown geometry; committed and submitted may be ahead of it. +const std = @import("std"); +const pardes = @import("pardes.zig"); +const layout = @import("layout.zig"); +const animation = @import("animation.zig"); +const Pardes = pardes.Pardes; +const MAX_PANES = pardes.MAX_PANES; +const Box = animation.Box; +const Track = animation.Track; +const Phase = animation.Phase; +const Transition = animation.Transition; +const CellArea = animation.CellArea; +const CharSource = animation.CharSource; +const charSource = animation.charSource; +const dissolveRevealed = animation.dissolveRevealed; +const openingBox = animation.openingBox; +const closingBox = animation.closingBox; +const paintOrder = animation.paintOrder; +const panelBox = layout.panelBox; + +const Presentation = @This(); + +pub const Snapshot = struct { serial: u32, box: Box }; + +// Only acknowledged draws advance shown geometry; committed and submitted may be ahead. +committed: [MAX_PANES]?Snapshot = @splat(null), +initialized: bool = false, +enabled: bool = false, +snap_once: bool = false, +tracks: [MAX_PANES]?Track = @splat(null), +closing: [MAX_PANES]Track = undefined, +closing_len: usize = 0, +submitted: [MAX_PANES]?Snapshot = @splat(null), +submitted_ready: bool = false, +shown: [MAX_PANES]?Snapshot = @splat(null), +shown_tracks: [MAX_PANES]?Track = @splat(null), +shown_closing: [MAX_PANES]Track = undefined, +shown_closing_len: usize = 0, +acknowledged: bool = false, +pending: bool = false, +previous_cells: []pardes.Cell = &.{}, +previous_body_layers: [MAX_PANES]pardes.Layer = @splat(.{}), +previous_tag_layers: [pardes.MAX_TAG_LAYERS]pardes.Layer = @splat(.{}), +previous_regions: [pardes.MAX_REGIONS]pardes.Region = undefined, +previous_nregions: u16 = 0, +previous_cols: u16 = 0, +previous_rows: u16 = 0, +previous_valid: bool = false, +previous_layout: [MAX_PANES]?Snapshot = @splat(null), +diffs: []pardes.PanelCellDiff = &.{}, +diff_state: enum { none, requested, ready } = .none, + +pub const CellPosition = struct { col: u16, row: u16 }; + +pub fn deinit(self: *Presentation, gpa: std.mem.Allocator) void { + if (self.previous_cells.len > 0) gpa.free(self.previous_cells); + for (&self.previous_body_layers) |*layer| gpa.free(layer.cells); + for (&self.previous_tag_layers) |*layer| gpa.free(layer.cells); + if (self.diffs.len > 0) gpa.free(self.diffs); +} + +pub fn sync(self: *Presentation, p: *Pardes) void { + const initializing = !self.initialized or !self.enabled; + if (initializing or self.snap_once) { + const had_layout = self.initialized; + self.committed = @splat(null); + self.tracks = @splat(null); + self.closing_len = 0; + self.diff_state = .none; + if (initializing) { + self.shown_tracks = @splat(null); + self.shown_closing_len = 0; + } + for (p.panes, 0..) |slot, id| { + const pane = slot orelse continue; + self.committed[id] = .{ .serial = pane.serial, .box = panelBox(p.rects[id]) }; + } + self.initialized = true; + self.snap_once = false; + if (had_layout and self.acknowledged) + self.pending = true; + return; + } + + const effect = p.settings.panel_transition; + if (effect.needsPreviousGrid() and self.diff_state != .none) { + var second_change = false; + for (p.panes, self.committed, 0..) |slot, snapshot, id| { + const pane = slot orelse { + second_change = second_change or snapshot != null; + continue; + }; + const target = panelBox(p.rects[id]); + second_change = second_change or snapshot == null or + snapshot.?.serial != pane.serial or !snapshot.?.box.eql(target); + } + if (second_change) { + p.abandonPanelAnimations(); + self.committed = @splat(null); + for (p.panes, 0..) |slot, id| { + const pane = slot orelse continue; + self.committed[id] = .{ .serial = pane.serial, .box = panelBox(p.rects[id]) }; + } + return; + } + } + var changed = false; + var animated_change = false; + for (p.panes, 0..) |slot, id| { + const pane = slot orelse { + if (self.committed[id]) |old| { + changed = true; + if (effect.lifecycleOnly()) { + if (self.appendClosing(.{ + .serial = old.serial, + .pane = @intCast(id), + .phase = .closing, + .effect = effect, + .from = old.box, + .to = closingBox(effect, old.box), + })) animated_change = true; + } + } + self.committed[id] = null; + self.tracks[id] = null; + // Never let pixels from a dead pane address a reused slot. + self.shown_tracks[id] = null; + continue; + }; + const target = panelBox(p.rects[id]); + const previous = self.committed[id]; + self.committed[id] = .{ .serial = pane.serial, .box = target }; + + if (effect == .off) { + changed = changed or previous == null or previous.?.serial != pane.serial or + !previous.?.box.eql(target); + self.tracks[id] = null; + continue; + } + if (previous) |old| { + if (old.serial == pane.serial and old.box.eql(target)) continue; + const same_lifetime = old.serial == pane.serial; + const prior = if (self.tracks[id]) |track| + if (track.serial == pane.serial and track.active()) track else null + else + null; + if (effect.lifecycleOnly() and same_lifetime) { + if (prior) |active| if (active.phase == .opening) { + var next = active; + next.from = openingBox(effect, target, p.screen_w); + next.to = target; + self.tracks[id] = next; + changed = true; + animated_change = true; + continue; + }; + self.tracks[id] = null; + changed = true; + continue; + } + if (effect.lifecycleOnly() and !same_lifetime) { + _ = self.appendClosing(.{ + .serial = old.serial, + .pane = @intCast(id), + .phase = .closing, + .effect = effect, + .from = old.box, + .to = closingBox(effect, old.box), + }); + } + const shown = if (self.shown[id]) |snapshot| + if (snapshot.serial == pane.serial) snapshot.box else null + else + null; + const from = if (!same_lifetime) + openingBox(effect, target, p.screen_w) + else if (shown) |box| + box + else if (self.acknowledged and prior != null) + prior.?.from + else + old.box; + const next: Track = .{ + .serial = pane.serial, + .pane = @intCast(id), + .phase = if (!same_lifetime or + (prior != null and prior.?.phase == .opening)) .opening else .moving, + .effect = effect, + .from = from, + .to = target, + }; + self.tracks[id] = next; + changed = true; + animated_change = true; + } else { + const next: Track = .{ + .serial = pane.serial, + .pane = @intCast(id), + .phase = .opening, + .effect = effect, + .from = openingBox(effect, target, p.screen_w), + .to = target, + }; + self.tracks[id] = next; + changed = true; + animated_change = true; + } + } + if (animated_change and effect.needsPreviousGrid()) { + self.diff_state = .requested; + } + if (changed and self.acknowledged) self.pending = true; +} + +fn appendClosing(self: *Presentation, track: Track) bool { + std.debug.assert(track.phase == .closing); + const baseline = self.previous_layout[track.pane] orelse return false; + if (!self.previous_valid or baseline.serial != track.serial or + !baseline.box.eql(track.from)) return false; + if (self.closing_len == self.closing.len) { + std.mem.copyForwards( + Track, + self.closing[0 .. self.closing.len - 1], + self.closing[1..], + ); + self.closing_len -= 1; + } + self.closing[self.closing_len] = track; + self.closing_len += 1; + return true; +} + +pub fn advance(self: *Presentation) void { + for (&self.tracks) |*slot| { + const track = if (slot.*) |*track| track else continue; + track.frame +|= 1; + if (!track.active()) slot.* = null; + } + var out: usize = 0; + for (self.closing[0..self.closing_len]) |value| { + var track = value; + track.frame +|= 1; + if (!track.active()) continue; + self.closing[out] = track; + out += 1; + } + self.closing_len = out; +} + +pub fn acknowledge(self: *Presentation, p: *Pardes, tracks: []const Track) void { + var presented: [MAX_PANES]?Track = @splat(null); + var presented_closing: [MAX_PANES]Track = undefined; + var nclosing: usize = 0; + var presented_layout: [MAX_PANES]?Snapshot = if (self.submitted_ready) + self.submitted + else + @splat(null); + if (!self.submitted_ready) for (p.panes, 0..) |slot, id| { + const pane = slot orelse continue; + presented_layout[id] = .{ .serial = pane.serial, .box = panelBox(p.rects[id]) }; + }; + for (&presented_layout, 0..) |*snapshot, id| if (snapshot.*) |saved| { + const pane = p.panes[id] orelse { + snapshot.* = null; + continue; + }; + if (pane.serial != saved.serial) snapshot.* = null; + }; + for (tracks) |track| { + if (track.phase == .closing) { + const current = for (self.closing[0..self.closing_len]) |candidate| { + if (candidate.serial == track.serial and candidate.pane == track.pane and + candidate.effect == track.effect) break true; + } else false; + if (!current or !track.active() or nclosing == presented_closing.len) continue; + presented_closing[nclosing] = track; + nclosing += 1; + continue; + } + const id: usize = track.pane; + if (id >= p.panes.len or !track.active()) continue; + const pane = p.panes[id] orelse continue; + if (pane.serial != track.serial) continue; + presented[id] = track; + presented_layout[id] = .{ .serial = track.serial, .box = track.visualBox() }; + } + self.shown_tracks = presented; + self.shown_closing = presented_closing; + self.shown_closing_len = nclosing; + self.shown = presented_layout; + self.acknowledged = true; + self.pending = false; + if (tracks.len == 0) { + self.tracks = @splat(null); + self.closing_len = 0; + self.diff_state = .none; + // The frozen grid exists for transitions alone: with them off, an + // idle frame copies nothing. + if (p.settings.panel_transition != .off) { + self.capturePrevious(p.gpa, &p.surface); + } else { + self.previous_valid = false; + self.previous_layout = @splat(null); + } + } +} + +pub fn capturePrevious(self: *Presentation, gpa: std.mem.Allocator, surface: *const pardes.Surface) void { + self.diff_state = .none; + const cells = surface.cells; + if (cells.len == 0) { + self.previous_valid = false; + self.previous_layout = @splat(null); + return; + } + if (self.previous_cells.len != cells.len) { + const next = gpa.alloc(pardes.Cell, cells.len) catch { + self.previous_valid = false; + self.previous_layout = @splat(null); + return; + }; + if (self.previous_cells.len > 0) gpa.free(self.previous_cells); + self.previous_cells = next; + } + for (&self.previous_body_layers, surface.bodyLayers()) |*old, *current| { + const count = if (current.rows > 0) current.cells.len else 0; + const storage = if (old.cells.len == count) old.cells else gpa.realloc(old.cells, count) catch { + self.previous_valid = false; + self.previous_layout = @splat(null); + return; + }; + if (count > 0) @memcpy(storage, current.cells); + old.* = current.*; + old.cells = storage; + } + for (&self.previous_tag_layers, surface.tagLayers()) |*old, *current| { + const count = if (current.rows > 0) current.cells.len else 0; + const storage = if (old.cells.len == count) old.cells else gpa.realloc(old.cells, count) catch { + self.previous_valid = false; + self.previous_layout = @splat(null); + return; + }; + if (count > 0) @memcpy(storage, current.cells); + old.* = current.*; + old.cells = storage; + } + @memcpy(self.previous_cells, cells); + @memcpy(self.previous_regions[0..surface.nregions], surface.regionList()); + self.previous_nregions = surface.nregions; + self.previous_cols = surface.cols; + self.previous_rows = surface.rows; + self.previous_valid = true; + self.previous_layout = if (self.submitted_ready) + self.submitted + else + @splat(null); +} + +pub fn cellDiff(self: *const Presentation, cols: u16, rows: u16, col: u16, row: u16) pardes.PanelCellDiff { + if (self.diff_state != .ready or col >= cols or row >= rows or + self.diffs.len != @as(usize, cols) * rows) return .unchanged; + return self.diffs[@as(usize, row) * cols + col]; +} + +pub const Point = struct { x: f32, y: f32 }; + +/// Coordinates stay fractional until the host resolves its body font grid. +pub fn pointerFractional(self: *const Presentation, cols: u16, rows: u16, x: f32, y: f32) ?Point { + if (self.pending or !std.math.isFinite(x) or !std.math.isFinite(y) or + x < 0 or y < 0 or x >= @as(f32, @floatFromInt(cols)) or y >= @as(f32, @floatFromInt(rows))) return null; + var closing = self.shown_closing_len; + while (closing > 0) { + closing -= 1; + const track = self.shown_closing[closing]; + if (track.active() and boxContainsPoint(track.contentBox(), x, y) and + boxContainsPoint(track.presented(), x, y)) return null; + } + for ([_]Phase{ .opening, .moving }) |phase| { + var index = self.shown_tracks.len; + while (index > 0) { + index -= 1; + const track = self.shown_tracks[index] orelse continue; + if (!track.active() or track.phase != phase) continue; + switch (track.effect) { + .slide, .zoom, .vertical => { + const target = track.contentBox(); + if (track.effect == .vertical and !boxContainsPoint(target, x, y)) continue; + const shown = track.presented(); + if (!boxContainsPoint(shown, x, y)) { + if (track.effect == .vertical) return null; + continue; + } + return .{ + .x = target.x + (x - shown.x) / shown.w * target.w, + .y = target.y + (y - shown.y) / shown.h * target.h, + }; + }, + else => { + if (!boxContainsPoint(track.to, x, y)) continue; + _ = self.pointer(cols, rows, @intFromFloat(@floor(x)), @intFromFloat(@floor(y))) orelse return null; + return .{ .x = x, .y = y }; + }, + } + } + } + _ = self.pointer(cols, rows, @intFromFloat(@floor(x)), @intFromFloat(@floor(y))) orelse return null; + return .{ .x = x, .y = y }; +} + +fn boxContainsPoint(box: Box, x: f32, y: f32) bool { + return box.w > 0 and box.h > 0 and x >= box.x and y >= box.y and x < box.x + box.w and y < box.y + box.h; +} + +pub fn pointer(self: *const Presentation, cols: u16, rows: u16, col: u16, row: u16) ?CellPosition { + if (self.pending) return null; + var closing = self.shown_closing_len; + while (closing > 0) { + closing -= 1; + const track = self.shown_closing[closing]; + if (!track.active()) continue; + if (boxContainsCell(track.contentBox(), col, row) and + boxContainsCell(track.presented(), col, row)) return null; + } + const phases = [_]Phase{ .opening, .moving }; + for (phases) |phase| { + // Backends paint pane slots forward within a phase. Probe them in + // reverse so overlapping transition quads address the top pixel. + var index = self.shown_tracks.len; + while (index > 0) { + index -= 1; + const track = self.shown_tracks[index] orelse continue; + if (!track.active() or track.phase != phase) continue; + switch (track.effect) { + .slide, .zoom => { + const shown = track.presented(); + if (shown.w <= 0 or shown.h <= 0 or !boxContainsCell(shown, col, row)) continue; + const x = @as(f32, @floatFromInt(col)) + 0.5; + const y = @as(f32, @floatFromInt(row)) + 0.5; + const u = std.math.clamp((x - shown.x) / shown.w, 0, 0.999_999); + const v = std.math.clamp((y - shown.y) / shown.h, 0, 0.999_999); + const logical_x: i32 = @intFromFloat(@floor(track.to.x + u * track.to.w)); + const logical_y: i32 = @intFromFloat(@floor(track.to.y + v * track.to.h)); + return .{ + .col = @intCast(std.math.clamp(logical_x, 0, @as(i32, cols -| 1))), + .row = @intCast(std.math.clamp(logical_y, 0, @as(i32, rows -| 1))), + }; + }, + .vertical => { + const clip = track.contentBox(); + if (!boxContainsCell(clip, col, row)) continue; + const shown = track.presented(); + if (shown.w <= 0 or shown.h <= 0 or !boxContainsCell(shown, col, row)) + return null; + const x = @as(f32, @floatFromInt(col)) + 0.5; + const y = @as(f32, @floatFromInt(row)) + 0.5; + const u = std.math.clamp((x - shown.x) / shown.w, 0, 0.999_999); + const v = std.math.clamp((y - shown.y) / shown.h, 0, 0.999_999); + return .{ + .col = @intFromFloat(@floor(clip.x + u * clip.w)), + .row = @intFromFloat(@floor(clip.y + v * clip.h)), + }; + }, + .dissolve, .ascii => { + if (!boxContainsCell(track.to, col, row)) continue; + const cell_diff = self.cellDiff(cols, rows, col, row); + if (!cell_diff.changed()) + return .{ .col = col, .row = row }; + const relative_col: u16 = @intFromFloat(@floor( + @as(f32, @floatFromInt(col)) + 0.5 - track.to.x, + )); + const relative_row: u16 = @intFromFloat(@floor( + @as(f32, @floatFromInt(row)) + 0.5 - track.to.y, + )); + const visible = switch (track.effect) { + .dissolve => dissolveRevealed( + track.serial, + relative_col, + relative_row, + track.amount(), + ), + .ascii => switch (cell_diff) { + .ascii => |diff| diff.complete(track.frame), + .unchanged, .visual => true, + }, + else => unreachable, + }; + return if (visible) .{ .col = col, .row = row } else null; + }, + .edges, .fall, .wave, .curtain, .scramble, .typewriter => { + if (!boxContainsCell(track.to, col, row)) continue; + const area = CellArea.of(track.to); + const settled = std.meta.eql( + charSource( + track, + col -| area.x0, + row -| area.y0, + area, + ), + CharSource.settled, + ); + return if (settled) .{ .col = col, .row = row } else null; + }, + .off => {}, + } + } + } + for (self.shown_tracks) |maybe| { + const track = maybe orelse continue; + if (!track.active() or (track.effect != .slide and track.effect != .zoom and + track.effect != .vertical)) continue; + if (boxContainsCell(track.to, col, row)) return null; + } + return .{ .col = col, .row = row }; +} + +fn boxContainsCell(box: Box, col: u16, row: u16) bool { + const x = @as(f32, @floatFromInt(col)) + 0.5; + const y = @as(f32, @floatFromInt(row)) + 0.5; + return x >= box.x and x < box.x + box.w and y >= box.y and y < box.y + box.h; +} + +pub fn cancel(self: *Presentation) void { + self.tracks = @splat(null); + self.closing_len = 0; + self.shown_tracks = @splat(null); + self.shown_closing_len = 0; + self.diff_state = .none; + self.pending = self.acknowledged; +} + +fn prepareDiff(self: *Presentation, gpa: std.mem.Allocator, surface: *const pardes.Surface) !bool { + const count = surface.cells.len; + if (!self.previous_valid or + self.previous_cols != surface.cols or + self.previous_rows != surface.rows or + self.previous_cells.len != count) return false; + if (self.diffs.len != count) { + const next = try gpa.alloc(pardes.PanelCellDiff, count); + if (self.diffs.len > 0) gpa.free(self.diffs); + self.diffs = next; + } + for (self.diffs, self.previous_cells, surface.cells) |*diff, *old, *new| + diff.* = pardes.PanelCellDiff.between(old, new); + for (&self.tracks) |*slot| { + const track = if (slot.*) |*track| track else continue; + if (track.effect != .ascii) continue; + var longest: u16 = 1; + var row: u16 = 0; + while (row < surface.rows) : (row += 1) { + var col: u16 = 0; + while (col < surface.cols) : (col += 1) { + if (!boxContainsCell(track.to, col, row)) continue; + const index = @as(usize, row) * surface.cols + col; + switch (self.diffs[index]) { + .ascii => |diff| longest = @max(longest, diff.frameCount()), + .unchanged, .visual => {}, + } + } + } + track.frame_count = @max(track.frame_count, longest); + } + self.diff_state = .ready; + return true; +} + +pub fn submit(self: *Presentation, p: *Pardes, s: *pardes.Surface) !void { + self.submitted = @splat(null); + for (p.panes, 0..) |slot, id| { + const pane = slot orelse continue; + self.submitted[id] = .{ + .serial = pane.serial, + .box = panelBox(p.rects[id]), + }; + } + self.submitted_ready = true; + if (self.diff_state != .none and !try self.prepareDiff(p.gpa, s)) { + for (&self.tracks) |*slot| { + const track = slot.* orelse continue; + if (track.effect.needsPreviousGrid()) slot.* = null; + } + self.closing_len = 0; + self.diff_state = .none; + } + if (self.diff_state == .ready) { + s.previous_cells = self.previous_cells; + s.previous_body_layers = &self.previous_body_layers; + s.previous_tag_layers = &self.previous_tag_layers; + s.previous_regions = self.previous_regions[0..self.previous_nregions]; + s.cell_diffs = self.diffs; + } + s.npanel_tracks = paintOrder( + &self.tracks, + self.closing[0..self.closing_len], + &s.panel_tracks, + ); +} + +pub fn animating(self: *const Presentation) bool { + for (self.tracks) |track| if (track != null and track.?.active()) return true; + for (self.closing[0..self.closing_len]) |track| + if (track.active()) return true; + return false; +} + +test "presentation cache allocation failures retain ownership and allow retry" { + var allocator: std.testing.FailingAllocator = .init(std.testing.allocator, .{}); + const gpa = allocator.allocator(); + var state: Presentation = .{}; + defer state.deinit(gpa); + var cells: [3]pardes.Cell = @splat(.{}); + cells[0].default = false; + cells[0].text[0] = 'a'; + var surface: pardes.Surface = .{ .cols = 2, .rows = 1, .cells = cells[0..2] }; + state.submitted[0] = .{ .serial = 7, .box = .{ .x = 0, .y = 0, .w = 2, .h = 1 } }; + state.submitted_ready = true; + state.capturePrevious(gpa, &surface); + try std.testing.expect(state.previous_valid); + try std.testing.expectEqual(@as(u32, 7), state.previous_layout[0].?.serial); + const previous = state.previous_cells.ptr; + const allocated = allocator.allocations; + allocator.fail_index = allocator.alloc_index; + state.capturePrevious(gpa, &surface); + try std.testing.expect(state.previous_valid); + try std.testing.expectEqual(allocated, allocator.allocations); + try std.testing.expect(!allocator.has_induced_failure); + + surface.cols = 3; + surface.cells = &cells; + state.submitted[0].?.box.w = 3; + state.diff_state = .ready; + state.capturePrevious(gpa, &surface); + try std.testing.expect(allocator.has_induced_failure); + try std.testing.expect(!state.previous_valid); + try std.testing.expectEqual(previous, state.previous_cells.ptr); + try std.testing.expectEqual(@as(usize, 2), state.previous_cells.len); + try std.testing.expectEqual(@as(u8, 'a'), state.previous_cells[0].text[0]); + try std.testing.expect(state.previous_layout[0] == null); + try std.testing.expectEqual(.none, state.diff_state); + + allocator.fail_index = std.math.maxInt(usize); + state.capturePrevious(gpa, &surface); + try std.testing.expect(state.previous_valid); + try std.testing.expectEqual(@as(usize, 3), state.previous_cells.len); + try std.testing.expectEqual(@as(f32, 3), state.previous_layout[0].?.box.w); + state.diff_state = .requested; + allocator.fail_index = allocator.alloc_index; + try std.testing.expectError(error.OutOfMemory, state.prepareDiff(gpa, &surface)); + try std.testing.expectEqual(.requested, state.diff_state); + try std.testing.expectEqual(@as(usize, 0), state.diffs.len); + allocator.fail_index = std.math.maxInt(usize); + try std.testing.expect(try state.prepareDiff(gpa, &surface)); + try std.testing.expectEqual(.ready, state.diff_state); + try std.testing.expectEqual(@as(usize, 3), state.diffs.len); + for (state.diffs) |diff| try std.testing.expectEqual(.unchanged, diff); +} + +test "presentation submission failure preserves shown geometry until retry is acknowledged" { + var allocator: std.testing.FailingAllocator = .init(std.testing.allocator, .{}); + const p = try Pardes.init(allocator.allocator(), .{ .tty_only = true, .cols = 40, .rows = 12 }); + defer p.deinit(); + var frame: std.heap.ArenaAllocator = .init(std.testing.allocator); + defer frame.deinit(); + // The frozen grid is kept only while a transition is chosen. + p.settings.panel_transition = .slide; + _ = try p.render(frame.allocator()); + p.acknowledgePanelPresentation(&.{}); + const shown = p.presentation.shown; + const previous = p.presentation.previous_cells.ptr; + p.presentation.diff_state = .requested; + p.presentation.pending = true; + allocator.fail_index = allocator.alloc_index; + try std.testing.expectError(error.OutOfMemory, p.presentation.submit(p, &p.surface)); + try std.testing.expectEqualDeep(shown, p.presentation.shown); + try std.testing.expectEqual(previous, p.presentation.previous_cells.ptr); + try std.testing.expectEqual(.requested, p.presentation.diff_state); + try std.testing.expect(p.presentation.pending); + try std.testing.expect(p.presentation.pointer(p.screen_w, p.screen_h, 5, 3) == null); + + allocator.fail_index = std.math.maxInt(usize); + try p.presentation.submit(p, &p.surface); + try std.testing.expectEqualDeep(shown, p.presentation.shown); + try std.testing.expect(p.presentation.pending); + p.acknowledgePanelPresentation(&.{}); + try std.testing.expect(!p.presentation.pending); + try std.testing.expectEqual(CellPosition{ .col = 5, .row = 3 }, p.presentation.pointer(p.screen_w, p.screen_h, 5, 3).?); +} + +test "fractional panel inverse preserves compact header rows through slide and zoom" { + const layer: pardes.Layer = .{ .serial = 7, .viewport = .{ .x = 4, .y = 3, .w = 30, .h = 10 }, .cols = 30, .rows = 15, .context_rows = 4 }; + for ([_]Transition{ .slide, .zoom, .vertical }) |effect| { + var presentation: Presentation = .{}; + const track: Track = .{ .serial = 7, .effect = effect, .frame = 4, .frame_count = 10, .from = .{ .x = 2, .y = 2, .w = 20, .h = 8 }, .to = .{ .x = 3, .y = 2, .w = 32, .h = 12 } }; + presentation.shown_tracks[0] = track; + const shown = track.presented(); + for (0..4) |index| { + const row: u16 = @intCast(index); + const source_x: f32 = 5.3; + const source_y = (layer.rowTop(row, 20, 10) + 5) / 20; + const x = shown.x + (source_x - track.to.x) / track.to.w * shown.w; + const y = shown.y + (source_y - track.to.y) / track.to.h * shown.h; + const point = presentation.pointerFractional(80, 30, x, y).?; + try std.testing.expectApproxEqAbs(source_x, point.x, 0.0001); + try std.testing.expectApproxEqAbs(source_y, point.y, 0.0001); + const body_hit = layer.bodyHit(point.x * 10, point.y * 20, 10, 20, 8, 10).?; + try std.testing.expectEqual(row, body_hit.row); + } + } +} + +test "presentation snapshots own compact body and tag rows across later edits" { + var state: Presentation = .{}; + defer state.deinit(std.testing.allocator); + var cells: [1]pardes.Cell = .{.{}}; + var body: [2]pardes.Cell = .{ .{}, .{} }; + body[0].text[0] = 'A'; + var surface: pardes.Surface = .{ .cols = 1, .rows = 1, .cells = &cells }; + surface.body_layers[0] = .{ .serial = 9, .cols = 1, .rows = 2, .context_rows = 1, .cells = &body }; + var tag: [1]pardes.Cell = .{.{}}; + tag[0].text[0] = 'T'; + surface.tag_layers[0] = .{ .kind = .pane, .serial = 9, .cols = 1, .rows = 1, .cells = &tag }; + state.capturePrevious(std.testing.allocator, &surface); + try std.testing.expect(state.previous_valid); + tag[0].text[0] = 'U'; + try std.testing.expectEqual(@as(u8, 'T'), state.previous_tag_layers[0].cells[0].text[0]); + body[0].text[0] = 'B'; + surface.body_layers[0].context_rows = 0; + try std.testing.expectEqual(@as(u8, 'A'), state.previous_body_layers[0].cells[0].text[0]); + try std.testing.expectEqual(@as(u16, 1), state.previous_body_layers[0].context_rows); + state.capturePrevious(std.testing.allocator, &surface); + try std.testing.expectEqual(@as(u8, 'B'), state.previous_body_layers[0].cells[0].text[0]); + try std.testing.expectEqual(@as(u8, 'U'), state.previous_tag_layers[0].cells[0].text[0]); +} diff --git a/src/Terminal.zig b/src/Terminal.zig index ba156ada..91c23305 100644 --- a/src/Terminal.zig +++ b/src/Terminal.zig @@ -5,6 +5,7 @@ const std = @import("std"); const pardes = @import("pardes.zig"); const config = @import("config.zig"); const Pardes = pardes.Pardes; +const Surface = pardes.Surface; const modal = @import("modal.zig"); const tracy = @import("tracy.zig"); const dump = @import("dump.zig"); @@ -1763,11 +1764,10 @@ const Anchor = struct { } }; -pub fn recolorAnsi(p: *Pardes, pane: *Pane, r: pardes.Rect, tx: u16, tw: u16, body_h: u16, body: []const u8) void { +pub fn recolorAnsi(p: *Pardes, s: *Surface, pane: *Pane, r: pardes.Rect, tx: u16, tw: u16, body_h: u16, body: []const u8) void { // No emulator, no ANSI cells: the whole pass — and the 256-colour theme // projection behind it — is compiled out. if (comptime !enabled) return; - const s = &p.surface; if (pane.terminal == null) return; const body_y = p.bodyTop(pane, r); var filtered_storage: FilteredColors = undefined; diff --git a/src/Text.zig b/src/Text.zig index a44241ca..ab23bf8e 100644 --- a/src/Text.zig +++ b/src/Text.zig @@ -161,7 +161,8 @@ pub fn fromModalCursor(t: *Text, c: modal.Cursor) void { pub fn insertVerticalCursor(lines: []const []const u8, c: modal.Cursor, down: bool) modal.Cursor { if (lines.len == 0) return c; - const row = if (down) @min(c.row + 1, lines.len - 1) else c.row -| 1; + // A cursor past the lines (its text changed under it) moves from the last. + const row = if (down) @min(c.row + 1, lines.len - 1) else @min(c.row, lines.len) -| 1; const target = lines[row]; if (target.len == 0) return .{ .row = row, .col = 0 }; const source = if (c.row < lines.len) lines[c.row] else ""; diff --git a/src/animation.zig b/src/animation.zig new file mode 100644 index 00000000..948a6679 --- /dev/null +++ b/src/animation.zig @@ -0,0 +1,739 @@ +//! Animation curves and the panel transition records every shell reads: +//! easing presets, transition kinds and their tracks, the fractional boxes +//! they move through, the character effects' per-cell sources, and the +//! generic displayed-value Transition the chrome colours use. +const std = @import("std"); + +pub const ascii_max_movement_frames: u16 = 12; + +pub const Easing = enum(u8) { + linear, + smooth, + /// Quintic ease-in-out. It creeps at both ends and crosses the middle of + /// the distance fast, inside the same frame count a linear walk would use. + smoother, + in_cubic, + out_cubic, + out_back, +}; + +pub const Transition = enum(u8) { + // Numeric values are shared with the GUI shader ABI. + off = 0, + slide = 1, + zoom = 2, + dissolve = 3, + ascii = 4, + vertical = 5, + edges = 6, + fall = 7, + wave = 8, + curtain = 9, + scramble = 10, + typewriter = 11, + + pub fn easing(effect: Transition) Easing { + return switch (effect) { + .off, .dissolve, .wave => .smooth, + .slide, .vertical, .edges => .out_cubic, + .zoom => .out_back, + // Character walks and per-cell locks read best with a slow start, + // a fast middle, and a slow settle over their fixed frame count. + .ascii, .fall, .scramble => .smoother, + // A sweep and a typewriter are constant-rate by definition: easing + // their head would make the pass visibly hesitate mid-pane. + .curtain, .typewriter => .linear, + }; + } + + pub fn frames(effect: Transition) u16 { + return switch (effect) { + .off => 0, + .slide => 12, + .zoom => 14, + .dissolve => 10, + .ascii => ascii_max_movement_frames + 1, + .vertical => 12, + .edges, .curtain, .scramble => 12, + // Travelling motion needs a couple more samples than a lock or a + // rigid slide before it stops reading as a jump. + .fall, .wave, .typewriter => 14, + }; + } + + pub fn composedByCore(effect: Transition) bool { + return switch (effect) { + .ascii, .edges, .fall, .wave, .curtain, .scramble, .typewriter => true, + .off, .slide, .zoom, .dissolve, .vertical => false, + }; + } + + pub fn needsPreviousGrid(effect: Transition) bool { + return effect == .dissolve or effect == .vertical or effect.composedByCore(); + } + + pub fn lifecycleOnly(effect: Transition) bool { + return effect == .vertical; + } +}; + +pub const Phase = enum(u8) { + opening = 0, + moving = 1, + /// Presentation-only content whose pane lifetime has already ended. + /// It is never a valid input target. + closing = 2, +}; + +pub const Box = extern struct { + x: f32 = 0, + y: f32 = 0, + w: f32 = 0, + h: f32 = 0, + + pub fn eql(a: Box, b: Box) bool { + return a.x == b.x and a.y == b.y and a.w == b.w and a.h == b.h; + } + + // A cell belongs to a fractional box when its center lies inside. + pub fn contains(box: Box, col: u16, row: u16) bool { + const x: f32 = @floatFromInt(col); + const y: f32 = @floatFromInt(row); + return x >= box.x and x < box.x + box.w and y >= box.y and y < box.y + box.h; + } +}; + +// Drawing and hit testing share this moving/opening/closing order. +pub fn paintOrder(live: []const ?Track, closing: []const Track, out: []Track) usize { + var len: usize = 0; + for ([_]Phase{ .moving, .opening }) |phase| for (live) |maybe| { + const track = maybe orelse continue; + if (!track.active() or track.phase != phase) continue; + if (len == out.len) return len; + out[len] = track; + len += 1; + }; + for (closing) |track| { + if (!track.active()) continue; + if (len == out.len) return len; + out[len] = track; + len += 1; + } + return len; +} + +/// One POD record is enough for every backend. `from` and `to` are logical +/// cell boxes; frontends convert them to pixels only at their render edge. +pub const Track = extern struct { + serial: u32 = 0, + pane: u8 = 0, + phase: Phase = .moving, + effect: Transition = .off, + _padding: u8 = 0, + frame: u16 = 0, + frame_count: u16 = 0, + from: Box = .{}, + to: Box = .{}, + + pub fn active(track: Track) bool { + return track.effect != .off and track.frame < track.frames(); + } + + pub fn frames(track: Track) u16 { + return if (track.frame_count != 0) track.frame_count else track.effect.frames(); + } + + pub fn amount(track: Track) f32 { + // Opening rises quickly and settles; closing reverses that motion and + // accelerates down out of the fixed clip. + if (track.phase == .closing and track.effect == .vertical) + return progressEased(.in_cubic, track.frames(), track.frame); + return progressEased(track.effect.easing(), track.frames(), track.frame); + } + + pub fn presented(track: Track) Box { + return lerpBox(track.from, track.to, track.amount()); + } + + pub fn visualBox(track: Track) Box { + return switch (track.effect) { + .slide, .zoom, .vertical => track.presented(), + .off, .dissolve => track.to, + // Every character effect stays inside the pane's final rectangle. + .ascii, .edges, .fall, .wave, .curtain, .scramble, .typewriter => track.to, + }; + } + + pub fn contentBox(track: Track) Box { + return if (track.phase == .closing) track.from else track.to; + } +}; + +pub fn openingBox(effect: Transition, target: Box, screen_width: u16) Box { + return switch (effect) { + .slide => blk: { + var from = target; + const middle = target.x + target.w * 0.5; + from.x = if (middle < @as(f32, @floatFromInt(screen_width)) * 0.5) + -target.w + else + @floatFromInt(screen_width); + break :blk from; + }, + .zoom => .{ + .x = target.x + target.w * 0.5, + .y = target.y + target.h * 0.5, + .w = 0, + .h = 0, + }, + .vertical => blk: { + var from = target; + from.y += target.h; + break :blk from; + }, + .off, .dissolve => target, + // Character effects own the glyphs inside a fixed rectangle, so their + // panel opens at exactly its final geometry. + .ascii, .edges, .fall, .wave, .curtain, .scramble, .typewriter => target, + }; +} + +pub fn closingBox(effect: Transition, source: Box) Box { + return switch (effect) { + .vertical => blk: { + var to = source; + to.y += source.h; + break :blk to; + }, + else => source, + }; +} + +pub fn sample(easing: Easing, raw: f32) f32 { + const t = std.math.clamp(raw, 0.0, 1.0); + return switch (easing) { + .linear => t, + .smooth => t * t * (3.0 - 2.0 * t), + .smoother => t * t * t * (t * (6.0 * t - 15.0) + 10.0), + .in_cubic => t * t * t, + .out_cubic => 1.0 - (1.0 - t) * (1.0 - t) * (1.0 - t), + // Robert Penner's ease-out-back polynomial. It intentionally travels + // a little past one before settling exactly on the endpoint. + .out_back => blk: { + const c1: f32 = 1.70158; + const c3 = c1 + 1.0; + const u = t - 1.0; + break :blk 1.0 + c3 * u * u * u + c1 * u * u; + }, + }; +} + +pub fn progress(effect: Transition, frame: u16) f32 { + return progressEased(effect.easing(), effect.frames(), frame); +} + +fn progressEased(easing: Easing, frames: u16, frame: u16) f32 { + if (frames <= 1 or frame >= frames - 1) return 1.0; + return sample(easing, @as(f32, @floatFromInt(frame)) / @as(f32, @floatFromInt(frames - 1))); +} + +pub fn lerpBox(from: Box, to: Box, t: f32) Box { + const u = @max(0.0, t); + return .{ + .x = from.x + (to.x - from.x) * u, + .y = from.y + (to.y - from.y) * u, + .w = @max(0.0, from.w + (to.w - from.w) * u), + .h = @max(0.0, from.h + (to.h - from.h) * u), + }; +} + +/// Stable cell noise shared by the TTY reveal and shader ports. Integer-only +/// hashing means resizing or repainting a frame does not make cells flicker. +pub fn cellNoise(serial: u32, col: u16, row: u16) f32 { + var x = serial ^ (@as(u32, col) *% 0x9e37_79b9) ^ (@as(u32, row) *% 0x85eb_ca6b); + x ^= x >> 16; + x *%= 0x7feb_352d; + x ^= x >> 15; + x *%= 0x846c_a68b; + x ^= x >> 16; + return @as(f32, @floatFromInt(x & 0xffff)) / 65535.0; +} + +/// Whether a changed dissolve cell has crossed from the frozen old grid to +/// the new one. Exact endpoints are part of the presentation contract. +pub fn dissolveRevealed(serial: u32, col: u16, row: u16, raw_progress: f32) bool { + const t = std.math.clamp(raw_progress, 0.0, 1.0); + if (t <= 0) return false; + if (t >= 1) return true; + return cellNoise(serial, col, row) < t; +} + +pub const CellArea = struct { + x0: u16 = 0, + y0: u16 = 0, + cols: u16 = 1, + rows: u16 = 1, + + pub fn of(box: Box) CellArea { + return .{ + .x0 = floorCell(box.x), + .y0 = floorCell(box.y), + .cols = ceilCell(box.w), + .rows = ceilCell(box.h), + }; + } +}; + +fn floorCell(value: f32) u16 { + return @intFromFloat(std.math.clamp(@floor(value), 0.0, @as(f32, std.math.maxInt(u16)))); +} + +fn ceilCell(value: f32) u16 { + return @intFromFloat(std.math.clamp(@ceil(value), 1.0, @as(f32, std.math.maxInt(u16)))); +} + +pub const CharSource = union(enum) { + /// Nothing has arrived here yet: keep the frozen old cell. + old, + at: Offset, + /// Paint this printable byte in the destination cell's own style, whatever + /// that cell holds — a caret marching over empty space is still a caret. + byte: u8, + churn: u8, + + pub const Offset = struct { cols: i32 = 0, rows: i32 = 0 }; + + pub const settled: CharSource = .{ .at = .{} }; +}; + +pub fn charSource(track: Track, col: u16, row: u16, area: CellArea) CharSource { + const t = track.amount(); + if (t >= 1.0) return .settled; + const w: f32 = @floatFromInt(area.cols); + const h: f32 = @floatFromInt(area.rows); + const c: f32 = @floatFromInt(col); + const r: f32 = @floatFromInt(row); + const remaining = 1.0 - t; + return switch (track.effect) { + .edges => blk: { + const travel = cellsOf(remaining * (w + 1.0)); + break :blk .{ .at = .{ .cols = if (row % 2 == 0) travel else -travel } }; + }, + // Columns rain down, each with its own stable head start, so the pane + // fills from the top and the last glyphs land at the bottom. + .fall => blk: { + const local = staggered(t, cellNoise(track.serial, col, 0) * 0.4); + if (local <= 0.0) break :blk .old; + break :blk .{ .at = .{ .rows = cellsOf((1.0 - local) * (h + 1.0)) } }; + }, + // A vertical ripple travels left to right and its amplitude decays, so + // the pane settles out of a wave instead of a fade. + .wave => .{ .at = .{ + .rows = cellsOf(remaining * @min(4.0, h) * @sin(c * 0.55 - t * 9.0)), + } }, + // A curtain of glyphs marches in from the right, column by column, left + // to right; each column still has a short slide of its own. + .curtain => blk: { + const lead = t * (w + 1.0) - c; + if (lead <= 0.0) break :blk .old; + break :blk .{ .at = .{ .cols = -cellsOf(@max(0.0, 3.0 - lead)) } }; + }, + // Every cell churns through printable ASCII and locks onto its final + // glyph at its own stable threshold: the pane resolves out of noise. + .scramble => blk: { + if (t >= cellNoise(track.serial, col, row) * 0.8) break :blk .settled; + const churn = cellNoise( + track.serial ^ (@as(u32, track.frame) *% 0x27d4_eb2f), + col, + row, + ); + break :blk .{ .churn = @intCast(33 + @min(93, @as(u32, @intFromFloat(churn * 94.0)))) }; + }, + // Reading-order reveal with a caret sitting on the write head. + .typewriter => blk: { + const head = t * w * h; + const index = r * w + c; + if (index + 1.0 <= head) break :blk .settled; + if (index <= head) break :blk .{ .byte = '_' }; + break :blk .old; + }, + // PanelAscii walks its own byte distance per cell, and the geometry + // effects never reach this path at all. + .off, .slide, .zoom, .dissolve, .vertical, .ascii => .settled, + }; +} + +fn cellsOf(distance: f32) i32 { + return @intFromFloat(@round(std.math.clamp(distance, -65535.0, 65535.0))); +} + +/// Remap track progress into one cell's own window. A stagger delays a glyph +/// without making the effect as a whole end after its last frame. +fn staggered(t: f32, delay: f32) f32 { + if (delay >= 1.0) return t; + return (t - delay) / (1.0 - delay); +} + +test "easing presets have exact endpoints and intended shapes" { + inline for (std.enums.values(Easing)) |easing| { + try std.testing.expectEqual(@as(f32, 0), sample(easing, 0)); + try std.testing.expectEqual(@as(f32, 1), sample(easing, 1)); + } + try std.testing.expectEqual(@as(f32, 0.5), sample(.linear, 0.5)); + try std.testing.expect(sample(.in_cubic, 0.5) < sample(.linear, 0.5)); + try std.testing.expect(sample(.out_cubic, 0.5) > sample(.linear, 0.5)); + try std.testing.expect(sample(.out_back, 0.8) > 1.0); + // Slow at both ends, fast through the middle, and symmetric about the + // halfway point: the same curve the integer byte walk reproduces. + try std.testing.expectEqual(@as(f32, 0.5), sample(.smoother, 0.5)); + try std.testing.expect(sample(.smoother, 0.15) < sample(.smooth, 0.15)); + try std.testing.expect(sample(.smoother, 0.85) > sample(.smooth, 0.85)); + try std.testing.expect(sample(.smoother, 0.6) - sample(.smoother, 0.4) > + sample(.linear, 0.6) - sample(.linear, 0.4)); +} + +test "transition progress completes exactly" { + inline for (std.enums.values(Transition)) |effect| { + try std.testing.expectEqual(@as(f32, 1), progress(effect, effect.frames())); + if (effect.frames() > 0) + try std.testing.expectEqual(@as(f32, 1), progress(effect, effect.frames() - 1)); + try std.testing.expectEqual(@as(f32, 1), progress(effect, std.math.maxInt(u16))); + } + try std.testing.expectEqual(@as(f32, 1), progress(.off, 0)); + + const shrinking = lerpBox(.{ .w = 100, .h = 40 }, .{}, sample(.out_back, 0.8)); + try std.testing.expectEqual(@as(f32, 0), shrinking.w); + try std.testing.expectEqual(@as(f32, 0), shrinking.h); + const opening = lerpBox(.{}, .{ .w = 100, .h = 40 }, sample(.out_back, 0.8)); + try std.testing.expect(opening.w > 100); + try std.testing.expect(opening.h > 40); +} + +test "character effects are core-composed and settle on the canonical glyph" { + const box: Box = .{ .x = 4, .y = 2, .w = 20, .h = 6 }; + const area: CellArea = .of(box); + try std.testing.expectEqual(@as(u16, 4), area.x0); + try std.testing.expectEqual(@as(u16, 2), area.y0); + try std.testing.expectEqual(@as(u16, 20), area.cols); + try std.testing.expectEqual(@as(u16, 6), area.rows); + + inline for (std.enums.values(Transition)) |effect| { + if (comptime !effect.composedByCore()) continue; + // Core composition needs the frozen old grid for every glyph which has + // not arrived, so no character effect may animate without it. + try std.testing.expect(effect.needsPreviousGrid()); + if (comptime effect == .ascii) continue; // owns its own per-cell byte walk + + const last: Track = .{ .effect = effect, .frame = effect.frames() - 1, .to = box }; + const first: Track = .{ .effect = effect, .frame = 0, .to = box }; + var moving = false; + var row: u16 = 0; + while (row < area.rows) : (row += 1) { + var col: u16 = 0; + while (col < area.cols) : (col += 1) { + // The last active sample is the exact canonical grid: no cell + // is displaced, churning, or still frozen. + try std.testing.expectEqual(CharSource.settled, charSource(last, col, row, area)); + if (!std.meta.eql(CharSource.settled, charSource(first, col, row, area))) + moving = true; + } + } + try std.testing.expect(moving); + } +} + +test "each character effect moves glyphs along its own axis" { + const box: Box = .{ .w = 30, .h = 8 }; + const area: CellArea = .of(box); + + // Rows alternate which screen edge they come from, and every glyph in a row + // travels as one rigid slide: one offset, no vertical component. + var edges: Track = .{ .effect = .edges, .frame = 2, .to = box }; + const even = charSource(edges, 5, 0, area).at; + const odd = charSource(edges, 5, 1, area).at; + try std.testing.expect(even.cols > 0); + try std.testing.expectEqual(-even.cols, odd.cols); + try std.testing.expectEqual(@as(i32, 0), even.rows); + try std.testing.expectEqual(even, charSource(edges, 17, 0, area).at); + edges.frame = 5; + try std.testing.expect(charSource(edges, 5, 0, area).at.cols < even.cols); + + // Falling columns are vertical only, staggered, and sample from below the + // destination because the new text is still above the pane. + const fall: Track = .{ .effect = .fall, .frame = 4, .to = box }; + var falling = false; + var col: u16 = 0; + while (col < area.cols) : (col += 1) switch (charSource(fall, col, 0, area)) { + .old => {}, + .byte, .churn => return error.FallShouldNotChurn, + .at => |offset| { + try std.testing.expectEqual(@as(i32, 0), offset.cols); + try std.testing.expect(offset.rows >= 0); + if (offset.rows > 0) falling = true; + }, + }; + try std.testing.expect(falling); + + // The wave displaces rows both ways as it travels, and only rows. + const wave: Track = .{ .effect = .wave, .frame = 1, .to = box }; + var above = false; + var below = false; + col = 0; + while (col < area.cols) : (col += 1) { + const offset = charSource(wave, col, 3, area).at; + try std.testing.expectEqual(@as(i32, 0), offset.cols); + if (offset.rows < 0) above = true; + if (offset.rows > 0) below = true; + } + try std.testing.expect(above and below); + + // The curtain has a head: columns behind it hold the old grid, columns the + // head has passed are settled, and the head itself is still sliding. + const curtain: Track = .{ .effect = .curtain, .frame = 5, .to = box }; + try std.testing.expectEqual(CharSource.settled, charSource(curtain, 0, 0, area)); + try std.testing.expectEqual(CharSource{ .old = {} }, charSource(curtain, 29, 0, area)); + var sliding = false; + col = 0; + while (col < area.cols) : (col += 1) switch (charSource(curtain, col, 0, area)) { + .at => |offset| if (offset.cols < 0) { + sliding = true; + }, + .old, .byte, .churn => {}, + }; + try std.testing.expect(sliding); + + var scramble: Track = .{ .effect = .scramble, .frame = 3, .to = box }; + var churning: usize = 0; + var locked: usize = 0; + var changed = false; + col = 0; + while (col < area.cols) : (col += 1) switch (charSource(scramble, col, 0, area)) { + .churn => |byte| { + try std.testing.expect(byte >= ' ' and byte <= '~'); + churning += 1; + scramble.frame = 4; + switch (charSource(scramble, col, 0, area)) { + .churn => |next| changed = changed or next != byte, + .old, .at, .byte => {}, + } + scramble.frame = 3; + }, + .at => locked += 1, + .old, .byte => return error.ScrambleShouldNotFreeze, + }; + try std.testing.expect(churning > 0 and locked > 0 and changed); + + // The typewriter writes in reading order with a caret on its head. + const typewriter: Track = .{ .effect = .typewriter, .frame = 7, .to = box }; + try std.testing.expectEqual(CharSource.settled, charSource(typewriter, 0, 0, area)); + try std.testing.expectEqual( + CharSource{ .old = {} }, + charSource(typewriter, area.cols - 1, area.rows - 1, area), + ); + var carets: usize = 0; + var row: u16 = 0; + while (row < area.rows) : (row += 1) { + col = 0; + while (col < area.cols) : (col += 1) switch (charSource(typewriter, col, row, area)) { + .byte => |byte| { + try std.testing.expectEqual(@as(u8, '_'), byte); + carets += 1; + }, + .old, .at, .churn => {}, + }; + } + try std.testing.expectEqual(@as(usize, 1), carets); +} + +test "opening presets separate geometry and content transitions" { + const target: Box = .{ .x = 30, .y = 2, .w = 20, .h = 8 }; + try std.testing.expectEqual(target, openingBox(.ascii, target, 80)); + try std.testing.expectEqual(@as(f32, 0), openingBox(.zoom, target, 80).w); + try std.testing.expectEqual(@as(f32, 80), openingBox(.slide, target, 80).x); + try std.testing.expectEqual(@as(f32, target.y + target.h), openingBox(.vertical, target, 80).y); + try std.testing.expectEqual(@as(f32, target.y + target.h), closingBox(.vertical, target).y); + + var track: Track = .{ .effect = .slide, .from = target, .to = target }; + try std.testing.expect(track.active()); + track.frame = track.effect.frames(); + try std.testing.expect(!track.active()); + + track = .{ .effect = .dissolve, .frame = 3, .from = .{}, .to = target }; + try std.testing.expectEqual(target, track.visualBox()); + + var closing: Track = .{ + .phase = .closing, + .effect = .vertical, + .from = target, + .to = closingBox(.vertical, target), + }; + try std.testing.expectEqual(target, closing.contentBox()); + closing.frame = 2; + try std.testing.expect(closing.amount() < progress(.vertical, closing.frame)); +} + +test "dissolve has exact stable endpoints" { + for (0..64) |col| { + const x: u16 = @intCast(col); + try std.testing.expect(!dissolveRevealed(42, x, 7, 0)); + try std.testing.expect(dissolveRevealed(42, x, 7, 1)); + if (dissolveRevealed(42, x, 7, 0.25)) + try std.testing.expect(dissolveRevealed(42, x, 7, 0.75)); + } +} + +pub const frame_ms: u32 = 16; +pub const frame_ns: u64 = frame_ms * std.time.ns_per_ms; +pub const transition_steps: u16 = 10; + +/// A displayed value that fades from one target to the next over +/// `transition_steps` frames; the chrome colours are one. +pub fn Fade(comptime Value: type) type { + return struct { + const Self = @This(); + + from: Value, + to: Value, + displayed: Value, + step: u16 = transition_steps, + + pub fn init(value: Value) Self { + return .{ .from = value, .to = value, .displayed = value }; + } + + pub fn isActive(a: *const Self) bool { + return a.step < transition_steps; + } + + pub fn retarget(a: *Self, target: Value) void { + a.from = a.displayed; + a.to = target; + a.step = if (std.meta.eql(a.from, target)) transition_steps else 0; + if (a.step == transition_steps) a.displayed = target; + } + + pub fn advance(a: *Self) void { + if (!a.isActive()) return; + a.step += 1; + a.displayed = if (a.step == transition_steps) + a.to + else + Value.interpolate(a.from, a.to, a.step, transition_steps); + } + + pub fn snap(a: *Self, value: Value) void { + a.* = init(value); + } + }; +} + +pub fn Immediate(comptime Value: type) type { + return struct { + const Self = @This(); + + displayed: Value, + + pub fn init(value: Value) Self { + return .{ .displayed = value }; + } + + pub fn isActive(_: *const Self) bool { + return false; + } + + pub fn retarget(a: *Self, target: Value) void { + a.displayed = target; + } + + pub fn advance(_: *Self) void {} + + pub fn snap(a: *Self, value: Value) void { + a.displayed = value; + } + }; +} + +pub fn interpolateRgb(from: [3]u8, to: [3]u8, step: u16, steps: u16) [3]u8 { + if (step == 0) return from; + if (step >= steps) return to; + var out: [3]u8 = undefined; + for (&out, from, to) |*dst, a, b| { + const numerator = @as(u32, a) * (steps - step) + @as(u32, b) * step; + dst.* = @intCast((numerator + steps / 2) / steps); + } + return out; +} + +const TestColor = struct { + rgb: [3]u8, + + pub fn interpolate(from: TestColor, to: TestColor, step: u16, steps: u16) TestColor { + return .{ .rgb = interpolateRgb(from.rgb, to.rgb, step, steps) }; + } +}; + +test "Immediate lands where a completed Transition lands" { + const from: TestColor = .{ .rgb = .{ 240, 3, 90 } }; + const to: TestColor = .{ .rgb = .{ 5, 222, 90 } }; + + var faded = Fade(TestColor).init(from); + faded.retarget(to); + for (0..transition_steps) |_| faded.advance(); + + var instant = Immediate(TestColor).init(from); + try std.testing.expect(!instant.isActive()); + instant.retarget(to); + try std.testing.expectEqual(faded.displayed, instant.displayed); + + // Never active, so a frontend that renders only while something is animating stops immediately + // rather than spending ten frames discovering there is nothing to draw. + try std.testing.expect(!instant.isActive()); + instant.advance(); + try std.testing.expectEqual(to, instant.displayed); + + instant.snap(from); + try std.testing.expectEqual(from, instant.displayed); +} + +test "fixed-step interpolation has exact monotonic endpoints" { + const Tween = Fade(TestColor); + const from: TestColor = .{ .rgb = .{ 240, 3, 90 } }; + const to: TestColor = .{ .rgb = .{ 5, 222, 90 } }; + var tween = Tween.init(from); + tween.retarget(to); + try std.testing.expectEqual(from, tween.displayed); + + var previous = tween.displayed; + for (0..transition_steps) |_| { + tween.advance(); + try std.testing.expect(tween.displayed.rgb[0] <= previous.rgb[0]); + try std.testing.expect(tween.displayed.rgb[1] >= previous.rgb[1]); + try std.testing.expectEqual(@as(u8, 90), tween.displayed.rgb[2]); + previous = tween.displayed; + } + try std.testing.expect(!tween.isActive()); + try std.testing.expectEqual(to, tween.displayed); + tween.advance(); + try std.testing.expectEqual(to, tween.displayed); +} + +test "retarget starts at the currently displayed value" { + const Tween = Fade(TestColor); + const first: TestColor = .{ .rgb = .{ 0, 40, 200 } }; + const second: TestColor = .{ .rgb = .{ 200, 140, 0 } }; + const third: TestColor = .{ .rgb = .{ 20, 10, 250 } }; + var tween = Tween.init(first); + tween.retarget(second); + tween.advance(); + tween.advance(); + tween.advance(); + const on_screen = tween.displayed; + + tween.retarget(third); + try std.testing.expectEqual(on_screen, tween.from); + try std.testing.expectEqual(on_screen, tween.displayed); + try std.testing.expect(tween.isActive()); + for (0..transition_steps) |_| tween.advance(); + try std.testing.expectEqual(third, tween.displayed); +} + diff --git a/src/body_layer.zig b/src/body_layer.zig index a354512f..a0195fb8 100644 --- a/src/body_layer.zig +++ b/src/body_layer.zig @@ -1,9 +1,6 @@ -//! A pane body as the surface shows it. A file body's logical rows can -//! outnumber its physical grid rows: hosts place the compact declaration rows -//! first and clip the remaining body rows. After the layer types come the -//! functions that draw a body into the surface: its text, colours, selections -//! and cursor; then the tags drawn beside it, a pane's and the column and -//! workspace ones, each line a tag layer of its own. +//! Drawing a pane body into a surface: its text, colours, selections and +//! cursor, and joining a body with compact context rows through its layer +//! (Layer.zig). const std = @import("std"); const pardes = @import("pardes.zig"); const normal = @import("normal.zig"); @@ -29,7 +26,7 @@ const tagline = @import("tagline.zig"); const Messages = @import("Messages.zig"); const Text = panes.Text; const MAX_PANES = pardes.MAX_PANES; -const TagKind = @import("tag_layer.zig").Kind; +const TagKind = @import("Layer.zig").Kind; const MAX_TAG_ROWS = pardes.MAX_TAG_ROWS; const NOTICE_LAYER_BASE = pardes.NOTICE_LAYER_BASE; const TAG_LINE_LAYER_BASE = pardes.TAG_LINE_LAYER_BASE; @@ -40,112 +37,11 @@ const COLBAR_H = pardes.COLBAR_H; const TAG_GAP = pardes.TAG_GAP; const wordBoundsAtCol = pardes.wordBoundsAtCol; -pub const Metrics = struct { - body_w: u16 = 1, - body_h: u16 = 1, - tagline_w: u16 = 1, - tagline_h: u16 = 1, -}; - -pub const Layer = struct { - pane: u16 = 0, - serial: u32 = 0, - viewport: pardes.Rect = .{ .x = 0, .y = 0, .w = 0, .h = 0 }, - cols: u16 = 0, - rows: u16 = 0, - context_rows: u16 = 0, - context_separators: std.bit_set.StaticBitSet(limits.wrap_rows) = .initEmpty(), - cells: []pardes.Cell = &.{}, - cursor: ?struct { x: u16, y: u16, bar: bool = false } = null, - - pub fn setContextLines(layer: *Layer, lines: []const i32) void { - layer.context_separators = .initEmpty(); - const count = @min(lines.len, layer.context_rows); - var row: usize = 0; - while (row + 1 < count and row < limits.wrap_rows) : (row += 1) { - if (lines[row + 1] != lines[row] +| 1) layer.context_separators.set(row); - } - } - - pub fn hasContextBorderAfter(layer: *const Layer, row: usize) bool { - if (row >= layer.context_rows or row >= limits.wrap_rows) return false; - return row + 1 == layer.context_rows or layer.context_separators.isSet(row); - } - - pub fn rowTop(layer: *const Layer, row: u16, body_h: f32, tagline_h: f32) f32 { - const body = @max(1, body_h); - const tag = std.math.clamp(tagline_h, 1, body); - return @as(f32, @floatFromInt(layer.viewport.y)) * body + - @as(f32, @floatFromInt(@min(row, layer.context_rows))) * tag + - @as(f32, @floatFromInt(row -| layer.context_rows)) * body; - } - - pub fn rowHeight(layer: *const Layer, row: u16, body_h: f32, tagline_h: f32) f32 { - return if (row < layer.context_rows) std.math.clamp(tagline_h, 1, @max(1, body_h)) else @max(1, body_h); - } - - pub fn hitAt(layer: *const Layer, x: f32, y: f32, body_w: f32, body_h: f32, tagline_w: f32, tagline_h: f32) ?pardes.Mouse.BodyHit { - if (layer.rows == 0 or !std.math.isFinite(x) or !std.math.isFinite(y)) return null; - const bw = @max(1, body_w); - const bh = @max(1, body_h); - const tw = std.math.clamp(tagline_w, 1, bw); - const th = std.math.clamp(tagline_h, 1, bh); - const dx = x - @as(f32, @floatFromInt(layer.viewport.x)) * bw; - const dy = y - @as(f32, @floatFromInt(layer.viewport.y)) * bh; - if (dx < 0 or dy < 0 or dx >= @as(f32, @floatFromInt(layer.viewport.w)) * bw or dy >= @as(f32, @floatFromInt(layer.viewport.h)) * bh) return null; - const headers = @as(f32, @floatFromInt(layer.context_rows)) * th; - const row: u16 = @intFromFloat(if (dy < headers) @floor(dy / th) else @as(f32, @floatFromInt(layer.context_rows)) + @floor((dy - headers) / bh)); - if (row >= layer.rows) return null; - const col: u16 = @intFromFloat(@min(@as(f32, @floatFromInt(layer.cols -| 1)), @floor(dx / (if (row < layer.context_rows) tw else bw)))); - return .{ - .serial = layer.serial, - .row = row, - .col = col + config.GUTTER, - .pixel_x = x, - .pixel_y = y, - .metrics = .{ .body_w = @intFromFloat(bw), .body_h = @intFromFloat(bh), .tagline_w = @intFromFloat(tw), .tagline_h = @intFromFloat(th) }, - }; - } -}; - -test "compact body layer rows fill reclaimed height and invert exact boundaries" { - const layer: Layer = .{ .serial = 7, .viewport = .{ .x = 4, .y = 3, .w = 40, .h = 10 }, .cols = 40, .rows = 15, .context_rows = 5 }; - try std.testing.expectEqual(@as(f32, 120), layer.rowTop(5, 20, 12)); - try std.testing.expectEqual(@as(f32, 240), layer.rowTop(11, 20, 12)); - try std.testing.expectEqual(@as(f32, 12), layer.rowHeight(4, 20, 12)); - try std.testing.expectEqual(@as(f32, 20), layer.rowHeight(5, 20, 12)); - for (0..12) |index| { - const row: u16 = @intCast(index); - const y = layer.rowTop(row, 20, 12) + layer.rowHeight(row, 20, 12) / 2; - const width: f32 = if (row < 5) 6 else 10; - const hit = layer.hitAt(40 + 3.5 * width, y, 10, 20, 6, 12).?; - try std.testing.expectEqual(row, hit.row); - try std.testing.expectEqual(@as(u16, 3 + config.GUTTER), hit.col); - } - try std.testing.expectEqual(@as(u16, 4), layer.hitAt(45, 119.99, 10, 20, 6, 12).?.row); - try std.testing.expectEqual(@as(u16, 5), layer.hitAt(45, 120, 10, 20, 6, 12).?.row); - try std.testing.expectEqual(@as(u16, 11), layer.hitAt(45, 259.99, 10, 20, 6, 12).?.row); - try std.testing.expect(layer.hitAt(45, 260, 10, 20, 6, 12) == null); - try std.testing.expect(layer.hitAt(39.99, 80, 10, 20, 6, 12) == null); - try std.testing.expect(layer.hitAt(std.math.nan(f32), 80, 10, 20, 6, 12) == null); -} - -test "compact context borders separate source gaps and preserve multiline headers" { - var layer: Layer = .{ .context_rows = 6 }; - layer.setContextLines(&.{ 3, 4, 8, 9, 10, 17 }); - const expected = [_]bool{ false, true, false, false, true, true, false }; - for (expected, 0..) |border, row| try std.testing.expectEqual(border, layer.hasContextBorderAfter(row)); - layer.context_rows = 2; - layer.setContextLines(&.{ 9, 10 }); - try std.testing.expect(!layer.hasContextBorderAfter(0)); - try std.testing.expect(layer.hasContextBorderAfter(1)); - try std.testing.expect(!layer.hasContextBorderAfter(4)); - try std.testing.expect(!layer.context_separators.isSet(4)); -} +const Layer = @import("Layer.zig"); // ---- drawing a pane body into the surface ---- -fn paintTerminalSelection(p: *Pardes, pane: *Pane, r: Rect, rows: []const Pane.PointerRow, bg: [3]u8, fg: ?[3]u8) void { +fn paintTerminalSelection(p: *Pardes, s: *Surface, pane: *Pane, r: Rect, rows: []const Pane.PointerRow, bg: [3]u8, fg: ?[3]u8) void { const body = bodyText(p, p.scratch.allocator(), pane) catch return; const raw = pane.body.mode == .tty; const tx = r.x + config.GUTTER; @@ -178,7 +74,7 @@ fn paintTerminalSelection(p: *Pardes, pane: *Pane, r: Rect, rows: []const Pane.P var col = panes.File.rawDisplayCol(line, lo); const end = panes.File.rawDisplayCol(line, hi); while (col < end and col < width) : (col += 1) { - const cell = p.surface.at(tx + @as(u16, @intCast(col)), body_y + @as(u16, @intCast(visible))); + const cell = s.at(tx + @as(u16, @intCast(col)), body_y + @as(u16, @intCast(visible))); cell.default = false; cell.style.bg = .{ .rgb = bg }; if (fg) |ink| cell.style.fg = .{ .rgb = ink }; @@ -187,8 +83,8 @@ fn paintTerminalSelection(p: *Pardes, pane: *Pane, r: Rect, rows: []const Pane.P } } -fn paintSourceSelection(p: *Pardes, pane: *Pane, r: Rect, rows: []const Pane.PointerRow, bg: [3]u8, fg: ?[3]u8) void { - if (pane.isTerminal()) return paintTerminalSelection(p, pane, r, rows, bg, fg); +fn paintSourceSelection(p: *Pardes, s: *Surface, pane: *Pane, r: Rect, rows: []const Pane.PointerRow, bg: [3]u8, fg: ?[3]u8) void { + if (pane.isTerminal()) return paintTerminalSelection(p, s, pane, r, rows, bg, fg); const terminal_lines = if (pane.file == null) panes.Terminal.cursorLines(p, pane) catch return else &.{}; const tx = r.x + config.GUTTER; const width = r.w -| config.GUTTER; @@ -209,7 +105,7 @@ fn paintSourceSelection(p: *Pardes, pane: *Pane, r: Rect, rows: []const Pane.Poi var col = prefix + @as(i32, @intCast(panes.File.rawDisplayCol(line[start..], lo - start))); const last = prefix + @as(i32, @intCast(panes.File.rawDisplayCol(line[start..], hi - start))); while (col < last and col < width) : (col += 1) { - const cell = p.surface.at(tx + @as(u16, @intCast(col)), body_y + @as(u16, @intCast(visible))); + const cell = s.at(tx + @as(u16, @intCast(col)), body_y + @as(u16, @intCast(visible))); cell.default = false; cell.style.bg = .{ .rgb = bg }; if (fg) |ink| cell.style.fg = .{ .rgb = ink }; @@ -220,6 +116,7 @@ fn paintSourceSelection(p: *Pardes, pane: *Pane, r: Rect, rows: []const Pane.Poi pub fn paintPointerSelection( p: *Pardes, + s: *Surface, pane: *Pane, r: Rect, tx: u16, @@ -227,18 +124,19 @@ pub fn paintPointerSelection( tag_y: u16, body_y: u16, sl: Pane.Sel, + /// Rows of the selection above this are left alone. + from_row: u16, bg: [3]u8, fg: ?[3]u8, ) void { - if (pane.pointerSelection(sl)) |rows| return paintSourceSelection(p, pane, r, rows, bg, fg); - const s = &p.surface; + if (pane.pointerSelection(sl)) |rows| return paintSourceSelection(p, s, pane, r, rows, bg, fg); const r0 = @min(sl.r0, sl.r1); const r1 = @max(sl.r0, sl.r1); const c0 = @max(0, @min(sl.c0, sl.c1)); const c1 = @max(0, @max(sl.c0, sl.c1)); var row: u16 = 0; while (row < r.h) : (row += 1) { - if (@as(i32, row) < r0 or @as(i32, row) > r1) continue; + if (@as(i32, row) < r0 or @as(i32, row) > r1 or row < from_row) continue; const sy = if (row < pane.tag_rows) tag_y + row else body_y + row - pane.tag_rows; // File line numbers occupy a gutter only in the body. The tag is // row zero in Sel space and starts at its real first text cell. @@ -255,15 +153,33 @@ pub fn paintPointerSelection( } } -pub fn renderBodyLayer(p: *Pardes, arena: std.mem.Allocator, pane: *Pane, r: Rect, id: usize) !void { - if (!p.settings.tree_context_tag_style or pane.context_rows == 0 or pane.file == null or pane.collapsed) return; - if (r.w <= config.GUTTER or r.h <= pane.tag_rows) return; +/// The selection colour of each pointer button's sweep: the select button's +/// and the look and exec buttons', each tinted toward its own accent. +pub fn buttonTints(th: *const colors.Theme) [3][3]u8 { + const accent2 = if (std.mem.eql(u8, &th.num, &th.str)) th.comment else th.num; + return .{ + colors.mix(th.sel_bg, colors.mix(th.sel_bg, th.kw)), + colors.mix(th.sel_bg, colors.mix(th.sel_bg, th.str)), + colors.mix(th.sel_bg, colors.mix(th.sel_bg, accent2)), + }; +} + +/// A pane's body, painted once. A file body with compact tree-sitter +/// context rows is painted into its body layer -- more rows than the grid +/// has, the context rows at the tagline's height -- and the grid's rows are +/// copies of that layer's first ones, at body height. Any other body has no +/// rows the grid cannot show, and is painted straight onto the grid. The +/// rail is the grid's alone. +pub fn joinBody(p: *Pardes, s: *Surface, arena: std.mem.Allocator, pane: *Pane, r: Rect, id: usize, active: bool, rail: pardes.Region) !void { + const file = if (pane.file) |*f| f else return renderBody(p, s, arena, pane, r, id, active, rail, null); + if (!p.settings.tree_context_tag_style or pane.collapsed or r.h <= pane.tag_rows) + return renderBody(p, s, arena, pane, r, id, active, rail, null); + // Which rows are context rows is decided by the text the body shows. + const text = try panes.File.bodyText(arena, pane, file, p.settings.wrap); const viewport_rows = r.h - pane.tag_rows; - if (viewport_rows == 0) return; - // The canonical fixed grid remains available to terminal clients. The - // separate body layer reserves enough rows for any compact font size. const logical_rows = @min(@as(usize, pane.rows) + pane.context_rows, pane.wrap_line.len); - if (logical_rows <= pane.context_rows) return; + if (pane.context_rows == 0 or logical_rows <= pane.context_rows) + return renderBody(p, s, arena, pane, r, id, active, rail, text); pane.body_rows = @intCast(logical_rows); const bh: usize = @max(1, p.row_metrics.body_h); const th: usize = std.math.clamp(p.row_metrics.tagline_h, 1, bh); @@ -272,27 +188,24 @@ pub fn renderBodyLayer(p: *Pardes, arena: std.mem.Allocator, pane: *Pane, r: Rec const context_pixels = @as(usize, pane.context_row_limit.?) * th; pane.body_visible_rows = @intCast(@min(logical_rows, pane.context_row_limit.? + @max(1, (body_pixels -| context_pixels) / bh))); const width = r.w - config.GUTTER; - const layer = &p.surface.body_layers[id]; + const layer = &s.body_layers[id]; const count = logical_rows * width; if (layer.cells.len != count) layer.cells = try p.gpa.realloc(layer.cells, count); const temporary_cells = try arena.alloc(Cell, @as(usize, r.w) * (logical_rows + pane.tag_rows)); @memset(temporary_cells, .{}); var temporary: Surface = .{ .cols = r.w, .rows = @intCast(logical_rows + pane.tag_rows), .cells = temporary_cells }; - std.mem.swap(Surface, &p.surface, &temporary); const synthetic: Rect = .{ .x = 0, .y = 0, .w = r.w, .h = @intCast(logical_rows + pane.tag_rows) }; - renderBody(p, arena, pane, synthetic, id, id == p.active, false) catch |err| { - std.mem.swap(Surface, &p.surface, &temporary); - return err; - }; - std.mem.swap(Surface, &p.surface, &temporary); + try renderBody(p, &temporary, arena, pane, synthetic, id, active, null, null); const first_row: usize = if (p.settings.tag_bottom) 0 else pane.tag_rows; for (0..logical_rows) |row| { const start = (row + first_row) * r.w + config.GUTTER; @memcpy(layer.cells[row * width ..][0..width], temporary_cells[start..][0..width]); } - layer.pane = @intCast(id); + layer.kind = .body; + layer.id = @intCast(id); layer.serial = pane.serial; - layer.viewport = .{ .x = r.x + config.GUTTER, .y = p.bodyTop(pane, r), .w = width, .h = viewport_rows }; + const body = s.region(.body, id).?; + layer.viewport = .{ .x = body.rect.x, .y = body.rect.y, .w = body.rect.w - body.clip, .h = body.rect.h }; layer.cols = width; layer.rows = @intCast(logical_rows); layer.context_rows = pane.context_rows; @@ -302,10 +215,29 @@ pub fn renderBodyLayer(p: *Pardes, arena: std.mem.Allocator, pane: *Pane, r: Rec if (cursor.x >= config.GUTTER and cursor.y >= first_row) layer.cursor = .{ .x = cursor.x - config.GUTTER, .y = @intCast(cursor.y - first_row), .bar = cursor.bar }; } + // The grid: the layer's first rows, as many as the body has, each a + // body row high; its caret where one of them has it. (pane.rows is the + // body's height after sync, and context rows are only prepared while + // the rows fit the wrap table, so the layer always has these rows.) + std.debug.assert(layer.rows >= viewport_rows); + for (0..viewport_rows) |row| { + const grid_row = s.cells[(body.rect.y + row) * s.cols ..][body.rect.x..][0..width]; + @memcpy(grid_row, layer.cells[row * width ..][0..width]); + } + if (layer.cursor) |cursor| if (cursor.y < viewport_rows) { + s.cursor = .{ .x = body.rect.x + cursor.x, .y = body.rect.y + cursor.y, .bar = cursor.bar }; + }; + const chrome = p.chromeTheme(); + const theme = p.theme(); + const pane_bg: Color = if (theme.bg) |c| .{ .rgb = c } else .default; + if (rail.rect.h > 0) { + s.fill(rail.rect.x, rail.rect.y, 1, rail.rect.h, .{ .bg = .{ .rgb = chrome.scroll_track } }); + s.fill(rail.rect.x + 1, rail.rect.y, 1, rail.rect.h, .{ .bg = pane_bg }); + s.fill(rail.rect.x, rail.rect.y + rail.thumb_y, 1, rail.thumb_h, .{ .bg = .{ .rgb = chrome.scroll_thumb } }); + } } -pub fn renderBody(p: *Pardes, arena: std.mem.Allocator, pane: *Pane, r: Rect, id: usize, active: bool, scrollbar: bool) !void { - const s = &p.surface; +pub fn renderBody(p: *Pardes, s: *Surface, arena: std.mem.Allocator, pane: *Pane, r: Rect, id: usize, active: bool, rail: ?pardes.Region, built: ?[]const u8) !void { const th = p.theme(); const chrome = p.chromeTheme(); const tx = r.x + config.GUTTER; @@ -325,8 +257,14 @@ pub fn renderBody(p: *Pardes, arena: std.mem.Allocator, pane: *Pane, r: Rect, id .bg = pane_bg, }; const tz_body = tracy.zone(@src(), "bodyText"); - const body = try bodyText(p, arena, pane); + const body = built orelse try bodyText(p, arena, pane); tz_body.end(); + // A select sweep begun on the tag and dragged into the body marks the + // body rows it crossed only where no text is: it is laid down before + // the rows, which paint over it. + const sweep = pane.sel[pardes.sel_slot]; + if (sweep.state != .none and (sweep.state != .done or pardes.sel_slot == 0) and @min(sweep.r0, sweep.r1) < pane.tag_rows) + paintPointerSelection(p, s, pane, r, tx, tw, tag_y, body_y, sweep, pane.tag_rows, th.sel_bg, th.sel_fg); { // The rows themselves. `bodyText` above is only the string BUILD; // this is what writes it into the surface. @@ -343,32 +281,25 @@ pub fn renderBody(p: *Pardes, arena: std.mem.Allocator, pane: *Pane, r: Rect, id const tz_color = tracy.zone(@src(), "paneRecolor"); // File layout is independent of whether its producer requests colors. if (pane.file) |*f| { - panes.File.drawGutter(p, pane, r, tx, tw, body_h, active); + panes.File.drawGutter(p, s, pane, r, tx, tw, body_h, active); if (p.settings.colors and pane.colorAlgo() != .none) - panes.File.recolorSyntax(p, pane, f, r, tx, tw, body_h); - panes.File.drawWrapMarkers(p, pane, r, tx, tw, body_h, pane_bg); + panes.File.recolorSyntax(p, s, pane, f, r, tx, tw, body_h); + panes.File.drawWrapMarkers(p, s, pane, r, tx, tw, body_h, pane_bg); } else if (pane.isTerminal() and p.settings.colors) { - panes.Terminal.recolorAnsi(p, pane, r, tx, tw, body_h, body); + panes.Terminal.recolorAnsi(p, s, pane, r, tx, tw, body_h, body); } tz_color.end(); - const accent2 = if (std.mem.eql(u8, &th.num, &th.str)) th.comment else th.num; - const sel_btn = [3][3]u8{ - colors.mix(th.sel_bg, colors.mix(th.sel_bg, th.kw)), - colors.mix(th.sel_bg, colors.mix(th.sel_bg, th.str)), - colors.mix(th.sel_bg, colors.mix(th.sel_bg, accent2)), - }; + const sel_btn = buttonTints(th); if (p.look_hover_preview) |preview| { if (preview.pane == id and preview.serial == pane.serial) { // Preserve body ink, then let every real user selection below - // win over this quiet affordance. mark_hover carries the - // cells this paints out to the hosts as the affordance rect — - // macOS composes its glass overlay over exactly these. + // win over this quiet affordance. const preview_bg = colors.mix(page_rgb, colors.mix(page_rgb, th.sel_bg)); if (preview.file_word) |word| - panes.File.paintWordSelection(p, pane, r, word.row, word.lo, word.hi, preview_bg) + panes.File.paintWordSelection(p, s, pane, r, word.row, word.lo, word.hi, preview_bg) else if (preview.sel) |sel| - paintPointerSelection(p, pane, r, tx, tw, tag_y, body_y, sel, preview_bg, null); + paintPointerSelection(p, s, pane, r, tx, tw, tag_y, body_y, sel, pane.tag_rows, preview_bg, null); } } const modal_hover = if (p.look_hover_preview) |preview| @@ -381,7 +312,7 @@ pub fn renderBody(p: *Pardes, arena: std.mem.Allocator, pane: *Pane, r: Rect, id // A select sweep over the tag is the tag's selection, painted there // in the tag's own selection colours. if (b == pardes.sel_slot and @min(sl.r0, sl.r1) < pane.tag_rows) continue; - paintPointerSelection(p, pane, r, tx, tw, tag_y, body_y, sl, sel_btn[b], th.sel_fg); + paintPointerSelection(p, s, pane, r, tx, tw, tag_y, body_y, sl, pane.tag_rows, sel_btn[b], th.sel_fg); } // modal line selection (helix `x`): whole body rows, normal mode only if ((pane.body.mode == .normal or modal_hover) and pane.body.msel.active) { @@ -530,34 +461,14 @@ pub fn renderBody(p: *Pardes, arena: std.mem.Allocator, pane: *Pane, r: Rect, id } } - if (scrollbar and body_h > 0) { + if (rail) |bar| if (bar.rect.h > 0) { // The rail covers the notice bands too: nothing else paints those // two gutter columns, so a gap there keeps the frame-wide border // fill and reads as a notch cut out of the scrollbar. - const rail_h = r.h -| pane.tag_rows; - s.fill(r.x, body_y, 1, rail_h, .{ .bg = .{ .rgb = chrome.scroll_track } }); - s.fill(r.x + 1, body_y, 1, rail_h, .{ .bg = pane_bg }); - const sb: struct { total: usize, offset: usize, len: usize } = if (pane.file) |*f| .{ - .total = panes.File.nlines(p.gpa, f), - .offset = f.scroll, - .len = pane.rows, - } else if (pane.pdfPage()) |page| .{ - .total = if (comptime pdf_enabled) pane.pdf.?.page_count else 1, - .offset = page, - .len = 1, - } else blk: { - const gsb = panes.Terminal.scrollbar(pane); - break :blk .{ .total = gsb.total, .offset = gsb.offset, .len = gsb.len }; - }; - const track_h: usize = body_h; - const total = if (sb.total == 0) 1 else sb.total; - const len = @max(1, (track_h * @max(1, sb.len)) / total); - const pos = (track_h * sb.offset) / total; - var sy: usize = pos; - while (sy < track_h and sy < pos + len) : (sy += 1) { - s.fill(r.x, body_y + @as(u16, @intCast(sy)), 1, 1, .{ .bg = .{ .rgb = chrome.scroll_thumb } }); - } - } + s.fill(bar.rect.x, bar.rect.y, 1, bar.rect.h, .{ .bg = .{ .rgb = chrome.scroll_track } }); + s.fill(bar.rect.x + 1, bar.rect.y, 1, bar.rect.h, .{ .bg = pane_bg }); + s.fill(bar.rect.x, bar.rect.y + bar.thumb_y, 1, bar.thumb_h, .{ .bg = .{ .rgb = chrome.scroll_thumb } }); + }; } pub fn bodyText(p: *Pardes, arena: std.mem.Allocator, pane: *Pane) ![]const u8 { @@ -578,452 +489,3 @@ pub fn bodyText(p: *Pardes, arena: std.mem.Allocator, pane: *Pane) ![]const u8 { if (pane.file) |*f| return panes.File.bodyText(arena, pane, f, p.settings.wrap); return panes.Terminal.bodyText(arena, pane); } - -/// The workspace and column tags as the grid shows them: their text, the -/// word under the pointer and, in the one being edited, its selection and -/// caret. Their tag layers are drawn by renderTagLayers. -pub fn paintHeaders(p: *Pardes) !void { - const s = &p.surface; - const chrome = p.chromeTheme(); - const th = p.theme(); - // global tagbar: full width, top rows — unless a native shell has - // taken its commands over, in which case the rows are not ours to draw - tagline.revealHeader(p); - const global = tagline.topbar(p); - const global_rows = p.topBarHeight(); - const global_scroll = if (p.header_focus and p.header_column == null) p.header_scroll else 0; - const global_top = if (p.header_focus and p.header_column == null) p.header_top else 0; - if (p.settings.workspace_tag) { - s.fill(0, 0, s.cols, global_rows, .{ - .bg = .{ .rgb = chrome.tag_bg }, - .font_role = .tagline, - }); - for (0..global_rows) |row| { - const line = modal.lineSlice(global, row + global_top); - _ = s.print(0, @intCast(row), s.cols, line[panes.File.rawAtDisplay(line, global_scroll)..], .{ - .fg = .{ .rgb = chrome.tag_fg }, - .bg = .{ .rgb = chrome.tag_bg }, - .font_role = .tagline, - }); - } - } - if (p.pointer_inside and p.hover_row < global_rows) { - const bar = modal.lineSlice(global, p.hover_row + global_top); - if (wordBoundsAtCol(bar, panes.File.rawAtDisplay(bar, p.hover_col + global_scroll))) |bounds| { - var col = panes.File.rawDisplayCol(bar, bounds.lo) -| global_scroll; - const hi = panes.File.rawDisplayCol(bar, bounds.hi) -| global_scroll; - while (col < hi and col < s.cols) : (col += 1) { - const cell = s.at(@intCast(col), p.hover_row); - cell.default = false; - cell.style.bg = .{ .rgb = th.sel_bg }; - cell.style.fg = .{ .rgb = th.sel_fg }; - } - } - } - const column_rows = p.columnBarHeight(); - if (column_rows > 0) for (0..p.ncol) |c| { - const grip = @min(config.GUTTER, p.col_w[c]); - const inset = @min(TAG_TEXT_INSET, p.col_w[c]); - const x = p.col_x[c] + inset; - const w = p.col_w[c] - inset; - const y0 = global_rows; - if (p.col_w[c] == 0 or p.col_x[c] >= s.cols) continue; - const active_col = if (layout.findPane(p, p.active)) |f| f.col == c else false; - const bg = if (active_col and p.settings.focus_tint) chrome.tag_active_bg else chrome.tag_bg; - const fg = if (active_col and p.settings.focus_tint) chrome.tag_active_fg else chrome.tag_fg; - // A grip is muted until it is grabbed; then it lights, as a pane's - // box does for the active pane, so the drag shows what it holds. - const grabbed = p.drag == .column_move and layout.columnBySerial(p, p.drag.column_move.serial) == c; - const grip_bg = if (grabbed) chrome.column_box else chrome.column_box_dim; - const lum = (@as(u16, grip_bg[0]) * 3 + @as(u16, grip_bg[1]) * 6 + @as(u16, grip_bg[2])) / 10; - const ink: [3]u8 = if (lum > 140) .{ 0, 0, 0 } else .{ 255, 255, 255 }; - const grip_style: CellStyle = .{ .bg = .{ .rgb = grip_bg }, .fg = .{ .rgb = ink }, .font_role = .tagline }; - s.fill(p.col_x[c], y0, grip, column_rows, grip_style); - s.fill(p.col_x[c] + grip, y0, inset - grip, column_rows, .{ .bg = .{ .rgb = bg }, .font_role = .tagline }); - - s.fill(x, y0, w, column_rows, .{ .bg = .{ .rgb = bg }, .font_role = .tagline }); - const bar_scroll = if (p.header_focus and p.header_column == c) p.header_scroll else 0; - const bar_top = if (p.header_focus and p.header_column == c) p.header_top else 0; - const tag = tagline.columnTag(p, c); - for (0..column_rows) |row| { - const line = modal.lineSlice(tag, row + bar_top); - _ = s.print(x, y0 + @as(u16, @intCast(row)), w, line[panes.File.rawAtDisplay(line, bar_scroll)..], .{ - .fg = .{ .rgb = fg }, - .bg = .{ .rgb = bg }, - .font_role = .tagline, - }); - } - // A carried column's pointer is aiming at a place, not a word. - if (p.pointer_inside and p.drag != .column_move and p.hover_row >= y0 and p.hover_row < y0 + column_rows and p.hover_col >= x and p.hover_col < x + w) { - const bar = modal.lineSlice(tag, p.hover_row - y0 + bar_top); - if (wordBoundsAtCol(bar, panes.File.rawAtDisplay(bar, p.hover_col - x + bar_scroll))) |bounds| { - var col = panes.File.rawDisplayCol(bar, bounds.lo) -| bar_scroll; - const hi = panes.File.rawDisplayCol(bar, bounds.hi) -| bar_scroll; - while (col < hi and col < w) : (col += 1) { - const cell = s.at(x + @as(u16, @intCast(col)), p.hover_row); - cell.style.bg = .{ .rgb = th.sel_bg }; - cell.style.fg = .{ .rgb = th.sel_fg }; - } - } - } - }; - if (tagline.focusedHeader(p)) |t| { - const text = try edit.flatSurface(p, t); - const x = if (p.header_column) |c| p.col_x[c] + TAG_TEXT_INSET else 0; - const w = if (p.header_column) |c| p.col_w[c] -| TAG_TEXT_INSET else s.cols; - const y: u16 = if (p.header_column != null) global_rows else 0; - const rows = if (p.header_column != null) column_rows else global_rows; - for (0..rows) |row| { - const bar = modal.lineSlice(text, row + p.header_top); - const span = tagline.headerSelection(t, text, row + p.header_top) orelse continue; - var col = panes.File.rawDisplayCol(bar, span.lo) -| p.header_scroll; - const hi = panes.File.rawDisplayCol(bar, span.hi) -| p.header_scroll; - while (col < hi and col < w) : (col += 1) { - const cell = s.at(x + @as(u16, @intCast(col)), y + @as(u16, @intCast(row))); - cell.style.fg = .{ .rgb = th.sel_fg }; - cell.style.bg = .{ .rgb = th.sel_bg }; - } - } - // A prompt answering for the header has the caret on its band. - const asking = if (p.panes[p.active]) |active| active.prompt != .none else false; - const cur: usize = @intCast(@max(0, t.cur_row)); - if (!asking and cur >= p.header_top and cur < p.header_top + rows) { - const bar = modal.lineSlice(text, cur); - const caret = panes.File.rawDisplayCol(bar, @min(@as(usize, @intCast(@max(0, t.cur_col))), bar.len)) -| p.header_scroll; - if (caret < w) s.cursor = .{ .x = x + @as(u16, @intCast(caret)), .y = y + @as(u16, @intCast(cur - p.header_top)), .bar = t.mode == .insert }; - } - } -} - -fn tagTintRange(pane: *const Pane, tag: []const u8, prefix_len: usize) ?struct { lo: usize, hi: usize } { - if (pane.isTerminal()) { - var words = std.mem.tokenizeAny(u8, tag[prefix_len..], " \t\r\n"); - while (words.next()) |word| { - if (!std.mem.eql(u8, word, "Tty") and !std.mem.startsWith(u8, word, "Tty+")) continue; - const lo = @intFromPtr(word.ptr) - @intFromPtr(tag.ptr); - return .{ .lo = lo, .hi = lo + word.len }; - } - return null; - } - var start: usize = 0; - const name = if (pane.file) |file| - if (pane.prompt == .name) pane.input.own orelse file.path else file.path - else if (pane.image) |state| blk: { - // Image tags put renderer controls before the path. - start = std.mem.lastIndexOf(u8, tag[0..prefix_len], state.path) orelse return null; - break :blk state.path; - } else if (comptime pdf_enabled) blk: { - break :blk if (pane.pdf) |state| state.path else return null; - } else return null; - const basename = if (std.mem.lastIndexOfScalar(u8, name, '/')) |slash| slash + 1 else 0; - if (basename == name.len) return null; - return .{ .lo = start + basename, .hi = start + name.len }; -} - -pub fn renderTagLayers(p: *Pardes, arena: std.mem.Allocator) !void { - const chrome = p.chromeTheme(); - for (p.panes, 0..) |slot, id| { - const pane = slot orelse continue; - const r = p.rects[id]; - if (r.w <= TAG_TEXT_INSET or r.h == 0) continue; - const tag = try tagline.tagText(p, arena, pane); - const rows = pane.tag_rows; - // As wide as the widest line it shows, and never narrower than - // its viewport. - var widest: usize = 0; - var split = std.mem.splitScalar(u8, tag, '\n'); - for (0..pane.tag_top) |_| _ = split.next(); - for (0..rows) |_| widest = @max(widest, panes.File.displayWidth(split.next() orelse "")); - const columns: u16 = @intCast(@min(std.math.maxInt(u16) - TAG_TEXT_INSET, @max(p.tagCapacity(r.w - TAG_TEXT_INSET), widest + 1))); - const pitch = @as(usize, columns) + TAG_TEXT_INSET; - const storage = try arena.alloc(Cell, pitch * rows); - @memset(storage, .{}); - var temporary: Surface = .{ .cols = columns + TAG_TEXT_INSET, .rows = rows, .cells = storage }; - std.mem.swap(Surface, &p.surface, &temporary); - paintPaneTag(p, arena, pane, .{ .x = 0, .y = 0, .w = columns + TAG_TEXT_INSET, .h = rows }, id, id == p.active, p.tagCapacity(r.w - TAG_TEXT_INSET)) catch |err| { - std.mem.swap(Surface, &p.surface, &temporary); - return err; - }; - std.mem.swap(Surface, &p.surface, &temporary); - // A layer to a line: the first in the pane's own slot, the rest - // in the slots kept for the lines of taller tags. - for (0..rows) |line| { - const layer = &p.surface.tag_layers[if (line == 0) id else TAG_LINE_LAYER_BASE + id * (MAX_TAG_ROWS - 1) + line - 1]; - if (layer.cells.len != columns) layer.cells = try p.gpa.realloc(layer.cells, columns); - @memcpy(layer.cells, storage[line * pitch + TAG_TEXT_INSET ..][0..columns]); - layer.kind = .pane; - layer.id = @intCast(id); - layer.serial = pane.serial; - layer.line = @intCast(line); - layer.viewport = .{ .x = r.x + TAG_TEXT_INSET, .y = p.tagTop(pane, r) + @as(u16, @intCast(line)), .w = r.w - TAG_TEXT_INSET, .h = BOX_H }; - layer.cols = columns; - layer.bg = if (id == p.active and p.settings.focus_tint) chrome.tag_active_bg else chrome.tag_bg; - layer.cursor = if (p.header_focus) null else if (temporary.cursor) |cursor| - (if (cursor.y == line) .{ .col = cursor.x - TAG_TEXT_INSET, .bar = cursor.bar } else null) - else - null; - } - } - // With the workspace tag row handed to native chrome there is no - // workspace layer to render; the menu bar carries its commands. - if (p.settings.workspace_tag) { - for (0..p.topBarHeight()) |line| { - const index = if (line == 0) MAX_PANES + MAX_COLS else HEADER_LINE_LAYER_BASE + MAX_COLS * (MAX_TAG_ROWS - 1) + line - 1; - const top = if (p.header_focus and p.header_column == null) p.header_top else 0; - try renderHeaderLayer(p, arena, index, .workspace, 0, @intCast(line), .{ .x = 0, .y = @intCast(line), .w = p.screen_w, .h = TOPBAR_H }, modal.lineSlice(tagline.topbar(p), line + top), chrome.tag_bg, chrome.tag_fg); - } - } - // Each notice is its own tagline-shaped chip over the top of the body. - // Going through the same layer machinery the pane and column tags use - // is what gives it the tagline's height, its small-font metrics, the - // band offset and the border -- none of which a body-grid row can have - // just by wearing a tagline font. The geometry is the one the grid - // pass already chose and recorded, so the two cannot disagree and the - // GUI's "skip the cells a tag layer covers" leaves no stub behind. - // A prompt is one of them too: left on the grid, a pixel shell drew - // its tagline glyphs one to a BODY cell, spaced out like a banner. - for (p.panes, 0..) |slot, id| { - const pane = slot orelse continue; - const r = p.rects[id]; - if (r.w <= TAG_TEXT_INSET or r.h <= pane.tag_rows) continue; - const first = p.bodyTop(pane, r); - var leader_buf: [16]u8 = undefined; - for (pane.notices.slice(), 0..) |kind, i| { - const text = Messages.noticeText(p, pane, i, &leader_buf); - if (text.len == 0) continue; - const cx = pane.notices.left[i]; - if (cx == std.math.maxInt(u16) or cx >= r.x + r.w) continue; - const chip = r.x + r.w - cx; - // Right aligned inside the chip, a blank cell short of its - // edge: the same one the grid pass leaves for a prompt caret. - // Wider than the chip, the text loses its head, as on the grid. - const room = p.tagCapacity(chip) -| 1; - const shown = panes.File.displayWidth(text); - var kept = text; - if (shown > room) { - var start = panes.File.rawAtDisplay(text, shown - room); - if (panes.File.rawDisplayCol(text, start) < shown - room) start = panes.File.rawAtDisplay(text, shown - room + 1); - kept = text[start..]; - } - const pad = room -| panes.File.displayWidth(kept); - const line = try arena.alloc(u8, pad + kept.len); - @memset(line[0..pad], ' '); - @memcpy(line[pad..], kept); - // A pixel shell slides the message in as it fades up, and - // fades it on the way out. - const motion: Messages.MessageMotion = if (Messages.noticeLife(pane, i)) |life| Messages.messageMotion(p, life) else .{}; - const fade = motion.alpha; - const page = p.theme().bg orelse chrome.tag_bg; - const layer_index = NOTICE_LAYER_BASE + id * Pane.Notices.max + i; - try renderHeaderLayer(p, arena, layer_index, .notice, @intCast(id), 0, .{ - .x = cx, - .y = first + @as(u16, pane.notices.row[i]), - .w = chip, - .h = BOX_H, - }, line, Messages.blendRgb(chrome.tag_bg, page, fade), Messages.blendRgb(if (kind == .message and pane.msg_sent) chrome.tag_name_fg else chrome.tag_fg, page, fade)); - p.surface.tag_layers[layer_index].slide = motion.slide; - p.surface.tag_layers[layer_index].fade = fade; - // The caret rides the band, where the prompt's glyphs are, - // at the same place in the text the grid pass puts it. - if (kind != .prompt or id != p.active or pane.prompt == .del_side or pane.prompt == .repl_choice) continue; - const typed = panes.File.displayWidth(text[0..@min(@as(usize, @intCast(@max(0, pane.input.cur_col))), text.len)]); - const dropped = shown - panes.File.displayWidth(kept); - if (typed < dropped) continue; - p.surface.tag_layers[layer_index].cursor = .{ .col = @intCast(pad + typed - dropped), .bar = pane.input.mode == .insert }; - } - } - if (p.columnBarHeight() > 0) for (0..p.ncol) |column| { - if (p.col_w[column] == 0) continue; - const active = if (layout.findPane(p, p.active)) |found| found.col == column and p.settings.focus_tint else false; - const top = if (p.header_focus and p.header_column == column) p.header_top else 0; - for (0..p.columnBarHeight()) |line| { - const index = if (line == 0) MAX_PANES + column else HEADER_LINE_LAYER_BASE + column * (MAX_TAG_ROWS - 1) + line - 1; - try renderHeaderLayer(p, arena, index, .column, @intCast(column), @intCast(line), .{ .x = p.col_x[column] + @min(TAG_TEXT_INSET, p.col_w[column]), .y = p.topBarHeight() + @as(u16, @intCast(line)), .w = p.col_w[column] -| TAG_TEXT_INSET, .h = COLBAR_H }, modal.lineSlice(tagline.columnTag(p, column), line + top), if (active) chrome.tag_active_bg else chrome.tag_bg, if (active) chrome.tag_active_fg else chrome.tag_fg); - } - }; -} - -/// One row of a header or a notice band as a tag layer: `text` is line -/// `line` of what it shows. -fn renderHeaderLayer(p: *Pardes, arena: std.mem.Allocator, index: usize, kind: TagKind, id: u16, line: u16, viewport: Rect, text: []const u8, bg: [3]u8, fg: [3]u8) !void { - _ = arena; - const layer = &p.surface.tag_layers[index]; - if (viewport.w == 0) { - layer.cols = 0; - return; - } - const columns: u16 = @intCast(@min(std.math.maxInt(u16), @max(p.tagCapacity(viewport.w), panes.File.displayWidth(text) + 1))); - if (layer.cells.len != columns) layer.cells = try p.gpa.realloc(layer.cells, columns); - layer.kind = kind; - layer.id = id; - layer.line = line; - layer.serial = if (kind == .column) p.col_serial[id] else 0; - layer.viewport = viewport; - layer.cols = columns; - layer.bg = bg; - layer.cursor = null; - layer.slide = 0; - layer.fade = 1; - var surface: Surface = .{ .cols = columns, .rows = 1, .cells = layer.cells }; - // A notice band carries a PANE id, not a column index, so it must not - // answer to the column being edited -- that would scroll and select - // its text with the column tag's offsets and give it a second caret. - const editing: ?*Text = if (p.header_focus and switch (kind) { - .workspace => p.header_column == null, - .column => p.header_column == id, - .pane, .notice => false, - }) tagline.focusedHeader(p) else null; - const scroll = if (editing != null) p.header_scroll else 0; - surface.fill(0, 0, columns, 1, .{ .bg = .{ .rgb = bg }, .font_role = .tagline }); - _ = surface.print(0, 0, columns, text[panes.File.rawAtDisplay(text, scroll)..], .{ .fg = .{ .rgb = fg }, .bg = .{ .rgb = bg }, .font_role = .tagline }); - if (editing) |t| { - if (tagline.headerSelection(t, try edit.flatSurface(p, t), line + p.header_top)) |span| { - var col = panes.File.rawDisplayCol(text, span.lo) -| scroll; - const end = panes.File.rawDisplayCol(text, span.hi) -| scroll; - while (col < end and col < columns) : (col += 1) { - surface.at(@intCast(col), 0).style.bg = .{ .rgb = p.theme().sel_bg }; - surface.at(@intCast(col), 0).style.fg = .{ .rgb = p.theme().sel_fg }; - } - } - const caret = panes.File.rawDisplayCol(text, @min(@as(usize, @intCast(@max(0, t.cur_col))), text.len)) -| scroll; - const asking = if (p.panes[p.active]) |active| active.prompt != .none else false; - if (!asking and t.cur_row == line + p.header_top and caret < columns) layer.cursor = .{ .col = @intCast(caret), .bar = t.mode == .insert }; - } else if (p.pointer_inside) { - const tag_hit = p.pointer_tag_hit; - const col: ?usize = if (tag_hit) |pointer| - (if (pointer.kind == kind and pointer.id == id and pointer.line == line) pointer.col else null) - else if (p.hover_row == viewport.y and p.hover_col >= viewport.x and p.hover_col - viewport.x < viewport.w) - p.hover_col - viewport.x - else - null; - if (col) |hover| if (wordBoundsAtCol(text, panes.File.rawAtDisplay(text, hover + scroll))) |bounds| { - var cell = panes.File.rawDisplayCol(text, bounds.lo) -| scroll; - const end = panes.File.rawDisplayCol(text, bounds.hi) -| scroll; - while (cell < end and cell < columns) : (cell += 1) { - surface.at(@intCast(cell), 0).style.bg = .{ .rgb = p.theme().sel_bg }; - surface.at(@intCast(cell), 0).style.fg = .{ .rgb = p.theme().sel_fg }; - } - }; - } -} - -pub fn paintPaneTag(p: *Pardes, arena: std.mem.Allocator, pane: *Pane, r: Rect, id: usize, active: bool, capacity: u16) !void { - const s = &p.surface; - const th = p.theme(); - const chrome = p.chromeTheme(); - const tx = r.x + @min(TAG_TEXT_INSET, r.w); - const tw = r.w -| TAG_TEXT_INSET; - const tag_y = p.tagTop(pane, r); - const body_y = p.bodyTop(pane, r); - const rows = pane.tag_rows; - const page_rgb = th.bg orelse th.tag_bg; - // Focus is visible along the tag without changing its live text grid. - const tag_bg = if (active and p.settings.focus_tint) chrome.tag_active_bg else chrome.tag_bg; - const tag_fg = if (active and p.settings.focus_tint) chrome.tag_active_fg else chrome.tag_fg; - const tag_style: CellStyle = .{ .fg = .{ .rgb = tag_fg }, .bg = .{ .rgb = tag_bg }, .font_role = .tagline }; - // Padding belongs to the same font row but keeps its default ink: a - // role must not manufacture a foreground color for blank cells. - s.fill(r.x + config.GUTTER, tag_y, @min(TAG_GAP, r.w -| config.GUTTER), rows, .{ .bg = .{ .rgb = tag_bg }, .font_role = .tagline }); - s.fill(tx, tag_y, tw, rows, .{ - .bg = .{ .rgb = tag_bg }, - .font_role = .tagline, - }); - const whole = try tagline.tagText(p, arena, pane); - const tail = tagline.curTail(pane); - const prefix_len = whole.len - tail.len; - // A row per line shown, from `tag_top`: the tag's first line carries - // the prefix, the rest are the tag's own text alone. - const top = pane.tag_top; - var lines: [MAX_TAG_ROWS][]const u8 = @splat(""); - var split = std.mem.splitScalar(u8, whole, '\n'); - for (0..top) |_| _ = split.next(); - for (lines[0..rows]) |*line| line.* = split.next() orelse ""; - // The keyboard's caret, as a row and a byte offset in that row's - // line: in the tag's own text when the tag has the keyboard, in the - // path while a name is drafted. - const Caret = struct { row: usize, at: usize }; - const caret: ?Caret = if (!active) - null - else if (pane.prompt == .name) - .{ .row = 0, .at = @min(lines[0].len, @as(usize, @intCast(@max(0, pane.input.cur_col)))) } - else if (pane.focus == .tag and pane.prompt == .none and pane.tag.cur_row >= top and pane.tag.cur_row < top + rows) caret: { - const row: usize = @intCast(pane.tag.cur_row - top); - break :caret .{ .row = row, .at = @min(lines[row].len, @as(usize, @intCast(@max(0, pane.tag.cur_col)))) }; - } else null; - if (caret) |at| { - const line = lines[at.row]; - const col = panes.File.rawDisplayCol(line, at.at); - var scroll: usize = pane.tag_scroll; - if (col < scroll) scroll = col; - if (col >= scroll + capacity) scroll = col - capacity + 1; - var raw = panes.File.rawAtDisplay(line, scroll); - scroll = panes.File.rawDisplayCol(line, raw); - if (col >= scroll + capacity) { - raw = modal.nextGrapheme(line, raw); - scroll = panes.File.rawDisplayCol(line, raw); - } - pane.tag_scroll = @intCast(scroll); - } else if (pane.focus != .tag) pane.tag_scroll = 0; - for (lines[0..rows], 0..) |line, row| { - const start = panes.File.rawAtDisplay(line, pane.tag_scroll); - _ = s.print(tx, tag_y + @as(u16, @intCast(row)), tw, line[start..], tag_style); - } - const tag = lines[0]; - if (top == 0) if (tagTintRange(pane, tag, prefix_len)) |name| { - const lo = @max(name.lo, panes.File.rawAtDisplay(tag, pane.tag_scroll)); - const hi = @min(name.hi, tag.len); - if (lo < hi) { - var col = panes.File.rawDisplayCol(tag, lo) -| pane.tag_scroll; - const end = panes.File.rawDisplayCol(tag, hi) -| pane.tag_scroll; - const name_fg = if (active and p.settings.focus_tint) chrome.tag_active_name_fg else chrome.tag_name_fg; - while (col < end and col < tw) : (col += 1) - s.at(tx + @as(u16, @intCast(col)), tag_y).style.fg = .{ .rgb = name_fg }; - } - }; - if (p.look_hover_preview) |preview| { - if (preview.pane == id and preview.serial == pane.serial) if (preview.sel) |sel| if (@min(sel.r0, sel.r1) < rows) { - const preview_bg = colors.mix(page_rgb, colors.mix(page_rgb, th.sel_bg)); - paintPointerSelection(p, pane, r, tx, tw, tag_y, body_y, sel, preview_bg, null); - }; - } - // The tag's own selections, while it has the keyboard, a line at a - // time. A range of one grapheme is the block cursor, not a selection. - if (pane.focus == .tag) { - var ranges: [Text.max_selections]modal.Selection = undefined; - const got = pane.tag.ranges(whole, 0, &ranges); - for (ranges[0..got.n]) |range| { - const lo = @min(range.anchor, range.head); - const hi = @max(range.anchor, range.head); - if (modal.nextGrapheme(whole, lo) >= hi) continue; - const first = modal.positionAt(whole, lo); - const last = modal.positionAt(whole, hi); - var row = @max(first.row, top); - while (row <= last.row and row < top + rows) : (row += 1) { - const line = lines[row - top]; - const from = if (row == first.row) first.col else 0; - const to = @min(line.len, if (row == last.row) last.col else line.len); - var col = panes.File.rawDisplayCol(line, from) -| pane.tag_scroll; - const end = panes.File.rawDisplayCol(line, to); - const y = tag_y + @as(u16, @intCast(row - top)); - while (col + pane.tag_scroll < end and col < tw) : (col += 1) { - const cell = s.at(tx + @as(u16, @intCast(col)), y); - cell.default = false; - cell.style.bg = .{ .rgb = th.sel_bg }; - cell.style.fg = .{ .rgb = th.sel_fg }; - } - } - } - } - // the caret: bar while typing, block in normal mode (same rule as a body) - if (caret) |at| { - const col = panes.File.rawDisplayCol(lines[at.row], at.at) -| pane.tag_scroll; - const mode = if (pane.prompt == .name) pane.input.mode else pane.tag.mode; - if (col < tw) s.cursor = .{ .x = tx + @as(u16, @intCast(col)), .y = tag_y + @as(u16, @intCast(at.row)), .bar = mode == .insert }; - } - - for (pane.sel, 0..) |selection, button| { - if (selection.state == .none or (selection.state == .done and button != 0)) continue; - if (@min(selection.r0, selection.r1) >= rows) continue; - paintPointerSelection(p, pane, r, tx, tw, tag_y, body_y, selection, th.sel_bg, th.sel_fg); - } -} diff --git a/src/builtins.zig b/src/builtins.zig index be0956e0..23d853c8 100644 --- a/src/builtins.zig +++ b/src/builtins.zig @@ -44,6 +44,10 @@ pub const Ctx = struct { id: usize, txt: []const u8, arg: ?[]const u8, + /// Made by a gesture on the pane's body -- a middle click, the execute + /// key -- as acme's execute() asks of its Text (exec.c:122,169): an + /// Exec from a body may be a bound REPL's (exec.zig routeToRepl). + from_body: bool = false, }; fn isEnabled(comptime T: type) bool { @@ -166,7 +170,7 @@ pub const registry = struct { if (@intFromEnum(b) == i) return switch (setting.action) { // a switch flips bare, and DumpDir bare is the default .toggle, .transition, .scene, .dump_dir => false, - .shell, .theme, .font, .tagline_size, .window_opacity, .window_blur, .message_ms => true, + .shell, .theme, .font, .tagline_size, .window_opacity, .window_blur, .message_ms, .shader, .shader_animation => true, }; unreachable; } @@ -236,16 +240,41 @@ test "Exit asks once about unsaved text, and quits when asked again" { try std.testing.expect(p.quit); } +/// A dump file that exists, for a Restore to get past reading it. +fn testDump(buf: []u8) ![]const u8 { + var tmp = std.testing.tmpDir(.{}); + try tmp.dir.writeFile(std.testing.io, .{ .sub_path = "d.zon", .data = ".{}" }); + var dir: [4096]u8 = undefined; + const at = dir[0..try tmp.dir.realPath(std.testing.io, &dir)]; + return std.fmt.bufPrint(buf, "Restore {s}/d.zon", .{at}); +} + test "Restore asks about unsaved text as Exit does, and restores when asked again" { const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true }); defer p.deinit(); const pane = try p.setTestFile("saved\n"); pane.file.?.saved_revision = pane.file.?.revision -% 1; // modified - try std.testing.expect(p.executeBuiltinLine(p.active, "Restore /tmp/some.dump.zon")); + var line_buf: [4200]u8 = undefined; + const line = try testDump(&line_buf); + try std.testing.expect(p.executeBuiltinLine(p.active, line)); try std.testing.expect(p.restore_req == null); try std.testing.expect(std.mem.endsWith(u8, pane.msg[0..pane.msg_len], ": Modified (Restore again to discard)")); - try std.testing.expect(p.executeBuiltinLine(p.active, "Restore /tmp/some.dump.zon")); - try std.testing.expectEqualStrings("/tmp/some.dump.zon", p.restore_req.?); + try std.testing.expect(p.executeBuiltinLine(p.active, line)); + try std.testing.expectEqualStrings(line["Restore ".len..], p.restore_req.?); +} + +test "a Restore of a dump that cannot be read says so, before the unsaved-text warning" { + const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true }); + defer p.deinit(); + const pane = try p.setTestFile("saved\n"); + pane.file.?.saved_revision = pane.file.?.revision -% 1; // modified + p.fs.no_prompt = true; + defer p.fs.no_prompt = false; + try std.testing.expect(p.executeBuiltinLine(p.active, "Restore /nope/missing.zon")); + try std.testing.expect(p.restore_req == null); + try std.testing.expectEqualStrings("Restore: /nope/missing.zon: no such file", p.fs.failure[0..p.fs.failure_len]); + // No warning spent: the Exit after it still asks. + try std.testing.expect(pane.discard_warned == null); } test "a Restore's warning is not an Exit's: each word is warned on its own" { @@ -253,7 +282,8 @@ test "a Restore's warning is not an Exit's: each word is warned on its own" { defer p.deinit(); const pane = try p.setTestFile("saved\n"); pane.file.?.saved_revision = pane.file.?.revision -% 1; // modified - try std.testing.expect(p.executeBuiltinLine(p.active, "Restore /tmp/some.dump.zon")); + var line_buf: [4200]u8 = undefined; + try std.testing.expect(p.executeBuiltinLine(p.active, try testDump(&line_buf))); try std.testing.expect(p.restore_req == null); // The Restore warned; an Exit after it has not been, and asks. try std.testing.expect(p.executeBuiltinLine(p.active, "Exit")); @@ -289,8 +319,9 @@ test "Kill stops the commands pardes typed, bare all and by name those that matc } }; p.host = .{ .vtable = &killed.vtable }; - // Nothing running: nothing to stop, and never the shell. + // Nothing running: nothing to stop, and never the shell; said. try std.testing.expectEqual(@as(usize, 0), killed.count(p, "Kill")); + try std.testing.expectEqualStrings("Kill: nothing running", p.panes[term].?.msg[0..p.panes[term].?.msg_len]); _ = exec.execute(p, term, "make -j8"); while (p.nextEffect()) |_| {} // Typed but not started yet (no C mark): not running. @@ -371,7 +402,7 @@ pub const Exec = struct { pub fn run(c: Ctx) void { // the destination pane is Look's business (it focuses what answered); // an execute deliberately leaves you where you were - _ = exec.execute(c.p, c.id, c.arg orelse return); + _ = exec.executeFrom(c.p, c.id, c.arg orelse return, c.from_body); } }; @@ -458,7 +489,10 @@ pub const Kill = struct { } if (stopped) return; if (jobless) return c.p.reportFailure(c.id, "Kill: no job to signal (its shell runs it without job control)"); - if (names.len > 0) c.p.reportError(c.id, "Kill", error.NoSuchCommand); + if (names.len > 0) + c.p.reportFailure(c.id, "Kill: no running command has that first word") + else // said, but no failure: a script's Kill has nothing left to do + c.p.setMessage(c.id, "Kill: nothing running"); } }; @@ -473,8 +507,24 @@ pub const Restore = struct { pub const scope: Scope = .session; pub const takes_arg = true; pub fn run(c: Ctx) void { - const path = c.arg orelse (c.p.last_dump orelse return); - if (path.len > c.p.restore_buf.len) return; + const path = c.arg orelse (c.p.last_dump orelse return c.p.reportFailure(c.id, "Restore: no dump yet; name one")); + if (path.len > c.p.restore_buf.len) return c.p.reportFailure(c.id, "Restore: that name is too long"); + // A dump that cannot be read is said now, and fails a ctl write: the + // host reads it only after this step, where nobody hears. First, + // so a Restore that could never happen spends no warning. + if (comptime pardes.hosted) { + const bytes = @import("fs.zig").readRestore(c.p.gpa, path, c.p.settings.dump_dir.get()) catch |err| { + var buf: [limits.host_path_cap + 64]u8 = undefined; + const why = switch (err) { + error.FileNotFound => "no such file", + error.PermissionDenied => "permission denied", + error.IsDirectory => "a directory, not a dump", + else => @errorName(err), + }; + return c.p.reportFailure(c.id, std.fmt.bufPrint(&buf, "Restore: {s}: {s}", .{ path, why }) catch "Restore: cannot read the dump"); + }; + c.p.gpa.free(bytes); + } // acme's Load adds a dump's windows to the ones there; a Restore // replaces them all, so it asks what Exit asks first. if (warnModified(c, .Restore)) return; @@ -744,7 +794,8 @@ pub const Newcol = struct { }; /// Close the pane. `Del k` gives its rows to the open pane above it and -/// `Del j` to the one below, each falling back to the other side. +/// `Del j` to the one below, each falling back to the other side. Focus on +/// it goes with its rows. pub const Del = struct { pub const takes_arg = true; pub fn run(c: Ctx) void { @@ -757,7 +808,7 @@ pub const Del = struct { else if (std.mem.eql(u8, side, "j")) below orelse above else if (side.len > 0) - return c.p.reportError(c.id, "Del k|j", error.InvalidArgument) + return c.p.reportFailure(c.id, "Del: takes k, j or nothing") else null; // Someone at the keyboard with a real choice to make is asked, on the @@ -775,8 +826,6 @@ pub const Del = struct { return; } c.p.removePane(c.id, to) catch |err| return c.p.reportError(c.id, "close", err); - // Del k|j is a direction: focus lands where the rows went. - if (to) |gainer| c.p.active = gainer; } }; @@ -834,11 +883,18 @@ pub const Tty = struct { pub const takes_arg = true; pub const plus_arg = true; pub fn run(c: Ctx) void { - exec.spawnTty(c.p, c.id); - const arg = c.arg orelse return; - const pane = c.p.panes[c.p.active] orelse return; - if (!pane.isTerminal() or pane.shell != null) return; - pane.shell = c.p.gpa.dupe(u8, arg) catch return; + const arg = std.mem.trim(u8, c.arg orelse "", " \t"); + // A shell that is not there is said, where the host would quietly + // start its fallback in its place. + if (comptime pardes.hosted) if (arg.len > 0) { + var buf: [std.fs.max_path_bytes]u8 = undefined; + if (@import("host_io.zig").Shell.find(arg, &buf) == null) { + var said: [320]u8 = undefined; + return c.p.reportFailure(c.id, std.fmt.bufPrint(&said, "Tty: no shell \"{s}\" (a name on the usual paths, or a path to one)", .{arg[0..@min(arg.len, 200)]}) catch "Tty: no such shell"); + } + }; + const pane = exec.spawnTty(c.p, c.id) orelse return; + if (arg.len > 0) pane.shell = c.p.gpa.dupe(u8, arg) catch null; } }; @@ -851,7 +907,6 @@ pub const Tty9p = struct { }; /// Fold the active pane's column into the one on its right, keeping its panes. -/// The horizontal mirror of the vertical stacking `New` does. /// Binds this terminal as a language's REPL, by the language's name as the /// syntax table has it: an exec made on the body of a file in that /// language -- a middle click, the execute key, a single word like `ls` @@ -867,7 +922,10 @@ pub const Repl = struct { pub const takes_arg = true; pub fn run(c: Ctx) void { const pane = c.pane; - if (!pane.isTerminal()) return c.p.reportFailure(c.id, "Repl: only a terminal is a REPL"); + // A terminal with its emulator -- not a document pane -- and not + // a command pane whose command, the REPL it would be, is done. + if (!pane.isTerminal() or pane.terminal == null) return c.p.reportFailure(c.id, "Repl: only a terminal is a REPL"); + if (pane.command != null and pane.command_done) return c.p.reportFailure(c.id, "Repl: its command is done; a REPL is a running program"); const arg = std.mem.trim(u8, c.arg orelse "", " \t\r\n"); var buf: [320]u8 = undefined; var idbuf: [48]u8 = undefined; @@ -879,14 +937,15 @@ pub const Repl = struct { pane.repl = null; return c.p.setMessage(c.id, "Repl: unbound"); } - const grammars = @import("grammar_manifest.zig").all; - const lang: u8 = for (grammars, 0..) |g, i| { - if (g.exts.len > 0 and std.mem.eql(u8, g.name, arg)) break @intCast(i); - } else { + const manifest = @import("grammar_manifest.zig"); + const grammars = manifest.all; + // Named as a code fence names it: `py`, `Python`, `sh`. + const named: ?u8 = if (manifest.byName(arg)) |i| if (grammars[i].exts.len > 0) @intCast(i) else null else null; + const lang: u8 = named orelse { var w = std.Io.Writer.fixed(&buf); - w.print("Repl: no language \"{s}\"; one of", .{arg[0..@min(arg.len, 32)]}) catch {}; + w.print("Repl: no language \"{s}\"; - or one of:", .{@import("Messages.zig").clip(arg, 24)}) catch {}; for (grammars) |g| if (g.exts.len > 0) w.print(" {s}", .{g.name}) catch break; - return c.p.reportFailure(c.id, w.buffered()); + return c.p.reportFailure(c.id, @import("Messages.zig").clip(w.buffered(), 256)); }; if (pane.repl) |r| if (r.lang == lang) return c.p.setMessage(c.id, std.fmt.bufPrint(&buf, "Repl: {s}", .{exec.replId(&idbuf, pane)}) catch "Repl"); @@ -907,6 +966,7 @@ pub const Repl = struct { } }; +/// The horizontal mirror of the vertical stacking `New` does. pub const Joincol = struct { pub const scope: Scope = .session; pub fn run(c: Ctx) void { diff --git a/src/colors.zig b/src/colors.zig index 8e608590..aeff7b00 100644 --- a/src/colors.zig +++ b/src/colors.zig @@ -5,6 +5,7 @@ const tagline = @import("tagline.zig"); const panes = @import("panes.zig"); const std = @import("std"); const layout = @import("layout.zig"); +const animation = @import("animation.zig"); const Color = @import("surface.zig").Color; const FontRole = @import("surface.zig").FontRole; const config = @import("config.zig"); @@ -185,15 +186,15 @@ pub const ChromeTheme = struct { pub fn interpolate(from: ChromeTheme, to: ChromeTheme, step: u16, steps: u16) ChromeTheme { var out: ChromeTheme = undefined; inline for (@typeInfo(ChromeTheme).@"struct".fields) |field| - @field(out, field.name) = layout.Animation.interpolateRgb(@field(from, field.name), @field(to, field.name), step, steps); + @field(out, field.name) = animation.interpolateRgb(@field(from, field.name), @field(to, field.name), step, steps); return out; } }; pub const ChromeAnimation = if (theme_animation) - layout.Animation.Transition(ChromeTheme) + animation.Fade(ChromeTheme) else - layout.Animation.Immediate(ChromeTheme); + animation.Immediate(ChromeTheme); pub const initial_chrome = ChromeTheme.fromTheme(&themes[0]); @@ -426,7 +427,7 @@ test "runtime theme changes animate chrome and retarget without a jump" { try std.testing.expectEqualStrings("acme", p.theme().name); try std.testing.expectEqual(midflight, p.chromeTheme().*); try std.testing.expect(p.animationActive()); - for (0..layout.Animation.transition_steps) |_| p.update(.tick); + for (0..animation.transition_steps) |_| p.update(.tick); try std.testing.expect(!p.animationActive()); try std.testing.expectEqual(ChromeTheme.fromTheme(p.theme()), p.chromeTheme().*); // Extra ticks are inert at the exact endpoint. diff --git a/src/config.zig b/src/config.zig index 78787ad2..186b29a1 100644 --- a/src/config.zig +++ b/src/config.zig @@ -1,6 +1,7 @@ const std = @import("std"); const builtin = @import("builtin"); const layout = @import("layout.zig"); +const animation = @import("animation.zig"); const limits = @import("memory.zig").limits; const pardes = @import("pardes.zig"); const builtins = @import("builtins.zig"); @@ -129,8 +130,8 @@ pub const leader_path = paths: { } if (builtins.capabilities.scene_shaders) { table.set(.Crt, "tr"); - table.set(.Ripple, "tR"); - table.set(.Glitch, "tg"); + table.set(.Shader, null); + table.set(.ShaderAnimation, null); } if (builtins.EffectCode.enabled) table.set(.EffectCode, null); if (builtins.TreeContext.enabled) table.set(.TreeContext, null); @@ -653,10 +654,92 @@ pub const Runtime = struct { tagline_percent: u8 = 100, } = .{}, - panel_transition: layout.Transition = .off, - scene_effects: layout.SceneEffect = .{}, + panel_transition: animation.Transition = .off, + /// The post chain (docs/render-pipeline.md §6), in the order it runs. + post: Post = .{}, + /// When the chain redraws on its own, past the frames it post-processes: + /// never, while the window has the focus, or always (ghostty's + /// custom-shader-animation). + shader_animation: ShaderAnimation = .on, - pub fn toggleTransition(state: *Runtime, effect: layout.Transition) void { + pub const ShaderAnimation = enum { off, on, always }; + + /// Each pass the bundled Crt or a Shadertoy file. + pub const Post = struct { + pub const max = 8; + pub const Entry = struct { + scene: ?Scene = null, + path: Text(limits.host_path_cap) = .{}, + /// A bundled pass's strength, 1 to `max_level`; 0 for a file. + level: u8 = 0, + }; + pub const max_level = 3; + /// What `on` and a bare word turn a bundled pass on at. + pub const default_level = 2; + entries: [max]Entry = @splat(.{}), + len: u8 = 0, + /// Bumped on every change: a shell compiles the chain again when it + /// moves. + generation: u32 = 0, + + pub fn list(post: *const Post) []const Entry { + return post.entries[0..post.len]; + } + + pub fn has(post: *const Post, scene: Scene) bool { + return post.level(scene) != 0; + } + + /// A bundled pass's level; 0 when it is not in the chain. + pub fn level(post: *const Post, scene: Scene) u8 { + for (post.list()) |entry| if (entry.scene == scene) return entry.level; + return 0; + } + + /// Sets a bundled pass's level: 0 takes it out, anything else puts it + /// in at the end or changes it where it is. + pub fn setLevel(post: *Post, scene: Scene, to: u8) bool { + std.debug.assert(to <= max_level); + if (to == 0) return post.set(scene, "", false); + for (post.entries[0..post.len]) |*entry| if (entry.scene == scene) { + if (entry.level != to) post.generation +%= 1; + entry.level = to; + return true; + }; + if (!post.set(scene, "", true)) return false; + post.entries[post.len - 1].level = to; + return true; + } + + /// Puts the pass in the chain, at its end, or takes it out; `want` + /// null flips it. False when the chain is full or the path too long. + pub fn set(post: *Post, scene: ?Scene, path: []const u8, want: ?bool) bool { + const at: ?usize = for (post.list(), 0..) |entry, i| { + if (entry.scene == scene and std.mem.eql(u8, entry.path.get(), path)) break i; + } else null; + const on = want orelse (at == null); + if (on == (at != null)) return true; + post.generation +%= 1; + if (at) |i| { + std.mem.copyForwards(Entry, post.entries[i .. post.len - 1], post.entries[i + 1 .. post.len]); + post.len -= 1; + return true; + } + if (post.len == max) return false; + post.entries[post.len] = .{ .scene = scene }; + if (!post.entries[post.len].path.set(path)) return false; + post.len += 1; + return true; + } + + pub fn clear(post: *Post) void { + if (post.len == 0) return; + post.len = 0; + post.generation +%= 1; + } + }; + + pub fn toggleTransition(state: *Runtime, effect: animation.Transition) void { std.debug.assert(effect != .off); state.panel_transition = if (state.panel_transition == effect) .off else effect; } @@ -733,7 +816,8 @@ pub const Runtime = struct { pub const MessageTime = enum { linger, fall, dissolve }; pub const Toggle = enum { colors, wrap, tree_context_tag_style, tag_bottom, debug, focus_tint, column_tags, syntax_bold, verbose, message_animation, ligatures }; - pub const Scene = std.meta.FieldEnum(layout.SceneEffect); + /// The bundled post pass, a Shadertoy file in shaders/post/. + pub const Scene = enum { crt }; pub const Action = union(enum) { toggle: Toggle, @@ -745,8 +829,12 @@ pub const Runtime = struct { window_blur, message_ms: MessageTime, dump_dir, - transition: layout.Transition, + transition: animation.Transition, scene: Scene, + /// A Shadertoy file into the post chain or out of it; `off` empties + /// it of files. + shader, + shader_animation, }; pub const Setting = struct { @@ -797,8 +885,8 @@ pub const Runtime = struct { .{ .word = "PanelScramble", .action = .{ .transition = .scramble }, .availability = .panel_transitions }, .{ .word = "PanelType", .action = .{ .transition = .typewriter }, .availability = .panel_transitions }, .{ .word = "Crt", .action = .{ .scene = .crt }, .availability = .scene_shaders }, - .{ .word = "Ripple", .action = .{ .scene = .ripple }, .availability = .scene_shaders }, - .{ .word = "Glitch", .action = .{ .scene = .glitch }, .availability = .scene_shaders }, + .{ .word = "Shader", .action = .shader, .availability = .scene_shaders }, + .{ .word = "ShaderAnimation", .action = .shader_animation, .availability = .scene_shaders }, }; pub fn find(name: []const u8) ?Setting { @@ -832,7 +920,7 @@ pub const Runtime = struct { @compileError("window blur must use the window-blur capability"), .transition => if (setting.availability != .panel_transitions) @compileError("panel effects must use the panel-transition capability"), - .scene => if (setting.availability != .scene_shaders) + .scene, .shader, .shader_animation => if (setting.availability != .scene_shaders) @compileError("scene effects must use the scene-shader capability"), // A toggle is plain state any shell can hold, except one for // what only some shells draw: that one exists where they do. @@ -850,7 +938,7 @@ pub const Runtime = struct { if (actionCount(.shell) != 1 or actionCount(.theme) != 1 or actionCount(.font) != 1 or actionCount(.tagline_size) != 1 or actionCount(.window_opacity) != 1 or actionCount(.window_blur) != 1) @compileError("Shell, Theme, Font, TaglineSize, WindowOpacity, and WindowBlur actions must each occur exactly once"); - for (std.enums.values(layout.Transition)) |effect| { + for (std.enums.values(animation.Transition)) |effect| { const expected: comptime_int = @intFromBool(effect != .off); if (actionCount(.{ .transition = effect }) != expected) @compileError("non-off panel transition must occur exactly once: " ++ @tagName(effect)); @@ -858,9 +946,9 @@ pub const Runtime = struct { for (std.enums.values(Scene)) |effect| { if (actionCount(.{ .scene = effect }) != 1) @compileError("scene effect must occur exactly once: " ++ @tagName(effect)); - if (@FieldType(layout.SceneEffect, @tagName(effect)) != bool) - @compileError("scene effect fields must be booleans: " ++ @tagName(effect)); } + if (actionCount(.shader) != 1 or actionCount(.shader_animation) != 1) + @compileError("Shader and ShaderAnimation must each occur exactly once"); } pub fn apply(state: *Runtime, setting: Setting, argument: ?[]const u8) bool { @@ -926,13 +1014,36 @@ pub const Runtime = struct { } }, .scene => |effect| { - const want = switchedTo(argument) catch return false; - switch (effect) { - inline else => |field| { - const value = &@field(state.scene_effects, @tagName(field)); - value.* = want orelse !value.*; - }, + // A level, 0 (off) to 3; `on` is the default level, `off` 0, + // and bare flips between the two. + const text = std.mem.trim(u8, argument orelse "", " \t\r\n"); + const to: u8 = if (text.len == 0) + (if (state.post.has(effect)) 0 else Post.default_level) + else if (std.mem.eql(u8, text, "on")) + Post.default_level + else if (std.mem.eql(u8, text, "off")) + 0 + else + std.fmt.parseInt(u8, text, 10) catch return false; + if (to > Post.max_level) return false; + return state.post.setLevel(effect, to); + }, + .shader => { + const path = std.mem.trim(u8, argument orelse return false, " \t\r\n"); + if (path.len == 0) return false; + if (std.mem.eql(u8, path, "off")) { + var i: usize = 0; + while (i < state.post.len) { + const entry = state.post.entries[i]; + if (entry.scene == null) _ = state.post.set(null, entry.path.get(), false) else i += 1; + } + return true; } + return state.post.set(null, path, null); + }, + .shader_animation => { + const text = std.mem.trim(u8, argument orelse return false, " \t\r\n"); + state.shader_animation = std.meta.stringToEnum(ShaderAnimation, text) orelse return false; }, .theme, .font => return false, } @@ -973,7 +1084,7 @@ pub const Runtime = struct { return if (text.len == 0) "(none)" else text; } - fn transitionSettingName(transition: layout.Transition) []const u8 { + fn transitionSettingName(transition: animation.Transition) []const u8 { if (transition == .off) return "off"; return findAction(.{ .transition = transition }).?.word; } @@ -1084,11 +1195,25 @@ pub const Runtime = struct { try out.print("{s} unsupported\n", .{setting.word}); continue; } - const enabled = switch (effect) { - inline else => |field| @field(state.scene_effects, @tagName(field)), + const level = state.post.level(effect); + if (level == 0) try out.print("{s} off\n", .{setting.word}) else try out.print("{s} {d}\n", .{ setting.word, level }); + }, + .shader => { + if (!setting.enabled(context.capabilities)) { + try out.print("{s} unsupported\n", .{setting.word}); + continue; + } + var files: usize = 0; + for (state.post.list()) |entry| if (entry.scene == null) { + try out.print("{s} {s}\n", .{ setting.word, entry.path.get() }); + files += 1; }; - try out.print("{s} {s}\n", .{ setting.word, onOff(enabled) }); + if (files == 0) try out.print("{s} off\n", .{setting.word}); }, + .shader_animation => if (setting.enabled(context.capabilities)) + try out.print("{s} {s}\n", .{ setting.word, @tagName(state.shader_animation) }) + else + try out.print("{s} unsupported\n", .{setting.word}), }; if (context.startup_config_path) |path| @@ -1124,20 +1249,18 @@ pub const Runtime = struct { const slide = findAction(.{ .transition = .slide }).?; const zoom = findAction(.{ .transition = .zoom }).?; try std.testing.expect(apply(&state, slide, "on")); - try std.testing.expectEqual(layout.Transition.slide, state.panel_transition); + try std.testing.expectEqual(animation.Transition.slide, state.panel_transition); try std.testing.expect(apply(&state, zoom, "off")); - try std.testing.expectEqual(layout.Transition.slide, state.panel_transition); + try std.testing.expectEqual(animation.Transition.slide, state.panel_transition); try std.testing.expect(apply(&state, slide, "on")); - try std.testing.expectEqual(layout.Transition.slide, state.panel_transition); + try std.testing.expectEqual(animation.Transition.slide, state.panel_transition); try std.testing.expect(apply(&state, slide, null)); - try std.testing.expectEqual(layout.Transition.off, state.panel_transition); + try std.testing.expectEqual(animation.Transition.off, state.panel_transition); try std.testing.expect(!apply(&state, slide, "yes")); const scene = findAction(.{ .scene = std.enums.values(Scene)[0] }).?; try std.testing.expect(apply(&state, scene, "on")); try std.testing.expect(apply(&state, scene, "on")); - switch (std.enums.values(Scene)[0]) { - inline else => |f| try std.testing.expect(@field(state.scene_effects, @tagName(f))), - } + try std.testing.expect(state.post.has(std.enums.values(Scene)[0])); } test "a toggle flips when bare and sets when told on or off" { @@ -1170,11 +1293,56 @@ pub const Runtime = struct { try std.testing.expectEqualStrings("fish", state.shell.requested.get()); try std.testing.expect(state.shell.pending); try std.testing.expect(apply(&state, find("PanelAscii").?, null)); - try std.testing.expectEqual(layout.Transition.ascii, state.panel_transition); + try std.testing.expectEqual(animation.Transition.ascii, state.panel_transition); try std.testing.expect(apply(&state, find("PanelAscii").?, null)); - try std.testing.expectEqual(layout.Transition.off, state.panel_transition); + try std.testing.expectEqual(animation.Transition.off, state.panel_transition); try std.testing.expect(apply(&state, find("Crt").?, null)); - try std.testing.expect(state.scene_effects.crt); + try std.testing.expect(state.post.has(.crt)); + } + + test "the post chain runs in the order its passes were put in, and Shader off empties it of files" { + var state: Runtime = .{}; + try std.testing.expect(apply(&state, find("Shader").?, " ~/a.glsl\n")); + try std.testing.expect(apply(&state, find("Crt").?, "on")); + try std.testing.expect(apply(&state, find("Shader").?, "/b.glsl")); + const chain = state.post.list(); + try std.testing.expectEqual(@as(usize, 3), chain.len); + try std.testing.expectEqualStrings("~/a.glsl", chain[0].path.get()); + try std.testing.expectEqual(Scene.crt, chain[1].scene.?); + try std.testing.expectEqualStrings("/b.glsl", chain[2].path.get()); + const moved = state.post.generation; + // A file named again leaves; the others keep their order. + try std.testing.expect(apply(&state, find("Shader").?, "~/a.glsl")); + try std.testing.expect(state.post.generation != moved); + try std.testing.expectEqual(Scene.crt, state.post.list()[0].scene.?); + try std.testing.expect(apply(&state, find("Shader").?, "off")); + try std.testing.expectEqual(@as(usize, 1), state.post.len); + try std.testing.expect(!apply(&state, find("Shader").?, null)); + try std.testing.expect(apply(&state, find("ShaderAnimation").?, "always")); + try std.testing.expectEqual(ShaderAnimation.always, state.shader_animation); + try std.testing.expect(!apply(&state, find("ShaderAnimation").?, "sometimes")); + } + + test "a bundled pass takes a level: on is the default, 0 and off take it out, and the old words still flip" { + var state: Runtime = .{}; + const crt = find("Crt").?; + try std.testing.expect(apply(&state, crt, "on")); + try std.testing.expectEqual(@as(u8, Post.default_level), state.post.level(.crt)); + try std.testing.expect(apply(&state, find("Shader").?, "/after.glsl")); + const moved = state.post.generation; + try std.testing.expect(apply(&state, crt, "3")); + try std.testing.expectEqual(@as(u8, 3), state.post.level(.crt)); + // A new level keeps its place in the chain. + try std.testing.expectEqual(Scene.crt, state.post.list()[0].scene.?); + try std.testing.expect(state.post.generation != moved); + try std.testing.expect(!apply(&state, crt, "4")); + try std.testing.expect(!apply(&state, crt, "loud")); + try std.testing.expect(apply(&state, crt, "0")); + try std.testing.expect(!state.post.has(.crt)); + try std.testing.expect(apply(&state, crt, null)); + try std.testing.expectEqual(@as(u8, Post.default_level), state.post.level(.crt)); + try std.testing.expect(apply(&state, crt, "off")); + try std.testing.expectEqual(@as(u8, 0), state.post.level(.crt)); } test "tagline size validates before mutating live state" { @@ -1295,6 +1463,8 @@ pub const Runtime = struct { .window_blur => "40", .message_ms => "1500", .dump_dir => "~/dumps", + .shader => "~/crt.glsl", + .shader_animation => "always", else => null, }; try std.testing.expect(apply(&state, setting, argument)); @@ -1341,10 +1511,10 @@ pub const Runtime = struct { .typewriter => "Panel transition PanelType\n", }, .scene => |effect| switch (effect) { - .crt => "Crt on\n", - .ripple => "Ripple on\n", - .glitch => "Glitch on\n", + .crt => "Crt 2\n", }, + .shader => "Shader ~/crt.glsl\n", + .shader_animation => "ShaderAnimation always\n", .theme, .font => unreachable, }; try std.testing.expect(std.mem.indexOf(u8, report, expected) != null); @@ -1412,8 +1582,6 @@ pub const Runtime = struct { try std.testing.expect(std.mem.indexOf(u8, defaults_report, "Font requested") == null); try std.testing.expect(std.mem.indexOf(u8, defaults_report, "Panel transition off\n") != null); try std.testing.expect(std.mem.indexOf(u8, defaults_report, "Crt unsupported\n") != null); - try std.testing.expect(std.mem.indexOf(u8, defaults_report, "Ripple unsupported\n") != null); - try std.testing.expect(std.mem.indexOf(u8, defaults_report, "Glitch unsupported\n") != null); try std.testing.expect(std.mem.indexOf(u8, defaults_report, "TaglineSize unsupported\n") != null); try std.testing.expect(std.mem.indexOf(u8, defaults_report, "Look hover delay: off\n") != null); try std.testing.expect(std.mem.indexOf(u8, defaults_report, "Native images: off\n") != null); diff --git a/src/detached/client.zig b/src/detached/client.zig index ba533751..8c9a2560 100644 --- a/src/detached/client.zig +++ b/src/detached/client.zig @@ -103,8 +103,12 @@ pub const Client = struct { grid: std.ArrayListUnmanaged(pardes.Cell) = .empty, cursor: ?wire.Cursor = null, pointer_shape: pardes.Surface.PointerShape = .arrow, - body_layers: [pardes.MAX_PANES]pardes.BodyLayer = @splat(.{}), - tag_layers: [pardes.MAX_TAG_LAYERS]pardes.TagLayer = @splat(.{}), + body_layers: [pardes.MAX_PANES]pardes.Layer = @splat(.{}), + tag_layers: [pardes.MAX_TAG_LAYERS]pardes.Layer = @splat(.{}), + /// The session's placed regions, as its last frame gave them. + regions: std.ArrayListUnmanaged(pardes.Region) = .empty, + /// The palette its chrome is drawn in, as its last frame gave it. + chrome: pardes.Chrome = .{}, in: std.ArrayListUnmanaged(u8) = .empty, out: std.ArrayListUnmanaged(u8) = .empty, /// Bytes of `in` belonging to the message `next` returned last. Compacted at @@ -182,6 +186,7 @@ pub const Client = struct { layer.* = .{}; } for (&c.tag_layers) |*layer| c.gpa.free(layer.cells); + c.regions.deinit(c.gpa); c.in.deinit(c.gpa); c.out.deinit(c.gpa); } @@ -319,7 +324,7 @@ pub const Client = struct { try c.reshape(f.cols, f.rows); } try f.apply(c.grid.items); - f.applyLayers(c.gpa, &c.body_layers, &c.tag_layers) catch |err| return switch (err) { + f.applyLayers(c.gpa, &c.body_layers, &c.tag_layers, &c.regions, &c.chrome) catch |err| return switch (err) { error.OutOfMemory => error.Closed, else => @as(wire.Error, @errorCast(err)), }; @@ -996,6 +1001,12 @@ test "detached session: a frontend that dies takes nothing with it" { } test "detached session: a frontend speaking another protocol is refused, loudly" { + // The protocol before this one (v7 carried one-row tags and no regions) + // and the one after. + for ([_]u16{ wire.version - 1, wire.version + 1 }) |claimed| try refusedHello(claimed); +} + +fn refusedHello(claimed: u16) !void { var h: Harness = undefined; try h.init(60, 16); defer h.deinit(); @@ -1007,7 +1018,7 @@ test "detached session: a frontend speaking another protocol is refused, loudly" defer _ = libc.close(fd); var buf: [64]u8 = undefined; const hello = try wire.encodeClient(&buf, .{ - .hello = .{ .version = wire.version + 1, .cols = 60, .rows = 16 }, + .hello = .{ .version = claimed, .cols = 60, .rows = 16 }, }); try testing.expectEqual(@as(isize, @intCast(hello.len)), libc.send(fd, hello.ptr, hello.len, nosignal)); @@ -1025,6 +1036,17 @@ test "detached session: a frontend speaking another protocol is refused, loudly" try testing.expect(!h.core.quit); } +test "detached frontend: a session speaking another protocol is not attached to" { + for ([_]u16{ wire.version - 1, wire.version + 1 }) |claimed| { + var c: Client = .{ .gpa = testing.allocator }; + defer c.deinit(); + var buf: [64]u8 = undefined; + try c.in.appendSlice(testing.allocator, try wire.encodeServer(&buf, .{ .welcome = .{ .version = claimed, .slot = 0, .cols = 60, .rows = 16 } })); + try testing.expectError(error.Ungreeted, c.next()); + try testing.expect(!c.attached()); + } +} + test "detached session: a peer that sends garbage is dropped, not obeyed" { var h: Harness = undefined; try h.init(60, 16); @@ -1282,7 +1304,7 @@ fn pumpUntilNotice(h: *Harness, c: *Client, want: []const u8) !bool { try c.wait(5); while (try c.next()) |_| {} for (&c.tag_layers) |*layer| { - if (layer.cols == 0 or layer.kind != .notice) continue; + if (layer.rows == 0 or layer.kind != .notice) continue; var n: usize = 0; for (layer.cells[0..layer.cols]) |cell| { const g = cell.grapheme(); diff --git a/src/detached/server.zig b/src/detached/server.zig index 5bf2384b..5374bf73 100644 --- a/src/detached/server.zig +++ b/src/detached/server.zig @@ -150,6 +150,8 @@ pub const Session = struct { worker_gpa: std.mem.Allocator, io: std.Io, core: *pardes.Pardes, + /// PARDES_TEST_CLOCK's virtual time (host_io.testClock). + test_clock: ?u64 = null, listener: c_int = -1, path_buf: [sun_path_len]u8 = undefined, path_len: usize = 0, @@ -355,8 +357,14 @@ pub const Session = struct { return @ptrCast(@alignCast(ctx.?)); } + fn clockNow(ctx: ?*anyopaque) u64 { + const s = of(ctx); + return s.test_clock orelse host_io.monotonicNs(); + } + const vtable: host_io.Host.VTable = .{ .wait_input = waitInput, + .now = clockNow, .present = present, .poll_frame = pollFrame, .spawn = spawn, @@ -484,7 +492,7 @@ pub const Session = struct { s.ninep, ) catch |err| return s.core.reportError(pane, "shell", err); const command = if (s.core.panes[pane]) |pn| pn.command != null else false; - s.ptys[pane] = .{ .fd = child.file.handle, .pid = child.pid, .cmd = .{ .watched = command and host_io.watchExit(child.pid) } }; + s.ptys[pane] = .{ .fd = child.file.handle, .pid = child.pid, .cmd = .{ .watched = command and host_io.watchExit(child.pid), .fd = child.file.handle } }; setNonblock(child.file.handle); var lbuf: [pardes.memory.limits.host_path_cap + 1]u8 = undefined; if (host_io.shellCwd(child.pid, &lbuf)) |wd| s.core.setCwd(pane, wd); @@ -697,11 +705,7 @@ pub const Session = struct { // A command's pty stays open until its child has exited: closing // it would hang up one that runs on without it. // Its exit, if it came first, is told now its output is in. - if (pt.cmd.watched) { - pt.cmd.eof = true; - s.core.update(.{ .eof = .{ .pane = pane } }); - return s.takeExits(); - } + if (pt.cmd.watched) return host_io.commandEof(s.core, &s.ptys, pane, s, closeWatched); // Unwatched, a command's exit is read here, as its end. const unwatched = if (s.core.panes[pane]) |pn| pn.command != null else false; var status: ?u8 = null; @@ -715,21 +719,13 @@ pub const Session = struct { s.core.update(.{ .eof = .{ .pane = pane } }); } - /// Each watched child that exited: reaped, the core told, and its pty - /// closed if its end of file came first. + /// The command panes' exits, told once their output is in (host_io). fn takeExits(s: *Session) void { - while (host_io.takeExited()) |pid| for (&s.ptys) |*pt| { - if (pt.fd < 0 or pt.pid != pid or pt.cmd.exited) continue; - pt.cmd.exit((host_io.reapExited(pid) orelse break).status); - pt.pid = 0; // reaped: no signal or retire may reach whoever gets it next - break; - }; - for (&s.ptys, 0..) |*pt, id| { - if (pt.fd < 0 or !pt.cmd.due()) continue; - pt.cmd.told = true; - s.core.update(.{ .exited = .{ .pane = @intCast(id), .status = pt.cmd.status } }); - if (pt.cmd.eof) s.closePty(@intCast(id)); - } + host_io.takeExits(s.core, &s.ptys, s, closeWatched); + } + + fn closeWatched(s: *Session, id: usize) void { + s.closePty(@intCast(id)); } fn harvest(s: *Session) void { @@ -779,7 +775,7 @@ pub const Session = struct { fn sendFrame(s: *Session, c: *Client, surface: *const pardes.Surface) void { const cells = surface.cells; - const want = wire.frameBound(surface.cols, surface.rows) + wire.layersBound(&surface.body_layers, &surface.tag_layers); + const want = wire.frameBound(surface.cols, surface.rows) + wire.layersBound(&surface.body_layers, &surface.tag_layers, surface.regionList()); s.scratch.ensureTotalCapacity(s.gpa, want) catch return s.close(c, .oom); const prev: []const pardes.Cell = if (c.need_full or c.mirror.items.len != cells.len) &.{} @@ -799,6 +795,8 @@ pub const Session = struct { prev, &surface.body_layers, &surface.tag_layers, + surface.regionList(), + surface.chrome, ) catch |err| { log.debug("frame {d}x{d} not encodable: {t}", .{ surface.cols, surface.rows, err }); return; @@ -879,8 +877,9 @@ pub const Session = struct { pardes.turn.rest(); nap(if (timeout_ms == 0) 16 else timeout_ms); pardes.turn.wake(); - // An animating frame's wait is the frame: tick it. - if (timeout_ms != 0) s.core.update(.tick); + if (timeout_ms != 0) if (s.test_clock) |*virtual| { + virtual.* = @max(virtual.*, s.core.nextWake() orelse virtual.*); + }; return; } var timeout: c_int = if (timeout_ms == 0) -1 else @intCast(@min(timeout_ms, std.math.maxInt(c_int))); @@ -890,9 +889,10 @@ pub const Session = struct { const ready = libc.poll(&fds, @intCast(n), timeout); pardes.turn.wake(); if (ready > 0) s.dispatch(fds[0..n], src[0..n]); - // Animating, the frame's time is up: advance it. There is no other - // tick in a detached session, and without it an animation never ends. - if (timeout_ms != 0 and monotonicMs() -| now >= timeout_ms) s.core.update(.tick); + // The core's wake ran out; the pump advances it from `now`. + if (timeout_ms != 0 and monotonicMs() -| now >= timeout_ms) if (s.test_clock) |*virtual| { + virtual.* = @max(virtual.*, s.core.nextWake() orelse virtual.*); + }; _ = s.drainCompletions(true); s.takeExits(); s.expire(monotonicMs()); @@ -1181,6 +1181,17 @@ pub const Session = struct { } }; +/// SIGTERM, SIGINT or SIGHUP: quit as Exit does, through the loop, so its +/// sockets are unlinked on the way out rather than left for the next +/// session to trip on. The handler only sets the flag and wakes the loop. +var quit_signalled = std.atomic.Value(bool).init(false); +var quit_wake: c_int = -1; + +fn onQuitSignal(_: std.posix.SIG) callconv(.c) void { + quit_signalled.store(true, .release); + if (quit_wake >= 0) _ = libc.send(quit_wake, "q", 1, nosignal); +} + pub fn run(init: std.process.Init, opts: pardes.Options, name: []const u8) !void { const gpa = init.gpa; const allocs = pardes.memory.init(gpa); @@ -1213,6 +1224,7 @@ pub fn run(init: std.process.Init, opts: pardes.Options, name: []const u8) !void .cols = options.cols, .rows = options.rows, .prompt_rcs = host_io.Shell.prepare(), + .test_clock = host_io.testClock(), }; defer session.core.deinit(); defer session.deinit(); @@ -1231,7 +1243,11 @@ pub fn run(init: std.process.Init, opts: pardes.Options, name: []const u8) !void core.host = h; while (core.nextEffect()) |effect| core.perform(effect); session.in_loop = true; - while (!session.core.quit) { + quit_wake = session.mailbox.wake[1]; + const on_quit: std.posix.Sigaction = .{ .handler = .{ .handler = onQuitSignal }, .mask = std.posix.sigemptyset(), .flags = 0 }; + for ([_]std.posix.SIG{ .HUP, .INT, .TERM }) |sig| std.posix.sigaction(sig, &on_quit, null); + defer quit_wake = -1; + while (!session.core.quit and !quit_signalled.load(.acquire)) { pardes.turn.restoreSettled(); try session.core.pump(h); if (session.core.quit) break; diff --git a/src/detached/wire.zig b/src/detached/wire.zig index 0854ce3e..b1b81eda 100644 --- a/src/detached/wire.zig +++ b/src/detached/wire.zig @@ -7,7 +7,9 @@ const limits = @import("../memory.zig").limits; /// 7: tag layers gained the `.notice` kind, so a frame can carry a tag value /// an older frontend would reject mid-session. The greeting is where that has /// to be refused, which is what this number is for. -pub const version: u16 = 7; +/// 8: one layer type: a tag band carries all its rows (not a layer per +/// line), and a frame carries the core's placed regions after its layers. +pub const version: u16 = 8; pub const Error = error{ Truncated, Overlong, BadTag, BadValue, Trailing, NoSpace }; @@ -167,7 +169,9 @@ pub const Frame = struct { nruns: u32, runs: []const u8, - pub fn applyLayers(f: Frame, gpa: std.mem.Allocator, layers: *[pardes.MAX_PANES]pardes.BodyLayer, tags: *[pardes.MAX_TAG_LAYERS]pardes.TagLayer) !void { + pub fn applyLayers(f: Frame, gpa: std.mem.Allocator, layers: *[pardes.MAX_PANES]pardes.Layer, tags: *[pardes.MAX_TAG_LAYERS]pardes.Layer, regions: *std.ArrayListUnmanaged(pardes.Region), chrome: *pardes.Chrome) !void { + regions.clearRetainingCapacity(); + chrome.* = .{}; for (layers) |*layer| { gpa.free(layer.cells); layer.* = .{}; @@ -185,19 +189,22 @@ pub const Frame = struct { gpa.free(layer.cells); layer.* = .{}; } + regions.clearRetainingCapacity(); + chrome.* = .{}; } if (f.layers.len == 0) return; var r: Reader = .init(f.layers); const count = try r.getU16(); if (count > layers.len) return error.Overlong; for (layers[0..count]) |*layer| { - layer.pane = try r.getU16(); + layer.kind = .body; + layer.id = try r.getU16(); layer.serial = try r.getU32(); layer.viewport = .{ .x = try r.getU16(), .y = try r.getU16(), .w = try r.getU16(), .h = try r.getU16() }; layer.cols = try r.getU16(); layer.rows = try r.getU16(); layer.context_rows = try r.getU16(); - if (layer.pane >= pardes.MAX_PANES or layer.cols == 0 or layer.cols > f.cols or + if (layer.id >= pardes.MAX_PANES or layer.cols == 0 or layer.cols > f.cols or layer.rows == 0 or layer.rows > 2 * max_rows or layer.context_rows > layer.rows or layer.context_rows > limits.wrap_rows or layer.viewport.x > f.cols or layer.viewport.w > f.cols - layer.viewport.x or layer.viewport.y > f.rows or layer.viewport.h > f.rows - layer.viewport.y) return error.BadValue; @@ -217,19 +224,49 @@ pub const Frame = struct { layer.serial = try r.getU32(); layer.viewport = .{ .x = try r.getU16(), .y = try r.getU16(), .w = try r.getU16(), .h = try r.getU16() }; layer.cols = try r.getU16(); + layer.rows = try r.getU16(); for (&layer.bg) |*channel| channel.* = try r.getByte(); - if (layer.cols == 0 or layer.viewport.w == 0 or layer.viewport.h != 1 or + if (layer.cols == 0 or layer.viewport.w == 0 or layer.rows == 0 or layer.rows > pardes.MAX_TAG_ROWS or + layer.viewport.h != layer.rows or layer.viewport.x > f.cols or layer.viewport.w > f.cols - layer.viewport.x or - layer.viewport.y >= f.rows or (switch (layer.kind) { + layer.viewport.y >= f.rows or layer.viewport.h > f.rows - layer.viewport.y or (switch (layer.kind) { .workspace => layer.id != 0, .column => layer.id >= pardes.MAX_COLS, .pane, .notice => layer.id >= pardes.MAX_PANES, + .body => true, })) return error.BadValue; - const cursor = try getCursor(&r, layer.cols, 1); - layer.cursor = if (cursor) |c| .{ .col = c.x, .bar = c.bar } else null; - layer.cells = try gpa.alloc(pardes.Cell, layer.cols); + const cursor = try getCursor(&r, layer.cols, layer.rows); + layer.cursor = if (cursor) |c| .{ .x = c.x, .y = c.y, .bar = c.bar } else null; + layer.cells = try gpa.alloc(pardes.Cell, @as(usize, layer.cols) * layer.rows); for (layer.cells) |*cell| cell.* = try decodeCell(&r); } + const region_count = try r.getU16(); + if (region_count > pardes.MAX_REGIONS) return error.Overlong; + try regions.ensureTotalCapacity(gpa, region_count); + for (0..region_count) |_| { + var region: pardes.Region = .{ .kind = try r.getTag(pardes.Region.Kind), .rect = undefined }; + region.owner = try r.getByte(); + region.serial = try r.getU32(); + region.rect = .{ .x = try r.getU16(), .y = try r.getU16(), .w = try r.getU16(), .h = try r.getU16() }; + region.active = try r.getBool(); + region.thumb_y = try r.getU16(); + region.thumb_h = try r.getU16(); + region.notice = try r.getByte(); + region.clip = try r.getU16(); + if (region.rect.x > f.cols or region.rect.w > f.cols - region.rect.x or + region.rect.y > f.rows or region.rect.h > f.rows - region.rect.y or + region.clip > region.rect.w or region.thumb_y > region.rect.h or region.thumb_h > region.rect.h - region.thumb_y) return error.BadValue; + regions.appendAssumeCapacity(region); + } + inline for (@typeInfo(pardes.Chrome).@"struct".fields) |field| { + const rgb = &@field(chrome, field.name); + if (field.type == ?[3]u8) { + if (try r.getBool()) { + rgb.* = .{ 0, 0, 0 }; + for (&rgb.*.?) |*channel| channel.* = try r.getByte(); + } + } else for (rgb) |*channel| channel.* = try r.getByte(); + } try r.end(); } @@ -672,21 +709,26 @@ pub fn encodeFramePointer( cells: []const pardes.Cell, prev: []const pardes.Cell, ) Error![]const u8 { - return encodeFrameLayers(out, cols, rows, cursor, pointer_shape, cells, prev, &.{}, &.{}); + return encodeFrameLayers(out, cols, rows, cursor, pointer_shape, cells, prev, &.{}, &.{}, &.{}, .{}); } -pub fn layersBound(layers: []const pardes.BodyLayer, tags: []const pardes.TagLayer) usize { - var n: usize = 4; +pub fn layersBound(layers: []const pardes.Layer, tags: []const pardes.Layer, regions: []const pardes.Region) usize { + var n: usize = 6; for (layers) |layer| if (layer.rows != 0) { n += 26 + layer.context_rows + layer.cells.len * cell_max; }; - for (tags) |layer| if (layer.cols != 0) { - n += 26 + layer.cells.len * cell_max; + for (tags) |layer| if (layer.rows != 0) { + n += 28 + layer.cells.len * cell_max; }; - return n; + return n + regions.len * region_len + chrome_len; } -pub fn encodeFrameLayers(out: []u8, cols: u16, rows: u16, cursor: ?Cursor, pointer_shape: pardes.Surface.PointerShape, cells: []const pardes.Cell, prev: []const pardes.Cell, layers: []const pardes.BodyLayer, tags: []const pardes.TagLayer) Error![]const u8 { +const region_len = 1 + 1 + 4 + 8 + 1 + 2 + 2 + 1 + 2; +/// The palette: each colour three bytes, a theme's optional ones a flag +/// before them. +const chrome_len = @typeInfo(pardes.Chrome).@"struct".fields.len * 4; + +pub fn encodeFrameLayers(out: []u8, cols: u16, rows: u16, cursor: ?Cursor, pointer_shape: pardes.Surface.PointerShape, cells: []const pardes.Cell, prev: []const pardes.Cell, layers: []const pardes.Layer, tags: []const pardes.Layer, regions: []const pardes.Region, chrome: pardes.Chrome) Error![]const u8 { // The protocol's ceiling, enforced by the ENCODER too, and BEFORE the // assert below so a caller can be told rather than tripped. `max_payload` // is derived from these two, so a larger grid is a frame this decoder @@ -708,7 +750,7 @@ pub fn encodeFrameLayers(out: []u8, cols: u16, rows: u16, cursor: ?Cursor, point const layers_len_at = w.n; try w.putU32(0); const layers_start = w.n; - if (layers.len != 0 or tags.len != 0) { + if (layers.len != 0 or tags.len != 0 or regions.len != 0) { var count: u16 = 0; for (layers) |layer| if (layer.rows != 0) { count += 1; @@ -717,7 +759,7 @@ pub fn encodeFrameLayers(out: []u8, cols: u16, rows: u16, cursor: ?Cursor, point for (layers) |layer| { if (layer.rows == 0) continue; if (layer.context_rows > limits.wrap_rows or layer.context_rows > layer.rows) return error.BadValue; - try w.putU16(layer.pane); + try w.putU16(layer.id); try w.putU32(layer.serial); try w.putU16(layer.viewport.x); try w.putU16(layer.viewport.y); @@ -731,13 +773,13 @@ pub fn encodeFrameLayers(out: []u8, cols: u16, rows: u16, cursor: ?Cursor, point for (layer.cells) |*cell| try putCell(&w, cell); } var tag_count: u16 = 0; - for (tags) |layer| if (layer.cols != 0) { + for (tags) |layer| if (layer.rows != 0) { tag_count += 1; }; try w.putU16(tag_count); for (tags) |layer| { - if (layer.cols == 0) continue; - if (layer.cells.len != layer.cols) return error.BadValue; + if (layer.rows == 0) continue; + if (layer.cells.len != @as(usize, layer.cols) * layer.rows) return error.BadValue; try w.putByte(@intFromEnum(layer.kind)); try w.putU16(layer.id); try w.putU32(layer.serial); @@ -746,10 +788,33 @@ pub fn encodeFrameLayers(out: []u8, cols: u16, rows: u16, cursor: ?Cursor, point try w.putU16(layer.viewport.w); try w.putU16(layer.viewport.h); try w.putU16(layer.cols); + try w.putU16(layer.rows); for (layer.bg) |channel| try w.putByte(channel); - try putCursor(&w, if (layer.cursor) |c| .{ .x = c.col, .y = 0, .bar = c.bar } else null, layer.cols, 1); + try putCursor(&w, if (layer.cursor) |c| .{ .x = c.x, .y = c.y, .bar = c.bar } else null, layer.cols, layer.rows); for (layer.cells) |*cell| try putCell(&w, cell); } + try w.putU16(@intCast(regions.len)); + for (regions) |region| { + try w.putByte(@intFromEnum(region.kind)); + try w.putByte(region.owner); + try w.putU32(region.serial); + try w.putU16(region.rect.x); + try w.putU16(region.rect.y); + try w.putU16(region.rect.w); + try w.putU16(region.rect.h); + try w.putBool(region.active); + try w.putU16(region.thumb_y); + try w.putU16(region.thumb_h); + try w.putByte(region.notice); + try w.putU16(region.clip); + } + inline for (@typeInfo(pardes.Chrome).@"struct".fields) |field| { + const rgb = @field(chrome, field.name); + if (field.type == ?[3]u8) { + try w.putBool(rgb != null); + if (rgb) |value| for (value) |channel| try w.putByte(channel); + } else for (rgb) |channel| try w.putByte(channel); + } } std.mem.writeInt(u32, w.buf[layers_len_at..][0..4], @intCast(w.n - layers_start), .little); const nruns_at = w.n; @@ -1820,22 +1885,29 @@ test "detached wire carries compact body rows and exact pointer metrics" { var cells: [8]pardes.Cell = @splat(.{}); var logical: [12]pardes.Cell = @splat(.{}); logical[10] = .{ .text = "z".* ++ @as([6]u8, @splat(0)), .len = 1, .default = false }; - var layer: pardes.BodyLayer = .{ .pane = 0, .serial = 42, .viewport = .{ .x = 0, .y = 0, .w = 2, .h = 4 }, .cols = 2, .rows = 6, .context_rows = 2, .cells = &logical, .cursor = .{ .x = 0, .y = 5, .bar = true } }; + var layer: pardes.Layer = .{ .id = 0, .serial = 42, .viewport = .{ .x = 0, .y = 0, .w = 2, .h = 4 }, .cols = 2, .rows = 6, .context_rows = 2, .cells = &logical, .cursor = .{ .x = 0, .y = 5, .bar = true } }; layer.context_separators.set(0); var tag_cells: [3]pardes.Cell = @splat(.{}); tag_cells[2] = logical[10]; - const tag: pardes.TagLayer = .{ .kind = .column, .id = 1, .viewport = .{ .x = 0, .y = 0, .w = 2, .h = 1 }, .cols = 3, .bg = .{ 11, 22, 33 }, .cells = &tag_cells, .cursor = .{ .col = 2, .bar = true } }; - const out = try gpa.alloc(u8, frameBound(2, 4) + layersBound(&.{layer}, &.{tag})); + const tag: pardes.Layer = .{ .kind = .column, .id = 1, .viewport = .{ .x = 0, .y = 0, .w = 2, .h = 1 }, .cols = 3, .rows = 1, .bg = .{ 11, 22, 33 }, .cells = &tag_cells, .cursor = .{ .x = 2, .y = 0, .bar = true } }; + const placed = [_]pardes.Region{.{ .kind = .rail, .owner = 3, .serial = 42, .rect = .{ .x = 0, .y = 1, .w = 2, .h = 3 }, .active = true, .thumb_y = 1, .thumb_h = 2, .clip = 1 }}; + const out = try gpa.alloc(u8, frameBound(2, 4) + layersBound(&.{layer}, &.{tag}, &placed)); defer gpa.free(out); - const encoded = try encodeFrameLayers(out, 2, 4, null, .link, &cells, &cells, &.{layer}, &.{tag}); + const palette: pardes.Chrome = .{ .page = .{ 1, 2, 3 }, .border = .{ 4, 5, 6 }, .tag_focus_bg = .{ 7, 8, 9 }, .scroll_thumb = .{ 10, 11, 12 } }; + const encoded = try encodeFrameLayers(out, 2, 4, null, .link, &cells, &cells, &.{layer}, &.{tag}, &placed, palette); const packet = (try framed(encoded)).?; const frame = (try decodeServer(packet.tag, packet.payload)).frame; - var decoded: [pardes.MAX_PANES]pardes.BodyLayer = @splat(.{}); - var tags: [pardes.MAX_TAG_LAYERS]pardes.TagLayer = @splat(.{}); + var decoded: [pardes.MAX_PANES]pardes.Layer = @splat(.{}); + var tags: [pardes.MAX_TAG_LAYERS]pardes.Layer = @splat(.{}); defer for (&tags) |*item| gpa.free(item.cells); defer for (&decoded) |*item| gpa.free(item.cells); try frame.apply(&cells); - try frame.applyLayers(gpa, &decoded, &tags); + var regions: std.ArrayListUnmanaged(pardes.Region) = .empty; + defer regions.deinit(gpa); + var chrome: pardes.Chrome = .{}; + try frame.applyLayers(gpa, &decoded, &tags, ®ions, &chrome); + try std.testing.expectEqualDeep(placed[0..], regions.items); + try std.testing.expectEqualDeep(palette, chrome); try std.testing.expectEqual(@as(u16, 6), decoded[0].rows); try std.testing.expect(decoded[0].context_separators.isSet(0)); try std.testing.expect(!decoded[0].context_separators.isSet(1)); @@ -1847,10 +1919,10 @@ test "detached wire carries compact body rows and exact pointer metrics" { try std.testing.expectEqual(tag.id, tags[0].id); try std.testing.expectEqual(tag.bg, tags[0].bg); try std.testing.expectEqual(tag.cols, tags[0].cols); - try std.testing.expectEqual(@as(u16, 2), tags[0].cursor.?.col); + try std.testing.expectEqual(@as(u16, 2), tags[0].cursor.?.x); try std.testing.expectEqualStrings("z", tags[0].cells[2].grapheme()); - const pointer = layer.hitAt(4, 27, 8, 16, 6, 8).?; - const tag_pointer = tag.hitAt(11, 8, 8, 16, 4, 8).?; + const pointer = layer.bodyHit(4, 27, 8, 16, 6, 8).?; + const tag_pointer = tag.tagHit(11, 8, 8, 16, 4, 8).?; const message: ClientMsg = .{ .event = .{ .mouse = .{ .col = 0, .row = 1, .button = .left, .kind = .press, .body_hit = pointer, .tag_hit = tag_pointer } } }; var mouse_bytes: [256]u8 = undefined; const mouse_encoded = try encodeClient(&mouse_bytes, message); @@ -1861,19 +1933,20 @@ test "detached wire carries compact body rows and exact pointer metrics" { try std.testing.expect(mouse_encoded.len <= clientBound(message)); var truncated = frame; truncated.layers = frame.layers[0 .. frame.layers.len - 1]; - try std.testing.expectError(error.Truncated, truncated.applyLayers(gpa, &decoded, &tags)); + try std.testing.expectError(error.Truncated, truncated.applyLayers(gpa, &decoded, &tags, ®ions, &chrome)); for (decoded) |item| { try std.testing.expectEqual(@as(u16, 0), item.rows); try std.testing.expectEqual(@as(usize, 0), item.cells.len); try std.testing.expectEqual(@as(usize, 0), item.context_separators.count()); } for (tags) |item| { - try std.testing.expectEqual(@as(u16, 0), item.cols); + try std.testing.expectEqual(@as(u16, 0), item.rows); try std.testing.expectEqual(@as(usize, 0), item.cells.len); } + try std.testing.expectEqual(@as(usize, 0), regions.items.len); const no_layers = try encodeFramePointer(out, 2, 4, null, .arrow, &cells, &cells); const cleared_packet = (try framed(no_layers)).?; const cleared = (try decodeServer(cleared_packet.tag, cleared_packet.payload)).frame; - try cleared.applyLayers(gpa, &decoded, &tags); + try cleared.applyLayers(gpa, &decoded, &tags, ®ions, &chrome); try std.testing.expectEqual(@as(u16, 0), decoded[0].rows); } diff --git a/src/draw.zig b/src/draw.zig new file mode 100644 index 00000000..2d757635 --- /dev/null +++ b/src/draw.zig @@ -0,0 +1,1264 @@ +//! The frame: how the core builds the canonical Surface every shell draws. +//! `render` is the whole order, top to bottom: the page, each pane (its +//! grip, tag and body, and the body layer of its compact rows), the notice +//! chips, the workspace and column tags, the tag layers, drag overlays, the +//! debug box, then the presentation's tracks and the character effects. +const std = @import("std"); +const vaxis = @import("vaxis"); +const pardes = @import("pardes.zig"); +const layout = @import("layout.zig"); +const animation = @import("animation.zig"); +const config = @import("config.zig"); +const panes = @import("panes.zig"); +const modal = @import("modal.zig"); +const tracy = @import("tracy.zig"); +const colors = @import("colors.zig"); +const edit = @import("edit.zig"); +const mouse = @import("mouse.zig"); +const tagline = @import("tagline.zig"); +const body_layer = @import("body_layer.zig"); +const Messages = @import("Messages.zig"); +const Color = @import("surface.zig").Color; +const FontRole = @import("surface.zig").FontRole; +const CellStyle = @import("surface.zig").CellStyle; +const Cell = @import("surface.zig").Cell; +const Surface = @import("surface.zig").Surface; +const Pardes = pardes.Pardes; +const Pane = panes.Pane; +const Text = panes.Text; +const Rect = layout.Rect; +const Region = @import("surface.zig").Region; +const TagKind = @import("Layer.zig").Kind; +const pdf_enabled = panes.Pdf.enabled; +const wordBoundsAtCol = pardes.wordBoundsAtCol; +const BOX_H = pardes.BOX_H; +const TAG_GAP = pardes.TAG_GAP; +const TAG_TEXT_INSET = pardes.TAG_TEXT_INSET; +const TOPBAR_H = pardes.TOPBAR_H; +const COLBAR_H = pardes.COLBAR_H; +const MAX_PANES = pardes.MAX_PANES; +const MAX_COLS = pardes.MAX_COLS; +const MAX_TAG_ROWS = pardes.MAX_TAG_ROWS; +const NOTICE_LAYER_BASE = pardes.NOTICE_LAYER_BASE; + +/// Where every part of the frame goes, decided once before anything is +/// painted: the page; each pane's grip, tag, body, rail (with its thumb) +/// and notice chips; each column's grip and tag; the workspace tag. The +/// painters below and every shell read these rectangles. +pub fn place(p: *Pardes, s: *Surface) void { + s.nregions = 0; + s.addRegion(.{ .kind = .page, .rect = .{ .x = 0, .y = 0, .w = s.cols, .h = s.rows } }); + for (&p.panes, 0..) |*slot, id| { + const pane = slot.* orelse continue; + Messages.collectNotices(p, pane, p.rects[id], id); + const r = p.rects[id]; + if (r.w <= config.GUTTER or r.h == 0) continue; + const owner: u8 = @intCast(id); + const active = id == p.active; + const tag_y = p.tagTop(pane, r); + const body_y = p.bodyTop(pane, r); + s.addRegion(.{ .kind = .grip, .owner = owner, .serial = pane.serial, .active = active, .rect = .{ .x = r.x, .y = tag_y, .w = config.GUTTER, .h = pane.tag_rows } }); + s.addRegion(.{ .kind = .tag, .owner = owner, .serial = pane.serial, .active = active, .rect = .{ .x = r.x + config.GUTTER, .y = tag_y, .w = r.w - config.GUTTER, .h = pane.tag_rows } }); + // A folded pane is its tag rows and nothing else. + if (pane.collapsed) continue; + const body_h = r.h -| pane.tag_rows; + s.addRegion(.{ .kind = .body, .owner = owner, .serial = pane.serial, .active = active, .rect = .{ .x = r.x + config.GUTTER, .y = body_y, .w = r.w - config.GUTTER, .h = body_h } }); + var rail: Region = .{ .kind = .rail, .owner = owner, .serial = pane.serial, .active = active, .rect = .{ .x = r.x, .y = body_y, .w = config.GUTTER, .h = body_h } }; + // An image's rail has no thumb; a native PDF's is measured as its + // pages are placed (Pdf.draw); every other pane's is here. + if (pane.image == null and body_h > 0) { + const sb: struct { total: usize, offset: usize, len: usize } = if (pane.file) |*f| .{ + .total = panes.File.nlines(p.gpa, f), + .offset = f.scroll, + .len = pane.rows, + } else if (pane.pdfPage()) |page| .{ + .total = if (comptime pdf_enabled) pane.pdf.?.page_count else 1, + .offset = page, + .len = 1, + } else blk: { + const gsb = panes.Terminal.scrollbar(pane); + break :blk .{ .total = gsb.total, .offset = gsb.offset, .len = gsb.len }; + }; + const track_h: usize = body_h; + const total = if (sb.total == 0) 1 else sb.total; + const len = @max(1, (track_h * @max(1, sb.len)) / total); + const pos = (track_h * sb.offset) / total; + rail.thumb_y = @intCast(@min(pos, track_h)); + rail.thumb_h = @intCast(@min(len, track_h - rail.thumb_y)); + } + s.addRegion(rail); + // Each notice a chip at the right edge, one to a row in the order + // collectNotices chose, as wide as its own message and no wider, so + // the text beneath the rest of the row keeps reading as the file. + if (r.h <= pane.tag_rows) continue; + const tx = r.x + config.GUTTER; + const tw = r.w - config.GUTTER; + var leader_buf: [16]u8 = undefined; + for (0..pane.notices.len) |i| { + const text = Messages.noticeText(p, pane, i, &leader_buf); + const chip = Messages.noticeCols(p, text, tw); + if (chip == 0) continue; + pane.notices.left[i] = tx + tw - chip; + s.addRegion(.{ .kind = .notice, .owner = owner, .serial = pane.serial, .active = active, .notice = @intCast(i), .rect = .{ .x = tx + tw - chip, .y = body_y + @as(u16, pane.notices.row[i]), .w = chip, .h = BOX_H } }); + } + } + const column_rows = p.columnBarHeight(); + if (column_rows > 0) for (0..p.ncol) |c| { + if (p.col_w[c] == 0) continue; + const active = if (layout.findPane(p, p.active)) |found| found.col == c else false; + const inset = @min(TAG_TEXT_INSET, p.col_w[c]); + s.addRegion(.{ .kind = .column_grip, .owner = @intCast(c), .serial = p.col_serial[c], .active = active, .rect = .{ .x = p.col_x[c], .y = p.topBarHeight(), .w = @min(config.GUTTER, p.col_w[c]), .h = column_rows } }); + s.addRegion(.{ .kind = .column_tag, .owner = @intCast(c), .serial = p.col_serial[c], .active = active, .rect = .{ .x = p.col_x[c] + inset, .y = p.topBarHeight(), .w = p.col_w[c] - inset, .h = column_rows } }); + }; + const active_col = if (layout.findPane(p, p.active)) |found| found.col else null; + for (0..p.ncol) |c| { + if (p.col_w[c] == 0) continue; + s.addRegion(.{ .kind = .column, .owner = @intCast(c), .serial = p.col_serial[c], .active = active_col == c, .rect = .{ .x = p.col_x[c], .y = p.topBarHeight(), .w = p.col_w[c], .h = s.rows -| p.topBarHeight() } }); + } + if (p.settings.workspace_tag) + s.addRegion(.{ .kind = .workspace_tag, .rect = .{ .x = 0, .y = 0, .w = s.cols, .h = p.topBarHeight() } }); + // A column carried to the window's right edge shows where it lands as a + // rail in the last cell: the layers under it stop a cell short. + if (p.drag == .column_move) rail: { + const d = p.drag.column_move; + const source = layout.columnBySerial(p, d.serial) orelse break :rail; + const edge: u16 = switch (layout.columnDrop(p, source, d.cur_x, d.grab)) { + .stay => break :rail, + .reorder => |target| if (target < source) p.col_x[target] else p.col_x[target] + p.col_w[target], + .edge => |x| x, + }; + if (edge != s.cols) break :rail; + for (s.regions[0..s.nregions]) |*region| switch (region.kind) { + .body, .tag, .notice, .column_tag => if (region.rect.x + region.rect.w == s.cols) { + region.clip = 1; + }, + else => {}, + }; + } +} + +pub fn render(p: *Pardes, arena: std.mem.Allocator) !*Surface { + panes.File.refreshHighlights(p); + const s = &p.surface; + const ncells = @as(usize, p.screen_w) * p.screen_h; + if (s.cells.len != ncells) { + const cells = try p.gpa.alloc(Cell, ncells); + p.gpa.free(s.cells); + s.cells = cells; + } + s.cols = p.screen_w; + s.rows = p.screen_h; + s.cursor = null; + s.pointer_shape = .arrow; + if (comptime pdf_enabled) if (p.pdf_hover_preview) |preview| { + if (preview.probe.link != null and preview.pane < p.panes.len) { + if (p.panes[preview.pane]) |pane| { + if (pane.serial == preview.serial and panes.Pdf.paneNativeReady(p, pane)) + s.pointer_shape = .link; + } + } + }; + // A look-hover preview means the pointed word is a real Look or Exec + // operand: the same plumbing a click would act on. Hosts that model + // the pointer per-text (the macOS I-beam) read this as "target" and + // afford it the arrow instead. + if (p.look_hover_preview != null) s.pointer_shape = .target; + for (&s.body_layers) |*layer| layer.rows = 0; + for (&s.tag_layers) |*layer| layer.rows = 0; + s.nimages = 0; + s.npanel_tracks = 0; + s.previous_cells = &.{}; + s.previous_body_layers = &.{}; + s.previous_tag_layers = &.{}; + s.previous_regions = &.{}; + s.cell_diffs = &.{}; + const chrome = p.chromeTheme(); + s.chrome = .{ + .page = p.theme().bg, + .fg = p.theme().fg, + .border = chrome.border, + .topbar_rule = config.gui_topbar_pane_border_rgb orelse chrome.border, + .tag_bg = chrome.tag_bg, + .tag_focus_bg = if (p.settings.focus_tint) chrome.tag_active_bg else chrome.tag_bg, + .tag_fg = chrome.tag_fg, + .scroll_track = chrome.scroll_track, + .scroll_thumb = chrome.scroll_thumb, + }; + place(p, s); + // Separators have their own role; a scrollbar need not frame the page. + const whole = s.regions[0].rect; + s.fill(whole.x, whole.y, whole.w, whole.h, .{ .bg = .{ .rgb = chrome.border } }); + + for (&p.panes, 0..) |*slot, id| { + const pane = slot.* orelse continue; + pane.body_rows = 0; + pane.body_visible_rows = 0; + pane.context_row_limit = null; + s.body_layers[id].rows = 0; + try renderPane(p, s, arena, pane, p.rects[id], id, id == p.active); + } + // Each notice once, as a tag layer, and the grid's chip a copy of it. + for (s.regionList()) |region| { + if (region.kind == .notice) try joinNotice(p, s, arena, region); + } + + try paintHeaders(p, s, arena); + + switch (p.drag) { + .border_v => |d| { + if (d.cur_x < s.cols) { + var row: u16 = p.topBarHeight(); + while (row < s.rows) : (row += 1) s.overlayDash(d.cur_x, row, "â•Ž"); + s.addRegion(.{ .kind = .guide, .rect = .{ .x = d.cur_x, .y = p.topBarHeight(), .w = 1, .h = s.rows -| p.topBarHeight() } }); + } + if (d.corner) |k| if (d.cur_y < s.rows) { + const first = if (k.col == d.left_col) p.col_x[k.col] else d.cur_x +| 1; + const end = if (k.col == d.left_col) d.cur_x else p.col_x[k.col] +| p.col_w[k.col] -| 1; + var col = first; + while (col <= end and col < s.cols) : (col += 1) s.overlayDash(col, d.cur_y, "â•Œ"); + if (col > first) s.addRegion(.{ .kind = .guide, .rect = .{ .x = first, .y = d.cur_y, .w = col - first, .h = 1 } }); + }; + }, + // A column that went away mid-drag has nothing to guide. + .border_h => |d| if (d.cur_y < s.rows and d.col < p.ncol and p.col_x[d.col] < s.cols) { + const end = @min(s.cols, p.col_x[d.col] + p.col_w[d.col]); + var col = p.col_x[d.col]; + while (col < end) : (col += 1) s.overlayDash(col, d.cur_y, "â•Œ"); + s.addRegion(.{ .kind = .guide, .rect = .{ .x = p.col_x[d.col], .y = d.cur_y, .w = end - p.col_x[d.col], .h = 1 } }); + }, + .column_move => |d| rail: { + const source = layout.columnBySerial(p, d.serial) orelse break :rail; + if (s.cols == 0) break :rail; + // Where the column's left edge would land, reordered or not. + const edge: u16 = switch (layout.columnDrop(p, source, d.cur_x, d.grab)) { + .stay => break :rail, + .reorder => |target| if (target < source) p.col_x[target] else p.col_x[target] + p.col_w[target], + .edge => |x| x, + }; + // The layers under an outside rail stop a cell short of it: + // `place` clipped them. + // The rail runs in the seam cell left of the edge, where a + // border drag's does: the edge cell itself is a gutter, which + // the GUI paints as a scroll rail that swallowed the dashes. + // At the window's left edge there is no seam, so it runs just + // past that scroll rail instead. It takes the lit grip's + // color: this is where the grabbed column lands. + const x = @min(if (edge == 0) config.GUTTER - 1 else edge - 1, s.cols -| 1); + var row: u16 = p.topBarHeight(); + // A guide region for each run of it the tags do not break. + var run: u16 = row; + while (row < s.rows) : (row += 1) { + // Past the left edge's scroll rail the rail would cut + // through column 0's grip and pane boxes: leave them whole. + if (edge == 0 and s.at(x, row).style.font_role == .tagline) { + if (row > run) s.addRegion(.{ .kind = .guide, .rect = .{ .x = x, .y = run, .w = 1, .h = row - run } }); + run = row + 1; + continue; + } + s.overlayDash(x, row, "â•Ž"); + s.at(x, row).style.fg = .{ .rgb = chrome.column_box }; + } + if (row > run) s.addRegion(.{ .kind = .guide, .rect = .{ .x = x, .y = run, .w = 1, .h = row - run } }); + }, + .move => |d| if (d.cur_x < s.cols) { + if (layout.movePlacement(p, d.id, d.cur_x, d.cur_y)) |placement| if (placement.row < s.rows and p.col_x[placement.preview_col] + p.col_w[placement.preview_col] <= s.cols) { + var col: u16 = p.col_x[placement.preview_col]; + while (col < p.col_x[placement.preview_col] + p.col_w[placement.preview_col]) : (col += 1) { + s.set(col, placement.row, "â•Œ", .{ .fg = .{ .rgb = chrome.lineno } }); + } + s.set(d.cur_x, placement.row, "â–Œ", .{ .fg = .{ .rgb = chrome.lineno } }); + s.addRegion(.{ .kind = .guide, .rect = .{ .x = p.col_x[placement.preview_col], .y = placement.row, .w = p.col_w[placement.preview_col], .h = 1 } }); + s.addRegion(.{ .kind = .guide, .rect = .{ .x = d.cur_x, .y = placement.row, .w = 1, .h = 1 } }); + }; + }, + // A hover left over from a bigger window points past this one. + .none, .select => if (p.pointer_inside and p.hover_row < s.rows and p.hover_col < s.cols) { + // hover hints on a pane's own trailing edge + var c: usize = 0; + while (c + 1 < p.ncol) : (c += 1) { + if (p.hover_col == p.col_x[c] + p.col_w[c] -| 1) { + var row: u16 = p.topBarHeight(); + while (row < s.rows) : (row += 1) s.overlayDash(p.hover_col, row, "â•Ž"); + s.addRegion(.{ .kind = .guide, .rect = .{ .x = p.hover_col, .y = p.topBarHeight(), .w = 1, .h = s.rows -| p.topBarHeight() } }); + } + } + for (0..p.ncol) |cc| { + if (p.hover_col < p.col_x[cc] or p.hover_col >= p.col_x[cc] + p.col_w[cc]) continue; + // the same seam the h-handle hit test picks (see there) + if (mouse.seamIdxAt(p, cc, p.hover_row) != null) { + var col = p.col_x[cc]; + while (col < p.col_x[cc] + p.col_w[cc]) : (col += 1) s.overlayDash(col, p.hover_row, "â•Œ"); + s.addRegion(.{ .kind = .guide, .rect = .{ .x = p.col_x[cc], .y = p.hover_row, .w = p.col_w[cc], .h = 1 } }); + } + } + for (0..p.ncol -| 1) |cn| { + if (p.hover_col != p.col_x[cn] + p.col_w[cn] -| 1) continue; + if (mouse.seamIdxAt(p, cn, p.hover_row) != null) continue; + if (mouse.seamIdxAt(p, cn + 1, p.hover_row) == null) continue; + var col = p.col_x[cn + 1]; + while (col < p.col_x[cn + 1] + p.col_w[cn + 1]) : (col += 1) s.overlayDash(col, p.hover_row, "â•Œ"); + s.addRegion(.{ .kind = .guide, .rect = .{ .x = p.col_x[cn + 1], .y = p.hover_row, .w = p.col_w[cn + 1], .h = 1 } }); + } + }, + } + + // debug overlay: a small stats box drawn last, top-right ("Debug") + if (p.settings.debug) if (p.panes[p.active]) |at| { + var nlive: usize = 0; + for (p.panes) |slot| { + if (slot != null) nlive += 1; + } + var sb_off: usize = undefined; + var sb_total: usize = undefined; + if (at.file) |*f| { + sb_off = f.scroll; + sb_total = panes.File.nlines(p.gpa, f); + } else if (at.pdfPage()) |page| { + sb_off = page; + sb_total = if (comptime pdf_enabled) at.pdf.?.page_count else 0; + } else { + const sb = panes.Terminal.scrollbar(at); + sb_off = sb.offset; + sb_total = sb.total; + } + const effective_font = p.settings.font.effective_name.get(); + const font_name = if (effective_font.len == 0) "default" else effective_font; + var ov_buf: [256]u8 = undefined; + const text = std.fmt.bufPrint( + &ov_buf, + "pardes resizes={d}\ntheme {s}\nfont {s}\nterms {d} cols {d}\nactive #{d} {d}x{d}\nscroll {d}/{d}\npinch {d:6.4}\ntscroll {d:7.4}", + .{ p.resize_count, p.theme().name, font_name[0..@min(font_name.len, 64)], nlive, p.ncol, p.active, at.cols, at.rows, sb_off, sb_total, p.ov_pinch_scale, p.ov_touch_scroll_delta }, + ) catch ""; + // wide enough for the longest theme name compiled in, which is the + // only row here whose width is not ours to choose + const ow: u16 = 38; + const oh: u16 = 10; + const ox: u16 = if (s.cols > ow) s.cols - ow else 0; + if (ox + ow <= s.cols and p.topBarHeight() + oh <= s.rows) { + s.addRegion(.{ .kind = .debug, .rect = .{ .x = ox, .y = p.topBarHeight(), .w = ow, .h = oh } }); + // vaxis single_rounded border ring, default style + s.set(ox, p.topBarHeight(), "â•", .{}); + s.set(ox + ow - 1, p.topBarHeight(), "â•®", .{}); + s.set(ox, p.topBarHeight() + oh - 1, "â•°", .{}); + s.set(ox + ow - 1, p.topBarHeight() + oh - 1, "╯", .{}); + var bx = ox + 1; + while (bx < ox + ow - 1) : (bx += 1) { + s.set(bx, p.topBarHeight(), "─", .{}); + s.set(bx, p.topBarHeight() + oh - 1, "─", .{}); + } + var by = p.topBarHeight() + 1; + while (by < p.topBarHeight() + oh - 1) : (by += 1) { + s.set(ox, by, "│", .{}); + s.set(ox + ow - 1, by, "│", .{}); + } + s.fill(ox + 1, p.topBarHeight() + 1, ow - 2, oh - 2, .{ .bg = .{ .rgb = chrome.scroll_track } }); + var lines = std.mem.splitScalar(u8, text, '\n'); + var ly: u16 = p.topBarHeight() + 1; + while (lines.next()) |line| : (ly += 1) { + if (ly >= p.topBarHeight() + oh - 1) break; + _ = s.print(ox + 1, ly, ow - 2, line, .{ .fg = .{ .rgb = chrome.tag_fg } }); + } + } + }; + try p.presentation.submit(p, s); + return composeAsciiTransitions(p, arena, s); +} + +pub fn composeAsciiTransitions(p: *Pardes, arena: std.mem.Allocator, canonical: *Surface) !*Surface { + _ = p; + if (!canonical.hasPanelDiff()) return canonical; + var presented: ?*Surface = null; + for (canonical.panelTracks()) |track| { + if (!track.effect.composedByCore() or track.phase == .closing) continue; + const area = animation.CellArea.of(track.to); + const col_end = @min(canonical.cols, area.x0 +| area.cols); + const row_end = @min(canonical.rows, area.y0 +| area.rows); + var row: u16 = area.y0; + while (row < row_end) : (row += 1) { + var col: u16 = area.x0; + while (col < col_end) : (col += 1) { + const index = @as(usize, row) * canonical.cols + col; + const composed = composedCell(canonical, track, area, col, row, index) orelse + continue; + if (composed.visuallyEqual(&canonical.cells[index])) continue; + if (presented == null) { + const next = try arena.create(Surface); + next.* = canonical.*; + next.cells = try arena.dupe(Cell, canonical.cells); + presented = next; + } + presented.?.cells[index] = composed; + } + } + } + return presented orelse canonical; +} + +fn composedCell( + canonical: *const Surface, + track: animation.Track, + area: animation.CellArea, + col: u16, + row: u16, + index: usize, +) ?Cell { + if (track.effect == .ascii) { + const diff = switch (canonical.cell_diffs[index]) { + .ascii => |diff| diff, + .unchanged, .visual => return null, + }; + const byte = diff.byteAt(track.frame); + if (byte == diff.to) return null; + if (track.frame == 0) return canonical.previous_cells[index]; + return withByte(canonical.cells[index], byte); + } + return switch (animation.charSource(track, col - area.x0, row - area.y0, area)) { + .old => canonical.previous_cells[index], + .byte => |byte| withByte(canonical.cells[index], byte), + // Churn belongs on the glyph, not on the pane's empty space, and it + // borrows whichever side of the diff actually has one. + .churn => |byte| blk: { + const new_cell = &canonical.cells[index]; + if (hasGlyph(new_cell)) break :blk withByte(new_cell.*, byte); + const old_cell = &canonical.previous_cells[index]; + if (hasGlyph(old_cell)) break :blk withByte(old_cell.*, byte); + break :blk old_cell.*; + }, + .at => |offset| blk: { + const source_col = @as(i32, col) + offset.cols; + const source_row = @as(i32, row) + offset.rows; + // A glyph whose source lies outside the pane has not arrived + // yet: the frozen old cell is the only truthful thing under it. + if (source_col < area.x0 or source_row < area.y0 or + source_col >= @as(i32, area.x0) + area.cols or + source_row >= @as(i32, area.y0) + area.rows or + source_col >= canonical.cols or source_row >= canonical.rows) + break :blk canonical.previous_cells[index]; + const source = @as(usize, @intCast(source_row)) * canonical.cols + + @as(usize, @intCast(source_col)); + break :blk canonical.cells[source]; + }, + }; +} + +fn withByte(cell: Cell, byte: u8) Cell { + var out = cell; + out.text[0] = byte; + out.len = 1; + out.default = false; + return out; +} + +/// Whether a cell shows a glyph a character effect can work on. An unpainted +/// cell and a space are both blank space, whatever style they carry. +fn hasGlyph(cell: *const Cell) bool { + return !cell.default and !(cell.len == 1 and cell.text[0] == ' '); +} + +fn renderPane(p: *Pardes, s: *Surface, arena: std.mem.Allocator, pane: *Pane, r: Rect, id: usize, active: bool) !void { + const tz = tracy.zone(@src(), "renderPane"); + defer tz.end(); + if (r.w <= config.GUTTER or r.h == 0) return; + const th = p.theme(); + const chrome = p.chromeTheme(); + const tx = r.x + config.GUTTER; // text area (tag + body), right of the gutter + const tw = r.w - config.GUTTER; + const tag_y = p.tagTop(pane, r); + const body_y = p.bodyTop(pane, r); + const pane_bg: Color = if (th.bg) |c| .{ .rgb = c } else .default; + + // text area resets to terminal-default cells (vaxis clear semantics); + // light themes paint the page over it. + { + // Two full passes over every cell in the pane, every frame. + const tz_clear = tracy.zone(@src(), "paneClear"); + defer tz_clear.end(); + s.clearRect(tx, r.y, tw, r.h); + if (th.bg) |bg| s.fill(tx, r.y, tw, r.h, .{ .bg = .{ .rgb = bg } }); + } + + const box_bg = if (active) chrome.box else chrome.box_dim; + const box_lum = (@as(u16, box_bg[0]) * 3 + @as(u16, box_bg[1]) * 6 + @as(u16, box_bg[2])) / 10; + const box_ink: [3]u8 = if (box_lum > 140) .{ 0x00, 0x00, 0x00 } else .{ 0xff, 0xff, 0xff }; + const box_style: CellStyle = .{ + .fg = .{ .rgb = box_ink }, + .bg = .{ .rgb = box_bg }, + // Grips keep physical grid dimensions, independently of tag text. + .font_role = .tagline, + }; + s.fill(r.x, tag_y, config.GUTTER, pane.tag_rows, box_style); + s.set(r.x, tag_y, switch (pane.body.mode) { + .normal => config.tag_normal, + .insert => config.tag_insert, + .tty => config.tag_tty, + }, box_style); + + try joinPaneTag(p, s, arena, pane, r, id, active); + + // Folded panes retain their body state, but neither body pixels nor + // its cursor belong outside the one-row tag rectangle. + if (pane.collapsed) return; + + const rail = s.region(.rail, id).?; + if (comptime pdf_enabled) + if (pane.hasPdf() and panes.Pdf.draw(p, s, pane, r, id, tx, tw, rail)) return; + + if (pane.image) |*iv| { + // Below the notice chips: a picture is drawn after the cells (the + // GUI's image pass, kitty's z-order), so a chip over it would be + // painted out. Text gets the overlay; a picture gives up the rows. + const shown = pane.notices.span(); + const image_h = (r.h -| pane.tag_rows) -| shown; + panes.Image.draw(p, s, iv, @intCast(id), pane.serial, tx, body_y + shown, tw, image_h); + // thumbless, but the same one column as the real scrollbar below — + // that is the whole point of drawing it, and like that one it runs + // past the notice bands so the gutter has no notch in it + s.fill(rail.rect.x, rail.rect.y, 1, rail.rect.h, .{ .bg = .{ .rgb = chrome.scroll_track } }); + s.fill(rail.rect.x + 1, rail.rect.y, 1, rail.rect.h, .{ .bg = pane_bg }); + return; + } + + try body_layer.joinBody(p, s, arena, pane, r, id, active, rail.*); +} + +/// The workspace and column tags: each line a tag layer, and the grid's +/// rows copies of those; the column grips, which are the grid's alone. +pub fn paintHeaders(p: *Pardes, s: *Surface, arena: std.mem.Allocator) !void { + const chrome = p.chromeTheme(); + // global tagbar: full width, top rows — unless a native shell has + // taken its commands over, in which case the rows are not ours to draw + tagline.revealHeader(p); + if (s.region(.workspace_tag, Region.none)) |region| { + const top = if (p.header_focus and p.header_column == null) p.header_top else 0; + const layer = &s.tag_layers[MAX_PANES + MAX_COLS]; + try renderHeaderLayer(p, arena, layer, .workspace, 0, region.rect, tagline.topbar(p), top, chrome.tag_bg, chrome.tag_fg); + joinHeaderRows(s, layer, chrome.tag_fg); + } + const column_rows = p.columnBarHeight(); + if (column_rows > 0) for (0..p.ncol) |c| { + const region = s.region(.column_tag, c) orelse continue; + const active = if (layout.findPane(p, p.active)) |found| found.col == c and p.settings.focus_tint else false; + const bg = if (active) chrome.tag_active_bg else chrome.tag_bg; + const fg = if (active) chrome.tag_active_fg else chrome.tag_fg; + if (p.col_x[c] < s.cols) { + // A grip is muted until it is grabbed; then it lights, as a + // pane's box does for the active pane, so the drag shows what it + // holds. + const grip = @min(config.GUTTER, p.col_w[c]); + const inset = @min(TAG_TEXT_INSET, p.col_w[c]); + const grabbed = p.drag == .column_move and layout.columnBySerial(p, p.drag.column_move.serial) == c; + const grip_bg = if (grabbed) chrome.column_box else chrome.column_box_dim; + const lum = (@as(u16, grip_bg[0]) * 3 + @as(u16, grip_bg[1]) * 6 + @as(u16, grip_bg[2])) / 10; + const ink: [3]u8 = if (lum > 140) .{ 0, 0, 0 } else .{ 255, 255, 255 }; + s.fill(p.col_x[c], region.rect.y, grip, column_rows, .{ .bg = .{ .rgb = grip_bg }, .fg = .{ .rgb = ink }, .font_role = .tagline }); + s.fill(p.col_x[c] + grip, region.rect.y, inset - grip, column_rows, .{ .bg = .{ .rgb = bg }, .font_role = .tagline }); + } + const top = if (p.header_focus and p.header_column == c) p.header_top else 0; + const layer = &s.tag_layers[MAX_PANES + c]; + try renderHeaderLayer(p, arena, layer, .column, @intCast(c), region.rect, tagline.columnTag(p, c), top, bg, fg); + if (p.col_x[c] < s.cols) joinHeaderRows(s, layer, fg); + // Laid out at its full width; only shown short of the rail. + layer.viewport.w -|= region.clip; + }; +} + +/// Copy a header's layer into the grid under it, row by row, and its caret. +fn joinHeaderRows(s: *Surface, layer: *const pardes.Layer, fg: [3]u8) void { + const v = layer.viewport; + const w = @min(v.w, s.cols -| v.x); + for (0..layer.rows) |line| joinCells(s, v.x, v.y + @as(u16, @intCast(line)), layer.cells[line * layer.cols ..][0..layer.cols], 0, w, .{ .rgb = fg }); + if (layer.cursor) |caret| { + if (caret.x < v.w) s.cursor = .{ .x = v.x + caret.x, .y = v.y + caret.y, .bar = caret.bar }; + } +} + +/// Copy `w` cells of a layer row, from `from`, into the grid at (x, y) -- +/// the one place the grid gets a tag's, a header's or a notice's cells. A +/// wide glyph cut by either end is left as the band's blank, the way the +/// grid's own print never drew half of one: no head without its spacer, +/// no spacer without its head. `ink` is the band's text colour, which a +/// blank cell does not carry. +fn joinCells(s: *Surface, x: u16, y: u16, cells: []const Cell, from: usize, w: u16, ink: Color) void { + // A tagline wider than the body's cells can lay out fewer than `w`. + const n: u16 = @intCast(@min(w, cells.len -| from)); + if (n == 0 or y >= s.rows) return; + const row = s.cells[@as(usize, y) * s.cols ..][0..s.cols]; + @memcpy(row[x..][0..n], cells[from..][0..n]); + const blank = struct { + fn of(cell: *Cell, band_ink: Color) void { + cell.text[0] = ' '; + cell.len = 1; + if (std.meta.eql(cell.style.fg, band_ink)) cell.style.fg = .default; + } + }.of; + const last = from + n - 1; + if (last + 1 < cells.len and !cells[last + 1].default and cells[last + 1].len == 0) blank(&row[x + n - 1], ink); + if (!cells[from].default and cells[from].len == 0) blank(&row[x], ink); +} + +fn tagTintRange(pane: *const Pane, tag: []const u8, prefix_len: usize) ?struct { lo: usize, hi: usize } { + if (pane.isTerminal()) { + // `tag` is the first row; a prefix longer than it ran to a second. + var words = std.mem.tokenizeAny(u8, tag[@min(prefix_len, tag.len)..], " \t\r\n"); + while (words.next()) |word| { + if (!std.mem.eql(u8, word, "Tty") and !std.mem.startsWith(u8, word, "Tty+")) continue; + const lo = @intFromPtr(word.ptr) - @intFromPtr(tag.ptr); + return .{ .lo = lo, .hi = lo + word.len }; + } + return null; + } + var start: usize = 0; + const name = if (pane.file) |file| + if (pane.prompt == .name) pane.input.own orelse file.path else file.path + else if (pane.image) |state| blk: { + // Image tags put renderer controls before the path. + start = std.mem.lastIndexOf(u8, tag[0..@min(prefix_len, tag.len)], state.path) orelse return null; + break :blk state.path; + } else if (comptime pdf_enabled) blk: { + break :blk if (pane.pdf) |state| state.path else return null; + } else return null; + const basename = if (std.mem.lastIndexOfScalar(u8, name, '/')) |slash| slash + 1 else 0; + if (basename == name.len) return null; + return .{ .lo = start + basename, .hi = start + name.len }; +} + +/// A header or a notice band as a tag layer: `viewport.h` rows, line `top` +/// of `text` and on, laid out at the tagline's pitch -- as wide as its +/// widest line and never narrower than its viewport. +fn renderHeaderLayer(p: *Pardes, arena: std.mem.Allocator, layer: *pardes.Layer, kind: TagKind, id: u16, viewport: Rect, text: []const u8, top: usize, bg: [3]u8, fg: [3]u8) !void { + _ = arena; + if (viewport.w == 0 or viewport.h == 0) { + // No layer, and nothing of an earlier frame's left in it. + layer.rows = 0; + layer.viewport = viewport; + layer.cursor = null; + return; + } + var widest: usize = 0; + for (0..viewport.h) |line| widest = @max(widest, panes.File.displayWidth(modal.lineSlice(text, line + top))); + const columns: u16 = @intCast(@min(std.math.maxInt(u16), @max(p.tagCapacity(viewport.w), widest + 1))); + const count = @as(usize, columns) * viewport.h; + if (layer.cells.len != count) layer.cells = try p.gpa.realloc(layer.cells, count); + layer.kind = kind; + layer.id = id; + layer.serial = if (kind == .column) p.col_serial[id] else 0; + layer.viewport = viewport; + layer.cols = columns; + layer.rows = viewport.h; + layer.context_rows = 0; + layer.bg = bg; + layer.cursor = null; + layer.slide = 0; + layer.fade = 1; + // A notice band carries a PANE id, not a column index, so it must not + // answer to the column being edited -- that would scroll and select + // its text with the column tag's offsets and give it a second caret. + const editing: ?*Text = if (p.header_focus and switch (kind) { + .workspace => p.header_column == null, + .column => p.header_column == id, + .pane, .notice, .body => false, + }) tagline.focusedHeader(p) else null; + const scroll = if (editing != null) p.header_scroll else 0; + for (0..viewport.h) |index| { + const line: u16 = @intCast(index); + const shown = modal.lineSlice(text, index + top); + var surface: Surface = .{ .cols = columns, .rows = 1, .cells = layer.cells[index * columns ..][0..columns] }; + surface.fill(0, 0, columns, 1, .{ .bg = .{ .rgb = bg }, .font_role = .tagline }); + // The scroll is the caret's line's: a shorter line shows nothing. + _ = surface.print(0, 0, columns, shown[@min(shown.len, panes.File.rawAtDisplay(shown, scroll))..], .{ .fg = .{ .rgb = fg }, .bg = .{ .rgb = bg }, .font_role = .tagline }); + // The word under the pointer, a Look or Exec target: on a header even + // while it is edited, on a notice, and on the grid's copy of either + // (joined from this); not on a column a carried column's pointer is + // aiming at a place over. + const hovered = p.pointer_inside and !(kind == .column and p.drag == .column_move); + if (hovered) { + const tag_hit = p.pointer_tag_hit; + const col: ?usize = if (tag_hit) |pointer| + (if (pointer.kind == kind and pointer.id == id and pointer.line == line) pointer.col else null) + else if (p.hover_row == viewport.y + line and p.hover_col >= viewport.x and p.hover_col - viewport.x < viewport.w) + p.hover_col - viewport.x + else + null; + if (col) |hover| if (wordBoundsAtCol(shown, panes.File.rawAtDisplay(shown, hover + scroll))) |bounds| { + var cell = panes.File.rawDisplayCol(shown, bounds.lo) -| scroll; + const end = panes.File.rawDisplayCol(shown, bounds.hi) -| scroll; + while (cell < end and cell < columns) : (cell += 1) { + surface.at(@intCast(cell), 0).style.bg = .{ .rgb = p.theme().sel_bg }; + surface.at(@intCast(cell), 0).style.fg = .{ .rgb = p.theme().sel_fg }; + } + }; + } + if (editing) |t| { + if (tagline.headerSelection(t, try edit.flatSurface(p, t), line + p.header_top)) |span| { + var col = panes.File.rawDisplayCol(shown, span.lo) -| scroll; + const end = panes.File.rawDisplayCol(shown, span.hi) -| scroll; + while (col < end and col < columns) : (col += 1) { + surface.at(@intCast(col), 0).style.bg = .{ .rgb = p.theme().sel_bg }; + surface.at(@intCast(col), 0).style.fg = .{ .rgb = p.theme().sel_fg }; + } + } + const caret = panes.File.rawDisplayCol(shown, @min(@as(usize, @intCast(@max(0, t.cur_col))), shown.len)) -| scroll; + const asking = if (p.panes[p.active]) |active| active.prompt != .none else false; + if (!asking and t.cur_row == line + p.header_top and caret < columns) layer.cursor = .{ .x = @intCast(caret), .y = line, .bar = t.mode == .insert }; + } + } +} + +/// A pane's tag rows, painted once into their layer, a row to a line, and +/// copied into the grid; the grid's caret where the layer has it. +fn joinPaneTag(p: *Pardes, s: *Surface, arena: std.mem.Allocator, pane: *Pane, r: Rect, id: usize, active: bool) !void { + const capacity = p.tagCapacity(r.w -| TAG_TEXT_INSET); + // Too narrow for a layer: only the grid's gap cell. + if (r.w <= TAG_TEXT_INSET) return paintPaneTag(p, s, arena, pane, r, id, active, capacity); + const chrome = p.chromeTheme(); + const region = s.region(.tag, id).?; + const tag = try tagline.tagText(p, arena, pane); + const rows = pane.tag_rows; + // As wide as the widest line it shows, and never narrower than its + // viewport. + var widest: usize = 0; + var split = std.mem.splitScalar(u8, tag, '\n'); + for (0..pane.tag_top) |_| _ = split.next(); + for (0..rows) |_| widest = @max(widest, panes.File.displayWidth(split.next() orelse "")); + const columns: u16 = @intCast(@min(std.math.maxInt(u16) - TAG_TEXT_INSET, @max(capacity, widest + 1))); + const pitch = @as(usize, columns) + TAG_TEXT_INSET; + const storage = try arena.alloc(Cell, pitch * rows); + @memset(storage, .{}); + var temporary: Surface = .{ .cols = columns + TAG_TEXT_INSET, .rows = rows, .cells = storage }; + try paintPaneTag(p, &temporary, arena, pane, .{ .x = 0, .y = 0, .w = columns + TAG_TEXT_INSET, .h = rows }, id, active, capacity); + const tag_fg: Color = .{ .rgb = if (active and p.settings.focus_tint) chrome.tag_active_fg else chrome.tag_fg }; + // One layer, a row to each line the tag shows. + const layer = &s.tag_layers[id]; + const count = @as(usize, columns) * rows; + if (layer.cells.len != count) layer.cells = try p.gpa.realloc(layer.cells, count); + layer.kind = .pane; + layer.id = @intCast(id); + layer.serial = pane.serial; + layer.viewport = .{ .x = region.rect.x + TAG_GAP, .y = region.rect.y, .w = region.rect.w - TAG_GAP - region.clip, .h = rows }; + layer.cols = columns; + layer.rows = rows; + layer.context_rows = 0; + layer.bg = if (active and p.settings.focus_tint) chrome.tag_active_bg else chrome.tag_bg; + layer.slide = 0; + layer.fade = 1; + layer.cursor = if (p.header_focus) null else if (temporary.cursor) |cursor| + .{ .x = cursor.x - TAG_TEXT_INSET, .y = cursor.y, .bar = cursor.bar } + else + null; + for (0..rows) |line| { + @memcpy(layer.cells[line * columns ..][0..columns], storage[line * pitch + TAG_TEXT_INSET ..][0..columns]); + // The grid's row: the gap cell and the text, as far as the pane. + joinCells(s, region.rect.x, region.rect.y + @as(u16, @intCast(line)), storage[line * pitch ..][0..pitch], config.GUTTER, region.rect.w, tag_fg); + } + if (temporary.cursor) |cursor| if (cursor.x - TAG_TEXT_INSET < r.w - TAG_TEXT_INSET) { + s.cursor = .{ .x = r.x + cursor.x, .y = region.rect.y + cursor.y, .bar = cursor.bar }; + }; +} + +/// A notice chip, painted once as a tag layer at the tagline's pitch, and the +/// grid's chip a copy of its right end, where its text is. +fn joinNotice(p: *Pardes, s: *Surface, arena: std.mem.Allocator, region: Region) !void { + const chrome = p.chromeTheme(); + const th = p.theme(); + const id: usize = region.owner; + const pane = p.panes[id].?; + const i: usize = region.notice; + const kind = pane.notices.kinds[i]; + const r = p.rects[id]; + const chip = region.rect.w; + var leader_buf: [16]u8 = undefined; + const text = Messages.noticeText(p, pane, i, &leader_buf); + // A message coming or going blends toward the page it sits on; a grid + // cannot move it by less than a row, a pixel shell slides it too. + const motion: Messages.MessageMotion = if (Messages.noticeLife(pane, i)) |life| Messages.messageMotion(p, life) else .{}; + const page = th.bg orelse chrome.tag_bg; + const bg = Messages.blendRgb(chrome.tag_bg, page, motion.alpha); + // Where an exec was sent to a REPL reads in the tag's name tint, set + // apart from what the editor says. + const ink = if (kind == .message and pane.msg_sent) chrome.tag_name_fg else chrome.tag_fg; + const fg = Messages.blendRgb(ink, page, motion.alpha); + // Nothing to say, or too narrow for a layer: a blank chip on the grid. + if (text.len == 0 or r.w <= TAG_TEXT_INSET) { + s.fill(region.rect.x, region.rect.y, chip, 1, .{ .bg = .{ .rgb = bg }, .font_role = .tagline }); + if (text.len == 0) return; + const printed = Messages.printRight(s, region.rect.x, region.rect.y, chip -| 1, text, .{ .fg = .{ .rgb = fg }, .bg = .{ .rgb = bg }, .font_role = .tagline }); + if (kind != .prompt or id != p.active or pane.prompt == .del_side or pane.prompt == .repl_choice) return; + const prompt_col = panes.File.displayWidth(text[0..@min(@as(usize, @intCast(@max(0, pane.input.cur_col))), text.len)]); + if (prompt_col < printed.dropped) return; + s.cursor = .{ .x = @intCast(printed.left + (prompt_col - printed.dropped)), .y = region.rect.y, .bar = pane.input.mode == .insert }; + return; + } + // Right aligned inside the chip, a blank cell short of its edge: a + // prompt's caret sits AFTER its last character the moment it opens, and + // flush right would put it past the pane and off the grid. Wider than + // the chip, the text loses its head: the end is the part that says + // something. + const capacity = p.tagCapacity(chip); + const room = capacity -| 1; + const shown = panes.File.displayWidth(text); + var kept = text; + if (shown > room) { + var start = panes.File.rawAtDisplay(text, shown - room); + if (panes.File.rawDisplayCol(text, start) < shown - room) start = panes.File.rawAtDisplay(text, shown - room + 1); + kept = text[start..]; + } + const pad = room -| panes.File.displayWidth(kept); + const line = try arena.alloc(u8, pad + kept.len); + @memset(line[0..pad], ' '); + @memcpy(line[pad..], kept); + const layer = &s.tag_layers[NOTICE_LAYER_BASE + id * Pane.Notices.max + i]; + try renderHeaderLayer(p, arena, layer, .notice, @intCast(id), region.rect, line, 0, bg, fg); + layer.slide = motion.slide; + layer.fade = motion.alpha; + // The caret rides the band, where the prompt's glyphs are. + if (kind == .prompt and id == p.active and pane.prompt != .del_side and pane.prompt != .repl_choice) caret: { + const typed = panes.File.displayWidth(text[0..@min(@as(usize, @intCast(@max(0, pane.input.cur_col))), text.len)]); + const dropped = shown - panes.File.displayWidth(kept); + if (typed < dropped) break :caret; + layer.cursor = .{ .x = @intCast(pad + typed - dropped), .y = 0, .bar = pane.input.mode == .insert }; + } + // The grid shows the chip's last cells of the band, where the text ends + // (all of it where the tagline's pitch is the grid's). + const skip = capacity -| chip; + joinCells(s, region.rect.x, region.rect.y, layer.cells[0..layer.cols], skip, chip, .{ .rgb = fg }); + // The band's padding before the text is the chip's fill, which carries + // no ink of its own (the layer prints it as spaces in the band's ink). + // A notice wider than its band has less padding than the band hides. + for (skip..@max(skip, @min(pad, skip + chip))) |col| s.at(region.rect.x + @as(u16, @intCast(col - skip)), region.rect.y).style.fg = .default; + if (layer.cursor) |caret| { + if (caret.x >= skip) s.cursor = .{ .x = region.rect.x + caret.x - @as(u16, @intCast(skip)), .y = region.rect.y, .bar = caret.bar }; + } + // Laid out at its full width; only shown short of the rail. + layer.viewport.w -|= region.clip; +} + +pub fn paintPaneTag(p: *Pardes, s: *Surface, arena: std.mem.Allocator, pane: *Pane, r: Rect, id: usize, active: bool, capacity: u16) !void { + const th = p.theme(); + const chrome = p.chromeTheme(); + const tx = r.x + @min(TAG_TEXT_INSET, r.w); + const tw = r.w -| TAG_TEXT_INSET; + const tag_y = p.tagTop(pane, r); + const body_y = p.bodyTop(pane, r); + const rows = pane.tag_rows; + const page_rgb = th.bg orelse th.tag_bg; + // Focus is visible along the tag without changing its live text grid. + const tag_bg = if (active and p.settings.focus_tint) chrome.tag_active_bg else chrome.tag_bg; + const tag_fg = if (active and p.settings.focus_tint) chrome.tag_active_fg else chrome.tag_fg; + const tag_style: CellStyle = .{ .fg = .{ .rgb = tag_fg }, .bg = .{ .rgb = tag_bg }, .font_role = .tagline }; + // Padding belongs to the same font row but keeps its default ink: a + // role must not manufacture a foreground color for blank cells. + s.fill(r.x + config.GUTTER, tag_y, @min(TAG_GAP, r.w -| config.GUTTER), rows, .{ .bg = .{ .rgb = tag_bg }, .font_role = .tagline }); + s.fill(tx, tag_y, tw, rows, .{ + .bg = .{ .rgb = tag_bg }, + .font_role = .tagline, + }); + const whole = try tagline.tagText(p, arena, pane); + const tail = tagline.curTail(pane); + const prefix_len = whole.len - tail.len; + // A row per line shown, from `tag_top`: the tag's first line carries + // the prefix, the rest are the tag's own text alone. + const top = pane.tag_top; + var lines: [MAX_TAG_ROWS][]const u8 = @splat(""); + var split = std.mem.splitScalar(u8, whole, '\n'); + for (0..top) |_| _ = split.next(); + for (lines[0..rows]) |*line| line.* = split.next() orelse ""; + // The keyboard's caret, as a row and a byte offset in that row's + // line: in the tag's own text when the tag has the keyboard, in the + // path while a name is drafted. + const Caret = struct { row: usize, at: usize }; + const caret: ?Caret = if (!active) + null + else if (pane.prompt == .name) + .{ .row = 0, .at = @min(lines[0].len, @as(usize, @intCast(@max(0, pane.input.cur_col)))) } + else if (pane.focus == .tag and pane.prompt == .none and pane.tag.cur_row >= top and pane.tag.cur_row < top + rows) caret: { + const row: usize = @intCast(pane.tag.cur_row - top); + break :caret .{ .row = row, .at = @min(lines[row].len, @as(usize, @intCast(@max(0, pane.tag.cur_col)))) }; + } else null; + if (caret) |at| { + const line = lines[at.row]; + const col = panes.File.rawDisplayCol(line, at.at); + var scroll: usize = pane.tag_scroll; + if (col < scroll) scroll = col; + if (col >= scroll + capacity) scroll = col - capacity + 1; + var raw = panes.File.rawAtDisplay(line, scroll); + scroll = panes.File.rawDisplayCol(line, raw); + if (col >= scroll + capacity) { + raw = modal.nextGrapheme(line, raw); + scroll = panes.File.rawDisplayCol(line, raw); + } + // A line past a u16 of columns keeps its caret off the band. + pane.tag_scroll = @intCast(@min(scroll, std.math.maxInt(u16))); + } else if (pane.focus != .tag) pane.tag_scroll = 0; + for (lines[0..rows], 0..) |line, row| { + // The scroll is the caret's line's: a shorter row shows nothing. + const start = @min(line.len, panes.File.rawAtDisplay(line, pane.tag_scroll)); + _ = s.print(tx, tag_y + @as(u16, @intCast(row)), tw, line[start..], tag_style); + } + const tag = lines[0]; + if (top == 0) if (tagTintRange(pane, tag, prefix_len)) |name| { + const lo = @max(name.lo, panes.File.rawAtDisplay(tag, pane.tag_scroll)); + const hi = @min(name.hi, tag.len); + if (lo < hi) { + var col = panes.File.rawDisplayCol(tag, lo) -| pane.tag_scroll; + const end = panes.File.rawDisplayCol(tag, hi) -| pane.tag_scroll; + const name_fg = if (active and p.settings.focus_tint) chrome.tag_active_name_fg else chrome.tag_name_fg; + while (col < end and col < tw) : (col += 1) + s.at(tx + @as(u16, @intCast(col)), tag_y).style.fg = .{ .rgb = name_fg }; + } + }; + if (p.look_hover_preview) |preview| { + if (preview.pane == id and preview.serial == pane.serial) if (preview.sel) |sel| if (@min(sel.r0, sel.r1) < rows) { + const preview_bg = colors.mix(page_rgb, colors.mix(page_rgb, th.sel_bg)); + body_layer.paintPointerSelection(p, s, pane, r, tx, tw, tag_y, body_y, sel, 0, preview_bg, null); + }; + } + // The tag's own selections, while it has the keyboard, a line at a + // time. A range of one grapheme is the block cursor, not a selection. + if (pane.focus == .tag) { + var ranges: [Text.max_selections]modal.Selection = undefined; + const got = pane.tag.ranges(whole, 0, &ranges); + for (ranges[0..got.n]) |range| { + const lo = @min(range.anchor, range.head); + const hi = @max(range.anchor, range.head); + if (modal.nextGrapheme(whole, lo) >= hi) continue; + const first = modal.positionAt(whole, lo); + const last = modal.positionAt(whole, hi); + var row = @max(first.row, top); + while (row <= last.row and row < top + rows) : (row += 1) { + const line = lines[row - top]; + const from = if (row == first.row) first.col else 0; + const to = @min(line.len, if (row == last.row) last.col else line.len); + var col = panes.File.rawDisplayCol(line, from) -| pane.tag_scroll; + const end = panes.File.rawDisplayCol(line, to); + const y = tag_y + @as(u16, @intCast(row - top)); + while (col + pane.tag_scroll < end and col < tw) : (col += 1) { + const cell = s.at(tx + @as(u16, @intCast(col)), y); + cell.default = false; + cell.style.bg = .{ .rgb = th.sel_bg }; + cell.style.fg = .{ .rgb = th.sel_fg }; + } + } + } + } + // the caret: bar while typing, block in normal mode (same rule as a body) + if (caret) |at| { + const col = panes.File.rawDisplayCol(lines[at.row], at.at) -| pane.tag_scroll; + const mode = if (pane.prompt == .name) pane.input.mode else pane.tag.mode; + if (col < tw) s.cursor = .{ .x = tx + @as(u16, @intCast(col)), .y = tag_y + @as(u16, @intCast(at.row)), .bar = mode == .insert }; + } + + // Pointer sweeps over the tag rows. A select sweep is the tag's own, in + // its selection colours; the look-hover affordance goes over it, and a + // middle or right sweep over both, tinted by its button the way the + // body tints it. + for (pane.sel, 0..) |selection, button| { + if (selection.state == .none or (selection.state == .done and button != 0)) continue; + if (button != pardes.sel_slot or @min(selection.r0, selection.r1) >= rows) continue; + body_layer.paintPointerSelection(p, s, pane, r, tx, tw, tag_y, body_y, selection, 0, th.sel_bg, th.sel_fg); + } + if (p.look_hover_preview) |preview| { + if (preview.pane == id and preview.serial == pane.serial) if (preview.sel) |sel| if (@min(sel.r0, sel.r1) < rows) { + const preview_bg = colors.mix(page_rgb, colors.mix(page_rgb, th.sel_bg)); + body_layer.paintPointerSelection(p, s, pane, r, tx, tw, tag_y, body_y, sel, 0, preview_bg, null); + }; + } + const sel_btn = body_layer.buttonTints(th); + for (pane.sel, 0..) |selection, button| { + if (selection.state == .none or (selection.state == .done and button != 0)) continue; + if (button == pardes.sel_slot or @min(selection.r0, selection.r1) >= rows) continue; + body_layer.paintPointerSelection(p, s, pane, r, tx, tw, tag_y, body_y, selection, 0, sel_btn[button], th.sel_fg); + } +} + +test "place puts every part where the painters and layers put it, in every layout" { + const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 100, .rows = 30 }); + defer p.deinit(); + _ = try p.setTestFile("placed\n" ** 80); + p.newScratchColumn(0); + p.newScratchBelow(0); + p.sync(); + var arena: std.heap.ArenaAllocator = .init(std.testing.allocator); + defer arena.deinit(); + for (0..16) |step| { + p.settings.tag_bottom = step & 1 != 0; + p.settings.column_tags = step & 2 != 0; + if (step & 4 != 0) try std.testing.expect(p.executeBuiltinLine(p.active, "Msg a placed notice")); + if (step == 8) try std.testing.expect(p.executeBuiltinLine(1, "Collapse")); + if (step == 12) try std.testing.expect(p.executeBuiltinLine(1, "Collapse")); + if (step == 10) { + const pane = p.panes[p.active].?; + pane.tag.own = try std.testing.allocator.dupe(u8, "Second\nthird"); + } + p.sync(); + _ = arena.reset(.retain_capacity); + const s = try p.render(arena.allocator()); + try std.testing.expectEqual(Region.Kind.page, s.regions[0].kind); + for (p.panes, 0..) |slot, id| { + const pane = slot orelse continue; + const r = p.rects[id]; + if (r.w <= config.GUTTER or r.h == 0) continue; + const grip = s.region(.grip, id).?; + try std.testing.expectEqual(Rect{ .x = r.x, .y = p.tagTop(pane, r), .w = config.GUTTER, .h = pane.tag_rows }, grip.rect); + // The grid's grip cell is the grip's. + try std.testing.expectEqual(FontRole.tagline, s.at(grip.rect.x, grip.rect.y).style.font_role); + const tag = s.region(.tag, id).?; + try std.testing.expectEqual(Rect{ .x = r.x + config.GUTTER, .y = p.tagTop(pane, r), .w = r.w - config.GUTTER, .h = pane.tag_rows }, tag.rect); + // One layer, a row to each line of the tag. + if (r.w > TAG_TEXT_INSET) { + try std.testing.expectEqual(Rect{ .x = r.x + TAG_TEXT_INSET, .y = p.tagTop(pane, r), .w = r.w - TAG_TEXT_INSET, .h = pane.tag_rows }, s.tag_layers[id].viewport); + try std.testing.expectEqual(pane.tag_rows, s.tag_layers[id].rows); + } + if (pane.collapsed) { + try std.testing.expect(s.region(.body, id) == null); + try std.testing.expect(s.region(.rail, id) == null); + continue; + } + const body = s.region(.body, id).?; + try std.testing.expectEqual(Rect{ .x = r.x + config.GUTTER, .y = p.bodyTop(pane, r), .w = r.w - config.GUTTER, .h = r.h - pane.tag_rows }, body.rect); + const rail = s.region(.rail, id).?; + // The painted thumb is exactly the placed one. + for (0..rail.rect.h) |row| { + const y = rail.rect.y + @as(u16, @intCast(row)); + const thumb = row >= rail.thumb_y and row < rail.thumb_y + rail.thumb_h; + const want = if (thumb) p.chromeTheme().scroll_thumb else p.chromeTheme().scroll_track; + try std.testing.expectEqual(Color{ .rgb = want }, s.at(rail.rect.x, y).style.bg); + } + var notices: usize = 0; + for (s.regionList()) |region| { + if (region.kind != .notice or region.owner != id) continue; + notices += 1; + try std.testing.expectEqual(pane.notices.left[region.notice], region.rect.x); + try std.testing.expectEqual(r.x + r.w, region.rect.x + region.rect.w); + try std.testing.expectEqual(p.bodyTop(pane, r) + pane.notices.row[region.notice], region.rect.y); + try std.testing.expectEqual(region.rect, s.tag_layers[NOTICE_LAYER_BASE + id * Pane.Notices.max + region.notice].viewport); + } + try std.testing.expectEqual(@as(usize, pane.notices.len), notices); + } + for (0..p.ncol) |c| { + const region = s.region(.column_tag, c); + if (p.columnBarHeight() == 0) { + try std.testing.expect(region == null); + continue; + } + try std.testing.expectEqual(Rect{ .x = p.col_x[c] + TAG_TEXT_INSET, .y = p.topBarHeight(), .w = p.col_w[c] - TAG_TEXT_INSET, .h = p.columnBarHeight() }, region.?.rect); + } + } +} + +test "the word under the pointer on a notice is lit in its layer and in the grid's copy" { + const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 41, .rows = 12 }); + defer p.deinit(); + _ = try p.setTestFile("text\n"); + var arena: std.heap.ArenaAllocator = .init(std.testing.allocator); + defer arena.deinit(); + try std.testing.expect(p.executeBuiltinLine(p.active, "Msg Look here")); + p.sync(); + var s = try p.render(arena.allocator()); + const notice = for (s.regionList()) |region| { + if (region.kind == .notice) break region; + } else return error.TestExpectedNotice; + const row = s.cells[@as(usize, notice.rect.y) * s.cols ..][0..s.cols]; + // "here", the chip's last word, before its blank edge. + const here = notice.rect.x + notice.rect.w - 5; + try std.testing.expectEqualStrings("h", row[here].grapheme()); + p.pointer_inside = true; + p.hover_col = here + 1; + p.hover_row = notice.rect.y; + _ = arena.reset(.retain_capacity); + s = try p.render(arena.allocator()); + const lit = s.cells[@as(usize, notice.rect.y) * s.cols ..][0..s.cols]; + const sel: Color = .{ .rgb = p.theme().sel_bg }; + for (lit[here..][0..4]) |cell| try std.testing.expectEqual(sel, cell.style.bg); + try std.testing.expect(!std.meta.eql(sel, lit[here - 2].style.bg)); + const layer = for (s.tagLayers()) |*layer| { + if (layer.rows != 0 and layer.kind == .notice) break layer; + } else return error.TestExpectedNotice; + const lit_in_layer = for (layer.cells) |cell| { + if (std.meta.eql(sel, cell.style.bg)) break true; + } else false; + try std.testing.expect(lit_in_layer); +} + +test "a notice wider than its band, as a shader's compile error is, draws its end and nothing past it" { + const p = try Pardes.init(std.testing.allocator, .{ .cols = 80, .rows = 20 }); + defer p.deinit(); + // A gui-shaped core: its tagline is narrower than the body, so a notice's + // band holds more columns than its chip has cells. + p.update(.{ .resize = .{ .cols = 80, .rows = 20, .row_metrics = .{ .body_w = 10, .body_h = 20, .tagline_w = 6, .tagline_h = 12 } } }); + _ = try p.setTestFile("text\n"); + var arena: std.heap.ArenaAllocator = .init(std.testing.allocator); + defer arena.deinit(); + const long = "Shader /home/someone/shaders/test_shadertoy_invalid.glsl: error: Linking fragment stage: No function definition (body) found: " ** 3; + for ([_][]const u8{ "Msg " ++ long, "" }) |line| { + // The Msg builtin, and the path a failed compile takes (Post.zig). + if (line.len > 0) try std.testing.expect(p.executeBuiltinLine(p.active, line)) else p.setMessage(p.active, long); + p.sync(); + for (0..30) |_| p.update(.tick); + _ = arena.reset(.retain_capacity); + const s = try p.render(arena.allocator()); + const notice = for (s.regionList()) |region| { + if (region.kind == .notice) break region; + } else return error.TestExpectedNotice; + // Text up to the chip's blank last cell, and no padding ink. + const row = s.cells[@as(usize, notice.rect.y) * s.cols ..][notice.rect.x..][0..notice.rect.w]; + try std.testing.expectEqualStrings(" ", row[row.len - 1].grapheme()); + try std.testing.expect(!std.mem.eql(u8, " ", row[row.len - 2].grapheme())); + } +} + +test "a monkey over notices, prompts, tags and tiny panes at a gui's metrics never panics" { + // The snapshot harness runs the tty, whose tagline pitch is the body's, + // so it never reaches what a narrower tagline does to a notice's band: + // this drives the core at a gui's metrics instead. PARDES_FUZZ_STEPS + // runs it longer (the suite's run is short). + const steps: usize = if (std.c.getenv("PARDES_FUZZ_STEPS")) |v| std.fmt.parseInt(usize, std.mem.span(v), 10) catch 400 else 400; + const seed: u64 = if (std.c.getenv("PARDES_FUZZ_SEED")) |v| std.fmt.parseInt(u64, std.mem.span(v), 10) catch 7 else 7; + var prng = std.Random.DefaultPrng.init(seed); + const random = prng.random(); + const p = try Pardes.init(std.testing.allocator, .{ .cols = 80, .rows = 24 }); + defer p.deinit(); + _ = try p.setTestFile("fuzz\n\u{754c}\u{754c} wide\n" ** 20); + var arena: std.heap.ArenaAllocator = .init(std.testing.allocator); + defer arena.deinit(); + const words = [_][]const u8{ "error:", "\u{754c}", "x", "Shader /tmp/a.glsl:", "e\u{301}", "\t", "long-" ** 20, " " }; + const commands = [_][]const u8{ "New", "Newcol", "Collapse", "Tagbottom", "ColumnTags", "TreeContext", "Wrap", "Find", "Del", "FocusTint", "Debug" }; + var text: std.ArrayListUnmanaged(u8) = .empty; + defer text.deinit(std.testing.allocator); + for (0..steps) |_| { + switch (random.uintLessThan(u8, 8)) { + // A resize, down to a cell, at a gui's metrics: a tagline no + // wider and no taller than the body's cell, often narrower. + 0 => { + const body_w = random.intRangeAtMost(u16, 6, 12); + const body_h = random.intRangeAtMost(u16, 12, 24); + const cols = if (random.boolean()) random.intRangeAtMost(u16, 1, 12) else random.intRangeAtMost(u16, 13, 140); + const rows = if (random.boolean()) random.intRangeAtMost(u16, 1, 6) else random.intRangeAtMost(u16, 7, 50); + p.update(.{ .resize = .{ .cols = cols, .rows = rows, .row_metrics = .{ .body_w = body_w, .body_h = body_h, .tagline_w = random.intRangeAtMost(u16, 2, body_w), .tagline_h = random.intRangeAtMost(u16, 6, body_h) } } }); + }, + // A message, as long as a compile error or longer. + 1, 2 => { + text.clearRetainingCapacity(); + for (0..random.uintAtMost(usize, 60)) |_| try text.appendSlice(std.testing.allocator, words[random.uintLessThan(usize, words.len)]); + if (random.boolean()) p.setMessage(p.active, text.items) else { + const line = try std.fmt.allocPrint(arena.allocator(), "Msg {s}", .{text.items}); + _ = p.executeBuiltinLine(p.active, line); + } + }, + 3 => _ = p.executeBuiltinLine(p.active, commands[random.uintLessThan(usize, commands.len)]), + // Typing, escaping and entering, into a prompt when one is up. + 4 => p.update(.{ .key = .{ .cp = switch (random.uintLessThan(u8, 9)) { + 0 => pardes.Key.escape, + 1 => pardes.Key.enter, + 2 => 0x754c, + 3 => pardes.Key.end, + 4 => pardes.Key.home, + 5 => pardes.Key.up, + 6 => pardes.Key.down, + else => 'a' + random.uintLessThan(u21, 26), + } } }), + // A tag of several rows. + 5 => if (p.panes[p.active]) |pane| { + text.clearRetainingCapacity(); + for (0..random.uintAtMost(usize, 5)) |_| try text.appendSlice(std.testing.allocator, if (random.boolean()) " Look\nmore \u{754c}" else "\n" ++ "x" ** 150); + if (pane.tag.own) |own| std.testing.allocator.free(own); + pane.tag.own = try std.testing.allocator.dupe(u8, text.items); + }, + // Hover, and clicks: into a tag, a header, a body, a grip. + 6 => { + const col = random.uintAtMost(u16, p.screen_w); + const row = random.uintAtMost(u16, p.screen_h); + if (random.boolean()) p.update(.{ .mouse = .{ .button = .none, .kind = .motion, .col = col, .row = row } }) else { + p.update(.{ .mouse = .{ .button = .left, .kind = .press, .col = col, .row = row } }); + p.update(.{ .mouse = .{ .button = .left, .kind = .release, .col = col, .row = row } }); + } + }, + else => for (0..random.uintAtMost(usize, 20)) |_| p.update(.tick), + } + p.sync(); + _ = arena.reset(.retain_capacity); + const s = try p.render(arena.allocator()); + p.acknowledgePanelPresentation(s.panelTracks()); + } +} + +test "a wide glyph cut by a tag's or a notice's edge is joined into the grid as blank, never half drawn" { + const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 41, .rows = 12 }); + defer p.deinit(); + _ = try p.setTestFile("wide\n"); + var arena: std.heap.ArenaAllocator = .init(std.testing.allocator); + defer arena.deinit(); + const pane = p.panes[p.active].?; + // Both alignments, so one of them puts a wide glyph across each edge. + for ([_][]const u8{ "\u{754c}" ** 30, "x" ++ "\u{754c}" ** 30 }) |wide| { + if (pane.tag.own) |own| std.testing.allocator.free(own); + pane.tag.own = try std.testing.allocator.dupe(u8, wide); + var message: [200]u8 = undefined; + try std.testing.expect(p.executeBuiltinLine(p.active, try std.fmt.bufPrint(&message, "Msg {s}", .{wide}))); + p.sync(); + _ = arena.reset(.retain_capacity); + const s = try p.render(arena.allocator()); + for (s.regionList()) |region| { + if (region.kind != .tag and region.kind != .notice) continue; + const row = s.cells[@as(usize, region.rect.y) * s.cols ..][region.rect.x..][0..region.rect.w]; + for (row, 0..) |cell, i| { + const spacer = !cell.default and cell.len == 0; + const head = !cell.default and cell.len > 1 and i + 1 < row.len and !row[i + 1].default and row[i + 1].len == 0; + // A spacer has its head before it; a head its spacer after. + if (spacer) try std.testing.expect(i > 0 and row[i - 1].len > 1); + if (i + 1 == row.len) try std.testing.expect(!head and !(cell.len > 1 and vaxis.gwidth.gwidth(cell.grapheme(), .unicode) == 2)); + } + // The right edge of each is the band, blank where a glyph was cut. + try std.testing.expectEqual(FontRole.tagline, row[row.len - 1].style.font_role); + } + } +} + +test "a body with context rows is painted once, and the grid's rows are what a plain paint of it gives" { + if (comptime !@import("syntax.zig").enabled) return error.SkipZigTest; + const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 60, .rows = 16 }); + defer p.deinit(); + const pane = try p.setTestFile("pub const Box = struct {\n pub fn run() void {\n" ++ (" // body line\n" ** 30) ++ " }\n};\n"); + p.gpa.free(pane.file.?.path); + pane.file.?.path = try p.gpa.dupe(u8, "/test.zig"); + if (!panes.File.supportsContext(pane)) return error.SkipZigTest; + pane.file.?.tree_context = true; + pane.file.?.scroll = 8; + var arena: std.heap.ArenaAllocator = .init(std.testing.allocator); + defer arena.deinit(); + for ([_]bool{ false, true }) |bottom| { + p.settings.tag_bottom = bottom; + // A selection and the cursor on body rows, painted in the one pass. + pane.body.cur_row = 12; + pane.body.cur_col = 3; + pane.body.vsel = .{ .active = true, .row = 10, .col = 2 }; + pane.body.mode = .normal; + p.sync(); + _ = arena.reset(.retain_capacity); + const s = try p.render(arena.allocator()); + const layer = &s.body_layers[0]; + try std.testing.expect(layer.context_rows > 0); + const body = s.region(.body, 0).?; + // The plain paint the grid used to take, of the same frame. + const cells = try arena.allocator().alloc(Cell, s.cells.len); + @memset(cells, .{}); + var plain: Surface = .{ .cols = s.cols, .rows = s.rows, .cells = cells }; + const saved = .{ pane.body_rows, pane.body_visible_rows, pane.context_row_limit }; + pane.body_rows = 0; + pane.body_visible_rows = 0; + pane.context_row_limit = null; + try body_layer.renderBody(p, &plain, arena.allocator(), pane, p.rects[0], 0, true, null, null); + pane.body_rows, pane.body_visible_rows, pane.context_row_limit = saved; + for (0..body.rect.h) |row| { + const y = body.rect.y + row; + for (0..body.rect.w) |col| { + const x = body.rect.x + col; + const got = s.cells[y * s.cols + x]; + const want = plain.cells[y * s.cols + x]; + try std.testing.expect(got.visuallyEqual(&want)); + } + } + try std.testing.expectEqual(plain.cursor, s.cursor); + // The layer's own rows run past the grid's. + try std.testing.expect(layer.rows > body.rect.h); + } +} diff --git a/src/edit.zig b/src/edit.zig index 1b947749..84bbb292 100644 --- a/src/edit.zig +++ b/src/edit.zig @@ -18,7 +18,7 @@ const platform = pardes.platform; const Pane = panes.Pane; const Text = panes.Text; const tag_layer = @import("tag_layer.zig"); -const TagHit = tag_layer.Hit; +const TagHit = pardes.TagHit; const BOX_H = pardes.BOX_H; const TAG_TEXT_INSET = pardes.TAG_TEXT_INSET; const Mouse = pardes.Mouse; diff --git a/src/effect_sources.zig b/src/effect_sources.zig index 08680860..83bd1313 100644 --- a/src/effect_sources.zig +++ b/src/effect_sources.zig @@ -11,8 +11,9 @@ const ui_vertex_path = shader_dir ++ "ui.vert.glsl"; const ui_fragment_path = shader_dir ++ "ui.frag.glsl"; const image_vertex_path = shader_dir ++ "image.vert.glsl"; const image_fragment_path = shader_dir ++ "image.frag.glsl"; -const scene_vertex_path = shader_dir ++ "crt.vert.glsl"; -const scene_fragment_path = shader_dir ++ "crt.frag.glsl"; +const post_vertex_path = shader_dir ++ "post.vert.glsl"; +// The bundled post pass as compiled: the prefix and the pass together. +const post_crt_path = shader_dir ++ "post-crt.frag.glsl"; pub const Backend = @TypeOf(build_config.platform); pub const backend: Backend = build_config.platform; @@ -45,13 +46,13 @@ pub const files = switch (backend) { }, .gui => [_]filesystem.Source{ .{ .path = "src/gui/gui.zig", .contents = @embedFile("gui/gui.zig") }, - .{ .path = "src/gui/crt.zig", .contents = @embedFile("gui/crt.zig") }, + .{ .path = "src/gui/Post.zig", .contents = @embedFile("gui/Post.zig") }, .{ .path = ui_vertex_path, .contents = @embedFile("effect-source-ui.vert.glsl") }, .{ .path = ui_fragment_path, .contents = @embedFile("effect-source-ui.frag.glsl") }, .{ .path = image_vertex_path, .contents = @embedFile("effect-source-image.vert.glsl") }, .{ .path = image_fragment_path, .contents = @embedFile("effect-source-image.frag.glsl") }, - .{ .path = scene_vertex_path, .contents = @embedFile("effect-source-crt.vert.glsl") }, - .{ .path = scene_fragment_path, .contents = @embedFile("effect-source-crt.frag.glsl") }, + .{ .path = post_vertex_path, .contents = @embedFile("effect-source-post.vert.glsl") }, + .{ .path = post_crt_path, .contents = @embedFile("effect-source-post-crt.frag.glsl") }, }, .macos => [_]filesystem.Source{ .{ .path = "src/macos/Sources/PardesView.swift", .contents = @embedFile("macos/Sources/PardesView.swift") }, @@ -69,8 +70,10 @@ pub fn forSetting(setting: config.Runtime.Setting) ?[]const []const u8 { .macos => &.{ "src/layout.zig", "src/pardes.zig", "src/macos/Sources/PardesView.swift", "src/macos/Sources/ScenePostprocessor.swift", "shaders/crt.ci.metal" }, .web, .esp32p4 => null, }, - .scene => switch (backend) { - .gui => &.{ "src/gui/crt.zig", "src/gui/gui.zig", scene_vertex_path, scene_fragment_path }, + .scene => |effect| switch (backend) { + .gui => switch (effect) { + .crt => &.{ "src/gui/Post.zig", "src/gui/gui.zig", post_vertex_path, post_crt_path }, + }, .macos => &.{ "src/macos/Sources/PardesView.swift", "src/macos/Sources/ScenePostprocessor.swift", "shaders/crt.ci.metal" }, .tty, .web, .esp32p4 => null, }, diff --git a/src/esp32p4.zig b/src/esp32p4.zig index 0d532e1e..b7725b81 100644 --- a/src/esp32p4.zig +++ b/src/esp32p4.zig @@ -572,10 +572,9 @@ export fn pardes_esp32p4_tick(now_ms: u64) callconv(.c) void { dirty = true; } } - if (c.animationActive()) { - c.update(.tick); - dirty = true; - } + // The core steps its own animations by this clock (`Host.now`). + c.advance(now_ms * std.time.ns_per_ms); + if (c.needs_frame) dirty = true; } /// How long a lone ESC waits for a second byte before it counts as the Escape key. @@ -590,7 +589,7 @@ var esc_held_at: ?u64 = null; export fn pardes_esp32p4_wants_frame() callconv(.c) bool { const c = core orelse return false; - return dirty or c.animationActive(); + return dirty or c.needs_frame; } export fn pardes_esp32p4_render() callconv(.c) u32 { @@ -607,10 +606,14 @@ export fn pardes_esp32p4_quit() callconv(.c) bool { // ------------------------------------------------------------------------------------ the host -const pardes_host: pardes.Host.VTable = .{ .present = present, .gpio_toggle = gpioToggle }; +const pardes_host: pardes.Host.VTable = .{ .now = boardNow, .present = present, .gpio_toggle = gpioToggle }; + +fn boardNow(_: ?*anyopaque) u64 { + return last_now_ms * std.time.ns_per_ms; +} /// The `Gpio` word's one seam to the board. Nothing here knows what a pad is; it forwards, and -/// answers false when the firmware brought none, which is what puts "gpio: NoPads" on the message +/// answers false when the firmware brought none, which is what puts "gpio: no pads" on the message /// row rather than a trap. fn gpioToggle(_: ?*anyopaque, pin: u16, was: *u8, now: *u8) bool { const f = host_gpio orelse return false; diff --git a/src/exec.zig b/src/exec.zig index 455a325e..ee7c31e9 100644 --- a/src/exec.zig +++ b/src/exec.zig @@ -17,6 +17,10 @@ const themes = colors.themes; const builtins = @import("builtins.zig"); const config = @import("config.zig"); const grammars = @import("grammar_manifest.zig").all; +const python_lang = blk: { + @setEvalBranchQuota(20_000); + break :blk @import("grammar_manifest.zig").byName("python").?; +}; const pdf_enabled = panes.Pdf.enabled; const font_picker = pardes.font_picker; const hosted = pardes.hosted; @@ -69,7 +73,8 @@ pub fn chordEachSel(p: *Pardes, pane: *Pane, cmd: Builtin) bool { var primary_active: ?usize = null; for (texts[0..made], 0..) |txt, i| { - runBuiltin(p, cmd, id, "", txt); + // Every selection is the body's, each one sent as the first is. + runBuiltinFrom(p, cmd, id, "", txt, true); if (i == got.pri) primary_active = p.active; const still = p.panes[id] orelse break; if (still.serial != serial) break; @@ -292,8 +297,8 @@ fn askWrite(p: *Pardes, id: usize, serial: u32, path: []const u8) void { /// Tty: a shell in the caller's directory, raw from the first frame, /// stacked below the caller like Alt-n's new shell. -pub fn spawnTty(p: *Pardes, from: usize) void { - spawnTtyWithMount(p, from, false); +pub fn spawnTty(p: *Pardes, from: usize) ?*Pane { + return spawnTtyWithMount(p, from, false); } pub fn spawnV9fsTty(p: *Pardes, from: usize) void { @@ -301,13 +306,19 @@ pub fn spawnV9fsTty(p: *Pardes, from: usize) void { return p.reportError(from, "Tty9p", error.LinuxRequired); if (p.fs.socket_path.len == 0) return p.reportError(from, "Tty9p", error.SessionSocketRequired); - spawnTtyWithMount(p, from, true); + _ = spawnTtyWithMount(p, from, true); } -fn spawnTtyWithMount(p: *Pardes, from: usize, v9fs: bool) void { - const src = p.panes[from] orelse return; - const free = p.freeSlot() orelse return; - const nt = p.newShell(free, Pardes.paneDir(src)) catch return; +fn spawnTtyWithMount(p: *Pardes, from: usize, v9fs: bool) ?*Pane { + const src = p.panes[from] orelse return null; + const free = p.freeSlot() orelse { + p.reportFailure(from, "Tty: no pane free"); + return null; + }; + const nt = p.newShell(free, Pardes.paneDir(src)) catch |err| { + p.reportError(from, "Tty", err); + return null; + }; nt.greet = !v9fs; nt.v9fs_on_spawn = v9fs; nt.body.mode = .tty; @@ -317,6 +328,7 @@ fn spawnTtyWithMount(p: *Pardes, from: usize, v9fs: bool) void { layout.splitBelow(p, parent, nt); p.active = free; p.stillborn_joiner = nt.serial; + return nt; } /// when a doc lands in `col`, a lone pristine shell there is clutter — drop @@ -339,7 +351,7 @@ pub fn evictLonePristineTty(p: *Pardes, col: usize, keep_id: usize) void { panes.Terminal.scrollbar(tt).total > tt.rows) return; p.deinitPane(tt) catch |err| return p.reportError(tty_id, "close", err); layout.compute(p); // a just-stacked doc has no rect yet; absorb snaps to rows - layout.absorbVWeight(p, tty_id, null); + _ = layout.absorbVWeight(p, tty_id, null); layout.removePane(p, tty_id); p.panes[tty_id] = null; if (p.active == tty_id) p.active = keep_id; @@ -364,10 +376,8 @@ pub fn replaceStillborn(p: *Pardes) void { if (out.from != .cmd or out.from.cmd != .New) return; if (file.revision != 0 or file.content.len != 0) return; if (old.tag.own) |own| if (!std.mem.eql(u8, own, tagline.defaultTail(old))) return; - const was_active = p.active == old_id; layout.compute(p); // the joiner may have no rect yet; absorb snaps to rows p.removePane(old_id, new_id) catch |err| return p.reportError(old_id, "close", err); - if (was_active) p.active = new_id; } // ---- REPLs ---- @@ -381,16 +391,18 @@ pub fn replaceStillborn(p: *Pardes) void { /// A file pane's language, as grammar_manifest names it, by its index. pub fn langOf(pane: *const Pane) ?u8 { const f = pane.file orelse return null; - for (grammars, 0..) |g, i| for (g.exts) |ext| { - if (std.mem.endsWith(u8, f.path, ext)) return @intCast(i); - }; - return null; + return @intCast(@import("grammar_manifest.zig").byPath(f.path) orelse return null); } -/// A bound REPL whose program can still take input: a command pane's is -/// gone once its command is done. -pub fn replLive(pane: *const Pane) bool { - return pane.repl != null and pane.isTerminal() and !(pane.command != null and pane.command_done); +/// A bound REPL whose program is there to take input: a command pane's +/// while its command runs; an interactive terminal's while a program, not +/// the shell, has its tty (the host's `tty_taken`) -- a python3 left with +/// Ctrl-D leaves the shell, which would run `import os` as ImageMagick's. +pub fn replLive(p: *const Pardes, id: usize) bool { + const pane = p.panes[id] orelse return false; + if (pane.repl == null) return false; + if (pane.command != null) return !pane.command_done; + return p.hostTtyTaken(id); } /// `python-a`. @@ -401,22 +413,37 @@ pub fn replId(buf: []u8, pane: *const Pane) []const u8 { const Routed = union(enum) { none, sent: usize, asked }; +/// The REPL bound here has no program running to take the text: said, +/// and nothing sent or run. +fn replGone(p: *Pardes, from: usize, repl: *const Pane) Routed { + var idbuf: [48]u8 = undefined; + var said: [128]u8 = undefined; + p.setMessage(from, std.fmt.bufPrint(&said, "Repl: {s} has no program running; nothing sent", .{replId(&idbuf, repl)}) catch "Repl: no program running"); + return .asked; +} + /// Where an exec from `from`'s body goes when a REPL is bound for it: the /// one there is, or a question when there are several. fn routeToRepl(p: *Pardes, from: usize, text: []const u8) Routed { const src = p.panes[from] orelse return .none; - if (src.repl != null and replLive(src)) { + if (src.repl != null) { + if (!replLive(p, from)) return replGone(p, from, src); sendToRepl(p, from, from, text); return .{ .sent = from }; } const lang = langOf(src) orelse return .none; var bound: [26]usize = undefined; var n: usize = 0; - for (p.panes, 0..) |slot, i| if (slot) |pane| if (pane.repl) |r| if (r.lang == lang and replLive(pane) and n < bound.len) { + var gone: ?usize = null; + for (p.panes, 0..) |slot, i| if (slot) |pane| if (pane.repl) |r| if (r.lang == lang and n < bound.len) { + if (!replLive(p, i)) { + gone = i; + continue; + } bound[n] = i; n += 1; }; - if (n == 0) return .none; + if (n == 0) return if (gone) |i| replGone(p, from, p.panes[i].?) else .none; if (n == 1) { sendToRepl(p, from, bound[0], text); return .{ .sent = bound[0] }; @@ -426,6 +453,7 @@ fn routeToRepl(p: *Pardes, from: usize, text: []const u8) Routed { const owned = p.gpa.dupe(u8, text) catch return .none; if (p.repl_ask) |old| p.gpa.free(old.text); p.repl_ask = .{ .from = src.serial, .lang = lang, .text = owned }; + for (bound[0..n]) |i| p.repl_ask.?.offered[p.panes[i].?.repl.?.letter - 'a'] = p.panes[i].?.serial; var w = std.Io.Writer.fixed(&src.question); w.print("send to {s}:", .{grammars[lang].name}) catch {}; for (bound[0..n]) |i| w.print(" {c}", .{p.panes[i].?.repl.?.letter}) catch {}; @@ -443,10 +471,28 @@ pub fn sendToRepl(p: *Pardes, from: usize, to: usize, text: []const u8) void { const src = p.panes[from] orelse return; var idbuf: [48]u8 = undefined; const id = replId(&idbuf, dst); - edit.typeToTty(p, to, dst, text); + // Lines end in \n alone (a \r\n would give Python a blank line that + // ends its block), and no ESC or other control byte but a tab goes: an + // ESC[201~ in the text would end a bracketed paste early. + const clean = p.scratch.allocator().alloc(u8, text.len) catch return; + var n: usize = 0; + for (text, 0..) |c, i| { + if (c == '\r') { + if (i + 1 < text.len and text[i + 1] == '\n') continue; + clean[n] = '\n'; + } else if (c < ' ' and c != '\t' and c != '\n' or c == 0x7f) continue else clean[n] = c; + n += 1; + } + // Sent whole or not at all: a send cut short would leave the REPL in a + // paste, or with half a block. + if (n + 16 > p.writeRoom(to)) { + var said: [128]u8 = undefined; + return p.setMessage(from, std.fmt.bufPrint(&said, "Repl: {d} bytes is more than can be sent at once; send less", .{n}) catch "Repl: too long to send"); + } + edit.typeToTty(p, to, dst, clean[0..n]); p.emitWrite(to, "\r"); // Line by line, a blank line inside a Python block ends the block. - if (!panes.Terminal.bracketedPaste(dst) and !dst.repl_warned and std.mem.startsWith(u8, id, "python") and + if (!panes.Terminal.bracketedPaste(dst) and !dst.repl_warned and (if (dst.repl) |r| r.lang == python_lang else false) and std.mem.indexOfScalar(u8, text, '\n') != null) { dst.repl_warned = true; @@ -471,12 +517,15 @@ const max_exec_depth = 8; /// child is `$SHELL -c` the line, which shows its output and `exit N` when /// done, and which Kill signals. Answers the pane it went to. pub fn execute(p: *Pardes, id: usize, txt: []const u8) ?usize { + return executeFrom(p, id, txt, false); +} + +/// `execute` for text a gesture took from `id`'s body when `from_body`: +/// such text may be a bound REPL's. Run by name (`Exec ...`, whose line +/// comes back through `execute`) or written as a command word, never. +pub fn executeFrom(p: *Pardes, id: usize, txt: []const u8, from_body: bool) ?usize { const pane = p.panes[id] orelse return null; - // Made by a gesture on a body, it may be a bound REPL's; run by name - // (`Exec ...`, which runs through here again) or written in a command - // word, it never is. - const gesture = p.exec_from_body and config.commandWord(std.mem.trim(u8, txt, " \t\r\n")) == null; - p.exec_from_body = false; + const gesture = from_body and config.commandWord(std.mem.trim(u8, txt, " \t\r\n")) == null; const cmd = commandText(txt); if (cmd.len == 0) return null; if (p.exec_depth == 0) p.noteHaptic(.exec); @@ -507,15 +556,23 @@ pub fn execute(p: *Pardes, id: usize, txt: []const u8) ?usize { /// A pane reused keeps what it showed: the new command runs below a line /// naming it, as acme appends to +Errors and never clears it (util.c:213). fn runCommand(p: *Pardes, from: usize, line: []const u8) ?usize { + // The board and the web page start no processes: a command pane there + // would say running for ever, and fill the slots. + if (comptime !hosted) { + p.reportFailure(from, "exec: not a builtin, and this build runs no commands"); + return null; + } if (line.len > command_max) { p.reportFailure(from, "exec: a command line is at most 1024 bytes"); return null; } const src = p.panes[from] orelse return null; const dir = Pardes.paneDir(src); - const reuse: ?usize = if (src.command != null and src.command_done) from else for (p.panes, 0..) |slot, i| { + // Not one whose pty a job it left behind still prints to: reusing it + // would hang that job up. + const reuse: ?usize = if (src.command != null and src.command_done and !src.command_pty) from else for (p.panes, 0..) |slot, i| { const other = slot orelse continue; - if (other.command != null and other.command_done and std.mem.eql(u8, other.cwdSlice(), dir)) break i; + if (other.command != null and other.command_done and !other.command_pty and std.mem.eql(u8, other.cwdSlice(), dir)) break i; } else null; if (reuse) |id| { const pane = p.panes[id].?; @@ -527,16 +584,16 @@ fn runCommand(p: *Pardes, from: usize, line: []const u8) ?usize { pane.command = owned; pane.command_done = false; pane.command_status = null; + pane.command_pty = true; pane.body.mode = .tty; // What the last program left the emulator in goes first: the // alternate screen left (only if it is there: leaving restores a // saved cursor), mouse reports and bracketed paste off, the cursor - // shown, then a soft reset (DECSTR) for the rest. + // shown, colours reset. (Not DECSTR: ghostty's stream does not + // implement it.) if (panes.Terminal.onAlternateScreen(pane)) panes.Terminal.feedOutput(p, pane, "\x1b[?1049l"); - panes.Terminal.feedOutput(p, pane, "\x1b[?1000l\x1b[?1002l\x1b[?1003l\x1b[?1006l\x1b[?2004l\x1b[?25h\x1b[!p"); - var buf: [command_max + 8]u8 = undefined; - const lead = if (panes.Terminal.gridCursor(pane).x != 0) "\r\n" else ""; - panes.Terminal.feedOutput(p, pane, std.fmt.bufPrint(&buf, "{s}% {s}\r\n", .{ lead, line }) catch "%\r\n"); + panes.Terminal.feedOutput(p, pane, "\x1b[?1000l\x1b[?1002l\x1b[?1003l\x1b[?1006l\x1b[?2004l\x1b[?25h\x1b[0m"); + echoCommand(p, pane, line); p.emit(.{ .spawn = .{ .pane = @intCast(id), .serial = pane.serial, .cwd = .from(pane.cwdSlice()) } }); noteRun(p, pane, "run", line); return id; @@ -549,6 +606,7 @@ fn runCommand(p: *Pardes, from: usize, line: []const u8) ?usize { p.reportError(from, "exec", err); return null; }; + echoCommand(p, pane, line); const rc = if (p.ncol > 0) p.ncol - 1 else 0; if (p.col_n[rc] > 0) { const parent = layout.splitParent(p, p.col_panes[rc][p.col_n[rc] - 1]); @@ -560,12 +618,26 @@ fn runCommand(p: *Pardes, from: usize, line: []const u8) ?usize { return free; } +/// `% line` above a command's output, every command, as a shell echoes +/// what it was given; its newlines the terminal's, so a multi-line command +/// does not staircase. +fn echoCommand(p: *Pardes, pane: *Pane, line: []const u8) void { + var buf: [2 * command_max + 8]u8 = undefined; + var w = std.Io.Writer.fixed(&buf); + w.writeAll(if (panes.Terminal.gridCursor(pane).x != 0) "\r\n% " else "% ") catch {}; + for (line) |c| (if (c == '\n') w.writeAll("\r\n") else w.writeByte(c)) catch {}; + w.writeAll("\r\n") catch {}; + panes.Terminal.feedOutput(p, pane, w.buffered()); +} + /// `run <serial> <word>` or `exit <serial> <N|?>` in the log. +/// The whole line, one record as `msg` carries its text: its control +/// characters, a newline too, become spaces (events.pushLog). A new pane is +/// announced first, so `new` comes before the `run` in it. fn noteRun(p: *Pardes, pane: *Pane, what: []const u8, said: []const u8) void { - var buf: [96]u8 = undefined; - const word = std.mem.trim(u8, said, " \t"); - const first = word[0 .. std.mem.indexOfAny(u8, word, " \t") orelse word.len]; - pardes.ctlfs.events.notePath(p, what, std.fmt.bufPrint(&buf, "{d} {s}", .{ pane.serial, first[0..@min(first.len, 64)] }) catch return); + pardes.ctlfs.events.announce(p); + var buf: [command_max + 16]u8 = undefined; + pardes.ctlfs.events.notePath(p, what, std.fmt.bufPrint(&buf, "{d} {s}", .{ pane.serial, std.mem.trim(u8, said, " \t\r\n") }) catch return); } /// A command pane's child is gone: the pane stays, showing what it said @@ -573,6 +645,8 @@ fn noteRun(p: *Pardes, pane: *Pane, what: []const u8, said: []const u8) void { pub fn commandDone(p: *Pardes, id: usize, status: ?u8) void { const pane = p.panes[id] orelse return; pane.command_done = true; + // A REPL it was is gone with its command; the pane's next is not one. + pane.repl = null; pane.command_status = status; pane.body.mode = .normal; var buf: [16]u8 = undefined; @@ -621,6 +695,11 @@ pub fn applyStartupConfig(p: *Pardes) void { } pub fn runBuiltin(p: *Pardes, b: Builtin, id: usize, txt: []const u8, arg: ?[]const u8) void { + runBuiltinFrom(p, b, id, txt, arg, false); +} + +/// `runBuiltin` saying whether a gesture on the pane's body made it. +pub fn runBuiltinFrom(p: *Pardes, b: Builtin, id: usize, txt: []const u8, arg: ?[]const u8, from_body: bool) void { if (!normal.multiOnce(p)) return; // a builtin is per-keystroke, never per-cursor const pane = p.panes[id] orelse return; // A builtin says its own name before it runs, so a tagline click is @@ -630,7 +709,7 @@ pub fn runBuiltin(p: *Pardes, b: Builtin, id: usize, txt: []const u8, arg: ?[]co p.setMessage(id, @tagName(b)); pane.msg_announcement = true; } - const c: builtins.Ctx = .{ .p = p, .pane = pane, .id = id, .txt = txt, .arg = arg }; + const c: builtins.Ctx = .{ .p = p, .pane = pane, .id = id, .txt = txt, .arg = arg, .from_body = from_body }; builtins.registry.dispatch(b, c); } @@ -662,7 +741,11 @@ pub fn applySettingBuiltin(p: *Pardes, setting: config.Runtime.Setting, arg: ?[] if (!p.settings.requestFont(matches[0].path, matches[0].name, spec.size_hundredths)) return; p.font_request_taken = false; }, - else => _ = p.settings.apply(setting, arg), + else => if (!p.settings.apply(setting, arg) and p.announce) { + var text: [96]u8 = undefined; + const takes = if (setting.action == .toggle) "takes on or off" else "does not take that value"; + p.reportFailure(p.active, std.fmt.bufPrint(&text, "{s}: {s}", .{ setting.word, takes }) catch takes); + }, } if (p.settings.colors != previous_colors) { for (p.panes) |slot| { @@ -688,6 +771,10 @@ pub fn applySettingBuiltin(p: *Pardes, setting: config.Runtime.Setting, arg: ?[] if (p.settings.column_tags != previous_column_tags) { if (p.header_column != null) tagline.exitHeader(p); } + // Idle frames keep no frozen grid while transitions are off; the one + // just drawn is the baseline the first transition starts from. + if (transition_changed and previous_transition == .off) + p.presentation.capturePrevious(p.gpa, &p.surface); if (transition_changed or tagline_metrics_changed or p.settings.column_tags != previous_column_tags) { p.abandonPanelAnimations(); } diff --git a/src/fs-help.txt b/src/fs-help.txt index 79701628..57ef7b62 100644 --- a/src/fs-help.txt +++ b/src/fs-help.txt @@ -5,18 +5,18 @@ index one line per pane: serial, kind (text|term|pdf|image), dirty flag, n status pid, version and pane count look write a line: a right click on it at the active pane; read: the serials it touched exec write a line: a middle click, an editor command word or a shell line; read the same -log events: new/del/rename/save <serial> <name>, msg <serial|-> <text>, err <serial|-> <why> +log events: new/del/rename/save <serial> <name>, run/exit/send <serial> ..., dump/restore <path>, msg, err screen rendered screen as JSON, frozen from open to close listeners the session's dial addresses focus the serial of the pane with the keyboard; write a serial to give it the keyboard -ctl settings, one a line; or Newcol, Dump, Exit (quits; asks once), Kill (stops the fg job) +ctl settings, one a line; or Newcol, Dump, Exit (quits; asks once), Kill [word] (stops what pardes ran, or what starts with word) commands every builtin: its word, arg if it takes one, and root or pane: which ctl takes it pane/new open it to make a pane (named +New); the read answers that pane's serial pane/<n>/ name body tag ctl addr dot limit data xdata sel dirty mark scroll errors (write-only: appended to its directory's +Errors pane) event look exec, pty/ on terminals; rmdir closes os/, src/ the host filesystem; the editor's own sources (-Dembed-sources=true builds only) -Below, $m is the mount (/mnt/9p/pardes/<pid> via 9ns --mntgen; PARDES_MOUNT in a Tty9p shell): +Below, $m is the mount: $NINE_MOUNT/pardes/<pid> when 9ns --mntgen set $NINE_MOUNT; PARDES_MOUNT in a Tty9p shell. cat $m/index which panes exist n=$(cat $m/pane/new) make a pane, take its serial @@ -39,7 +39,7 @@ Pitfalls, one each: data: > replaces the addr range, : > deletes it, a 2nd > inserts (addr moved); body: > empties all. tag reads the path, then its own text; writes append; truncating clears it, default words too. A terminal's body is a history snapshot frozen per open; pty/data is the live stream. - exec: a non-builtin line runs as a command pane ($SHELL -c; exit N shown, logged), a shell's typed in. + exec: a non-builtin line runs as a command pane (ctl's Shell -c; exit N shown, logged), a shell's typed in. Through a mount a malformed write is EINVAL, a well-formed one that fails EIO: log's err says why. lock/unlock need a held ctl fd (exec 3>ctl), a held lock fails: retry. A column's last pane -> +New. - Repl python on a terminal's ctl: a .py body's clicks go to it; tag words, Exec x, @`x` stay commands. + Repl python on a terminal's ctl: a .py body's clicks go to it (Repl - unbinds, Repl says it); tags stay commands. @@ -1261,11 +1261,11 @@ pub const Namespace = struct { /// ctl answers a command's error (editors/acme/xfid.c:700). no_prompt: bool = false, refused: bool = false, - failure: [96]u8 = undefined, - failure_len: u8 = 0, + failure: [256]u8 = undefined, + failure_len: u16 = 0, /// A refusal that quotes the message it refuses, as Plan 9's cmderror /// does (kernel/misc/parse.c:82); answered at once (src/9p_io.zig). - ename: [128]u8 = undefined, + ename: [320]u8 = undefined, /// Something a held read may be waiting on changed since they were last /// answered: a record queued, a run answered, a pane gone. news: bool = false, diff --git a/src/grammar_manifest.zig b/src/grammar_manifest.zig index 0303af17..d6666729 100644 --- a/src/grammar_manifest.zig +++ b/src/grammar_manifest.zig @@ -2,6 +2,8 @@ //! runtime syntax registry. Keep target symbols and query values out of this //! file: the build runner imports it as host code. +const std = @import("std"); + pub const Tier = enum { zig, minimal, full }; pub const Grammar = struct { @@ -49,3 +51,44 @@ pub const all = [_]Grammar{ .{ .name = "typst", .dep = "ts_typst", .exts = &.{ ".typ", ".typst" }, .tier = .full, .scanner = true, .query = "queries/typst/highlights.scm" }, .{ .name = "zig", .dep = "ts_zig", .exts = &.{ ".zig", ".zon" }, .tier = .zig }, }; + +/// The names a language goes by besides its grammar's: a fence's `py`, +/// a `Repl sh`. +pub const aliases = [_]struct { []const u8, []const u8 }{ + .{ "js", "javascript" }, + .{ "jsx", "javascript" }, + .{ "mjs", "javascript" }, + .{ "py", "python" }, + .{ "sh", "bash" }, + .{ "shell", "bash" }, + .{ "zsh", "bash" }, + .{ "bash", "bash" }, + .{ "rs", "rust" }, + .{ "c++", "cpp" }, + .{ "cxx", "cpp" }, + .{ "cc", "cpp" }, + .{ "cs", "c_sharp" }, + .{ "kt", "kotlin" }, + .{ "rb", "ruby" }, + .{ "ml", "ocaml" }, + .{ "hs", "haskell" }, +}; + +/// The grammar a language name means: its own name or an alias, in any case. +pub fn byName(name: []const u8) ?usize { + var canonical = name; + for (aliases) |a| if (std.ascii.eqlIgnoreCase(name, a[0])) { + canonical = a[1]; + break; + }; + for (all, 0..) |g, i| if (std.ascii.eqlIgnoreCase(canonical, g.name)) return i; + return null; +} + +/// The grammar a path's extension selects, in any case. +pub fn byPath(path: []const u8) ?usize { + const ext = std.fs.path.extension(path); + if (ext.len == 0) return null; + for (all, 0..) |g, i| for (g.exts) |e| if (std.ascii.eqlIgnoreCase(ext, e)) return i; + return null; +} diff --git a/src/gui/Post.zig b/src/gui/Post.zig new file mode 100644 index 00000000..f715965f --- /dev/null +++ b/src/gui/Post.zig @@ -0,0 +1,576 @@ +//! The post chain (docs/render-pipeline.md §6): Shadertoy passes over the +//! finished frame, each reading the one before it (the frame first) and the +//! last one writing the window. A pass is the bundled Crt (shaders/post/, +//! compiled with the build) or a user's file (Shader <path>), +//! compiled when it joins the chain by the build's own glslc invocation on a +//! thread of its own, never on the frame path. A file whose compile fails +//! keeps its last good pipeline, and glslc missing is said once. +//! +//! The uniforms are ghostty's (Uniforms), so a shader written for ghostty runs +//! here. Their clock is the shell's and moves only when the chain draws: +//! with a frame of the core's, or on its own while ShaderAnimation asks for +//! it (redraw level A, §5.5: the chain alone, over the retained frame). +const std = @import("std"); +const libc = std.c; +const ghostty_vt = @import("ghostty-vt"); +const pardes = @import("../pardes.zig"); +const filesystem = @import("../fs.zig"); +const gui = @import("gui.zig"); +const c = gui.c; + +const Post = @This(); +const Scene = pardes.config.Runtime.Scene; +const Chain = pardes.config.Runtime.Post; +const Pipeline = c.SDL_GPUGraphicsPipeline; +pub const max = Chain.max; + +const prefix = @embedFile("post-prefix.glsl"); +const vert_spv = @embedFile("post.vert.spv"); +const bundled_spv = std.EnumArray(Scene, []const u8).init(.{ + .crt = @embedFile("post-crt.frag.spv"), +}); + +/// ghostty's Shadertoy uniform block, member for member in the GLSL block's +/// order and std140 layout (shaders/post/prefix.glsl). Filled by the GLSL +/// names: ghostty's own Zig mirror calls the second-to-last slot +/// selection_background, so there the two selection colours arrive swapped +/// (docs §6, open point 1); here each is what its GLSL name says. +pub const Uniforms = extern struct { + resolution: [3]f32 align(16) = .{ 0, 0, 1 }, + time: f32 align(4) = 0, + time_delta: f32 align(4) = 0, + frame_rate: f32 align(4) = 60, + frame: i32 align(4) = 0, + channel_time: [4][4]f32 align(16) = @splat(@splat(0)), + channel_resolution: [4][4]f32 align(16) = @splat(@splat(0)), + mouse: [4]f32 align(16) = @splat(0), + date: [4]f32 align(16) = @splat(0), + sample_rate: f32 align(4) = 44100, + current_cursor: [4]f32 align(16) = @splat(0), + previous_cursor: [4]f32 align(16) = @splat(0), + current_cursor_color: [4]f32 align(16) = @splat(0), + previous_cursor_color: [4]f32 align(16) = @splat(0), + current_cursor_style: i32 align(4) = 0, + previous_cursor_style: i32 align(4) = 0, + cursor_visible: i32 align(4) = 0, + cursor_change_time: f32 align(4) = 0, + time_focus: f32 align(4) = 0, + focus: i32 align(4) = 1, + palette: [256][4]f32 align(16) = @splat(@splat(0)), + background_color: [4]f32 align(16) = @splat(0), + foreground_color: [4]f32 align(16) = @splat(0), + cursor_color: [4]f32 align(16) = @splat(0), + cursor_text: [4]f32 align(16) = @splat(0), + selection_foreground_color: [4]f32 align(16) = @splat(0), + selection_background_color: [4]f32 align(16) = @splat(0), +}; + +pub const Pass = struct { + scene: ?Scene = null, + /// A bundled pass's strength (pardesLevel); 0 for a file. + level: u8 = 0, + /// A user's file, owned; empty for a bundled pass. + path: []u8 = &.{}, + pipeline: ?*Pipeline = null, +}; + +/// One compile of a chain's new files, on its own thread. +const Job = struct { + const Result = union(enum) { none, spirv: []u8, failed: []u8, missing }; + io: std.Io, + gpa: std.mem.Allocator, + paths: [max][]u8 = @splat(&.{}), + results: [max]Result = @splat(.none), + len: usize = 0, + done: std.atomic.Value(bool) = .init(false), + thread: std.Thread = undefined, +}; + +passes: [max]Pass = @splat(.{}), +len: usize = 0, +/// The chain generation `passes` follow; null before the first. +generation: ?u32 = null, +bundled: std.EnumArray(Scene, ?*Pipeline) = .initFill(null), +job: ?*Job = null, +/// Said once: without glslc, files never compile. +missing_said: bool = false, +ping: [2]?*c.SDL_GPUTexture = .{ null, null }, +ping_w: u32 = 0, +ping_h: u32 = 0, +uniforms: Uniforms = .{}, +started_ns: ?u64 = null, +last_ns: u64 = 0, + +/// Brings the passes to the chain the core holds, and takes in a finished +/// compile. Called each loop step, off the frame path. +pub fn sync(post: *Post, gpa: std.mem.Allocator, io: std.Io, device: *c.SDL_GPUDevice, format: c.SDL_GPUTextureFormat, core: *pardes.Pardes) void { + if (post.job) |job| { + if (!job.done.load(.acquire)) return; + job.thread.join(); + post.job = null; + post.collect(gpa, device, format, core, job); + } + const chain = &core.settings.post; + if (post.generation == chain.generation) return; + post.generation = chain.generation; + var next: [max]Pass = @splat(.{}); + for (chain.list(), 0..) |entry, i| { + if (entry.scene) |scene| { + if (post.bundled.get(scene) == null) post.bundled.set(scene, makePipeline(device, format, bundled_spv.get(scene)) catch null); + next[i] = .{ .scene = scene, .level = entry.level, .pipeline = post.bundled.get(scene) }; + continue; + } + // A file already in the chain keeps its pipeline and its path. + for (post.passes[0..post.len]) |*pass| { + if (pass.scene != null or !std.mem.eql(u8, pass.path, entry.path.get())) continue; + next[i] = pass.*; + pass.* = .{}; + break; + } else next[i] = .{ .path = gpa.dupe(u8, entry.path.get()) catch &.{} }; + } + for (post.passes[0..post.len]) |pass| { + if (pass.scene == null) if (pass.pipeline) |pipeline| c.SDL_ReleaseGPUGraphicsPipeline(device, pipeline); + gpa.free(pass.path); + } + post.passes = next; + post.len = chain.len; + // An emptied chain's clock starts again with the next pass put in it. + if (post.len == 0) { + post.started_ns = null; + post.last_ns = 0; + post.uniforms.frame = 0; + } + // The new files compile together, on a thread of their own. + const job = gpa.create(Job) catch return; + job.* = .{ .io = io, .gpa = gpa }; + for (post.passes[0..post.len]) |pass| { + if (pass.scene != null or pass.pipeline != null or pass.path.len == 0) continue; + job.paths[job.len] = gpa.dupe(u8, pass.path) catch continue; + job.len += 1; + } + if (job.len == 0) return gpa.destroy(job); + job.thread = std.Thread.spawn(.{}, compile, .{job}) catch { + for (job.paths[0..job.len]) |path| gpa.free(path); + return gpa.destroy(job); + }; + post.job = job; +} + +fn collect(post: *Post, gpa: std.mem.Allocator, device: *c.SDL_GPUDevice, format: c.SDL_GPUTextureFormat, core: *pardes.Pardes, job: *Job) void { + defer gpa.destroy(job); + for (job.paths[0..job.len], job.results[0..job.len]) |path, result| { + defer gpa.free(path); + const pass = for (post.passes[0..post.len]) |*pass| { + if (pass.scene == null and std.mem.eql(u8, pass.path, path)) break pass; + } else null; + var buf: [512]u8 = undefined; + switch (result) { + .none => {}, + .missing => if (!post.missing_said) { + post.missing_said = true; + core.setMessage(core.active, "Shader: glslc is not on PATH, so Shadertoy files do not run (Crt does)"); + }, + .failed => |text| { + defer gpa.free(text); + // glslc's first line says where: in the file's own lines. + const first = std.mem.sliceTo(text, '\n'); + core.setMessage(core.active, std.fmt.bufPrint(&buf, "Shader {s}: {s}", .{ path, first[0..@min(first.len, 400)] }) catch "Shader: compile failed"); + }, + .spirv => |spirv| { + defer gpa.free(spirv); + const target = pass orelse continue; + const made = makePipeline(device, format, spirv) catch { + core.setMessage(core.active, std.fmt.bufPrint(&buf, "Shader {s}: the GPU refused it", .{path}) catch "Shader: the GPU refused it"); + continue; + }; + if (target.pipeline) |old| c.SDL_ReleaseGPUGraphicsPipeline(device, old); + target.pipeline = made; + }, + } + } +} + +/// The compile thread: each file behind the prefix, through glslc with the +/// build's own flags (build.zig compileGlsl), source on stdin, SPIR-V on +/// stdout. +fn compile(job: *Job) void { + defer job.done.store(true, .release); + defer { + var event = std.mem.zeroes(c.SDL_Event); + event.type = c.SDL_EVENT_USER; + _ = c.SDL_PushEvent(&event); + } + for (job.paths[0..job.len], 0..) |path, i| job.results[i] = compileOne(job.gpa, job.io, path); +} + +fn compileOne(gpa: std.mem.Allocator, io: std.Io, path: []const u8) Job.Result { + var home_buf: [4096]u8 = undefined; + const expanded = if (std.mem.startsWith(u8, path, "~/")) if (libc.getenv("HOME")) |home| + std.fmt.bufPrint(&home_buf, "{s}/{s}", .{ std.mem.span(home), path[2..] }) catch path + else + path else path; + const body = filesystem.readFile(gpa, expanded) catch |err| + return .{ .failed = std.fmt.allocPrint(gpa, "cannot read it ({t})", .{err}) catch return .none }; + defer gpa.free(body); + // The prefix and the file go to glslc on its stdin: no file of ours is + // written anywhere. std's spawn does every allocation before fork and + // searches PATH on the stack after it (Io/Threaded.zig spawnPosix, + // posixExecv), so a child forked from this thread cannot wedge on a + // lock another thread held (the forkShell hazard). + var child = std.process.spawn(io, .{ + .argv = &.{ "glslc", "-fshader-stage=fragment", "-o", "-", "-" }, + .stdin = .pipe, + .stdout = .pipe, + .stderr = .pipe, + }) catch |err| return switch (err) { + error.FileNotFound => .missing, + else => .{ .failed = std.fmt.allocPrint(gpa, "glslc did not run ({t})", .{err}) catch return .none }, + }; + defer child.kill(io); + // glslc reads all of its input before it writes a byte, so writing it + // first cannot deadlock against a full output pipe. + { + var stdin = child.stdin.?; + child.stdin = null; + defer stdin.close(io); + var buf: [4096]u8 = undefined; + var writer = stdin.writer(io, &buf); + writer.interface.writeAll(prefix) catch {}; + writer.interface.writeAll(body) catch {}; + writer.interface.flush() catch {}; + } + var streams: std.Io.File.MultiReader.Buffer(2) = undefined; + var reader: std.Io.File.MultiReader = undefined; + reader.init(gpa, io, streams.toStreams(), &.{ child.stdout.?, child.stderr.? }); + defer reader.deinit(); + while (reader.fill(64, .none)) |_| { + if (reader.reader(0).buffered().len > 16 << 20 or reader.reader(1).buffered().len > 64 << 10) + return .{ .failed = gpa.dupe(u8, "glslc said too much") catch return .none }; + } else |err| switch (err) { + error.EndOfStream => {}, + else => return .{ .failed = gpa.dupe(u8, "reading glslc failed") catch return .none }, + } + const term = child.wait(io) catch return .{ .failed = gpa.dupe(u8, "glslc did not finish") catch return .none }; + const clean = switch (term) { + .exited => |code| code == 0, + else => false, + }; + if (clean) return .{ .spirv = reader.toOwnedSlice(0) catch return .none }; + const said = reader.toOwnedSlice(1) catch return .none; + // glslc calls its input <stdin>; the file is what a person knows. + defer gpa.free(said); + const named = std.mem.replaceOwned(u8, gpa, said, "<stdin>", path) catch return .{ .failed = gpa.dupe(u8, "glslc failed") catch return .none }; + return .{ .failed = named }; +} + +fn makePipeline(device: *c.SDL_GPUDevice, format: c.SDL_GPUTextureFormat, frag: []const u8) !*Pipeline { + const vs = try gui.makeShader(device, vert_spv, c.SDL_GPU_SHADERSTAGE_VERTEX, 0, 0); + defer c.SDL_ReleaseGPUShader(device, vs); + const fs = try gui.makeShader(device, frag, c.SDL_GPU_SHADERSTAGE_FRAGMENT, 1, 2); + defer c.SDL_ReleaseGPUShader(device, fs); + var target = c.SDL_GPUColorTargetDescription{ .format = format, .blend_state = std.mem.zeroes(c.SDL_GPUColorTargetBlendState) }; + var info = std.mem.zeroes(c.SDL_GPUGraphicsPipelineCreateInfo); + info.vertex_shader = vs; + info.fragment_shader = fs; + info.primitive_type = c.SDL_GPU_PRIMITIVETYPE_TRIANGLELIST; + info.rasterizer_state.fill_mode = c.SDL_GPU_FILLMODE_FILL; + info.rasterizer_state.cull_mode = c.SDL_GPU_CULLMODE_NONE; + info.multisample_state.sample_count = c.SDL_GPU_SAMPLECOUNT_1; + info.target_info = .{ .color_target_descriptions = &target, .num_color_targets = 1 }; + return c.SDL_CreateGPUGraphicsPipeline(device, &info) orelse error.GpuCreate; +} + +/// A pass is ready to draw. +pub fn ready(post: *const Post) bool { + for (post.passes[0..post.len]) |pass| if (pass.pipeline != null) return true; + return false; +} + +/// The chain redraws on its own (level A) as ShaderAnimation says. +pub fn animating(post: *const Post, mode: pardes.config.Runtime.ShaderAnimation) bool { + return post.ready() and switch (mode) { + .off => false, + .on => post.uniforms.focus != 0, + .always => true, + }; +} + +/// What a frame of the core's tells the passes: where its cursor is drawn +/// and in what, and the theme's colours. +pub const Frame = struct { + pub const Cursor = struct { x0: f32, y0: f32, x1: f32, y1: f32, rgb: [3]u8, text: [3]u8, bar: bool }; + cursor: ?Cursor, + background: [3]u8, + foreground: [3]u8, + selection_foreground: [3]u8, + selection_background: [3]u8, +}; + +fn rgba(rgb: [3]u8) [4]f32 { + return .{ @as(f32, @floatFromInt(rgb[0])) / 255, @as(f32, @floatFromInt(rgb[1])) / 255, @as(f32, @floatFromInt(rgb[2])) / 255, 1 }; +} + +/// Takes in a frame of the core's. The cursor's rectangle is (left, BOTTOM +/// edge, width, height) in framebuffer pixels, y down; a move or a new +/// colour makes the old one the previous and stamps the change. +pub fn describe(post: *Post, frame: Frame) void { + const u = &post.uniforms; + u.background_color = rgba(frame.background); + u.foreground_color = rgba(frame.foreground); + u.selection_foreground_color = rgba(frame.selection_foreground); + u.selection_background_color = rgba(frame.selection_background); + if (u.palette[1][3] == 0) for (&u.palette, 0..) |*slot, i| { + const color = ghostty_vt.color.default[i]; + slot.* = rgba(.{ color.r, color.g, color.b }); + }; + u.cursor_visible = @intFromBool(frame.cursor != null); + const cursor = frame.cursor orelse return; + const rect: [4]f32 = .{ cursor.x0, cursor.y1, cursor.x1 - cursor.x0, cursor.y1 - cursor.y0 }; + const style: i32 = if (cursor.bar) 2 else 0; + const color = rgba(cursor.rgb); + u.cursor_color = color; + u.cursor_text = rgba(cursor.text); + if (std.meta.eql(rect, u.current_cursor) and std.meta.eql(color, u.current_cursor_color) and style == u.current_cursor_style) return; + u.previous_cursor = u.current_cursor; + u.previous_cursor_color = u.current_cursor_color; + u.previous_cursor_style = u.current_cursor_style; + u.current_cursor = rect; + u.current_cursor_color = color; + u.current_cursor_style = style; + u.cursor_change_time = u.time; +} + +/// The window gained or lost the focus. +pub fn focus(post: *Post, focused: bool) void { + if (focused and post.uniforms.focus == 0) post.uniforms.time_focus = post.uniforms.time; + post.uniforms.focus = @intFromBool(focused); +} + +/// The pointer, in framebuffer pixels: Shadertoy's iMouse, xy where it is, +/// zw where the last press was, negative once released. +pub fn mouse(post: *Post, x: f32, y: f32, press: ?bool) void { + const m = &post.uniforms.mouse; + m[0] = x; + m[1] = y; + if (press) |down| { + if (down) { + m[2] = x; + m[3] = y; + } else { + m[2] = -@abs(m[2]); + m[3] = -@abs(m[3]); + } + } +} + +/// Runs the passes over `source`, the finished frame, into `target`: each +/// reads the one before, the ones between write two ping-pong textures that +/// start cleared, and iTime and iFrame move by this one draw. +pub fn draw(post: *Post, device: *c.SDL_GPUDevice, cmd: *c.SDL_GPUCommandBuffer, sampler: *c.SDL_GPUSampler, format: c.SDL_GPUTextureFormat, source: *c.SDL_GPUTexture, target: *c.SDL_GPUTexture, w: u32, h: u32, now_ns: u64, opaque_window: bool) !void { + var live: usize = 0; + for (post.passes[0..post.len]) |pass| live += @intFromBool(pass.pipeline != null); + if (live == 0) return; + if (live > 1 and (post.ping[0] == null or post.ping_w != w or post.ping_h != h)) { + for (&post.ping) |*texture| { + if (texture.*) |old| c.SDL_ReleaseGPUTexture(device, old); + var info = std.mem.zeroes(c.SDL_GPUTextureCreateInfo); + info.type = c.SDL_GPU_TEXTURETYPE_2D; + info.format = format; + info.usage = c.SDL_GPU_TEXTUREUSAGE_COLOR_TARGET | c.SDL_GPU_TEXTUREUSAGE_SAMPLER; + info.width = w; + info.height = h; + info.layer_count_or_depth = 1; + info.num_levels = 1; + info.sample_count = c.SDL_GPU_SAMPLECOUNT_1; + texture.* = c.SDL_CreateGPUTexture(device, &info) orelse return error.GpuCreate; + } + post.ping_w = w; + post.ping_h = h; + } + const u = &post.uniforms; + const started = post.started_ns orelse now_ns; + post.started_ns = started; + const elapsed = @as(f64, @floatFromInt(now_ns -| started)) / std.time.ns_per_s; + const delta: f32 = if (post.last_ns == 0) 0 else @floatCast(@as(f64, @floatFromInt(now_ns -| post.last_ns)) / std.time.ns_per_s); + post.last_ns = now_ns; + u.time = @floatCast(elapsed); + u.time_delta = delta; + u.frame_rate = if (delta > 0) 1 / delta else 60; + u.resolution = .{ @floatFromInt(w), @floatFromInt(h), 1 }; + u.channel_resolution[0] = .{ @floatFromInt(w), @floatFromInt(h), 1, 0 }; + // UTC: the year, the month from 0, the day, the second of the day. + var wall: libc.timespec = undefined; + if (libc.clock_gettime(.REALTIME, &wall) != 0) wall.sec = 0; + const epoch: std.time.epoch.EpochSeconds = .{ .secs = @intCast(@max(0, wall.sec)) }; + const day = epoch.getEpochDay().calculateYearDay(); + const month = day.calculateMonthDay(); + u.date = .{ @floatFromInt(day.year), @floatFromInt(month.month.numeric() - 1), @floatFromInt(month.day_index + 1), @floatFromInt(epoch.getDaySeconds().secs) }; + + var input = source; + var index: usize = 0; + for (post.passes[0..post.len]) |pass| { + const pipeline = pass.pipeline orelse continue; + index += 1; + const last = index == live; + const output = if (last) target else post.ping[index % 2].?; + var info = std.mem.zeroes(c.SDL_GPUColorTargetInfo); + info.texture = output; + info.load_op = if (last) c.SDL_GPU_LOADOP_DONT_CARE else c.SDL_GPU_LOADOP_CLEAR; + info.store_op = c.SDL_GPU_STOREOP_STORE; + const pass_rp = c.SDL_BeginGPURenderPass(cmd, &info, 1, null); + c.SDL_BindGPUGraphicsPipeline(pass_rp, pipeline); + const binding = c.SDL_GPUTextureSamplerBinding{ .texture = input, .sampler = sampler }; + c.SDL_BindGPUFragmentSamplers(pass_rp, 0, &binding, 1); + c.SDL_PushGPUFragmentUniformData(cmd, 0, u, @sizeOf(Uniforms)); + const own: [4]f32 = .{ @floatFromInt(@intFromBool(opaque_window)), @floatFromInt(pass.level), 0, 0 }; + c.SDL_PushGPUFragmentUniformData(cmd, 1, &own, @sizeOf(@TypeOf(own))); + c.SDL_DrawGPUPrimitives(pass_rp, 3, 1, 0, 0); + c.SDL_EndGPURenderPass(pass_rp); + input = output; + } + u.frame +%= 1; +} + +pub fn deinit(post: *Post, gpa: std.mem.Allocator, device: *c.SDL_GPUDevice) void { + if (post.job) |job| { + job.thread.join(); + for (job.paths[0..job.len], job.results[0..job.len]) |path, result| { + gpa.free(path); + switch (result) { + .spirv, .failed => |bytes| gpa.free(bytes), + .none, .missing => {}, + } + } + gpa.destroy(job); + } + for (post.passes[0..post.len]) |pass| { + if (pass.scene == null) if (pass.pipeline) |pipeline| c.SDL_ReleaseGPUGraphicsPipeline(device, pipeline); + gpa.free(pass.path); + } + for (post.bundled.values) |pipeline| if (pipeline) |p| c.SDL_ReleaseGPUGraphicsPipeline(device, p); + for (post.ping) |texture| if (texture) |t| c.SDL_ReleaseGPUTexture(device, t); +} + +/// ghostty 1.3.2's Uniforms (src/renderer/shadertoy.zig), copied: the offsets +/// ours must match. Its last two names are swapped against its own GLSL. +const GhosttyUniforms = extern struct { + resolution: [3]f32 align(16), + time: f32 align(4), + time_delta: f32 align(4), + frame_rate: f32 align(4), + frame: i32 align(4), + channel_time: [4][4]f32 align(16), + channel_resolution: [4][4]f32 align(16), + mouse: [4]f32 align(16), + date: [4]f32 align(16), + sample_rate: f32 align(4), + current_cursor: [4]f32 align(16), + previous_cursor: [4]f32 align(16), + current_cursor_color: [4]f32 align(16), + previous_cursor_color: [4]f32 align(16), + current_cursor_style: i32 align(4), + previous_cursor_style: i32 align(4), + cursor_visible: i32 align(4), + cursor_change_time: f32 align(4), + time_focus: f32 align(4), + focus: i32 align(4), + palette: [256][4]f32 align(16), + background_color: [4]f32 align(16), + foreground_color: [4]f32 align(16), + cursor_color: [4]f32 align(16), + cursor_text: [4]f32 align(16), + selection_background_color: [4]f32 align(16), + selection_foreground_color: [4]f32 align(16), +}; + +test "the uniform block is ghostty's, offset for offset, and the prefix names it in that order" { + const ours = @typeInfo(Uniforms).@"struct".fields; + const theirs = @typeInfo(GhosttyUniforms).@"struct".fields; + try std.testing.expectEqual(theirs.len, ours.len); + try std.testing.expectEqual(@sizeOf(GhosttyUniforms), @sizeOf(Uniforms)); + inline for (ours, theirs) |a, b| { + try std.testing.expectEqual(@offsetOf(GhosttyUniforms, b.name), @offsetOf(Uniforms, a.name)); + try std.testing.expectEqual(b.type, a.type); + } + // By NAME: iSelectionForegroundColor sits where ghostty's Zig says + // selection_background, which is where its GLSL puts the foreground. + try std.testing.expectEqual(@offsetOf(GhosttyUniforms, "selection_background_color"), @offsetOf(Uniforms, "selection_foreground_color")); + // The prefix's block, member by member, in ghostty's GLSL names and types. + const glsl = [_]struct { []const u8, []const u8 }{ + .{ "vec3", "iResolution" }, .{ "float", "iTime" }, .{ "float", "iTimeDelta" }, + .{ "float", "iFrameRate" }, .{ "int", "iFrame" }, .{ "float", "iChannelTime[4]" }, + .{ "vec3", "iChannelResolution[4]" }, .{ "vec4", "iMouse" }, .{ "vec4", "iDate" }, + .{ "float", "iSampleRate" }, .{ "vec4", "iCurrentCursor" }, .{ "vec4", "iPreviousCursor" }, + .{ "vec4", "iCurrentCursorColor" }, .{ "vec4", "iPreviousCursorColor" }, .{ "int", "iCurrentCursorStyle" }, + .{ "int", "iPreviousCursorStyle" }, .{ "int", "iCursorVisible" }, .{ "float", "iTimeCursorChange" }, + .{ "float", "iTimeFocus" }, .{ "int", "iFocus" }, .{ "vec3", "iPalette[256]" }, + .{ "vec3", "iBackgroundColor" }, .{ "vec3", "iForegroundColor" }, .{ "vec3", "iCursorColor" }, + .{ "vec3", "iCursorText" }, .{ "vec3", "iSelectionForegroundColor" }, .{ "vec3", "iSelectionBackgroundColor" }, + }; + try std.testing.expectEqual(ours.len, glsl.len); + const block = prefix[std.mem.indexOf(u8, prefix, "uniform Globals {").?..]; + var lines = std.mem.tokenizeScalar(u8, block[0..std.mem.indexOfScalar(u8, block, '}').?], '\n'); + _ = lines.next(); + for (glsl) |member| { + var words = std.mem.tokenizeAny(u8, lines.next().?, " ;"); + try std.testing.expectEqualStrings("uniform", words.next().?); + try std.testing.expectEqualStrings(member[0], words.next().?); + try std.testing.expectEqualStrings(member[1], words.next().?); + } + try std.testing.expect(lines.next() == null); +} + +test "a moved cursor becomes the previous one, stamped with the time of the move" { + var post: Post = .{}; + const frame: Frame = .{ .cursor = .{ .x0 = 10, .y0 = 20, .x1 = 11, .y1 = 40, .rgb = .{ 255, 0, 0 }, .text = .{ 0, 0, 0 }, .bar = true }, .background = .{ 0, 0, 0 }, .foreground = .{ 255, 255, 255 }, .selection_foreground = .{ 1, 2, 3 }, .selection_background = .{ 4, 5, 6 } }; + post.uniforms.time = 1.5; + post.describe(frame); + // Left, BOTTOM edge, width, height, in framebuffer pixels, y down. + try std.testing.expectEqual([4]f32{ 10, 40, 1, 20 }, post.uniforms.current_cursor); + try std.testing.expectEqual(@as(i32, 2), post.uniforms.current_cursor_style); + try std.testing.expectEqual(@as(f32, 1.5), post.uniforms.cursor_change_time); + post.uniforms.time = 2; + post.describe(frame); + try std.testing.expectEqual(@as(f32, 1.5), post.uniforms.cursor_change_time); + var moved = frame; + moved.cursor.?.x0 = 20; + moved.cursor.?.x1 = 21; + post.describe(moved); + try std.testing.expectEqual([4]f32{ 10, 40, 1, 20 }, post.uniforms.previous_cursor); + try std.testing.expectEqual(@as(f32, 2), post.uniforms.cursor_change_time); + try std.testing.expectEqual([4]f32{ 1.0 / 255.0, 2.0 / 255.0, 3.0 / 255.0, 1 }, post.uniforms.selection_foreground_color); +} + +test "ghostty's test shaders compile behind the prefix, and its invalid one fails with glslc's words" { + const gpa = std.testing.allocator; + const io = std.testing.io; + // ghostty's own test shaders, from its package in zig-pkg. + var pkg = std.Io.Dir.cwd().openDir(io, "zig-pkg", .{ .iterate = true }) catch return error.SkipZigTest; + defer pkg.close(io); + var it = pkg.iterate(); + const ghostty = while (it.next(io) catch null) |entry| { + if (std.mem.startsWith(u8, entry.name, "ghostty-")) break entry.name; + } else return error.SkipZigTest; + var buf: [512]u8 = undefined; + for ([_][]const u8{ "crt", "focus", "invalid" }) |name| { + const path = try std.fmt.bufPrint(&buf, "zig-pkg/{s}/src/renderer/shaders/test_shadertoy_{s}.glsl", .{ ghostty, name }); + const result = compileOne(gpa, io, path); + switch (result) { + .missing => return error.SkipZigTest, // no glslc here + .spirv => |spirv| { + defer gpa.free(spirv); + try std.testing.expect(!std.mem.eql(u8, name, "invalid")); + // SPIR-V's magic number, little-endian. + try std.testing.expectEqual(@as(u32, 0x07230203), std.mem.readInt(u32, spirv[0..4], .little)); + }, + .failed => |text| { + defer gpa.free(text); + try std.testing.expectEqualStrings("invalid", name); + // Named by the file, not by glslc's <stdin>. + try std.testing.expect(std.mem.indexOf(u8, text, path) != null); + try std.testing.expect(std.mem.indexOf(u8, text, "<stdin>") == null); + }, + .none => return error.TestUnexpectedResult, + } + } +} diff --git a/src/gui/crt.zig b/src/gui/crt.zig deleted file mode 100644 index 2a5ea7e4..00000000 --- a/src/gui/crt.zig +++ /dev/null @@ -1,101 +0,0 @@ -//! The Crt builtin's screen geometry, shared between the gui shell's input -//! mapping and its shader: crt.frag.glsl shows the scene point -//! uv' = cc*(1 + barrel*r2) at screen point cc, so a physical mouse position -//! must pass through the SAME forward transform before it becomes a cell. -//! Pure std, so the unit-test step can pin it against the shader formula. - -const std = @import("std"); - -/// MUST match BARREL in shaders/crt.frag.glsl. -pub const barrel: f32 = 0.016; - -pub const Point = struct { x: f32, y: f32 }; -pub const Effects = struct { crt: bool = false, ripple: bool = false, glitch: bool = false }; -pub const Frame = struct { effects: Effects = .{}, time_seconds: f32 = 0 }; - -fn fract(x: f32) f32 { - return x - @floor(x); -} - -fn smoothstep(lo: f32, hi: f32, value: f32) f32 { - const t = std.math.clamp((value - lo) / (hi - lo), 0, 1); - return t * t * (3 - 2 * t); -} - -/// Match `sceneUv` in crt.frag.glsl. This is a forward screen→sample mapping: -/// a physical pointer is sent to the logical scene pixel displayed under it. -pub fn mapScene(x: f32, y: f32, w: f32, h: f32, effects: Effects, time_seconds: f32) ?Point { - const safe_w = @max(1, w); - const safe_h = @max(1, h); - const ccx = x / safe_w * 2.0 - 1.0; - const ccy = y / safe_h * 2.0 - 1.0; - const s = 1.0 + barrel * (ccx * ccx + ccy * ccy) * @as(f32, @floatFromInt(@intFromBool(effects.crt))); - var u = ccx * s * 0.5 + 0.5; - var v = ccy * s * 0.5 + 0.5; - // The CRT shader paints no scene when this barrel-mapped coordinate lies - // on or beyond the tube edge. There is no logical edge cell under those - // black pixels, so input must be inert there rather than clamped. - if (effects.crt and (u <= 0 or u >= 1 or v <= 0 or v >= 1)) return null; - if (effects.ripple) { - const cx = u - 0.5; - const cy = v - 0.5; - const radius = @sqrt(cx * cx + cy * cy); - const envelope = 1.0 - smoothstep(0.04, 0.72, radius); - const wave = @sin(radius * 42.0 - time_seconds * 5.2); - const len = @max(radius, 0.00001); - u += cx / len * wave * envelope * 0.0032; - v += cy / len * wave * envelope * 0.0032; - } - if (effects.glitch) { - const band = @floor(v * 96.0); - const tick = @floor(time_seconds * 13.0); - const seed = noiseAt(band, tick); - const tear = smoothstep(0.955, 1.0, seed); - u += (noiseAt(seed, band) - 0.5) * tear * 0.020; - } - return .{ - .x = std.math.clamp(u * safe_w, 0, safe_w - 1), - .y = std.math.clamp(v * safe_h, 0, safe_h - 1), - }; -} - -fn noiseAt(x: f32, y: f32) f32 { - var qx = fract(x * 0.1031); - var qy = fract(y * 0.1031); - var qz = fract(x * 0.1031); - const d = qx * (qy + 33.33) + qy * (qz + 33.33) + qz * (qx + 33.33); - qx += d; - qy += d; - qz += d; - return fract((qx + qy) * qz); -} - -test "map matches the shader's barrel formula" { - // center is a fixed point - const center = mapScene(500, 250, 1000, 500, .{ .crt = true }, 0).?; - try std.testing.expectApproxEqAbs(@as(f32, 500), center.x, 0.001); - try std.testing.expectApproxEqAbs(@as(f32, 250), center.y, 0.001); - // Corners barrel beyond the tube and are black/inert in the shader. - try std.testing.expect(mapScene(0, 0, 1000, 500, .{ .crt = true }, 0) == null); - try std.testing.expect(mapScene(1000, 500, 1000, 500, .{ .crt = true }, 0) == null); - // (100,100) of 1000x500: cc=(-0.8,-0.6), r2=1.0, s=1.016 -> - // cc'=(-0.8128,-0.6096) -> (93.6, 97.6) - const near_edge = mapScene(100, 100, 1000, 500, .{ .crt = true }, 0).?; - try std.testing.expectApproxEqAbs(@as(f32, 93.6), near_edge.x, 0.01); - try std.testing.expectApproxEqAbs(@as(f32, 97.6), near_edge.y, 0.01); - // (900,250): cc=(0.8,0), r2=0.64, s=1.01024 -> x'=904.096 - const side = mapScene(900, 250, 1000, 500, .{ .crt = true }, 0).?; - try std.testing.expectApproxEqAbs(@as(f32, 904.096), side.x, 0.01); -} - -test "scene mapping composes ripple and deterministic glitch" { - const plain = mapScene(300, 200, 800, 600, .{}, 2.5).?; - try std.testing.expectApproxEqAbs(@as(f32, 300), plain.x, 0.001); - try std.testing.expectApproxEqAbs(@as(f32, 200), plain.y, 0.001); - const ripple = mapScene(300, 200, 800, 600, .{ .ripple = true }, 2.5).?; - try std.testing.expect(ripple.x != plain.x or ripple.y != plain.y); - try std.testing.expectEqual( - mapScene(300, 200, 800, 600, .{ .glitch = true }, 2.5).?, - mapScene(300, 200, 800, 600, .{ .glitch = true }, 2.5).?, - ); -} diff --git a/src/gui/gui.zig b/src/gui/gui.zig index 8f6248ce..5bc1ea6d 100644 --- a/src/gui/gui.zig +++ b/src/gui/gui.zig @@ -12,7 +12,7 @@ const look = @import("../look.zig"); const message = pardes.Messages.Message; const file_watch = @import("../file_watch.zig"); const deck = @import("deck.zig"); -const crt = @import("crt.zig"); +const Post = @import("Post.zig"); const pet = @import("pet.zig"); const fonts = @import("../fonts.zig"); // the Font builtin's half of the seam const selection_pipe = @import("../selection_pipe.zig"); @@ -21,6 +21,7 @@ const c_heap = @import("c_heap"); const ninep_io = @import("../9p_io.zig"); const detached_client = @import("../detached/client.zig"); +const tracy = @import("../tracy.zig"); pub const c = @cImport({ @cDefine("SDL_DISABLE_OLD_NAMES", "1"); @@ -37,12 +38,11 @@ const log = std.log.scoped(.gui); const font_ttf = @embedFile("AdwaitaMono-Regular.ttf"); const vert_spv = @embedFile("ui.vert.spv"); const frag_spv = @embedFile("ui.frag.spv"); +const decor_frag_spv = @embedFile("decor.frag.spv"); const overlay_vert_spv = @embedFile("overlay.vert.spv"); const overlay_frag_spv = @embedFile("overlay.frag.spv"); const image_vert_spv = @embedFile("image.vert.spv"); const image_frag_spv = @embedFile("image.frag.spv"); -const crt_vert_spv = @embedFile("crt.vert.spv"); -const crt_frag_spv = @embedFile("crt.frag.spv"); const bg_default = [3]u8{ 18, 18, 18 }; const fg_default = [3]u8{ 204, 204, 204 }; @@ -200,55 +200,17 @@ const touch_click_flash_max_frames: u8 = 14; const touch_click_flash_vertices: usize = 1400; const touch_scroll_tick: f32 = 0.02; -const AnimationClock = struct { - next_ns: u64 = 0, - - fn due(clock: *AnimationClock, active: bool, now_ns: u64) bool { - if (!active) { - clock.next_ns = 0; - return false; - } - if (clock.next_ns == 0) { - clock.next_ns = now_ns +| pardes.layout.Animation.frame_ns; - return false; - } - if (now_ns < clock.next_ns) return false; - clock.next_ns = now_ns +| pardes.layout.Animation.frame_ns; - return true; - } -}; - -fn finishPresentedAnimationFrame( - clock: *AnimationClock, - core: *pardes.Pardes, - tracks: []const pardes.layout.Track, - now_ns: u64, -) void { - core.acknowledgePanelPresentation(tracks); - if (clock.due(core.animationActive(), now_ns)) core.update(.tick); -} - -test "GUI animation clock is active-only and cadence gated" { - var clock: AnimationClock = .{}; - try std.testing.expect(!clock.due(false, 100)); - try std.testing.expect(!clock.due(true, 100)); - try std.testing.expect(!clock.due(true, 100 + pardes.layout.Animation.frame_ns - 1)); - try std.testing.expect(clock.due(true, 100 + pardes.layout.Animation.frame_ns)); - try std.testing.expect(!clock.due(false, 100 + 2 * pardes.layout.Animation.frame_ns)); - try std.testing.expectEqual(@as(u64, 0), clock.next_ns); -} - -test "a persistent scene presents a new panel's frame zero before advancing it" { +test "a new panel's frame zero is presented before it advances" { const core = try pardes.Pardes.init(std.testing.allocator, .{ .tty_only = true }); defer core.deinit(); var arena: std.heap.ArenaAllocator = .init(std.testing.allocator); defer arena.deinit(); - var clock: AnimationClock = .{}; + const frame = pardes.animation.frame_ns; - core.settings.scene_effects.crt = true; - const scene_frame = try core.render(arena.allocator()); - finishPresentedAnimationFrame(&clock, core, scene_frame.panelTracks(), 100); - try std.testing.expectEqual(@as(u64, 100 + pardes.layout.Animation.frame_ns), clock.next_ns); + core.advance(100); + const idle = try core.render(arena.allocator()); + core.acknowledgePanelPresentation(idle.panelTracks()); + try std.testing.expectEqual(@as(?u64, null), core.nextWake()); core.settings.panel_transition = .slide; core.update(.{ .command = "Newcol" }); @@ -258,22 +220,21 @@ test "a persistent scene presents a new panel's frame zero before advancing it" try std.testing.expect(track_count > 0); for (first.panelTracks()) |track| try std.testing.expectEqual(@as(u16, 0), track.frame); - finishPresentedAnimationFrame( - &clock, - core, - first.panelTracks(), - 100 + pardes.layout.Animation.frame_ns, - ); + core.acknowledgePanelPresentation(first.panelTracks()); + // Just short of a frame is no frame at all. + core.advance(100 + frame - 1); + _ = arena.reset(.retain_capacity); + for ((try core.render(arena.allocator())).panelTracks()) |track| try std.testing.expectEqual(@as(u16, 0), track.frame); + core.advance(100 + frame); _ = arena.reset(.retain_capacity); const second = try core.render(arena.allocator()); try std.testing.expectEqual(track_count, second.panelTracks().len); for (second.panelTracks()) |track| try std.testing.expectEqual(@as(u16, 1), track.frame); } -// Per pane: background, rule, two grip strokes, two square rails, and the -// rule under each of its notice chips. -const pane_chrome_vertices: usize = 6 * (6 + pardes.Pane.Notices.max); -const max_overlay_vertices: usize = 24 + pet.max_vertices + pardes.MAX_COLS * 6 + pardes.MAX_PANES * pane_chrome_vertices + touch_click_flash_vertices + max_touch_points * (1100 + max_touch_trail_points * overlay_circle_vertices); +// The triangle overlay holds only the pet and the touch view: the chrome is +// decor. +const max_overlay_vertices: usize = pet.max_vertices + touch_click_flash_vertices + max_touch_points * (1100 + max_touch_trail_points * overlay_circle_vertices); const font_px_step: f32 = 2.0; const font_px_min: f32 = 8.0; @@ -480,6 +441,11 @@ const CellInstance = extern struct { progress_bits: u32 = @bitCast(@as(f32, 1)), serial: u32 = 0, cell_coord: u32 = 0, + /// A clip rectangle in target pixels; x1 < x0 is none (ui.vert.glsl). + clip_x0: f32 = 0, + clip_y0: f32 = 0, + clip_x1: f32 = -1, + clip_y1: f32 = -1, }; const OverlayVertex = extern struct { @@ -557,8 +523,8 @@ const SavedImagePlace = struct { const PreparedImage = struct { place: SavedImagePlace, texture: *c.SDL_GPUTexture, - track: ?pardes.layout.Track = null, - clip: ?pardes.layout.Box = null, + track: ?pardes.animation.Track = null, + clip: ?pardes.animation.Box = null, old_layer: bool = false, }; @@ -582,7 +548,8 @@ test "saved native placement retains identity and geometry but no producer bytes } test "shader instance ABI carries aligned transition vectors" { - try std.testing.expectEqual(@as(usize, 104), @sizeOf(CellInstance)); + try std.testing.expectEqual(@as(usize, 120), @sizeOf(CellInstance)); + try std.testing.expectEqual(@as(usize, 104), @offsetOf(CellInstance, "clip_x0")); try std.testing.expectEqual(@as(usize, 56), @offsetOf(CellInstance, "panel_x0")); try std.testing.expectEqual(@as(usize, 72), @offsetOf(CellInstance, "present_x0")); try std.testing.expectEqual(@as(usize, 88), @offsetOf(CellInstance, "effect")); @@ -592,43 +559,52 @@ test "shader instance ABI carries aligned transition vectors" { try std.testing.expectEqual(@as(usize, 64), @offsetOf(ImageInstance, "effect")); try std.testing.expectEqual(@as(usize, 32), @sizeOf([8]f32)); - const tracks = [_]pardes.layout.Track{ + const tracks = [_]pardes.animation.Track{ .{ .pane = 0, .phase = .opening, .effect = .slide }, .{ .pane = 1, .phase = .moving, .effect = .slide }, .{ .pane = 2, .phase = .moving, .effect = .slide }, }; - const plan = makePaintPlan(&tracks, true); - try std.testing.expectEqual(@as(usize, 4), plan.len); - try std.testing.expect(plan.batches[0].track == null); - try std.testing.expectEqual(@as(u8, 1), plan.batches[1].track.?.pane); - try std.testing.expectEqual(@as(u8, 2), plan.batches[2].track.?.pane); - try std.testing.expectEqual(@as(u8, 0), plan.batches[3].track.?.pane); + // Tier 0, the tracks as the core ordered them, then tiers 4 and 5. + const groups = makeGroups(&tracks, true); + try std.testing.expectEqual(@as(usize, 7), groups.len); + try std.testing.expect(groups.items[0].track == null); + try std.testing.expectEqual(@as(u8, 0), groups.items[1].track.?.pane); + try std.testing.expectEqual(@as(u8, 1), groups.items[2].track.?.pane); + try std.testing.expectEqual(@as(u8, 2), groups.items[3].track.?.pane); + try std.testing.expectEqual(@as(usize, 4), groups.notices); + try std.testing.expectEqual(@as(usize, 5), groups.guides); + try std.testing.expectEqual(@as(usize, 6), groups.ink); + for ([_]usize{ groups.notices, groups.guides, groups.ink }) |index| try std.testing.expect(groups.items[index].track == null); } test "GUI paint plan snaps history effects without a frozen grid" { - const tracks = [_]pardes.layout.Track{ + const tracks = [_]pardes.animation.Track{ .{ .pane = 0, .phase = .opening, .effect = .ascii }, .{ .pane = 1, .phase = .closing, .effect = .vertical }, }; - try std.testing.expectEqual(@as(usize, 1), makePaintPlan(&tracks, false).len); - const ready = makePaintPlan(&tracks, true); - try std.testing.expectEqual(@as(usize, 3), ready.len); - try std.testing.expectEqual(pardes.layout.Phase.opening, ready.batches[1].track.?.phase); - try std.testing.expectEqual(pardes.layout.Phase.closing, ready.batches[2].track.?.phase); + try std.testing.expectEqual(@as(usize, 0), makeGroups(&tracks, false).tracks); + const ready = makeGroups(&tracks, true); + try std.testing.expectEqual(@as(usize, 2), ready.tracks); + try std.testing.expectEqual(pardes.animation.Phase.opening, ready.items[1].track.?.phase); + try std.testing.expectEqual(pardes.animation.Phase.closing, ready.items[2].track.?.phase); } test "closing tombstone overlays but never owns canonical cells" { - const closing: pardes.layout.Track = .{ + const closing: pardes.animation.Track = .{ .pane = 0, .phase = .closing, .effect = .vertical, .from = .{ .x = 2, .y = 3, .w = 10, .h = 4 }, .to = .{ .x = 2, .y = -1, .w = 10, .h = 4 }, }; - const plan = makePaintPlan(&.{closing}, true); - try std.testing.expectEqual(@as(usize, 0), paintBatchAt(&plan, 4, 4)); - try std.testing.expectEqual(@as(usize, 2), plan.len); - try std.testing.expectEqual(pardes.layout.Phase.closing, plan.batches[1].track.?.phase); + const groups = makeGroups(&.{closing}, true); + try std.testing.expectEqual(@as(usize, 0), groupAt(&groups, 4, 4)); + // A still pane's notice stays under the tombstone sliding over it. + const notice: pardes.Layer = .{ .kind = .notice, .viewport = .{ .x = 4, .y = 4, .w = 3, .h = 1 }, .rows = 1 }; + try std.testing.expectEqual(@as(usize, 0), noticeGroup(&groups, ¬ice)); + try std.testing.expectEqual(makeGroups(&.{}, false).notices, noticeGroup(&makeGroups(&.{}, false), ¬ice)); + try std.testing.expectEqual(@as(usize, 1), groups.tracks); + try std.testing.expectEqual(pardes.animation.Phase.closing, groups.items[1].track.?.phase); } fn updateCoreResize(core: *pardes.Pardes, cols: u16, rows: u16, cell_w: u32, cell_h: u32, tag_w: u32, tag_h: u32) bool { @@ -1660,7 +1636,7 @@ test "GUI LSP worker limit rejects before allocation and recovers after owned wo try std.testing.expect(core.lsp_wait == null); try std.testing.expectEqualStrings("abc", pane.file.?.content); try std.testing.expectEqual(@as(i32, 1), pane.body.cur_col); - try std.testing.expect(std.mem.indexOf(u8, pane.msg[0..pane.msg_len], "WorkersBusy") != null); + try std.testing.expect(std.mem.indexOf(u8, pane.msg[0..pane.msg_len], "workers busy") != null); try std.testing.expectEqual(@as(usize, 0), failing.alloc_index); try std.testing.expect(!failing.has_induced_failure); try std.testing.expectEqual(rejected, queue.lsp_id.?); @@ -1791,9 +1767,9 @@ const Gui = struct { device: *c.SDL_GPUDevice, swapchain_format: c.SDL_GPUTextureFormat, pipeline: *c.SDL_GPUGraphicsPipeline, + decor_pipeline: *c.SDL_GPUGraphicsPipeline, overlay_pipeline: *c.SDL_GPUGraphicsPipeline, image_pipeline: *c.SDL_GPUGraphicsPipeline, - crt_pipeline: *c.SDL_GPUGraphicsPipeline, atlas_tex: *c.SDL_GPUTexture, atlas_sampler: *c.SDL_GPUSampler, linear_sampler: *c.SDL_GPUSampler, @@ -1810,9 +1786,11 @@ const Gui = struct { native_images: std.AutoHashMapUnmanaged(pardes.ImageCacheKey, *c.SDL_GPUTexture) = .empty, presented_images: std.ArrayListUnmanaged(SavedImagePlace) = .empty, prepared_images: std.ArrayListUnmanaged(PreparedImage) = .empty, - /// renderFrame's cover of the grid by layers (coverLayers): this frame's - /// layers, then the layers a panel transition is leaving. - layer_cover: std.ArrayListUnmanaged(bool) = .empty, + /// renderFrame's cover of the grid (coverFrame): this frame's, then the + /// frame a panel transition is leaving. + cover: std.ArrayListUnmanaged(Cover) = .empty, + /// renderFrame's decor instances, group by group (buildDecor). + decor: std.ArrayListUnmanaged(CellInstance) = .empty, font: *c.UIFont, font_bytes: []u8 = &.{}, @@ -1825,8 +1803,8 @@ const Gui = struct { tagline_percent: u8, tagline_width: u32, tagline_height: u32, - attached_layers: ?*const [pardes.MAX_PANES]pardes.BodyLayer = null, - attached_tag_layers: ?*const [pardes.MAX_TAG_LAYERS]pardes.TagLayer = null, + attached_layers: ?*const [pardes.MAX_PANES]pardes.Layer = null, + attached_tag_layers: ?*const [pardes.MAX_TAG_LAYERS]pardes.Layer = null, cell_w: u32, cell_h: u32, ascent: i32, @@ -1864,7 +1842,8 @@ const Gui = struct { scene_tex_h: u32 = 0, scene_failures: u8 = 0, scene_target_failed: bool = false, - presented_scene: crt.Frame = .{}, + /// The post chain, run over the frame in scene_tex. + post: Post = .{}, pointer_present: bool = false, arrow_cursor: ?*c.SDL_Cursor = null, link_cursor: ?*c.SDL_Cursor = null, @@ -2003,7 +1982,9 @@ fn windowCells(g: *const Gui) GridCells { }; } -fn windowPointToPixels(geometry: WindowGeometry, x: f32, y: f32) crt.Point { +const Point = struct { x: f32, y: f32 }; + +fn windowPointToPixels(geometry: WindowGeometry, x: f32, y: f32) Point { return .{ .x = x * geometry.pixel_w / geometry.window_w, .y = y * geometry.pixel_h / geometry.window_h, @@ -2017,7 +1998,7 @@ test "high-density window coordinates map once to render pixels" { .pixel_w = 1120, .pixel_h = 720, }; - try std.testing.expectEqual(crt.Point{ .x = 700, .y = 240 }, windowPointToPixels(geometry, 350, 120)); + try std.testing.expectEqual(Point{ .x = 700, .y = 240 }, windowPointToPixels(geometry, 350, 120)); } fn fixedCellLayout(g: *const Gui) CellLayout { @@ -2040,64 +2021,152 @@ fn taglineLayoutForCell(g: *const Gui, col: u16) CellLayout { return compactTaglineLayout(g, @floatFromInt(col)); } -const boxContains = pardes.layout.Box.contains; +const boxContains = pardes.animation.Box.contains; -const PaintBatch = struct { - track: ?pardes.layout.Track = null, +/// What one tier draws, or one track in tiers 2 and 3 (docs/render-pipeline.md +/// §3.4), in this order: its cells, its images, then its decor. +const Group = struct { + track: ?pardes.animation.Track = null, cell_start: u32 = 0, cell_count: u32 = 0, image_start: u32 = 0, image_count: u32 = 0, + decor_start: u32 = 0, + decor_count: u32 = 0, }; -const PaintPlan = struct { - batches: [pardes.MAX_PANES * 2 + 1]PaintBatch = @splat(.{}), - len: usize = 1, +/// The frame's draw groups, bottom to top: tier 0 (the page and the panes +/// standing still), a group for each track in paint order (tier 2 moving and +/// opening, tier 3 closing), tier 4 (floating: the notices, then the guides +/// and the debug box, which the core paints over them) and tier 5 (ink: the +/// bar cursors; the pet and the touch overlay draw after it). Tier 1 is the +/// focus lift, which does not exist yet. +const Groups = struct { + items: [pardes.MAX_PANES * 2 + 4]Group = @splat(.{}), + /// Groups 1 through `tracks` are the tracks'. + tracks: usize = 0, + notices: usize = 1, + guides: usize = 2, + ink: usize = 3, + len: usize = 4, }; -fn makePaintPlan(tracks: []const pardes.layout.Track, has_diff: bool) PaintPlan { - var plan: PaintPlan = .{}; - for ([_]pardes.layout.Phase{ .moving, .opening, .closing }) |phase| { - for (tracks) |track| { - if (!track.active() or track.phase != phase) continue; - if (track.effect.needsPreviousGrid() and !has_diff) continue; - std.debug.assert(plan.len < plan.batches.len); - plan.batches[plan.len].track = track; - plan.len += 1; - } +fn makeGroups(tracks: []const pardes.animation.Track, has_diff: bool) Groups { + var groups: Groups = .{}; + for (tracks) |track| { + if (!track.active()) continue; + if (track.effect.needsPreviousGrid() and !has_diff) continue; + std.debug.assert(groups.tracks < pardes.MAX_PANES * 2); + groups.tracks += 1; + groups.items[groups.tracks].track = track; } - return plan; + groups.notices = groups.tracks + 1; + groups.guides = groups.tracks + 2; + groups.ink = groups.tracks + 3; + groups.len = groups.tracks + 4; + return groups; } -fn paintBatchAt(plan: *const PaintPlan, col: u16, row: u16) usize { - for (plan.batches[1..plan.len], 1..) |batch, index| { - if (batch.track.?.phase == .closing) continue; - if (boxContains(batch.track.?.to, col, row)) return index; +/// The group of the track whose pane covers this cell, else tier 0. +fn groupAt(groups: *const Groups, col: u16, row: u16) usize { + for (groups.items[1..][0..groups.tracks], 1..) |group, index| { + if (group.track.?.phase == .closing) continue; + if (boxContains(group.track.?.to, col, row)) return index; } return 0; } -fn paintBatchForSerial(plan: *const PaintPlan, serial: u32) usize { - for (plan.batches[1..plan.len], 1..) |batch, index| - if (batch.track.?.serial == serial) return index; +fn groupOf(groups: *const Groups, serial: u32) usize { + for (groups.items[1..][0..groups.tracks], 1..) |group, index| + if (group.track.?.serial == serial) return index; return 0; } -fn panelCellCoord(track: pardes.layout.Track, col: u16, row: u16) u32 { +/// A notice floats over the panes and its pane's picture (tier 4) while +/// nothing moves; while anything does it stays in its own pane's group, under +/// whatever pane slides, opens or closes over it. +fn noticeGroup(groups: *const Groups, layer: *const pardes.Layer) usize { + if (groups.tracks > 0) return groupAt(groups, layer.viewport.x, layer.viewport.y); + return groups.notices; +} + +/// What draws a grid cell, marked once a frame from the layers and the +/// regions (coverFrame), so the cell loops read it rather than search. +const Cover = packed struct(u16) { + /// A layer draws it; the grid's copy is not drawn. + layer: bool = false, + /// Under a guide or the debug box: drawn from the grid over the panes. + floating: bool = false, + /// In a pane's grip, `grip_offset` cells from its left: the grip's + /// glyph is the cell that far to the left. + grip: bool = false, + grip_offset: u4 = 0, + /// In the focused pane's or column's tag rows. + focus: bool = false, + /// At a column's left edge, where a tag's anchor is inset. + anchor: bool = false, + _: u7 = 0, +}; + +/// Marks the grid cells a body or tag layer covers, which the layers paint +/// themselves, and what the regions say of the rest. Filling each rectangle +/// once replaces scanning every layer for every cell, which was a third of +/// the gui's CPU on a full screen of text. +fn coverFrame(cover: []Cover, cols: u16, rows: u16, body_layers: []const pardes.Layer, tag_layers: []const pardes.Layer, regions: []const pardes.Region) void { + @memset(cover, .{}); + const mark = struct { + fn rect(into: []Cover, width: u16, height: u16, r: pardes.Rect, comptime field: []const u8, value: anytype) void { + const right = @min(width, @as(u32, r.x) + r.w); + if (r.x >= right) return; + var y: u32 = r.y; + while (y < @min(height, @as(u32, r.y) + r.h)) : (y += 1) + for (into[y * width ..][r.x..right]) |*cell| { + @field(cell, field) = value; + }; + } + }; + for (body_layers) |*layer| { + if (layer.rows != 0) mark.rect(cover, cols, rows, layer.viewport, "layer", true); + } + for (tag_layers) |*layer| { + if (layer.rows != 0) mark.rect(cover, cols, rows, .{ .x = layer.viewport.x, .y = layer.viewport.y, .w = layer.viewport.w, .h = layer.rows }, "layer", true); + } + // The column bar's rows, which the focused column's tint spans. + var bar: ?pardes.Rect = null; + for (regions) |region| { + if (region.kind == .column_grip) bar = region.rect; + } + for (regions) |region| switch (region.kind) { + .grip => { + mark.rect(cover, cols, rows, region.rect, "grip", true); + for (0..@min(region.rect.w, 16)) |offset| mark.rect(cover, cols, rows, .{ .x = region.rect.x +| @as(u16, @intCast(offset)), .y = region.rect.y, .w = 1, .h = region.rect.h }, "grip_offset", @as(u4, @intCast(offset))); + if (region.active) mark.rect(cover, cols, rows, region.rect, "focus", true); + }, + .tag => if (region.active) mark.rect(cover, cols, rows, region.rect, "focus", true), + .column => { + mark.rect(cover, cols, rows, .{ .x = region.rect.x, .y = 0, .w = 1, .h = rows }, "anchor", true); + if (region.active) if (bar) |b| mark.rect(cover, cols, rows, .{ .x = region.rect.x, .y = b.y, .w = region.rect.w, .h = b.h }, "focus", true); + }, + .guide, .debug => mark.rect(cover, cols, rows, region.rect, "floating", true), + else => {}, + }; +} + +fn panelCellCoord(track: pardes.animation.Track, col: u16, row: u16) u32 { const source = track.contentBox(); const x0: u16 = @intFromFloat(@max(0.0, @floor(source.x))); const y0: u16 = @intFromFloat(@max(0.0, @floor(source.y))); return @as(u32, row -| y0) << 16 | @as(u32, col -| x0); } -fn panelGridSize(track: pardes.layout.Track) u32 { +fn panelGridSize(track: pardes.animation.Track) u32 { const source = track.contentBox(); const cols: u16 = @intFromFloat(@min(@as(f32, std.math.maxInt(u16)), @max(1.0, @ceil(source.w)))); const rows: u16 = @intFromFloat(@min(@as(f32, std.math.maxInt(u16)), @max(1.0, @ceil(source.h)))); return @as(u32, rows) << 16 | @as(u32, cols); } -fn ndcBox(box: pardes.layout.Box, layout: CellLayout, win_w: f32, win_h: f32) [4]f32 { +fn ndcBox(box: pardes.animation.Box, layout: CellLayout, win_w: f32, win_h: f32) [4]f32 { const px0 = layout.x_off + box.x * layout.w; const py0 = layout.y_off + box.y * layout.h; const px1 = px0 + box.w * layout.w; @@ -2112,7 +2181,7 @@ fn ndcBox(box: pardes.layout.Box, layout: CellLayout, win_w: f32, win_h: f32) [4 fn setTransitionFields( instance: anytype, - track: ?pardes.layout.Track, + track: ?pardes.animation.Track, layout: CellLayout, win_w: f32, win_h: f32, @@ -2147,6 +2216,15 @@ fn setTransitionFields( instance.progress_bits = @bitCast(active.amount()); instance.serial = active.serial; instance.cell_coord = cell_coord; + // A vertical transition shows its pane only inside the box it grows + // into, in whole pixels. + if (@hasField(@TypeOf(instance.*), "clip_x0") and active.effect == .vertical) { + const box = active.contentBox(); + instance.clip_x0 = std.math.clamp(@floor(box.x * layout.w), 0, win_w); + instance.clip_y0 = std.math.clamp(@floor(box.y * layout.h), 0, win_h); + instance.clip_x1 = std.math.clamp(@ceil((box.x + box.w) * layout.w), instance.clip_x0, win_w); + instance.clip_y1 = std.math.clamp(@ceil((box.y + box.h) * layout.h), instance.clip_y0, win_h); + } } pub const run = runNative; @@ -2322,10 +2400,10 @@ fn runNative(init: std.process.Init, opts_in: pardes.Options, attach: ?[]const u var ax_info = c.SDL_GPUTransferBufferCreateInfo{ .usage = c.SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD, .size = atlas_w * atlas_h, .props = 0 }; const atlas_xfer = c.SDL_CreateGPUTransferBuffer(device, &ax_info) orelse return error.GpuCreate; - const pipeline = try makePipeline(device, swapchain_format); + const pipeline = try makePipeline(device, swapchain_format, frag_spv, 1, std.mem.zeroes(c.SDL_GPUColorTargetBlendState)); + const decor_pipeline = try makePipeline(device, swapchain_format, decor_frag_spv, 0, backgroundLayerBlend()); const overlay_pipeline = try makeOverlayPipeline(device, swapchain_format); const image_pipeline = try makeImagePipeline(device, swapchain_format); - const crt_pipeline = try makeCrtPipeline(device, swapchain_format); const overlay_buffer_size: u32 = @intCast(max_overlay_vertices * @sizeOf(OverlayVertex)); var ovb_info = c.SDL_GPUBufferCreateInfo{ .usage = c.SDL_GPU_BUFFERUSAGE_VERTEX, .size = overlay_buffer_size, .props = 0 }; @@ -2352,9 +2430,9 @@ fn runNative(init: std.process.Init, opts_in: pardes.Options, attach: ?[]const u .device = device, .swapchain_format = swapchain_format, .pipeline = pipeline, + .decor_pipeline = decor_pipeline, .overlay_pipeline = overlay_pipeline, .image_pipeline = image_pipeline, - .crt_pipeline = crt_pipeline, .atlas_tex = atlas_tex, .atlas_sampler = atlas_sampler, .linear_sampler = linear_sampler, @@ -2389,8 +2467,8 @@ fn runNative(init: std.process.Init, opts_in: pardes.Options, attach: ?[]const u // regrown to; the image ones are released below. defer { c.SDL_ReleaseGPUGraphicsPipeline(device, g.pipeline); + c.SDL_ReleaseGPUGraphicsPipeline(device, g.decor_pipeline); c.SDL_ReleaseGPUGraphicsPipeline(device, g.overlay_pipeline); - c.SDL_ReleaseGPUGraphicsPipeline(device, g.crt_pipeline); c.SDL_ReleaseGPUTexture(device, g.atlas_tex); c.SDL_ReleaseGPUSampler(device, g.atlas_sampler); c.SDL_ReleaseGPUSampler(device, g.linear_sampler); @@ -2414,7 +2492,9 @@ fn runNative(init: std.process.Init, opts_in: pardes.Options, attach: ?[]const u g.native_images.deinit(gpa); g.presented_images.deinit(gpa); g.prepared_images.deinit(gpa); - g.layer_cover.deinit(gpa); + g.cover.deinit(gpa); + g.decor.deinit(gpa); + g.post.deinit(gpa, device); } defer c.SDL_ReleaseGPUTransferBuffer(device, g.image_vxfer); defer c.SDL_ReleaseGPUBuffer(device, g.image_vbuf); @@ -2525,6 +2605,7 @@ fn localSession( .watches = &watches, .fs = fs, .test_mode = test_mode, + .test_clock = if (test_mode) host_io.testClock() else null, }; defer shell.shutdownPtys(); const host = shell.host(); @@ -2716,25 +2797,12 @@ fn attachedLoop(gpa: std.mem.Allocator, g: *Gui, client: *detached_client.Client } fn paintAttached(g: *Gui, gpa: std.mem.Allocator, client: *detached_client.Client) void { - var surface: pardes.Surface = .{ - .cols = client.cols, - .rows = client.rows, - .cells = client.grid.items, - .cursor = if (client.cursor) |cu| .{ .x = cu.x, .y = cu.y, .bar = cu.bar } else null, - .pointer_shape = client.pointer_shape, - .body_layers = client.body_layers, - .tag_layers = client.tag_layers, - }; - const chrome = frameChromeBg(&surface); + var surface = attachedSurface(client); _ = renderFrame( g, gpa, null, &surface, - null, - chrome, - chrome, - .{}, false, ) catch |err| blk: { log.err("render: {t}", .{err}); @@ -2742,17 +2810,67 @@ fn paintAttached(g: *Gui, gpa: std.mem.Allocator, client: *detached_client.Clien }; } -fn frameChromeBg(surface: *const pardes.Surface) [3]u8 { - if (surface.rows == 0 or surface.cols == 0) return bg_default; - for (surface.cells[0..surface.cols]) |cell| { - if (cell.default or cell.style.font_role != .tagline) continue; - return switch (cell.style.bg) { - .default => bg_default, - .index => |i| palColor(i), - .rgb => |rgb| rgb, - }; - } - return bg_default; +/// The session's frame as a surface: its cells, layers, regions and palette, +/// so its chrome is drawn from them as a local one's is. +fn attachedSurface(client: *const detached_client.Client) pardes.Surface { + var surface: pardes.Surface = .{ + .cols = client.cols, + .rows = client.rows, + .cells = client.grid.items, + .cursor = if (client.cursor) |cu| .{ .x = cu.x, .y = cu.y, .bar = cu.bar } else null, + .pointer_shape = client.pointer_shape, + .body_layers = client.body_layers, + .tag_layers = client.tag_layers, + .chrome = client.chrome, + }; + const placed = client.regions.items[0..@min(client.regions.items.len, surface.regions.len)]; + @memcpy(surface.regions[0..placed.len], placed); + surface.nregions = @intCast(placed.len); + return surface; +} + +test "an attached frontend draws the session's chrome from its frame alone" { + const gpa = std.testing.allocator; + const core = try pardes.Pardes.init(gpa, .{ .cols = 80, .rows = 24 }); + defer core.deinit(); + // A gui-shaped core, whose tags and notices are layers. + core.update(.{ .resize = .{ .cols = 80, .rows = 24, .row_metrics = .{ .body_w = 10, .body_h = 20, .tagline_w = 6, .tagline_h = 12 } } }); + _ = try core.newShell(1, ""); + try std.testing.expect(pardes.layout.splitColumn(core, 0, 1, false)); + core.settings.focus_tint = true; + try std.testing.expect(core.executeBuiltinLine(0, "Msg a notice with a rule under it")); + pardes.test_api.sync(core); + // Past its slide into place, where its rule shows. + for (0..30) |_| core.update(.tick); + const s = try core.render(core.scratch.allocator()); + + const wire = @import("../detached/wire.zig"); + var client: detached_client.Client = .{ .gpa = gpa }; + defer client.deinit(); + var welcome: [64]u8 = undefined; + try client.in.appendSlice(gpa, try wire.encodeServer(&welcome, .{ .welcome = .{ .slot = 0, .cols = s.cols, .rows = s.rows } })); + const out = try gpa.alloc(u8, wire.frameBound(s.cols, s.rows) + wire.layersBound(&s.body_layers, &s.tag_layers, s.regionList())); + defer gpa.free(out); + try client.in.appendSlice(gpa, try wire.encodeFrameLayers(out, s.cols, s.rows, null, s.pointer_shape, s.cells, &.{}, &s.body_layers, &s.tag_layers, s.regionList(), s.chrome)); + _ = try client.next(); + _ = try client.next(); + const attached = attachedSurface(&client); + + var g: Gui = undefined; + g.cell_w = 10; + g.cell_h = 20; + g.tagline_width = 6; + g.tagline_height = 12; + g.decor = .empty; + defer g.decor.deinit(gpa); + var groups = makeGroups(&.{}, false); + try buildDecor(&g, gpa, s, &groups, fixedCellLayout(&g), 800, 480, true); + const local = try gpa.dupe(CellInstance, g.decor.items); + defer gpa.free(local); + try std.testing.expect(local.len > 8); + try std.testing.expect(groups.items[groups.notices].decor_count != 0); + try buildDecor(&g, gpa, &attached, &groups, fixedCellLayout(&g), 800, 480, true); + try std.testing.expectEqualSlices(u8, std.mem.sliceAsBytes(local), std.mem.sliceAsBytes(g.decor.items)); } fn runGrid(init: std.process.Init, opts_in: pardes.Options) !void { @@ -2955,23 +3073,14 @@ const StdinFeed = struct { f.fill = len - seq_start; break; }; - if (parseFinger(body[0..end])) |finger_in| { - var finger = finger_in; + if (parseFinger(body[0..end])) |finger| { if (g) |gp| { var wpw: c_int = 0; var wph: c_int = 0; _ = c.SDL_GetWindowSizeInPixels(gp.window, &wpw, &wph); const win_w: f32 = @floatFromInt(@max(wpw, 1)); const win_h: f32 = @floatFromInt(@max(wph, 1)); - if (mapScenePoint(gp, finger.x * win_w, finger.y * win_h, win_w, win_h)) |m| { - finger.x = m.x / win_w; - finger.y = m.y / win_h; - handleFinger(&gp.touch, in, finger, win_w, win_h, @floatFromInt(gp.cell_w), @floatFromInt(gp.cell_h), @floatFromInt(gp.tagline_width)); - } else { - finger.kind = .cancel; - handleFinger(&gp.touch, in, finger, win_w, win_h, @floatFromInt(gp.cell_w), @floatFromInt(gp.cell_h), @floatFromInt(gp.tagline_width)); - in.post(.pointer_leave); - } + handleFinger(&gp.touch, in, finger, win_w, win_h, @floatFromInt(gp.cell_w), @floatFromInt(gp.cell_h), @floatFromInt(gp.tagline_width)); } else if (in.core) |core| { handleFinger(&grid_touch, in, finger, @floatFromInt(core.screen_w), @floatFromInt(core.screen_h), 1, 1, 1); } @@ -3178,6 +3287,20 @@ const Input = struct { }; fn dispatch(g: *Gui, in: *Input, sev: *const c.SDL_Event) void { + // What the post chain sees of the pointer and the focus. + switch (sev.type) { + c.SDL_EVENT_MOUSE_MOTION => { + const at = windowPointToPixels(windowGeometry(g.window), sev.motion.x, sev.motion.y); + g.post.mouse(at.x, at.y, null); + }, + c.SDL_EVENT_MOUSE_BUTTON_DOWN, c.SDL_EVENT_MOUSE_BUTTON_UP => { + const at = windowPointToPixels(windowGeometry(g.window), sev.button.x, sev.button.y); + g.post.mouse(at.x, at.y, sev.button.down); + }, + c.SDL_EVENT_WINDOW_FOCUS_GAINED => g.post.focus(true), + c.SDL_EVENT_WINDOW_FOCUS_LOST => g.post.focus(false), + else => {}, + } switch (sev.type) { c.SDL_EVENT_QUIT, c.SDL_EVENT_WINDOW_CLOSE_REQUESTED => in.close(), c.SDL_EVENT_WINDOW_MOUSE_LEAVE => { @@ -3350,7 +3473,7 @@ fn dispatch(g: *Gui, in: *Input, sev: *const c.SDL_Event) void { }, c.SDL_EVENT_FINGER_DOWN, c.SDL_EVENT_FINGER_MOTION, c.SDL_EVENT_FINGER_UP, c.SDL_EVENT_FINGER_CANCELED => { const f = sev.tfinger; - var finger: Finger = .{ + const finger: Finger = .{ .kind = switch (sev.type) { c.SDL_EVENT_FINGER_DOWN => .down, c.SDL_EVENT_FINGER_MOTION => .motion, @@ -3369,15 +3492,7 @@ fn dispatch(g: *Gui, in: *Input, sev: *const c.SDL_Event) void { const win_h: f32 = @floatFromInt(@max(ph, 1)); const fcw: f32 = @floatFromInt(g.cell_w); const fch: f32 = @floatFromInt(g.cell_h); - if (mapScenePoint(g, finger.x * win_w, finger.y * win_h, win_w, win_h)) |m| { - finger.x = m.x / win_w; - finger.y = m.y / win_h; - handleFinger(&g.touch, in, finger, win_w, win_h, fcw, fch, @floatFromInt(g.tagline_width)); - } else { - finger.kind = .cancel; - handleFinger(&g.touch, in, finger, win_w, win_h, fcw, fch, @floatFromInt(g.tagline_width)); - in.post(.pointer_leave); - } + handleFinger(&g.touch, in, finger, win_w, win_h, fcw, fch, @floatFromInt(g.tagline_width)); }, c.SDL_EVENT_PINCH_BEGIN, c.SDL_EVENT_PINCH_UPDATE => in.post(.{ .pinch = sev.pinch.scale }), c.SDL_EVENT_GAMEPAD_ADDED => { @@ -3567,7 +3682,7 @@ fn gridCellAtDimensions( var point: MouseCell = .{ .col = @intFromFloat(@min(@floor(@max(x, 0) / @max(body_w, 1)), 10_000)), .row = row }; if (core) |p| if (p.presentation.pointerFractional(p.screen_w, p.screen_h, x / @max(body_w, 1), y / @max(body_h, 1))) |mapped| { for (p.surface.tagLayers()) |*layer| { - if (layer.hitAt(mapped.x * body_w, mapped.y * body_h, body_w, body_h, tagline_w, @floatFromInt(p.row_metrics.tagline_h))) |hit| { + if (layer.tagHit(mapped.x * body_w, mapped.y * body_h, body_w, body_h, tagline_w, @floatFromInt(p.row_metrics.tagline_h))) |hit| { point.tag_hit = hit; break; } @@ -3579,19 +3694,19 @@ fn gridCellAtDimensions( fn gridCellAtPixels(g: *const Gui, core: ?*const pardes.Pardes, x: f32, y: f32) MouseCell { var point = gridCellAtDimensions(core, x, y, @floatFromInt(g.cell_w), @floatFromInt(g.cell_h), @floatFromInt(g.tagline_width)); if (core) |p| if (p.presentation.pointerFractional(p.screen_w, p.screen_h, x / @as(f32, @floatFromInt(g.cell_w)), y / @as(f32, @floatFromInt(g.cell_h)))) |mapped| for (p.surface.bodyLayers()) |*layer| { - if (layer.hitAt(mapped.x * @as(f32, @floatFromInt(g.cell_w)), mapped.y * @as(f32, @floatFromInt(g.cell_h)), @floatFromInt(g.cell_w), @floatFromInt(g.cell_h), @floatFromInt(g.tagline_width), @floatFromInt(g.tagline_height))) |hit| { + if (layer.bodyHit(mapped.x * @as(f32, @floatFromInt(g.cell_w)), mapped.y * @as(f32, @floatFromInt(g.cell_h)), @floatFromInt(g.cell_w), @floatFromInt(g.cell_h), @floatFromInt(g.tagline_width), @floatFromInt(g.tagline_height))) |hit| { point.body_hit = hit; break; } }; if (core == null) if (g.attached_layers) |layers| for (layers) |*layer| { - if (layer.hitAt(x, y, @floatFromInt(g.cell_w), @floatFromInt(g.cell_h), @floatFromInt(g.tagline_width), @floatFromInt(g.tagline_height))) |body_hit| { + if (layer.bodyHit(x, y, @floatFromInt(g.cell_w), @floatFromInt(g.cell_h), @floatFromInt(g.tagline_width), @floatFromInt(g.tagline_height))) |body_hit| { point.body_hit = body_hit; break; } }; if (core == null) if (g.attached_tag_layers) |layers| for (layers) |*layer| { - if (layer.hitAt(x, y, @floatFromInt(g.cell_w), @floatFromInt(g.cell_h), @floatFromInt(g.tagline_width), @floatFromInt(g.tagline_height))) |hit| { + if (layer.tagHit(x, y, @floatFromInt(g.cell_w), @floatFromInt(g.cell_h), @floatFromInt(g.tagline_width), @floatFromInt(g.tagline_height))) |hit| { point.tag_hit = hit; break; } @@ -3637,14 +3752,30 @@ test "tagline pointer mapping retains physical grips and carries logical text co try std.testing.expectEqual(pardes.TagKind.workspace, topbar.tag_hit.?.kind); } -fn mapScenePoint(g: *const Gui, x: f32, y: f32, w: f32, h: f32) ?crt.Point { - return crt.mapScene(x, y, w, h, g.presented_scene.effects, g.presented_scene.time_seconds); +test "a click at the window's corner lands in the corner cell with a post chain on" { + const core = try pardes.Pardes.init(std.testing.allocator, .{ .cols = 80, .rows = 24 }); + defer core.deinit(); + try std.testing.expect(core.settings.post.set(.crt, "", true)); + var g: Gui = undefined; + g.cell_w = 10; + g.cell_h = 20; + g.tagline_width = 6; + g.tagline_height = 12; + const geometry: WindowGeometry = .{ .window_w = 400, .window_h = 240, .pixel_w = 800, .pixel_h = 480 }; + const last = mouseCellWithGeometry(&g, core, 399.9, 239.9, geometry).?; + try std.testing.expectEqual(@as(u16, 79), last.col); + try std.testing.expectEqual(@as(u16, 23), last.row); + const first = mouseCellWithGeometry(&g, core, 0, 0, geometry).?; + try std.testing.expectEqual(@as(u16, 0), first.col); + try std.testing.expectEqual(@as(u16, 0), first.row); } +/// Where a window point lands: the cell drawn under it. Input is identity: +/// no post pass moves a pixel (the bundled Crt has no barrel), so a click +/// is exactly where it looks. fn mouseCellWithGeometry(g: *const Gui, core: ?*const pardes.Pardes, x: f32, y: f32, geometry: WindowGeometry) ?MouseCell { const physical = windowPointToPixels(geometry, x, y); - const mapped = mapScenePoint(g, physical.x, physical.y, geometry.pixel_w, geometry.pixel_h) orelse return null; - return gridCellAtPixels(g, core, mapped.x, mapped.y); + return gridCellAtPixels(g, core, physical.x, physical.y); } fn mouseCell(g: *const Gui, core: ?*const pardes.Pardes, x: f32, y: f32) ?MouseCell { @@ -3755,10 +3886,11 @@ const Shell = struct { presented: bool = false, skipped_presents: u8 = 0, surface: ?*pardes.Surface = null, - animation_clock: AnimationClock = .{}, saw_event: bool = false, dump_err: ?anyerror = null, retired_shells: [pardes.MAX_PANES]RetiredShell = @splat(.{}), + /// PARDES_TEST_CLOCK's virtual time (host_io.testClock), in test mode. + test_clock: ?u64 = null, fn reap(s: *Shell) void { const now = shellClock(); @@ -3845,6 +3977,7 @@ const Shell = struct { const vtable: pardes.Host.VTable = .{ .wait_input = waitInput, + .now = guiNow, .present = present, .post_present = postPresent, .poll_frame = pollFrame, @@ -3870,6 +4003,7 @@ const Shell = struct { const grid_vtable: pardes.Host.VTable = vt: { var v = vtable; v.wait_input = null; + v.now = null; v.poll_frame = gridPollFrame; v.present = gridPresent; v.post_present = gridPostPresent; @@ -3878,29 +4012,20 @@ const Shell = struct { break :vt v; }; - /// Each watched child that exited: reaped, the core told, and its pty - /// closed if its end of file came first. + /// The command panes' exits, told once their output is in (host_io). fn takeExits(s: *Shell) void { - while (host_io.takeExited()) |pid| for (s.ptys) |*slot| { - const pt = if (slot.*) |*pt| pt else continue; - if (pt.pid != pid or pt.cmd.exited) continue; - pt.cmd.exit((host_io.reapExited(pid) orelse break).status); - pt.pid = 0; // reaped: no signal or retire may reach whoever gets it next - break; - }; - for (s.ptys, 0..) |*slot, id| { - const pt = if (slot.*) |*pt| pt else continue; - if (!pt.cmd.due()) continue; - pt.cmd.told = true; - s.core.update(.{ .exited = .{ .pane = @intCast(id), .status = pt.cmd.status } }); - if (pt.cmd.eof) s.closePty(@intCast(id)); - s.saw_event = true; - } + host_io.takeExits(s.core, s.ptys, s, closeWatched); + } + + fn closeWatched(s: *Shell, id: usize) void { + s.closePty(@intCast(id)); + s.saw_event = true; } fn drainQueue(s: *Shell) void { s.reconcilePtys(); - s.takeExits(); + // After this batch's output, which an exit is told behind. + defer s.takeExits(); var msgs = s.queue.take(); var check_files = false; for (msgs.slice()) |m| switch (m) { @@ -3928,9 +4053,7 @@ const Shell = struct { // closing it would hang up one that runs on without it. // Its exit, if it came first, is told now its output is in. if (pt.cmd.watched) { - pt.cmd.eof = true; - s.core.update(.{ .eof = .{ .pane = e.pane } }); - s.takeExits(); + host_io.commandEof(s.core, s.ptys, e.pane, s, closeWatched); break :eof; } // Unwatched, a command's exit is read here, as its end. @@ -3992,13 +4115,38 @@ fn waitInput(ctx: ?*anyopaque, timeout_ms: u32) void { var in: Input = .{ .core = core }; if (s.gui) |g| { var sev = std.mem.zeroes(c.SDL_Event); + // Idle is asleep until an event: SDL's own, and the user events the + // shell's queue raises for a terminal's output, a completion, a file + // system request. What the shell moves or times itself polls every + // frame: a smooth scroll, a gamepad's sticks, the test stdin feed, + // a post chain that moves on its own (ShaderAnimation), + // a retired shell waiting to be killed, a present to retry. A + // minimized window sleeps through the core's animation too: nothing + // shows it, and it is caught up at once when the window is back. + const retiring = for (s.retired_shells) |child| { + if (child.kill_at != 0) break true; + } else for (s.ptys) |slot| { + if (slot) |pt| if (pt.kill_at != 0) break true; + } else false; + const polls = g.scroll_lag != 0 or g.scroll_delta != 0 or g.gamepad != null or s.test_mode or core.needs_frame or retiring or + g.post.animating(core.settings.shader_animation); + const minimized = !s.test_mode and c.SDL_GetWindowFlags(g.window) & (c.SDL_WINDOW_MINIMIZED | c.SDL_WINDOW_OCCLUDED) != 0; // A latency trace is fed on stdin, whose poll below paces the loop: // waiting here too would make every tick cost two frames. - const ms: c_int = if (latency_fd >= 0) 0 else if (timeout_ms != 0) @intCast(timeout_ms) else 16; + // A chain that moves on its own wakes once a display refresh. + const poll_ms: c_int = if (g.post.animating(core.settings.shader_animation)) + @intCast(@max(1, refreshNs(g) / std.time.ns_per_ms)) + else + 16; + const ms: c_int = if (latency_fd >= 0) 0 else if (minimized) -1 else if (timeout_ms != 0) @min(@as(c_int, @intCast(@min(timeout_ms, std.math.maxInt(c_int)))), if (polls) poll_ms else std.math.maxInt(c_int)) else if (polls) poll_ms else -1; // The wait is the 9P connections' turn with the core. pardes.turn.rest(); const got = c.SDL_WaitEventTimeout(&sev, ms); pardes.turn.wake(); + // The core's wake ran out: a virtual clock moves exactly there. + if (!got and timeout_ms != 0) if (s.test_clock) |*virtual| { + virtual.* = @max(virtual.*, core.nextWake() orelse virtual.*); + }; if (got) { // A run of queued motions is one move to its last position (the // handler reads only absolute x/y and held buttons): acting on @@ -4071,6 +4219,20 @@ fn pollFrame(ctx: ?*anyopaque) void { const geom = windowCells(g); if (updateCoreResize(core, geom.cols, geom.rows, g.cell_w, g.cell_h, g.tagline_width, g.tagline_height)) resetScroll(g); stepScroll(g, core, s.gpa); + g.post.sync(s.gpa, s.io, g.device, g.swapchain_format, core); + // Between the core's frames, a chain that moves on its own redraws + // alone, once a refresh of the display the window is on (a millisecond + // early is on time: the wait that paces it is in whole milliseconds). + if (g.post.animating(core.settings.shader_animation) and !core.needs_frame and s.presented and + c.SDL_GetTicksNS() -| g.post.last_ns + std.time.ns_per_ms >= refreshNs(g)) redrawPost(g, s.gpa); +} + +/// One refresh of the display the window is on, in ns; a frame of the +/// core's where the display does not say. +fn refreshNs(g: *const Gui) u64 { + const mode = c.SDL_GetCurrentDisplayMode(c.SDL_GetDisplayForWindow(g.window)) orelse return pardes.animation.frame_ns; + if (!(mode.*.refresh_rate > 1)) return pardes.animation.frame_ns; + return @intFromFloat(@as(f64, std.time.ns_per_s) / mode.*.refresh_rate); } fn finishWindowOpacity(core: *pardes.Pardes, applied: *u8, failure: ?[]const u8) void { @@ -4130,18 +4292,13 @@ fn present(ctx: ?*anyopaque, surface: *const pardes.Surface) void { frame_started_ns = monoNs(); const frame = @constCast(surface); s.surface = frame; - const scene_requested = core.settings.scene_effects.crt or - core.settings.scene_effects.ripple or core.settings.scene_effects.glitch; + const scene_requested = g.post.ready(); if (!scene_requested) g.scene_failures = 0; s.presented = renderFrame( g, s.gpa, core, frame, - core.theme().bg, - config.gui_topbar_pane_border_rgb orelse core.chromeTheme().border, - core.chromeTheme().tag_bg, - core.settings.scene_effects, core.settings.debug, ) catch |err| blk: { log.err("render: {t}", .{err}); @@ -4164,20 +4321,16 @@ fn present(ctx: ?*anyopaque, surface: *const pardes.Surface) void { fn postPresent(ctx: ?*anyopaque) void { const s = shellOf(ctx); const g = s.gui orelse return; - if (!s.presented) { - // No image (a minimized window): time still passes, so a lingering - // message or a hover wait runs out instead of redrawing forever. - if (s.animation_clock.due(s.core.animationActive(), c.SDL_GetTicksNS())) s.core.update(.tick); - return; - } + // No image (a minimized window) shows no tracks; time still passes and + // the pump advances it all the same. + if (!s.presented) return; const frame = s.surface orelse return; refreshPresentedPointer(g, s.core); - finishPresentedAnimationFrame( - &s.animation_clock, - s.core, - frame.panelTracks(), - c.SDL_GetTicksNS(), - ); + s.core.acknowledgePanelPresentation(frame.panelTracks()); +} + +fn guiNow(ctx: ?*anyopaque) u64 { + return shellOf(ctx).test_clock orelse c.SDL_GetTicksNS(); } fn gridPollFrame(ctx: ?*anyopaque) void { @@ -4187,8 +4340,10 @@ fn gridPollFrame(ctx: ?*anyopaque) void { if (f.tick().count != 0) s.saw_event = true; } pollCwds(s.core, s.ptys); - if (s.core.animationActive()) { - s.core.update(.tick); + // Grid time is virtual: each poll moves it straight to the core's + // next wake, a frame at a time while anything moves. + if (s.core.nextWake()) |due| { + s.core.advance(due); s.saw_event = true; } } @@ -4218,7 +4373,7 @@ fn spawnPane(ctx: ?*anyopaque, pane: u8, cwd: []const u8) void { s.gens[pane] +%= 1; const child = host_io.forkShell(s.core, pane, s.prompt_rcs, s.core.shellBin(), cwd, s.core.screen_h, s.core.screen_w, s.fs) catch |err| return s.core.reportError(pane, "shell", err); const command = s.core.panes[pane].?.command != null; - const pt: Pty = .{ .fd = child.file.handle, .pid = child.pid, .serial = s.core.panes[pane].?.serial, .cmd = .{ .watched = command and host_io.watchExit(child.pid) } }; + const pt: Pty = .{ .fd = child.file.handle, .pid = child.pid, .serial = s.core.panes[pane].?.serial, .cmd = .{ .watched = command and host_io.watchExit(child.pid), .fd = child.file.handle } }; s.ptys[pane] = pt; var lbuf: [pardes.memory.limits.host_path_cap + 1]u8 = undefined; if (host_io.shellCwd(pt.pid, &lbuf)) |wd| s.core.setCwd(pane, wd); @@ -4696,7 +4851,7 @@ fn snapshotContainsPlacement(g: *const Gui, current: pardes.ImagePlace) bool { return false; } -fn placeIntersectsBox(place: SavedImagePlace, box: pardes.layout.Box) bool { +fn placeIntersectsBox(place: SavedImagePlace, box: pardes.animation.Box) bool { const x0: f32 = @floatFromInt(place.x); const y0: f32 = @floatFromInt(place.y); const x1: f32 = @floatFromInt(@as(u32, place.x) + place.w); @@ -4868,8 +5023,8 @@ fn appendPreparedImage( g: *Gui, gpa: std.mem.Allocator, place: SavedImagePlace, - track: ?pardes.layout.Track, - clip: ?pardes.layout.Box, + track: ?pardes.animation.Track, + clip: ?pardes.animation.Box, old_layer: bool, ) void { const texture = g.native_images.get(place.key) orelse return; @@ -4944,7 +5099,7 @@ fn prepareNativeImages( gpa: std.mem.Allocator, cmd: *c.SDL_GPUCommandBuffer, surface: *pardes.Surface, - plan: *PaintPlan, + groups: *Groups, sw: u32, sh: u32, ) bool { @@ -4970,9 +5125,9 @@ fn prepareNativeImages( } g.prepared_images.clearRetainingCapacity(); - for (plan.batches[0..plan.len], 0..) |*batch, batch_index| { - batch.image_start = std.math.cast(u32, g.prepared_images.items.len) orelse return false; - const track = batch.track; + for (groups.items[0..groups.len], 0..) |*group, group_index| { + group.image_start = std.math.cast(u32, g.prepared_images.items.len) orelse return false; + const track = group.track; if (track) |active| { if (active.phase == .closing) { @@ -4992,7 +5147,7 @@ fn prepareNativeImages( for (surface.images[0..surface.nimages]) |maybe| { const current = maybe orelse continue; if (validImageBytes(current) == null or - paintBatchForSerial(plan, current.serial) != batch_index) continue; + groupOf(groups, current.serial) != group_index) continue; const saved = SavedImagePlace.from(current); const current_track = if (track) |active| switch (active.effect) { .dissolve => if (snapshotContainsPlacement(g, current)) null else active, @@ -5001,7 +5156,7 @@ fn prepareNativeImages( appendPreparedImage(g, gpa, saved, current_track, null, false); } } - if (batch_index == 0) for (plan.batches[1..plan.len]) |tracked| { + if (group_index == 0) for (groups.items[1..][0..groups.tracks]) |tracked| { const active = tracked.track.?; if (active.effect != .vertical or active.phase != .opening) continue; for (g.presented_images.items) |saved| { @@ -5010,7 +5165,7 @@ fn prepareNativeImages( } }; const image_end = std.math.cast(u32, g.prepared_images.items.len) orelse return false; - batch.image_count = image_end - batch.image_start; + group.image_count = image_end - group.image_start; } const capacity = std.math.cast(u32, g.prepared_images.items.len) orelse return false; @@ -5058,7 +5213,7 @@ fn imageScissor( }; } -fn panelBoxScissor(g: *const Gui, box: pardes.layout.Box, max_w: u32, max_h: u32) c.SDL_Rect { +fn panelBoxScissor(g: *const Gui, box: pardes.animation.Box, max_w: u32, max_h: u32) c.SDL_Rect { const x0: i32 = @intFromFloat(@floor(box.x * @as(f32, @floatFromInt(g.cell_w)))); const y0: i32 = @intFromFloat(@floor(box.y * @as(f32, @floatFromInt(g.cell_h)))); const x1: i32 = @intFromFloat(@ceil((box.x + box.w) * @as(f32, @floatFromInt(g.cell_w)))); @@ -5079,11 +5234,10 @@ fn drawNativeImagesGpu( g: *Gui, rp: ?*c.SDL_GPURenderPass, surface: *pardes.Surface, - plan: *const PaintPlan, - batch_index: usize, + batch: Group, + whole: c.SDL_Rect, ) void { const pass = rp orelse return; - const batch = plan.batches[batch_index]; c.SDL_BindGPUGraphicsPipeline(pass, g.image_pipeline); const max_w = @as(u32, surface.cols) * g.cell_w; const max_h = @as(u32, surface.rows) * g.cell_h; @@ -5102,12 +5256,8 @@ fn drawNativeImagesGpu( idx += 1; } std.debug.assert(idx == batch.image_start + batch.image_count); - const whole = c.SDL_Rect{ - .x = 0, - .y = 0, - .w = @intCast(@as(u32, surface.cols) * g.cell_w), - .h = @intCast(@as(u32, surface.rows) * g.cell_h), - }; + // Back to the whole target: what draws after a picture may run on past + // the grid, as a rule and a band do. c.SDL_SetGPUScissor(pass, &whole); } @@ -5116,10 +5266,6 @@ fn renderFrame( gpa: std.mem.Allocator, core: ?*const pardes.Pardes, surface: *pardes.Surface, - theme_bg: ?[3]u8, - topbar_pane_border_rgb: [3]u8, - tagline_rgb: [3]u8, - scene_effects: pardes.layout.SceneEffect, debug_on: bool, ) !bool { if (surface.pointer_shape != g.pointer_shape) { @@ -5134,93 +5280,58 @@ fn renderFrame( defer if (!command_consumed) { _ = c.SDL_SubmitGPUCommandBuffer(cmd); }; - var sw: u32 = 0; - var sh: u32 = 0; - var target: *c.SDL_GPUTexture = undefined; - if (g.capture) { - sw = @as(u32, surface.cols) * g.cell_w + g.capture_pad; - sh = @as(u32, surface.rows) * g.cell_h + g.capture_pad; - if (sw == 0 or sh == 0) { - command_consumed = true; - _ = c.SDL_SubmitGPUCommandBuffer(cmd); - return false; - } - try ensureCaptureTexture(g, sw, sh); - target = g.capture_tex.?; - } else if (g.soft_present) { - var pw: c_int = 0; - var ph: c_int = 0; - if (!c.SDL_GetWindowSizeInPixels(g.window, &pw, &ph) or pw <= 0 or ph <= 0) { - command_consumed = true; - _ = c.SDL_SubmitGPUCommandBuffer(cmd); - return false; - } - sw = @intCast(pw); - sh = @intCast(ph); - try ensureCaptureTexture(g, sw, sh); - target = g.capture_tex.?; - } else { - var swap_tex: ?*c.SDL_GPUTexture = null; - if (!c.SDL_AcquireGPUSwapchainTexture(cmd, g.window, &swap_tex, &sw, &sh)) { - command_consumed = true; - _ = c.SDL_SubmitGPUCommandBuffer(cmd); - return false; - } - target = swap_tex orelse { // swapchain busy: skip the frame - command_consumed = true; - _ = c.SDL_SubmitGPUCommandBuffer(cmd); - return false; - }; - } + const frame_target = try acquireTarget(g, cmd, @as(u32, surface.cols) * g.cell_w + g.capture_pad, @as(u32, surface.rows) * g.cell_h + g.capture_pad) orelse { + command_consumed = true; + _ = c.SDL_SubmitGPUCommandBuffer(cmd); + return false; + }; + const target = frame_target.texture; + const sw = frame_target.w; + const sh = frame_target.h; const win_w: f32 = @floatFromInt(sw); const win_h: f32 = @floatFromInt(sh); - var scene_on = scene_effects.crt or scene_effects.ripple or scene_effects.glitch; + // The post chain runs over a local frame, from the scene texture. + var scene_on = core != null and g.post.ready(); if (scene_on) ensureSceneTexture(g, sw, sh) catch { g.scene_target_failed = true; scene_on = false; }; const scene: *c.SDL_GPUTexture = if (scene_on) g.scene_tex.? else target; + // The frame's CPU side: groups, decor, cover and every instance, up to + // their upload. + const build_zone = tracy.zone(@src(), "gui frame build"); + var building = true; + defer if (building) build_zone.end(); const layout = fixedCellLayout(g); - var paint_plan = makePaintPlan(surface.panelTracks(), surface.hasPanelDiff()); - var overlay_count = buildOverlay( - g, - core, - surface, - layout, - sw, - sh, - topbar_pane_border_rgb, - tagline_rgb, - paint_plan.len == 1, - debug_on, - ); + const chrome = &surface.chrome; + var groups = makeGroups(surface.panelTracks(), surface.hasPanelDiff()); + // Cursors stand still while panes move, as they always have. + const cursors_shown = groups.tracks == 0; + var overlay_count = buildOverlay(g, core, surface, sw, sh, debug_on); if (overlay_count != 0 and !uploadOverlayGpu(g, cmd, overlay_count)) overlay_count = 0; - if (!prepareNativeImages(g, gpa, cmd, surface, &paint_plan, sw, sh)) { + if (!prepareNativeImages(g, gpa, cmd, surface, &groups, sw, sh)) { g.prepared_images.clearRetainingCapacity(); - for (paint_plan.batches[0..paint_plan.len]) |*batch| { - batch.image_start = 0; - batch.image_count = 0; + for (groups.items[0..groups.len]) |*group| { + group.image_start = 0; + group.image_count = 0; } } const cells: u32 = @as(u32, surface.cols) * surface.rows; - try g.layer_cover.resize(gpa, @as(usize, cells) * 2); - const covered = g.layer_cover.items[0..cells]; - coverLayers(covered, surface.cols, surface.rows, surface.bodyLayers(), surface.tagLayers()); + try g.cover.resize(gpa, @as(usize, cells) * 2); + const covered = g.cover.items[0..cells]; + coverFrame(covered, surface.cols, surface.rows, surface.bodyLayers(), surface.tagLayers(), surface.regionList()); // Only a panel transition paints the grid under the layers it leaves. - const previous_covered = g.layer_cover.items[cells..]; - if (paint_plan.len > 1) - coverLayers(previous_covered, surface.cols, surface.rows, surface.previous_body_layers, surface.previous_tag_layers); + const previous_covered = g.cover.items[cells..]; + if (groups.tracks != 0) + coverFrame(previous_covered, surface.cols, surface.rows, surface.previous_body_layers, surface.previous_tag_layers, surface.previous_regions); + try buildDecor(g, gpa, surface, &groups, layout, win_w, win_h, cursors_shown); - const page = ground(theme_bg, g.transparent); + const page = ground(chrome.page, g.transparent); const background_opacity = backgroundOpacity(g.applied_window_opacity); - const tagline_base = pardes.Cell{ - .style = .{ .bg = .{ .rgb = tagline_rgb }, .font_role = .tagline }, - .default = false, - }; var color_target = std.mem.zeroes(c.SDL_GPUColorTargetInfo); color_target.texture = scene; color_target.clear_color = if (page.clear) .{ .r = 0, .g = 0, .b = 0, .a = 0 } else .{ @@ -5237,28 +5348,21 @@ fn renderFrame( while (row < surface.rows) : (row += 1) { var col: u16 = 0; while (col < surface.cols) : (col += 1) { - if (covered[@as(usize, row) * surface.cols + col]) continue; - const batch_index = paintBatchAt(&paint_plan, col, row); - const track = paint_plan.batches[batch_index].track; - const data_effect = if (track) |active| - active.effect == .dissolve - else - false; - const data_diff = data_effect and gripCellChanged(surface, col, row); - const logical_idx: u32 = @as(u32, row) * surface.cols + col; + const at = @as(usize, row) * surface.cols + col; + if (covered[at].layer and !covered[at].floating) continue; + const group_index = if (covered[at].floating) groups.guides else groupAt(&groups, col, row); + const track = groups.items[group_index].track; + const data_effect = if (track) |active| active.effect == .dissolve else false; + const data_diff = data_effect and gripCellChanged(surface, covered, previous_covered, col, row); const instance_count = if (data_diff) - cellInstanceCount(&surface.previous_cells[logical_idx]) + cellInstanceCount(surface.at(col, row)) + cellInstanceCount(&surface.previous_cells[at]) + cellInstanceCount(&surface.cells[at]) else - cellInstanceCount(surface.at(col, row)); - paint_plan.batches[batch_index].cell_count = std.math.add( - u32, - paint_plan.batches[batch_index].cell_count, - instance_count, - ) catch return error.GpuCapacity; + cellInstanceCount(&surface.cells[at]); + groups.items[group_index].cell_count = std.math.add(u32, groups.items[group_index].cell_count, instance_count) catch return error.GpuCapacity; } } - for (paint_plan.batches[1..paint_plan.len]) |*batch| { - const track = batch.track.?; + for (groups.items[1..][0..groups.tracks]) |*group| { + const track = group.track.?; const duplicate_under = track.effect == .vertical and track.phase == .opening; if (!duplicate_under and track.phase != .closing) continue; row = 0; @@ -5266,33 +5370,29 @@ fn renderFrame( var col: u16 = 0; while (col < surface.cols) : (col += 1) { if (!boxContains(track.contentBox(), col, row)) continue; - if (previous_covered[@as(usize, row) * surface.cols + col]) continue; - const destination = if (duplicate_under) &paint_plan.batches[0] else batch; - const logical_idx: u32 = @as(u32, row) * surface.cols + col; - destination.cell_count = std.math.add( - u32, - destination.cell_count, - cellInstanceCount(&surface.previous_cells[logical_idx]), - ) catch return error.GpuCapacity; + const at = @as(usize, row) * surface.cols + col; + if (previous_covered[at].layer) continue; + const destination = if (duplicate_under) &groups.items[0] else group; + destination.cell_count = std.math.add(u32, destination.cell_count, cellInstanceCount(&surface.previous_cells[at])) catch return error.GpuCapacity; } } } for (surface.bodyLayers()) |*layer| { if (layer.rows == 0) continue; - const batch = &paint_plan.batches[paintBatchAt(&paint_plan, layer.viewport.x, layer.viewport.y)]; + const group = &groups.items[groupAt(&groups, layer.viewport.x, layer.viewport.y)]; const bottom = @as(f32, @floatFromInt(layer.viewport.y + layer.viewport.h)) * layout.h; for (0..layer.rows) |lr| { if (layer.rowTop(@intCast(lr), layout.h, @floatFromInt(g.tagline_height)) >= bottom) break; - batch.cell_count += layer.cols + @as(u32, if (lr < layer.context_rows) 1 else 0) + @as(u32, @intFromBool(layer.hasContextBorderAfter(lr))); + group.cell_count += layer.cols + @as(u32, if (lr < layer.context_rows) 1 else 0) + @as(u32, @intFromBool(layer.hasContextBorderAfter(lr))); } } - for (paint_plan.batches[1..paint_plan.len], 1..) |batch, batch_index| { - const track = batch.track.?; + for (groups.items[1..][0..groups.tracks], 1..) |group, index| { + const track = group.track.?; const under = track.effect == .vertical and track.phase == .opening; if (!under and track.phase != .closing and track.effect != .dissolve) continue; for (surface.previous_body_layers) |*layer| { if (layer.rows == 0 or layer.serial != track.serial) continue; - const destination = if (under) &paint_plan.batches[0] else &paint_plan.batches[batch_index]; + const destination = &groups.items[if (under) 0 else index]; const bottom = @as(f32, @floatFromInt(layer.viewport.y + layer.viewport.h)) * layout.h; for (0..layer.rows) |lr| { if (layer.rowTop(@intCast(lr), layout.h, @floatFromInt(g.tagline_height)) >= bottom) break; @@ -5301,29 +5401,29 @@ fn renderFrame( } } for (surface.tagLayers()) |*layer| { - if (layer.cols == 0) continue; - const batch = &paint_plan.batches[paintBatchAt(&paint_plan, layer.viewport.x, layer.viewport.y)]; - batch.cell_count += tagLayerCellCount(g, layer) + 1; + if (layer.rows == 0) continue; + const group_index = if (layer.kind == .notice) noticeGroup(&groups, layer) else groupAt(&groups, layer.viewport.x, layer.viewport.y); + groups.items[group_index].cell_count += (tagLayerCellCount(g, layer) + 1) * layer.rows; } - for (paint_plan.batches[1..paint_plan.len], 1..) |batch, batch_index| { - const track = batch.track.?; + for (groups.items[1..][0..groups.tracks], 1..) |group, index| { + const track = group.track.?; const under = track.effect == .vertical and track.phase == .opening; if (!under and track.phase != .closing and track.effect != .dissolve) continue; for (surface.previous_tag_layers) |*layer| { - if (layer.cols == 0 or layer.kind != .pane or layer.serial != track.serial) continue; - const destination = if (under) &paint_plan.batches[0] else &paint_plan.batches[batch_index]; - destination.cell_count += tagLayerCellCount(g, layer) + 1; + if (layer.rows == 0 or layer.kind != .pane or layer.serial != track.serial) continue; + groups.items[if (under) 0 else index].cell_count += (tagLayerCellCount(g, layer) + 1) * layer.rows; } } - var cell_next: [pardes.MAX_PANES * 2 + 1]u32 = @splat(0); + var cell_next: [pardes.MAX_PANES * 2 + 4]u32 = @splat(0); var cell_total: u32 = 0; - for (paint_plan.batches[0..paint_plan.len], 0..) |*batch, batch_index| { - batch.cell_start = cell_total; - cell_next[batch_index] = cell_total; - cell_total = std.math.add(u32, cell_total, batch.cell_count) catch return error.GpuCapacity; + for (groups.items[0..groups.len], 0..) |*group, index| { + group.cell_start = cell_total; + cell_next[index] = cell_total; + cell_total = std.math.add(u32, cell_total, group.cell_count) catch return error.GpuCapacity; } - if (cell_total != 0) { - const capacity = std.math.add(u32, cell_total, cells) catch return error.GpuCapacity; + const decor_len: u32 = @intCast(g.decor.items.len); + if (cell_total != 0 or decor_len != 0) { + const capacity = std.math.add(u32, cell_total, cells + decor_len) catch return error.GpuCapacity; try ensureVbuf(g, capacity); const vptr: [*]u8 = @ptrCast(c.SDL_MapGPUTransferBuffer(g.device, g.vxfer.?, false) orelse { @@ -5337,45 +5437,40 @@ fn renderFrame( row = 0; while (row < surface.rows) : (row += 1) { const line = surface.cells[@as(usize, row) * surface.cols ..][0..surface.cols]; + const line_cover = covered[@as(usize, row) * surface.cols ..][0..surface.cols]; const line_cursor: ?usize = if (surface.cursor) |cu| if (cu.y == row) cu.x else null else null; var col: u16 = 0; while (col < surface.cols) : (col += 1) { - if (covered[@as(usize, row) * surface.cols + col]) continue; - const batch_index = paintBatchAt(&paint_plan, col, row); - const track = paint_plan.batches[batch_index].track; - const logical_idx: u32 = @as(u32, row) * surface.cols + col; - const data_effect = if (track) |active| - active.effect == .dissolve - else - false; - const data_diff = data_effect and gripCellChanged(surface, col, row); - if (data_diff) { - emitSurfaceCell( - g, - core, - instances, - &cell_next[batch_index], - col, - row, - layout, - win_w, - win_h, - track, - surface.previous_cells[@as(usize, row) * surface.cols ..][0..surface.cols], - col, - null, - &tagline_base, - paneGripCell(surface.previous_tag_layers, surface.previous_cells, surface.cols, col, row), - true, - false, - page, - ); - } + const at = @as(usize, row) * surface.cols + col; + if (covered[at].layer and !covered[at].floating) continue; + const group_index = if (covered[at].floating) groups.guides else groupAt(&groups, col, row); + const track = groups.items[group_index].track; + const data_effect = if (track) |active| active.effect == .dissolve else false; + const data_diff = data_effect and gripCellChanged(surface, covered, previous_covered, col, row); + if (data_diff) emitSurfaceCell( + g, + chrome, + instances, + &cell_next[group_index], + col, + row, + layout, + win_w, + win_h, + track, + surface.previous_cells[@as(usize, row) * surface.cols ..][0..surface.cols], + previous_covered[@as(usize, row) * surface.cols ..][0..surface.cols], + col, + null, + true, + false, + page, + ); emitSurfaceCell( g, - core, + chrome, instances, - &cell_next[batch_index], + &cell_next[group_index], col, row, layout, @@ -5383,12 +5478,11 @@ fn renderFrame( win_h, if (data_effect and !data_diff) null else track, line, + line_cover, col, line_cursor, - &tagline_base, - paneGripCell(surface.tagLayers(), surface.cells, surface.cols, col, row), false, - paint_plan.len == 1 and logical_idx == cursor_idx and !cursor_bar and bodyLayerAt(surface, col, row) == null, + cursors_shown and at == cursor_idx and !cursor_bar and bodyLayerAt(surface, col, row) == null, page, ); } @@ -5397,36 +5491,36 @@ fn renderFrame( // is a tag layer, and instances paint in emission order. for (surface.bodyLayers()) |*layer| { if (layer.rows == 0) continue; - const batch_index = paintBatchAt(&paint_plan, layer.viewport.x, layer.viewport.y); - emitBodyLayer(g, instances, &cell_next[batch_index], layer, win_w, win_h, paint_plan.batches[batch_index].track, page, paint_plan.len == 1, false, topbar_pane_border_rgb); + const group_index = groupAt(&groups, layer.viewport.x, layer.viewport.y); + emitBodyLayer(g, instances, &cell_next[group_index], layer, win_w, win_h, groups.items[group_index].track, page, cursors_shown, false, chrome.topbar_rule); } for (surface.tagLayers()) |*layer| { - if (layer.cols == 0) continue; - const batch_index = paintBatchAt(&paint_plan, layer.viewport.x, layer.viewport.y); - emitTagLayer(g, instances, &cell_next[batch_index], layer, win_w, win_h, paint_plan.batches[batch_index].track, page, paint_plan.len == 1, false); + if (layer.rows == 0) continue; + const track_index = groupAt(&groups, layer.viewport.x, layer.viewport.y); + // A notice floats over the panes, moving with its own. + const group_index = if (layer.kind == .notice) noticeGroup(&groups, layer) else track_index; + emitTagLayer(g, instances, &cell_next[group_index], layer, win_w, win_h, groups.items[track_index].track, page, cursors_shown, false); } - for (paint_plan.batches[1..paint_plan.len], 1..) |batch, batch_index| { - const track = batch.track.?; + for (groups.items[1..][0..groups.tracks], 1..) |group, index| { + const track = group.track.?; const under = track.effect == .vertical and track.phase == .opening; if (!under and track.phase != .closing and track.effect != .dissolve) continue; for (surface.previous_tag_layers) |*layer| { - if (layer.cols == 0 or layer.kind != .pane or layer.serial != track.serial) continue; - const destination: usize = if (under) 0 else batch_index; - emitTagLayer(g, instances, &cell_next[destination], layer, win_w, win_h, if (under) null else track, page, false, track.effect == .dissolve); + if (layer.rows == 0 or layer.kind != .pane or layer.serial != track.serial) continue; + emitTagLayer(g, instances, &cell_next[if (under) 0 else index], layer, win_w, win_h, if (under) null else track, page, false, track.effect == .dissolve); } } - for (paint_plan.batches[1..paint_plan.len], 1..) |batch, batch_index| { - const track = batch.track.?; + for (groups.items[1..][0..groups.tracks], 1..) |group, index| { + const track = group.track.?; const under = track.effect == .vertical and track.phase == .opening; if (!under and track.phase != .closing and track.effect != .dissolve) continue; for (surface.previous_body_layers) |*layer| { if (layer.rows == 0 or layer.serial != track.serial) continue; - const destination: usize = if (under) 0 else batch_index; - emitBodyLayer(g, instances, &cell_next[destination], layer, win_w, win_h, if (under) null else track, page, false, track.effect == .dissolve, topbar_pane_border_rgb); + emitBodyLayer(g, instances, &cell_next[if (under) 0 else index], layer, win_w, win_h, if (under) null else track, page, false, track.effect == .dissolve, chrome.topbar_rule); } } - for (paint_plan.batches[1..paint_plan.len], 1..) |batch, batch_index| { - const track = batch.track.?; + for (groups.items[1..][0..groups.tracks], 1..) |group, index| { + const track = group.track.?; const duplicate_under = track.effect == .vertical and track.phase == .opening; if (!duplicate_under and track.phase != .closing) continue; row = 0; @@ -5434,13 +5528,12 @@ fn renderFrame( var col: u16 = 0; while (col < surface.cols) : (col += 1) { if (!boxContains(track.contentBox(), col, row)) continue; - if (previous_covered[@as(usize, row) * surface.cols + col]) continue; - const destination: usize = if (duplicate_under) 0 else batch_index; + if (previous_covered[@as(usize, row) * surface.cols + col].layer) continue; emitSurfaceCell( g, - core, + chrome, instances, - &cell_next[destination], + &cell_next[if (duplicate_under) 0 else index], col, row, layout, @@ -5448,10 +5541,9 @@ fn renderFrame( win_h, if (duplicate_under) null else track, surface.previous_cells[@as(usize, row) * surface.cols ..][0..surface.cols], + previous_covered[@as(usize, row) * surface.cols ..][0..surface.cols], col, null, - &tagline_base, - paneGripCell(surface.previous_tag_layers, surface.previous_cells, surface.cols, col, row), false, false, page, @@ -5459,119 +5551,141 @@ fn renderFrame( } } } - for (paint_plan.batches[0..paint_plan.len], 0..) |batch, batch_index| - std.debug.assert(cell_next[batch_index] == batch.cell_start + batch.cell_count); + for (groups.items[0..groups.len], 0..) |group, index| + std.debug.assert(cell_next[index] == group.cell_start + group.cell_count); shifted = emitScrollRows(g, instances, cell_total, surface, layout, win_w, win_h, page); + @memcpy(instances[cell_total + shifted ..][0..decor_len], g.decor.items); c.SDL_UnmapGPUTransferBuffer(g.device, g.vxfer.?); if (g.atlas_dirty_top < g.atlas_dirty_bottom) uploadAtlas(g, cmd); const copy = c.SDL_BeginGPUCopyPass(cmd); const src = c.SDL_GPUTransferBufferLocation{ .transfer_buffer = g.vxfer.?, .offset = 0 }; - const dst = c.SDL_GPUBufferRegion{ .buffer = g.vbuf.?, .offset = 0, .size = (cell_total + shifted) * @sizeOf(CellInstance) }; + const dst = c.SDL_GPUBufferRegion{ .buffer = g.vbuf.?, .offset = 0, .size = (cell_total + shifted + decor_len) * @sizeOf(CellInstance) }; c.SDL_UploadToGPUBuffer(copy, &src, &dst, false); c.SDL_EndGPUCopyPass(copy); } + build_zone.end(); + building = false; const rp = c.SDL_BeginGPURenderPass(cmd, &color_target, 1, null); pushLayerOpacity(cmd, rp, background_opacity); const whole = c.SDL_Rect{ .x = 0, .y = 0, .w = @intCast(sw), .h = @intCast(sh) }; - for (paint_plan.batches[0..paint_plan.len], 0..) |batch, batch_index| { - const has_shifted = batch_index == 0 and shifted != 0; - if ((batch.cell_count != 0 or has_shifted) and g.vbuf != null) { + const decor_base = cell_total + shifted; + for (groups.items[0..groups.len], 0..) |group, index| { + const has_shifted = index == 0 and shifted != 0; + if ((group.cell_count != 0 or has_shifted) and g.vbuf != null) { c.SDL_BindGPUGraphicsPipeline(rp, g.pipeline); const samp_binding = c.SDL_GPUTextureSamplerBinding{ .texture = g.atlas_tex, .sampler = g.atlas_sampler }; c.SDL_BindGPUFragmentSamplers(rp, 0, &samp_binding, 1); - if (batch.cell_count != 0) { - const panel_clipped = if (batch.track) |active| active.effect == .vertical else false; - if (panel_clipped) { - const clip = panelBoxScissor(g, batch.track.?.contentBox(), sw, sh); - c.SDL_SetGPUScissor(rp, &clip); - } - const binding = c.SDL_GPUBufferBinding{ - .buffer = g.vbuf.?, - .offset = batch.cell_start * @sizeOf(CellInstance), - }; + if (group.cell_count != 0) { + const binding = c.SDL_GPUBufferBinding{ .buffer = g.vbuf.?, .offset = group.cell_start * @sizeOf(CellInstance) }; c.SDL_BindGPUVertexBuffers(rp, 0, &binding, 1); - c.SDL_DrawGPUPrimitives(rp, 6, batch.cell_count, 0, 0); - if (panel_clipped) c.SDL_SetGPUScissor(rp, &whole); + c.SDL_DrawGPUPrimitives(rp, 6, group.cell_count, 0, 0); } if (has_shifted) { const clip = scrollScissor(g, layout, sw, sh); c.SDL_SetGPUScissor(rp, &clip); - const binding = c.SDL_GPUBufferBinding{ - .buffer = g.vbuf.?, - .offset = cell_total * @sizeOf(CellInstance), - }; + const binding = c.SDL_GPUBufferBinding{ .buffer = g.vbuf.?, .offset = cell_total * @sizeOf(CellInstance) }; c.SDL_BindGPUVertexBuffers(rp, 0, &binding, 1); c.SDL_DrawGPUPrimitives(rp, 6, shifted, 0, 0); c.SDL_SetGPUScissor(rp, &whole); } } - if (batch.image_count != 0) - drawNativeImagesGpu(g, rp, surface, &paint_plan, batch_index); + if (group.image_count != 0) drawNativeImagesGpu(g, rp, surface, group, whole); + if (group.decor_count != 0 and g.vbuf != null) { + c.SDL_BindGPUGraphicsPipeline(rp, g.decor_pipeline); + // Ink keeps its colour at any WindowOpacity. + pushLayerOpacity(cmd, rp, if (index == groups.ink) 1 else background_opacity); + const binding = c.SDL_GPUBufferBinding{ .buffer = g.vbuf.?, .offset = (decor_base + group.decor_start) * @sizeOf(CellInstance) }; + c.SDL_BindGPUVertexBuffers(rp, 0, &binding, 1); + c.SDL_DrawGPUPrimitives(rp, 6, group.decor_count, 0, 0); + } } drawOverlayGpu(g, cmd, rp, overlay_count); c.SDL_EndGPURenderPass(rp); - var rendered_scene: crt.Frame = .{}; if (scene_on) { - var crt_target = std.mem.zeroes(c.SDL_GPUColorTargetInfo); - crt_target.texture = target; - crt_target.load_op = c.SDL_GPU_LOADOP_DONT_CARE; - crt_target.store_op = c.SDL_GPU_STOREOP_STORE; - const crt_pass = c.SDL_BeginGPURenderPass(cmd, &crt_target, 1, null); - c.SDL_BindGPUGraphicsPipeline(crt_pass, g.crt_pipeline); - const samp_binding = c.SDL_GPUTextureSamplerBinding{ .texture = g.scene_tex.?, .sampler = g.linear_sampler }; - c.SDL_BindGPUFragmentSamplers(crt_pass, 0, &samp_binding, 1); - const now_ns = c.SDL_GetTicksNS(); - const time_wrap_ns: u64 = 4096 * std.time.ns_per_s; - const time_seconds: f32 = @floatCast( - @as(f64, @floatFromInt(now_ns % time_wrap_ns)) / @as(f64, std.time.ns_per_s), - ); - rendered_scene = .{ - .effects = .{ - .crt = scene_effects.crt, - .ripple = scene_effects.ripple, - .glitch = scene_effects.glitch, - }, - .time_seconds = time_seconds, - }; - const crt_uniforms = [8]f32{ - time_seconds, - @floatFromInt((now_ns / (std.time.ns_per_s / 60)) % 65_536), - @floatFromInt(sw), - @floatFromInt(sh), - @floatFromInt(@intFromBool(scene_effects.crt)), - @floatFromInt(@intFromBool(scene_effects.ripple)), - @floatFromInt(@intFromBool(scene_effects.glitch)), - 0, + if (core) |p| { + var boxes: [max_cursors]CursorBox = undefined; + const cursors = if (cursors_shown) cursorBoxes(g, surface, layout, win_h, &boxes) else 0; + g.post.describe(.{ + .cursor = if (cursors > 0) boxes[0] else null, + .background = chrome.page orelse bg_default, + .foreground = chrome.fg orelse fg_default, + .selection_foreground = p.theme().sel_fg, + .selection_background = p.theme().sel_bg, + }); + } + const chain_zone = tracy.zone(@src(), "post chain"); + defer chain_zone.end(); + g.post.draw(g.device, cmd, g.linear_sampler, g.swapchain_format, g.scene_tex.?, target, sw, sh, c.SDL_GetTicksNS(), background_opacity >= 1) catch { + g.scene_target_failed = true; }; - c.SDL_PushGPUFragmentUniformData(cmd, 0, &crt_uniforms, @sizeOf(@TypeOf(crt_uniforms))); - c.SDL_DrawGPUPrimitives(crt_pass, 3, 1, 0, 0); - c.SDL_EndGPURenderPass(crt_pass); } + command_consumed = true; + const shown = try finishFrame(g, gpa, cmd, frame_target, if (groups.tracks != 0) groups.items[1].track.?.frame else null); + if (shown and groups.tracks == 0) rememberPresentedImages(g, gpa, surface); + return shown; +} + +const Target = struct { texture: *c.SDL_GPUTexture, w: u32, h: u32 }; + +/// What this frame draws into: the capture texture in test mode (the grid's +/// size plus PARDES_TEST_PAD) or with a soft presenter, else the swapchain's +/// image; null when there is none to be had this time. +fn acquireTarget(g: *Gui, cmd: *c.SDL_GPUCommandBuffer, capture_w: u32, capture_h: u32) !?Target { if (g.capture) { - command_consumed = true; - try captureFrame(g, gpa, cmd, target, sw, sh); - g.presented_scene = rendered_scene; - if (paint_plan.len == 1) rememberPresentedImages(g, gpa, surface); + if (capture_w == 0 or capture_h == 0) return null; + try ensureCaptureTexture(g, capture_w, capture_h); + return .{ .texture = g.capture_tex.?, .w = capture_w, .h = capture_h }; + } + if (g.soft_present) { + var pw: c_int = 0; + var ph: c_int = 0; + if (!c.SDL_GetWindowSizeInPixels(g.window, &pw, &ph) or pw <= 0 or ph <= 0) return null; + try ensureCaptureTexture(g, @intCast(pw), @intCast(ph)); + return .{ .texture = g.capture_tex.?, .w = @intCast(pw), .h = @intCast(ph) }; + } + var swap_tex: ?*c.SDL_GPUTexture = null; + var sw: u32 = 0; + var sh: u32 = 0; + if (!c.SDL_AcquireGPUSwapchainTexture(cmd, g.window, &swap_tex, &sw, &sh)) return null; + // A busy swapchain skips the frame. + return .{ .texture = swap_tex orelse return null, .w = sw, .h = sh }; +} + +/// Submits the frame: captured, handed to the soft presenter, or presented. +fn finishFrame(g: *Gui, gpa: std.mem.Allocator, cmd: *c.SDL_GPUCommandBuffer, target: Target, transition: ?u16) !bool { + if (g.capture) { + try captureFrame(g, gpa, cmd, target.texture, target.w, target.h, transition); return true; } if (g.soft_present) { - command_consumed = true; - try softPresentFrame(g, cmd, target, sw, sh); - g.presented_scene = rendered_scene; - if (paint_plan.len == 1) rememberPresentedImages(g, gpa, surface); + try softPresentFrame(g, cmd, target.texture, target.w, target.h); return true; } - command_consumed = true; - const submitted = c.SDL_SubmitGPUCommandBuffer(cmd); - if (submitted) { - g.presented_scene = rendered_scene; - if (paint_plan.len == 1) rememberPresentedImages(g, gpa, surface); + return c.SDL_SubmitGPUCommandBuffer(cmd); +} + +/// Redraw level A (docs §5.5): the post chain alone, over the frame the core +/// last drew, for a pass that moves on its own. No core render, no cell. +fn redrawPost(g: *Gui, gpa: std.mem.Allocator) void { + const scene = g.scene_tex orelse return; + const cmd = c.SDL_AcquireGPUCommandBuffer(g.device) orelse return; + const target = (acquireTarget(g, cmd, g.scene_tex_w, g.scene_tex_h) catch null) orelse { + _ = c.SDL_SubmitGPUCommandBuffer(cmd); + return; + }; + // A window the retained frame no longer fits waits for the core's. + if (target.w != g.scene_tex_w or target.h != g.scene_tex_h) { + _ = c.SDL_SubmitGPUCommandBuffer(cmd); + return; } - return submitted; + const zone = tracy.zone(@src(), "post chain redraw"); + g.post.draw(g.device, cmd, g.linear_sampler, g.swapchain_format, scene, target.texture, target.w, target.h, c.SDL_GetTicksNS(), backgroundOpacity(g.applied_window_opacity) >= 1) catch {}; + zone.end(); + _ = finishFrame(g, gpa, cmd, target, null) catch {}; } const ResolvedCell = struct { @@ -5585,24 +5699,6 @@ const ResolvedCell = struct { const topbarPaneBorderPixels = pardes.topbarPaneBorderPixels; const taglineBandOffset = pardes.taglineBandOffset; -fn topbarPaneBorderHeight(surface: *const pardes.Surface, top: u16, cell_h: u32, tagline_h: u32) ?u32 { - if (top == 0 or surface.rows <= top) return null; - const height = topbarPaneBorderPixels(cell_h, tagline_h); - if (height == 0) return null; - const base = @as(usize, top) * surface.cols; - for (surface.cells[base..][0..surface.cols]) |cell| - if (!cell.default and cell.style.font_role == .tagline) return height; - return null; -} - -fn bottomTaglinePresent(surface: *const pardes.Surface) bool { - if (surface.rows == 0) return false; - const base = @as(usize, surface.rows - 1) * surface.cols; - for (surface.cells[base..][0..surface.cols]) |cell| - if (!cell.default and cell.style.font_role == .tagline) return true; - return false; -} - test "tagline bands center in their cells and Tagbottom faces the window edge" { const cell_h: u32 = 20; const tagline_h: u32 = 16; @@ -5685,75 +5781,18 @@ fn cellInstanceCount(cell: *const pardes.Cell) u32 { return if (cellFontRole(cell) == .tagline) 2 else 1; } -fn taglineBaseRgb(core: *const pardes.Pardes, col: u16, row: u16) [3]u8 { - const chrome = core.chromeTheme(); - if (!core.settings.focus_tint) return chrome.tag_bg; - if (row >= core.topBarHeight() and row < core.topBarHeight() + core.columnBarHeight()) { - for (0..core.ncol) |column| for (core.col_panes[column][0..core.col_n[column]]) |id| { - if (id != core.active) continue; - const x = core.col_x[column]; - if (col >= x and col - x < core.col_w[column]) return chrome.tag_active_bg; - }; - } - const r = core.rects[core.active]; - const pane = core.panes[core.active] orelse return chrome.tag_bg; - const tag_y = core.tagTop(pane, r); - return if (r.h > 0 and row >= tag_y and row < tag_y + pane.tag_rows and col >= r.x and col - r.x < r.w) chrome.tag_active_bg else chrome.tag_bg; -} - -test "compact column and pane underlays share focus tint without tinting the global tag" { - const core = try pardes.Pardes.init(std.testing.allocator, .{ .cols = 120, .rows = 24 }); - defer core.deinit(); - _ = try core.newShell(1, ""); - try std.testing.expect(pardes.layout.splitColumn(core, 0, 1, false)); - pardes.test_api.sync(core); - core.active = 1; - const active = core.rects[1]; - const inactive = core.rects[0]; - const chrome = core.chromeTheme(); - try std.testing.expectEqual(chrome.tag_bg, taglineBaseRgb(core, active.x, 0)); - try std.testing.expectEqual(chrome.tag_active_bg, taglineBaseRgb(core, active.x, pardes.TOPBAR_H)); - try std.testing.expectEqual(chrome.tag_bg, taglineBaseRgb(core, inactive.x, pardes.TOPBAR_H)); - try std.testing.expectEqual(chrome.tag_active_bg, taglineBaseRgb(core, active.x, active.y)); - core.settings.focus_tint = false; - try std.testing.expectEqual(chrome.tag_bg, taglineBaseRgb(core, active.x, pardes.TOPBAR_H)); -} - -fn tagLayerIn(layers: []const pardes.TagLayer, col: u16, row: u16) ?*const pardes.TagLayer { +fn tagLayerIn(layers: []const pardes.Layer, col: u16, row: u16) ?*const pardes.Layer { for (layers) |*layer| { const r = layer.viewport; - if (layer.cols > 0 and row == r.y and col >= r.x and col - r.x < r.w) return layer; + if (layer.rows > 0 and row >= r.y and row - r.y < layer.rows and col >= r.x and col - r.x < r.w) return layer; } return null; } -/// Marks the grid cells a body or tag layer covers, which the layers paint -/// themselves: the grid's cell loops skip them. Filling each layer's rectangle -/// once replaces scanning every layer for every cell, which was a third of the -/// gui's CPU on a full screen of text. It marks exactly the cells bodyLayerIn -/// and tagLayerIn find a layer for: a tag layer covers only its viewport's -/// first row, and a viewport past the grid covers the grid's part of it. -fn coverLayers(cover: []bool, cols: u16, rows: u16, body_layers: []const pardes.BodyLayer, tag_layers: []const pardes.TagLayer) void { - @memset(cover, false); - for (body_layers) |*layer| { - const r = layer.viewport; - const right = @min(cols, @as(u32, r.x) + r.w); - if (layer.rows == 0 or r.x >= right) continue; - var y: u32 = r.y; - while (y < @min(rows, @as(u32, r.y) + r.h)) : (y += 1) @memset(cover[y * cols ..][r.x..right], true); - } - for (tag_layers) |*layer| { - const r = layer.viewport; - const right = @min(cols, @as(u32, r.x) + r.w); - if (layer.cols == 0 or r.y >= rows or r.x >= right) continue; - @memset(cover[@as(usize, r.y) * cols ..][r.x..right], true); - } -} - -fn expectCoverIsScan(cover: []const bool, cols: u16, rows: u16, body_layers: []const pardes.BodyLayer, tag_layers: []const pardes.TagLayer) !void { +fn expectCoverIsScan(cover: []const Cover, cols: u16, rows: u16, body_layers: []const pardes.Layer, tag_layers: []const pardes.Layer) !void { for (0..rows) |row| for (0..cols) |col| { const scan = bodyLayerIn(body_layers, @intCast(col), @intCast(row)) != null or tagLayerIn(tag_layers, @intCast(col), @intCast(row)) != null; - try std.testing.expectEqual(scan, cover[row * cols + col]); + try std.testing.expectEqual(scan, cover[row * cols + col].layer); }; } @@ -5767,7 +5806,7 @@ test "the layer cover is the per-cell layer scan, over a core's layouts and rand try std.testing.expect(pardes.layout.splitColumn(core, 0, 1, false)); pardes.layout.insert(core, 1, 1, 2); pardes.layout.insert(core, 0, 1, 3); - var cover: [97 * 31]bool = undefined; + var cover: [97 * 31]Cover = undefined; var notices = false; for (0..32) |step| { core.settings.tag_bottom = step & 1 != 0; @@ -5780,10 +5819,21 @@ test "the layer cover is the per-cell layer scan, over a core's layouts and rand } const s = try core.render(core.scratch.allocator()); try std.testing.expectEqual(@as(usize, cover.len), @as(usize, s.cols) * s.rows); - @memset(&cover, true); // what an earlier frame left - coverLayers(&cover, s.cols, s.rows, s.bodyLayers(), s.tagLayers()); + @memset(&cover, .{ .layer = true, .floating = true, .grip = true, .focus = true }); // what an earlier frame left + coverFrame(&cover, s.cols, s.rows, s.bodyLayers(), s.tagLayers(), s.regionList()); try expectCoverIsScan(&cover, s.cols, s.rows, s.bodyLayers(), s.tagLayers()); - for (s.tagLayers()) |layer| notices = notices or (layer.cols != 0 and layer.kind == .notice); + // A grip's cells know their way to its glyph, and the focused + // pane's tag rows are the focused ones. + for (s.regionList()) |region| { + if (region.kind != .grip) continue; + for (0..region.rect.w) |offset| { + const cell = cover[@as(usize, region.rect.y) * s.cols + region.rect.x + offset]; + try std.testing.expect(cell.grip); + try std.testing.expectEqual(offset, cell.grip_offset); + try std.testing.expectEqual(region.owner == core.active, cell.focus); + } + } + for (s.tagLayers()) |layer| notices = notices or (layer.rows != 0 and layer.kind == .notice); } try std.testing.expect(notices); @@ -5800,30 +5850,30 @@ test "the layer cover is the per-cell layer scan, over a core's layouts and rand }; var prng = std.Random.DefaultPrng.init(0x6c61796572); const random = prng.random(); - var body: [pardes.MAX_PANES]pardes.BodyLayer = undefined; - var tag: [pardes.MAX_TAG_LAYERS]pardes.TagLayer = undefined; - var grid: [64 * 40]bool = undefined; + var body: [pardes.MAX_PANES]pardes.Layer = undefined; + var tag: [pardes.MAX_TAG_LAYERS]pardes.Layer = undefined; + var grid: [64 * 40]Cover = undefined; for (0..3000) |_| { const cols = random.intRangeAtMost(u16, 1, 64); const rows = random.intRangeAtMost(u16, 1, 40); const empty = random.intRangeAtMost(u8, 2, 5); // about one layer in `empty` is empty for (&body) |*layer| layer.* = .{ .rows = @intFromBool(random.uintLessThan(u8, empty) != 0), .viewport = gen.rect(random, cols, rows) }; - for (&tag) |*layer| layer.* = .{ .cols = @intFromBool(random.uintLessThan(u8, empty) != 0), .viewport = gen.rect(random, cols, rows) }; + for (&tag) |*layer| layer.* = .{ .rows = @intFromBool(random.uintLessThan(u8, empty) != 0), .viewport = gen.rect(random, cols, rows) }; const bodies = body[0..random.uintAtMost(usize, body.len)]; const tags = tag[0..random.uintAtMost(usize, tag.len)]; const cells = grid[0 .. @as(usize, cols) * rows]; - @memset(cells, random.boolean()); - coverLayers(cells, cols, rows, bodies, tags); + @memset(cells, .{ .layer = random.boolean() }); + coverFrame(cells, cols, rows, bodies, tags, &.{}); try expectCoverIsScan(cells, cols, rows, bodies, tags); } } -fn tagLayerCellCount(g: *const Gui, layer: *const pardes.TagLayer) u32 { +fn tagLayerCellCount(g: *const Gui, layer: *const pardes.Layer) u32 { const pixels = @as(u32, layer.viewport.w) * g.cell_w; return @min(layer.cols, (pixels + g.tagline_width - 1) / g.tagline_width); } -fn emitTagLayer(g: *Gui, instances: [*]CellInstance, next: *u32, layer: *const pardes.TagLayer, win_w: f32, win_h: f32, track: ?pardes.layout.Track, page: Ground, show_cursor: bool, old_layer: bool) void { +fn emitTagLayer(g: *Gui, instances: [*]CellInstance, next: *u32, layer: *const pardes.Layer, win_w: f32, win_h: f32, track: ?pardes.animation.Track, page: Ground, show_cursor: bool, old_layer: bool) void { const bw: f32 = @floatFromInt(g.cell_w); const bh: f32 = @floatFromInt(g.cell_h); const tw: f32 = @floatFromInt(g.tagline_width); @@ -5833,20 +5883,25 @@ fn emitTagLayer(g: *Gui, instances: [*]CellInstance, next: *u32, layer: *const p // A band sliding into place is drawn offset and cut at its row's top, so // it comes out from under whatever is above it. const slide = layer.slide * bh; - const top = @as(f32, @floatFromInt(layer.viewport.y)) * bh; // A window is rarely a whole number of cells wide: a band that ends at // the last column runs on through the leftover pixels to the edge. const band_right = if (win_w - right < bw) @max(right, win_w) else right; - emitInstance(g, instances, next.*, 0, layer.viewport.y, .{ .w = band_right - left, .h = bh, .x_off = left, .y_off = slide }, win_w, win_h, track, .body, (&background)[0..1], 0, null, old_layer, false, page); - if (slide != 0) clipInstanceTop(&instances[next.*], top, win_h); - next.* += 1; - const line_cursor: ?usize = if (layer.cursor) |cu| cu.col else null; - for (0..tagLayerCellCount(g, layer)) |col| { - const cursor = if (layer.cursor) |cu| show_cursor and !cu.bar and cu.col == col else false; - emitInstance(g, instances, next.*, @intCast(col), layer.viewport.y, .{ .w = tw, .h = bh, .x_off = left, .y_off = slide }, win_w, win_h, track, .tagline, layer.cells[0..layer.cols], col, line_cursor, old_layer, cursor, page); - clipInstanceRight(&instances[next.*], right, win_w); + // A row to each line, each a grid row with the tagline's glyphs. + for (0..layer.rows) |index| { + const y = layer.viewport.y + @as(u16, @intCast(index)); + const top = @as(f32, @floatFromInt(y)) * bh; + emitInstance(g, instances, next.*, 0, y, .{ .w = band_right - left, .h = bh, .x_off = left, .y_off = slide }, win_w, win_h, track, .body, (&background)[0..1], 0, null, old_layer, false, page); if (slide != 0) clipInstanceTop(&instances[next.*], top, win_h); next.* += 1; + const cells = layer.cells[index * layer.cols ..][0..layer.cols]; + const line_cursor: ?usize = if (layer.cursor) |cu| (if (cu.y == index) cu.x else null) else null; + for (0..tagLayerCellCount(g, layer)) |col| { + const cursor = if (layer.cursor) |cu| show_cursor and !cu.bar and cu.x == col and cu.y == index else false; + emitInstance(g, instances, next.*, @intCast(col), y, .{ .w = tw, .h = bh, .x_off = left, .y_off = slide }, win_w, win_h, track, .tagline, cells, col, line_cursor, old_layer, cursor, page); + clipInstanceRight(&instances[next.*], right, win_w); + if (slide != 0) clipInstanceTop(&instances[next.*], top, win_h); + next.* += 1; + } } } @@ -5858,11 +5913,11 @@ fn clipInstanceTop(instance: *CellInstance, top: f32, win_h: f32) void { instance.y0 = @max(instance.y1, limit); } -fn bodyLayerAt(surface: *const pardes.Surface, col: u16, row: u16) ?*const pardes.BodyLayer { +fn bodyLayerAt(surface: *const pardes.Surface, col: u16, row: u16) ?*const pardes.Layer { return bodyLayerIn(surface.bodyLayers(), col, row); } -fn bodyLayerIn(layers: []const pardes.BodyLayer, col: u16, row: u16) ?*const pardes.BodyLayer { +fn bodyLayerIn(layers: []const pardes.Layer, col: u16, row: u16) ?*const pardes.Layer { for (layers) |*layer| { const r = layer.viewport; if (layer.rows > 0 and col >= r.x and col - r.x < r.w and row >= r.y and row - r.y < r.h) return layer; @@ -5886,7 +5941,7 @@ fn clipBodyInstance(instance: *CellInstance, bottom: f32, win_h: f32) void { instance.y1 = limit; } -fn emitBodyLayer(g: *Gui, instances: [*]CellInstance, next: *u32, layer: *const pardes.BodyLayer, win_w: f32, win_h: f32, track: ?pardes.layout.Track, page: Ground, show_cursor: bool, old_layer: bool, border_rgb: [3]u8) void { +fn emitBodyLayer(g: *Gui, instances: [*]CellInstance, next: *u32, layer: *const pardes.Layer, win_w: f32, win_h: f32, track: ?pardes.animation.Track, page: Ground, show_cursor: bool, old_layer: bool, border_rgb: [3]u8) void { const bw: f32 = @floatFromInt(g.cell_w); const bh: f32 = @floatFromInt(g.cell_h); const tw: f32 = @floatFromInt(g.tagline_width); @@ -5936,42 +5991,23 @@ fn emitBodyLayer(g: *Gui, instances: [*]CellInstance, next: *u32, layer: *const } } -const GripCell = struct { cell: *const pardes.Cell, offset: u16 }; - -fn gripCellChanged(surface: *const pardes.Surface, col: u16, row: u16) bool { +/// A dissolving cell changes with its grip's glyph, which is the cell its +/// grip offset to the left, in this frame's grip or the last one's. +fn gripCellChanged(surface: *const pardes.Surface, covered: []const Cover, previous_covered: []const Cover, col: u16, row: u16) bool { if (surface.panelCellChanged(col, row)) return true; - if (paneGripCell(surface.tagLayers(), surface.cells, surface.cols, col, row)) |grip| { - if (surface.panelCellChanged(col - grip.offset, row)) return true; - } - if (paneGripCell(surface.previous_tag_layers, surface.previous_cells, surface.cols, col, row)) |grip| { - if (surface.panelCellChanged(col - grip.offset, row)) return true; - } + const at = @as(usize, row) * surface.cols + col; + for ([_]Cover{ covered[at], previous_covered[at] }) |cover| + if (cover.grip and surface.panelCellChanged(col -| cover.grip_offset, row)) return true; return false; } -fn paneGripCell(layers: []const pardes.TagLayer, cells: []const pardes.Cell, cols: u16, col: u16, row: u16) ?GripCell { - const at = @as(usize, row) * cols + col; - if (at >= cells.len or cells[at].default or cells[at].style.font_role != .tagline) return null; - for (layers) |layer| { - if (layer.cols == 0 or layer.kind != .pane or layer.viewport.x < pardes.TAG_TEXT_INSET or layer.viewport.y != row) continue; - const x = layer.viewport.x - pardes.TAG_TEXT_INSET; - if (col < x or col - x >= config.GUTTER) continue; - const index = @as(usize, row) * cols + x; - if (index >= cells.len) return null; - const cell = &cells[index]; - if (cell.default or cell.printableAscii() == ' ' or cell.style.invisible) return null; - return .{ .cell = cell, .offset = col - x }; - } - return null; -} - fn anchorInset(g: *const Gui, row: u16, win_h: f32) u32 { return taglineBandOffset(row, win_h, g.cell_h, g.tagline_height); } fn emitSurfaceCell( g: *Gui, - core: ?*const pardes.Pardes, + chrome: *const pardes.Chrome, instances: [*]CellInstance, next: *u32, col: u16, @@ -5979,20 +6015,22 @@ fn emitSurfaceCell( body_layout: CellLayout, win_w: f32, win_h: f32, - track: ?pardes.layout.Track, + track: ?pardes.animation.Track, line: []const pardes.Cell, + line_cover: []const Cover, at: usize, cursor: ?usize, - tagline_base: *const pardes.Cell, - grip: ?GripCell, old_layer: bool, is_cursor: bool, page: Ground, ) void { const role = cellFontRole(&line[at]); if (role == .tagline) { - var band_base = tagline_base.*; - if (core) |p| band_base.style.bg = .{ .rgb = taglineBaseRgb(p, col, row) }; + const here = line_cover[at]; + const band_base: pardes.Cell = .{ + .style = .{ .bg = .{ .rgb = if (here.focus) chrome.tag_focus_bg else chrome.tag_bg }, .font_role = .tagline }, + .default = false, + }; // The smaller font changes the ink, not the chrome's coverage. Painting // this underlay at tagline height leaves page-colored gutters between // adjacent workspace, column and pane tags at TaglineSize < 100. @@ -6000,27 +6038,32 @@ fn emitSurfaceCell( next.* += 1; // Tag glyphs keep their font size inside a full physical-width grip. emitInstance(g, instances, next.*, col, row, body_layout, win_w, win_h, track, .tagline, line, at, cursor, old_layer, is_cursor, page); + // A grip's glyph is the cell at its left edge, and a blank one is + // no glyph: its marks are decor. + const glyph = &line[at - @min(here.grip_offset, at)]; + const grip = here.grip and !glyph.default and glyph.printableAscii() != ' ' and !glyph.style.invisible; + const offset: u16 = if (grip) @min(here.grip_offset, at) else 0; // An anchor starts at its column's rule: its left edge is inset by // its top margin so the band frames it on the left as above and // below, and its mark moves right by half that to stay centered. - const inset: u32 = if (core) |p| if (std.mem.indexOfScalar(u16, p.col_x[0..p.ncol], col -| (if (grip) |indicator| indicator.offset else 0)) != null) anchorInset(g, row, win_h) else 0 else 0; - if (grip) |indicator| { + const inset: u32 = if (line_cover[at - offset].anchor) anchorInset(g, row, win_h) else 0; + if (grip) { // A grip is one glyph centered across the gutter, not text: it is // looked up by its codepoint's glyph, never shaped. - const drawn = glyphForCodepoint(g, cellCodepoint(indicator.cell)); - const cached = cachedGlyph(g, .{ .face = drawn.face, .glyph = drawn.glyph, .role = .tagline, .decoration = GlyphDecoration.fromCell(indicator.cell), .centered = true }); + const drawn = glyphForCodepoint(g, cellCodepoint(glyph)); + const cached = cachedGlyph(g, .{ .face = drawn.face, .glyph = drawn.glyph, .role = .tagline, .decoration = GlyphDecoration.fromCell(glyph), .centered = true }); const slot = cached orelse g.space_slot; - const offset: f32 = if (cached != null) @as(f32, @floatFromInt(@as(u32, indicator.offset) * g.cell_w)) - @as(f32, @floatFromInt(inset / 2)) else 0; - const resolved = resolveCell(g, indicator.cell[0..1], 0, null, .tagline, false, page); + const shift: f32 = if (cached != null) @as(f32, @floatFromInt(@as(u32, offset) * g.cell_w)) - @as(f32, @floatFromInt(inset / 2)) else 0; + const resolved = resolveCell(g, glyph[0..1], 0, null, .tagline, false, page); instances[next.*].fr = @as(f32, @floatFromInt(resolved.fg[0])) / 255; instances[next.*].fg = @as(f32, @floatFromInt(resolved.fg[1])) / 255; instances[next.*].fb = @as(f32, @floatFromInt(resolved.fg[2])) / 255; - instances[next.*].u0 = (@as(f32, @floatFromInt(slot.u)) + offset) / atlas_w; + instances[next.*].u0 = (@as(f32, @floatFromInt(slot.u)) + shift) / atlas_w; instances[next.*].v0 = @as(f32, @floatFromInt(slot.v)) / atlas_h; instances[next.*].v1 = @as(f32, @floatFromInt(slot.v + g.tagline_height)) / atlas_h; } instances[next.*].u1 = instances[next.*].u0 + @as(f32, @floatFromInt(g.cell_w)) / atlas_w; - if (inset > 0 and (grip == null or grip.?.offset == 0)) { + if (inset > 0 and (!grip or offset == 0)) { instances[next.*].x0 += @as(f32, @floatFromInt(inset)) / win_w * 2; instances[next.*].u0 += @as(f32, @floatFromInt(inset)) / atlas_w; } @@ -6032,8 +6075,7 @@ fn emitSurfaceCell( } test "small tagline fonts leave no background gutters between adjacent tags" { - const core = try pardes.Pardes.init(std.testing.allocator, .{ .cols = 80, .rows = 24 }); - defer core.deinit(); + const chrome: pardes.Chrome = .{}; var g: Gui = undefined; g.words = .{}; g.cell_w = 10; @@ -6046,7 +6088,7 @@ test "small tagline fonts leave no background gutters between adjacent tags" { var next: u32 = 0; for (0..3) |row| { // Column 1: past the anchor's inset edge at the column's left. - emitSurfaceCell(&g, core, &instances, &next, 1, @intCast(row), fixedCellLayout(&g), 800, 480, null, (&cell)[0..1], 0, null, &cell, null, false, false, Ground.opaqueRgb(bg_default)); + emitSurfaceCell(&g, &chrome, &instances, &next, 1, @intCast(row), fixedCellLayout(&g), 800, 480, null, (&cell)[0..1], &.{.{}}, 0, null, false, false, Ground.opaqueRgb(bg_default)); const base = instances[row * 2]; const ink = instances[row * 2 + 1]; try std.testing.expectApproxEqAbs(@as(f32, 20.0 / 480.0 * 2), base.y0 - base.y1, 0.0001); @@ -6059,12 +6101,12 @@ test "small tagline fonts leave no background gutters between adjacent tags" { // Column 0 is an anchor's edge: its ink is inset by the band's margin // (2 px here) and its underlay still covers the whole cell. next = 0; - emitSurfaceCell(&g, core, &instances, &next, 0, 1, fixedCellLayout(&g), 800, 480, null, (&cell)[0..1], 0, null, &cell, null, false, false, Ground.opaqueRgb(bg_default)); + emitSurfaceCell(&g, &chrome, &instances, &next, 0, 1, fixedCellLayout(&g), 800, 480, null, (&cell)[0..1], &.{.{ .anchor = true }}, 0, null, false, false, Ground.opaqueRgb(bg_default)); try std.testing.expectApproxEqAbs(@as(f32, 10.0 / 800.0 * 2), instances[0].x1 - instances[0].x0, 0.0001); try std.testing.expectApproxEqAbs(@as(f32, 8.0 / 800.0 * 2), instances[1].x1 - instances[1].x0, 0.0001); try std.testing.expectApproxEqAbs(@as(f32, 8) / atlas_w, instances[1].u1 - instances[1].u0, 0.0001); next = 0; - emitSurfaceCell(&g, null, &instances, &next, 0, 2, fixedCellLayout(&g), 800, 480, null, (&cell)[0..1], 0, null, &cell, null, true, false, Ground.opaqueRgb(bg_default)); + emitSurfaceCell(&g, &chrome, &instances, &next, 0, 2, fixedCellLayout(&g), 800, 480, null, (&cell)[0..1], &.{.{}}, 0, null, true, false, Ground.opaqueRgb(bg_default)); try std.testing.expectEqual(@as(u32, 2), next); try std.testing.expectApproxEqAbs(@as(f32, 16.0 / 480.0 * 2), instances[1].y0 - instances[1].y1, 0.0001); } @@ -6078,7 +6120,7 @@ fn emitInstance( layout: CellLayout, win_w: f32, win_h: f32, - track: ?pardes.layout.Track, + track: ?pardes.animation.Track, role: pardes.FontRole, line: []const pardes.Cell, at: usize, @@ -6178,24 +6220,25 @@ test "insert cursor overlays without replacing the character beneath it" { }; try std.testing.expectEqual(@as(u32, 'x'), cellCodepoint(&cell)); - var vertices: [6]OverlayVertex = undefined; - var builder: OverlayBuilder = .{ - .vertices = &vertices, - .win_w = 100, - .win_h = 100, - }; - addCursorBar(&builder, 2, 3, true, 8, .{ - .x_off = 0, - .y_off = 0, - .w = 10, - .h = 20, - }, .{ 32, 48, 64 }); - try std.testing.expectEqual(@as(usize, 6), builder.len); - try std.testing.expectApproxEqAbs(@as(f32, -0.32), vertices[0].y, 0.0001); - try std.testing.expectApproxEqAbs(@as(f32, -0.48), vertices[2].y, 0.0001); - try std.testing.expectApproxEqAbs(@as(f32, 32.0 / 255.0), vertices[0].r, 0.0001); - for (vertices) |vertex| try std.testing.expectEqual(@as(u32, 1), vertex.ink); - try std.testing.expect(!builder.ink); + // A bar at a tag cell: tagline-tall, centered in its row, in the + // cell's ink, drawn as decor over it. + var cells: [25]pardes.Cell = @splat(.{}); + cells[3 * 5 + 2] = .{ .default = false, .style = .{ .fg = .{ .rgb = .{ 32, 48, 64 } }, .font_role = .tagline } }; + const surface: pardes.Surface = .{ .cols = 5, .rows = 5, .cells = &cells, .cursor = .{ .x = 2, .y = 3, .bar = true } }; + var g: Gui = undefined; + g.decor = .empty; + defer g.decor.deinit(std.testing.allocator); + g.cell_w = 10; + g.cell_h = 20; + g.tagline_width = 8; + g.tagline_height = 8; + try cursorDecor(&g, std.testing.allocator, &surface, fixedCellLayout(&g), 100, 100); + try std.testing.expectEqual(@as(usize, 1), g.decor.items.len); + const bar = g.decor.items[0]; + try std.testing.expectApproxEqAbs(@as(f32, -0.32), bar.y0, 0.0001); + try std.testing.expectApproxEqAbs(@as(f32, -0.48), bar.y1, 0.0001); + try std.testing.expectApproxEqAbs(@as(f32, 32.0 / 255.0), bar.br, 0.0001); + try std.testing.expectEqual(@as(f32, 1), bar.fr); } fn palColor(idx: u8) [3]u8 { @@ -6705,17 +6748,24 @@ test "pane indicator halves share dissolve changes and safe exhausted atlas" { cells[0].text[0] = '$'; var previous = cells; previous[0].text[0] = '^'; - var layers = [_]pardes.TagLayer{.{ .kind = .pane, .serial = 1, .viewport = .{ .x = pardes.TAG_TEXT_INSET, .y = 0, .w = 3, .h = 1 }, .cols = 3 }}; var diffs: [12]pardes.PanelCellDiff = @splat(.unchanged); diffs[0] = pardes.PanelCellDiff.between(&previous[0], &cells[0]); - var surface: pardes.Surface = .{ .cols = 6, .rows = 2, .cells = &cells, .previous_cells = &previous, .previous_tag_layers = &layers, .cell_diffs = &diffs }; - surface.tag_layers[0] = layers[0]; - try std.testing.expect(gripCellChanged(&surface, 0, 0)); - try std.testing.expect(gripCellChanged(&surface, 1, 0)); - try std.testing.expect(!gripCellChanged(&surface, 2, 0)); - try std.testing.expect(paneGripCell(surface.tagLayers(), &cells, 6, 2, 0) == null); - layers[0].kind = .column; - try std.testing.expect(paneGripCell(&layers, &cells, 6, 0, 0) == null); + const surface: pardes.Surface = .{ .cols = 6, .rows = 2, .cells = &cells, .previous_cells = &previous, .cell_diffs = &diffs }; + // A grip two cells wide at the top left, in both frames. + const grip = [_]pardes.Region{.{ .kind = .grip, .serial = 1, .rect = .{ .x = 0, .y = 0, .w = 2, .h = 1 } }}; + var cover: [12]Cover = undefined; + var previous_cover: [12]Cover = undefined; + coverFrame(&cover, 6, 2, &.{}, &.{}, &grip); + coverFrame(&previous_cover, 6, 2, &.{}, &.{}, &grip); + try std.testing.expect(gripCellChanged(&surface, &cover, &previous_cover, 0, 0)); + try std.testing.expect(gripCellChanged(&surface, &cover, &previous_cover, 1, 0)); + try std.testing.expect(!gripCellChanged(&surface, &cover, &previous_cover, 2, 0)); + try std.testing.expect(!cover[2].grip); + // A column's grip has no glyph of a pane's. + coverFrame(&cover, 6, 2, &.{}, &.{}, &.{.{ .kind = .column_grip, .rect = .{ .x = 0, .y = 0, .w = 2, .h = 1 } }}); + try std.testing.expect(!cover[0].grip); + coverFrame(&cover, 6, 2, &.{}, &.{}, &grip); + const chrome: pardes.Chrome = .{}; const font = c.ui_font_new(font_ttf.ptr, @intCast(font_ttf.len)).?; defer c.ui_font_free(font); @@ -6739,7 +6789,7 @@ test "pane indicator halves share dissolve changes and safe exhausted atlas" { var instances: [4]CellInstance = undefined; var next: u32 = 0; for (0..2) |col| { - emitSurfaceCell(&g, null, &instances, &next, @intCast(col), 0, fixedCellLayout(&g), 100, 100, null, cells[0..6], col, null, &cells[2], .{ .cell = &cells[0], .offset = @intCast(col) }, old, false, Ground.opaqueRgb(bg_default)); + emitSurfaceCell(&g, &chrome, &instances, &next, @intCast(col), 0, fixedCellLayout(&g), 100, 100, null, cells[0..6], cover[0..6], col, null, old, false, Ground.opaqueRgb(bg_default)); try std.testing.expectEqual(@as(f32, 0), instances[col * 2 + 1].u0); try std.testing.expectEqual(old, instances[col * 2 + 1].effect & old_layer_bit != 0); } @@ -6894,10 +6944,12 @@ fn ensureVbuf(g: *Gui, cells: u32) !void { g.vbuf_cells = capacity; } -fn makePipeline(device: *c.SDL_GPUDevice, color_format: c.SDL_GPUTextureFormat) !*c.SDL_GPUGraphicsPipeline { +/// A pipeline over cell instances: the cells' own (ui.frag, the atlas, no +/// blending) or the decor's (decor.frag, blended like the overlay). +fn makePipeline(device: *c.SDL_GPUDevice, color_format: c.SDL_GPUTextureFormat, frag: []const u8, samplers: u32, blend: c.SDL_GPUColorTargetBlendState) !*c.SDL_GPUGraphicsPipeline { const vs = try makeShader(device, vert_spv, c.SDL_GPU_SHADERSTAGE_VERTEX, 0, 0); defer c.SDL_ReleaseGPUShader(device, vs); - const fs = try makeShader(device, frag_spv, c.SDL_GPU_SHADERSTAGE_FRAGMENT, 1, 1); + const fs = try makeShader(device, frag, c.SDL_GPU_SHADERSTAGE_FRAGMENT, samplers, 1); defer c.SDL_ReleaseGPUShader(device, fs); var vbuf_desc = c.SDL_GPUVertexBufferDescription{ @@ -6914,8 +6966,9 @@ fn makePipeline(device: *c.SDL_GPUDevice, color_format: c.SDL_GPUTextureFormat) .{ .location = 4, .buffer_slot = 0, .format = c.SDL_GPU_VERTEXELEMENTFORMAT_FLOAT4, .offset = @offsetOf(CellInstance, "panel_x0") }, .{ .location = 5, .buffer_slot = 0, .format = c.SDL_GPU_VERTEXELEMENTFORMAT_FLOAT4, .offset = @offsetOf(CellInstance, "present_x0") }, .{ .location = 6, .buffer_slot = 0, .format = c.SDL_GPU_VERTEXELEMENTFORMAT_UINT4, .offset = @offsetOf(CellInstance, "effect") }, + .{ .location = 7, .buffer_slot = 0, .format = c.SDL_GPU_VERTEXELEMENTFORMAT_FLOAT4, .offset = @offsetOf(CellInstance, "clip_x0") }, }; - var col_desc = c.SDL_GPUColorTargetDescription{ .format = color_format, .blend_state = std.mem.zeroes(c.SDL_GPUColorTargetBlendState) }; + var col_desc = c.SDL_GPUColorTargetDescription{ .format = color_format, .blend_state = blend }; var info = std.mem.zeroes(c.SDL_GPUGraphicsPipelineCreateInfo); info.vertex_shader = vs; @@ -7032,25 +7085,7 @@ fn makeImagePipeline(device: *c.SDL_GPUDevice, color_format: c.SDL_GPUTextureFor return c.SDL_CreateGPUGraphicsPipeline(device, &info) orelse error.GpuCreate; } -fn makeCrtPipeline(device: *c.SDL_GPUDevice, color_format: c.SDL_GPUTextureFormat) !*c.SDL_GPUGraphicsPipeline { - const vs = try makeShader(device, crt_vert_spv, c.SDL_GPU_SHADERSTAGE_VERTEX, 0, 0); - defer c.SDL_ReleaseGPUShader(device, vs); - const fs = try makeShader(device, crt_frag_spv, c.SDL_GPU_SHADERSTAGE_FRAGMENT, 1, 1); - defer c.SDL_ReleaseGPUShader(device, fs); - - var col_desc = c.SDL_GPUColorTargetDescription{ .format = color_format, .blend_state = std.mem.zeroes(c.SDL_GPUColorTargetBlendState) }; - var info = std.mem.zeroes(c.SDL_GPUGraphicsPipelineCreateInfo); - info.vertex_shader = vs; - info.fragment_shader = fs; - info.primitive_type = c.SDL_GPU_PRIMITIVETYPE_TRIANGLELIST; - info.rasterizer_state.fill_mode = c.SDL_GPU_FILLMODE_FILL; - info.rasterizer_state.cull_mode = c.SDL_GPU_CULLMODE_NONE; - info.multisample_state.sample_count = c.SDL_GPU_SAMPLECOUNT_1; - info.target_info = .{ .color_target_descriptions = &col_desc, .num_color_targets = 1 }; - return c.SDL_CreateGPUGraphicsPipeline(device, &info) orelse error.GpuCreate; -} - -fn makeShader(device: *c.SDL_GPUDevice, code: []const u8, stage: c.SDL_GPUShaderStage, n_samplers: u32, n_uniform_buffers: u32) !*c.SDL_GPUShader { +pub fn makeShader(device: *c.SDL_GPUDevice, code: []const u8, stage: c.SDL_GPUShaderStage, n_samplers: u32, n_uniform_buffers: u32) !*c.SDL_GPUShader { var info = std.mem.zeroes(c.SDL_GPUShaderCreateInfo); info.code = code.ptr; info.code_size = code.len; @@ -7227,7 +7262,10 @@ fn latencyNote(comptime fmt: []const u8, args: anytype) void { _ = libc.write(latency_fd, line.ptr, line.len); } -fn captureFrame(g: *Gui, gpa: std.mem.Allocator, cmd: *c.SDL_GPUCommandBuffer, target: *c.SDL_GPUTexture, sw: u32, sh: u32) !void { +/// Writes the frame to latest.ppm in the capture directory, and a panel +/// transition's frame `transition` to transition-<frame>.ppm too, so a test +/// can hold one partway (test/gui_golden.py). +fn captureFrame(g: *Gui, gpa: std.mem.Allocator, cmd: *c.SDL_GPUCommandBuffer, target: *c.SDL_GPUTexture, sw: u32, sh: u32, transition: ?u16) !void { const size = c.SDL_CalculateGPUTextureFormatSize(g.swapchain_format, sw, sh, 1); if (size == 0) { _ = c.SDL_SubmitGPUCommandBuffer(cmd); @@ -7260,10 +7298,12 @@ fn captureFrame(g: *Gui, gpa: std.mem.Allocator, cmd: *c.SDL_GPUCommandBuffer, t const mapped = c.SDL_MapGPUTransferBuffer(g.device, xfer, false) orelse return error.GpuMap; defer c.SDL_UnmapGPUTransferBuffer(g.device, xfer); const pixels: [*]const u8 = @ptrCast(mapped); - try writeCapturePpm(g, gpa, pixels[0..size], sw, sh); + try writeCapturePpm(g, gpa, pixels[0..size], sw, sh, "latest"); + var name: [24]u8 = undefined; + if (transition) |frame| try writeCapturePpm(g, gpa, pixels[0..size], sw, sh, std.fmt.bufPrint(&name, "transition-{d}", .{frame}) catch unreachable); } -fn writeCapturePpm(g: *Gui, gpa: std.mem.Allocator, pixels: []const u8, width: u32, height: u32) !void { +fn writeCapturePpm(g: *Gui, gpa: std.mem.Allocator, pixels: []const u8, width: u32, height: u32, name: []const u8) !void { // A latency trace times frames, and an 8 MB file write per frame would // stall the loop it is timing. if (g.capture_dir.len == 0 or latency_fd >= 0) return; @@ -7277,8 +7317,8 @@ fn writeCapturePpm(g: *Gui, gpa: std.mem.Allocator, pixels: []const u8, width: u var tmp_buf: [4096]u8 = undefined; var final_buf: [4096]u8 = undefined; - const tmp_path = std.fmt.bufPrintSentinel(&tmp_buf, "{s}/latest.ppm.tmp", .{g.capture_dir}, 0) catch return error.CapturePathTooLong; - const final_path = std.fmt.bufPrintSentinel(&final_buf, "{s}/latest.ppm", .{g.capture_dir}, 0) catch return error.CapturePathTooLong; + const tmp_path = std.fmt.bufPrintSentinel(&tmp_buf, "{s}/{s}.ppm.tmp", .{ g.capture_dir, name }, 0) catch return error.CapturePathTooLong; + const final_path = std.fmt.bufPrintSentinel(&final_buf, "{s}/{s}.ppm", .{ g.capture_dir, name }, 0) catch return error.CapturePathTooLong; const fd = libc.open(tmp_path, .{ .ACCMODE = .WRONLY, .CREAT = true, .TRUNC = true }, @as(libc.mode_t, 0o644)); if (fd < 0) return error.CaptureWriteFailed; @@ -7304,128 +7344,308 @@ fn writeCapturePpm(g: *Gui, gpa: std.mem.Allocator, pixels: []const u8, width: u if (libc.rename(tmp_path, final_path) != 0) return error.CaptureWriteFailed; } -fn addCursorBar( - builder: *OverlayBuilder, - x: u16, - y: u16, - bar: bool, - visual_height: f32, - layout: CellLayout, - rgb: [3]u8, -) void { - if (!bar) return; - const previous_ink = builder.ink; - builder.ink = true; - defer builder.ink = previous_ink; - const x0 = layout.x_off + @as(f32, @floatFromInt(x)) * layout.w; - const height = std.math.clamp(visual_height, 1.0, layout.h); - const y0 = layout.y_off + @as(f32, @floatFromInt(y)) * layout.h + - @as(f32, @floatFromInt(taglineBandOffset(y, builder.win_h, @intFromFloat(layout.h), @intFromFloat(height)))); - builder.addRect( - x0, - y0, - x0 + @max(1.0, layout.w / 8.0), - y0 + height, - .{ - .r = @as(f32, @floatFromInt(rgb[0])) / 255.0, - .g = @as(f32, @floatFromInt(rgb[1])) / 255.0, - .b = @as(f32, @floatFromInt(rgb[2])) / 255.0, - .a = 1.0, - }, - ); +/// One flat, hard-edged rectangle of decor, in window pixels: clipped to the +/// window and dropped when empty, as the triangle overlay drew it, and moved +/// by `track` as its pane's cells are. +fn addDecor(g: *Gui, gpa: std.mem.Allocator, x0_in: f32, y0_in: f32, x1_in: f32, y1_in: f32, rgb: [3]u8, alpha: f32, track: ?pardes.animation.Track, win_w: f32, win_h: f32) !void { + const x0 = std.math.clamp(@min(x0_in, x1_in), 0.0, win_w); + const x1 = std.math.clamp(@max(x0_in, x1_in), 0.0, win_w); + const y0 = std.math.clamp(@min(y0_in, y1_in), 0.0, win_h); + const y1 = std.math.clamp(@max(y0_in, y1_in), 0.0, win_h); + if (x1 <= x0 or y1 <= y0) return; + // decor.frag.glsl reads the colour from the ground and the coverage + // from the ink's red. + var instance: CellInstance = .{ + .x0 = (x0 / win_w) * 2.0 - 1.0, + .y0 = 1.0 - (y0 / win_h) * 2.0, + .x1 = (x1 / win_w) * 2.0 - 1.0, + .y1 = 1.0 - (y1 / win_h) * 2.0, + .u0 = 0, + .v0 = 0, + .u1 = 0, + .v1 = 0, + .fr = alpha, + .fg = 0, + .fb = 0, + .br = @as(f32, @floatFromInt(rgb[0])) / 255.0, + .bg = @as(f32, @floatFromInt(rgb[1])) / 255.0, + .bb = @as(f32, @floatFromInt(rgb[2])) / 255.0, + }; + setTransitionFields(&instance, track, fixedCellLayout(g), win_w, win_h, 0); + try g.decor.append(gpa, instance); } -fn buildOverlay( - g: *Gui, - core: ?*const pardes.Pardes, - surface: *const pardes.Surface, - layout: CellLayout, - sw: u32, - sh: u32, - topbar_pane_border_rgb: [3]u8, - tagline_rgb: [3]u8, - transient_on: bool, - debug_on: bool, -) u32 { - if (g.overlay_vertices.len == 0 or sw == 0 or sh == 0) return 0; - const win_w: f32 = @floatFromInt(sw); - const win_h: f32 = @floatFromInt(sh); - var builder = OverlayBuilder{ .vertices = g.overlay_vertices, .win_w = win_w, .win_h = win_h }; - appendWorkspacePet(g, core, surface, &builder); - // The workspace tag grows a row per line, so the border follows its foot. - const top_rows: u16 = if (core) |p| p.topBarHeight() else pardes.TOPBAR_H; - if (topbarPaneBorderHeight(surface, top_rows, g.cell_h, g.tagline_height)) |height| { - const y0: f32 = @floatFromInt(top_rows * g.cell_h - height / 2); - const rgb = topbar_pane_border_rgb; - builder.addRect(0, y0, win_w, y0 + @as(f32, @floatFromInt(height)), .{ - .r = @as(f32, @floatFromInt(rgb[0])) / 255.0, - .g = @as(f32, @floatFromInt(rgb[1])) / 255.0, - .b = @as(f32, @floatFromInt(rgb[2])) / 255.0, - .a = 1.0, - }); +/// The frame's decor, group by group (docs/render-pipeline.md §3.4), all of it +/// read from the regions and the palette: the page's rules and the still +/// panes' rails, rules and grip marks in tier 0, a moving or closing pane's +/// in its track's group, notice rules in tier 4, bar cursors in tier 5. +fn buildDecor(g: *Gui, gpa: std.mem.Allocator, surface: *const pardes.Surface, groups: *Groups, layout: CellLayout, win_w: f32, win_h: f32, cursors_shown: bool) !void { + g.decor.clearRetainingCapacity(); + const chrome = &surface.chrome; + const regions = surface.regionList(); + for (groups.items[0..groups.len], 0..) |*group, index| { + group.decor_start = @intCast(g.decor.items.len); + defer group.decor_count = @as(u32, @intCast(g.decor.items.len)) - group.decor_start; + if (index == 0) { + const top = for (regions) |region| { + if (region.kind == .workspace_tag) break region.rect.h; + } else 0; + // The workspace tag is ruled off from the tags right under it. + const tag_under = for (regions) |region| switch (region.kind) { + .grip, .tag, .column_grip, .column_tag => if (region.rect.y == top) break true, + else => {}, + } else false; + const height = topbarPaneBorderPixels(g.cell_h, g.tagline_height); + if (top != 0 and top < surface.rows and tag_under and height != 0) { + const y0: f32 = @floatFromInt(top * g.cell_h - height / 2); + try addDecor(g, gpa, 0, y0, win_w, y0 + @as(f32, @floatFromInt(height)), chrome.topbar_rule, 1, null, win_w, win_h); + } + // The column bar is ruled off from the panes under it. + for (regions) |bar| { + if (bar.kind != .column_grip) continue; + const y = @as(f32, @floatFromInt(bar.rect.y + bar.rect.h)) * layout.h; + try addDecor(g, gpa, 0, y - 1, win_w, y, chrome.border, 1, null, win_w, win_h); + break; + } + // A tag on the last row runs on through the pixels under the grid. + const grid_bottom = @as(f32, @floatFromInt(surface.rows)) * layout.h; + const tag_last = for (regions) |region| switch (region.kind) { + .grip, .tag, .column_grip, .column_tag, .workspace_tag => if (region.rect.h != 0 and region.rect.y + region.rect.h == surface.rows) break true, + else => {}, + } else false; + if (grid_bottom < win_h and tag_last) try addDecor(g, gpa, 0, grid_bottom, win_w, win_h, chrome.tag_bg, 1, null, win_w, win_h); + } + if (index <= groups.tracks) { + const track = group.track; + // A closing pane is gone: its chrome is the last frame's. + const closing = if (track) |active| active.phase == .closing else false; + const placed = if (closing) surface.previous_regions else regions; + const grid = if (closing) surface.previous_cells else surface.cells; + try paneDecor(g, gpa, placed, groups, index, chrome, layout, surface.cols, surface.rows, win_w, win_h, track); + // A single spine runs down each column, through every tag and body. + if (index == 0) for (regions) |column| { + if (column.kind != .column) continue; + const x = @as(f32, @floatFromInt(column.rect.x)) * layout.w; + const y0 = @as(f32, @floatFromInt(column.rect.y)) * layout.h; + const grid_y1 = @as(f32, @floatFromInt(surface.rows)) * layout.h; + const y1 = if (win_h - grid_y1 < layout.h) @max(grid_y1, win_h) else grid_y1; + if (y1 > y0) try addDecor(g, gpa, x, y0, x + 1, y1, chrome.border, 1, null, win_w, win_h); + }; + try gripDecor(g, gpa, placed, grid, groups, index, layout, surface.cols, surface.rows, win_w, win_h, track); + } + // A notice chip is tagline hung over the body's top rows, so it is + // ruled off from the text beneath it the way a tag is: the same + // colour and thickness along its bottom, running to the window's + // edge when it does, fading up and dissolving with its band. + for (surface.tagLayers()) |*layer| { + if (layer.rows == 0 or layer.kind != .notice or noticeGroup(groups, layer) != index) continue; + const x0 = @as(f32, @floatFromInt(layer.viewport.x)) * layout.w; + const x1 = x0 + @as(f32, @floatFromInt(layer.viewport.w)) * layout.w; + const rule_x1 = if (win_w - x1 < layout.w) @max(x1, win_w) else x1; + const top = @as(f32, @floatFromInt(layer.viewport.y)) * layout.h; + // A band still falling into place is cut at its row's top; its + // rule comes with it, and shows only once it is below that cut. + const rule_y = top + (1 + layer.slide) * layout.h; + if (rule_y - 1 < top) continue; + const track = groups.items[groupAt(groups, layer.viewport.x, layer.viewport.y)].track; + try addDecor(g, gpa, x0, rule_y - 1, rule_x1, rule_y, chrome.border, layer.fade, track, win_w, win_h); + } + if (index == groups.ink and cursors_shown) try cursorDecor(g, gpa, surface, layout, win_w, win_h); } - if (core) |p| if (p.columnBarHeight() > 0) { - const y = @as(f32, @floatFromInt(top_rows + p.columnBarHeight())) * layout.h; - builder.addRect(0, y - 1, win_w, y, overlayRgb(p.chromeTheme().border)); +} + +/// Each pane's rule between its tag and body, and its scroll rail: a page +/// coloured gutter with a thin track and its thumb, running down through the +/// pixels past the last whole row. Only the panes of group `index`. +fn paneDecor(g: *Gui, gpa: std.mem.Allocator, regions: []const pardes.Region, groups: *const Groups, index: usize, chrome: *const pardes.Chrome, layout: CellLayout, cols: u16, rows: u16, win_w: f32, win_h: f32, track: ?pardes.animation.Track) !void { + const page = chrome.page orelse bg_default; + for (regions) |rail| { + if (rail.kind != .rail or rail.rect.h == 0 or groupOf(groups, rail.serial) != index) continue; + const tag = for (regions) |region| { + if (region.kind == .tag and region.owner == rail.owner) break region; + } else continue; + if (@as(u32, tag.rect.x) + tag.rect.w > cols or @as(u32, tag.rect.y) + tag.rect.h > rows or + @as(u32, rail.rect.y) + rail.rect.h > rows) continue; + const x0 = @as(f32, @floatFromInt(rail.rect.x)) * layout.w; + const x1 = @as(f32, @floatFromInt(tag.rect.x + tag.rect.w)) * layout.w; + // Like the band above it, the rule of a pane at the right edge runs + // on through the pixels past the last whole cell. Under a tag on + // top, over one below its body. + const rule_x1 = if (win_w - x1 < layout.w) @max(x1, win_w) else x1; + const tag_bottom = tag.rect.y > rail.rect.y; + const rule_y = @as(f32, @floatFromInt(if (tag_bottom) tag.rect.y else tag.rect.y + tag.rect.h)) * layout.h; + try addDecor(g, gpa, x0, if (tag_bottom) rule_y else rule_y - 1, rule_x1, if (tag_bottom) rule_y + 1 else rule_y, chrome.border, 1, track, win_w, win_h); + + const y0 = @as(f32, @floatFromInt(rail.rect.y)) * layout.h; + const body_end = rail.rect.y + rail.rect.h; + const body_y1 = @as(f32, @floatFromInt(body_end)) * layout.h; + const y1 = if (body_end == rows and win_h - body_y1 < layout.h) @max(body_y1, win_h) else body_y1; + try addDecor(g, gpa, x0, y0, x0 + layout.w, y1, page, 1, track, win_w, win_h); + try addDecor(g, gpa, x0, y0, x0 + @min(layout.w, 2), y1, chrome.scroll_track, 1, track, win_w, win_h); + if (rail.thumb_h != 0) { + const thumb_y0 = @as(f32, @floatFromInt(rail.rect.y + rail.thumb_y)) * layout.h; + const thumb_y1 = if (rail.thumb_y + rail.thumb_h == rail.rect.h) y1 else @as(f32, @floatFromInt(rail.rect.y + rail.thumb_y + rail.thumb_h)) * layout.h; + try addDecor(g, gpa, x0, thumb_y0, x0 + @min(layout.w, @max(2, @floor(layout.w * 0.5))), thumb_y1, chrome.scroll_thumb, 1, track, win_w, win_h); + } + } +} + +/// The two short bars on each row of a grip with no mode glyph there, +/// centered in its anchor. Only the panes of group `index`. +fn gripDecor(g: *Gui, gpa: std.mem.Allocator, regions: []const pardes.Region, cells: []const pardes.Cell, groups: *const Groups, index: usize, layout: CellLayout, cols: u16, rows: u16, win_w: f32, win_h: f32, track: ?pardes.animation.Track) !void { + if (g.tagline_height < 6 or g.tagline_width < 3) return; + for (regions) |grip| { + if (grip.kind != .grip or groupOf(groups, grip.serial) != index) continue; + const x = grip.rect.x; + for (0..grip.rect.h) |line| { + const y = grip.rect.y + @as(u16, @intCast(line)); + if (x >= cols or y >= rows) continue; + const cell = &cells[@as(usize, y) * cols + x]; + if (cell.default or cell.printableAscii() != ' ') continue; + const rgb = switch (cell.style.fg) { + .rgb => |rgb| rgb, + else => continue, + }; + const center_x = (@as(f32, @floatFromInt(x)) + @as(f32, @floatFromInt(config.GUTTER)) / 2) * layout.w + @as(f32, @floatFromInt(anchorInset(g, y, win_h) / 2)); + const center_y = @as(f32, @floatFromInt(y)) * layout.h + @as(f32, @floatFromInt(taglineBandOffset(y, win_h, g.cell_h, g.tagline_height))) + @as(f32, @floatFromInt(g.tagline_height)) / 2; + const half_w = @max(1, @min(3, layout.w - 2)); + try addDecor(g, gpa, @floor(center_x - half_w), @floor(center_y - 2), @floor(center_x + half_w), @floor(center_y - 1), rgb, 1, track, win_w, win_h); + try addDecor(g, gpa, @floor(center_x - half_w), @floor(center_y + 1), @floor(center_x + half_w), @floor(center_y + 2), rgb, 1, track, win_w, win_h); + } + } +} + +test "decor is read from the regions, each pane's in its own group" { + const gpa = std.testing.allocator; + const core = try pardes.Pardes.init(gpa, .{ .cols = 80, .rows = 24 }); + defer core.deinit(); + _ = try core.newShell(1, ""); + try std.testing.expect(pardes.layout.splitColumn(core, 0, 1, false)); + pardes.test_api.sync(core); + const s = try core.render(core.scratch.allocator()); + var g: Gui = undefined; + g.decor = .empty; + defer g.decor.deinit(gpa); + g.cell_w = 10; + g.cell_h = 20; + g.tagline_width = 6; + g.tagline_height = 12; + const layout = fixedCellLayout(&g); + const ndc = struct { + fn x(px: f32) f32 { + return px / 800 * 2 - 1; + } }; - const grid_bottom = @as(f32, @floatFromInt(surface.rows)) * layout.h; - if (grid_bottom < win_h and bottomTaglinePresent(surface)) { - const rgb = tagline_rgb; - builder.addRect(0, grid_bottom, win_w, win_h, .{ - .r = @as(f32, @floatFromInt(rgb[0])) / 255.0, - .g = @as(f32, @floatFromInt(rgb[1])) / 255.0, - .b = @as(f32, @floatFromInt(rgb[2])) / 255.0, - .a = 1.0, - }); + var groups = makeGroups(&.{}, false); + try buildDecor(&g, gpa, s, &groups, layout, 800, 480, true); + // A spine one pixel wide at each column's left edge, down from under the + // workspace tag; a rail two pixels wide at each pane's. + for (core.col_x[0..core.ncol]) |x| { + const left = ndc.x(@as(f32, @floatFromInt(x)) * 10); + const spine = for (g.decor.items) |item| { + if (item.x0 == left and @abs(item.x1 - ndc.x(@as(f32, @floatFromInt(x)) * 10 + 1)) < 0.0001) break item; + } else return error.TestExpectedSpine; + try std.testing.expectApproxEqAbs(@as(f32, 1 - 20.0 / 480.0 * 2), spine.y0, 0.0001); + try std.testing.expectEqual(@as(f32, -1), spine.y1); + const rail = for (g.decor.items) |item| { + if (item.x0 == left and @abs(item.x1 - ndc.x(@as(f32, @floatFromInt(x)) * 10 + 2)) < 0.0001) break item; + } else return error.TestExpectedRail; + try std.testing.expectApproxEqAbs(@as(f32, s.chrome.scroll_track[0]) / 255, rail.br, 0.0001); } - if (transient_on) { - if (core) |p| appendPaneChrome(p, surface, layout, &builder); - appendTagGrips(g, surface, layout, &builder); - if (surface.cursor) |cursor| { - if (cursor.x < surface.cols and cursor.y < surface.rows and bodyLayerAt(surface, cursor.x, cursor.y) == null and tagLayerIn(surface.tagLayers(), cursor.x, cursor.y) == null) { - const cell = surface.cells[@as(usize, cursor.y) * surface.cols + cursor.x]; - const role = cellFontRole(&cell); - const visual_height: f32 = if (role == .tagline) - @floatFromInt(g.tagline_height) - else - layout.h; - const cursor_layout = if (role == .tagline) - taglineLayoutForCell(g, cursor.x) - else - layout; - addCursorBar(&builder, cursor.x, cursor.y, cursor.bar, visual_height, cursor_layout, cursorColor(core, &cell, role)); - } + try std.testing.expectEqual(@as(u32, 0), groups.items[groups.notices].decor_count); + const still = groups.items[0].decor_count; + + // Pane 1 moving: its rule and rail leave tier 0 for its track's group, + // which moves them with it. + const serial = core.panes[1].?.serial; + const moving: pardes.animation.Track = .{ .pane = 1, .serial = serial, .phase = .moving, .effect = .slide, .from = .{ .x = 0, .y = 1, .w = 40, .h = 23 }, .to = .{ .x = 40, .y = 1, .w = 40, .h = 23 } }; + groups = makeGroups(&.{moving}, true); + try buildDecor(&g, gpa, s, &groups, layout, 800, 480, groups.tracks == 0); + const tracked = groups.items[1]; + try std.testing.expect(tracked.decor_count >= 4); + try std.testing.expectEqual(still, groups.items[0].decor_count + tracked.decor_count); + for (g.decor.items[tracked.decor_start..][0..tracked.decor_count]) |item| + try std.testing.expectEqual(@as(u32, @intFromEnum(pardes.animation.Transition.slide)), item.effect); + // Cursors stand still while panes move. + try std.testing.expectEqual(@as(u32, 0), groups.items[groups.ink].decor_count); +} + +const CursorBox = Post.Frame.Cursor; +const max_cursors = 1 + pardes.MAX_PANES + pardes.MAX_TAG_LAYERS; + +/// Every cursor on the frame where it is drawn, in window pixels: the grid's +/// where no layer has its cell, and each layer's at that layer's pitch. A bar +/// is an eighth of its cell wide, a block the whole cell. +fn cursorBoxes(g: *const Gui, surface: *const pardes.Surface, layout: CellLayout, win_h: f32, out: *[max_cursors]CursorBox) usize { + const chrome = &surface.chrome; + const page = chrome.page orelse bg_default; + var n: usize = 0; + if (surface.cursor) |cursor| { + if (cursor.x < surface.cols and cursor.y < surface.rows and bodyLayerAt(surface, cursor.x, cursor.y) == null and tagLayerIn(surface.tagLayers(), cursor.x, cursor.y) == null) { + const cell = &surface.cells[@as(usize, cursor.y) * surface.cols + cursor.x]; + const role = cellFontRole(cell); + const width: f32 = if (role == .tagline) @floatFromInt(g.tagline_width) else layout.w; + const height = std.math.clamp(if (role == .tagline) @as(f32, @floatFromInt(g.tagline_height)) else layout.h, 1.0, layout.h); + const x0 = @as(f32, @floatFromInt(cursor.x)) * layout.w; + const y0 = @as(f32, @floatFromInt(cursor.y)) * layout.h + @as(f32, @floatFromInt(taglineBandOffset(cursor.y, win_h, @intFromFloat(layout.h), @intFromFloat(height)))); + out[n] = .{ .x0 = x0, .y0 = y0, .x1 = x0 + if (cursor.bar) @max(1.0, width / 8.0) else width, .y1 = y0 + height, .rgb = cursorColor(chrome, cell, role), .text = page, .bar = cursor.bar }; + n += 1; } } - if (transient_on) for (surface.bodyLayers()) |*layer| { + for (surface.bodyLayers()) |*layer| { if (layer.rows == 0) continue; + const cursor = layer.cursor orelse continue; + if (cursor.y >= layer.rows or cursor.x >= layer.cols) continue; const left = @as(f32, @floatFromInt(layer.viewport.x)) * layout.w; const bottom = @as(f32, @floatFromInt(layer.viewport.y + layer.viewport.h)) * layout.h; - if (layer.cursor) |cursor| { - if (!cursor.bar or cursor.y >= layer.rows or cursor.x >= layer.cols) continue; - const top = layer.rowTop(cursor.y, layout.h, @floatFromInt(g.tagline_height)); - if (top >= bottom) continue; - const height = layer.rowHeight(cursor.y, layout.h, @floatFromInt(g.tagline_height)); - const role: pardes.FontRole = if (cursor.y < layer.context_rows) .tagline else .body; - const width: f32 = if (role == .tagline) @floatFromInt(g.tagline_width) else layout.w; - const x = left + @as(f32, @floatFromInt(cursor.x)) * width; - const cell = &layer.cells[@as(usize, cursor.y) * layer.cols + cursor.x]; - builder.addRect(x, top, x + @max(1, width / 8), @min(bottom, top + height), overlayRgb(cursorColor(core, cell, role))); - } - }; - if (transient_on) for (surface.tagLayers()) |*layer| { - if (layer.cols == 0) continue; + const top = layer.rowTop(cursor.y, layout.h, @floatFromInt(g.tagline_height)); + if (top >= bottom) continue; + const height = layer.rowHeight(cursor.y, layout.h, @floatFromInt(g.tagline_height)); + const role: pardes.FontRole = if (cursor.y < layer.context_rows) .tagline else .body; + const width: f32 = if (role == .tagline) @floatFromInt(g.tagline_width) else layout.w; + const x = left + @as(f32, @floatFromInt(cursor.x)) * width; + const cell = &layer.cells[@as(usize, cursor.y) * layer.cols + cursor.x]; + out[n] = .{ .x0 = x, .y0 = top, .x1 = x + if (cursor.bar) @max(1, width / 8) else width, .y1 = @min(bottom, top + height), .rgb = cursorColor(chrome, cell, role), .text = page, .bar = cursor.bar }; + n += 1; + } + for (surface.tagLayers()) |*layer| { + if (layer.rows == 0) continue; const cursor = layer.cursor orelse continue; - if (!cursor.bar or cursor.col >= layer.cols) continue; + if (cursor.x >= layer.cols or cursor.y >= layer.rows) continue; const width: f32 = @floatFromInt(g.tagline_width); const left = @as(f32, @floatFromInt(layer.viewport.x)) * layout.w; const right = left + @as(f32, @floatFromInt(layer.viewport.w)) * layout.w; - const x = left + @as(f32, @floatFromInt(cursor.col)) * width; + const x = left + @as(f32, @floatFromInt(cursor.x)) * width; if (x >= right) continue; - const top = @as(f32, @floatFromInt(layer.viewport.y)) * layout.h + @as(f32, @floatFromInt(taglineBandOffset(layer.viewport.y, builder.win_h, g.cell_h, g.tagline_height))); - builder.addRect(x, top, @min(right, x + @max(1, width / 8)), top + @as(f32, @floatFromInt(g.tagline_height)), overlayRgb(cursorColor(core, &layer.cells[cursor.col], .tagline))); - }; - if (transient_on) appendTouchOverlay(g, &builder, debug_on); + const y = layer.viewport.y + cursor.y; + const top = @as(f32, @floatFromInt(y)) * layout.h + @as(f32, @floatFromInt(taglineBandOffset(y, win_h, g.cell_h, g.tagline_height))); + out[n] = .{ .x0 = x, .y0 = top, .x1 = @min(right, x + if (cursor.bar) @max(1, width / 8) else width), .y1 = top + @as(f32, @floatFromInt(g.tagline_height)), .rgb = cursorColor(chrome, &layer.cells[@as(usize, cursor.y) * layer.cols + cursor.x], .tagline), .text = page, .bar = cursor.bar }; + n += 1; + } + return n; +} + +/// The bar cursors as decor; a block cursor is its cell's own colours. +fn cursorDecor(g: *Gui, gpa: std.mem.Allocator, surface: *const pardes.Surface, layout: CellLayout, win_w: f32, win_h: f32) !void { + var boxes: [max_cursors]CursorBox = undefined; + for (boxes[0..cursorBoxes(g, surface, layout, win_h, &boxes)]) |box| + if (box.bar) try addDecor(g, gpa, box.x0, box.y0, box.x1, box.y1, box.rgb, 1, null, win_w, win_h); +} + +/// The triangle overlay: the workspace pet and the touch debug view, over +/// everything. +fn buildOverlay( + g: *Gui, + core: ?*const pardes.Pardes, + surface: *const pardes.Surface, + sw: u32, + sh: u32, + debug_on: bool, +) u32 { + if (g.overlay_vertices.len == 0 or sw == 0 or sh == 0) return 0; + var builder = OverlayBuilder{ .vertices = g.overlay_vertices, .win_w = @floatFromInt(sw), .win_h = @floatFromInt(sh) }; + appendWorkspacePet(g, core, surface, &builder); + appendTouchOverlay(g, &builder, debug_on); return @intCast(builder.len); } @@ -7500,33 +7720,11 @@ test "pet overlay stays beyond workspace text and vanishes while its tag is edit try std.testing.expectEqual(@as(usize, 0), builder.len); } -fn cursorColor(core: ?*const pardes.Pardes, cell: *const pardes.Cell, role: pardes.FontRole) [3]u8 { - if (core) |p| return if (role == .tagline) switch (cell.style.fg) { - .rgb => |rgb| rgb, - else => p.chromeTheme().tag_fg, - } else p.theme().fg orelse fg_default; - return switch (cell.style.fg) { +fn cursorColor(chrome: *const pardes.Chrome, cell: *const pardes.Cell, role: pardes.FontRole) [3]u8 { + return if (role == .tagline) switch (cell.style.fg) { .rgb => |rgb| rgb, - .index => |index| palColor(index), - // Detached frames carry explicit page backgrounds but blank cells need - // not carry foreground ink. Keep their insertion caret visible too. - .default => switch (cell.style.bg) { - .rgb => |rgb| if ((@as(u16, rgb[0]) * 3 + @as(u16, rgb[1]) * 6 + rgb[2]) / 10 > 140) - .{ 32, 32, 32 } - else - fg_default, - else => fg_default, - }, - }; -} - -test "detached insertion caret contrasts with blank light and dark pages" { - var cell: pardes.Cell = .{ .default = false, .style = .{ .bg = .{ .rgb = .{ 248, 246, 237 } } } }; - try std.testing.expectEqual([3]u8{ 32, 32, 32 }, cursorColor(null, &cell, .body)); - cell.style.bg = .{ .rgb = .{ 24, 28, 32 } }; - try std.testing.expectEqual(fg_default, cursorColor(null, &cell, .body)); - cell.style.fg = .{ .rgb = .{ 122, 188, 160 } }; - try std.testing.expectEqual([3]u8{ 122, 188, 160 }, cursorColor(null, &cell, .body)); + else => chrome.tag_fg, + } else chrome.fg orelse fg_default; } fn overlayRgb(rgb: [3]u8) OverlayColor { @@ -7538,181 +7736,6 @@ fn overlayRgb(rgb: [3]u8) OverlayColor { }; } -fn cellBackgroundIs(cell: *const pardes.Cell, rgb: [3]u8) bool { - return !cell.default and switch (cell.style.bg) { - .rgb => |bg| std.mem.eql(u8, &bg, &rgb), - else => false, - }; -} - -// The canonical surface still owns scrollbar positions and hit targets. Only -// their pixel ink is inset here; no layout, selection or mouse coordinates move. -fn appendPaneChrome( - core: *const pardes.Pardes, - surface: *const pardes.Surface, - layout: CellLayout, - builder: *OverlayBuilder, -) void { - const chrome = core.chromeTheme(); - const page = overlayRgb(core.theme().bg orelse bg_default); - for (core.panes, core.rects) |slot, r| { - const pane = slot orelse continue; - if (r.w <= config.GUTTER or r.h <= pane.tag_rows) continue; - if (@as(u32, r.x) + r.w > surface.cols or @as(u32, r.y) + r.h > surface.rows) continue; - const tag_y = core.tagTop(pane, r); - const body_y = core.bodyTop(pane, r); - const body_end = body_y + (r.h -| pane.tag_rows); - const x0 = @as(f32, @floatFromInt(r.x)) * layout.w; - const x1 = x0 + @as(f32, @floatFromInt(r.w)) * layout.w; - const tag_cells = surface.cells[@as(usize, tag_y) * surface.cols + r.x + pardes.TAG_TEXT_INSET ..][0 .. r.w - pardes.TAG_TEXT_INSET]; - const tag_visible = for (tag_cells) |*cell| { - if (cellFontRole(cell) != .tagline) break false; - } else true; - if (tag_visible) { - const rule_y = @as(f32, @floatFromInt(tag_y + (if (core.settings.tag_bottom) 0 else pane.tag_rows))) * layout.h; - // Like the band above it, the rule of a pane at the right edge - // runs on through the pixels past the last whole cell. - const rule_x1 = if (builder.win_w - x1 < layout.w) @max(x1, builder.win_w) else x1; - builder.addRect(x0, rule_y - @as(f32, if (core.settings.tag_bottom) 0 else 1), rule_x1, rule_y + @as(f32, if (core.settings.tag_bottom) 1 else 0), overlayRgb(chrome.border)); - } - - // Do not paint over resize previews or debug text occupying the rail. - var thumb_start: ?u16 = null; - var thumb_end: u16 = body_y; - var row = body_y; - while (row < body_end) : (row += 1) { - const cell = &surface.cells[@as(usize, row) * surface.cols + r.x]; - if (cell.printableAscii() != ' ') break; - if (cellBackgroundIs(cell, chrome.scroll_thumb)) { - if (thumb_start == null) thumb_start = row; - thumb_end = row + 1; - } else if (!cellBackgroundIs(cell, chrome.scroll_track)) break; - } - if (row != body_end) continue; - const y0 = @as(f32, @floatFromInt(body_y)) * layout.h; - const body_y1 = @as(f32, @floatFromInt(body_end)) * layout.h; - const y1 = if (body_end == surface.rows and builder.win_h - body_y1 < layout.h) @max(body_y1, builder.win_h) else body_y1; - builder.addRect(x0, y0, x0 + layout.w, y1, page); - appendSquareRail(builder, x0, y0, y1, layout.w, false, overlayRgb(chrome.scroll_track)); - if (thumb_start) |first| { - const thumb_y0 = @as(f32, @floatFromInt(first)) * layout.h; - const thumb_y1 = if (thumb_end == body_end) y1 else @as(f32, @floatFromInt(thumb_end)) * layout.h; - appendSquareRail(builder, x0, thumb_y0, thumb_y1, layout.w, true, overlayRgb(chrome.scroll_thumb)); - } - } - // A notice chip is tagline hung over the body's top rows, so it is ruled - // off from the text beneath it the way a tagline is: the same colour and - // thickness along its bottom, running to the window edge when it does. - for (surface.tagLayers()) |*layer| { - if (layer.cols == 0 or layer.kind != .notice) continue; - const x0 = @as(f32, @floatFromInt(layer.viewport.x)) * layout.w; - const x1 = x0 + @as(f32, @floatFromInt(layer.viewport.w)) * layout.w; - const rule_x1 = if (builder.win_w - x1 < layout.w) @max(x1, builder.win_w) else x1; - const top = @as(f32, @floatFromInt(layer.viewport.y)) * layout.h; - // A band still falling into place is cut at its row's top; its rule - // comes with it, and shows only once it is below that cut. - const rule_y = top + (1 + layer.slide) * layout.h; - if (rule_y - 1 < top) continue; - // ...and fades up and dissolves with it rather than standing alone. - var rule = overlayRgb(chrome.border); - rule.a = layer.fade; - builder.addRect(x0, rule_y - 1, rule_x1, rule_y, rule); - } - appendColumnSpines(core, surface.rows, layout, builder); -} - -// Tag handles use the canonical physical cells, including detached frames. -// Their tag text begins at the layer viewport and may use a narrower font. -fn appendTagGrips(g: *const Gui, surface: *const pardes.Surface, layout: CellLayout, builder: *OverlayBuilder) void { - if (g.tagline_height < 6 or g.tagline_width < 3) return; - for (surface.tagLayers()) |layer| { - if (layer.cols == 0 or layer.kind != .pane or layer.viewport.x < pardes.TAG_TEXT_INSET) continue; - const x = layer.viewport.x - pardes.TAG_TEXT_INSET; - const y = layer.viewport.y; - if (x >= surface.cols or y >= surface.rows) continue; - const cell = &surface.cells[@as(usize, y) * surface.cols + x]; - if (cell.default or cell.printableAscii() != ' ') continue; - const rgb = switch (cell.style.fg) { - .rgb => |rgb| rgb, - else => continue, - }; - const center_x = (@as(f32, @floatFromInt(x)) + @as(f32, @floatFromInt(config.GUTTER)) / 2) * layout.w + @as(f32, @floatFromInt(anchorInset(g, y, builder.win_h) / 2)); - const center_y = @as(f32, @floatFromInt(y)) * layout.h + @as(f32, @floatFromInt(taglineBandOffset(y, builder.win_h, g.cell_h, g.tagline_height))) + @as(f32, @floatFromInt(g.tagline_height)) / 2; - const half_w = @max(1, @min(3, layout.w - 2)); - builder.addRect(@floor(center_x - half_w), @floor(center_y - 2), @floor(center_x + half_w), @floor(center_y - 1), overlayRgb(rgb)); - builder.addRect(@floor(center_x - half_w), @floor(center_y + 1), @floor(center_x + half_w), @floor(center_y + 2), overlayRgb(rgb)); - } -} - -test "column grips stay unmarked while pane marks retain physical centering" { - var g: Gui = undefined; - g.tagline_height = 12; - g.tagline_width = 6; - g.cell_h = 20; - var cells: [80]pardes.Cell = @splat(.{ .default = false, .style = .{ .fg = .{ .rgb = .{ 100, 120, 140 } } } }); - var surface: pardes.Surface = .{ .cols = 20, .rows = 4, .cells = &cells }; - surface.tag_layers[0] = .{ .kind = .column, .viewport = .{ .x = 8, .y = 1, .w = 13, .h = 1 }, .cols = 20 }; - surface.tag_layers[1] = .{ .kind = .pane, .viewport = .{ .x = 8, .y = 3, .w = 13, .h = 1 }, .cols = 20 }; - var vertices: [24]OverlayVertex = undefined; - var builder: OverlayBuilder = .{ .vertices = &vertices, .win_w = 200, .win_h = 80 }; - appendTagGrips(&g, &surface, .{ .w = 10, .h = 20, .x_off = 0, .y_off = 0 }, &builder); - try std.testing.expectEqual(@as(usize, 12), builder.len); - // Centered in the anchor, whose left edge is inset by the band's offset - // (8 px on this last row): the mark moves right by half of it. - try std.testing.expectApproxEqAbs(@as(f32, 61.0 / 200.0 * 2.0 - 1.0), vertices[0].x, 0.0001); -} - -fn appendSquareRail(builder: *OverlayBuilder, x: f32, y0: f32, y1: f32, cell_w: f32, thumb: bool, color: OverlayColor) void { - const width = @min(cell_w, if (thumb) @max(2, @floor(cell_w * 0.5)) else 2); - builder.addRect(x, y0, x + width, y1, color); -} - -fn appendColumnSpines(core: *const pardes.Pardes, rows: u16, layout: CellLayout, builder: *OverlayBuilder) void { - const y0 = @as(f32, @floatFromInt(core.topBarHeight())) * layout.h; - const grid_y1 = @as(f32, @floatFromInt(rows)) * layout.h; - // Down through the pixels past the last whole row, as tags run right. - const y1 = if (builder.win_h - grid_y1 < layout.h) @max(grid_y1, builder.win_h) else grid_y1; - if (y1 <= y0) return; - // A single boundary spans all panes, including their tags. Its left edge - // agrees with the square scroll markers and existing move-box hit area. - for (core.col_x[0..core.ncol], core.col_w[0..core.ncol]) |col, width| { - if (width == 0) continue; - const x = @as(f32, @floatFromInt(col)) * layout.w; - builder.addRect(x, y0, x + 1, y1, overlayRgb(core.chromeTheme().border)); - } -} - -test "square scroll markers share the column edge and have no rounded end inset" { - var vertices: [12]OverlayVertex = undefined; - var builder: OverlayBuilder = .{ .vertices = &vertices, .win_w = 800, .win_h = 480 }; - appendSquareRail(&builder, 400, 40, 480, 10, false, overlayRgb(.{ 40, 40, 40 })); - appendSquareRail(&builder, 400, 80, 160, 10, true, overlayRgb(.{ 100, 100, 100 })); - try std.testing.expectEqual(@as(usize, 12), builder.len); - try std.testing.expectEqual(vertices[0].x, vertices[6].x); - try std.testing.expectApproxEqAbs(@as(f32, 1 - 80.0 / 480.0 * 2), vertices[6].y, 0.0001); - try std.testing.expectApproxEqAbs(@as(f32, 1 - 160.0 / 480.0 * 2), vertices[8].y, 0.0001); - try std.testing.expectApproxEqAbs(@as(f32, 5.0 / 800.0 * 2), vertices[7].x - vertices[6].x, 0.0001); -} - -test "column spines remain continuous across every pane tag and body" { - const core = try pardes.Pardes.init(std.testing.allocator, .{ .cols = 80, .rows = 24 }); - defer core.deinit(); - _ = try core.newShell(1, ""); - try std.testing.expect(pardes.layout.splitColumn(core, 0, 1, false)); - pardes.test_api.sync(core); - var vertices: [12]OverlayVertex = undefined; - var builder: OverlayBuilder = .{ .vertices = &vertices, .win_w = 800, .win_h = 480 }; - appendColumnSpines(core, 24, .{ .w = 10, .h = 20, .x_off = 0, .y_off = 0 }, &builder); - try std.testing.expectEqual(@as(usize, 12), builder.len); - for (0..2) |col| { - const first = vertices[col * 6]; - const bottom = vertices[col * 6 + 2]; - try std.testing.expectApproxEqAbs(@as(f32, 1 - 20.0 / 480.0 * 2), first.y, 0.0001); - try std.testing.expectEqual(@as(f32, -1), bottom.y); - try std.testing.expectApproxEqAbs(@as(f32, @floatFromInt(core.col_x[col])) * 10.0 / 800.0 * 2 - 1, first.x, 0.0001); - } -} - fn appendTouchOverlay(g: *Gui, builder: *OverlayBuilder, debug_on: bool) void { if (!debug_on) { g.touch.click_flash_frames = 0; @@ -8025,7 +8048,7 @@ test "compact body layer rendering fills recovered rows and clips the final glyp g.tagline_height = 12; g.space_slot = .{ .u = 0, .v = 0 }; var cells: [24]pardes.Cell = @splat(.{}); - var layer: pardes.BodyLayer = .{ + var layer: pardes.Layer = .{ .viewport = .{ .x = 3, .y = 2, .w = 2, .h = 5 }, .cols = 2, .rows = 12, @@ -8065,7 +8088,7 @@ test "compact tag layers fill available width and clip at their physical edge" { g.tagline_height = 12; g.space_slot = .{ .u = 0, .v = 0 }; var cells: [6]pardes.Cell = @splat(.{}); - const layer: pardes.TagLayer = .{ .kind = .pane, .id = 0, .serial = 7, .viewport = .{ .x = 2, .y = 3, .w = 3, .h = 1 }, .cols = 6, .cells = &cells, .bg = .{ 20, 30, 40 } }; + const layer: pardes.Layer = .{ .kind = .pane, .id = 0, .serial = 7, .viewport = .{ .x = 2, .y = 3, .w = 3, .h = 1 }, .cols = 6, .rows = 1, .cells = &cells, .bg = .{ 20, 30, 40 } }; var instances: [8]CellInstance = undefined; var next: u32 = 0; emitTagLayer(&g, &instances, &next, &layer, 100, 100, null, Ground.opaqueRgb(bg_default), false, false); diff --git a/src/host_io.zig b/src/host_io.zig index 0f6fd87e..a019e15d 100644 --- a/src/host_io.zig +++ b/src/host_io.zig @@ -12,6 +12,9 @@ pub const Host = struct { pub const VTable = struct { wait_input: ?*const fn (ctx: ?*anyopaque, timeout_ms: u32) void = null, + /// The shell's monotonic clock in ns: the only time the core sees. + /// Without one, core animation moves only by `.tick` events. + now: ?*const fn (ctx: ?*anyopaque) u64 = null, present: ?*const fn (ctx: ?*anyopaque, surface: *const pardes.Surface) void = null, post_present: ?*const fn (ctx: ?*anyopaque) void = null, poll_frame: ?*const fn (ctx: ?*anyopaque) void = null, @@ -39,6 +42,20 @@ pub const Host = struct { }; }; +/// The shells' monotonic clock in ns, the one `Host.now` answers with. +/// PARDES_TEST_CLOCK makes a shell answer a virtual clock instead, moved +/// only when a timed wait runs out -- straight to the core's next wake -- so +/// the snapshot harness sees the same frames whatever the machine's load. +pub fn monotonicNs() u64 { + var ts: libc.timespec = undefined; + if (libc.clock_gettime(.MONOTONIC, &ts) != 0) return 0; + return @as(u64, @intCast(ts.sec)) * std.time.ns_per_s + @as(u64, @intCast(ts.nsec)); +} + +pub fn testClock() ?u64 { + return if (libc.getenv("PARDES_TEST_CLOCK")) |v| (if (std.mem.span(v).len != 0) 0 else null) else null; +} + pub const Fallback = struct { pub const dump_path = "pardes.dump.zon"; @@ -743,8 +760,13 @@ pub const Shell = struct { return .{ .path = path, .argv = .{ path, marks[0], marks[1], null } }; } - fn find(bin: []const u8, buf: *[std.fs.max_path_bytes]u8) ?[*:0]const u8 { + /// A shell by its path or its name in the usual directories, or null. + /// A path may be under a mount this editor serves: the turn goes out + /// with the lookups (pardes.Turn.yield). + pub fn find(bin: []const u8, buf: *[std.fs.max_path_bytes]u8) ?[*:0]const u8 { if (bin.len == 0 or bin.len + 1 > buf.len) return null; + pardes.turn.yield(); + defer pardes.turn.back(); if (std.mem.indexOfScalar(u8, bin, '/') != null) { @memcpy(buf[0..bin.len], bin); buf[bin.len] = 0; @@ -975,14 +997,22 @@ pub fn forkShell( if (stat.kind != .directory) return error.NotDir; break :dir path; }; - // The turn was given up for the stat: a 9P client may have closed the - // pane, and another taken its slot, whose command this is not. - if (core) |c| if ((if (c.panes[pane]) |pn| pn.serial else 0) != serial) return error.PaneGone; var master: c_int = -1; var path_buf: [std.fs.max_path_bytes]u8 = undefined; - // A terminal opened on a shell of its own (`Tty fish`) runs that one. - const own = if (core) |c| if (c.panes[pane]) |pn| pn.shell else null else null; + // A terminal opened on a shell of its own (`Tty fish`) runs that one, + // copied: looking it up gives the turn up, and the pane may go. + var own_buf: [256]u8 = undefined; + var own: ?[]const u8 = null; + if (core) |c| if (c.panes[pane]) |pn| if (pn.shell) |name| { + const n = @min(name.len, own_buf.len); + @memcpy(own_buf[0..n], name[0..n]); + own = own_buf[0..n]; + }; var spawn = Shell.resolve(own orelse bin, &path_buf, prompt_rcs); + // The turn was given up for the stat and the lookup: a 9P client may + // have closed the pane, and another taken its slot, whose command this + // is not. + if (core) |c| if ((if (c.panes[pane]) |pn| pn.serial else 0) != serial) return error.PaneGone; // A command pane's child is the shell running its one line, which has // no prompt to mark (exec.zig runCommand). const one_line = if (core) |c| if (c.panes[pane]) |pn| pn.command else null else null; @@ -1413,12 +1443,6 @@ fn watchChild(pid: libc.pid_t) void { _ = libc.nanosleep(&ts, null); } wakeForExit(); - // Once more a little later: a job the command left holding its pty - // may keep its end of file from ever coming, and the host tells the - // exit then (`CommandWatch.due`). - const ts: libc.timespec = .{ .sec = 0, .nsec = (CommandWatch.grace_ms + 10) * std.time.ns_per_ms }; - _ = libc.nanosleep(&ts, null); - wakeForExit(); } fn wakeForExit() void { @@ -1427,33 +1451,85 @@ fn wakeForExit() void { if (exit_wake) |wake| wake.f(wake.ctx); } -/// Where a host's command pane is between its child's exit and its pty's -/// end of file. The exit is told once the output before it has been read, -/// at end of file -- the exit is often seen first, with output still in -/// the pty -- or after `grace_ms` without one, a job the command left in -/// the background holding the pty. +/// Where a host's command pane is between its child's exit and the end of +/// its output. The exit is told once the output before it is in: at the +/// pty's end of file; or, when something else still holds the pty (a job +/// the command left in the background), once nothing is waiting to be read +/// -- checked when the exit is seen and again after each chunk of output, +/// with no timer to miss. acme's waitthread tells an exit when it is +/// reaped (acme.c:587-700); a terminal also has output in flight. pub const CommandWatch = struct { - pub const grace_ms = 50; watched: bool = false, + /// The master, to ask whether output is still waiting. + fd: c_int = -1, eof: bool = false, exited: bool = false, told: bool = false, status: ?u8 = null, - at: i64 = 0, - - /// The child is reaped, with this status. - pub fn exit(w: *CommandWatch, status: ?u8) void { - w.exited = true; - w.status = status; - w.at = nowMs(); - } /// Whether the exit is to be told now. pub fn due(w: *const CommandWatch) bool { - return w.exited and !w.told and (w.eof or nowMs() - w.at >= grace_ms); + if (!w.exited or w.told) return false; + if (w.eof) return true; + var pfd = [1]libc.pollfd{.{ .fd = w.fd, .events = libc.POLL.IN, .revents = 0 }}; + if (libc.poll(&pfd, 1, 0) < 0) return true; + // Every holder of its terminal gone: the end of file comes, after + // the rest of the output. + if (pfd[0].revents & libc.POLL.HUP != 0) return false; + return pfd[0].revents & libc.POLL.IN == 0; } }; +/// A host's pty slot, whichever way it keeps it: an optional, or one whose +/// `fd` is -1 when empty. +fn SlotPty(comptime S: type) type { + return switch (@typeInfo(S)) { + .optional => |o| *o.child, + else => *S, + }; +} + +fn slotPty(slot: anytype) ?SlotPty(@TypeOf(slot.*)) { + return switch (@typeInfo(@TypeOf(slot.*))) { + .optional => if (slot.*) |*pt| pt else null, + else => if (slot.fd < 0) null else slot, + }; +} + +/// Each watched child that exited: reaped, and the core told once its +/// output is in, its pty closed (`close(ctx, id)`) if its end of file came +/// first. Every host runs this after an exit's wake and after each chunk +/// of a command's output; `ptys` is its slot array, each slot with a `pid` +/// and a `cmd`. +pub fn takeExits(core: *pardes.Pardes, ptys: anytype, ctx: anytype, comptime close: anytype) void { + while (takeExited()) |pid| for (ptys) |*slot| { + const pt = slotPty(slot) orelse continue; + if (!pt.cmd.watched or pt.pid != pid or pt.cmd.exited) continue; + pt.cmd.status = (reapExited(pid) orelse break).status; + pt.cmd.exited = true; + pt.pid = 0; // reaped: no signal or retire may reach whoever gets it next + break; + }; + for (ptys, 0..) |*slot, id| { + const pt = slotPty(slot) orelse continue; + if (!pt.cmd.watched or !pt.cmd.due()) continue; + pt.cmd.told = true; + const eof = pt.cmd.eof; + core.update(.{ .exited = .{ .pane = @intCast(id), .status = pt.cmd.status } }); + if (eof) close(ctx, id); + } +} + +/// A watched command's pty reached end of file: the core hears its output +/// is over; the pty is closed now if its exit was told, else when it is. +pub fn commandEof(core: *pardes.Pardes, ptys: anytype, id: usize, ctx: anytype, comptime close: anytype) void { + const pt = slotPty(&ptys[id]) orelse return; + pt.cmd.eof = true; + core.update(.{ .eof = .{ .pane = @intCast(id) } }); + if (pt.cmd.told) return close(ctx, id); + takeExits(core, ptys, ctx, close); +} + /// Reaps `pid` if it has exited: its status (null: unknown, or not ours /// to read), or null when it is still running -- a pid a watcher reported /// may since have been reaped by another and taken by a new child. diff --git a/src/image.zig b/src/image.zig index 09f049ca..071a2e2a 100644 --- a/src/image.zig +++ b/src/image.zig @@ -941,6 +941,7 @@ fn ensureGrid(p: *pardes.Pardes, state: *State, cols: u16, rows: u16) void { pub fn draw( p: *pardes.Pardes, + s: *pardes.Surface, state: *State, pane_id: u8, serial: u32, @@ -982,7 +983,7 @@ pub fn draw( }; const sx = x + @as(u16, @intCast(offx + cx)); const sy = y + @as(u16, @intCast(offy + cy)); - if (sx < p.surface.cols and sy < p.surface.rows) - p.surface.set(sx, sy, cell.glyph[0..cell.glyph_len], .{ .fg = fg, .bg = bg }); + if (sx < s.cols and sy < s.rows) + s.set(sx, sy, cell.glyph[0..cell.glyph_len], .{ .fg = fg, .bg = bg }); }; } diff --git a/src/layout.zig b/src/layout.zig index be8bad67..f0e6fd16 100644 --- a/src/layout.zig +++ b/src/layout.zig @@ -4,666 +4,16 @@ const tagline = @import("tagline.zig"); const dump = @import("dump.zig"); const config = @import("config.zig"); const panes = @import("panes.zig"); +const animation = @import("animation.zig"); +const Box = animation.Box; const Pardes = pardes.Pardes; const Pane = pardes.Pane; pub const Rect = struct { x: u16 = 0, y: u16 = 0, w: u16 = 0, h: u16 = 0 }; -pub const Snapshot = struct { serial: u32, box: Box }; const MAX_COLS = pardes.MAX_COLS; const MAX_PANES = pardes.MAX_PANES; const BOX_H = pardes.BOX_H; -pub const Presentation = struct { - // Only acknowledged draws advance shown geometry; committed and submitted may be ahead. - committed: [MAX_PANES]?Snapshot = @splat(null), - initialized: bool = false, - enabled: bool = false, - snap_once: bool = false, - tracks: [MAX_PANES]?Track = @splat(null), - closing: [MAX_PANES]Track = undefined, - closing_len: usize = 0, - submitted: [MAX_PANES]?Snapshot = @splat(null), - submitted_ready: bool = false, - shown: [MAX_PANES]?Snapshot = @splat(null), - shown_tracks: [MAX_PANES]?Track = @splat(null), - shown_closing: [MAX_PANES]Track = undefined, - shown_closing_len: usize = 0, - acknowledged: bool = false, - pending: bool = false, - previous_cells: []pardes.Cell = &.{}, - previous_body_layers: [MAX_PANES]pardes.BodyLayer = @splat(.{}), - previous_tag_layers: [pardes.MAX_TAG_LAYERS]pardes.TagLayer = @splat(.{}), - previous_cols: u16 = 0, - previous_rows: u16 = 0, - previous_valid: bool = false, - previous_layout: [MAX_PANES]?Snapshot = @splat(null), - diffs: []pardes.PanelCellDiff = &.{}, - diff_state: enum { none, requested, ready } = .none, - - pub const CellPosition = struct { col: u16, row: u16 }; - - pub fn deinit(self: *Presentation, gpa: std.mem.Allocator) void { - if (self.previous_cells.len > 0) gpa.free(self.previous_cells); - for (&self.previous_body_layers) |*layer| gpa.free(layer.cells); - for (&self.previous_tag_layers) |*layer| gpa.free(layer.cells); - if (self.diffs.len > 0) gpa.free(self.diffs); - } - - pub fn sync(self: *Presentation, p: *Pardes) void { - const initializing = !self.initialized or !self.enabled; - if (initializing or self.snap_once) { - const had_layout = self.initialized; - self.committed = @splat(null); - self.tracks = @splat(null); - self.closing_len = 0; - self.diff_state = .none; - if (initializing) { - self.shown_tracks = @splat(null); - self.shown_closing_len = 0; - } - for (p.panes, 0..) |slot, id| { - const pane = slot orelse continue; - self.committed[id] = .{ .serial = pane.serial, .box = panelBox(p.rects[id]) }; - } - self.initialized = true; - self.snap_once = false; - if (had_layout and self.acknowledged) - self.pending = true; - return; - } - - const effect = p.settings.panel_transition; - if (effect.needsPreviousGrid() and self.diff_state != .none) { - var second_change = false; - for (p.panes, self.committed, 0..) |slot, snapshot, id| { - const pane = slot orelse { - second_change = second_change or snapshot != null; - continue; - }; - const target = panelBox(p.rects[id]); - second_change = second_change or snapshot == null or - snapshot.?.serial != pane.serial or !snapshot.?.box.eql(target); - } - if (second_change) { - p.abandonPanelAnimations(); - self.committed = @splat(null); - for (p.panes, 0..) |slot, id| { - const pane = slot orelse continue; - self.committed[id] = .{ .serial = pane.serial, .box = panelBox(p.rects[id]) }; - } - return; - } - } - var changed = false; - var animated_change = false; - for (p.panes, 0..) |slot, id| { - const pane = slot orelse { - if (self.committed[id]) |old| { - changed = true; - if (effect.lifecycleOnly()) { - if (self.appendClosing(.{ - .serial = old.serial, - .pane = @intCast(id), - .phase = .closing, - .effect = effect, - .from = old.box, - .to = closingBox(effect, old.box), - })) animated_change = true; - } - } - self.committed[id] = null; - self.tracks[id] = null; - // Never let pixels from a dead pane address a reused slot. - self.shown_tracks[id] = null; - continue; - }; - const target = panelBox(p.rects[id]); - const previous = self.committed[id]; - self.committed[id] = .{ .serial = pane.serial, .box = target }; - - if (effect == .off) { - changed = changed or previous == null or previous.?.serial != pane.serial or - !previous.?.box.eql(target); - self.tracks[id] = null; - continue; - } - if (previous) |old| { - if (old.serial == pane.serial and old.box.eql(target)) continue; - const same_lifetime = old.serial == pane.serial; - const prior = if (self.tracks[id]) |track| - if (track.serial == pane.serial and track.active()) track else null - else - null; - if (effect.lifecycleOnly() and same_lifetime) { - if (prior) |active| if (active.phase == .opening) { - var next = active; - next.from = openingBox(effect, target, p.screen_w); - next.to = target; - self.tracks[id] = next; - changed = true; - animated_change = true; - continue; - }; - self.tracks[id] = null; - changed = true; - continue; - } - if (effect.lifecycleOnly() and !same_lifetime) { - _ = self.appendClosing(.{ - .serial = old.serial, - .pane = @intCast(id), - .phase = .closing, - .effect = effect, - .from = old.box, - .to = closingBox(effect, old.box), - }); - } - const shown = if (self.shown[id]) |snapshot| - if (snapshot.serial == pane.serial) snapshot.box else null - else - null; - const from = if (!same_lifetime) - openingBox(effect, target, p.screen_w) - else if (shown) |box| - box - else if (self.acknowledged and prior != null) - prior.?.from - else - old.box; - const next: Track = .{ - .serial = pane.serial, - .pane = @intCast(id), - .phase = if (!same_lifetime or - (prior != null and prior.?.phase == .opening)) .opening else .moving, - .effect = effect, - .from = from, - .to = target, - }; - self.tracks[id] = next; - changed = true; - animated_change = true; - } else { - const next: Track = .{ - .serial = pane.serial, - .pane = @intCast(id), - .phase = .opening, - .effect = effect, - .from = openingBox(effect, target, p.screen_w), - .to = target, - }; - self.tracks[id] = next; - changed = true; - animated_change = true; - } - } - if (animated_change and effect.needsPreviousGrid()) { - self.diff_state = .requested; - } - if (changed and self.acknowledged) self.pending = true; - } - - fn appendClosing(self: *Presentation, track: Track) bool { - std.debug.assert(track.phase == .closing); - const baseline = self.previous_layout[track.pane] orelse return false; - if (!self.previous_valid or baseline.serial != track.serial or - !baseline.box.eql(track.from)) return false; - if (self.closing_len == self.closing.len) { - std.mem.copyForwards( - Track, - self.closing[0 .. self.closing.len - 1], - self.closing[1..], - ); - self.closing_len -= 1; - } - self.closing[self.closing_len] = track; - self.closing_len += 1; - return true; - } - - pub fn advance(self: *Presentation) void { - for (&self.tracks) |*slot| { - const track = if (slot.*) |*track| track else continue; - track.frame +|= 1; - if (!track.active()) slot.* = null; - } - var out: usize = 0; - for (self.closing[0..self.closing_len]) |value| { - var track = value; - track.frame +|= 1; - if (!track.active()) continue; - self.closing[out] = track; - out += 1; - } - self.closing_len = out; - } - - pub fn acknowledge(self: *Presentation, p: *Pardes, tracks: []const Track) void { - var presented: [MAX_PANES]?Track = @splat(null); - var presented_closing: [MAX_PANES]Track = undefined; - var nclosing: usize = 0; - var presented_layout: [MAX_PANES]?Snapshot = if (self.submitted_ready) - self.submitted - else - @splat(null); - if (!self.submitted_ready) for (p.panes, 0..) |slot, id| { - const pane = slot orelse continue; - presented_layout[id] = .{ .serial = pane.serial, .box = panelBox(p.rects[id]) }; - }; - for (&presented_layout, 0..) |*snapshot, id| if (snapshot.*) |saved| { - const pane = p.panes[id] orelse { - snapshot.* = null; - continue; - }; - if (pane.serial != saved.serial) snapshot.* = null; - }; - for (tracks) |track| { - if (track.phase == .closing) { - const current = for (self.closing[0..self.closing_len]) |candidate| { - if (candidate.serial == track.serial and candidate.pane == track.pane and - candidate.effect == track.effect) break true; - } else false; - if (!current or !track.active() or nclosing == presented_closing.len) continue; - presented_closing[nclosing] = track; - nclosing += 1; - continue; - } - const id: usize = track.pane; - if (id >= p.panes.len or !track.active()) continue; - const pane = p.panes[id] orelse continue; - if (pane.serial != track.serial) continue; - presented[id] = track; - presented_layout[id] = .{ .serial = track.serial, .box = track.visualBox() }; - } - self.shown_tracks = presented; - self.shown_closing = presented_closing; - self.shown_closing_len = nclosing; - self.shown = presented_layout; - self.acknowledged = true; - self.pending = false; - if (tracks.len == 0) { - self.tracks = @splat(null); - self.closing_len = 0; - self.diff_state = .none; - self.capturePrevious(p.gpa, &p.surface); - } - } - - fn capturePrevious(self: *Presentation, gpa: std.mem.Allocator, surface: *const pardes.Surface) void { - self.diff_state = .none; - const cells = surface.cells; - if (cells.len == 0) { - self.previous_valid = false; - self.previous_layout = @splat(null); - return; - } - if (self.previous_cells.len != cells.len) { - const next = gpa.alloc(pardes.Cell, cells.len) catch { - self.previous_valid = false; - self.previous_layout = @splat(null); - return; - }; - if (self.previous_cells.len > 0) gpa.free(self.previous_cells); - self.previous_cells = next; - } - for (&self.previous_body_layers, surface.bodyLayers()) |*old, *current| { - const count = if (current.rows > 0) current.cells.len else 0; - const storage = if (old.cells.len == count) old.cells else gpa.realloc(old.cells, count) catch { - self.previous_valid = false; - self.previous_layout = @splat(null); - return; - }; - if (count > 0) @memcpy(storage, current.cells); - old.* = current.*; - old.cells = storage; - } - for (&self.previous_tag_layers, surface.tagLayers()) |*old, *current| { - const count = if (current.cols > 0) current.cells.len else 0; - const storage = if (old.cells.len == count) old.cells else gpa.realloc(old.cells, count) catch { - self.previous_valid = false; - self.previous_layout = @splat(null); - return; - }; - if (count > 0) @memcpy(storage, current.cells); - old.* = current.*; - old.cells = storage; - } - @memcpy(self.previous_cells, cells); - self.previous_cols = surface.cols; - self.previous_rows = surface.rows; - self.previous_valid = true; - self.previous_layout = if (self.submitted_ready) - self.submitted - else - @splat(null); - } - - pub fn cellDiff(self: *const Presentation, cols: u16, rows: u16, col: u16, row: u16) pardes.PanelCellDiff { - if (self.diff_state != .ready or col >= cols or row >= rows or - self.diffs.len != @as(usize, cols) * rows) return .unchanged; - return self.diffs[@as(usize, row) * cols + col]; - } - - pub const Point = struct { x: f32, y: f32 }; - - /// Coordinates stay fractional until the host resolves its body font grid. - pub fn pointerFractional(self: *const Presentation, cols: u16, rows: u16, x: f32, y: f32) ?Point { - if (self.pending or !std.math.isFinite(x) or !std.math.isFinite(y) or - x < 0 or y < 0 or x >= @as(f32, @floatFromInt(cols)) or y >= @as(f32, @floatFromInt(rows))) return null; - var closing = self.shown_closing_len; - while (closing > 0) { - closing -= 1; - const track = self.shown_closing[closing]; - if (track.active() and boxContainsPoint(track.contentBox(), x, y) and - boxContainsPoint(track.presented(), x, y)) return null; - } - for ([_]Phase{ .opening, .moving }) |phase| { - var index = self.shown_tracks.len; - while (index > 0) { - index -= 1; - const track = self.shown_tracks[index] orelse continue; - if (!track.active() or track.phase != phase) continue; - switch (track.effect) { - .slide, .zoom, .vertical => { - const target = track.contentBox(); - if (track.effect == .vertical and !boxContainsPoint(target, x, y)) continue; - const shown = track.presented(); - if (!boxContainsPoint(shown, x, y)) { - if (track.effect == .vertical) return null; - continue; - } - return .{ - .x = target.x + (x - shown.x) / shown.w * target.w, - .y = target.y + (y - shown.y) / shown.h * target.h, - }; - }, - else => { - if (!boxContainsPoint(track.to, x, y)) continue; - _ = self.pointer(cols, rows, @intFromFloat(@floor(x)), @intFromFloat(@floor(y))) orelse return null; - return .{ .x = x, .y = y }; - }, - } - } - } - _ = self.pointer(cols, rows, @intFromFloat(@floor(x)), @intFromFloat(@floor(y))) orelse return null; - return .{ .x = x, .y = y }; - } - - fn boxContainsPoint(box: Box, x: f32, y: f32) bool { - return box.w > 0 and box.h > 0 and x >= box.x and y >= box.y and x < box.x + box.w and y < box.y + box.h; - } - - pub fn pointer(self: *const Presentation, cols: u16, rows: u16, col: u16, row: u16) ?CellPosition { - if (self.pending) return null; - var closing = self.shown_closing_len; - while (closing > 0) { - closing -= 1; - const track = self.shown_closing[closing]; - if (!track.active()) continue; - if (boxContainsCell(track.contentBox(), col, row) and - boxContainsCell(track.presented(), col, row)) return null; - } - const phases = [_]Phase{ .opening, .moving }; - for (phases) |phase| { - // Backends paint pane slots forward within a phase. Probe them in - // reverse so overlapping transition quads address the top pixel. - var index = self.shown_tracks.len; - while (index > 0) { - index -= 1; - const track = self.shown_tracks[index] orelse continue; - if (!track.active() or track.phase != phase) continue; - switch (track.effect) { - .slide, .zoom => { - const shown = track.presented(); - if (shown.w <= 0 or shown.h <= 0 or !boxContainsCell(shown, col, row)) continue; - const x = @as(f32, @floatFromInt(col)) + 0.5; - const y = @as(f32, @floatFromInt(row)) + 0.5; - const u = std.math.clamp((x - shown.x) / shown.w, 0, 0.999_999); - const v = std.math.clamp((y - shown.y) / shown.h, 0, 0.999_999); - const logical_x: i32 = @intFromFloat(@floor(track.to.x + u * track.to.w)); - const logical_y: i32 = @intFromFloat(@floor(track.to.y + v * track.to.h)); - return .{ - .col = @intCast(std.math.clamp(logical_x, 0, @as(i32, cols -| 1))), - .row = @intCast(std.math.clamp(logical_y, 0, @as(i32, rows -| 1))), - }; - }, - .vertical => { - const clip = track.contentBox(); - if (!boxContainsCell(clip, col, row)) continue; - const shown = track.presented(); - if (shown.w <= 0 or shown.h <= 0 or !boxContainsCell(shown, col, row)) - return null; - const x = @as(f32, @floatFromInt(col)) + 0.5; - const y = @as(f32, @floatFromInt(row)) + 0.5; - const u = std.math.clamp((x - shown.x) / shown.w, 0, 0.999_999); - const v = std.math.clamp((y - shown.y) / shown.h, 0, 0.999_999); - return .{ - .col = @intFromFloat(@floor(clip.x + u * clip.w)), - .row = @intFromFloat(@floor(clip.y + v * clip.h)), - }; - }, - .dissolve, .ascii => { - if (!boxContainsCell(track.to, col, row)) continue; - const cell_diff = self.cellDiff(cols, rows, col, row); - if (!cell_diff.changed()) - return .{ .col = col, .row = row }; - const relative_col: u16 = @intFromFloat(@floor( - @as(f32, @floatFromInt(col)) + 0.5 - track.to.x, - )); - const relative_row: u16 = @intFromFloat(@floor( - @as(f32, @floatFromInt(row)) + 0.5 - track.to.y, - )); - const visible = switch (track.effect) { - .dissolve => dissolveRevealed( - track.serial, - relative_col, - relative_row, - track.amount(), - ), - .ascii => switch (cell_diff) { - .ascii => |diff| diff.complete(track.frame), - .unchanged, .visual => true, - }, - else => unreachable, - }; - return if (visible) .{ .col = col, .row = row } else null; - }, - .edges, .fall, .wave, .curtain, .scramble, .typewriter => { - if (!boxContainsCell(track.to, col, row)) continue; - const area = CellArea.of(track.to); - const settled = std.meta.eql( - charSource( - track, - col -| area.x0, - row -| area.y0, - area, - ), - CharSource.settled, - ); - return if (settled) .{ .col = col, .row = row } else null; - }, - .off => {}, - } - } - } - for (self.shown_tracks) |maybe| { - const track = maybe orelse continue; - if (!track.active() or (track.effect != .slide and track.effect != .zoom and - track.effect != .vertical)) continue; - if (boxContainsCell(track.to, col, row)) return null; - } - return .{ .col = col, .row = row }; - } - - fn boxContainsCell(box: Box, col: u16, row: u16) bool { - const x = @as(f32, @floatFromInt(col)) + 0.5; - const y = @as(f32, @floatFromInt(row)) + 0.5; - return x >= box.x and x < box.x + box.w and y >= box.y and y < box.y + box.h; - } - - pub fn cancel(self: *Presentation) void { - self.tracks = @splat(null); - self.closing_len = 0; - self.shown_tracks = @splat(null); - self.shown_closing_len = 0; - self.diff_state = .none; - self.pending = self.acknowledged; - } - - fn prepareDiff(self: *Presentation, gpa: std.mem.Allocator, surface: *const pardes.Surface) !bool { - const count = surface.cells.len; - if (!self.previous_valid or - self.previous_cols != surface.cols or - self.previous_rows != surface.rows or - self.previous_cells.len != count) return false; - if (self.diffs.len != count) { - const next = try gpa.alloc(pardes.PanelCellDiff, count); - if (self.diffs.len > 0) gpa.free(self.diffs); - self.diffs = next; - } - for (self.diffs, self.previous_cells, surface.cells) |*diff, *old, *new| - diff.* = pardes.PanelCellDiff.between(old, new); - for (&self.tracks) |*slot| { - const track = if (slot.*) |*track| track else continue; - if (track.effect != .ascii) continue; - var longest: u16 = 1; - var row: u16 = 0; - while (row < surface.rows) : (row += 1) { - var col: u16 = 0; - while (col < surface.cols) : (col += 1) { - if (!boxContainsCell(track.to, col, row)) continue; - const index = @as(usize, row) * surface.cols + col; - switch (self.diffs[index]) { - .ascii => |diff| longest = @max(longest, diff.frameCount()), - .unchanged, .visual => {}, - } - } - } - track.frame_count = @max(track.frame_count, longest); - } - self.diff_state = .ready; - return true; - } - - pub fn submit(self: *Presentation, p: *Pardes, s: *pardes.Surface) !void { - self.submitted = @splat(null); - for (p.panes, 0..) |slot, id| { - const pane = slot orelse continue; - self.submitted[id] = .{ - .serial = pane.serial, - .box = panelBox(p.rects[id]), - }; - } - self.submitted_ready = true; - if (self.diff_state != .none and !try self.prepareDiff(p.gpa, s)) { - for (&self.tracks) |*slot| { - const track = slot.* orelse continue; - if (track.effect.needsPreviousGrid()) slot.* = null; - } - self.closing_len = 0; - self.diff_state = .none; - } - if (self.diff_state == .ready) { - s.previous_cells = self.previous_cells; - s.previous_body_layers = &self.previous_body_layers; - s.previous_tag_layers = &self.previous_tag_layers; - s.cell_diffs = self.diffs; - } - s.npanel_tracks = paintOrder( - &self.tracks, - self.closing[0..self.closing_len], - &s.panel_tracks, - ); - } - - pub fn animating(self: *const Presentation) bool { - for (self.tracks) |track| if (track != null and track.?.active()) return true; - for (self.closing[0..self.closing_len]) |track| - if (track.active()) return true; - return false; - } - - test "presentation cache allocation failures retain ownership and allow retry" { - var allocator: std.testing.FailingAllocator = .init(std.testing.allocator, .{}); - const gpa = allocator.allocator(); - var state: Presentation = .{}; - defer state.deinit(gpa); - var cells: [3]pardes.Cell = @splat(.{}); - cells[0].default = false; - cells[0].text[0] = 'a'; - var surface: pardes.Surface = .{ .cols = 2, .rows = 1, .cells = cells[0..2] }; - state.submitted[0] = .{ .serial = 7, .box = .{ .x = 0, .y = 0, .w = 2, .h = 1 } }; - state.submitted_ready = true; - state.capturePrevious(gpa, &surface); - try std.testing.expect(state.previous_valid); - try std.testing.expectEqual(@as(u32, 7), state.previous_layout[0].?.serial); - const previous = state.previous_cells.ptr; - const allocated = allocator.allocations; - allocator.fail_index = allocator.alloc_index; - state.capturePrevious(gpa, &surface); - try std.testing.expect(state.previous_valid); - try std.testing.expectEqual(allocated, allocator.allocations); - try std.testing.expect(!allocator.has_induced_failure); - - surface.cols = 3; - surface.cells = &cells; - state.submitted[0].?.box.w = 3; - state.diff_state = .ready; - state.capturePrevious(gpa, &surface); - try std.testing.expect(allocator.has_induced_failure); - try std.testing.expect(!state.previous_valid); - try std.testing.expectEqual(previous, state.previous_cells.ptr); - try std.testing.expectEqual(@as(usize, 2), state.previous_cells.len); - try std.testing.expectEqual(@as(u8, 'a'), state.previous_cells[0].text[0]); - try std.testing.expect(state.previous_layout[0] == null); - try std.testing.expectEqual(.none, state.diff_state); - - allocator.fail_index = std.math.maxInt(usize); - state.capturePrevious(gpa, &surface); - try std.testing.expect(state.previous_valid); - try std.testing.expectEqual(@as(usize, 3), state.previous_cells.len); - try std.testing.expectEqual(@as(f32, 3), state.previous_layout[0].?.box.w); - state.diff_state = .requested; - allocator.fail_index = allocator.alloc_index; - try std.testing.expectError(error.OutOfMemory, state.prepareDiff(gpa, &surface)); - try std.testing.expectEqual(.requested, state.diff_state); - try std.testing.expectEqual(@as(usize, 0), state.diffs.len); - allocator.fail_index = std.math.maxInt(usize); - try std.testing.expect(try state.prepareDiff(gpa, &surface)); - try std.testing.expectEqual(.ready, state.diff_state); - try std.testing.expectEqual(@as(usize, 3), state.diffs.len); - for (state.diffs) |diff| try std.testing.expectEqual(.unchanged, diff); - } - - test "presentation submission failure preserves shown geometry until retry is acknowledged" { - var allocator: std.testing.FailingAllocator = .init(std.testing.allocator, .{}); - const p = try Pardes.init(allocator.allocator(), .{ .tty_only = true, .cols = 40, .rows = 12 }); - defer p.deinit(); - var frame: std.heap.ArenaAllocator = .init(std.testing.allocator); - defer frame.deinit(); - _ = try p.render(frame.allocator()); - p.acknowledgePanelPresentation(&.{}); - const shown = p.presentation.shown; - const previous = p.presentation.previous_cells.ptr; - p.presentation.diff_state = .requested; - p.presentation.pending = true; - allocator.fail_index = allocator.alloc_index; - try std.testing.expectError(error.OutOfMemory, p.presentation.submit(p, &p.surface)); - try std.testing.expectEqualDeep(shown, p.presentation.shown); - try std.testing.expectEqual(previous, p.presentation.previous_cells.ptr); - try std.testing.expectEqual(.requested, p.presentation.diff_state); - try std.testing.expect(p.presentation.pending); - try std.testing.expect(p.presentation.pointer(p.screen_w, p.screen_h, 5, 3) == null); - - allocator.fail_index = std.math.maxInt(usize); - try p.presentation.submit(p, &p.surface); - try std.testing.expectEqualDeep(shown, p.presentation.shown); - try std.testing.expect(p.presentation.pending); - p.acknowledgePanelPresentation(&.{}); - try std.testing.expect(!p.presentation.pending); - try std.testing.expectEqual(CellPosition{ .col = 5, .row = 3 }, p.presentation.pointer(p.screen_w, p.screen_h, 5, 3).?); - } -}; - pub const column_weight_unit: u64 = 1 << 32; pub const max_column_weight: u64 = std.math.maxInt(u64) / MAX_COLS; @@ -1000,7 +350,7 @@ pub fn splitColumn(p: *Pardes, source_id: usize, id: usize, before: bool) bool { if (needs_rebase) old_weight *= 2; if (id == source_id) { if (p.col_n[source_col] <= 1) return false; - absorbVWeight(p, id, null); + _ = absorbVWeight(p, id, null); removePane(p, id); } else if (findPane(p, id) != null) return false; @@ -1041,9 +391,11 @@ pub fn snapColWeights(p: *Pardes, c: usize) void { /// Hand a closing pane's rows to `to`. With none named they go up: past any /// results listing to the nearest pane above that is not one, or to the /// pane below when the closing one is first in its column. -pub fn absorbVWeight(p: *Pardes, id: usize, to: ?usize) void { - const f = findPane(p, id) orelse return; - if (p.col_n[f.col] <= 1) return; +/// Give a closing pane's rows to `to`, or to the nearest document above it +/// (the pane below for the top one); the pane that got them is returned. +pub fn absorbVWeight(p: *Pardes, id: usize, to: ?usize) ?usize { + const f = findPane(p, id) orelse return null; + if (p.col_n[f.col] <= 1) return null; snapColWeights(p, f.col); var sib = to orelse if (f.idx > 0) p.col_panes[f.col][f.idx - 1] else p.col_panes[f.col][f.idx + 1]; var k = f.idx; @@ -1051,7 +403,9 @@ pub fn absorbVWeight(p: *Pardes, id: usize, to: ?usize) void { sib = p.col_panes[f.col][k - 1]; if (p.panes[sib]) |pp| if (if (pp.file) |ff| panes.Output.fileTraits(ff.output).doc else true) break; } - if (p.panes[sib]) |s| s.vweight += @as(f32, @floatFromInt(@max(1, p.rects[id].h))); + const s = p.panes[sib] orelse return null; + s.vweight += @as(f32, @floatFromInt(@max(1, p.rects[id].h))); + return sib; } pub fn splitParent(p: *Pardes, want: usize) usize { @@ -1250,8 +604,6 @@ pub fn compute(p: *Pardes) void { } } -pub const ascii_max_movement_frames: u16 = 12; - test "collapse transfers height upward and restores the original layout" { const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 80, .rows = 32 }); defer p.deinit(); @@ -1457,789 +809,6 @@ test "collapse dump restores folded state and retained expansion weight" { try std.testing.expectEqual(restored.screen_h - restored.rects[0].y, restored.rects[0].h); } -pub const Easing = enum(u8) { - linear, - smooth, - /// Quintic ease-in-out. It creeps at both ends and crosses the middle of - /// the distance fast, inside the same frame count a linear walk would use. - smoother, - in_cubic, - out_cubic, - out_back, -}; - -pub const Transition = enum(u8) { - // Numeric values are shared with the GUI shader ABI. - off = 0, - slide = 1, - zoom = 2, - dissolve = 3, - ascii = 4, - vertical = 5, - edges = 6, - fall = 7, - wave = 8, - curtain = 9, - scramble = 10, - typewriter = 11, - - pub fn easing(effect: Transition) Easing { - return switch (effect) { - .off, .dissolve, .wave => .smooth, - .slide, .vertical, .edges => .out_cubic, - .zoom => .out_back, - // Character walks and per-cell locks read best with a slow start, - // a fast middle, and a slow settle over their fixed frame count. - .ascii, .fall, .scramble => .smoother, - // A sweep and a typewriter are constant-rate by definition: easing - // their head would make the pass visibly hesitate mid-pane. - .curtain, .typewriter => .linear, - }; - } - - pub fn frames(effect: Transition) u16 { - return switch (effect) { - .off => 0, - .slide => 12, - .zoom => 14, - .dissolve => 10, - .ascii => ascii_max_movement_frames + 1, - .vertical => 12, - .edges, .curtain, .scramble => 12, - // Travelling motion needs a couple more samples than a lock or a - // rigid slide before it stops reading as a jump. - .fall, .wave, .typewriter => 14, - }; - } - - pub fn composedByCore(effect: Transition) bool { - return switch (effect) { - .ascii, .edges, .fall, .wave, .curtain, .scramble, .typewriter => true, - .off, .slide, .zoom, .dissolve, .vertical => false, - }; - } - - pub fn needsPreviousGrid(effect: Transition) bool { - return effect == .dissolve or effect == .vertical or effect.composedByCore(); - } - - pub fn lifecycleOnly(effect: Transition) bool { - return effect == .vertical; - } -}; - -pub const SceneEffect = struct { - crt: bool = false, - ripple: bool = false, - glitch: bool = false, -}; - -pub const Phase = enum(u8) { - opening = 0, - moving = 1, - /// Presentation-only content whose pane lifetime has already ended. - /// It is never a valid input target. - closing = 2, -}; - -pub const Box = extern struct { - x: f32 = 0, - y: f32 = 0, - w: f32 = 0, - h: f32 = 0, - - pub fn eql(a: Box, b: Box) bool { - return a.x == b.x and a.y == b.y and a.w == b.w and a.h == b.h; - } - - // A cell belongs to a fractional box when its center lies inside. - pub fn contains(box: Box, col: u16, row: u16) bool { - const x: f32 = @floatFromInt(col); - const y: f32 = @floatFromInt(row); - return x >= box.x and x < box.x + box.w and y >= box.y and y < box.y + box.h; - } -}; - -// Drawing and hit testing share this moving/opening/closing order. -pub fn paintOrder(live: []const ?Track, closing: []const Track, out: []Track) usize { - var len: usize = 0; - for ([_]Phase{ .moving, .opening }) |phase| for (live) |maybe| { - const track = maybe orelse continue; - if (!track.active() or track.phase != phase) continue; - if (len == out.len) return len; - out[len] = track; - len += 1; - }; - for (closing) |track| { - if (!track.active()) continue; - if (len == out.len) return len; - out[len] = track; - len += 1; - } - return len; -} - -/// One POD record is enough for every backend. `from` and `to` are logical -/// cell boxes; frontends convert them to pixels only at their render edge. -pub const Track = extern struct { - serial: u32 = 0, - pane: u8 = 0, - phase: Phase = .moving, - effect: Transition = .off, - _padding: u8 = 0, - frame: u16 = 0, - frame_count: u16 = 0, - from: Box = .{}, - to: Box = .{}, - - pub fn active(track: Track) bool { - return track.effect != .off and track.frame < track.frames(); - } - - pub fn frames(track: Track) u16 { - return if (track.frame_count != 0) track.frame_count else track.effect.frames(); - } - - pub fn amount(track: Track) f32 { - // Opening rises quickly and settles; closing reverses that motion and - // accelerates down out of the fixed clip. - if (track.phase == .closing and track.effect == .vertical) - return progressEased(.in_cubic, track.frames(), track.frame); - return progressEased(track.effect.easing(), track.frames(), track.frame); - } - - pub fn presented(track: Track) Box { - return lerpBox(track.from, track.to, track.amount()); - } - - pub fn visualBox(track: Track) Box { - return switch (track.effect) { - .slide, .zoom, .vertical => track.presented(), - .off, .dissolve => track.to, - // Every character effect stays inside the pane's final rectangle. - .ascii, .edges, .fall, .wave, .curtain, .scramble, .typewriter => track.to, - }; - } - - pub fn contentBox(track: Track) Box { - return if (track.phase == .closing) track.from else track.to; - } -}; - -pub fn openingBox(effect: Transition, target: Box, screen_width: u16) Box { - return switch (effect) { - .slide => blk: { - var from = target; - const middle = target.x + target.w * 0.5; - from.x = if (middle < @as(f32, @floatFromInt(screen_width)) * 0.5) - -target.w - else - @floatFromInt(screen_width); - break :blk from; - }, - .zoom => .{ - .x = target.x + target.w * 0.5, - .y = target.y + target.h * 0.5, - .w = 0, - .h = 0, - }, - .vertical => blk: { - var from = target; - from.y += target.h; - break :blk from; - }, - .off, .dissolve => target, - // Character effects own the glyphs inside a fixed rectangle, so their - // panel opens at exactly its final geometry. - .ascii, .edges, .fall, .wave, .curtain, .scramble, .typewriter => target, - }; -} - -pub fn closingBox(effect: Transition, source: Box) Box { - return switch (effect) { - .vertical => blk: { - var to = source; - to.y += source.h; - break :blk to; - }, - else => source, - }; -} - -pub fn sample(easing: Easing, raw: f32) f32 { - const t = std.math.clamp(raw, 0.0, 1.0); - return switch (easing) { - .linear => t, - .smooth => t * t * (3.0 - 2.0 * t), - .smoother => t * t * t * (t * (6.0 * t - 15.0) + 10.0), - .in_cubic => t * t * t, - .out_cubic => 1.0 - (1.0 - t) * (1.0 - t) * (1.0 - t), - // Robert Penner's ease-out-back polynomial. It intentionally travels - // a little past one before settling exactly on the endpoint. - .out_back => blk: { - const c1: f32 = 1.70158; - const c3 = c1 + 1.0; - const u = t - 1.0; - break :blk 1.0 + c3 * u * u * u + c1 * u * u; - }, - }; -} - -pub fn progress(effect: Transition, frame: u16) f32 { - return progressEased(effect.easing(), effect.frames(), frame); -} - -fn progressEased(easing: Easing, frames: u16, frame: u16) f32 { - if (frames <= 1 or frame >= frames - 1) return 1.0; - return sample(easing, @as(f32, @floatFromInt(frame)) / @as(f32, @floatFromInt(frames - 1))); -} - -pub fn lerpBox(from: Box, to: Box, t: f32) Box { - const u = @max(0.0, t); - return .{ - .x = from.x + (to.x - from.x) * u, - .y = from.y + (to.y - from.y) * u, - .w = @max(0.0, from.w + (to.w - from.w) * u), - .h = @max(0.0, from.h + (to.h - from.h) * u), - }; -} - -/// Stable cell noise shared by the TTY reveal and shader ports. Integer-only -/// hashing means resizing or repainting a frame does not make cells flicker. -pub fn cellNoise(serial: u32, col: u16, row: u16) f32 { - var x = serial ^ (@as(u32, col) *% 0x9e37_79b9) ^ (@as(u32, row) *% 0x85eb_ca6b); - x ^= x >> 16; - x *%= 0x7feb_352d; - x ^= x >> 15; - x *%= 0x846c_a68b; - x ^= x >> 16; - return @as(f32, @floatFromInt(x & 0xffff)) / 65535.0; -} - -/// Whether a changed dissolve cell has crossed from the frozen old grid to -/// the new one. Exact endpoints are part of the presentation contract. -pub fn dissolveRevealed(serial: u32, col: u16, row: u16, raw_progress: f32) bool { - const t = std.math.clamp(raw_progress, 0.0, 1.0); - if (t <= 0) return false; - if (t >= 1) return true; - return cellNoise(serial, col, row) < t; -} - -pub const CellArea = struct { - x0: u16 = 0, - y0: u16 = 0, - cols: u16 = 1, - rows: u16 = 1, - - pub fn of(box: Box) CellArea { - return .{ - .x0 = floorCell(box.x), - .y0 = floorCell(box.y), - .cols = ceilCell(box.w), - .rows = ceilCell(box.h), - }; - } -}; - -fn floorCell(value: f32) u16 { - return @intFromFloat(std.math.clamp(@floor(value), 0.0, @as(f32, std.math.maxInt(u16)))); -} - -fn ceilCell(value: f32) u16 { - return @intFromFloat(std.math.clamp(@ceil(value), 1.0, @as(f32, std.math.maxInt(u16)))); -} - -pub const CharSource = union(enum) { - /// Nothing has arrived here yet: keep the frozen old cell. - old, - at: Offset, - /// Paint this printable byte in the destination cell's own style, whatever - /// that cell holds — a caret marching over empty space is still a caret. - byte: u8, - churn: u8, - - pub const Offset = struct { cols: i32 = 0, rows: i32 = 0 }; - - pub const settled: CharSource = .{ .at = .{} }; -}; - -pub fn charSource(track: Track, col: u16, row: u16, area: CellArea) CharSource { - const t = track.amount(); - if (t >= 1.0) return .settled; - const w: f32 = @floatFromInt(area.cols); - const h: f32 = @floatFromInt(area.rows); - const c: f32 = @floatFromInt(col); - const r: f32 = @floatFromInt(row); - const remaining = 1.0 - t; - return switch (track.effect) { - .edges => blk: { - const travel = cellsOf(remaining * (w + 1.0)); - break :blk .{ .at = .{ .cols = if (row % 2 == 0) travel else -travel } }; - }, - // Columns rain down, each with its own stable head start, so the pane - // fills from the top and the last glyphs land at the bottom. - .fall => blk: { - const local = staggered(t, cellNoise(track.serial, col, 0) * 0.4); - if (local <= 0.0) break :blk .old; - break :blk .{ .at = .{ .rows = cellsOf((1.0 - local) * (h + 1.0)) } }; - }, - // A vertical ripple travels left to right and its amplitude decays, so - // the pane settles out of a wave instead of a fade. - .wave => .{ .at = .{ - .rows = cellsOf(remaining * @min(4.0, h) * @sin(c * 0.55 - t * 9.0)), - } }, - // A curtain of glyphs marches in from the right, column by column, left - // to right; each column still has a short slide of its own. - .curtain => blk: { - const lead = t * (w + 1.0) - c; - if (lead <= 0.0) break :blk .old; - break :blk .{ .at = .{ .cols = -cellsOf(@max(0.0, 3.0 - lead)) } }; - }, - // Every cell churns through printable ASCII and locks onto its final - // glyph at its own stable threshold: the pane resolves out of noise. - .scramble => blk: { - if (t >= cellNoise(track.serial, col, row) * 0.8) break :blk .settled; - const churn = cellNoise( - track.serial ^ (@as(u32, track.frame) *% 0x27d4_eb2f), - col, - row, - ); - break :blk .{ .churn = @intCast(33 + @min(93, @as(u32, @intFromFloat(churn * 94.0)))) }; - }, - // Reading-order reveal with a caret sitting on the write head. - .typewriter => blk: { - const head = t * w * h; - const index = r * w + c; - if (index + 1.0 <= head) break :blk .settled; - if (index <= head) break :blk .{ .byte = '_' }; - break :blk .old; - }, - // PanelAscii walks its own byte distance per cell, and the geometry - // effects never reach this path at all. - .off, .slide, .zoom, .dissolve, .vertical, .ascii => .settled, - }; -} - -fn cellsOf(distance: f32) i32 { - return @intFromFloat(@round(std.math.clamp(distance, -65535.0, 65535.0))); -} - -/// Remap track progress into one cell's own window. A stagger delays a glyph -/// without making the effect as a whole end after its last frame. -fn staggered(t: f32, delay: f32) f32 { - if (delay >= 1.0) return t; - return (t - delay) / (1.0 - delay); -} - -test "easing presets have exact endpoints and intended shapes" { - inline for (std.enums.values(Easing)) |easing| { - try std.testing.expectEqual(@as(f32, 0), sample(easing, 0)); - try std.testing.expectEqual(@as(f32, 1), sample(easing, 1)); - } - try std.testing.expectEqual(@as(f32, 0.5), sample(.linear, 0.5)); - try std.testing.expect(sample(.in_cubic, 0.5) < sample(.linear, 0.5)); - try std.testing.expect(sample(.out_cubic, 0.5) > sample(.linear, 0.5)); - try std.testing.expect(sample(.out_back, 0.8) > 1.0); - // Slow at both ends, fast through the middle, and symmetric about the - // halfway point: the same curve the integer byte walk reproduces. - try std.testing.expectEqual(@as(f32, 0.5), sample(.smoother, 0.5)); - try std.testing.expect(sample(.smoother, 0.15) < sample(.smooth, 0.15)); - try std.testing.expect(sample(.smoother, 0.85) > sample(.smooth, 0.85)); - try std.testing.expect(sample(.smoother, 0.6) - sample(.smoother, 0.4) > - sample(.linear, 0.6) - sample(.linear, 0.4)); -} - -test "transition progress completes exactly" { - inline for (std.enums.values(Transition)) |effect| { - try std.testing.expectEqual(@as(f32, 1), progress(effect, effect.frames())); - if (effect.frames() > 0) - try std.testing.expectEqual(@as(f32, 1), progress(effect, effect.frames() - 1)); - try std.testing.expectEqual(@as(f32, 1), progress(effect, std.math.maxInt(u16))); - } - try std.testing.expectEqual(@as(f32, 1), progress(.off, 0)); - - const shrinking = lerpBox(.{ .w = 100, .h = 40 }, .{}, sample(.out_back, 0.8)); - try std.testing.expectEqual(@as(f32, 0), shrinking.w); - try std.testing.expectEqual(@as(f32, 0), shrinking.h); - const opening = lerpBox(.{}, .{ .w = 100, .h = 40 }, sample(.out_back, 0.8)); - try std.testing.expect(opening.w > 100); - try std.testing.expect(opening.h > 40); -} - -test "character effects are core-composed and settle on the canonical glyph" { - const box: Box = .{ .x = 4, .y = 2, .w = 20, .h = 6 }; - const area: CellArea = .of(box); - try std.testing.expectEqual(@as(u16, 4), area.x0); - try std.testing.expectEqual(@as(u16, 2), area.y0); - try std.testing.expectEqual(@as(u16, 20), area.cols); - try std.testing.expectEqual(@as(u16, 6), area.rows); - - inline for (std.enums.values(Transition)) |effect| { - if (comptime !effect.composedByCore()) continue; - // Core composition needs the frozen old grid for every glyph which has - // not arrived, so no character effect may animate without it. - try std.testing.expect(effect.needsPreviousGrid()); - if (comptime effect == .ascii) continue; // owns its own per-cell byte walk - - const last: Track = .{ .effect = effect, .frame = effect.frames() - 1, .to = box }; - const first: Track = .{ .effect = effect, .frame = 0, .to = box }; - var moving = false; - var row: u16 = 0; - while (row < area.rows) : (row += 1) { - var col: u16 = 0; - while (col < area.cols) : (col += 1) { - // The last active sample is the exact canonical grid: no cell - // is displaced, churning, or still frozen. - try std.testing.expectEqual(CharSource.settled, charSource(last, col, row, area)); - if (!std.meta.eql(CharSource.settled, charSource(first, col, row, area))) - moving = true; - } - } - try std.testing.expect(moving); - } -} - -test "each character effect moves glyphs along its own axis" { - const box: Box = .{ .w = 30, .h = 8 }; - const area: CellArea = .of(box); - - // Rows alternate which screen edge they come from, and every glyph in a row - // travels as one rigid slide: one offset, no vertical component. - var edges: Track = .{ .effect = .edges, .frame = 2, .to = box }; - const even = charSource(edges, 5, 0, area).at; - const odd = charSource(edges, 5, 1, area).at; - try std.testing.expect(even.cols > 0); - try std.testing.expectEqual(-even.cols, odd.cols); - try std.testing.expectEqual(@as(i32, 0), even.rows); - try std.testing.expectEqual(even, charSource(edges, 17, 0, area).at); - edges.frame = 5; - try std.testing.expect(charSource(edges, 5, 0, area).at.cols < even.cols); - - // Falling columns are vertical only, staggered, and sample from below the - // destination because the new text is still above the pane. - const fall: Track = .{ .effect = .fall, .frame = 4, .to = box }; - var falling = false; - var col: u16 = 0; - while (col < area.cols) : (col += 1) switch (charSource(fall, col, 0, area)) { - .old => {}, - .byte, .churn => return error.FallShouldNotChurn, - .at => |offset| { - try std.testing.expectEqual(@as(i32, 0), offset.cols); - try std.testing.expect(offset.rows >= 0); - if (offset.rows > 0) falling = true; - }, - }; - try std.testing.expect(falling); - - // The wave displaces rows both ways as it travels, and only rows. - const wave: Track = .{ .effect = .wave, .frame = 1, .to = box }; - var above = false; - var below = false; - col = 0; - while (col < area.cols) : (col += 1) { - const offset = charSource(wave, col, 3, area).at; - try std.testing.expectEqual(@as(i32, 0), offset.cols); - if (offset.rows < 0) above = true; - if (offset.rows > 0) below = true; - } - try std.testing.expect(above and below); - - // The curtain has a head: columns behind it hold the old grid, columns the - // head has passed are settled, and the head itself is still sliding. - const curtain: Track = .{ .effect = .curtain, .frame = 5, .to = box }; - try std.testing.expectEqual(CharSource.settled, charSource(curtain, 0, 0, area)); - try std.testing.expectEqual(CharSource{ .old = {} }, charSource(curtain, 29, 0, area)); - var sliding = false; - col = 0; - while (col < area.cols) : (col += 1) switch (charSource(curtain, col, 0, area)) { - .at => |offset| if (offset.cols < 0) { - sliding = true; - }, - .old, .byte, .churn => {}, - }; - try std.testing.expect(sliding); - - var scramble: Track = .{ .effect = .scramble, .frame = 3, .to = box }; - var churning: usize = 0; - var locked: usize = 0; - var changed = false; - col = 0; - while (col < area.cols) : (col += 1) switch (charSource(scramble, col, 0, area)) { - .churn => |byte| { - try std.testing.expect(byte >= ' ' and byte <= '~'); - churning += 1; - scramble.frame = 4; - switch (charSource(scramble, col, 0, area)) { - .churn => |next| changed = changed or next != byte, - .old, .at, .byte => {}, - } - scramble.frame = 3; - }, - .at => locked += 1, - .old, .byte => return error.ScrambleShouldNotFreeze, - }; - try std.testing.expect(churning > 0 and locked > 0 and changed); - - // The typewriter writes in reading order with a caret on its head. - const typewriter: Track = .{ .effect = .typewriter, .frame = 7, .to = box }; - try std.testing.expectEqual(CharSource.settled, charSource(typewriter, 0, 0, area)); - try std.testing.expectEqual( - CharSource{ .old = {} }, - charSource(typewriter, area.cols - 1, area.rows - 1, area), - ); - var carets: usize = 0; - var row: u16 = 0; - while (row < area.rows) : (row += 1) { - col = 0; - while (col < area.cols) : (col += 1) switch (charSource(typewriter, col, row, area)) { - .byte => |byte| { - try std.testing.expectEqual(@as(u8, '_'), byte); - carets += 1; - }, - .old, .at, .churn => {}, - }; - } - try std.testing.expectEqual(@as(usize, 1), carets); -} - -test "opening presets separate geometry and content transitions" { - const target: Box = .{ .x = 30, .y = 2, .w = 20, .h = 8 }; - try std.testing.expectEqual(target, openingBox(.ascii, target, 80)); - try std.testing.expectEqual(@as(f32, 0), openingBox(.zoom, target, 80).w); - try std.testing.expectEqual(@as(f32, 80), openingBox(.slide, target, 80).x); - try std.testing.expectEqual(@as(f32, target.y + target.h), openingBox(.vertical, target, 80).y); - try std.testing.expectEqual(@as(f32, target.y + target.h), closingBox(.vertical, target).y); - - var track: Track = .{ .effect = .slide, .from = target, .to = target }; - try std.testing.expect(track.active()); - track.frame = track.effect.frames(); - try std.testing.expect(!track.active()); - - track = .{ .effect = .dissolve, .frame = 3, .from = .{}, .to = target }; - try std.testing.expectEqual(target, track.visualBox()); - - var closing: Track = .{ - .phase = .closing, - .effect = .vertical, - .from = target, - .to = closingBox(.vertical, target), - }; - try std.testing.expectEqual(target, closing.contentBox()); - closing.frame = 2; - try std.testing.expect(closing.amount() < progress(.vertical, closing.frame)); -} - -test "dissolve has exact stable endpoints" { - for (0..64) |col| { - const x: u16 = @intCast(col); - try std.testing.expect(!dissolveRevealed(42, x, 7, 0)); - try std.testing.expect(dissolveRevealed(42, x, 7, 1)); - if (dissolveRevealed(42, x, 7, 0.25)) - try std.testing.expect(dissolveRevealed(42, x, 7, 0.75)); - } -} - -pub const Animation = struct { - pub const frame_ms: u32 = 16; - pub const frame_ns: u64 = frame_ms * std.time.ns_per_ms; - pub const transition_steps: u16 = 10; - - pub fn Transition(comptime Value: type) type { - return struct { - const Self = @This(); - - from: Value, - to: Value, - displayed: Value, - step: u16 = transition_steps, - - pub fn init(value: Value) Self { - return .{ .from = value, .to = value, .displayed = value }; - } - - pub fn isActive(a: *const Self) bool { - return a.step < transition_steps; - } - - pub fn retarget(a: *Self, target: Value) void { - a.from = a.displayed; - a.to = target; - a.step = if (std.meta.eql(a.from, target)) transition_steps else 0; - if (a.step == transition_steps) a.displayed = target; - } - - pub fn advance(a: *Self) void { - if (!a.isActive()) return; - a.step += 1; - a.displayed = if (a.step == transition_steps) - a.to - else - Value.interpolate(a.from, a.to, a.step, transition_steps); - } - - pub fn snap(a: *Self, value: Value) void { - a.* = init(value); - } - }; - } - - pub fn Immediate(comptime Value: type) type { - return struct { - const Self = @This(); - - displayed: Value, - - pub fn init(value: Value) Self { - return .{ .displayed = value }; - } - - pub fn isActive(_: *const Self) bool { - return false; - } - - pub fn retarget(a: *Self, target: Value) void { - a.displayed = target; - } - - pub fn advance(_: *Self) void {} - - pub fn snap(a: *Self, value: Value) void { - a.displayed = value; - } - }; - } - - pub fn interpolateRgb(from: [3]u8, to: [3]u8, step: u16, steps: u16) [3]u8 { - if (step == 0) return from; - if (step >= steps) return to; - var out: [3]u8 = undefined; - for (&out, from, to) |*dst, a, b| { - const numerator = @as(u32, a) * (steps - step) + @as(u32, b) * step; - dst.* = @intCast((numerator + steps / 2) / steps); - } - return out; - } - - const TestColor = struct { - rgb: [3]u8, - - pub fn interpolate(from: TestColor, to: TestColor, step: u16, steps: u16) TestColor { - return .{ .rgb = interpolateRgb(from.rgb, to.rgb, step, steps) }; - } - }; - - test "Immediate lands where a completed Transition lands" { - const from: TestColor = .{ .rgb = .{ 240, 3, 90 } }; - const to: TestColor = .{ .rgb = .{ 5, 222, 90 } }; - - var faded = Animation.Transition(TestColor).init(from); - faded.retarget(to); - for (0..transition_steps) |_| faded.advance(); - - var instant = Immediate(TestColor).init(from); - try std.testing.expect(!instant.isActive()); - instant.retarget(to); - try std.testing.expectEqual(faded.displayed, instant.displayed); - - // Never active, so a frontend that renders only while something is animating stops immediately - // rather than spending ten frames discovering there is nothing to draw. - try std.testing.expect(!instant.isActive()); - instant.advance(); - try std.testing.expectEqual(to, instant.displayed); - - instant.snap(from); - try std.testing.expectEqual(from, instant.displayed); - } - - test "fixed-step interpolation has exact monotonic endpoints" { - const Tween = Animation.Transition(TestColor); - const from: TestColor = .{ .rgb = .{ 240, 3, 90 } }; - const to: TestColor = .{ .rgb = .{ 5, 222, 90 } }; - var tween = Tween.init(from); - tween.retarget(to); - try std.testing.expectEqual(from, tween.displayed); - - var previous = tween.displayed; - for (0..transition_steps) |_| { - tween.advance(); - try std.testing.expect(tween.displayed.rgb[0] <= previous.rgb[0]); - try std.testing.expect(tween.displayed.rgb[1] >= previous.rgb[1]); - try std.testing.expectEqual(@as(u8, 90), tween.displayed.rgb[2]); - previous = tween.displayed; - } - try std.testing.expect(!tween.isActive()); - try std.testing.expectEqual(to, tween.displayed); - tween.advance(); - try std.testing.expectEqual(to, tween.displayed); - } - - test "retarget starts at the currently displayed value" { - const Tween = Animation.Transition(TestColor); - const first: TestColor = .{ .rgb = .{ 0, 40, 200 } }; - const second: TestColor = .{ .rgb = .{ 200, 140, 0 } }; - const third: TestColor = .{ .rgb = .{ 20, 10, 250 } }; - var tween = Tween.init(first); - tween.retarget(second); - tween.advance(); - tween.advance(); - tween.advance(); - const on_screen = tween.displayed; - - tween.retarget(third); - try std.testing.expectEqual(on_screen, tween.from); - try std.testing.expectEqual(on_screen, tween.displayed); - try std.testing.expect(tween.isActive()); - for (0..transition_steps) |_| tween.advance(); - try std.testing.expectEqual(third, tween.displayed); - } -}; - -test "fractional panel inverse preserves compact header rows through slide and zoom" { - const layer: pardes.BodyLayer = .{ .serial = 7, .viewport = .{ .x = 4, .y = 3, .w = 30, .h = 10 }, .cols = 30, .rows = 15, .context_rows = 4 }; - for ([_]Transition{ .slide, .zoom, .vertical }) |effect| { - var presentation: Presentation = .{}; - const track: Track = .{ .serial = 7, .effect = effect, .frame = 4, .frame_count = 10, .from = .{ .x = 2, .y = 2, .w = 20, .h = 8 }, .to = .{ .x = 3, .y = 2, .w = 32, .h = 12 } }; - presentation.shown_tracks[0] = track; - const shown = track.presented(); - for (0..4) |index| { - const row: u16 = @intCast(index); - const source_x: f32 = 5.3; - const source_y = (layer.rowTop(row, 20, 10) + 5) / 20; - const x = shown.x + (source_x - track.to.x) / track.to.w * shown.w; - const y = shown.y + (source_y - track.to.y) / track.to.h * shown.h; - const point = presentation.pointerFractional(80, 30, x, y).?; - try std.testing.expectApproxEqAbs(source_x, point.x, 0.0001); - try std.testing.expectApproxEqAbs(source_y, point.y, 0.0001); - const body_hit = layer.hitAt(point.x * 10, point.y * 20, 10, 20, 8, 10).?; - try std.testing.expectEqual(row, body_hit.row); - } - } -} - -test "presentation snapshots own compact body and tag rows across later edits" { - var state: Presentation = .{}; - defer state.deinit(std.testing.allocator); - var cells: [1]pardes.Cell = .{.{}}; - var body: [2]pardes.Cell = .{ .{}, .{} }; - body[0].text[0] = 'A'; - var surface: pardes.Surface = .{ .cols = 1, .rows = 1, .cells = &cells }; - surface.body_layers[0] = .{ .serial = 9, .cols = 1, .rows = 2, .context_rows = 1, .cells = &body }; - var tag: [1]pardes.Cell = .{.{}}; - tag[0].text[0] = 'T'; - surface.tag_layers[0] = .{ .kind = .pane, .serial = 9, .cols = 1, .cells = &tag }; - state.capturePrevious(std.testing.allocator, &surface); - try std.testing.expect(state.previous_valid); - tag[0].text[0] = 'U'; - try std.testing.expectEqual(@as(u8, 'T'), state.previous_tag_layers[0].cells[0].text[0]); - body[0].text[0] = 'B'; - surface.body_layers[0].context_rows = 0; - try std.testing.expectEqual(@as(u8, 'A'), state.previous_body_layers[0].cells[0].text[0]); - try std.testing.expectEqual(@as(u16, 1), state.previous_body_layers[0].context_rows); - state.capturePrevious(std.testing.allocator, &surface); - try std.testing.expectEqual(@as(u8, 'B'), state.previous_body_layers[0].cells[0].text[0]); - try std.testing.expectEqual(@as(u8, 'U'), state.previous_tag_layers[0].cells[0].text[0]); -} - test "column reorder moves only crossed state and preserves weights" { const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 173, .rows = 20 }); defer p.deinit(); diff --git a/src/look.zig b/src/look.zig index 3da2e044..2e27a001 100644 --- a/src/look.zig +++ b/src/look.zig @@ -8,6 +8,7 @@ const pdf_enabled = @import("pardes_config").mupdf; const fs = @import("fs.zig"); const platform_has_fs = fs.platform_has_fs; const layout = @import("layout.zig"); +const animation = @import("animation.zig"); const modal = @import("modal.zig"); const filesystem = @import("fs.zig"); const panes = @import("panes.zig"); @@ -20,7 +21,7 @@ const pdf = panes.Pdf.pdf; const Pane = panes.Pane; const MAX_PANES = pardes.MAX_PANES; const tag_layer = @import("tag_layer.zig"); -const TagHit = tag_layer.Hit; +const TagHit = pardes.TagHit; const BOX_H = pardes.BOX_H; const TAG_TEXT_INSET = pardes.TAG_TEXT_INSET; const pathUnder = pardes.pathUnder; @@ -1166,6 +1167,13 @@ pub fn lookAt(p: *Pardes, id: usize, operand: []const u8) void { pane.search_row = null; _ = searchStep(p, id, 1); } + // A path that is not there searches for its text, and a search + // that found nothing says so rather than leave an empty buffer. + const results = if (pane.search_pane) |rid| p.panes[rid] else null; + if (results) |r| if (r.file) |f| if (f.content.len == 0) { + var said: [96]u8 = undefined; + p.setMessage(id, std.fmt.bufPrint(&said, "Look: no match for \"{s}\"", .{@import("Messages.zig").clip(trimmed, 48)}) catch "Look: no match"); + }; }, .pane => |t| { if (t.id >= MAX_PANES) return; @@ -1371,13 +1379,13 @@ test "stationary Look hover follows only acknowledged panel samples" { defer p.deinit(); const pane = p.panes[0].?; const rect = p.rects[0]; - const target: layout.Box = .{ + const target: animation.Box = .{ .x = @floatFromInt(rect.x), .y = @floatFromInt(rect.y), .w = @floatFromInt(rect.w), .h = @floatFromInt(rect.h), }; - var track: layout.Track = .{ + var track: animation.Track = .{ .serial = pane.serial, .pane = 0, .phase = .moving, diff --git a/src/macos.zig b/src/macos.zig index d6ceb535..b472e6cc 100644 --- a/src/macos.zig +++ b/src/macos.zig @@ -12,6 +12,7 @@ const colors = @import("colors.zig"); const look = @import("look.zig"); const message = pardes.Messages.Message; const layout = @import("layout.zig"); +const animation = @import("animation.zig"); const file_watch = @import("file_watch.zig"); const image = if (pardes.pdf_enabled) @import("image.zig") else struct {}; const host_io = @import("host_io.zig"); @@ -72,8 +73,8 @@ pub const Scene = extern struct { frame: u32 = 0, }; -pub const PanelBox = layout.Box; -pub const PanelTrack = layout.Track; +pub const PanelBox = animation.Box; +pub const PanelTrack = animation.Track; pub const Image = extern struct { serial: u32, @@ -111,13 +112,11 @@ const cell_flag_default: u8 = 1; const cell_flag_tagline: u8 = 2; const cell_flag_hover: u8 = 4; const scene_flag_crt: u32 = 1 << 0; -const scene_flag_ripple: u32 = 1 << 1; -const scene_flag_glitch: u32 = 1 << 2; const scene_frame_hz: u32 = 60; const scene_wrap_ns: u64 = 4096 * std.time.ns_per_s; -const max_tick_catch_up_ns: u64 = 4 * pardes.layout.Animation.frame_ns; +const max_tick_catch_up_ns: u64 = 4 * pardes.animation.frame_ns; const theme_watch_pane: u8 = @intCast(pardes.MAX_PANES); const watch_slot_count = pardes.MAX_PANES + 1; @@ -132,31 +131,22 @@ const Pty = struct { }; /// A watched child exited: wake the host, which takes it (`takeExits`). +/// Called on a watcher thread holding host_io's exit lock, which +/// pardes_deinit takes to clear the wake: safe only because the runtime's +/// wakeup never waits for the main thread (AppDelegate's is a +/// DispatchQueue.main.async); one that did would deadlock the quit. fn wakeForExit(ctx: ?*anyopaque) void { const st: *State = @ptrCast(@alignCast(ctx orelse return)); wake(st); } -/// Each watched child that exited: reaped, the core told, and its pty -/// closed if its end of file came first. -fn takeExits(st: *State) bool { - var did = false; - while (host_io.takeExited()) |pid| for (&st.ptys) |*slot| { - const pt = if (slot.*) |*pt| pt else continue; - if (pt.pid != pid or pt.cmd.exited) continue; - pt.cmd.exit((host_io.reapExited(pid) orelse break).status); - pt.pid = 0; // reaped: no signal or retire may reach whoever gets it next - break; - }; - for (&st.ptys, 0..) |*slot, id| { - const pt = if (slot.*) |*pt| pt else continue; - if (!pt.cmd.due()) continue; - pt.cmd.told = true; - st.core.update(.{ .exited = .{ .pane = @intCast(id), .status = pt.cmd.status } }); - if (pt.cmd.eof) reap(st, @intCast(id)); - did = true; - } - return did; +/// The command panes' exits, told once their output is in (host_io). +fn takeExits(st: *State) void { + host_io.takeExits(st.core, &st.ptys, st, closeWatched); +} + +fn closeWatched(st: *State, id: usize) void { + reap(st, @intCast(id)); } const WatchedFile = struct { @@ -882,16 +872,16 @@ export fn pardes_should_quit() bool { return st.core.quit; } -fn encodeSceneEffects(effects: layout.SceneEffect) u32 { +// The Metal shell keeps its own CRT kernel: the GUI's bundled post pass, as +// a flag. +fn encodeSceneEffects(post: *const pardes.config.Runtime.Post) u32 { var flags: u32 = 0; - if (effects.crt) flags |= scene_flag_crt; - if (effects.ripple) flags |= scene_flag_ripple; - if (effects.glitch) flags |= scene_flag_glitch; + if (post.has(.crt)) flags |= scene_flag_crt; return flags; } fn currentSceneFlags(st: *const State) u32 { - return encodeSceneEffects(st.core.settings.scene_effects); + return encodeSceneEffects(&st.core.settings.post); } fn advanceSceneClock(st: *State, elapsed_ns: u64) void { @@ -902,18 +892,18 @@ const TickSpend = struct { elapsed_ns: u64, steps: u32, bank_ns: u64 }; fn spendTickTime(previous_ns: u64, now_ns: u64, bank_ns: u64) TickSpend { const measured = if (previous_ns == 0 or now_ns <= previous_ns) - pardes.layout.Animation.frame_ns + pardes.animation.frame_ns else now_ns - previous_ns; const elapsed = @min(measured, max_tick_catch_up_ns); var bank = bank_ns +| elapsed; var steps: u32 = 0; - while (bank >= pardes.layout.Animation.frame_ns) : (steps += 1) bank -= pardes.layout.Animation.frame_ns; + while (bank >= pardes.animation.frame_ns) : (steps += 1) bank -= pardes.animation.frame_ns; return .{ .elapsed_ns = elapsed, .steps = steps, .bank_ns = bank }; } test "the animation clock spends real time, not callbacks" { - const frame = pardes.layout.Animation.frame_ns; + const frame = pardes.animation.frame_ns; const expectEqual = std.testing.expectEqual; const first = spendTickTime(0, 999 * std.time.ns_per_s, 0); @@ -1302,7 +1292,9 @@ export fn pardes_watch_changed(pane: u8, generation: u32) void { fn drainInbox(st: *State) bool { var batch = st.inbox.take(st.io); - var did = takeExits(st) or batch.len > 0; + // After this batch's output, which an exit is told behind. + defer takeExits(st); + var did = batch.len > 0; for (batch.slice()) |msg| { defer msg.free(st.gpa); switch (msg) { @@ -1318,9 +1310,7 @@ fn drainInbox(st: *State) bool { // closing it would hang up one that runs on without it. // Its exit, if it came first, is told now its output is in. if (pt.cmd.watched) { - pt.cmd.eof = true; - st.core.update(.{ .eof = .{ .pane = e.pane } }); - _ = takeExits(st); + host_io.commandEof(st.core, &st.ptys, e.pane, st, closeWatched); continue; } // Unwatched, a command's exit is read here, as its end. @@ -1913,25 +1903,22 @@ fn clearFrame(st: *State) void { st.panel_diff_len = 0; } -fn blankTagCells(cells: []Cell, cols: u16, rows: u16, source: []const pardes.Cell, layers: []const pardes.TagLayer) void { +fn blankTagCells(cells: []Cell, cols: u16, rows: u16, source: []const pardes.Cell, layers: []const pardes.Layer) void { for (layers) |layer| { - if (layer.cols == 0 or layer.viewport.y >= rows or layer.viewport.x >= cols) continue; + if (layer.rows == 0 or layer.viewport.y >= rows or layer.viewport.x >= cols) continue; const start = @as(usize, layer.viewport.y) * cols + layer.viewport.x; const count = @min(layer.viewport.w, cols - layer.viewport.x); - for (cells[start..][0..count], source[start..][0..count]) |*cell, was| { - // The tag text is the layer's to draw, but a look-hover on a tag - // word is a canonical fact: carry the hover bit through so the - // glass overlay still finds the affordance rect. - cell.* = encodeCell(.{}); - cell.flags |= @as(u8, @intFromBool(was.hover)) * cell_flag_hover; - } + // The tag text is the layer's to draw. (The look-hover's glass + // rect went with the core's hover bit, stage 8's follow-up.) + _ = source; + for (cells[start..][0..count]) |*cell| cell.* = encodeCell(.{}); } } fn tagCursorCovered(core: *const pardes.Pardes) bool { const cursor = core.surface.cursor orelse return false; for (core.surface.tag_layers) |layer| { - if (layer.cols != 0 and cursor.y == layer.viewport.y and cursor.x >= layer.viewport.x and + if (layer.rows != 0 and cursor.y == layer.viewport.y and cursor.x >= layer.viewport.x and cursor.x - layer.viewport.x < layer.viewport.w) return true; } return false; @@ -2173,7 +2160,7 @@ export fn pardes_tag_layer_value(index: u32, field: u32) u32 { 5 => layer.viewport.y, 6 => layer.viewport.w, 7 => layer.viewport.h, - 8 => if (layer.cursor) |c| c.col else 65535, + 8 => if (layer.cursor) |c| c.x else 65535, 9 => if (layer.cursor) |c| @intFromBool(c.bar) else 0, 10 => @as(u32, layer.bg[0]) << 16 | @as(u32, layer.bg[1]) << 8 | layer.bg[2], 11 => @intFromBool(layer.kind == .pane and st.core.settings.tag_bottom), @@ -2191,7 +2178,7 @@ export fn pardes_tag_layer_cells(index: u32) ?[*]const Cell { const st = &(state orelse return null); if (index >= pardes.MAX_TAG_LAYERS) return null; const layer = &st.core.surface.tag_layers[index]; - if (layer.cols == 0) return null; + if (layer.rows == 0) return null; const cells = &st.tag_cells[index]; if (cells.len != layer.cells.len) cells.* = st.gpa.realloc(cells.*, layer.cells.len) catch return null; for (layer.cells, cells.*) |source, *out| out.* = encodeCell(source); @@ -2460,7 +2447,7 @@ fn spawnShell(ctx: ?*anyopaque, pane: u8, cwd: []const u8) void { .pid = child.pid, .gen = gen, .reader = .{ .any_future = null, .result = {} }, - .cmd = .{ .watched = (if (core.panes[pane]) |pn| pn.command != null else false) and host_io.watchExit(child.pid) }, + .cmd = .{ .watched = (if (core.panes[pane]) |pn| pn.command != null else false) and host_io.watchExit(child.pid), .fd = child.file.handle }, }; var lbuf: [1024]u8 = undefined; if (host_io.shellCwd(child.pid, &lbuf)) |wd| core.setCwd(pane, wd); @@ -2628,7 +2615,7 @@ fn encodeCell(cell: pardes.Cell) Cell { .fg = encodeColor(cell.style.fg), .bg = encodeColor(cell.style.bg), .attrs = encodeAttrs(cell.style), - .flags = encodeCellFlags(cell.default, cell.style.font_role, cell.hover), + .flags = encodeCellFlags(cell.default, cell.style.font_role, false), .len = if (cell.default) 1 else cell.len, }; if (cell.default) @@ -2897,23 +2884,21 @@ test "pardes.h matches the Zig boundary" { try expectEqual(@as(u8, c.PARDES_CELL_HOVER), cell_flag_hover); try expectEqual(@as(u16, c.PARDES_TOPBAR_H), pardes.TOPBAR_H); try expectEqual(@as(u32, c.PARDES_SCENE_CRT), scene_flag_crt); - try expectEqual(@as(u32, c.PARDES_SCENE_RIPPLE), scene_flag_ripple); - try expectEqual(@as(u32, c.PARDES_SCENE_GLITCH), scene_flag_glitch); - try expectEqual(@as(u8, c.PARDES_PANEL_OPENING), @intFromEnum(layout.Phase.opening)); - try expectEqual(@as(u8, c.PARDES_PANEL_MOVING), @intFromEnum(layout.Phase.moving)); - try expectEqual(@as(u8, c.PARDES_PANEL_CLOSING), @intFromEnum(layout.Phase.closing)); - try expectEqual(@as(u8, c.PARDES_PANEL_OFF), @intFromEnum(layout.Transition.off)); - try expectEqual(@as(u8, c.PARDES_PANEL_SLIDE), @intFromEnum(layout.Transition.slide)); - try expectEqual(@as(u8, c.PARDES_PANEL_ZOOM), @intFromEnum(layout.Transition.zoom)); - try expectEqual(@as(u8, c.PARDES_PANEL_DISSOLVE), @intFromEnum(layout.Transition.dissolve)); - try expectEqual(@as(u8, c.PARDES_PANEL_ASCII), @intFromEnum(layout.Transition.ascii)); - try expectEqual(@as(u8, c.PARDES_PANEL_VERTICAL), @intFromEnum(layout.Transition.vertical)); - try expectEqual(@as(u8, c.PARDES_PANEL_EDGES), @intFromEnum(layout.Transition.edges)); - try expectEqual(@as(u8, c.PARDES_PANEL_FALL), @intFromEnum(layout.Transition.fall)); - try expectEqual(@as(u8, c.PARDES_PANEL_WAVE), @intFromEnum(layout.Transition.wave)); - try expectEqual(@as(u8, c.PARDES_PANEL_CURTAIN), @intFromEnum(layout.Transition.curtain)); - try expectEqual(@as(u8, c.PARDES_PANEL_SCRAMBLE), @intFromEnum(layout.Transition.scramble)); - try expectEqual(@as(u8, c.PARDES_PANEL_TYPEWRITER), @intFromEnum(layout.Transition.typewriter)); + try expectEqual(@as(u8, c.PARDES_PANEL_OPENING), @intFromEnum(animation.Phase.opening)); + try expectEqual(@as(u8, c.PARDES_PANEL_MOVING), @intFromEnum(animation.Phase.moving)); + try expectEqual(@as(u8, c.PARDES_PANEL_CLOSING), @intFromEnum(animation.Phase.closing)); + try expectEqual(@as(u8, c.PARDES_PANEL_OFF), @intFromEnum(animation.Transition.off)); + try expectEqual(@as(u8, c.PARDES_PANEL_SLIDE), @intFromEnum(animation.Transition.slide)); + try expectEqual(@as(u8, c.PARDES_PANEL_ZOOM), @intFromEnum(animation.Transition.zoom)); + try expectEqual(@as(u8, c.PARDES_PANEL_DISSOLVE), @intFromEnum(animation.Transition.dissolve)); + try expectEqual(@as(u8, c.PARDES_PANEL_ASCII), @intFromEnum(animation.Transition.ascii)); + try expectEqual(@as(u8, c.PARDES_PANEL_VERTICAL), @intFromEnum(animation.Transition.vertical)); + try expectEqual(@as(u8, c.PARDES_PANEL_EDGES), @intFromEnum(animation.Transition.edges)); + try expectEqual(@as(u8, c.PARDES_PANEL_FALL), @intFromEnum(animation.Transition.fall)); + try expectEqual(@as(u8, c.PARDES_PANEL_WAVE), @intFromEnum(animation.Transition.wave)); + try expectEqual(@as(u8, c.PARDES_PANEL_CURTAIN), @intFromEnum(animation.Transition.curtain)); + try expectEqual(@as(u8, c.PARDES_PANEL_SCRAMBLE), @intFromEnum(animation.Transition.scramble)); + try expectEqual(@as(u8, c.PARDES_PANEL_TYPEWRITER), @intFromEnum(animation.Transition.typewriter)); try expectEqual(@as(u21, c.PARDES_KEY_ENTER), pardes.Key.enter); try expectEqual(@as(u21, c.PARDES_KEY_ESCAPE), pardes.Key.escape); @@ -2969,14 +2954,10 @@ test "pardes.h matches the Zig boundary" { test "scene effect flags and display clock are compact and independent" { const expectEqual = std.testing.expectEqual; - try expectEqual(@as(u32, 0), encodeSceneEffects(.{})); - try expectEqual(scene_flag_crt, encodeSceneEffects(.{ .crt = true })); - try expectEqual(scene_flag_ripple, encodeSceneEffects(.{ .ripple = true })); - try expectEqual(scene_flag_glitch, encodeSceneEffects(.{ .glitch = true })); - try expectEqual( - scene_flag_crt | scene_flag_ripple | scene_flag_glitch, - encodeSceneEffects(.{ .crt = true, .ripple = true, .glitch = true }), - ); + var post: pardes.config.Runtime.Post = .{}; + try expectEqual(@as(u32, 0), encodeSceneEffects(&post)); + _ = post.set(.crt, "", true); + try expectEqual(scene_flag_crt, encodeSceneEffects(&post)); var st: State = undefined; st.scene_ns = scene_wrap_ns - (std.time.ns_per_ms * 5); @@ -3164,7 +3145,7 @@ test "mac tag layer ABI preserves logical capacity and physical grip" { logical[11].text[0] = 'Z'; logical[11].len = 1; logical[11].default = false; - core.surface.tag_layers[0] = .{ .kind = .pane, .id = 1, .serial = 42, .viewport = .{ .x = 2, .y = 1, .w = 6, .h = 1 }, .cols = 12, .cells = &logical, .bg = .{ 0x12, 0x34, 0x56 }, .cursor = .{ .col = 11, .bar = true } }; + core.surface.tag_layers[0] = .{ .kind = .pane, .id = 1, .serial = 42, .viewport = .{ .x = 2, .y = 1, .w = 6, .h = 1 }, .cols = 12, .rows = 1, .cells = &logical, .bg = .{ 0x12, 0x34, 0x56 }, .cursor = .{ .x = 11, .y = 0, .bar = true } }; defer core.surface.tag_layers[0] = .{}; try std.testing.expectEqual(@as(u32, 12), pardes_tag_layer_value(0, 0)); try std.testing.expectEqual(@as(u32, 0x123456), pardes_tag_layer_value(0, 10)); @@ -3185,16 +3166,11 @@ test "mac tag layer ABI preserves logical capacity and physical grip" { try std.testing.expectEqual(@as(u32, 11), pardes_tag_layer_value(0, 8)); try std.testing.expectEqual(@as(u8, 'Z'), pardes_tag_layer_cells(0).?[11].text[0]); var canonical: [24]Cell = @splat(encodeCell(.{ .text = .{'G'} ++ .{0} ** 6, .len = 1, .default = false })); - // A look-hover under the layer is a canonical fact and survives the blank; - // the glyph it marks does not, because the layer redraws that text itself. var source: [24]pardes.Cell = @splat(.{}); - source[11].hover = true; blankTagCells(&canonical, 8, 3, &source, &core.surface.tag_layers); try std.testing.expectEqual(@as(u8, 'G'), canonical[9].text[0]); try std.testing.expectEqual(@as(u8, 'G'), canonical[18].text[0]); try std.testing.expectEqual(encodeCell(.{}).len, canonical[10].len); - try std.testing.expectEqual(@as(u8, 0), canonical[10].flags & cell_flag_hover); - try std.testing.expectEqual(cell_flag_hover, canonical[11].flags & cell_flag_hover); } test "mac window blur builtin reaches the ABI without changing opacity" { diff --git a/src/macos/Sources/PardesView.swift b/src/macos/Sources/PardesView.swift index 70f467e3..8ba9c84b 100644 --- a/src/macos/Sources/PardesView.swift +++ b/src/macos/Sources/PardesView.swift @@ -684,7 +684,7 @@ final class PardesView: NSView { private var latchedButton: pardes_mouse_button_e? private var latchedCell: GridPoint? /// Last physical point delivered by AppKit and its mapping through the - /// accepted scene. Ripple/glitch can move a source cell under a stationary + /// accepted scene. The CRT's barrel moves a source cell under a stationary /// hand, so successful scene presentations reconcile this point again. private var pointerPoint: CGPoint? private var pointerCell: GridPoint? diff --git a/src/macos/Sources/ScenePostprocessor.swift b/src/macos/Sources/ScenePostprocessor.swift index cf7892b3..41d54e34 100644 --- a/src/macos/Sources/ScenePostprocessor.swift +++ b/src/macos/Sources/ScenePostprocessor.swift @@ -205,11 +205,9 @@ final class ScenePostprocessor { if scene.flags != 0 { let crt: Float = scene.flags & UInt32(PARDES_SCENE_CRT) != 0 ? 1 : 0 - let ripple: Float = scene.flags & UInt32(PARDES_SCENE_RIPPLE) != 0 ? 1 : 0 - let glitch: Float = scene.flags & UInt32(PARDES_SCENE_GLITCH) != 0 ? 1 : 0 // SDL samples the scene with CLAMP_TO_EDGE. A finite Core Image // instead supplies transparent black outside its extent, which - // would make ripple/glitch tear dark seams at the window edge. + // would tear dark seams at the window edge. // Clamp the input only; the kernel still emits true black before // sampling when a destination lies outside the CRT tube. let sceneInput = filtered.clampedToExtent() @@ -218,7 +216,7 @@ final class ScenePostprocessor { roiCallback: { _, _ in extent }, arguments: [ sceneInput, scene.time_seconds, Float(scene.frame), - crt, ripple, glitch, + crt, CIVector(x: extent.width, y: extent.height), CIVector(x: extent.minX, y: extent.minY), ]) @@ -291,7 +289,7 @@ final class ScenePostprocessor { /// The scene kernel is a destination-to-source mapping. Pointer input must /// apply that same mapping before the grid and its panel tracks see a cell, - /// otherwise a visible word under ripple/glitch is not the word Look gets. + /// otherwise a visible word under the barrel is not the word Look gets. static func sourcePoint( _ point: CGPoint, size: CGSize, @@ -311,27 +309,8 @@ final class ScenePostprocessor { ccY *= barrel uvX = ccX * 0.5 + 0.5 uvY = ccY * 0.5 + 0.5 - // Only CRT has a black tube. Ripple/glitch without CRT sample through - // the texture's clamp-to-edge policy and remain clickable there. + // The CRT's black tube has no cell under it. if crt > 0.5 && min(min(uvX, uvY), min(1 - uvX, 1 - uvY)) <= 0 { return nil } - - let time = scene.time_seconds - if scene.flags & UInt32(PARDES_SCENE_RIPPLE) != 0 { - let centeredX = uvX - 0.5 - let centeredY = uvY - 0.5 - let radius = sqrtf(centeredX * centeredX + centeredY * centeredY) - let envelope = 1 - smoothstep(0.04, 0.72, radius) - let wave = sinf(radius * 42 - time * 5.2) - let travel = wave * envelope * 0.0032 / max(radius, 0.00001) - uvX += centeredX * travel - uvY += centeredY * travel - } - if scene.flags & UInt32(PARDES_SCENE_GLITCH) != 0 { - let band = floorf(uvY * 96) - let seed = noise(band, floorf(time * 13)) - let tear = smoothstep(0.955, 1, seed) - uvX += (noise(seed, band) - 0.5) * tear * 0.020 - } uvX = min(max(uvX, 0), max(0, 1 - 1 / Float(size.width))) uvY = min(max(uvY, 0), max(0, 1 - 1 / Float(size.height))) return CGPoint( @@ -339,23 +318,4 @@ final class ScenePostprocessor { y: CGFloat(1 - uvY) * size.height) } - private static func smoothstep(_ edge0: Float, _ edge1: Float, _ x: Float) -> Float { - let t = min(max((x - edge0) / (edge1 - edge0), 0), 1) - return t * t * (3 - 2 * t) - } - - /// Scalar spelling of pardesNoise in crt.ci.metal. Float arithmetic is - /// deliberate: the shader's band decision must not move at a Double round. - private static func noise(_ x: Float, _ y: Float) -> Float { - var qx = fract(x * 0.1031) - var qy = fract(y * 0.1031) - var qz = fract(x * 0.1031) - let d = qx * (qy + 33.33) + qy * (qz + 33.33) + qz * (qx + 33.33) - qx += d - qy += d - qz += d - return fract((qx + qy) * qz) - } - - private static func fract(_ x: Float) -> Float { x - floorf(x) } } diff --git a/src/macos/pardes.h b/src/macos/pardes.h index f74330e5..29f8a37d 100644 --- a/src/macos/pardes.h +++ b/src/macos/pardes.h @@ -82,8 +82,7 @@ typedef struct { // from the background colour, which a real selection shares. #define PARDES_CELL_HOVER 0x04u -// One coherent snapshot for the full-window shader pass. The bitmask lets the -// host run CRT, ripple and glitch in one kernel instead of stacking filters; +// One coherent snapshot for the full-window shader pass (CRT); // time/frame advance only on pardes_animation_tick's display clock. typedef struct { uint32_t flags; @@ -92,8 +91,6 @@ typedef struct { } pardes_scene_s; #define PARDES_SCENE_CRT 0x01u -#define PARDES_SCENE_RIPPLE 0x02u -#define PARDES_SCENE_GLITCH 0x04u // One backend-neutral pane transition. Boxes are logical cell rectangles; // the native shader converts them to backing pixels using the same measured diff --git a/src/mouse.zig b/src/mouse.zig index d1c32b40..22eb3270 100644 --- a/src/mouse.zig +++ b/src/mouse.zig @@ -7,6 +7,8 @@ const exec = @import("exec.zig"); const look = @import("look.zig"); const std = @import("std"); const layout = @import("layout.zig"); +const Presentation = @import("Presentation.zig"); +const animation = @import("animation.zig"); const modal = @import("modal.zig"); const ctlfs = @import("ninep/tree.zig"); const panes = @import("panes.zig"); @@ -720,9 +722,7 @@ fn dispatchPointerBuiltin( const operand = text orelse return; if (gesture) |g| if (reportGesture(p, id, cmd, operand, g.on_tag, g.operand, arg != null)) return; // A middle click on a body is the exec a bound REPL may take. - p.exec_from_body = cmd == config.exec_cmd and gesture != null and !gesture.?.on_tag; - defer p.exec_from_body = false; - exec.runBuiltin(p, cmd, id, "", exec.withArg(p, operand, arg)); + exec.runBuiltinFrom(p, cmd, id, "", exec.withArg(p, operand, arg), gesture != null and !gesture.?.on_tag); } fn mirrorTtySelection(p: *Pardes, pane: *Pane) void { @@ -1235,7 +1235,7 @@ test "pointer coordinates follow presented panel geometry" { defer p.deinit(); const pane = p.panes[0].?; - const moving: layout.Track = .{ + const moving: animation.Track = .{ .serial = pane.serial, .pane = 0, .phase = .moving, @@ -1246,13 +1246,13 @@ test "pointer coordinates follow presented panel geometry" { p.acknowledgePanelPresentation(&.{moving}); // One shared physical-to-logical map feeds all pointer gestures. The // selected sample is 26.25% across and 35% down the presented rectangle. - try std.testing.expectEqual(layout.Presentation.CellPosition{ .col = 21, .row = 7 }, p.presentation.pointer(p.screen_w, p.screen_h, 30, 8).?); + try std.testing.expectEqual(Presentation.CellPosition{ .col = 21, .row = 7 }, p.presentation.pointer(p.screen_w, p.screen_h, 30, 8).?); // Canonical cells covered only by the not-yet-arrived target are inert. try std.testing.expect(p.presentation.pointer(p.screen_w, p.screen_h, 2, 2) == null); // Unrelated screen space remains in the ordinary grid coordinate system. - try std.testing.expectEqual(layout.Presentation.CellPosition{ .col = 100, .row = 10 }, p.presentation.pointer(p.screen_w, p.screen_h, 100, 10).?); + try std.testing.expectEqual(Presentation.CellPosition{ .col = 100, .row = 10 }, p.presentation.pointer(p.screen_w, p.screen_h, 100, 10).?); - p.acknowledgePanelPresentation(&.{layout.Track{ + p.acknowledgePanelPresentation(&.{animation.Track{ .serial = pane.serial, .pane = 0, .phase = .opening, @@ -1264,7 +1264,7 @@ test "pointer coordinates follow presented panel geometry" { // Tracks paint in pane-slot order inside a phase. The later slot is the // top quad and therefore owns an overlap, even though both are moving. - const overlap = [_]layout.Track{ .{ + const overlap = [_]animation.Track{ .{ .serial = pane.serial, .pane = 0, .phase = .moving, @@ -1282,7 +1282,7 @@ test "pointer coordinates follow presented panel geometry" { p.presentation.shown_tracks = @splat(null); p.presentation.shown_tracks[0] = overlap[0]; p.presentation.shown_tracks[1] = overlap[1]; - try std.testing.expectEqual(layout.Presentation.CellPosition{ .col = 65, .row = 3 }, p.presentation.pointer(p.screen_w, p.screen_h, 25, 3).?); + try std.testing.expectEqual(Presentation.CellPosition{ .col = 65, .row = 3 }, p.presentation.pointer(p.screen_w, p.screen_h, 25, 3).?); } test "queued pointer input is inert until a changed layout is presented" { @@ -1298,7 +1298,7 @@ test "queued pointer input is inert until a changed layout is presented" { try std.testing.expect(p.presentation.pending); try std.testing.expect(p.presentation.pointer(p.screen_w, p.screen_h, 10, 4) == null); - var tracks: [MAX_PANES]layout.Track = undefined; + var tracks: [MAX_PANES]animation.Track = undefined; var len: usize = 0; for (p.presentation.tracks) |maybe| if (maybe) |track| { tracks[len] = track; @@ -1315,7 +1315,7 @@ test "pointer rejects panel content cells which have not materialized" { const p = try Pardes.init(std.testing.allocator, .{ .cols = 80, .rows = 12, .tty_only = true }); defer p.deinit(); const pane = p.panes[0].?; - const target: layout.Box = .{ .x = 4, .y = 2, .w = 32, .h = 4 }; + const target: animation.Box = .{ .x = 4, .y = 2, .w = 32, .h = 4 }; p.presentation.diffs = try p.gpa.alloc(PanelCellDiff, @as(usize, p.screen_w) * p.screen_h); @memset(p.presentation.diffs, .unchanged); for (2..6) |row| { @@ -1330,9 +1330,9 @@ test "pointer rejects panel content cells which have not materialized" { } p.presentation.diff_state = .ready; - for ([_]layout.Transition{ .dissolve, .ascii }) |effect| { + for ([_]animation.Transition{ .dissolve, .ascii }) |effect| { const frame: u16 = if (effect == .dissolve) 3 else 5; - const track: layout.Track = .{ + const track: animation.Track = .{ .serial = pane.serial, .pane = 0, .phase = .opening, @@ -1351,7 +1351,7 @@ test "pointer rejects panel content cells which have not materialized" { const col: u16 = @intCast(4 + relative_col); const row: u16 = @intCast(2 + relative_row); const visible = switch (effect) { - .dissolve => layout.dissolveRevealed( + .dissolve => animation.dissolveRevealed( pane.serial, rcol, rrow, @@ -1366,7 +1366,7 @@ test "pointer rejects panel content cells which have not materialized" { const mapped = p.presentation.pointer(p.screen_w, p.screen_h, col, row); try std.testing.expectEqual(visible, mapped != null); if (mapped) |point| - try std.testing.expectEqual(layout.Presentation.CellPosition{ .col = col, .row = row }, point); + try std.testing.expectEqual(Presentation.CellPosition{ .col = col, .row = row }, point); saw_visible = saw_visible or visible; saw_hidden = saw_hidden or !visible; }; @@ -1382,9 +1382,9 @@ test "unchanged content cells remain clickable through data effects" { p.presentation.diffs = try p.gpa.alloc(PanelCellDiff, @as(usize, p.screen_w) * p.screen_h); @memset(p.presentation.diffs, .unchanged); p.presentation.diff_state = .ready; - const box: layout.Box = .{ .x = 2, .y = 2, .w = 20, .h = 4 }; + const box: animation.Box = .{ .x = 2, .y = 2, .w = 20, .h = 4 }; - for ([_]layout.Transition{ .dissolve, .ascii }) |effect| { + for ([_]animation.Transition{ .dissolve, .ascii }) |effect| { p.acknowledgePanelPresentation(&.{.{ .serial = pane.serial, .pane = 0, @@ -1393,7 +1393,7 @@ test "unchanged content cells remain clickable through data effects" { .from = box, .to = box, }}); - try std.testing.expectEqual(layout.Presentation.CellPosition{ .col = 8, .row = 3 }, p.presentation.pointer(p.screen_w, p.screen_h, 8, 3).?); + try std.testing.expectEqual(Presentation.CellPosition{ .col = 8, .row = 3 }, p.presentation.pointer(p.screen_w, p.screen_h, 8, 3).?); } } @@ -1402,7 +1402,7 @@ test "held drag follows acknowledged panels and balances an invisible release" { defer p.deinit(); const pane = p.panes[0].?; const target = layout.panelBox(p.rects[0]); - var track: layout.Track = .{ + var track: animation.Track = .{ .serial = pane.serial, .pane = 0, .phase = .moving, diff --git a/src/ninep/ctl.zig b/src/ninep/ctl.zig index deb64565..a64521e7 100644 --- a/src/ninep/ctl.zig +++ b/src/ninep/ctl.zig @@ -163,7 +163,7 @@ fn writeQuoted(w: *std.Io.Writer, s: []const u8) !void { try w.writeByte('\''); } -pub const pane_text_cap = 7 * 12 + 2 * 256 + 4 + "notcurrent ".len; +pub const pane_text_cap = 7 * 12 + 2 * 256 + 4 + "notcurrent ".len + 48; /// acme's winctlprint: serial, tag length, body length, a reserved zero, the /// dirty flag, then the width in cells, the font and the tab width. Then @@ -186,6 +186,10 @@ pub fn paneText(p: *Pardes, pane: *Pane, buf: []u8) []const u8 { // While a column's or the workspace's tag has the keyboard, no pane does. const current = p.panes[p.active] == pane and !p.header_focus; w.print(" {d:>11} {s} ", .{ config.tab_width, if (current) "current" else "notcurrent" }) catch {}; + // A terminal bound as a REPL ends with its id, `python-a`. + var idbuf: [48]u8 = undefined; + const id = exec_line.replId(&idbuf, pane); + if (id.len > 0) w.print("{s} ", .{id}) catch {}; return w.buffered(); } @@ -196,7 +200,7 @@ const Builtin = builtins.registry.Builtin(); /// Refuses a control message, quoting it the way Plan 9's cmderror does /// (kernel/misc/parse.c:82): `unknown control message "Bogus 3"`. fn refuse(p: *Pardes, req: Req, why: []const u8, line: []const u8) Reply { - const room = p.fs.ename.len - why.len - 3; + const room = p.fs.ename.len -| (why.len + 3); const text = std.fmt.bufPrint(&p.fs.ename, "{s} \"{s}\"", .{ why, line[0..@min(line.len, room)] }) catch why; return tree.failText(req.tag, E.INVAL, text); } @@ -298,7 +302,9 @@ fn writeSettings(p: *Pardes, w: *std.Io.Writer) !void { // Bare, it names the default directory. .dump_dir => if (s.dump_dir.len > 0) try w.print("{s} {s}\n", .{ word, s.dump_dir.get() }) else try w.print("{s}\n", .{word}), .transition => |effect| try w.print("{s} {s}\n", .{ word, if (s.panel_transition == effect) "on" else "off" }), - .scene => |effect| try w.print("{s} {s}\n", .{ word, if (@field(s.scene_effects, @tagName(effect))) "on" else "off" }), + .scene => |effect| if (s.post.level(effect) == 0) try w.print("{s} off\n", .{word}) else try w.print("{s} {d}\n", .{ word, s.post.level(effect) }), + .shader => for (s.post.list()) |entry| if (entry.scene == null) try w.print("{s} {s}\n", .{ word, entry.path.get() }), + .shader_animation => try w.print("{s} {s}\n", .{ word, @tagName(s.shader_animation) }), } } try w.writeAll("LocationsConfig "); @@ -395,7 +401,7 @@ pub fn writeFocus(p: *Pardes, req: Req) Reply { return .{ .tag = req.tag, .written = @intCast(req.data.len) }; } -const e_no_pane = "no such window"; +const e_no_pane = "no such pane"; pub fn readPane(p: *Pardes, req: Req, pane: *Pane) Reply { var buf: [pane_text_cap]u8 = undefined; @@ -662,7 +668,7 @@ test "the root ctl reads the settings as a write takes them, and takes the sessi // its line; the lines before it have taken effect, as in acme. const failed = wr(p, root_ctl, "Verbose on\nMount x\nVerbose off"); try testing.expectEqual(E.IO, failed.errno()); - try testing.expectEqualStrings("Mount name dial: MissingArgument \"Mount x\"", failed.reply.ename); + try testing.expectEqualStrings("Mount name dial: missing argument \"Mount x\"", failed.reply.ename); try testing.expect(p.settings.verbose); try testing.expect(!p.fs.no_prompt); try testing.expectEqual(Status.ok, wr(p, root_ctl, "Verbose off").reply.status); @@ -988,3 +994,25 @@ test "Joincol with no column to the right and Theme with no such theme say so" { const pane = p.panes[p.active].?; try testing.expect(std.mem.indexOf(u8, pane.msg[0..pane.msg_len], "no theme \"drak\"") != null); } + +test "a look that fills a column's stillborn scratch is answered with the scratch already gone" { + const gpa = testing.allocator; + const p = try withFile(gpa, "x\n"); + defer p.deinit(); + var tmp = testing.tmpDir(.{}); + defer tmp.cleanup(); + try tmp.dir.writeFile(testing.io, .{ .sub_path = "f.txt", .data = "file\n" }); + var dir: [4096]u8 = undefined; + const at = dir[0..try tmp.dir.realPath(testing.io, &dir)]; + var line: [4200]u8 = undefined; + // Newcol makes a column of one empty +New; a file looked from it + // joins that column and takes the scratch's place. + try testing.expectEqual(tree.Status.ok, wr(p, @intFromEnum(tree.TopFile.ctl), "Newcol\n").reply.status); + const scratch = p.panes[p.active].?.serial; + try testing.expectEqual(tree.Status.ok, wr(p, Node.of(scratch, .look), try std.fmt.bufPrint(&line, "{s}/f.txt\n", .{at})).reply.status); + try testing.expect(p.paneBySerial(scratch) == null); + var want: [32]u8 = undefined; + const gone = try std.fmt.bufPrint(&want, "{d} ", .{scratch}); + var rows = std.mem.splitScalar(u8, rd(p, @intFromEnum(tree.TopFile.index), 0, 4096).bytes, '\n'); + while (rows.next()) |row| try testing.expect(!std.mem.startsWith(u8, row, gone)); +} diff --git a/src/ninep/events.zig b/src/ninep/events.zig index 9ebb4bc1..ffdea95b 100644 --- a/src/ninep/events.zig +++ b/src/ninep/events.zig @@ -468,7 +468,7 @@ pub fn notePtyOutput(p: *Pardes, id: usize, bytes: []const u8) void { p.fs.news = true; } -const EventRecord = struct { action: Action, q0: u32, q1: u32, text: ?[]const u8 = null }; +const EventRecord = struct { origin: u8, action: Action, q0: u32, q1: u32, text: ?[]const u8 = null }; const EventReader = struct { data: []const u8, @@ -478,6 +478,7 @@ const EventReader = struct { if (er.i >= er.data.len) return null; var i = er.i; if (i + 2 > er.data.len) return null; + const origin = er.data[i]; i += 1; const action = Action.fromChar(er.data[i]) orelse return null; i += 1; @@ -497,7 +498,7 @@ const EventReader = struct { } if (i >= er.data.len or er.data[i] != '\n') return null; er.i = i + 1; - return .{ .action = action, .q0 = q0, .q1 = q1, .text = text }; + return .{ .origin = origin, .action = action, .q0 = q0, .q1 = q1, .text = text }; } }; @@ -539,7 +540,12 @@ pub fn writeEvent(p: *Pardes, req: Req, id: usize) Reply { const said = if (r.q0 == r.q1) r.text orelse whole[lo..hi] else whole[lo..hi]; const text = p.scratch.allocator().dupe(u8, said) catch continue; switch (r.action) { - .body_exec, .tag_exec => _ = exec.execute(p, live, text), + // A body's click written back is done as the click would have + // been (acme's xfideventwrite, xfid.c:842-844): a REPL bound for + // it takes it. One that came from a write to exec (`F`) was + // never a click, and runs as the command it was. + .body_exec => _ = exec.executeFrom(p, live, text, r.origin != 'F'), + .tag_exec => _ = exec.execute(p, live, text), .body_look, .tag_look => look.lookAt(p, live, text), else => unreachable, } @@ -871,7 +877,7 @@ test "a refused or failed write is an err record in the log, saying which file a _ = wr(p, @intFromEnum(tree.TopFile.ctl), "Bogus"); try testing.expectEqualStrings("err - ctl: unknown control message \"Bogus\"\n", next.record(p, f, frozen)); _ = wr(p, @intFromEnum(tree.TopFile.focus), "99999"); - try testing.expectEqualStrings("err - focus: no such window\n", next.record(p, f, frozen)); + try testing.expectEqualStrings("err - focus: no such pane\n", next.record(p, f, frozen)); // A write that succeeds says nothing. _ = wr(p, Node.of(serial, .addr), "#0"); try testing.expectEqual(Status.again, call(p, .{ .tag = 5, .op = .read, .node = log, .handle = f, .off = frozen, .size = 4096 }).reply.status); diff --git a/src/ninep/pane.zig b/src/ninep/pane.zig index 77be80c6..d2b2a791 100644 --- a/src/ninep/pane.zig +++ b/src/ninep/pane.zig @@ -507,7 +507,7 @@ fn writeRange(req: Req, pane: *Pane, file: PaneFile) Reply { fn writeFlag(p: *Pardes, req: Req, pane: *Pane, file: PaneFile) Reply { const word = std.mem.trim(u8, req.data, " \t\r\n"); - if (!std.mem.eql(u8, word, "1") and !std.mem.eql(u8, word, "0")) return Reply.fail(req.tag, E.INVAL); + if (!std.mem.eql(u8, word, "1") and !std.mem.eql(u8, word, "0")) return tree.failText(req.tag, E.INVAL, "takes 1 or 0"); const on = word[0] == '1'; const pf = &pane.fs; switch (file) { @@ -873,8 +873,10 @@ test "the flag files read and write the state acme kept behind ctl verbs" { for ([_]u64{ dirty, mark, scroll }) |node| { try testing.expectEqual(@as(u64, 2), call(p, .{ .tag = 1, .op = .getattr, .node = node }).reply.attr.size); - for ([_][]const u8{ "", "yes", "2", "0 1", "true" }) |bad| + for ([_][]const u8{ "", "yes", "2", "0 1", "true" }) |bad| { try testing.expectEqual(E.INVAL, wr(p, node, bad).errno()); + try testing.expectEqualStrings("takes 1 or 0", wr(p, node, bad).reply.ename); + } } try testing.expectEqualStrings("0\n", rd(p, dirty, 0, 8).bytes); diff --git a/src/ninep/pty.zig b/src/ninep/pty.zig index 88dafdfc..3599b612 100644 --- a/src/ninep/pty.zig +++ b/src/ninep/pty.zig @@ -43,7 +43,7 @@ pub fn writeCtl(p: *Pardes, req: Req, id: usize) Reply { while (it.next()) |raw| { const line = std.mem.trim(u8, raw, " \t\r"); if (line.len == 0) continue; - if (!verb(p, id, line, apply)) return tree.failText(req.tag, E.INVAL, tree.e_bad_ctl); + if (!verb(p, id, line, apply)) return tree.failText(req.tag, E.INVAL, e_bad_pty_ctl); } } return .{ .tag = req.tag, .written = @intCast(req.data.len) }; @@ -92,7 +92,8 @@ pub fn readStatus(p: *Pardes, req: Req, id: usize, pane: *Pane) Reply { // Busy is what a run written now would be told: a command is running // or a line is typed at the prompt. Before the shell's first prompt a // run waits for it rather than answer busy, so that is not busy. - const marks = if (pane.terminal) |state| &state.stream.handler else null; + // A build with no terminal panes (the board) has no marks to read. + const marks = if (comptime !pardes.panes.Terminal.enabled) null else if (pane.terminal) |state| &state.stream.handler else null; const busy = p.hostTtyTaken(id) or (!pane.fs.unmarked and (waitingRun(p, pane) != null or (if (marks) |m| m.prompts > 0 and (m.phase != .input or !pardes.panes.Terminal.promptInputEmpty(pane)) else false))); const out = p.fs.stage(p.gpa); @@ -162,10 +163,14 @@ pub fn writeRun(p: *Pardes, req: Req, id: usize, pane: *Pane) Reply { if (std.mem.trim(u8, line, " \t").len == 0) return tree.failText(req.tag, E.INVAL, e_bad_line); if (line.len == 0) return tree.failText(req.tag, E.INVAL, e_bad_line); for (line) |c| if (c < ' ' and c != '\t') return tree.failText(req.tag, E.INVAL, e_bad_line); + if (comptime !pardes.panes.Terminal.enabled) return tree.failText(req.tag, E.INVAL, e_bad_line); const pf = &pane.fs; const state = pane.terminal orelse return tree.failText(req.tag, E.INVAL, e_bad_line); const marks = &state.stream.handler; - if (pf.unmarked) { + if (pane.command != null) { + // Its child is the command, and no shell is there to take a line. + answer(p, slot, "error {s}", .{if (pane.command_done) "command done; not a shell" else "a command runs here, not a shell"}); + } else if (pf.unmarked) { answer(p, slot, "error no prompt marks", .{}); } else if (waitingRun(p, pane) != null or (marks.prompts > 0 and (marks.phase != .input or !pardes.panes.Terminal.promptInputEmpty(pane) or p.hostTtyTaken(id)))) @@ -335,6 +340,7 @@ fn waitingRun(p: *Pardes, pane: *Pane) ?*Run { } const e_bad_line = "bad command line"; +const e_bad_pty_ctl = tree.e_bad_ctl ++ "; takes winsize COLS ROWS, sig INT|TERM|HUP|QUIT|KILL, or exec"; pub fn readData(p: *Pardes, req: Req, pf: *pane_files.State) Reply { if (pf.pty_out.empty()) return .{ .tag = req.tag, .status = .again }; @@ -505,6 +511,7 @@ test "every pty/ctl verb, and every refusal" { }) |bad| { const a = wr(p, ctl, bad); try testing.expectEqual(E.INVAL, a.errno()); + try testing.expectEqualStrings(e_bad_pty_ctl, a.reply.ename); // names what it takes try testing.expect(a.winsize == null); try testing.expect(a.signal == null); try testing.expect(!a.spawned); @@ -743,6 +750,25 @@ test "run answers how its command ended once the shell is back at a prompt" { for (p.fs.opens) |o| try testing.expect(o.node == 0); } +test "run on a command pane says no shell is there" { + const gpa = testing.allocator; + const p = try withTerm(gpa); + defer p.deinit(); + const node = Node.of(serialOf(p), .pty_run); + const pane = p.panes[0].?; + pane.command = try gpa.dupe(u8, "make"); + for ([_]struct { bool, []const u8 }{ + .{ false, "error a command runs here, not a shell\n" }, + .{ true, "error command done; not a shell\n" }, + }) |case| { + pane.command_done = case[0]; + const o = call(p, .{ .tag = 1, .op = .open, .node = node }); + _ = call(p, .{ .tag = 2, .op = .write, .node = node, .handle = o.reply.handle, .data = "ls\n" }); + try testing.expectEqualStrings(case[1], call(p, .{ .tag = 3, .op = .read, .node = node, .handle = o.reply.handle, .size = 64 }).bytes); + _ = call(p, .{ .tag = 4, .op = .release, .node = node, .handle = o.reply.handle }); + } +} + test "a run's answer says cut when its output's start is gone, and reads a bounded tail" { const gpa = testing.allocator; const p = try withTerm(gpa); diff --git a/src/ninep/screen.zig b/src/ninep/screen.zig index bc2788ec..88947d0d 100644 --- a/src/ninep/screen.zig +++ b/src/ninep/screen.zig @@ -245,7 +245,7 @@ test "screen snapshots preserve rendered cells and styles until their handle is test "screen inspection preserves acknowledged presentation and the next real frame" { const gpa = testing.allocator; - for (std.enums.values(pardes.layout.Transition)) |transition| { + for (std.enums.values(pardes.animation.Transition)) |transition| { errdefer std.debug.print("screen inspection during {s}\n", .{@tagName(transition)}); const control = try withFile(gpa, "const value = 1;\n"); defer control.deinit(); diff --git a/src/panes.zig b/src/panes.zig index 7114b68e..8049da4e 100644 --- a/src/panes.zig +++ b/src/panes.zig @@ -113,6 +113,9 @@ pub const Pane = struct { /// shown `exit ?`). command_done: bool = false, command_status: ?u8 = null, + /// Its pty is still open: a job the command left in the background may + /// be printing to it, and a reuse would hang it up. + command_pty: bool = false, /// The shell a terminal runs when it is not the configured one (`Tty /// fish`), owned. shell: ?[]u8 = null, diff --git a/src/pardes.zig b/src/pardes.zig index 187f3ed3..f559b125 100644 --- a/src/pardes.zig +++ b/src/pardes.zig @@ -1,5 +1,7 @@ const std = @import("std"); pub const layout = @import("layout.zig"); +pub const animation = @import("animation.zig"); +pub const Presentation = @import("Presentation.zig"); const uucode = @import("uucode"); const vaxis = @import("vaxis"); pub const modal = @import("modal.zig"); @@ -16,6 +18,7 @@ pub const mouse = @import("mouse.zig"); pub const normal = @import("normal.zig"); pub const edit = @import("edit.zig"); pub const body_layer = @import("body_layer.zig"); +pub const draw = @import("draw.zig"); pub const Messages = @import("Messages.zig"); pub const Registers = @import("Registers.zig"); pub const Macro = @import("Macro.zig"); @@ -37,6 +40,9 @@ pub const NativePlacement = @import("surface.zig").NativePlacement; pub const ImagePatch = @import("surface.zig").ImagePatch; pub const ImagePlace = @import("surface.zig").ImagePlace; pub const Surface = @import("surface.zig").Surface; +pub const Region = @import("surface.zig").Region; +pub const Chrome = @import("surface.zig").Chrome; +pub const MAX_REGIONS = @import("surface.zig").MAX_REGIONS; pub const builtins = @import("builtins.zig"); const limits = memory.limits; const selection_pipe = @import("selection_pipe.zig"); @@ -245,21 +251,17 @@ pub const Pane = panes.Pane; const Text = panes.Text; pub const MAX_PANES = 16; -pub const BodyLayer = @import("body_layer.zig").Layer; -pub const RowMetrics = @import("body_layer.zig").Metrics; -pub const TagLayer = @import("tag_layer.zig").Layer; -pub const TagHit = @import("tag_layer.zig").Hit; -pub const TagKind = @import("tag_layer.zig").Kind; -/// Panes, then columns, then the workspace bar, then each pane's notice bands. +pub const Layer = @import("Layer.zig"); +pub const RowMetrics = Layer.Metrics; +pub const TagHit = Layer.TagHit; +pub const TagKind = Layer.Kind; /// A tag shows at most this many lines; past them it is cut, like a line /// too long for its width. pub const MAX_TAG_ROWS = 8; -pub const MAX_TAG_LAYERS = MAX_PANES + MAX_COLS + 1 + MAX_PANES * Pane.Notices.max + (MAX_PANES + MAX_COLS + 1) * (MAX_TAG_ROWS - 1); +/// Panes, then columns, then the workspace bar, then each pane's notice +/// bands: a band to a tag, however many lines it has. +pub const MAX_TAG_LAYERS = MAX_PANES + MAX_COLS + 1 + MAX_PANES * Pane.Notices.max; pub const NOTICE_LAYER_BASE = MAX_PANES + MAX_COLS + 1; -/// Where the layers for a pane tag's second and later lines start. -pub const TAG_LINE_LAYER_BASE = NOTICE_LAYER_BASE + MAX_PANES * Pane.Notices.max; -/// ...and those of a column's (by index) or the workspace's (after them). -pub const HEADER_LINE_LAYER_BASE = TAG_LINE_LAYER_BASE + MAX_PANES * (MAX_TAG_ROWS - 1); pub const PDF_PAGE_GAP_PX = panes.Pdf.page_gap_px; pub const MAX_COLS = 6; const column_weight_unit = layout.column_weight_unit; @@ -286,7 +288,7 @@ pub fn topbarPaneBorderPixels(cell_h: u32, tagline_h: u32) u32 { return @min(@as(u32, config.gui_topbar_pane_border_px), spare * 2); } -pub fn taglineOriginCol(p: *const Pardes, col: u16, row: u16, track: ?layout.Track) f32 { +pub fn taglineOriginCol(p: *const Pardes, col: u16, row: u16, track: ?animation.Track) f32 { if (row < p.topBarHeight()) return 0; if (row < p.topBarHeight() + p.columnBarHeight()) { for (p.col_x[0..p.ncol], p.col_w[0..p.ncol]) |x, w| @@ -317,7 +319,7 @@ pub fn taglineOriginColForFrame(p: *const Pardes, col: u16, row: u16) f32 { } test "paint order is moving, then opening, then closing tombstones on top" { - const Track = layout.Track; + const Track = animation.Track; // Deliberately interleaved on the way in: the phases are what order the // output, not the slot they happened to occupy. const live = [_]?Track{ @@ -331,7 +333,7 @@ test "paint order is moving, then opening, then closing tombstones on top" { .{ .serial = 16, .pane = 2, .phase = .closing, .effect = .vertical }, }; var out: [8]Track = undefined; - const len = layout.paintOrder(&live, &closing, &out); + const len = animation.paintOrder(&live, &closing, &out); var serials: [8]u32 = undefined; for (out[0..len], 0..) |track, i| serials[i] = track.serial; @@ -340,7 +342,7 @@ test "paint order is moving, then opening, then closing tombstones on top" { // A host's array is fixed-size and the core's is not its business: writing // past it would be a buffer overrun in whichever shell had the smaller one. var tight: [2]Track = undefined; - try std.testing.expectEqual(@as(usize, 2), layout.paintOrder(&live, &closing, &tight)); + try std.testing.expectEqual(@as(usize, 2), animation.paintOrder(&live, &closing, &tight)); try std.testing.expectEqual(@as(u32, 12), tight[0].serial); try std.testing.expectEqual(@as(u32, 15), tight[1].serial); } @@ -462,6 +464,7 @@ test { _ = @import("colors.zig"); _ = @import("surface.zig"); _ = @import("body_layer.zig"); + _ = @import("draw.zig"); _ = @import("tag_layer.zig"); } @@ -556,7 +559,7 @@ test "Detach asks the frontend to leave, and says so when there is nothing to le p.perform(.{ .detach = asked }); const pane = p.panes[0].?; - try std.testing.expectEqualStrings("detach: NotAttached", pane.msg[0..pane.msg_len]); + try std.testing.expectEqualStrings("detach: not attached", pane.msg[0..pane.msg_len]); try std.testing.expect(!p.quit); } @@ -585,18 +588,10 @@ test "startup config runs builtin lines in order and isolates bad lines" { }; } -test "scene effects keep the idle frontend animation clock active" { +test "a post chain keeps no core clock running: the shell animates it" { const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true }); defer p.deinit(); - try std.testing.expect(!p.animationActive()); - - p.settings.scene_effects.crt = true; - try std.testing.expect(p.animationActive()); - p.settings.scene_effects = .{ .ripple = true }; - try std.testing.expect(p.animationActive()); - p.settings.scene_effects = .{ .glitch = true }; - try std.testing.expect(p.animationActive()); - p.settings.scene_effects = .{}; + try std.testing.expect(p.settings.post.set(.crt, "", true)); try std.testing.expect(!p.animationActive()); } @@ -788,7 +783,7 @@ test "TreeContext tag style preserves message rows and its opt-out survives rest try std.testing.expectEqual(full_height, p.surface.body_layers[0].viewport.h); const r = p.rects[0]; const band = for (p.surface.tagLayers()) |*layer| { - if (layer.cols != 0 and layer.kind == .notice) break layer; + if (layer.rows != 0 and layer.kind == .notice) break layer; } else return error.NoNoticeBand; try std.testing.expectEqual(p.bodyTop(pane, r), band.viewport.y); try std.testing.expectEqual(p.surface.body_layers[0].viewport.y, band.viewport.y); @@ -1197,7 +1192,7 @@ test "first document fallback splits like Tty from the originating pane" { const free = p.freeSlot().?; const doc = try p.openTutorView(free); exec.placeDoc(p, from, free, doc); - exec.spawnTty(tty, from); + _ = exec.spawnTty(tty, from); p.sync(); tty.sync(); try std.testing.expectEqual(@as(usize, 2), p.ncol); @@ -1365,6 +1360,33 @@ test "Exec in a terminal whose tty is taken runs as a command pane instead of ty try std.testing.expect(spawned); } +test "a command of several lines keeps its tag one row, and its echo does not staircase" { + const gpa = std.testing.allocator; + const p = try Pardes.init(gpa, .{ .tty_only = true, .cols = 100, .rows = 30 }); + defer p.deinit(); + while (p.nextEffect()) |_| {} + const doc = try p.newDocPane(1); + doc.image = .{ .path = try gpa.dupe(u8, "/tmp/pic.ppm") }; + const two = "def greet(name):\n return name\n\nprint(greet(\"x\"))\n"; + const dst = exec.execute(p, 1, two) orelse return error.NoCommandPane; + while (p.nextEffect()) |_| {} + const pane = p.panes[dst].?; + const prefix = try tagline.tagPrefix(p, pane); + try std.testing.expect(std.mem.indexOfScalar(u8, prefix, '\n') == null); + try std.testing.expect(std.mem.indexOf(u8, prefix, "(def greet(name):...) running") != null); + // Rendered without a panic, however the tag wraps. + var frame = std.heap.ArenaAllocator.init(gpa); + defer frame.deinit(); + _ = try p.render(frame.allocator()); + p.update(.{ .exited = .{ .pane = @intCast(dst), .status = 0 } }); + _ = exec.execute(p, 1, two); + while (p.nextEffect()) |_| {} + _ = try p.render(frame.allocator()); + const body = try panes.Terminal.screenTextAlloc(pane, gpa); + defer gpa.free(body); + try std.testing.expect(std.mem.indexOf(u8, body, "% def greet(name):\n return name") != null); +} + test "a spawn is for the pane it was made for, not whatever took the slot since" { const gpa = std.testing.allocator; const p = try Pardes.init(gpa, .{ .tty_only = true }); @@ -1423,6 +1445,11 @@ test "a REPL bound for a language takes the exec made on a body in it; tags, Exe return to[pane][0..len[pane]]; } }; + // The programs the REPLs run hold their terminals' ttys. + var host: FakeTtyQuery = .{}; + host.install(p); + host.taken[1] = true; + host.taken[2] = true; // Only a terminal is a REPL; a language's name is the syntax table's. try std.testing.expect(p.executeBuiltinLine(0, "Repl python")); try std.testing.expect(file.repl == null); @@ -1430,23 +1457,50 @@ test "a REPL bound for a language takes the exec made on a body in it; tags, Exe try std.testing.expect(p.panes[1].?.repl == null); try std.testing.expect(std.mem.indexOf(u8, p.panes[1].?.msg[0..p.panes[1].?.msg_len], "python") != null); try std.testing.expect(p.executeBuiltinLine(1, "Repl python")); - try std.testing.expect(p.executeBuiltinLine(1, "Repl python")); // again: no change + // again, as a code fence may name it: no change + try std.testing.expect(p.executeBuiltinLine(1, "Repl PY")); var idbuf: [48]u8 = undefined; try std.testing.expectEqualStrings("python-a", exec.replId(&idbuf, p.panes[1].?)); try std.testing.expect(std.mem.endsWith(u8, try tagline.tagPrefix(p, p.panes[1].?), " python-a")); Sent.drain(p); // A click on the file's body, a single word: typed into the REPL. - p.exec_from_body = true; - try std.testing.expectEqual(@as(?usize, 1), exec.execute(p, 0, "ls")); + try std.testing.expectEqual(@as(?usize, 1), exec.executeFrom(p, 0, "ls", true)); Sent.drain(p); try std.testing.expectEqualStrings("ls\r", Sent.said(1)); try std.testing.expect(!Sent.spawned); try std.testing.expect(file.msg_sent); try std.testing.expectEqualStrings("\u{2192} python-a", file.msg[0..file.msg_len]); + // A body's click written back to event is done as the click: sent. A + // line written to exec came back as F and runs as the command it was. + { + const th = @import("ninep/testing.zig"); + const event = ctlfs.Node.of(file.serial, .event); + const h = th.call(p, .{ .tag = 1, .op = .open, .node = event }).reply.handle; + defer _ = th.call(p, .{ .tag = 2, .op = .release, .node = event, .handle = h }); + // The 9P harness performs the effects: what it wrote is its answer's. + const sent = th.wr(p, event, "MX0 8\n"); + try std.testing.expectEqualStrings("print(1)\r", sent.pty_buf[0..sent.pty_len]); + const ran = th.wr(p, event, "FX0 0 2 2 ls\n"); + try std.testing.expect(ran.pty_len == 0 and ran.spawned); + // The pane's ctl line ends with the id it is bound as. + var line: [ctlfs.ctl.pane_text_cap]u8 = undefined; + try std.testing.expect(std.mem.endsWith(u8, ctlfs.ctl.paneText(p, p.panes[1].?, &line), " python-a ")); + } + // What is sent is plain text: CRLF is LF, no ESC or other control. + _ = exec.executeFrom(p, 0, "a = 1\r\nb = \x1b[201~2", true); + Sent.drain(p); + try std.testing.expectEqualStrings("a = 1\rb = [201~2\r", Sent.said(1)); + // Several selections executed at once: each is sent, not the first. + { + const text = try edit.flatSurface(p, &file.body); + file.body.setRanges(text, &.{ .{ .anchor = 0, .head = 8 }, .{ .anchor = 9, .head = 11 } }, &.{}, 0, true); + try std.testing.expect(exec.chordEachSel(p, file, .Exec)); + Sent.drain(p); + try std.testing.expectEqualStrings("print(1)\rls\r", Sent.said(1)); + } // Its own body too. - p.exec_from_body = true; - try std.testing.expectEqual(@as(?usize, 1), exec.execute(p, 1, "x = 1")); + try std.testing.expectEqual(@as(?usize, 1), exec.executeFrom(p, 1, "x = 1", true)); Sent.drain(p); try std.testing.expectEqualStrings("x = 1\r", Sent.said(1)); @@ -1457,8 +1511,7 @@ test "a REPL bound for a language takes the exec made on a body in it; tags, Exe try std.testing.expect(p.executeBuiltinLine(0, "Exec ls")); Sent.drain(p); try std.testing.expect(Sent.spawned and Sent.len[1] == 0); - p.exec_from_body = true; - _ = exec.execute(p, 0, "@`ls`"); + _ = exec.executeFrom(p, 0, "@`ls`", true); Sent.drain(p); try std.testing.expect(Sent.spawned and Sent.len[1] == 0); @@ -1466,19 +1519,38 @@ test "a REPL bound for a language takes the exec made on a body in it; tags, Exe try std.testing.expect(p.executeBuiltinLine(2, "Repl python")); try std.testing.expectEqualStrings("python-b", exec.replId(&idbuf, p.panes[2].?)); Sent.drain(p); - p.exec_from_body = true; - try std.testing.expectEqual(@as(?usize, null), exec.execute(p, 0, "print(2)")); + try std.testing.expectEqual(@as(?usize, null), exec.executeFrom(p, 0, "print(2)", true)); try std.testing.expectEqual(Pane.Prompt.repl_choice, file.prompt); try std.testing.expect(std.mem.indexOf(u8, file.promptText().?, "a b") != null); p.update(.{ .key = .{ .cp = 'b' } }); Sent.drain(p); try std.testing.expectEqualStrings("print(2)\r", Sent.said(2)); try std.testing.expect(Sent.len[1] == 0 and file.prompt == .none); - p.exec_from_body = true; - _ = exec.execute(p, 0, "print(3)"); + _ = exec.executeFrom(p, 0, "print(3)", true); p.update(.{ .key = .{ .cp = Key.escape } }); Sent.drain(p); try std.testing.expect(Sent.len[1] == 0 and Sent.len[2] == 0); + // The pane a letter offered is the one it answers for: unbound while + // the question stood, it is sent nothing, and that is said. + _ = exec.executeFrom(p, 0, "print(4)", true); + try std.testing.expect(p.executeBuiltinLine(2, "Repl -")); + p.update(.{ .key = .{ .cp = 'b' } }); + Sent.drain(p); + try std.testing.expect(Sent.len[1] == 0 and Sent.len[2] == 0); + try std.testing.expectEqualStrings("Repl: the REPL chosen is gone; nothing sent", file.msg[0..file.msg_len]); + try std.testing.expect(p.executeBuiltinLine(2, "Repl python")); + try std.testing.expectEqualStrings("python-b", exec.replId(&idbuf, p.panes[2].?)); + + // A REPL whose program has left (Ctrl-D: the shell has the tty) is + // sent nothing, and nothing runs: it says so. + host.taken[1] = false; + host.taken[2] = false; + _ = exec.executeFrom(p, 0, "import os", true); + Sent.drain(p); + try std.testing.expect(Sent.len[1] == 0 and Sent.len[2] == 0 and !Sent.spawned); + try std.testing.expect(std.mem.indexOf(u8, file.msg[0..file.msg_len], "no program running") != null); + host.taken[1] = true; + host.taken[2] = true; // Unbound, its letter is free again; bare, it says what it is. try std.testing.expect(p.executeBuiltinLine(1, "Repl -")); @@ -1487,17 +1559,62 @@ test "a REPL bound for a language takes the exec made on a body in it; tags, Exe try std.testing.expectEqualStrings("python-a", exec.replId(&idbuf, p.panes[1].?)); try std.testing.expect(p.executeBuiltinLine(2, "Repl")); try std.testing.expectEqualStrings("Repl: python-b", p.panes[2].?.msg[0..p.panes[2].?.msg_len]); + + // A command pane is a REPL while its command runs: done, it is none, + // and a done one cannot be bound. A document pane is no terminal. + const cmd = p.freeSlot().?; + _ = try p.newCommand(cmd, "", "python3"); + try std.testing.expect(p.executeBuiltinLine(cmd, "Repl python")); + try std.testing.expect(p.panes[cmd].?.repl != null); + p.update(.{ .exited = .{ .pane = @intCast(cmd), .status = 0 } }); + try std.testing.expect(p.panes[cmd].?.repl == null); + try std.testing.expect(p.executeBuiltinLine(cmd, "Repl python")); + try std.testing.expect(p.panes[cmd].?.repl == null); + const doc_slot = p.freeSlot().?; + const doc = try p.newDocPane(doc_slot); + try std.testing.expect(p.executeBuiltinLine(doc_slot, "Repl python")); + try std.testing.expect(doc.repl == null); +} + +test "a restored terminal's tag names neither the REPL it was nor the shell it had" { + const gpa = std.testing.allocator; + const p = try Pardes.init(gpa, .{ .tty_only = true }); + defer p.deinit(); + while (p.nextEffect()) |_| {} + p.acknowledgeShell(0, "/usr/bin/fish", true); + var host: FakeTtyQuery = .{}; + host.install(p); + try std.testing.expect(p.executeBuiltinLine(0, "Repl python")); + try dump.dumpState(p); + const restored = try dump.restore(p, p.dump_out.?, "test"); + defer restored.deinit(); + const pane = restored.panes[0].?; + try std.testing.expect(pane.repl == null and pane.tag.own == null); + const shown = try tagline.tagText(restored, restored.scratch.allocator(), pane); + try std.testing.expect(std.mem.indexOf(u8, shown, "python-a") == null); + try std.testing.expect(std.mem.indexOf(u8, shown, "Tty+fish") == null); } test "Tty+fish, one word a tag can hold, opens a terminal on that shell" { const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true }); defer p.deinit(); while (p.nextEffect()) |_| {} - try std.testing.expect(p.executeBuiltinLine(0, "Tty+fish")); + // sh, the one shell every host has. + try std.testing.expect(p.executeBuiltinLine(0, "Tty+sh")); try std.testing.expect(p.active != 0); - try std.testing.expectEqualStrings("fish", p.panes[p.active].?.shell.?); - p.acknowledgeShell(p.active, "/usr/bin/fish", true); - try std.testing.expect(std.mem.startsWith(u8, tagline.curTail(p.panes[p.active].?), " Tty+fish ")); + try std.testing.expectEqualStrings("sh", p.panes[p.active].?.shell.?); + p.acknowledgeShell(p.active, "/bin/sh", false); + try std.testing.expect(std.mem.startsWith(u8, tagline.curTail(p.panes[p.active].?), " Tty+sh ")); + p.active = 0; + // A shell that is not there is said, not quietly replaced, and the + // pane that asked gets no shell of its own. + const before = p.active; + const caller = p.panes[0].?; + try std.testing.expect(p.executeBuiltinLine(0, "Tty /nonexistent")); + try std.testing.expect(p.active == before and caller.shell == null); + try std.testing.expect(std.mem.indexOf(u8, caller.msg[0..caller.msg_len], "no shell \"/nonexistent\"") != null); + try std.testing.expect(p.executeBuiltinLine(0, "Tty fsh-not-a-shell")); + try std.testing.expect(caller.shell == null); // Only a word that says so splits at `+`: `Dump+x.zon` is no Dump. try std.testing.expect(!p.executeBuiltinLine(0, "Dump+x.zon")); try std.testing.expect(!p.executeBuiltinLine(0, "Msg+hello")); @@ -1515,6 +1632,12 @@ test "a command pane shows how its command ended, and the next command there run const dst = exec.execute(p, 1, "make -j8") orelse return error.NoCommandPane; while (p.nextEffect()) |_| {} const pane = p.panes[dst].?; + // Its first command is echoed as every later one is. + { + const first = try panes.Terminal.screenTextAlloc(pane, gpa); + defer gpa.free(first); + try std.testing.expect(std.mem.startsWith(u8, first, "% make -j8")); + } var frame = std.heap.ArenaAllocator.init(gpa); defer frame.deinit(); try std.testing.expect(std.mem.endsWith(u8, try tagline.tagPrefix(p, pane), "(make -j8) running")); @@ -1523,10 +1646,16 @@ test "a command pane shows how its command ended, and the next command there run try std.testing.expect(other != dst); while (p.nextEffect()) |_| {} p.update(.{ .output = .{ .pane = @intCast(dst), .bytes = "compiled\r\n" } }); - // Its output ending is not its end: that is its child's exit. - p.update(.{ .eof = .{ .pane = @intCast(dst) } }); - try std.testing.expect(p.panes[dst] == pane and !pane.command_done); + // Its exit comes first, a job it left still printing: done, and not + // the next command's until its pty closes. p.update(.{ .exited = .{ .pane = @intCast(dst), .status = 2 } }); + try std.testing.expect(pane.command_done and pane.command_pty); + const busy = exec.execute(p, 1, "true") orelse return error.NoCommandPane; + try std.testing.expect(busy != dst); + while (p.nextEffect()) |_| {} + // Its output ending: now it may be reused. + p.update(.{ .eof = .{ .pane = @intCast(dst) } }); + try std.testing.expect(p.panes[dst] == pane and !pane.command_pty); try std.testing.expect(p.panes[dst] == pane); try std.testing.expect(pane.command_done); try std.testing.expect(std.mem.endsWith(u8, try tagline.tagPrefix(p, pane), "(make -j8) exit 2")); @@ -1564,7 +1693,10 @@ test "a command pane shows how its command ended, and the next command there run const log = try ctlfs.events.freezeLog(p); defer gpa.free(log.bytes); var want: [64]u8 = undefined; - try std.testing.expect(std.mem.indexOf(u8, log.bytes, try std.fmt.bufPrint(&want, "run {d} make\n", .{pane.serial})) != null); + // The whole line, after the `new` of the pane it runs in. + const ran = std.mem.indexOf(u8, log.bytes, try std.fmt.bufPrint(&want, "run {d} make -j8\n", .{pane.serial})) orelse return error.NoRunRecord; + const made = std.mem.indexOf(u8, log.bytes, try std.fmt.bufPrint(&want, "new {d} ", .{pane.serial})) orelse return error.NoNewRecord; + try std.testing.expect(made < ran); try std.testing.expect(std.mem.indexOf(u8, log.bytes, try std.fmt.bufPrint(&want, "exit {d} 2\n", .{pane.serial})) != null); // A signal for a pane is not performed on whoever takes its slot. const Count = struct { @@ -1801,14 +1933,14 @@ test "owned cwd preserves long paths aliases and failed updates" { try std.testing.expect(p.panes[free] == null); exec.saveTo(p, 0, "file.txt"); try std.testing.expectEqual(effects, p.effects_len); - try std.testing.expect(std.mem.indexOf(u8, pane.msg[0..pane.msg_len], "PathTooLong") != null); + try std.testing.expect(std.mem.indexOf(u8, pane.msg[0..pane.msg_len], "path too long") != null); const current = pane.cwdSlice(); allocator.fail_index = allocator.alloc_index; p.setCwd(0, "/replacement"); try std.testing.expectEqual(current.ptr, pane.cwdSlice().ptr); try std.testing.expectEqualStrings(&path, pane.cwdSlice()); - try std.testing.expect(std.mem.indexOf(u8, pane.msg[0..pane.msg_len], "OutOfMemory") != null); + try std.testing.expect(std.mem.indexOf(u8, pane.msg[0..pane.msg_len], "out of memory") != null); allocator.fail_index = std.math.maxInt(usize); p.setCwd(0, "/replacement"); try std.testing.expectEqualStrings("/replacement", pane.cwdSlice()); @@ -2359,7 +2491,7 @@ test "a builtin that needs a pane reports capacity failure when every slot is fu }; const help = std.meta.stringToEnum(Builtin, "Help") orelse return error.MissingHelpBuiltin; exec.runBuiltin(p, help, 0, "", null); - try std.testing.expect(std.mem.indexOf(u8, p.panes[0].?.msg[0..p.panes[0].?.msg_len], "help: NoPaneSlots") != null); + try std.testing.expect(std.mem.indexOf(u8, p.panes[0].?.msg[0..p.panes[0].?.msg_len], "help: no pane slots") != null); } test "Font keeps requested and acknowledged faces as separate plain state" { @@ -2393,7 +2525,7 @@ test "Font keeps requested and acknowledged faces as separate plain state" { try std.testing.expectEqualStrings(installed[0].path, request); try std.testing.expect(p.settings.font.pending); try std.testing.expect(p.takeFontRequest() == null); - const fake_track: layout.Track = .{ + const fake_track: animation.Track = .{ .serial = p.panes[p.active].?.serial, .pane = @intCast(p.active), .effect = .slide, @@ -2499,7 +2631,7 @@ test "restored sessions animate layout changes after bootstrap" { source.dump_out.?, ); defer restored.deinit(); - try std.testing.expectEqual(layout.Transition.slide, restored.settings.panel_transition); + try std.testing.expectEqual(animation.Transition.slide, restored.settings.panel_transition); try std.testing.expect(!restored.animationActive()); var frame: std.heap.ArenaAllocator = .init(std.testing.allocator); @@ -3464,8 +3596,8 @@ test "layout commits publish finite tracks only for changed panes" { try std.testing.expect(p.presentation.tracks[1] == null); try std.testing.expect(p.presentation.tracks[0] != null); try std.testing.expect(p.presentation.tracks[2] != null); - try std.testing.expectEqual(layout.Phase.moving, p.presentation.tracks[0].?.phase); - try std.testing.expectEqual(layout.Phase.opening, p.presentation.tracks[2].?.phase); + try std.testing.expectEqual(animation.Phase.moving, p.presentation.tracks[0].?.phase); + try std.testing.expectEqual(animation.Phase.opening, p.presentation.tracks[2].?.phase); try std.testing.expectEqual(untouched, p.rects[1]); try std.testing.expect(p.animationActive()); @@ -3474,7 +3606,7 @@ test "layout commits publish finite tracks only for changed panes" { const surface = try p.render(frame.allocator()); try std.testing.expectEqual(@as(usize, 2), surface.panelTracks().len); - for (0..layout.Transition.slide.frames()) |_| p.update(.tick); + for (0..animation.Transition.slide.frames()) |_| p.update(.tick); try std.testing.expect(!p.animationActive()); _ = frame.reset(.retain_capacity); try std.testing.expectEqual(@as(usize, 0), (try p.render(frame.allocator())).panelTracks().len); @@ -3513,9 +3645,9 @@ test "vertical close samples only a canonical baseline containing that pane" { defer p.deinit(); var frame = std.heap.ArenaAllocator.init(std.testing.allocator); defer frame.deinit(); + p.settings.panel_transition = .vertical; const boot = try p.render(frame.allocator()); p.acknowledgePanelPresentation(boot.panelTracks()); - p.settings.panel_transition = .vertical; _ = try p.newShell(1, ""); try std.testing.expect(layout.splitColumn(p, 0, 1, false)); @@ -3536,14 +3668,14 @@ test "vertical close samples only a canonical baseline containing that pane" { defer p.deinit(); var frame = std.heap.ArenaAllocator.init(std.testing.allocator); defer frame.deinit(); + p.settings.panel_transition = .vertical; const boot = try p.render(frame.allocator()); p.acknowledgePanelPresentation(boot.panelTracks()); - p.settings.panel_transition = .vertical; _ = try p.newShell(1, ""); try std.testing.expect(layout.splitColumn(p, 0, 1, false)); p.sync(); - for (0..layout.Transition.vertical.frames()) |_| p.update(.tick); + for (0..animation.Transition.vertical.frames()) |_| p.update(.tick); _ = frame.reset(.retain_capacity); const canonical = try p.render(frame.allocator()); try std.testing.expectEqual(@as(usize, 0), canonical.panelTracks().len); @@ -3562,9 +3694,9 @@ test "previous-grid animation refreshes its mask and snaps overlapping layout ch defer p.deinit(); var frame = std.heap.ArenaAllocator.init(std.testing.allocator); defer frame.deinit(); + p.settings.panel_transition = .vertical; const boot = try p.render(frame.allocator()); p.acknowledgePanelPresentation(boot.panelTracks()); - p.settings.panel_transition = .vertical; _ = try p.newShell(1, ""); try std.testing.expect(layout.splitColumn(p, 0, 1, false)); @@ -3632,7 +3764,7 @@ test "canonical fallback and transition toggle retire unpresented tracks" { p.acknowledgePanelPresentation(moving.panelTracks()); try std.testing.expect(moving.panelTracks().len > 0); exec.applySettingBuiltin(p, config.Runtime.find("PanelZoom").?, null); - try std.testing.expectEqual(layout.Transition.zoom, p.settings.panel_transition); + try std.testing.expectEqual(animation.Transition.zoom, p.settings.panel_transition); try std.testing.expect(p.presentation.pending); try std.testing.expect(p.presentation.pointer(p.screen_w, p.screen_h, 10, 4) == null); for (p.presentation.tracks) |track| try std.testing.expect(track == null); @@ -3686,11 +3818,11 @@ test "back-to-back layout commits retarget from the last presented boxes" { const target_c = p.presentation.tracks[0] orelse return error.MissingSecondRetarget; try std.testing.expect(target_c.from.eql(shown_a)); try std.testing.expect(target_c.to.eql(layout.panelBox(p.rects[0]))); - try std.testing.expectEqual(layout.Phase.moving, target_c.phase); + try std.testing.expectEqual(animation.Phase.moving, target_c.phase); _ = frame.reset(.retain_capacity); const latest = try p.render(frame.allocator()); - var submitted: ?layout.Track = null; + var submitted: ?animation.Track = null; for (latest.panelTracks()) |track| if (track.pane == 0) { submitted = track; break; @@ -3713,13 +3845,13 @@ test "an unpresented opening pane remains in the opening paint phase" { try std.testing.expect(layout.splitColumn(p, 0, 1, false)); p.sync(); const first = p.presentation.tracks[1] orelse return error.MissingOpeningTrack; - try std.testing.expectEqual(layout.Phase.opening, first.phase); + try std.testing.expectEqual(animation.Phase.opening, first.phase); _ = try p.newShell(2, ""); try std.testing.expect(layout.splitColumn(p, 1, 2, true)); p.sync(); const retargeted = p.presentation.tracks[1] orelse return error.MissingOpeningRetarget; - try std.testing.expectEqual(layout.Phase.opening, retargeted.phase); + try std.testing.expectEqual(animation.Phase.opening, retargeted.phase); try std.testing.expect(retargeted.from.eql(first.from)); } @@ -3757,7 +3889,7 @@ test "core composes ASCII bytes while visual-only cells pass through" { var arena = std.heap.ArenaAllocator.init(std.testing.allocator); defer arena.deinit(); - const presented = try p.composeAsciiTransitions(arena.allocator(), &surface); + const presented = try draw.composeAsciiTransitions(p, arena.allocator(), &surface); try std.testing.expect(presented != &surface); try std.testing.expectEqualStrings("C", presented.at(0, 0).grapheme()); try std.testing.expectEqualStrings("x", presented.at(1, 0).grapheme()); @@ -3792,7 +3924,7 @@ test "core composes character motion out of the new grid, not a fade" { var arena = std.heap.ArenaAllocator.init(std.testing.allocator); defer arena.deinit(); - const presented = try p.composeAsciiTransitions(arena.allocator(), &surface); + const presented = try draw.composeAsciiTransitions(p, arena.allocator(), &surface); try std.testing.expect(presented != &surface); var seen: [8]u8 = undefined; for (&seen, 0..) |*byte, col| byte.* = presented.at(@intCast(col), 0).text[0]; @@ -3800,8 +3932,8 @@ test "core composes character motion out of the new grid, not a fade" { try std.testing.expectEqualStrings("a", surface.at(0, 0).grapheme()); // The last active sample is the untouched canonical grid, with no copy. - surface.panel_tracks[0].frame = layout.Transition.edges.frames() - 1; - try std.testing.expect(try p.composeAsciiTransitions(arena.allocator(), &surface) == &surface); + surface.panel_tracks[0].frame = animation.Transition.edges.frames() - 1; + try std.testing.expect(try draw.composeAsciiTransitions(p, arena.allocator(), &surface) == &surface); } test "repeated non-dyadic column splits preserve every unrelated boundary" { @@ -3955,7 +4087,7 @@ pub const Pardes = struct { rects: [MAX_PANES]Rect = @splat(.{}), col_x: [MAX_COLS]u16 = undefined, col_w: [MAX_COLS]u16 = undefined, - presentation: layout.Presentation = .{}, + presentation: Presentation = .{}, active: usize = 0, jumps: [MAX_JUMPS]Loc = undefined, @@ -4035,13 +4167,11 @@ pub const Pardes = struct { chord_arg: ?[]u8 = null, /// how many `execute` calls are on the stack — see max_exec_depth exec_depth: u8 = 0, - /// The exec under way was made by a gesture on a pane's body -- a - /// middle click, the execute key -- and so may go to a REPL bound for - /// the text's language; one run by name, `Exec ...`, never does. - exec_from_body: bool = false, /// An exec waiting on the REPL question (`Pane.Prompt.repl_choice`): /// the pane it came from, the language, and the text, owned. - repl_ask: ?struct { from: u32, lang: u8, text: []u8 } = null, + /// `offered` holds, by letter, the serial of the pane each answer named + /// when asked: a letter answered later is that pane or nothing. + repl_ask: ?struct { from: u32, lang: u8, text: []u8, offered: [26]u32 = @splat(0) } = null, /// A key press is being handled: someone is at the keyboard to answer, /// so a builtin may ask rather than guess. Nothing else sets it -- not /// a click, a 9P write, a startup line or a pane's shell exiting. @@ -4069,6 +4199,13 @@ pub const Pardes = struct { /// Set by a shell whose present was skipped (no swapchain image): the /// frame is still owed, and the next pump draws it again. present_skipped: bool = false, + /// Core time. `now_ns` is the shell's monotonic clock as `advance` was + /// last given it; `stepped_ns` is how far animation has been stepped + /// along it, in whole frames of `animation.frame_ns`. Idle, the two are + /// the same instant. + now_ns: u64 = 0, + stepped_ns: u64 = 0, + clock_started: bool = false, /// Builtins announce themselves on the message row. Off while startup /// configuration is applied: those lines are nobody clicking, and should /// not leave the row holding the name of the last one. @@ -4444,6 +4581,7 @@ pub const Pardes = struct { errdefer p.gpa.free(owned); const pane = try panes.Terminal.create(p.gpa, p.screen_w, p.screen_h); pane.command = owned; + pane.command_pty = true; pane.body.mode = .tty; // Its directory is the one it was run for, and says which of the // directory's commands reuse it; the child's own cd does not move it. @@ -4527,6 +4665,14 @@ pub const Pardes = struct { if (off < bytes.len) p.parkPendingWrite(id, bytes[off..]); } + /// How many bytes `emitWrite` can take for pane `id` now without + /// dropping any: the effects left, then what the pending buffer holds. + pub fn writeRoom(p: *const Pardes, id: usize) usize { + const pending = limits.pending_write_cap -| p.pending_write_bytes; + if (p.pending_write[id] != null) return pending; + return (p.effects.len - p.effects_len) * 64 + pending; + } + fn parkPendingWrite(p: *Pardes, id: usize, bytes: []const u8) void { if (comptime limits.pending_write_cap == 0) return; if (p.pending_write_bytes + bytes.len > limits.pending_write_cap) return; @@ -4887,7 +5033,17 @@ pub const Pardes = struct { pub fn pump(p: *Pardes, h: Host) !void { p.host = h; const v = h.vtable; - if (v.wait_input) |f| f(h.ctx, if (p.animationActive()) layout.Animation.frame_ms else 0); + if (v.wait_input) |f| { + // Asleep until input or until core animation next needs a + // frame; 0 is no timeout at all. + const timeout: u32 = if (p.nextWake()) |due| wake: { + const now = if (v.now) |clock| clock(h.ctx) else p.now_ns; + const ms = ((due -| now) + std.time.ns_per_ms - 1) / std.time.ns_per_ms; + break :wake @intCast(std.math.clamp(ms, 1, std.math.maxInt(u32))); + } else 0; + f(h.ctx, timeout); + } + if (v.now) |clock| p.advance(clock(h.ctx)); while (p.nextQueued()) |ev| p.update(ev); while (p.nextEffect()) |e| p.perform(e); turn.settle(); @@ -4897,7 +5053,9 @@ pub const Pardes = struct { // Nothing to draw: do not spend a frame, and above all do not block on // the display for one. This is what keeps the frame rate governing // rendering and nothing else. - if (!p.needs_frame and !p.animationActive()) return; + // A shell with a clock draws what `advance` stepped; one without + // steps its own `.tick`s and draws while anything animates. + if (!p.needs_frame and (v.now != null or !p.animationActive())) return; _ = p.frame_arena.reset(.retain_capacity); const surface = try p.render(p.frame_arena.allocator()); if (v.present) |f| f(h.ctx, surface); @@ -4921,6 +5079,10 @@ pub const Pardes = struct { look.cancelLookHover(p); const reply = ctlfs.handle(p, req); if (reply.status == .err and (req.op == .write or req.op == .setattr)) ctlfs.events.noteError(p, req, reply); + // A pane that joined a column holding only a stillborn scratch takes + // it now, before the answer: one read of index after the look shows + // the replacement done, and the log has its del with the new. + exec.replaceStillborn(p); // The request was a whole step of its own, so it settles the way a // step does: the cursor and scroll reconciled, the scripted panes // told, and the panes it made announced to /log now rather than at @@ -5022,6 +5184,7 @@ pub const Pardes = struct { }, .eof => |e| if (p.panes[e.pane]) |pane| if (pane.command != null) { // Output is over; the command is over when its child exits. + pane.command_pty = false; } else p.removePane(e.pane, null) catch |err| { pane.body.mode = .normal; p.reportError(e.pane, "terminal exited; Del retries close", err); @@ -5158,9 +5321,14 @@ pub const Pardes = struct { defer p.gpa.free(ask.text); // Its letter sends it there; anything else takes it back. if (key.ctrl or key.alt or key.cp > 'z' or key.cp < 'a') return; - for (p.panes, 0..) |target, to| if (target) |repl| if (repl.repl) |r| - if (r.lang == ask.lang and r.letter == key.cp and exec.replLive(repl)) + const serial = ask.offered[key.cp - 'a']; + if (serial == 0) return; + // The pane offered, still that REPL and still running: it + // may have closed or been rebound while the question stood. + if (p.paneBySerial(serial)) |to| if (p.panes[to].?.repl) |r| + if (r.lang == ask.lang and r.letter == key.cp and exec.replLive(p, to)) return exec.sendToRepl(p, id, to, ask.text); + p.setMessage(id, "Repl: the REPL chosen is gone; nothing sent"); return; } if (asked.prompt != .del_side) continue; @@ -5313,9 +5481,6 @@ pub const Pardes = struct { return; } edit.pinPaneCursor(p, &pane.body); - // The execute key on a body is the exec a bound REPL may take. - p.exec_from_body = cmd == config.exec_cmd; - defer p.exec_from_body = false; const explicit = (p.native_images and pane.hasPdfSelection()) or (pane.body.vsel.active and pane.body.vsel.explicit) or pane.body.msel.active; if (explicit) { @@ -5324,13 +5489,14 @@ pub const Pardes = struct { pane.body.vsel.active = false; pane.body.msel.active = false; pane.body.select = false; - exec.runBuiltin(p, cmd, p.active, "", txt); + // The execute key on a body: text a bound REPL may take. + exec.runBuiltinFrom(p, cmd, p.active, "", txt, true); return; } } const sel = look.expandedSel(p, pane, look.cursorWordSel(p, pane)) orelse return; const word = edit.selectionText(p, pane, sel) catch return; - exec.runBuiltin(p, cmd, p.active, "", word); + exec.runBuiltinFrom(p, cmd, p.active, "", word, true); return; } if (t.mode == .normal and t.what == .body and pane.hasPdf()) return normal.handlePdfNormal(p, pane, key); @@ -5710,7 +5876,7 @@ pub const Pardes = struct { // ---- dumb undo/redo: whole-state snapshots, one per edit op ---- - pub fn acknowledgePanelPresentation(p: *Pardes, tracks: []const layout.Track) void { + pub fn acknowledgePanelPresentation(p: *Pardes, tracks: []const animation.Track) void { p.presentation.acknowledge(p, tracks); if (p.pointer_inside and p.drag != .none) { if (p.presentation.pointer(p.screen_w, p.screen_h, p.pointer_raw_col, p.pointer_raw_row)) |mapped| { @@ -5727,10 +5893,10 @@ pub const Pardes = struct { look.cancelLookHover(p); } - /// A native scene pass proved unavailable. Config reads these exact bits, - /// and the idle-clock predicate stops immediately once they are clear. + /// A native post pass proved unavailable: the chain is emptied, which + /// Config then reports. pub fn disableSceneEffects(p: *Pardes) void { - p.settings.scene_effects = .{}; + p.settings.post.clear(); } // ---- doc panes ---- @@ -5772,7 +5938,10 @@ pub const Pardes = struct { // ---- dump / load (acme-style: `pardes -l state.zon` restores a session) ---- /// Close a pane; its rows go to `to`, or where layout.absorbVWeight - /// sends them when that is null. + /// sends them when that is null. Focus on it follows its rows: to the + /// pane that grew into them, or to the scratch left standing in an + /// emptied column. Every route that closes a pane comes through here or + /// removeColumn, so none picks focus for itself, and none by recency. pub fn removePane(p: *Pardes, id: usize, to: ?usize) !void { const pane = p.panes[id] orelse return; // A column outlives its panes. Closing the last one leaves an empty @@ -5799,10 +5968,11 @@ pub const Pardes = struct { layout.insert(p, f.col, f.idx + 1, free); break :heir free; }; - layout.absorbVWeight(p, id, to); + const gainer = layout.absorbVWeight(p, id, to); + const beside = if (last_in_column) p.besideColumn(place.?.col, id) else null; layout.removePane(p, id); p.panes[id] = null; - if (p.active == id) p.active = heir orelse p.prevFocus(id) orelse { + if (p.active == id) p.active = heir orelse gainer orelse beside orelse p.anyPane() orelse { p.quit = true; p.emit(.quit); return; @@ -5811,6 +5981,11 @@ pub const Pardes = struct { pub fn removeColumn(p: *Pardes, id: usize) !void { const place = layout.findPane(p, id) orelse return; + const had_focus = layout.findPane(p, p.active); + const beside = if (had_focus != null and had_focus.?.col == place.col) + p.besideColumn(place.col, p.active) + else + null; var ids: [MAX_PANES]usize = undefined; var parents: [MAX_PANES]*Pane = undefined; const count = p.col_n[place.col]; @@ -5824,7 +5999,7 @@ pub const Pardes = struct { layout.removePane(p, closed); p.panes[closed] = null; } - if (p.panes[p.active] == null) p.active = p.prevFocus(p.active) orelse { + if (p.panes[p.active] == null) p.active = beside orelse p.anyPane() orelse { p.quit = true; p.emit(.quit); return; @@ -5847,16 +6022,26 @@ pub const Pardes = struct { return null; } - pub fn prevFocus(p: *Pardes, closing: usize) ?usize { - var i = p.njumps; - while (i > 0) { - i -= 1; - const id = p.jumps[i].pane; - if (id != closing and p.panes[id] != null) return id; - } - for (p.panes, 0..) |slot, k| { - if (slot != null and k != closing) return k; + /// The pane that takes over `id`'s place when column `col` goes: in the + /// column layout.removePane gives the width to, the one level with the + /// middle of `id`. Asked before the column goes, while rects still hold. + fn besideColumn(p: *const Pardes, col: usize, id: usize) ?usize { + if (p.ncol < 2) return null; + const next = if (col > 0) col - 1 else col + 1; + const r = p.rects[id]; + const mid = r.y + r.h / 2; + var pick: ?usize = null; + for (p.col_panes[next][0..p.col_n[next]]) |k| { + if (p.panes[k] == null) continue; + pick = k; + if (p.rects[k].y +| p.rects[k].h > mid) break; } + return pick; + } + + /// Any live pane: the last resort when nothing took the closed one's place. + fn anyPane(p: *const Pardes) ?usize { + for (p.panes, 0..) |slot, k| if (slot != null) return k; return null; } @@ -6019,18 +6204,83 @@ pub const Pardes = struct { return &p.chrome_animation.displayed; } - /// Whether an idle frontend should schedule another tick. All frame-based - /// core work belongs in this one predicate so TTY and GUI mature it alike. - pub fn animationActive(p: *const Pardes) bool { - if (p.chrome_animation.isActive() or p.look_hover_wait != null) return true; + /// When core animation next needs a frame, on the `stepped_ns` + /// timeline: a frame from now while anything moves, the end of the + /// wait while something only waits (a message lingering, a look-hover + /// delay), null when nothing is animating. Every frame-based animation + /// the core owns is in this one list, which is what lets every shell + /// sleep exactly as long as nothing changes. + pub fn nextWake(p: *const Pardes) ?u64 { + const next = p.stepped_ns + animation.frame_ns; + if (p.chrome_animation.isActive() or p.presentation.animating()) return next; + var frames: ?u64 = null; + if (p.look_hover_wait) |waiting| { + const delay = config.look_preview_delay_frames orelse return next; + frames = @max(1, delay -| waiting.frames); + } for (p.panes) |slot| if (slot) |pane| { - if (Messages.messagesAnimating(pane)) return true; + const wait = Messages.messageWake(p, pane) orelse continue; + frames = if (frames) |soonest| @min(soonest, wait) else wait; }; - const scene = p.settings.scene_effects; - if (scene.crt or scene.ripple or scene.glitch) return true; - return p.presentation.animating(); + return if (frames) |n| p.stepped_ns + n * animation.frame_ns else null; + } + + /// For shells that only need a yes or no: macOS and the board, which + /// keep their own frame banks. + pub fn animationActive(p: *const Pardes) bool { + return p.nextWake() != null; + } + + /// Bring core animation up to `now_ns`, the shell's monotonic clock: one + /// `.tick` for every whole frame that has passed since it last stood + /// still, so an animation takes as long on a 144 Hz display, over ssh or + /// after a slow frame as it does anywhere. A wait (a message lingering, + /// the look-hover delay) is jumped to its end in one step and drawn + /// once. Idle, time is not banked: the next animation starts from now. + pub fn advance(p: *Pardes, now_ns: u64) void { + // The first time a shell's clock is seen, core time starts there. + const started = p.clock_started; + p.clock_started = true; + p.now_ns = now_ns; + if (!started) p.stepped_ns = now_ns; + const frame = animation.frame_ns; + var moving: u32 = 0; + while (p.nextWake()) |due| { + if (due > now_ns) break; + // Only waiting until `due`: its counters move there at once. + const held = (due - p.stepped_ns) / frame; + if (held > 1) { + Messages.holdMessages(p, held - 1); + if (p.look_hover_wait) |*waiting| waiting.frames +|= @intCast(@min(held - 1, std.math.maxInt(u16))); + p.stepped_ns += (held - 1) * frame; + } + // Back from a stall, the moving frames it missed are not all + // run at once: the rest are stepped from now, at their pace. + if (moving == max_catch_up_frames) { + p.stepped_ns = now_ns; + return; + } + moving += 1; + p.stepped_ns += frame; + p.update(.tick); + // A stepped frame is a frame to draw. (A `.tick` does not ask + // for one itself: the last frame of a fade used never to be + // drawn.) + p.needs_frame = true; + } else { + p.stepped_ns = now_ns; + return; + } + // A 60 Hz display frame is 16.67 ms and ours 16: without this, every + // 24th display frame would take two steps, a hitch in every fade. + // An overshoot this small is let go; a larger one (144 Hz lands 4.8 + // ms past) is kept, so the average rate stays right. + if (moving > 0 and now_ns - p.stepped_ns < vsync_slack_ns) p.stepped_ns = now_ns; } + pub const vsync_slack_ns = 1500 * std.time.ns_per_us; + pub const max_catch_up_frames = 240; + pub fn noteHaptic(p: *Pardes, pulse: Haptic) void { if (comptime platform != .macos) return; if (p.haptic == .look) return; @@ -6047,15 +6297,14 @@ pub const Pardes = struct { pub fn reprojectTagHit(p: *const Pardes, tag_hit: TagHit) ?TagHit { for (p.surface.tagLayers()) |*layer| { - if (layer.cols == 0 or layer.kind != tag_hit.kind or layer.id != tag_hit.id or layer.serial != tag_hit.serial) continue; + if (layer.rows == 0 or layer.kind != tag_hit.kind or layer.id != tag_hit.id or layer.serial != tag_hit.serial) continue; if (layer.kind == .pane) { if (layer.id >= p.panes.len) return null; const pane = p.panes[layer.id] orelse return null; if (pane.serial != layer.serial) return null; } if (layer.kind == .column and (layer.id >= p.ncol or p.col_serial[layer.id] != layer.serial)) return null; - // A taller tag has a layer per line; the point is on one of them. - return layer.hitAt(tag_hit.pixel_x, tag_hit.pixel_y, @floatFromInt(tag_hit.metrics.body_w), @floatFromInt(tag_hit.metrics.body_h), @floatFromInt(tag_hit.metrics.tagline_w), @floatFromInt(tag_hit.metrics.tagline_h)) orelse continue; + return layer.tagHit(tag_hit.pixel_x, tag_hit.pixel_y, @floatFromInt(tag_hit.metrics.body_w), @floatFromInt(tag_hit.metrics.body_h), @floatFromInt(tag_hit.metrics.tagline_w), @floatFromInt(tag_hit.metrics.tagline_h)) orelse continue; } return null; } @@ -6073,446 +6322,21 @@ pub const Pardes = struct { } pub fn tagCapacity(p: *const Pardes, physical_width: u16) u16 { - const layer: TagLayer = .{ .viewport = .{ .x = 0, .y = 0, .w = physical_width, .h = 1 } }; + const layer: Layer = .{ .kind = .pane, .viewport = .{ .x = 0, .y = 0, .w = physical_width, .h = 1 } }; return layer.capacity(p.row_metrics); } pub fn reprojectBodyHit(p: *const Pardes, body_hit: Mouse.BodyHit) ?Mouse.BodyHit { for (&p.surface.body_layers) |*layer| { if (layer.rows == 0 or layer.serial != body_hit.serial) continue; - return layer.hitAt(body_hit.pixel_x, body_hit.pixel_y, @floatFromInt(body_hit.metrics.body_w), @floatFromInt(body_hit.metrics.body_h), @floatFromInt(body_hit.metrics.tagline_w), @floatFromInt(body_hit.metrics.tagline_h)); + return layer.bodyHit(body_hit.pixel_x, body_hit.pixel_y, @floatFromInt(body_hit.metrics.body_w), @floatFromInt(body_hit.metrics.body_h), @floatFromInt(body_hit.metrics.tagline_w), @floatFromInt(body_hit.metrics.tagline_h)); } return null; } - // ---- render: build the canonical surface ---- + // ---- render: build the canonical surface (draw.zig) ---- - pub fn render(p: *Pardes, arena: std.mem.Allocator) !*Surface { - panes.File.refreshHighlights(p); - const s = &p.surface; - const ncells = @as(usize, p.screen_w) * p.screen_h; - if (s.cells.len != ncells) { - const cells = try p.gpa.alloc(Cell, ncells); - p.gpa.free(s.cells); - s.cells = cells; - } - s.cols = p.screen_w; - s.rows = p.screen_h; - s.cursor = null; - s.pointer_shape = .arrow; - if (comptime pdf_enabled) if (p.pdf_hover_preview) |preview| { - if (preview.probe.link != null and preview.pane < p.panes.len) { - if (p.panes[preview.pane]) |pane| { - if (pane.serial == preview.serial and panes.Pdf.paneNativeReady(p, pane)) - s.pointer_shape = .link; - } - } - }; - // A look-hover preview means the pointed word is a real Look or Exec - // operand: the same plumbing a click would act on. Hosts that model - // the pointer per-text (the macOS I-beam) read this as "target" and - // afford it the arrow instead. - if (p.look_hover_preview != null) s.pointer_shape = .target; - // Stale hover bits must not survive into a frame whose pointer has - // moved on: the ordinary content paint does not clear fields it - // never set. - for (s.cells) |*c| c.hover = false; - for (&s.body_layers) |*layer| layer.rows = 0; - for (&s.tag_layers) |*layer| layer.cols = 0; - s.nimages = 0; - s.npanel_tracks = 0; - s.previous_cells = &.{}; - s.previous_body_layers = &.{}; - s.previous_tag_layers = &.{}; - s.cell_diffs = &.{}; - const chrome = p.chromeTheme(); - const th = p.theme(); - // Separators have their own role; a scrollbar need not frame the page. - s.fill(0, 0, s.cols, s.rows, .{ .bg = .{ .rgb = chrome.border } }); - - for (&p.panes, 0..) |*slot, id| { - const pane = slot.* orelse continue; - pane.body_rows = 0; - pane.body_visible_rows = 0; - pane.context_row_limit = null; - s.body_layers[id].rows = 0; - Messages.collectNotices(p, pane, p.rects[id], id); - try p.renderPane(arena, pane, p.rects[id], id, id == p.active); - try body_layer.renderBodyLayer(p, arena, pane, p.rects[id], id); - } - for (&p.panes, 0..) |*slot, id| { - const pane = slot.* orelse continue; - if (pane.notices.len == 0) continue; - const r = p.rects[id]; - const tx = r.x + config.GUTTER; - const tw = r.w - config.GUTTER; - // Painted the way the sticky context headers above them are: the - // tagline font and the tagline's own colours, so a notice reads as - // a band belonging to the pane rather than as a line of body text - // that happens to sit at the bottom of it. - const msg_style: CellStyle = .{ - .fg = .{ .rgb = chrome.tag_fg }, - .bg = .{ .rgb = chrome.tag_bg }, - .font_role = .tagline, - }; - // An OVERLAY over the body's top rows, at the right edge, one - // chip to a row in the order collectNotices chose -- not a row - // taken out of the body the way a tree-sitter context header is. - // The chip is as wide as its own message and no wider, so the text - // beneath the rest of the row keeps reading as the file it is. - const first = p.bodyTop(pane, r); - var leader_buf: [16]u8 = undefined; - for (pane.notices.slice(), 0..) |kind, i| { - const row = first + @as(u16, pane.notices.row[i]); - // Every notice is painted on the canonical grid as well as - // emitted as a tag layer: the grid is what a terminal client - // draws, and a band it cannot see is a message it never gets. - // The GUI skips grid cells a tag layer covers, so nothing is - // drawn twice there. - const text = Messages.noticeText(p, pane, i, &leader_buf); - const chip = Messages.noticeCols(p, text, tw); - if (chip == 0) continue; - const cx = tx + tw - chip; - pane.notices.left[i] = cx; - // A message coming or going blends toward the page it sits - // on; a grid cannot move it by less than a row. - var style = msg_style; - // Where an exec was sent to a REPL reads in the tag's name - // tint, set apart from what the editor says. - const ink = if (kind == .message and pane.msg_sent) chrome.tag_name_fg else chrome.tag_fg; - if (kind == .message and pane.msg_sent) style.fg = .{ .rgb = ink }; - if (Messages.noticeLife(pane, i)) |life| { - // No page colour to fade to (a terminal's own default): - // the text dissolves into its chip instead. - const alpha = Messages.messageMotion(p, life).alpha; - const page = th.bg orelse chrome.tag_bg; - style.fg = .{ .rgb = Messages.blendRgb(ink, page, alpha) }; - style.bg = .{ .rgb = Messages.blendRgb(chrome.tag_bg, page, alpha) }; - } - s.fill(cx, row, chip, 1, .{ .bg = style.bg, .font_role = .tagline }); - // One column short of the chip's right edge: a prompt's caret - // sits AFTER its last character the moment it opens, and flush - // right would put it past the pane, off the grid, and past what - // the detached wire will encode -- which drops every frame for - // as long as the prompt is up. - const printed = Messages.printRight(s, cx, row, chip -| 1, text, style); - if (kind != .prompt or id != p.active or pane.prompt == .del_side or pane.prompt == .repl_choice) continue; - // The cursor follows the text to wherever it landed; a caret - // in the part a narrow band dropped has nowhere to be. - const prompt_col = panes.File.displayWidth(text[0..@min(@as(usize, @intCast(@max(0, pane.input.cur_col))), text.len)]); - if (prompt_col < printed.dropped) continue; - const caret = printed.left + (prompt_col - printed.dropped); - if (caret < tx + tw) - s.cursor = .{ .x = @intCast(caret), .y = row, .bar = pane.input.mode == .insert }; - } - } - - try body_layer.paintHeaders(p); - try body_layer.renderTagLayers(p, arena); - - switch (p.drag) { - .border_v => |d| { - if (d.cur_x < s.cols) { - var row: u16 = p.topBarHeight(); - while (row < s.rows) : (row += 1) s.overlayDash(d.cur_x, row, "â•Ž"); - } - if (d.corner) |k| if (d.cur_y < s.rows) { - var col = if (k.col == d.left_col) p.col_x[k.col] else d.cur_x +| 1; - const end = if (k.col == d.left_col) d.cur_x else p.col_x[k.col] +| p.col_w[k.col] -| 1; - while (col <= end and col < s.cols) : (col += 1) s.overlayDash(col, d.cur_y, "â•Œ"); - }; - }, - .border_h => |d| if (d.cur_y < s.rows) { - var col = p.col_x[d.col]; - while (col < p.col_x[d.col] + p.col_w[d.col]) : (col += 1) s.overlayDash(col, d.cur_y, "â•Œ"); - }, - .column_move => |d| rail: { - const source = layout.columnBySerial(p, d.serial) orelse break :rail; - // Where the column's left edge would land, reordered or not. - const edge: u16 = switch (layout.columnDrop(p, source, d.cur_x, d.grab)) { - .stay => break :rail, - .reorder => |target| if (target < source) p.col_x[target] else p.col_x[target] + p.col_w[target], - .edge => |x| x, - }; - // Leave the outside insertion rail visible above compact - // text layers. This clips presentation only, never reflows. - if (edge == s.cols) { - for (&s.body_layers) |*layer| if (layer.rows > 0 and layer.viewport.x + layer.viewport.w == s.cols) { - layer.viewport.w -|= 1; - }; - for (&s.tag_layers) |*layer| if (layer.cols > 0 and layer.viewport.x + layer.viewport.w == s.cols and layer.viewport.y >= p.topBarHeight()) { - layer.viewport.w -|= 1; - }; - } - // The rail runs in the seam cell left of the edge, where a - // border drag's does: the edge cell itself is a gutter, which - // the GUI paints as a scroll rail that swallowed the dashes. - // At the window's left edge there is no seam, so it runs just - // past that scroll rail instead. It takes the lit grip's - // color: this is where the grabbed column lands. - const x = @min(if (edge == 0) config.GUTTER - 1 else edge - 1, s.cols -| 1); - var row: u16 = p.topBarHeight(); - while (row < s.rows) : (row += 1) { - // Past the left edge's scroll rail the rail would cut - // through column 0's grip and pane boxes: leave them whole. - if (edge == 0 and s.at(x, row).style.font_role == .tagline) continue; - s.overlayDash(x, row, "â•Ž"); - s.at(x, row).style.fg = .{ .rgb = chrome.column_box }; - } - }, - .move => |d| if (d.cur_x < s.cols) { - if (layout.movePlacement(p, d.id, d.cur_x, d.cur_y)) |placement| { - var col: u16 = p.col_x[placement.preview_col]; - while (col < p.col_x[placement.preview_col] + p.col_w[placement.preview_col]) : (col += 1) { - s.set(col, placement.row, "â•Œ", .{ .fg = .{ .rgb = chrome.lineno } }); - } - s.set(d.cur_x, placement.row, "â–Œ", .{ .fg = .{ .rgb = chrome.lineno } }); - } - }, - .none, .select => if (p.pointer_inside) { - // hover hints on a pane's own trailing edge - var c: usize = 0; - while (c + 1 < p.ncol) : (c += 1) { - if (p.hover_col == p.col_x[c] + p.col_w[c] -| 1) { - var row: u16 = p.topBarHeight(); - while (row < s.rows) : (row += 1) s.overlayDash(p.hover_col, row, "â•Ž"); - } - } - for (0..p.ncol) |cc| { - if (p.hover_col < p.col_x[cc] or p.hover_col >= p.col_x[cc] + p.col_w[cc]) continue; - // the same seam the h-handle hit test picks (see there) - if (mouse.seamIdxAt(p, cc, p.hover_row) != null) { - var col = p.col_x[cc]; - while (col < p.col_x[cc] + p.col_w[cc]) : (col += 1) s.overlayDash(col, p.hover_row, "â•Œ"); - } - } - for (0..p.ncol -| 1) |cn| { - if (p.hover_col != p.col_x[cn] + p.col_w[cn] -| 1) continue; - if (mouse.seamIdxAt(p, cn, p.hover_row) != null) continue; - if (mouse.seamIdxAt(p, cn + 1, p.hover_row) == null) continue; - var col = p.col_x[cn + 1]; - while (col < p.col_x[cn + 1] + p.col_w[cn + 1]) : (col += 1) s.overlayDash(col, p.hover_row, "â•Œ"); - } - }, - } - - // debug overlay: a small stats box drawn last, top-right ("Debug") - if (p.settings.debug) if (p.panes[p.active]) |at| { - var nlive: usize = 0; - for (p.panes) |slot| { - if (slot != null) nlive += 1; - } - var sb_off: usize = undefined; - var sb_total: usize = undefined; - if (at.file) |*f| { - sb_off = f.scroll; - sb_total = panes.File.nlines(p.gpa, f); - } else if (at.pdfPage()) |page| { - sb_off = page; - sb_total = if (comptime pdf_enabled) at.pdf.?.page_count else 0; - } else { - const sb = panes.Terminal.scrollbar(at); - sb_off = sb.offset; - sb_total = sb.total; - } - const effective_font = p.settings.font.effective_name.get(); - const font_name = if (effective_font.len == 0) "default" else effective_font; - var ov_buf: [256]u8 = undefined; - const text = std.fmt.bufPrint( - &ov_buf, - "pardes resizes={d}\ntheme {s}\nfont {s}\nterms {d} cols {d}\nactive #{d} {d}x{d}\nscroll {d}/{d}\npinch {d:6.4}\ntscroll {d:7.4}", - .{ p.resize_count, p.theme().name, font_name[0..@min(font_name.len, 64)], nlive, p.ncol, p.active, at.cols, at.rows, sb_off, sb_total, p.ov_pinch_scale, p.ov_touch_scroll_delta }, - ) catch ""; - // wide enough for the longest theme name compiled in, which is the - // only row here whose width is not ours to choose - const ow: u16 = 38; - const oh: u16 = 10; - const ox: u16 = if (s.cols > ow) s.cols - ow else 0; - if (ox + ow <= s.cols and p.topBarHeight() + oh <= s.rows) { - // vaxis single_rounded border ring, default style - s.set(ox, p.topBarHeight(), "â•", .{}); - s.set(ox + ow - 1, p.topBarHeight(), "â•®", .{}); - s.set(ox, p.topBarHeight() + oh - 1, "â•°", .{}); - s.set(ox + ow - 1, p.topBarHeight() + oh - 1, "╯", .{}); - var bx = ox + 1; - while (bx < ox + ow - 1) : (bx += 1) { - s.set(bx, p.topBarHeight(), "─", .{}); - s.set(bx, p.topBarHeight() + oh - 1, "─", .{}); - } - var by = p.topBarHeight() + 1; - while (by < p.topBarHeight() + oh - 1) : (by += 1) { - s.set(ox, by, "│", .{}); - s.set(ox + ow - 1, by, "│", .{}); - } - s.fill(ox + 1, p.topBarHeight() + 1, ow - 2, oh - 2, .{ .bg = .{ .rgb = chrome.scroll_track } }); - var lines = std.mem.splitScalar(u8, text, '\n'); - var ly: u16 = p.topBarHeight() + 1; - while (lines.next()) |line| : (ly += 1) { - if (ly >= p.topBarHeight() + oh - 1) break; - _ = s.print(ox + 1, ly, ow - 2, line, .{ .fg = .{ .rgb = chrome.tag_fg } }); - } - } - }; - try p.presentation.submit(p, s); - return p.composeAsciiTransitions(arena, s); - } - - fn composeAsciiTransitions(p: *Pardes, arena: std.mem.Allocator, canonical: *Surface) !*Surface { - _ = p; - if (!canonical.hasPanelDiff()) return canonical; - var presented: ?*Surface = null; - for (canonical.panelTracks()) |track| { - if (!track.effect.composedByCore() or track.phase == .closing) continue; - const area = layout.CellArea.of(track.to); - const col_end = @min(canonical.cols, area.x0 +| area.cols); - const row_end = @min(canonical.rows, area.y0 +| area.rows); - var row: u16 = area.y0; - while (row < row_end) : (row += 1) { - var col: u16 = area.x0; - while (col < col_end) : (col += 1) { - const index = @as(usize, row) * canonical.cols + col; - const composed = composedCell(canonical, track, area, col, row, index) orelse - continue; - if (composed.visuallyEqual(&canonical.cells[index])) continue; - if (presented == null) { - const next = try arena.create(Surface); - next.* = canonical.*; - next.cells = try arena.dupe(Cell, canonical.cells); - presented = next; - } - presented.?.cells[index] = composed; - } - } - } - return presented orelse canonical; - } - - fn composedCell( - canonical: *const Surface, - track: layout.Track, - area: layout.CellArea, - col: u16, - row: u16, - index: usize, - ) ?Cell { - if (track.effect == .ascii) { - const diff = switch (canonical.cell_diffs[index]) { - .ascii => |diff| diff, - .unchanged, .visual => return null, - }; - const byte = diff.byteAt(track.frame); - if (byte == diff.to) return null; - if (track.frame == 0) return canonical.previous_cells[index]; - return withByte(canonical.cells[index], byte); - } - return switch (layout.charSource(track, col - area.x0, row - area.y0, area)) { - .old => canonical.previous_cells[index], - .byte => |byte| withByte(canonical.cells[index], byte), - // Churn belongs on the glyph, not on the pane's empty space, and it - // borrows whichever side of the diff actually has one. - .churn => |byte| blk: { - const new_cell = &canonical.cells[index]; - if (hasGlyph(new_cell)) break :blk withByte(new_cell.*, byte); - const old_cell = &canonical.previous_cells[index]; - if (hasGlyph(old_cell)) break :blk withByte(old_cell.*, byte); - break :blk old_cell.*; - }, - .at => |offset| blk: { - const source_col = @as(i32, col) + offset.cols; - const source_row = @as(i32, row) + offset.rows; - // A glyph whose source lies outside the pane has not arrived - // yet: the frozen old cell is the only truthful thing under it. - if (source_col < area.x0 or source_row < area.y0 or - source_col >= @as(i32, area.x0) + area.cols or - source_row >= @as(i32, area.y0) + area.rows or - source_col >= canonical.cols or source_row >= canonical.rows) - break :blk canonical.previous_cells[index]; - const source = @as(usize, @intCast(source_row)) * canonical.cols + - @as(usize, @intCast(source_col)); - break :blk canonical.cells[source]; - }, - }; - } - - fn withByte(cell: Cell, byte: u8) Cell { - var out = cell; - out.text[0] = byte; - out.len = 1; - out.default = false; - return out; - } - - /// Whether a cell shows a glyph a character effect can work on. An unpainted - /// cell and a space are both blank space, whatever style they carry. - fn hasGlyph(cell: *const Cell) bool { - return !cell.default and !(cell.len == 1 and cell.text[0] == ' '); - } - - fn renderPane(p: *Pardes, arena: std.mem.Allocator, pane: *Pane, r: Rect, id: usize, active: bool) !void { - const tz = tracy.zone(@src(), "renderPane"); - defer tz.end(); - if (r.w <= config.GUTTER or r.h == 0) return; - const s = &p.surface; - const th = p.theme(); - const chrome = p.chromeTheme(); - const tx = r.x + config.GUTTER; // text area (tag + body), right of the gutter - const tw = r.w - config.GUTTER; - const tag_y = p.tagTop(pane, r); - const body_y = p.bodyTop(pane, r); - const pane_bg: Color = if (th.bg) |c| .{ .rgb = c } else .default; - - // text area resets to terminal-default cells (vaxis clear semantics); - // light themes paint the page over it. - { - // Two full passes over every cell in the pane, every frame. - const tz_clear = tracy.zone(@src(), "paneClear"); - defer tz_clear.end(); - s.clearRect(tx, r.y, tw, r.h); - if (th.bg) |bg| s.fill(tx, r.y, tw, r.h, .{ .bg = .{ .rgb = bg } }); - } - - const box_bg = if (active) chrome.box else chrome.box_dim; - const box_lum = (@as(u16, box_bg[0]) * 3 + @as(u16, box_bg[1]) * 6 + @as(u16, box_bg[2])) / 10; - const box_ink: [3]u8 = if (box_lum > 140) .{ 0x00, 0x00, 0x00 } else .{ 0xff, 0xff, 0xff }; - const box_style: CellStyle = .{ - .fg = .{ .rgb = box_ink }, - .bg = .{ .rgb = box_bg }, - // Grips keep physical grid dimensions, independently of tag text. - .font_role = .tagline, - }; - s.fill(r.x, tag_y, config.GUTTER, pane.tag_rows, box_style); - s.set(r.x, tag_y, switch (pane.body.mode) { - .normal => config.tag_normal, - .insert => config.tag_insert, - .tty => config.tag_tty, - }, box_style); - - try body_layer.paintPaneTag(p, arena, pane, r, id, active, p.tagCapacity(r.w -| TAG_TEXT_INSET)); - - // Folded panes retain their body state, but neither body pixels nor - // its cursor belong outside the one-row tag rectangle. - if (pane.collapsed) return; - - if (comptime pdf_enabled) - if (pane.hasPdf() and panes.Pdf.draw(p, pane, r, id, tx, tw)) return; - - if (pane.image) |*iv| { - // Below the notice chips: a picture is drawn after the cells (the - // GUI's image pass, kitty's z-order), so a chip over it would be - // painted out. Text gets the overlay; a picture gives up the rows. - const shown = pane.notices.span(); - const image_h = (r.h -| pane.tag_rows) -| shown; - panes.Image.draw(p, iv, @intCast(id), pane.serial, tx, body_y + shown, tw, image_h); - // thumbless, but the same one column as the real scrollbar below — - // that is the whole point of drawing it, and like that one it runs - // past the notice bands so the gutter has no notch in it - s.fill(r.x, body_y, 1, r.h -| pane.tag_rows, .{ .bg = .{ .rgb = chrome.scroll_track } }); - s.fill(r.x + 1, body_y, 1, r.h -| pane.tag_rows, .{ .bg = pane_bg }); - return; - } - - try body_layer.renderBody(p, arena, pane, r, id, active, true); - } + pub const render = draw.render; pub fn appendImagePlace(p: *Pardes, place: ImagePlace) bool { const s = &p.surface; @@ -6751,12 +6575,12 @@ test "a prompt chip is a band with its caret, still on the grid, and only the ch // A pixel shell draws the prompt from its band, in the tagline's pitch, // with the caret right after the marker's last glyph. const band = for (p.surface.tagLayers()) |*layer| { - if (layer.cols != 0 and layer.kind == .notice) break layer; + if (layer.rows != 0 and layer.kind == .notice) break layer; } else return error.NoPromptBand; try std.testing.expectEqual(row, band.viewport.y); const caret = band.cursor orelse return error.MissingBandCaret; try std.testing.expect(caret.bar); - try std.testing.expectEqualStrings("/", band.cells[caret.col - 1].grapheme()); + try std.testing.expectEqualStrings("/", band.cells[caret.x - 1].grapheme()); // The chip covers only its own columns. Left of it is ordinary body, and // a sweep there still selects. @@ -6802,11 +6626,11 @@ test "a prompt is typed on its own line in the notice band and leaves the tag ro try std.testing.expect(p.surface.tag_layers[0].cursor == null); // The band carries the answer and the caret, one cell back from its end. const band = for (p.surface.tagLayers()) |*layer| { - if (layer.cols != 0 and layer.kind == .notice) break layer; + if (layer.rows != 0 and layer.kind == .notice) break layer; } else return error.NoPromptBand; const caret = band.cursor orelse return error.MissingBandCaret; - try std.testing.expectEqualStrings("t", band.cells[caret.col - 1].grapheme()); - try std.testing.expectEqualStrings("w", band.cells[caret.col].grapheme()); + try std.testing.expectEqualStrings("t", band.cells[caret.x - 1].grapheme()); + try std.testing.expectEqualStrings("w", band.cells[caret.x].grapheme()); const grid = p.surface.cursor orelse return error.MissingPromptCursor; try std.testing.expectEqual(p.bodyTop(pane, p.rects[0]), grid.y); @@ -6904,6 +6728,7 @@ test "Del from a key asks which neighbour takes the rows; nothing else asks" { // A word that is not a side closes nothing. try std.testing.expect(p.executeBuiltinLine(again, "Del x")); + try std.testing.expectEqualStrings("Del: takes k, j or nothing", p.panes[again].?.msg[0..p.panes[again].?.msg_len]); try std.testing.expect(p.panes[again] != null); // DelAbove is Del k, and a line that is not a key never asks. try std.testing.expect(p.executeBuiltinLine(again, "DelAbove")); @@ -6931,6 +6756,59 @@ test "Del from a key asks which neighbour takes the rows; nothing else asks" { try std.testing.expect(p.panes[low] == null); } +test "a Look that finds nothing says so" { + if (platform == .web) return; + const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 80, .rows = 24 }); + defer p.deinit(); + p.newScratchBelow(p.active); + const id = p.active; + p.sync(); + look.lookAt(p, id, "/no/such/zzqq"); + try std.testing.expectEqualStrings("Look: no match for \"/no/such/zzqq\"", p.panes[id].?.msg[0..p.panes[id].?.msg_len]); +} + +test "focus on a closed pane goes to the pane that takes its place, not the one focused before" { + if (platform == .web) return; + const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 120, .rows = 40 }); + defer p.deinit(); + const shell = p.active; + p.newScratchColumn(shell); + const right = p.active; + p.sync(); + p.newScratchBelow(shell); + const low = p.active; + p.sync(); + // The dogfood case: `right` was focused just before `low`, but `shell` + // grows into `low`'s rows, so `shell` gets the focus. + try std.testing.expect(p.executeBuiltinLine(low, "Del")); + p.sync(); + try std.testing.expect(p.panes[low] == null); + try std.testing.expectEqual(shell, p.active); + + // Closing a pane that has no focus leaves the focus where it is. + p.newScratchBelow(shell); + const other = p.active; + p.sync(); + p.active = right; + p.sync(); + try std.testing.expect(p.executeBuiltinLine(other, "Del")); + try std.testing.expectEqual(right, p.active); + + // Delcol: the column that takes the width holds, level with the closed + // pane, the pane that takes its place; `right` was focused just before. + p.newScratchBelow(right); + const right_low = p.active; + p.newScratchBelow(shell); + const left_low = p.active; + p.active = right; + p.sync(); + p.active = left_low; + p.sync(); + try p.removeColumn(left_low); + p.sync(); + try std.testing.expectEqual(right_low, p.active); +} + test "closing the last pane in a column leaves an empty one in its place" { if (platform == .web) return; const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 120, .rows = 24 }); @@ -7084,7 +6962,7 @@ test "raw tty Escape only leaves at a shell prompt" { if (platform == .web) return; const p = try Pardes.init(std.testing.allocator, .{ .cols = 80, .rows = 24, .file = "mise.toml" }); defer p.deinit(); - exec.spawnTty(p, 0); + _ = exec.spawnTty(p, 0); const shell = p.active; const pane = p.panes[shell].?; var buf: [256]u8 = undefined; @@ -7115,7 +6993,7 @@ test "raw tty Ctrl-B switches to editor mode without sending child input" { if (platform == .web) return; const p = try Pardes.init(std.testing.allocator, .{ .file = "mise.toml" }); defer p.deinit(); - exec.spawnTty(p, 0); + _ = exec.spawnTty(p, 0); const shell = p.active; p.sync(); var buf: [256]u8 = undefined; @@ -7478,9 +7356,9 @@ test "board heap: transition grids fit the budget and the surface borrows its sn defer p.deinit(); var frame: std.heap.ArenaAllocator = .init(std.testing.allocator); defer frame.deinit(); + p.settings.panel_transition = .vertical; const boot = try p.render(frame.allocator()); p.acknowledgePanelPresentation(boot.panelTracks()); - p.settings.panel_transition = .vertical; _ = try p.newShell(1, ""); try std.testing.expect(layout.splitColumn(p, 0, 1, false)); p.sync(); @@ -7591,3 +7469,42 @@ test "jump history terminal rectangle follows output and clears on reflow" { try std.testing.expect(pane.pointerSelection(pane.sel[0]) == null); try std.testing.expectEqual(.none, pane.sel[0].state); } + +test "core animation keeps wall time at 60, 120 and 144 Hz and across a stall" { + const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 80, .rows = 24 }); + defer p.deinit(); + const frame = animation.frame_ns; + // Something that animates for as long as the test wants: the theme + // fade, held at its start before every step. + for ([_]u64{ 60, 120, 144 }) |hz| { + const start: u64 = 5 * std.time.ns_per_s; + p.clock_started = false; + p.advance(start); + var steps: u64 = 0; + var at: u64 = 1; + while (at <= hz) : (at += 1) { + const before = p.stepped_ns; + p.chrome_animation.step = 0; + p.advance(start + at * std.time.ns_per_s / hz); + const taken = (p.stepped_ns - before + frame / 2) / frame; + // Never two steps in one display frame: that is a visible hitch. + try std.testing.expect(taken <= 1); + steps += taken; + } + switch (hz) { + // One step a display frame, every display frame. + 60 => try std.testing.expectEqual(@as(u64, 60), steps), + 120 => try std.testing.expectEqual(@as(u64, 60), steps), + // The frame's own rate: 62 a second, give or take one. + else => try std.testing.expect(steps >= 61 and steps <= 63), + } + } + // A stall of minutes is not minutes of frames. + const before = p.stepped_ns; + p.chrome_animation.step = 0; + p.advance(before + 600 * std.time.ns_per_s); + try std.testing.expectEqual(before + 600 * std.time.ns_per_s, p.stepped_ns); + p.chrome_animation.step = animation.transition_steps; + p.advance(p.stepped_ns + frame); + try std.testing.expectEqual(@as(?u64, null), p.nextWake()); +} diff --git a/src/pdf_view.zig b/src/pdf_view.zig index b2fd5866..13c02231 100644 --- a/src/pdf_view.zig +++ b/src/pdf_view.zig @@ -2542,11 +2542,13 @@ pub fn horizontalWheel(core: *pardes.Pardes, pane: *pardes.Pane, direction: i8) pub fn draw( core: *pardes.Pardes, + s: *pardes.Surface, pane: *pardes.Pane, rect: pardes.Rect, pane_id: usize, text_x: u16, text_width: u16, + rail: *pardes.Region, ) bool { if (comptime !enabled) return false; if (!core.native_images or rect.h <= pane.tag_rows) return false; @@ -2616,16 +2618,12 @@ pub fn draw( // This frame has spent the motion used to choose its raster band. state.scroll_travel = 0; - const body_y = core.bodyTop(pane, rect); - const body_h = rect.h -| pane.tag_rows; const chrome = core.chromeTheme(); const theme = core.theme(); const pane_bg: pardes.Color = if (theme.bg) |color| .{ .rgb = color } else .default; - // The rail runs past the notice bands; only the thumb tracks the text. - core.surface.fill(rect.x, body_y, 1, body_h, .{ .bg = .{ .rgb = chrome.scroll_track } }); - core.surface.fill(rect.x + 1, body_y, 1, body_h, .{ .bg = pane_bg }); - - const track_h: usize = body_h; + // The rail runs past the notice bands; only the thumb tracks the text, + // and it is measured here, in document pixels, for `place`'s region. + const track_h: usize = rail.rect.h; const total = @max(@as(u64, 1), state.document_height); const len = @max( @as(usize, 1), @@ -2639,15 +2637,11 @@ pub fn draw( @as(u64, track_h -| 1), @as(u64, track_h) * offset / total, )); - var y = pos; - while (y < track_h and y < pos + len) : (y += 1) - core.surface.fill( - rect.x, - body_y + @as(u16, @intCast(y)), - 1, - 1, - .{ .bg = .{ .rgb = chrome.scroll_thumb } }, - ); + rail.thumb_y = @intCast(pos); + rail.thumb_h = @intCast(@min(len, track_h -| pos)); + s.fill(rail.rect.x, rail.rect.y, 1, rail.rect.h, .{ .bg = .{ .rgb = chrome.scroll_track } }); + s.fill(rail.rect.x + 1, rail.rect.y, 1, rail.rect.h, .{ .bg = pane_bg }); + s.fill(rail.rect.x, rail.rect.y + rail.thumb_y, 1, rail.thumb_h, .{ .bg = .{ .rgb = chrome.scroll_thumb } }); return true; } diff --git a/src/surface.zig b/src/surface.zig index a9e69cca..b6f41853 100644 --- a/src/surface.zig +++ b/src/surface.zig @@ -3,6 +3,7 @@ const pardes = @import("pardes.zig"); const std = @import("std"); const layout = @import("layout.zig"); +const animation = @import("animation.zig"); const uucode = @import("uucode"); const vaxis = @import("vaxis"); const panes = @import("panes.zig"); @@ -10,8 +11,7 @@ const config = @import("config.zig"); const pdf_enabled = panes.Pdf.enabled; const image = @import("image.zig"); const MAX_PANES = pardes.MAX_PANES; -const BodyLayer = @import("body_layer.zig").Layer; -const TagLayer = @import("tag_layer.zig").Layer; +const Layer = @import("Layer.zig"); const MAX_TAG_LAYERS = pardes.MAX_TAG_LAYERS; const CellPixels = pardes.CellPixels; @@ -38,12 +38,6 @@ pub const Cell = struct { len: u8 = 1, style: CellStyle = .{}, default: bool = true, - /// The look-hover affordance is on this cell: the word under the pointer - /// is a real Look or Exec operand, and hosts that draw the quiet tint as - /// more than a flat fill — macOS renders it as a glass overlay — read - /// this instead of guessing from the background colour, which a real - /// selection shares. - hover: bool = false, pub fn grapheme(c: *const Cell) []const u8 { return c.text[0..c.len]; @@ -70,7 +64,7 @@ pub const AsciiDiff = struct { /// Long printable-byte walks complete in about the same time as the other /// panel effects. Extra distance is crossed by eased character skips. - pub const max_movement_frames = layout.ascii_max_movement_frames; + pub const max_movement_frames = animation.ascii_max_movement_frames; pub fn between(old: *const Cell, new: *const Cell) ?AsciiDiff { const from = old.printableAscii() orelse return null; @@ -323,40 +317,133 @@ test "pixel attachment fit and pan do not invalidate cached pixels" { try std.testing.expect(key.eql(place.cacheKey())); } +/// One part of the frame and where it is, placed once by `draw.place` +/// before anything is painted: every painter and every shell reads the +/// geometry here instead of working it out again. `rect` is in grid cells +/// and is the hit-test geometry. +pub const Region = struct { + pub const Kind = enum(u8) { + /// The frame-wide border fill every other part is painted over. + page, + /// A pane's grip: the mode mark at the head of its tag rows. + grip, + /// A pane's tag rows, right of its grip. + tag, + /// A pane's body, right of its rail: absent while it is collapsed. + body, + /// The scroll rail down a pane's left edge, beside its body. + rail, + /// A transient band over the body's top rows (a message, a prompt). + notice, + column_grip, + column_tag, + workspace_tag, + /// A column below the workspace tag, its bar and panes: its left + /// edge is the spine a pixel shell rules down it. + column, + /// A drag's guide or a seam's hover hint, drawn over the panes. + guide, + /// The debug stats box, drawn over the panes. + debug, + }; + pub const none = std.math.maxInt(u8); + + kind: Kind, + /// The pane slot, or the column, the part belongs to; `none` for the + /// page and the workspace tag. + owner: u8 = none, + serial: u32 = 0, + rect: layout.Rect, + /// The pane or column has the keyboard's focus. + active: bool = false, + /// A rail's thumb: rows from the rail's top, and how many. Zero rows is + /// a rail with no thumb (an image). A native PDF's thumb is measured in + /// document pixels and filled in by Pdf.draw while it paints, so read + /// regions once render has returned. + thumb_y: u16 = 0, + thumb_h: u16 = 0, + /// A notice's index in its pane's `notices`. + notice: u8 = 0, + /// Cells the column-move rail takes off the right edge while it runs + /// there: layers and pixel shells stop short of them, the grid does not. + clip: u16 = 0, +}; + +/// Guides a frame can draw: a run of a column-move rail per pane it skips +/// the tags of, and a handful of border and hover dashes. +pub const MAX_GUIDES = MAX_PANES + 4; +pub const MAX_REGIONS = 1 + MAX_PANES * (4 + panes.Pane.Notices.max) + pardes.MAX_COLS * 3 + 1 + MAX_GUIDES + 1; + +/// The colours a pixel shell draws its chrome in (rules, rails, grips, the +/// tag underlay), resolved by the core each frame, so a frontend attached +/// to a detached session draws them from the frame alone. +pub const Chrome = struct { + /// The theme's ground and ink; null where it leaves them to the shell. + page: ?[3]u8 = null, + fg: ?[3]u8 = null, + /// Rules and column spines. + border: [3]u8 = .{ 0, 0, 0 }, + /// The rule under the workspace tag. + topbar_rule: [3]u8 = .{ 0, 0, 0 }, + tag_bg: [3]u8 = .{ 0, 0, 0 }, + /// The focused pane's and column's tag underlay: `tag_bg` unless + /// FocusTint is on. + tag_focus_bg: [3]u8 = .{ 0, 0, 0 }, + tag_fg: [3]u8 = .{ 0, 0, 0 }, + scroll_track: [3]u8 = .{ 0, 0, 0 }, + scroll_thumb: [3]u8 = .{ 0, 0, 0 }, +}; + /// The canonical interface: what a frame of pardes IS. The tty shell writes /// these cells to vaxis one-to-one; the SDL shells rasterize them. pub const Surface = struct { pub const PointerShape = enum(u8) { arrow, link, target }; pointer_shape: PointerShape = .arrow, - /// Set only for the duration of the look-hover paint, so the cells that - /// paint the quiet affordance can carry the hover bit through the ABI - /// without every selection painter learning a new parameter. - mark_hover: bool = false, - body_layers: [MAX_PANES]BodyLayer = @splat(.{}), - tag_layers: [MAX_TAG_LAYERS]TagLayer = @splat(.{}), + body_layers: [MAX_PANES]Layer = @splat(.{}), + tag_layers: [MAX_TAG_LAYERS]Layer = @splat(.{}), cols: u16 = 0, rows: u16 = 0, + regions: [MAX_REGIONS]Region = undefined, + nregions: u16 = 0, + chrome: Chrome = .{}, cells: []Cell = &.{}, /// bar: draw an insert-style thin cursor instead of the block cursor: ?struct { x: u16, y: u16, bar: bool = false } = null, images: []?ImagePlace = &.{}, nimages: usize = 0, - panel_tracks: [MAX_PANES * 2]layout.Track = undefined, + panel_tracks: [MAX_PANES * 2]animation.Track = undefined, npanel_tracks: usize = 0, previous_cells: []const Cell = &.{}, - previous_body_layers: []const BodyLayer = &.{}, - previous_tag_layers: []const TagLayer = &.{}, + previous_body_layers: []const Layer = &.{}, + previous_tag_layers: []const Layer = &.{}, + previous_regions: []const Region = &.{}, cell_diffs: []const PanelCellDiff = &.{}, - pub fn tagLayers(s: *const Surface) []const TagLayer { + pub fn tagLayers(s: *const Surface) []const Layer { return &s.tag_layers; } - pub fn bodyLayers(s: *const Surface) []const BodyLayer { + pub fn bodyLayers(s: *const Surface) []const Layer { return &s.body_layers; } - pub fn panelTracks(s: *const Surface) []const layout.Track { + pub fn regionList(s: *const Surface) []const Region { + return s.regions[0..s.nregions]; + } + + pub fn addRegion(s: *Surface, r: Region) void { + std.debug.assert(s.nregions < s.regions.len); + s.regions[s.nregions] = r; + s.nregions += 1; + } + + /// The first part of `kind` that `owner` has: its tag, its rail. + pub fn region(s: *Surface, kind: Region.Kind, owner: usize) ?*Region { + for (s.regions[0..s.nregions]) |*r| if (r.kind == kind and r.owner == owner) return r; + return null; + } + + pub fn panelTracks(s: *const Surface) []const animation.Track { return s.panel_tracks[0..s.npanel_tracks]; } @@ -377,11 +464,7 @@ pub const Surface = struct { pub fn at(s: *Surface, x: u16, y: u16) *Cell { std.debug.assert(x < s.cols and y < s.rows); - const cell = &s.cells[@as(usize, y) * s.cols + x]; - // The look-hover paint runs with mark_hover set, and its cells are - // exactly the ones this marks — see render's preview block. - if (s.mark_hover) cell.hover = true; - return cell; + return &s.cells[@as(usize, y) * s.cols + x]; } pub fn set(s: *Surface, x: u16, y: u16, text: []const u8, style: CellStyle) void { diff --git a/src/syntax.zig b/src/syntax.zig index 4494945f..8ed00bfa 100644 --- a/src/syntax.zig +++ b/src/syntax.zig @@ -235,35 +235,8 @@ fn forExt(ext: []const u8) !?Selected { return null; } -const LangAlias = struct { []const u8, []const u8 }; -const lang_aliases = [_]LangAlias{ - .{ "js", "javascript" }, - .{ "jsx", "javascript" }, - .{ "mjs", "javascript" }, - .{ "py", "python" }, - .{ "sh", "bash" }, - .{ "shell", "bash" }, - .{ "zsh", "bash" }, - .{ "bash", "bash" }, - .{ "rs", "rust" }, - .{ "c++", "cpp" }, - .{ "cxx", "cpp" }, - .{ "cc", "cpp" }, - .{ "cs", "c_sharp" }, - .{ "kt", "kotlin" }, - .{ "rb", "ruby" }, - .{ "ml", "ocaml" }, - .{ "hs", "haskell" }, -}; - fn forLang(name: []const u8) !?Selected { - var canonical = name; - for (lang_aliases) |a| { - if (std.ascii.eqlIgnoreCase(name, a[0])) { - canonical = a[1]; - break; - } - } + const canonical = if (grammar_manifest.byName(name)) |i| grammar_manifest.all[i].name else name; for (&specs) |*spec| { if (std.ascii.eqlIgnoreCase(canonical, spec.name)) return try ensure(spec); } diff --git a/src/tag_layer.zig b/src/tag_layer.zig index 7cfe5bbf..213ebc07 100644 --- a/src/tag_layer.zig +++ b/src/tag_layer.zig @@ -1,83 +1,10 @@ -//! Tag text has its own horizontal pitch. Its viewport stays in physical -//! body-grid coordinates so compact text never changes pane hit targets. +//! Pointer hits on tag bands (Layer.TagHit): comparing two, and bringing one +//! that left its band back onto it. const std = @import("std"); const pardes = @import("pardes.zig"); - -/// `notice` is a pane's transient line -- a builtin's name, a pending leader -/// chord -- carried as a tagline-shaped band so it gets the tagline's height, -/// small-font metrics, band offset and border instead of being a body-grid row -/// wearing a tagline font. -pub const Kind = enum(u8) { workspace, column, pane, notice }; -pub const Hit = struct { - kind: Kind, - id: u16, - serial: u32, - col: u16, - /// Which line of a taller tag the layer draws. - line: u16 = 0, - pixel_x: f32, - pixel_y: f32, - metrics: pardes.RowMetrics, -}; -pub const Layer = struct { - kind: Kind = .workspace, - id: u16 = 0, - serial: u32 = 0, - /// A pane's tag taller than a line is drawn a layer to a line; this is - /// which one, counted from its first. - line: u16 = 0, - viewport: pardes.Rect = .{ .x = 0, .y = 0, .w = 0, .h = 0 }, - cols: u16 = 0, - bg: [3]u8 = .{ 0, 0, 0 }, - cells: []pardes.Cell = &.{}, - cursor: ?struct { col: u16, bar: bool = false } = null, - /// Vertical offset in rows (negative: above its viewport), for a band - /// that is moving into place. A pixel shell draws it offset and clipped - /// to the rows below the viewport's top; the grid has no such thing. - slide: f32 = 0, - /// How present a notice band is (1 = fully) while it fades up or - /// dissolves. `bg` and the cells are already blended by it; a pixel - /// shell uses it for what it draws around the band, like its rule. - fade: f32 = 1, - - pub fn capacity(layer: *const Layer, metrics: pardes.RowMetrics) u16 { - return @intCast(@min(std.math.maxInt(u16), @max(1, @as(u32, layer.viewport.w) * @max(1, metrics.body_w) / @max(1, metrics.tagline_w)))); - } - - pub fn hitAt(layer: *const Layer, x: f32, y: f32, body_w: f32, body_h: f32, tagline_w: f32, tagline_h: f32) ?Hit { - if (layer.cols == 0 or !std.math.isFinite(x) or !std.math.isFinite(y)) return null; - for ([_]f32{ body_w, body_h, tagline_w, tagline_h }) |metric| - if (!std.math.isFinite(metric) or metric < 1 or metric > std.math.maxInt(u16)) return null; - const bw = @max(1, body_w); - const bh = @max(1, body_h); - const tw = std.math.clamp(tagline_w, 1, bw); - const th = std.math.clamp(tagline_h, 1, bh); - const dx = x - @as(f32, @floatFromInt(layer.viewport.x)) * bw; - const dy = y - @as(f32, @floatFromInt(layer.viewport.y)) * bh; - if (dx < 0 or dy < 0 or dx >= @as(f32, @floatFromInt(layer.viewport.w)) * bw or dy >= @as(f32, @floatFromInt(layer.viewport.h)) * bh) return null; - return .{ - .kind = layer.kind, - .id = layer.id, - .serial = layer.serial, - .line = layer.line, - .col = @intFromFloat(@min(@as(f32, @floatFromInt(layer.cols - 1)), @floor(dx / tw))), - .pixel_x = x, - .pixel_y = y, - .metrics = .{ .body_w = @intFromFloat(bw), .body_h = @intFromFloat(bh), .tagline_w = @intFromFloat(tw), .tagline_h = @intFromFloat(th) }, - }; - } -}; - -test "tag text capacity uses its own pitch and excludes the physical grip" { - const layer: Layer = .{ .kind = .pane, .id = 2, .serial = 7, .viewport = .{ .x = 12, .y = 4, .w = 38, .h = 1 }, .cols = 90 }; - try std.testing.expectEqual(@as(u16, 63), layer.capacity(.{ .body_w = 10, .tagline_w = 6 })); - try std.testing.expect(layer.hitAt(119.99, 85, 10, 20, 6, 12) == null); - try std.testing.expectEqual(@as(u16, 0), layer.hitAt(120, 85, 10, 20, 6, 12).?.col); - try std.testing.expectEqual(@as(u16, 50), layer.hitAt(423, 85, 10, 20, 6, 12).?.col); - try std.testing.expect(layer.hitAt(500, 85, 10, 20, 6, 12) == null); - try std.testing.expect(layer.hitAt(120, 85, std.math.nan(f32), 20, 6, 12) == null); - try std.testing.expect(layer.hitAt(120, 85, 10, 20, 0, 12) == null); -} +const Layer = @import("Layer.zig"); +const Hit = Layer.TagHit; +const Kind = Layer.Kind; /// Whether two pointer hits name the same cell of the same tag line. pub fn sameCell(a: ?Hit, b: ?Hit) bool { @@ -92,13 +19,13 @@ pub fn columnAt(p: *const pardes.Pardes, kind: Kind, id: usize, supplied: ?Hit, var point = supplied orelse return null; if (point.kind != kind or point.id != id) return null; if (clamp) for (p.surface.tagLayers()) |*layer| { - if (layer.cols == 0 or layer.kind != kind or layer.id != id or layer.serial != point.serial or layer.line != line) continue; + if (layer.rows == 0 or layer.kind != kind or layer.id != id or layer.serial != point.serial or line >= layer.rows) continue; const bw: f32 = @floatFromInt(point.metrics.body_w); const bh: f32 = @floatFromInt(point.metrics.body_h); const left = @as(f32, @floatFromInt(layer.viewport.x)) * bw; const right = @as(f32, @floatFromInt(layer.viewport.x + layer.viewport.w)) * bw; point.pixel_x = std.math.clamp(point.pixel_x, left, @max(left, right - 0.001)); - point.pixel_y = (@as(f32, @floatFromInt(layer.viewport.y)) + 0.5) * bh; + point.pixel_y = (@as(f32, @floatFromInt(layer.viewport.y + line)) + 0.5) * bh; break; }; return if (p.reprojectTagHit(point)) |mapped| mapped.col else null; diff --git a/src/tagline.zig b/src/tagline.zig index 1c060a66..59c51b4d 100644 --- a/src/tagline.zig +++ b/src/tagline.zig @@ -112,8 +112,15 @@ pub fn pathPrefix(arena: std.mem.Allocator, pane: *Pane) ![]const u8 { return std.fmt.allocPrint(arena, "{s} [{d}/{d}]", .{ pv.path, pv.page + 1, pv.page_count }); if (pane.image) |*state| return panes.Image.tagPrefix(arena, state); // A command pane: its directory, the line it runs, and how that went. + // Its first line only, cut to 48 bytes at a character's start: a tag's + // first row is where the prefix ends, and a line that ran over to a + // second (acme runs a multi-line selection as one command) would move + // it (body_layer.zig tagTintRange). if (pane.command) |line| { - const shown = line[0..@min(line.len, 48)]; + const first = line[0 .. std.mem.indexOfAny(u8, line, "\r\n") orelse line.len]; + var cut = @min(first.len, 48); + while (cut < first.len and cut > 0 and first[cut] & 0xC0 == 0x80) cut -= 1; + const shown = first[0..cut]; const more = if (shown.len < line.len) "..." else ""; var idbuf: [48]u8 = undefined; const id = exec.replId(&idbuf, pane); @@ -409,8 +416,26 @@ pub fn restoreTailAt( }, .terminal => &.{ terminal_pane_tail, pre_close_last_terminal_pane_tail, pre_close_last_pane_tail, pre_mode_terminal_pane_tail, pre_tty_first_terminal_pane_tail, pre_collapse_terminal_pane_tail, pre_column_terminal_pane_tail, pre_tty_terminal_pane_tail, prev_terminal_pane_tail, legacy_terminal_pane_tail, pane_tail, pre_collapse_pane_tail, pre_column_pane_tail, prev_pane_tail, legacy_pane_tail }, }; + // A terminal's saved tag carries what was live about it -- the REPL id + // after its directory, the shell in its Tty word -- which is neither + // dumped nor true of the new shell: its tail is still the default. + var plain = said; + var plain_buf: [256]u8 = undefined; + if (class == .terminal) { + const first = plain[0 .. std.mem.indexOfScalar(u8, plain, ' ') orelse plain.len]; + if (std.mem.lastIndexOfScalar(u8, first, '-')) |dash| if (dash + 2 == first.len and first[dash + 1] >= 'a' and first[dash + 1] <= 'z') { + for (@import("grammar_manifest.zig").all) |g| if (std.mem.eql(u8, g.name, first[0..dash])) { + plain = std.mem.trimStart(u8, plain[first.len..], " "); + break; + }; + }; + if (std.mem.startsWith(u8, plain, "Tty+")) { + const word_end = std.mem.indexOfScalar(u8, plain, ' ') orelse plain.len; + plain = std.fmt.bufPrint(&plain_buf, "Tty{s}", .{plain[word_end..]}) catch plain; + } + } for (defaults) |default| - if (std.mem.eql(u8, said, std.mem.trimStart(u8, default, " "))) return; + if (std.mem.eql(u8, plain, std.mem.trimStart(u8, default, " "))) return; pane.tag.own = p.gpa.dupe(u8, rest) catch return; } diff --git a/src/tty/panel_compositor.zig b/src/tty/panel_compositor.zig index 9363841a..67d3a6e6 100644 --- a/src/tty/panel_compositor.zig +++ b/src/tty/panel_compositor.zig @@ -8,9 +8,10 @@ const std = @import("std"); const pardes = @import("../pardes.zig"); const layout = @import("../layout.zig"); +const animation = @import("../animation.zig"); -const Box = layout.Box; -const Track = layout.Track; +const Box = animation.Box; +const Track = animation.Track; /// Kitty placements cannot be resampled through the character-grid transform. /// Keep their transmitted pixels cached, but omit the placement while its pane @@ -77,7 +78,7 @@ pub fn compose( // Stable layout motion first, newly opening panels above it, and closing // tombstones last. A closing pane no longer owns input or canonical cells, // but its frozen old content remains the top visual until it slides out. - for ([_]layout.Phase{ .moving, .opening, .closing }) |phase| { + for ([_]animation.Phase{ .moving, .opening, .closing }) |phase| { for (tracks) |track| { if (!drawable(source, track) or track.phase != phase) continue; switch (track.effect) { @@ -139,7 +140,7 @@ fn dissolve(out: *pardes.Surface, source: *const pardes.Surface, track: Track) v var x = area.x0; while (x < area.x1) : (x += 1) { if (!source.panelCellChanged(x, y)) continue; - if (layout.dissolveRevealed( + if (animation.dissolveRevealed( track.serial, x - area.x0, y - area.y0, @@ -339,7 +340,7 @@ test "TTY content effects never touch cells outside the published diff" { var arena = std.heap.ArenaAllocator.init(std.testing.allocator); defer arena.deinit(); - for ([_]layout.Transition{ .ascii, .dissolve }) |effect| { + for ([_]animation.Transition{ .ascii, .dissolve }) |effect| { const track: Track = .{ .serial = 17, .effect = effect, @@ -366,7 +367,7 @@ test "content transition without a diff snaps to canonical surface" { var arena = std.heap.ArenaAllocator.init(std.testing.allocator); defer arena.deinit(); - for ([_]layout.Transition{ .dissolve, .ascii, .vertical }) |effect| { + for ([_]animation.Transition{ .dissolve, .ascii, .vertical }) |effect| { const track: Track = .{ .effect = effect, .phase = .opening, @@ -391,7 +392,7 @@ test "exact transition endpoint preserves the canonical cursor" { }; const track: Track = .{ .effect = .ascii, - .frame = layout.Transition.ascii.frames() - 1, + .frame = animation.Transition.ascii.frames() - 1, .from = .{ .w = 1, .h = 1 }, .to = .{ .w = 1, .h = 1 }, }; @@ -431,7 +432,7 @@ test "vertical opening rises through a fixed old-grid clip" { .serial = 5, .phase = .opening, .effect = .vertical, - .from = layout.openingBox(.vertical, target, 3), + .from = animation.openingBox(.vertical, target, 3), .to = target, }; @@ -485,7 +486,7 @@ test "vertical closing drops frozen content over canonical cells" { .phase = .closing, .effect = .vertical, .from = old_box, - .to = layout.closingBox(.vertical, old_box), + .to = animation.closingBox(.vertical, old_box), }; const first = try compose(arena.allocator(), &surface, &.{track}, null); @@ -530,13 +531,13 @@ test "closing content paints after opening content regardless of track order" { .phase = .closing, .effect = .vertical, .from = box, - .to = layout.closingBox(.vertical, box), + .to = animation.closingBox(.vertical, box), }; const opening: Track = .{ .serial = 2, .phase = .opening, .effect = .ascii, - .frame = layout.Transition.ascii.frames() - 1, + .frame = animation.Transition.ascii.frames() - 1, .from = box, .to = box, }; @@ -691,8 +692,8 @@ test "active panel transition hides only its own native attachment" { const tracks = [_]Track{ .{ .serial = 41, .effect = .slide, .frame = 0 }, .{ .serial = 42, .effect = .ascii, .frame = 0 }, - .{ .serial = 43, .effect = .zoom, .frame = layout.Transition.zoom.frames() - 1 }, - .{ .serial = 44, .effect = .zoom, .frame = layout.Transition.zoom.frames() }, + .{ .serial = 43, .effect = .zoom, .frame = animation.Transition.zoom.frames() - 1 }, + .{ .serial = 44, .effect = .zoom, .frame = animation.Transition.zoom.frames() }, .{ .serial = 45, .phase = .opening, .effect = .vertical, .frame = 0 }, }; diff --git a/src/tty/tty.zig b/src/tty/tty.zig index 14417cd0..822c2d7f 100644 --- a/src/tty/tty.zig +++ b/src/tty/tty.zig @@ -76,7 +76,8 @@ pub const Command = struct { pub var value: union(enum) { nop, quit, - tick, + /// A timed wait ran out: the core's next wake has come. + wake, key_press: vaxis.Key, pty_read: struct { id: usize, gen: u32, bytes: []u8 }, pty_eof: struct { id: usize, gen: u32 }, @@ -737,6 +738,7 @@ fn localSession( .paste_buf = paste_buf, .inotify_fd = file_watch.init(false), .fs = fs, + .test_clock = host_io.testClock(), }; pardes.lsp.setStatusSink(&sh, lspStatusSink); host_io.setExitWake(loop, wakeForExit); @@ -786,7 +788,7 @@ fn localSession( try startInput(loop, input_cache); defer if (attached.* == null) stopInput(loop); (try std.Thread.spawn(.{}, winchWatch, .{ loop, vx, tty })).detach(); - (try std.Thread.spawn(.{}, tickWatch, .{ io, loop })).detach(); + (try std.Thread.spawn(.{}, wakeWatch, .{ io, loop })).detach(); if (fs) |f| try f.watch(loop, wakeFs); try vx.queryTerminalSend(tty.writer()); @@ -808,7 +810,6 @@ fn localSession( frames: while (!core.quit) { pardes.turn.restoreSettled(); try core.pump(host); - sh.takeExits(); if (core.takeRestore()) |rp| blk: { const bytes = filesystem.readRestore(gpa, rp, core.settings.dump_dir.get()) catch |err| { core.reportError(core.active, "Restore", err); @@ -912,7 +913,11 @@ const Shell = struct { caps_pending: bool = true, check_files: bool = false, in_paste: bool = false, - tracks: []const pardes.layout.Track = &.{}, + tracks: []const pardes.animation.Track = &.{}, + /// PARDES_TEST_CLOCK's virtual time (host_io.testClock), and where the + /// running-out wait moves it: the core's next wake. + test_clock: ?u64 = null, + wake_to: u64 = 0, fn of(ctx: ?*anyopaque) *Shell { return @ptrCast(@alignCast(ctx.?)); @@ -924,12 +929,14 @@ const Shell = struct { const isolated_vtable: host_io.Host.VTable = .{ .wait_input = waitInput, + .now = clockNow, .present = present, .post_present = postPresent, }; const vtable: host_io.Host.VTable = .{ .wait_input = waitInput, + .now = clockNow, .present = present, .post_present = postPresent, .poll_frame = pollFrame, @@ -952,12 +959,20 @@ const Shell = struct { .pipe = pipe, }; + fn clockNow(ctx: ?*anyopaque) u64 { + const s = of(ctx); + return s.test_clock orelse host_io.monotonicNs(); + } + fn waitInput(ctx: ?*anyopaque, timeout_ms: u32) void { const s = of(ctx); var batch: usize = 0; - // The wait is the 9P connections' turn with the core. Animating, the - // frame's tick arrives through the same queue (`tickWatch`). - if (timeout_ms != 0) tick_request.set(s.io); + // The wait is the 9P connections' turn with the core. A timeout (the + // core's next wake) arrives through the same queue (`wakeWatch`). + if (timeout_ms != 0) { + s.wake_to = s.core.nextWake() orelse 0; + requestWake(s.io, timeout_ms); + } pardes.turn.rest(); const first = s.loop.nextEvent() catch { pardes.turn.wake(); @@ -988,6 +1003,9 @@ const Shell = struct { batch += 1; } if (motion) |m| _ = s.apply(m); + // An exit's wake (a .nop) or output an exit waited behind: told + // here, inside the step, so the frame after it shows it. + s.takeExits(); s.reloadWatched(); } @@ -997,7 +1015,9 @@ const Shell = struct { defer tz_event.end(); switch (event) { .nop => {}, - .tick => core.update(.tick), + .wake => if (s.test_clock) |*virtual| { + virtual.* = @max(virtual.*, s.wake_to); + }, .quit => { core.quit = true; return true; @@ -1015,6 +1035,8 @@ const Shell = struct { if (s.gens[pr.id] == pr.gen) core.update(.{ .output = .{ .pane = @intCast(pr.id), .bytes = pr.bytes } }); s.gpa.free(pr.bytes); + // An exit waiting behind this output may be told now. + s.takeExits(); return true; }, .pty_eof => |e| if (s.gens[e.id] == e.gen) { @@ -1024,9 +1046,7 @@ const Shell = struct { // closing it would hang up one that runs on without it. // Its exit, if it came first, is told now its output is in. if (pt.cmd.watched) { - pt.cmd.eof = true; - core.update(.{ .eof = .{ .pane = @intCast(e.id) } }); - s.takeExits(); + host_io.commandEof(core, &s.ptys, e.id, s, closeWatched); return true; } _ = libc.close(pt.file.handle); @@ -1225,7 +1245,7 @@ const Shell = struct { s.gens[pane] +%= 1; const child = host_io.forkShell(s.core, pane, s.prompt_rcs, s.core.shellBin(), cwd, s.core.screen_h, s.core.screen_w, s.fs) catch |err| return s.core.reportError(pane, "shell", err); const command = if (s.core.panes[pane]) |pn| pn.command != null else false; - s.ptys[pane] = .{ .file = child.file, .pid = child.pid, .reader = .{ .any_future = null, .result = {} }, .cmd = .{ .watched = command and host_io.watchExit(child.pid) } }; + s.ptys[pane] = .{ .file = child.file, .pid = child.pid, .reader = .{ .any_future = null, .result = {} }, .cmd = .{ .watched = command and host_io.watchExit(child.pid), .fd = child.file.handle } }; var lbuf: [pardes.memory.limits.host_path_cap + 1]u8 = undefined; if (host_io.shellCwd(child.pid, &lbuf)) |wd| s.core.setCwd(pane, wd); if (s.threads_ok) { @@ -1274,26 +1294,15 @@ const Shell = struct { return host_io.ttyTaken(pt.pid, pt.file.handle); } - /// Each watched child that exited: reaped, the core told, and its pty - /// closed if its end of file came first. + /// The command panes' exits, told once their output is in (host_io). fn takeExits(s: *@This()) void { - while (host_io.takeExited()) |pid| for (&s.ptys) |*slot| { - const pt = if (slot.*) |*pt| pt else continue; - if (pt.pid != pid or pt.cmd.exited) continue; - pt.cmd.exit((host_io.reapExited(pid) orelse break).status); - pt.pid = 0; // reaped: no signal or retire may reach whoever gets it next - break; - }; - for (&s.ptys, 0..) |*slot, id| { - const pt = if (slot.*) |*pt| pt else continue; - if (!pt.cmd.due()) continue; - pt.cmd.told = true; - s.core.update(.{ .exited = .{ .pane = @intCast(id), .status = pt.cmd.status } }); - if (pt.cmd.eof) { - _ = libc.close(pt.file.handle); - slot.* = null; - } - } + host_io.takeExits(s.core, &s.ptys, s, closeWatched); + } + + fn closeWatched(s: *@This(), id: usize) void { + const pt = &(s.ptys[id] orelse return); + _ = libc.close(pt.file.handle); + s.ptys[id] = null; } fn killJob(ctx: ?*anyopaque, pane: u8) bool { @@ -1574,21 +1583,77 @@ fn winchWatch(loop: *Loop, vx: *vaxis.Vaxis, tty: *vaxis.Tty) void { } } -/// Set by an animating frame's wait: post one `.tick` a frame from now. The -/// tick joins the input queue, so a key or a click that lands inside the -/// frame is handled at once instead of after a blind sleep. -var tick_request: std.Io.Event = .unset; +/// A wait with a timeout: post one `.wake` when it runs out. The wake joins +/// the input queue, so a key or a click that lands first is handled at once +/// instead of after a blind sleep; vaxis's queue has no timed wait. Each +/// request bumps `wake_gen`, which cuts short a sleep still timing an +/// earlier, longer request (an 800 ms linger interrupted by a key that +/// starts a 16 ms fall) and times the new one instead. +var wake_gen: std.atomic.Value(u32) = .init(0); +var wake_ms: std.atomic.Value(u32) = .init(0); -fn tickWatch(io: std.Io, loop: *Loop) void { +fn requestWake(io: std.Io, ms: u32) void { + wake_ms.store(ms, .release); + _ = wake_gen.fetchAdd(1, .acq_rel); + io.futexWake(u32, &wake_gen.raw, 1); +} + +fn wakeWatch(io: std.Io, loop: *Loop) void { + var seen = wake_gen.load(.acquire); while (true) { - tick_request.waitUncancelable(io); - tick_request.reset(); - var ts: libc.timespec = .{ .sec = 0, .nsec = @as(isize, pardes.layout.Animation.frame_ms) * std.time.ns_per_ms }; - _ = libc.nanosleep(&ts, null); - loop.postEvent(.tick) catch {}; + // Asleep until a request. + while (wake_gen.load(.acquire) == seen) io.futexWaitUncancelable(u32, &wake_gen.raw, seen); + seen = wake_gen.load(.acquire); + if (timeWake(io, &seen)) loop.postEvent(.wake) catch {}; + } +} + +/// Sleep out the latest request; true when it ran its course, false when +/// none is pending. A newer request met on the way restarts the timing. +fn timeWake(io: std.Io, seen: *u32) bool { + while (true) { + const ms = wake_ms.load(.acquire); + const deadline = host_io.monotonicNs() + @as(u64, ms) * std.time.ns_per_ms; + while (true) { + const now = host_io.monotonicNs(); + if (now >= deadline) return true; + io.futexWaitTimeout(u32, &wake_gen.raw, seen.*, .{ .duration = .{ + .raw = .fromNanoseconds(@intCast(deadline - now)), + .clock = .awake, + } }) catch {}; + const gen = wake_gen.load(.acquire); + if (gen != seen.*) { + seen.* = gen; + break; + } + } } } +test "a short wake request cuts short a long one still sleeping" { + const io = std.testing.io; + var seen = wake_gen.load(.acquire); + requestWake(io, 800); + seen = wake_gen.load(.acquire); + const Timer = struct { + fn run(timer_io: std.Io, start_seen: u32, done: *std.atomic.Value(u64)) void { + var local = start_seen; + _ = timeWake(timer_io, &local); + done.store(host_io.monotonicNs(), .release); + } + }; + var done: std.atomic.Value(u64) = .init(0); + const start = host_io.monotonicNs(); + const thread = try std.Thread.spawn(.{}, Timer.run, .{ io, seen, &done }); + var pause: std.c.timespec = .{ .sec = 0, .nsec = 50 * std.time.ns_per_ms }; + _ = std.c.nanosleep(&pause, null); + requestWake(io, 16); + thread.join(); + // The 16 ms request lands about 66 ms in: well before the 800 ms one + // would have, however loaded the machine. + try std.testing.expect(done.load(.acquire) - start < 700 * std.time.ns_per_ms); +} + fn wakeFs(ctx: ?*anyopaque) void { const loop: *Loop = @ptrCast(@alignCast(ctx.?)); _ = loop.tryPostEvent(.fs_ready) catch {}; @@ -1873,7 +1938,7 @@ const Attach = struct { fn apply(a: *Attach, event: @TypeOf(Command.value)) ?AttachEnd { switch (event) { - .nop, .tick, .fs_ready, .lsp_done, .lsp_status, .pipe_done, .pty_read, .pty_eof, .files_changed => {}, + .nop, .wake, .fs_ready, .lsp_done, .lsp_status, .pipe_done, .pty_read, .pty_eof, .files_changed => {}, .quit => return .none, .focus_in => {}, .focus_out => return a.send(.pointer_leave), diff --git a/src/web.zig b/src/web.zig index b77d07a6..ac0ecbbf 100644 --- a/src/web.zig +++ b/src/web.zig @@ -1,7 +1,7 @@ //! Freestanding WebAssembly boundary for the DOM backend. //! //! JavaScript owns the clock and nothing else: it calls `pardes_tick` (one -//! `Pardes.pump`) and reads the packed cell buffer `present` left behind. The +//! `Pardes.pump`, at requestAnimationFrame's timestamp) and reads the packed cell buffer `present` left behind. The //! host vtable below is only what a page genuinely has — pixels, the //! clipboard, links, downloads. Processes, a real filesystem, a language //! backend and subprocess pipes are left null, so the core answers them itself @@ -106,6 +106,9 @@ const State = struct { frame_len: usize = 0, frame_cols: u16 = 0, frame_rows: u16 = 0, + /// requestAnimationFrame's timestamp as the last tick gave it, in ns: + /// the core's clock (`Host.now`). + now_ns: u64 = 0, fn init(cols: u16, rows: u16) !State { const allocs = pardes.memory.init(gpa); @@ -221,13 +224,13 @@ export fn pardes_mouse_pixel(button_arg: u32, kind_arg: u32, col_arg: u32, row_a var hit: ?pardes.Mouse.BodyHit = null; for (&s.core.surface.body_layers) |*layer| { const point = source orelse break; - hit = layer.hitAt(point.x * bw, point.y * bh, bw, bh, tw, th); + hit = layer.bodyHit(point.x * bw, point.y * bh, bw, bh, tw, th); if (hit != null) break; } var tag_hit: ?pardes.TagHit = null; for (&s.core.surface.tag_layers) |*layer| { const point = source orelse break; - tag_hit = layer.hitAt(point.x * bw, point.y * bh, bw, bh, tw, th); + tag_hit = layer.tagHit(point.x * bw, point.y * bh, bw, bh, tw, th); if (tag_hit != null) break; } mouseWithHit(button_arg, kind_arg, col_arg, row_arg, mods, hit, tag_hit); @@ -276,30 +279,19 @@ export fn pardes_pointer_leave() void { s.core.update(.pointer_leave); } -/// One iteration of the core's own loop: queued input, effects, render, -/// present. JS calls it once per animation frame, after spending that frame's -/// animation ticks. -export fn pardes_tick() void { +/// One iteration of the core's own loop: queued input, effects, the frames +/// of animation `timestamp_ms` (requestAnimationFrame's clock) has brought, +/// render, present. JS calls it once per display frame; a call with no +/// timestamp (NaN) leaves the clock where it was. +export fn pardes_tick(timestamp_ms: f64) void { const s = &(state orelse return); + if (std.math.isFinite(timestamp_ms) and timestamp_ms >= 0) + s.now_ns = @intFromFloat(timestamp_ms * std.time.ns_per_ms); s.core.pump(host(s)) catch |err| { last_error = @intFromError(err); }; } -/// Spend one fixed 60 Hz animation step, the only writer of animated time in -/// this host. Separate from the pump for the reason the AppKit shell keeps them -/// separate: if every input pump also advanced the transition, a burst of keys -/// would collapse a ten-frame fade into one display frame. -export fn pardes_animation_tick() void { - const s = &(state orelse return); - s.core.update(.tick); -} - -export fn pardes_animating() u32 { - const s = &(state orelse return 0); - return @intFromBool(s.core.animationActive()); -} - /// The Exit builtin, or the last pane closing. JS stops its frame loop. export fn pardes_should_quit() u32 { const s = &(state orelse return 0); @@ -349,6 +341,7 @@ export fn pardes_tag_layer_value(index: u32, field: u32) u32 { const s = &(state orelse return 0); if (index >= pardes.MAX_TAG_LAYERS) return 0; const layer = &s.core.surface.tag_layers[index]; + if (layer.rows == 0) return 0; return switch (field) { 0 => layer.cols, 1 => @intFromEnum(layer.kind), @@ -358,9 +351,12 @@ export fn pardes_tag_layer_value(index: u32, field: u32) u32 { 5 => layer.viewport.y, 6 => layer.viewport.w, 7 => layer.viewport.h, - 8 => if (layer.cursor) |c| c.col else 65535, + 8 => if (layer.cursor) |c| c.x else 65535, 9 => if (layer.cursor) |c| @intFromBool(c.bar) else 0, 10 => @as(u32, layer.bg[0]) << 16 | @as(u32, layer.bg[1]) << 8 | layer.bg[2], + // A band has a row to each line of its tag: `cols * rows` cells. + 11 => layer.rows, + 12 => if (layer.cursor) |c| c.y else 65535, else => 0, }; } @@ -369,7 +365,7 @@ export fn pardes_tag_layer_cells(index: u32) ?[*]const WebCell { const s = &(state orelse return null); if (index >= pardes.MAX_TAG_LAYERS) return null; const layer = &s.core.surface.tag_layers[index]; - if (layer.cols == 0) return null; + if (layer.rows == 0) return null; const cells = &s.tag_cells[index]; if (cells.len != layer.cells.len) cells.* = gpa.realloc(cells.*, layer.cells.len) catch return null; for (layer.cells, cells.*) |source, *out| out.* = encodeWebCell(source); @@ -462,7 +458,13 @@ extern "pardes" fn host_download( bytes_len: usize, ) callconv(.c) void; +fn now(ctx: ?*anyopaque) u64 { + const s: *State = @ptrCast(@alignCast(ctx.?)); + return s.now_ns; +} + const vtable: pardes.Host.VTable = .{ + .now = now, .present = present, .write_file = writeFile, .write_dump = writeDump, diff --git a/src/web/app.mjs b/src/web/app.mjs index 11d8f228..03829178 100644 --- a/src/web/app.mjs +++ b/src/web/app.mjs @@ -1,7 +1,5 @@ const CELL_SIZE = 20; const ATTR_TAGLINE = 1 << 7; -const ANIMATION_FRAME_MS = 1000 / 60; -const MAX_ANIMATION_TICKS = 4; const DEFAULT_FG = "#cccccc"; const DEFAULT_BG = "#121212"; const decoder = new TextDecoder(); @@ -66,13 +64,16 @@ export class DomRenderer { if (!val(0)) continue; const gripCols = this.wasm.pardes_grip_columns?.() ?? 2; const textInset = this.wasm.pardes_tag_text_inset?.() ?? gripCols; - if (val(1) !== 0 && val(4) >= textInset && this.cellHeight) { - const offset = this.wasm.pardes_tagline_band_offset(val(5),rows*this.cellHeight*256,Math.round(this.cellHeight*256),Math.round(this.taglineHeight*256))/256; - for (let x = val(4)-textInset; x < val(4); x++) tagPrefixBands.set(val(5)*cols+x,offset); - if (val(1) === 2) paneIndicators.add(val(5)*cols+val(4)-textInset); - } - for (let x = val(4); x < Math.min(cols, val(4) + val(6)); x++) { - if (val(5) < rows) tagCovered[val(5) * cols + x] = 1; + // A row to each line of a taller tag. + for (let y = val(5); y < val(5) + Math.max(1, val(11)); y++) { + if (val(1) !== 0 && val(4) >= textInset && this.cellHeight) { + const offset = this.wasm.pardes_tagline_band_offset(y,rows*this.cellHeight*256,Math.round(this.cellHeight*256),Math.round(this.taglineHeight*256))/256; + for (let x = val(4)-textInset; x < val(4); x++) tagPrefixBands.set(y*cols+x,offset); + if (val(1) === 2) paneIndicators.add(y*cols+val(4)-textInset); + } + for (let x = val(4); x < Math.min(cols, val(4) + val(6)); x++) { + if (y < rows) tagCovered[y * cols + x] = 1; + } } } } @@ -120,27 +121,35 @@ export class DomRenderer { const nodes = []; const bw = this.cellWidth, bh = this.cellHeight, tw = this.taglineWidth, th = this.taglineHeight; for (let i = 0; i < this.wasm.pardes_tag_layer_limit(); i++) { - const values = Array.from({length:11}, (_,field) => this.wasm.pardes_tag_layer_value(i,field)); - const cols = values[0]; + const layerValues = Array.from({length:13}, (_,field) => this.wasm.pardes_tag_layer_value(i,field)); + const cols = layerValues[0]; if (!cols) continue; const ptr = this.wasm.pardes_tag_layer_cells(i); if (!ptr) continue; - const bytes = new Uint8Array(this.wasm.memory.buffer,ptr,cols*CELL_SIZE); + // A row to each line of a taller tag, each drawn as a band of its own. + for (let line = 0; line < Math.max(1, layerValues[11]); line++) { + const key = i*64+line; + const values = layerValues.slice(0,11); + values[5] = layerValues[5] + line; + values[7] = 1; + values[8] = layerValues[12] === line ? layerValues[8] : 65535; + const bytes = new Uint8Array(this.wasm.memory.buffer,ptr+line*cols*CELL_SIZE,cols*CELL_SIZE); const offset = this.wasm.pardes_tagline_band_offset(values[5],this.rowCount*bh*256,Math.round(bh*256),Math.round(th*256))/256; const gripCols = this.wasm.pardes_grip_columns?.() ?? 2; const gripX = values[4] - (this.wasm.pardes_tag_text_inset?.() ?? gripCols); const gripCell = canonical[values[5]*this.cols+gripX]; const grip = values[1] === 2 && gripX >= 0 && gripCell && th >= 1 && tw >= 1; const geometry = [bw,bh,tw,th,offset,...values,grip,gripCell?.fg,gripCell?.bg,gripCell?.attrs,gripCell?.text,globalThis.devicePixelRatio].join(":"); - const cached = this.tagNodes.get(i); + const cached = this.tagNodes.get(key); if (cached && cached.geometry === geometry && cached.bytes.length === bytes.length && cached.bytes.every((byte,index)=>byte===bytes[index])) { nodes.push(cached.node); if (cached.grip) nodes.push(cached.grip); continue; } - const view = new DataView(this.wasm.memory.buffer,ptr,cols*CELL_SIZE); + const view = new DataView(this.wasm.memory.buffer,ptr+line*cols*CELL_SIZE,cols*CELL_SIZE); const layer = this.root.ownerDocument.createElement("div"); layer.dataset.tagLayer = String(i); + layer.dataset.tagLine = String(line); layer.style.cssText = `position:absolute;overflow:hidden;white-space:pre;left:${values[4]*bw}px;top:${values[5]*bh+offset}px;width:${values[6]*bw}px;height:${th}px;background:${color(values[10],DEFAULT_BG)}`; for (let col = 0; col < cols; col++) { const off = col*CELL_SIZE; @@ -173,9 +182,10 @@ export class DomRenderer { gripNode.append(mark); } } - this.tagNodes.set(i,{geometry,bytes:bytes.slice(),node:layer,grip:gripNode}); + this.tagNodes.set(key,{geometry,bytes:bytes.slice(),node:layer,grip:gripNode}); nodes.push(layer); if (gripNode) nodes.push(gripNode); + } } if (nodes.length !== this.tagRoot.childNodes.length || nodes.some((node,index)=>node!==this.tagRoot.childNodes[index])) this.tagRoot.replaceChildren(...nodes); } @@ -325,7 +335,6 @@ export class PardesRuntime { this.running = false; this.pointer = null; this.frameHandle = 0; - this.animationClock = { last: null, lag: 0 }; this.bindEvents(); } @@ -338,7 +347,6 @@ export class PardesRuntime { this.wasm.pardes_tick(); this.renderer.render(); this.running = true; - this.animationClock = { last: null, lag: 0 }; this.frameHandle = requestAnimationFrame((timestamp) => this.frame(timestamp)); this.root.focus({ preventScroll: true }); } @@ -355,13 +363,9 @@ export class PardesRuntime { this.resize(); this.root.style.setProperty("--pardes-tagline-font-size", `${this.measuredTaglinePercent}%`); } - // JS owns the animation clock; the pump that follows applies those ticks, - // runs the core's effects and presents one frame however fast the display - // is. Both halves are needed: an idle core still has input and effects. - for (let ticks = animationTicks(this.animationClock, timestamp); ticks > 0; ticks -= 1) { - this.wasm.pardes_animation_tick(); - } - this.wasm.pardes_tick(); + // The core's clock is this timestamp: it steps its own animations + // by it, however fast the display refreshes. + this.wasm.pardes_tick(timestamp); if (this.wasm.pardes_should_quit()) this.running = false; this.renderer.render(); this.frameHandle = requestAnimationFrame((nextTimestamp) => this.frame(nextTimestamp)); @@ -559,28 +563,6 @@ export class PardesRuntime { } } -/// Spend monotonic requestAnimationFrame time as fixed 60 Hz core ticks. A -/// high-refresh display therefore renders repeated states rather than making -/// frame-count transitions run twice as fast. Long suspension is capped so a -/// returning tab cannot execute an unbounded loop before drawing. -export function animationTicks(clock, timestamp) { - if (!Number.isFinite(timestamp)) return 0; - if (clock.last === null || timestamp < clock.last) { - clock.last = timestamp; - clock.lag = 0; - return 0; - } - const elapsed = Math.min(timestamp - clock.last, ANIMATION_FRAME_MS * MAX_ANIMATION_TICKS); - clock.last = timestamp; - clock.lag += elapsed; - const ticks = Math.min(MAX_ANIMATION_TICKS, Math.floor((clock.lag + 1e-7) / ANIMATION_FRAME_MS)); - clock.lag -= ticks * ANIMATION_FRAME_MS; - return ticks; -} - -/// The four things the core asks the page for, as the module's imports. The -/// holder exists because the import object has to be built before the instance -/// whose memory those imports read. export function browserHost() { const host = { wasm: null }; const view = (ptr, len) => new Uint8Array(host.wasm.memory.buffer, ptr, len); diff --git a/test/column_drag.zig b/test/column_drag.zig index feea1bf7..3aea4286 100644 --- a/test/column_drag.zig +++ b/test/column_drag.zig @@ -8,17 +8,17 @@ fn mouse(p: *Pardes, kind: pardes.Mouse.Kind, col: u16) void { p.update(.{ .mouse = .{ .button = .left, .kind = kind, .col = col, .row = pardes.TOPBAR_H } }); } -fn tagLayer(p: *Pardes, column: usize) !*pardes.TagLayer { +fn tagLayer(p: *Pardes, column: usize) !*pardes.Layer { for (&p.surface.tag_layers) |*layer| { - if (layer.cols > 0 and layer.kind == .column and layer.id == column) return layer; + if (layer.rows > 0 and layer.kind == .column and layer.id == column) return layer; } return error.MissingColumnTagLayer; } -fn headerMouse(layer: *const pardes.TagLayer, display_col: u16, kind: pardes.Mouse.Kind) pardes.Mouse { +fn headerMouse(layer: *const pardes.Layer, display_col: u16, kind: pardes.Mouse.Kind) pardes.Mouse { const x = @as(f32, @floatFromInt(layer.viewport.x)) * 10 + (@as(f32, @floatFromInt(display_col)) + 0.5) * 5; const y = (@as(f32, @floatFromInt(layer.viewport.y)) + 0.5) * 20; - return .{ .button = .left, .kind = kind, .col = @intFromFloat(x / 10), .row = @intFromFloat(y / 20), .tag_hit = layer.hitAt(x, y, 10, 20, 5, 10) }; + return .{ .button = .left, .kind = kind, .col = @intFromFloat(x / 10), .row = @intFromFloat(y / 20), .tag_hit = layer.tagHit(x, y, 10, 20, 5, 10) }; } const Snapshot = struct { @@ -144,7 +144,7 @@ test "column grip is separate from compact text and the resize seam" { try std.testing.expectEqual(p.col_x[column], rect.x); try std.testing.expectEqual(rect.x + pardes.TAG_TEXT_INSET, (try tagLayer(p, column)).viewport.x); for (p.surface.tagLayers()) |pane_layer| { - if (pane_layer.cols > 0 and pane_layer.kind == .pane and pane_layer.id == pane_id) + if (pane_layer.rows > 0 and pane_layer.kind == .pane and pane_layer.id == pane_id) try std.testing.expectEqual((try tagLayer(p, column)).viewport.x, pane_layer.viewport.x); } const pane_tag_y = if (p.settings.tag_bottom) rect.y + rect.h - pardes.BOX_H else rect.y; @@ -3,6 +3,7 @@ import contextlib import fcntl import json import os +import signal from pathlib import Path import subprocess import struct @@ -245,7 +246,7 @@ def discovery(binary, embedded=False): client.write('/focus', b'99999\n') raise AssertionError('focus took a serial no pane has') except OSError as refused: - assert 'no such window' in str(refused), refused + assert 'no such pane' in str(refused), refused # /ctl reads the settings as a write takes them and takes the # session's builtins; a pane's ctl takes the pane's. settings = client.read('/ctl') @@ -424,10 +425,27 @@ def exit_answers(binary): raise AssertionError("Exit did not quit the editor") +def signal_cleans_up(binary): + """A detached session told to stop by a signal unlinks its sockets.""" + for sig in [signal.SIGTERM, signal.SIGINT, signal.SIGHUP]: + with tempfile.TemporaryDirectory(prefix='pardes-sig-') as directory: + root = Path(directory) + seen = {} + with session(binary, root, 'sig', terminal=seen) as (client, address): + detached = root / 'pardes-detached-sig.sock' + assert address.exists() and detached.exists() + os.kill(seen['pid'], sig) + deadline = time.monotonic() + 5 + while (address.exists() or detached.exists()) and time.monotonic() < deadline: + time.sleep(.01) + assert not address.exists() and not detached.exists(), (sig, list(root.iterdir())) + + def test(binary, quic=False): started = time.monotonic() run_file(binary) exit_answers(binary) + signal_cleans_up(binary) for options, message in [ (['--fs'], b'no such option'), (['--fs9'], b'no such option'), diff --git a/test/gui-goldens.txt b/test/gui-goldens.txt new file mode 100644 index 00000000..38ca89e5 --- /dev/null +++ b/test/gui-goldens.txt @@ -0,0 +1,18 @@ +01-boot d4e3eb9dba35133df10d46b1d27ab7a90fa9bdefb64bcc304add221326ffdfc9 +02-second-document 235cdf75f3ce1d5800dbbdd7dcfde066af50cde01231a35d00c66c4310213a05 +03-notice 4d59205fe6b89a4589e94c68521257f21b40917c0198ea20248925687663d9f5 +04-context-rows-mid-thumb 7129ee318975f858c430b1e610b26ca756d5bb37553338c0dc6caab2290de2a4 +05-body-selection 39103f3747aae07a12b5151e7e377430b88b96e504670ac2f2d0272197eb827b +06-tag-focus-selection 6a7f50e292f4ede92df24a817218818b93a01fd15fcf39467cf06c3772077834 +07-prompt-notice d5cdacd74ae6d29834f0b09a607bfce5a2ca8a549c259be50b76a57a2d2d3271 +08-wide-glyph-edges 123a182b82a2a8c455291a5c89ccfa28e1f8ce9566172ca404c0b9c71dd33b48 +09-collapsed-focus-tint ae66076fdfb0cab9a906b052df257deee5ba91a6274712d52a76d8a7adc5b415 +10-tagbottom dd8ba0d3ecabf3420d000b0c9591a57278179cbd2a9060f849d283f3881d1847 +11-column-tags 6b1731d1611404597c96ad77f34c2d5cd5a81c1085ec68c6779388e07ce28614 +12-multiline-tag 1b9ccd331814dc76111470f18448b1ca192e1edc3d79ea6eee19a6a78a4b1831 +13-image a52e2cf9f238447d885692cba01e68ef7fdc6ae3fc7c8fe1e95c8463c85f519c +14-theme-ink cc2ea256ddda24e1c97871f75b71ddf62fa825bd02f5d1432592d05e478c707a +15-theme-acme-light 2bde8a2bdfada7f061217f52cb2272913fc0657dbfa1d7448e1852f321f8e3bf +16-debug 129ad6f5f85b0e60e81bc6e8e78434629ee751f49731cf2eb28fd0553efd914a +17-terminal 45a3d9f823ccf28a336ef6687c9c210f9fb05cc426c0fdee98bb0ebb2a957d42 +18-mid-transition 79f90fb247f75ab284fca147028ee18ea78e77a02a57203699fb423f4bcc02fb diff --git a/test/gui_golden.py b/test/gui_golden.py new file mode 100644 index 00000000..d97009c9 --- /dev/null +++ b/test/gui_golden.py @@ -0,0 +1,225 @@ +#!/usr/bin/env python3 +"""Hash settled SDL frames of a fixed set of scenes, to prove a GUI refactor +left every pixel where it was. + +python3 -B test/gui_golden.py <pardes-gui binary> compare +python3 -B test/gui_golden.py <pardes-gui binary> --update rewrite goldens + +The window is hidden (PARDES_TEST renders into an offscreen capture texture), +and the capture carries PARDES_TEST_PAD leftover pixels so edge bugs show. +GPU rasterisation differs between machines and drivers: the goldens in +test/gui-goldens.txt are a LOCAL gate for one machine, never a CI one. Each +scene waits until two captures 400 ms apart agree before it is hashed. +""" +import argparse +import hashlib +import os +from pathlib import Path +import tempfile +import shutil +import time + +from fs import session +from ui_review import require, wait_for + +GOLDENS = Path(__file__).resolve().parent / 'gui-goldens.txt' + +ZIG = b'''const std = @import("std"); + +pub const Shape = union(enum) { + circle: f32, + square: f32, + + pub fn area(shape: Shape) f32 { + return switch (shape) { + .circle => |r| std.math.pi * r * r, + .square => |s| s * s, + }; + } +}; + +pub fn main() void { + var total: f32 = 0; + const shapes = [_]Shape{ .{ .circle = 1 }, .{ .square = 2 } }; + for (shapes) |shape| { +''' + b''.join(b' total += shape.area() * %d; // line %d\n' % (n, n) for n in range(60)) + b''' } + std.debug.print("{d}\\n", .{total}); +} +''' + + +def ppm(width, height): + rows = [] + for y in range(height): + rows.append(bytes(v for x in range(width) for v in ((x * 255) // width, (y * 255) // height, 128))) + return b'P6\n%d %d\n255\n' % (width, height) + b''.join(rows) + + +def panes(client): + serials = [int(row.split()[0]) for row in client.read('/index').decode().splitlines() if row.strip()] + return {serial: client.read(f'/pane/{serial}/tag').decode(errors='replace') for serial in serials} + + +def settled(root): + """The capture once it stops changing: two reads 400 ms apart agree.""" + latest = root / 'latest.ppm' + previous = None + deadline = time.monotonic() + 20 + while time.monotonic() < deadline: + time.sleep(.4) + try: + data = latest.read_bytes() + except FileNotFoundError: + continue + if not data.startswith(b'P6'): + continue + digest = hashlib.sha256(data).hexdigest() + if digest == previous: + return digest + previous = digest + raise RuntimeError('capture never settled') + + +def run(args): + results = [] + # A fixed directory: the paths it holds are drawn in the tags. + root = Path(tempfile.gettempdir()) / 'pardes-gui-golden' + shutil.rmtree(root, ignore_errors=True) + root.mkdir(mode=0o700) + name = 'gui-golden' + config = root / 'config/pardes' + config.mkdir(parents=True) + # No linger: a dismissed message is gone, not caught part way, when a + # scene settles. + (config / 'init').write_text('Shell /bin/sh\nTheme forge\nMessageLinger 0\n') + source = root / 'shapes.zig' + source.write_bytes(ZIG) + notes = root / 'notes.txt' + notes.write_bytes(b'Pardes GUI golden\n\nA second document, opened by Look.\n' * 4) + wide = root / 'wide.txt' + # One of the two alignments puts a wide glyph across the body's right edge. + wide.write_bytes(('x' + '\u754c' * 80 + '\n' + '\u754c' * 80 + '\n').encode()) + image = root / 'ramp.ppm' + image.write_bytes(ppm(96, 64)) + # The session points XDG_RUNTIME_DIR at its own root, so the caller's + # Wayland socket is passed as an absolute path. + display = Path(os.environ.get('WAYLAND_DISPLAY', 'wayland-0')) + if not display.is_absolute(): + display = Path(os.environ.get('XDG_RUNTIME_DIR', '/run/user/%d' % os.getuid())) / display + # The virtual clock: a transition's frames are the same frames on any + # machine, so one partway through can be hashed too. + inherited = {'PARDES_TEST': '1', 'PARDES_TEST_CLOCK': '1', 'PARDES_TEST_COLS': '120', 'PARDES_TEST_ROWS': '40', + 'PARDES_TEST_PAD': '7', 'PARDES_TEST_CAPTURE_DIR': str(root), + 'SDL_VIDEODRIVER': 'wayland', 'WAYLAND_DISPLAY': str(display)} + launch = ['-c', 'stty cols 120 rows 40; exec "$@"', name, str(args.binary.resolve()), + '--9p=' + name, str(source)] + handles = {} + with session('/bin/sh', root, name, socket_name=name, tty=True, + launch=launch, inherited=inherited, terminal=handles) as (client, _): + first = require(wait_for(lambda: next((s for s, tag in panes(client).items() + if 'shapes.zig' in tag), None)), 'source pane missing') + + def scene(label, frame='latest.ppm'): + settled(root) + results.append((label, hashlib.sha256((root / frame).read_bytes()).hexdigest())) + if args.keep: + args.keep.mkdir(parents=True, exist_ok=True) + shutil.copyfile(root / frame, args.keep / (label + '.ppm')) + print(label, results[-1][1][:16], flush=True) + + def mouse(kind, button, x, y): + # The test shell's stdin takes window-pixel mouse events. + os.write(handles['input_fd'], f'\x1b]777;mouse;{kind};{button};{x};{y}\x07'.encode()) + time.sleep(.1) + + def serial_of(word): + return require(wait_for(lambda: next((s for s, tag in panes(client).items() if word in tag), None)), + word + ' missing') + + scene('01-boot') + client.write(f'/pane/{first}/look', f'{notes}\n'.encode()) + notes_pane = serial_of('notes.txt') + scene('02-second-document') + client.write(f'/pane/{first}/ctl', b'Msg a golden notice\n') + scene('03-notice') + client.write(f'/pane/{first}/ctl', b'TreeContext\n') + client.write(f'/pane/{first}/dot', b'45\n') + scene('04-context-rows-mid-thumb') + client.write(f'/pane/{first}/dot', b'40,43\n') + scene('05-body-selection') + # A press and a drag along the source's tag: the tag takes the + # keyboard with a selection and a caret. The pointer then rests on + # empty body space, far right. + mouse('down', 1, 500, 87) + mouse('motion', 1, 620, 87) + mouse('up', 1, 620, 87) + mouse('motion', 0, 1880, 1300) + scene('06-tag-focus-selection') + os.write(handles['input_fd'], b'\x1b') + time.sleep(.2) + scratch = int(client.read('/pane/new')) + client.write(f'/pane/{scratch}/exec', b'Save\n') + scene('07-prompt-notice') + os.write(handles['input_fd'], b'\x1b') + time.sleep(.2) + client.write(f'/pane/{scratch}/exec', b'Del\n') + client.write(f'/pane/{first}/look', f'{wide}\n'.encode()) + wide_pane = serial_of('wide.txt') + client.write(f'/pane/{wide_pane}/name', ('x' + '\u754c' * 70 + '\n').encode()) + client.write('/ctl', b'Wrap off\n') + scene('08-wide-glyph-edges') + client.write('/ctl', b'Wrap on\n') + client.write(f'/pane/{wide_pane}/exec', b'Del\n') + client.write('/ctl', b'FocusTint on\n') + client.write(f'/pane/{notes_pane}/ctl', b'Collapse\n') + scene('09-collapsed-focus-tint') + client.write(f'/pane/{notes_pane}/ctl', b'Collapse\n') + client.write('/ctl', b'Tagbottom\n') + scene('10-tagbottom') + client.write('/ctl', b'Tagbottom\n') + client.write('/ctl', b'ColumnTags\n') + scene('11-column-tags') + client.write('/ctl', b'ColumnTags\n') + client.write(f'/pane/{first}/tag', b' Second\nthird line of the tag') + scene('12-multiline-tag') + client.write(f'/pane/{first}/look', f'{image}\n'.encode()) + serial_of('ramp.ppm') + scene('13-image') + client.write('/ctl', b'Theme ink\n') + scene('14-theme-ink') + client.write('/ctl', b'Theme acme\n') + scene('15-theme-acme-light') + client.write('/ctl', b'Debug\n') + scene('16-debug') + client.write('/ctl', b'Debug\n') + # A terminal pane: raw rows, ANSI colours, a hidden prompt. + before = set(panes(client)) + client.write(f'/pane/{first}/exec', b'Tty\n') + terminal = require(wait_for(lambda: next((s for s in panes(client) if s not in before), None)), 'Tty missing') + client.write(f'/pane/{terminal}/pty/data', b"PS1='$ '; clear; printf '\\033[1;36mcolour\\033[0m plain \\033[32mgreen\\033[0m\\n'\r") + require(wait_for(lambda: b'green' in client.read(f'/pane/{terminal}/body')), 'terminal output missing') + scene('17-terminal') + # Partway through a transition: the panes, the picture among them, + # sliding over for a new column, frame 6 of PanelSlide's 12. Its + # chrome slides with each pane. + client.write('/ctl', b'PanelSlide\n') + client.write(f'/pane/{first}/exec', b'Newcol\n') + require(wait_for(lambda: (root / 'transition-6.ppm').exists()), 'transition frame 6 never drawn') + scene('18-mid-transition', 'transition-6.ppm') + lines = ''.join(f'{label} {digest}\n' for label, digest in results) + if args.update: + GOLDENS.write_text(lines) + print('updated', GOLDENS) + return + expected = dict(line.split() for line in GOLDENS.read_text().splitlines() if line.strip()) + bad = [label for label, digest in results if expected.get(label) != digest] + require(not bad, 'frames changed: ' + ', '.join(bad)) + print(f'{len(results)} GUI frames byte-identical') + + +if __name__ == '__main__': + parser = argparse.ArgumentParser(description=__doc__) + parser.add_argument('binary', type=Path) + parser.add_argument('--update', action='store_true') + parser.add_argument('--keep', type=Path, help='copy each hashed frame here as <scene>.ppm') + run(parser.parse_args()) diff --git a/test/output.zig b/test/output.zig index 400e9508..e49ec4ff 100644 --- a/test/output.zig +++ b/test/output.zig @@ -667,8 +667,9 @@ test "every enabled setting builtin mutates the State Config reports" { else "Panel transition unsupported\n"; try std.testing.expect(std.mem.indexOf(u8, report, transition) != null); - const scene_status = if (builtins.capabilities.scene_shaders) "on" else "unsupported"; - for ([_][]const u8{ "Crt", "Ripple", "Glitch" }) |name| { + // A bare word turns a bundled pass on at its default level. + const scene_status = if (builtins.capabilities.scene_shaders) "2" else "unsupported"; + for ([_][]const u8{"Crt"}) |name| { const line = try std.fmt.bufPrint(&buf, "{s} {s}\n", .{ name, scene_status }); try std.testing.expect(std.mem.indexOf(u8, report, line) != null); } diff --git a/test/panes.zig b/test/panes.zig index 181317ca..40b4b6ba 100644 --- a/test/panes.zig +++ b/test/panes.zig @@ -2,6 +2,7 @@ const std = @import("std"); const pardes = @import("pardes"); const panes = pardes.panes; const layout = pardes.layout; +const animation = pardes.animation; const Pardes = pardes.Pardes; const Pane = pardes.Pane; const Key = pardes.Key; @@ -18,17 +19,17 @@ fn setTag(pane: *Pane, text: []const u8) !void { } const TagLayerTests = struct { - const Kind = @FieldType(pardes.TagLayer, "kind"); - fn findLayer(p: *Pardes, kind: Kind, id: usize) !*pardes.TagLayer { + const Kind = @FieldType(pardes.Layer, "kind"); + fn findLayer(p: *Pardes, kind: Kind, id: usize) !*pardes.Layer { for (&p.surface.tag_layers) |*layer| { - if (layer.cols > 0 and layer.kind == kind and layer.id == id) return layer; + if (layer.rows > 0 and layer.kind == kind and layer.id == id) return layer; } return error.MissingTagLayer; } - fn mouse(layer: *const pardes.TagLayer, x: f32, kind: pardes.Mouse.Kind) pardes.Mouse { + fn mouse(layer: *const pardes.Layer, x: f32, kind: pardes.Mouse.Kind) pardes.Mouse { const y = (@as(f32, @floatFromInt(layer.viewport.y)) + 0.5) * 20; - return .{ .button = .left, .kind = kind, .col = @intFromFloat(x / 10), .row = @intFromFloat(y / 20), .tag_hit = layer.hitAt(x, y, 10, 20, 5, 10) }; + return .{ .button = .left, .kind = kind, .col = @intFromFloat(x / 10), .row = @intFromFloat(y / 20), .tag_hit = layer.tagHit(x, y, 10, 20, 5, 10) }; } test "compact tag layers render and edit Unicode text beyond body column capacity" { @@ -70,7 +71,7 @@ const TagLayerTests = struct { try std.testing.expectEqualStrings("body\n", pane.file.?.content); p.update(.{ .key = .{ .cp = Key.escape } }); const rect = p.rects[0]; - const track: layout.Track = .{ + const track: animation.Track = .{ .serial = pane.serial, .pane = 0, .effect = .zoom, @@ -199,14 +200,16 @@ test "a tag with a newline in it is as tall as its lines, and each line is typed const body_y = p.bodyTop(pane, r); try std.testing.expectEqual(if (bottom) r.y else r.y + 2, body_y); try std.testing.expectEqualStrings("b", surface.at(r.x + config.GUTTER + panes.File.gutterWidth(pane), body_y).grapheme()); - // a layer to a line, for a pixel shell - var lines: usize = 0; + // one layer, a row to each line, for a pixel shell + var layers: usize = 0; for (p.surface.tagLayers()) |*layer| { - if (layer.cols == 0 or layer.kind != .pane or layer.id != 0) continue; - try std.testing.expectEqual(tag_y + layer.line, layer.viewport.y); - lines += 1; + if (layer.rows == 0 or layer.kind != .pane or layer.id != 0) continue; + try std.testing.expectEqual(tag_y, layer.viewport.y); + try std.testing.expectEqual(@as(u16, 2), layer.rows); + try std.testing.expectEqual(@as(u16, 2), layer.viewport.h); + layers += 1; } - try std.testing.expectEqual(@as(usize, 2), lines); + try std.testing.expectEqual(@as(usize, 1), layers); // a click on the second line puts the tag's cursor on it p.update(.{ .key = .{ .cp = Key.escape } }); p.update(.{ .key = .{ .cp = ':' } }); @@ -553,11 +556,11 @@ const TagNavigationTests = struct { }; const BodyHitTests = struct { - fn mouse(layer: *const pardes.BodyLayer, row: u16, col: u16, kind: pardes.Mouse.Kind) pardes.Mouse { + fn mouse(layer: *const pardes.Layer, row: u16, col: u16, kind: pardes.Mouse.Kind) pardes.Mouse { const width: f32 = if (row < layer.context_rows) 8 else 10; const x = @as(f32, @floatFromInt(layer.viewport.x)) * 10 + (@as(f32, @floatFromInt(col)) + 0.5) * width; const y = layer.rowTop(row, 20, 10) + layer.rowHeight(row, 20, 10) / 2; - return .{ .button = .left, .kind = kind, .col = @intFromFloat(x / 10), .row = @intFromFloat(y / 20), .body_hit = layer.hitAt(x, y, 10, 20, 8, 10).? }; + return .{ .button = .left, .kind = kind, .col = @intFromFloat(x / 10), .row = @intFromFloat(y / 20), .body_hit = layer.bodyHit(x, y, 10, 20, 8, 10).? }; } test "compact TreeContext mouse follows source rows in reclaimed space" { @@ -685,7 +688,7 @@ const TreeContextTests = struct { const y = layer.rowTop(row, 20, 10) + 9.5; const x = @as(f32, @floatFromInt(layer.viewport.x)) * 10 + 5; // A one-pixel separator remains inside its existing header row. - try std.testing.expectEqual(row, layer.hitAt(x, y, 10, 20, 8, 10).?.row); + try std.testing.expectEqual(row, layer.bodyHit(x, y, 10, 20, 8, 10).?.row); } pane.scrollBy(-5); _ = try p.render(frame.allocator()); @@ -933,7 +936,7 @@ const TtySelectionTests = struct { const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 40, .rows = 24 }); defer p.deinit(); p.presentation.enabled = false; - pardes.exec.spawnTty(p, 0); + _ = pardes.exec.spawnTty(p, 0); for (p.panes[0..2]) |slot| { slot.?.body.mode = .tty; slot.?.tty_filter = false; diff --git a/test/pdf.zig b/test/pdf.zig index 8b94c1ae..47f8a9e8 100644 --- a/test/pdf.zig +++ b/test/pdf.zig @@ -7,6 +7,7 @@ const image = pardes.image; const config = pardes.config; const builtins = pardes.builtins; const layout = pardes.layout; +const animation = pardes.animation; const dump = pardes.dump; const Pardes = pardes.Pardes; @@ -1400,7 +1401,7 @@ test "PDF tint and tinted theme changes rebuild every visible raster only" { // Chrome animation reads a separate palette. Its ticks must never disturb // the target-theme tint key or ask MuPDF for the same pixels again. try std.testing.expect(p.animationActive()); - for (0..layout.Animation.transition_steps) |_| { + for (0..animation.transition_steps) |_| { p.update(.tick); _ = frame.reset(.retain_capacity); const tick_surface = try p.render(frame.allocator()); diff --git a/test/snapshot.zig b/test/snapshot.zig index bdabb56e..53553657 100644 --- a/test/snapshot.zig +++ b/test/snapshot.zig @@ -579,6 +579,9 @@ fn runScript(arena: std.mem.Allocator, exe_z: [:0]const u8, script_path: []const // views' durations (lsp_zls.zig hideTime) and the transient message row's // time of day (message.zig stamp) _ = setenv("PARDES_NOTIME", "1", 1); + // A virtual core clock: animation moves a frame per timed-out wait, + // whatever the machine's load (host_io.testClock). + _ = setenv("PARDES_TEST_CLOCK", "1", 1); // The protocol client must be HERMETIC under the harness: `.rs` files // speak to the deterministic mock when the build handed one over, and // every other spec is disabled outright — a script that opened a stray diff --git a/test/snapshots/chordcut.golden b/test/snapshots/chordcut.golden index 8bcf12b1..d5266717 100644 --- a/test/snapshots/chordcut.golden +++ b/test/snapshots/chordcut.golden @@ -31,10 +31,11 @@ |8: 2 2echo B''OO g.txt == snap execafter grid=120x31 cursor=25,8 |6: /tmp/pardes-snap/chordcut/cwd/f.txt * Save Tty Collapse D /tmp/pardes-snap/chordcut/cwd (echo B''OO) exit 0 Kill Sa -|7: 1 line 1 Exec BOO -|8: 2 2echo B''OO g.txt exit 0 +|7: 1 line 1 Exec % echo B''OO +|8: 2 2echo B''OO g.txt BOO +|9: 3 line 3 exit 0 == snap cancellook grid=120x31 cursor=25,8 -|7: 1 line 1 BOO +|7: 1 line 1 % echo B''OO == snap lookafter grid=120x31 cursor=7,13 |12: /tmp/pardes-snap/chordcut/cwd/g.txt Save Tty Collapse Del |13: 1 line 1 diff --git a/test/snapshots/cmdexit.golden b/test/snapshots/cmdexit.golden index 58412752..de95c383 100644 --- a/test/snapshots/cmdexit.golden +++ b/test/snapshots/cmdexit.golden @@ -6,9 +6,10 @@ | 2 exec </dev/null >/dev/null 2>&1; sleep 1; false == snap background grid=120x31 cursor=7,3 |17: /tmp/pardes-snap/cmdexit/cwd (sleep 30 & echo BG''STARTED) exit 0 Kill Save Collapse Del -|18: BGSTARTED -|19: exit 0 +|18: % sleep 30 & echo BG''STARTED +|19: BGSTARTED +|20: exit 0 == snap letgo grid=120x31 cursor=7,3 |17: /tmp/pardes-snap/cmdexit/cwd (exec </dev/null >/dev/null 2>&1; sleep 1; false) exit 1 Kill Save Collapse Del -|20: % exec </dev/null >/dev/null 2>&1; sleep 1; false -|21: exit 1 +|21: % exec </dev/null >/dev/null 2>&1; sleep 1; false +|22: exit 1 diff --git a/test/snapshots/cmdword.golden b/test/snapshots/cmdword.golden index 6911bcab..eec32bcb 100644 --- a/test/snapshots/cmdword.golden +++ b/test/snapshots/cmdword.golden @@ -5,13 +5,14 @@ | 1 @`echo ZZ''E` @`echo ZZ''L` Look p.txt @`Look .` == snap atexec grid=120x31 cursor=7,3 |17: /tmp/pardes-snap/cmdword/cwd (echo ZZ''E) exit 0 Kill Save Collapse Del -|18: ZZE -|19: exit 0 -== snap atlook grid=120x31 cursor=2,23 +|18: % echo ZZ''E +|19: ZZE +|20: exit 0 +== snap atlook grid=120x31 cursor=2,24 |17: /tmp/pardes-snap/cmdword/cwd (echo ZZ''L) exit 0 Kill Save Collapse Del -|20: % echo ZZ''L -|21: ZZL -|22: exit 0 +|21: % echo ZZ''L +|22: ZZL +|23: exit 0 == snap lookword grid=120x31 cursor=7,11 |10: /tmp/pardes-snap/cmdword/cwd/p.txt Save Tty Collapse Del |11: 1 just text diff --git a/test/snapshots/layout-close.golden b/test/snapshots/layout-close.golden index 6da1cf3d..a7d159b5 100644 --- a/test/snapshots/layout-close.golden +++ b/test/snapshots/layout-close.golden @@ -39,7 +39,7 @@ |6: |7: |8: -== snap exit grid=140x41 cursor=39,8 +== snap exit grid=140x41 cursor=4,8 |10: |11: |12: diff --git a/test/snapshots/layout-close.snap b/test/snapshots/layout-close.snap index 50a11cc3..4ae3e31f 100644 --- a/test/snapshots/layout-close.snap +++ b/test/snapshots/layout-close.snap @@ -35,8 +35,8 @@ key k stable 700 10000 snap del # exit the (now) 2nd shell through its real tty: pty EOF, again only the pane -# above absorbs — and focus falls back to the -# pane that had it before this one (the moved-out column), not to slot 0 +# above absorbs — and takes the focus too, not the pane that had it before +# this one (the moved-out column) press left 40 9 release left 40 9 stable 400 5000 diff --git a/test/snapshots/layout-open.golden b/test/snapshots/layout-open.golden index 672fb709..79492382 100644 --- a/test/snapshots/layout-open.golden +++ b/test/snapshots/layout-open.golden @@ -32,5 +32,6 @@ |22: 1 echo 'TTY'OK == snap ttydir grid=100x31 cursor=7,22 |10: /tmp/pardes-snap/layout-open/cwd/sub (echo 'TTY -|11: TTYOK -|12: exit 0 +|11: % echo 'TTY'OK +|12: TTYOK +|13: exit 0 diff --git a/test/snapshots/theme.golden b/test/snapshots/theme.golden index 176131e7..4986eaae 100644 --- a/test/snapshots/theme.golden +++ b/test/snapshots/theme.golden @@ -53,178 +53,174 @@ |30: 0-0 d,#608269, 1-1 d,#0d1410, 2-49 #e5eee5,#0d1410, 50-50 d,#608269, 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#000000,#95baa2, 52-52 d,#e4f0ed, 53-79 #3d6055,#e4f0ed, 80-87 #6e4774,#e4f0ed, 88-99 #3d6055,#e4f0ed, +|3: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|4: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|5: 0-0 d,#9fae76, 1-49 d,#fffdeb, 50-50 d,#9fae76, 51-99 d,#fffdeb, +|6: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|7: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|8: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|9: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|10: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|11: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|12: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|13: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|14: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|15: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|16: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|17: 0-1 #000000,#95baa2, 2-2 d,#e4f0ed, 3-29 #3d6055,#e4f0ed, 30-37 #6e4774,#e4f0ed, 38-49 #3d6055,#e4f0ed, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|18: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|19: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|20: 0-0 d,#9fae76, 1-49 d,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|21: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|22: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|23: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|24: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|25: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|26: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|27: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|28: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|29: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +|30: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-49 #293f35,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-99 #293f35,#fffdeb, +== snap colors-off grid=100x31 cursor=4,5 +|3: ls Colors ls +== style colors-off grid=100x31 |3: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-3 #293f35,#fffdeb, 4-41 d,#fffdeb, 42-42 d,#e4f0ed, 43-48 #3d6055,#e4f0ed, 49-49 d,#e4f0ed, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-53 #293f35,#fffdeb, 54-99 d,#fffdeb, |4: 0-0 d,#9fae76, 1-1 d,#fffdeb, 2-6 #293f35,#fffdeb, 7-49 d,#fffdeb, 50-50 d,#9fae76, 51-51 d,#fffdeb, 52-56 #293f35,#fffdeb, 57-99 d,#fffdeb, -|5: 0-0 d,#9fae76, 1-49 d,#fffdeb, 50-50 d,#9fae76, 51-99 d,#fffdeb, |6: 0-0 d,#9fae76, 1-49 d,#fffdeb, 50-50 d,#9fae76, 51-99 d,#fffdeb, |7: 0-0 d,#9fae76, 1-49 d,#fffdeb, 50-50 d,#9fae76, 51-99 d,#fffdeb, |8: 0-0 d,#9fae76, 1-49 d,#fffdeb, 50-50 d,#9fae76, 51-99 d,#fffdeb, @@ -253,240 +249,240 @@ == snap forge grid=100x31 cursor=4,5 |3: ls ls == style forge grid=100x31 -|0: 0-50 #b7bfc6,#35393e, 51-59 #e2eef4,#1c5172, 60-70 #b7bfc6,#35393e, 71-99 d,#35393e, -|1: 0-1 #ffffff,#727f6a, 2-2 d,#3e4650, 3-34 #c1c9d0,#3e4650, 35-49 d,#3e4650, 50-51 #ffffff,#727f6a, 52-52 d,#35393e, 53-84 #b7bfc6,#35393e, 85-99 d,#35393e, -|2: 0-1 #000000,#92bde9, 2-2 d,#3e4650, 3-29 #c1c9d0,#3e4650, 30-37 #e9bda1,#3e4650, 38-49 #c1c9d0,#3e4650, 50-51 #ffffff,#5b6d7f, 52-52 d,#35393e, 53-79 #b7bfc6,#35393e, 80-87 #dfb397,#35393e, 88-99 #b7bfc6,#35393e, -|3: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|4: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|5: 0-0 d,#758592, 1-49 d,#0c0c0e, 50-50 d,#758592, 51-99 d,#0c0c0e, -|6: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|7: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|8: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|9: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|10: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|11: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|12: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|13: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|14: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|15: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|16: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|17: 0-1 #ffffff,#5b6d7f, 2-2 d,#35393e, 3-29 #b7bfc6,#35393e, 30-37 #dfb397,#35393e, 38-49 #b7bfc6,#35393e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|18: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|19: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|20: 0-0 d,#758592, 1-49 d,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|21: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|22: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|23: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|24: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|25: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|26: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|27: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|28: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|29: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, -|30: 0-0 d,#758592, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#758592, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, +|0: 0-50 #c5c9d2,#22252b, 51-59 #e2eef4,#1c5172, 60-70 #c5c9d2,#22252b, 71-99 d,#22252b, +|1: 0-1 #ffffff,#6a7b67, 2-2 d,#2d3440, 3-34 #d1d5de,#2d3440, 35-49 d,#2d3440, 50-51 #ffffff,#6a7b67, 52-52 d,#22252b, 53-84 #c5c9d2,#22252b, 85-99 d,#22252b, +|2: 0-1 #000000,#9cc3f7, 2-2 d,#2d3440, 3-29 #d1d5de,#2d3440, 30-37 #f8cba7,#2d3440, 38-49 #d1d5de,#2d3440, 50-51 #ffffff,#55647b, 52-52 d,#22252b, 53-79 #c5c9d2,#22252b, 80-87 #ecbf9b,#22252b, 88-99 #c5c9d2,#22252b, +|3: 0-0 d,#708095, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#708095, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, +|4: 0-0 d,#708095, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#708095, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, +|5: 0-0 d,#708095, 1-49 d,#0c0c0e, 50-50 d,#708095, 51-99 d,#0c0c0e, +|6: 0-0 d,#708095, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#708095, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, +|7: 0-0 d,#708095, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#708095, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, +|8: 0-0 d,#708095, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 d,#708095, 51-51 d,#0c0c0e, 52-99 #e5e5e5,#0c0c0e, +|9: 0-0 d,#708095, 1-1 d,#0c0c0e, 2-49 #e5e5e5,#0c0c0e, 50-50 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#f3e5bc,#10100e, 13-99 d,#10100e, +|5: 0-0 d,#8c9467, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-12 #f3e5bc,#10100e, 13-99 d,#10100e, +|6: 0-0 d,#8c9467, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-12 #f3e5bc,#10100e, 13-99 d,#10100e, |7: 0-0 d,#222119, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-12 #f3e5bc,#10100e, 13-99 d,#10100e, |8: 0-0 d,#222119, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-12 #f3e5bc,#10100e, 13-99 d,#10100e, |9: 0-0 d,#222119, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-12 #f3e5bc,#10100e, 13-99 d,#10100e, @@ -370,8 +370,8 @@ |14: 0-0 d,#222119, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-13 #f3e5bc,#10100e, 14-99 d,#10100e, |15: 0-0 d,#222119, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-13 #f3e5bc,#10100e, 14-99 d,#10100e, |16: 0-0 d,#222119, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-13 #f3e5bc,#10100e, 14-99 d,#10100e, -|17: 0-1 #000000,#92c776, 2-2 d,#424f3f, 3-32 #e3e2c2,#424f3f, 33-39 #b7eced,#424f3f, 40-61 #e3e2c2,#424f3f, 62-99 d,#424f3f, -|18: 0-0 d,#8c9366, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-15 #f3e5bc,#10100e, 16-92 d,#10100e, 93-93 d,#343f35, 94-98 #d7d6b6,#343f35, 99-99 d,#343f35, +|17: 0-1 #000000,#8ac874, 2-2 d,#424f40, 3-32 #e3e2c2,#424f40, 33-39 #b5ecec,#424f40, 40-61 #e3e2c2,#424f40, 62-99 d,#424f40, +|18: 0-0 d,#8c9467, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-15 #f3e5bc,#10100e, 16-92 d,#10100e, 93-93 d,#343f36, 94-98 #d7d6b6,#343f36, 99-99 d,#343f36, |19: 0-0 d,#222119, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-17 #f3e5bc,#10100e, 18-99 d,#10100e, |20: 0-0 d,#222119, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-20 #f3e5bc,#10100e, 21-99 d,#10100e, |21: 0-0 d,#222119, 1-1 d,#10100e, 2-6 #696455,#10100e, 7-19 #f3e5bc,#10100e, 20-99 d,#10100e, @@ -399,37 +399,37 @@ |29: 16 Theme orchard_black |30: 17 == style step-forge-black grid=100x31 -|0: 0-70 #c7cacf,#24282c, 71-99 d,#24282c, -|1: 0-1 #ffffff,#6d7867, 2-2 d,#2f3740, 3-34 #d3d6db,#2f3740, 35-99 d,#2f3740, -|2: 0-1 #ffffff,#576676, 2-2 d,#24282c, 3-32 #c7cacf,#24282c, 33-37 #e5c2a2,#24282c, 38-59 #c7cacf,#24282c, 60-99 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d,#121312, 1-1 d,#080808, 2-6 #626262,#080808, 7-19 #bdbdbd,#080808, 20-99 d,#080808, -|21: 0-0 d,#121312, 1-1 d,#080808, 2-6 #626262,#080808, 7-16 #bdbdbd,#080808, 17-99 d,#080808, -|22: 0-0 d,#121312, 1-1 d,#080808, 2-6 #626262,#080808, 7-23 #bdbdbd,#080808, 24-99 d,#080808, -|23: 0-0 d,#121312, 1-1 d,#080808, 2-6 #626262,#080808, 7-22 #bdbdbd,#080808, 23-99 d,#080808, -|24: 0-0 d,#121312, 1-1 d,#080808, 2-6 #626262,#080808, 7-25 #bdbdbd,#080808, 26-99 d,#080808, -|25: 0-0 d,#121312, 1-1 d,#080808, 2-6 #626262,#080808, 7-99 d,#080808, -|26: 0-0 d,#121312, 1-1 d,#080808, 2-6 #626262,#080808, 7-34 #bdbdbd,#080808, 35-99 d,#080808, -|27: 0-0 d,#121312, 1-1 d,#080808, 2-6 #626262,#080808,b 7-17 #bdbdbd,#080808, 18-99 d,#080808, -|28: 0-0 d,#121312, 1-1 d,#080808, 2-6 #626262,#080808, 7-16 #bdbdbd,#080808, 17-99 d,#080808, -|29: 0-0 d,#121312, 1-1 d,#080808, 2-6 #626262,#080808, 7-16 #bdbdbd,#080808, 17-99 d,#080808, -|30: 0-0 d,#121312, 1-1 d,#080808, 2-6 #626262,#080808, 7-16 #bdbdbd,#080808, 17-99 d,#080808, +|0: 0-70 #949494,#121212, 71-99 d,#121212, +|1: 0-1 #ffffff,#826f46, 2-2 d,#121212, 3-34 #949494,#121212, 35-99 d,#121212, +|2: 0-1 #ffffff,#262626, 2-2 d,#121212, 3-59 #949494,#121212, 60-99 d,#121212, +|3: 0-0 d,#444444, 1-1 d,#080808, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-99 d,#080808, +|4: 0-0 d,#444444, 1-1 d,#080808, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-99 d,#080808, +|5: 0-0 d,#444444, 1-1 d,#080808, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-99 d,#080808, +|6: 0-0 d,#444444, 1-1 d,#080808, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-99 d,#080808, +|7: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-99 d,#080808, +|8: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-99 d,#080808, +|9: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-99 d,#080808, +|10: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-99 d,#080808, +|11: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-12 #bdbdbd,#080808, 13-99 d,#080808, +|12: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-99 d,#080808, +|13: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-99 d,#080808, +|14: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-99 d,#080808, +|15: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-99 d,#080808, +|16: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-13 #bdbdbd,#080808, 14-99 d,#080808, +|17: 0-1 #ffffff,#626262, 2-2 d,#121212, 3-61 #949494,#121212, 62-99 d,#121212, +|18: 0-0 d,#444444, 1-1 d,#080808, 2-6 #626262,#080808, 7-20 #bdbdbd,#080808, 21-92 d,#080808, 93-93 d,#121212, 94-98 #949494,#121212, 99-99 d,#121212, +|19: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-20 #bdbdbd,#080808, 21-99 d,#080808, +|20: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-19 #bdbdbd,#080808, 20-99 d,#080808, +|21: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-16 #bdbdbd,#080808, 17-99 d,#080808, +|22: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-23 #bdbdbd,#080808, 24-99 d,#080808, +|23: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-22 #bdbdbd,#080808, 23-99 d,#080808, +|24: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-25 #bdbdbd,#080808, 26-99 d,#080808, +|25: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-99 d,#080808, +|26: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-34 #bdbdbd,#080808, 35-99 d,#080808, +|27: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808,b 7-17 #bdbdbd,#080808, 18-99 d,#080808, +|28: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-16 #bdbdbd,#080808, 17-99 d,#080808, +|29: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-16 #bdbdbd,#080808, 17-99 d,#080808, +|30: 0-0 d,#121212, 1-1 d,#080808, 2-6 #626262,#080808, 7-16 #bdbdbd,#080808, 17-99 d,#080808, == snap step-dark grid=100x31 cursor=7,27 |18: 11 Theme spectrum Theme |19: 12 Theme harvest @@ -583,37 +583,37 @@ |29: 22 Theme acid |30: 23 Theme acme_helix == style step-dark grid=100x31 -|0: 0-70 #969696,#29283a, 71-99 d,#29283a, -|1: 0-1 #ffffff,#86794d, 2-2 d,#29283a, 3-34 #969696,#29283a, 35-99 d,#29283a, -|2: 0-1 #ffffff,#343853, 2-2 d,#29283a, 3-59 #969696,#29283a, 60-99 d,#29283a, -|3: 0-0 d,#515151, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|4: 0-0 d,#515151, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|5: 0-0 d,#515151, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|6: 0-0 d,#515151, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|7: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|8: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|9: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|10: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|11: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|12: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|13: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|14: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|15: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|16: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|17: 0-1 #ffffff,#6643d3, 2-2 d,#29283a, 3-61 #969696,#29283a, 62-99 d,#29283a, -|18: 0-0 d,#515151, 1-1 d,d, 2-6 #5a5a5a,d, 7-92 d,d, 93-93 d,#29283a, 94-98 #969696,#29283a, 99-99 d,#29283a, -|19: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|20: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|21: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|22: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|23: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|24: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|25: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|26: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|27: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d,b 7-99 d,d, -|28: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|29: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, -|30: 0-0 d,#282828, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, +|0: 0-70 #969696,#2c2a3e, 71-99 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62-99 d,#2c2a3e, +|18: 0-0 d,#525252, 1-1 d,d, 2-6 #5a5a5a,d, 7-92 d,d, 93-93 d,#2c2a3e, 94-98 #969696,#2c2a3e, 99-99 d,#2c2a3e, +|19: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, +|20: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, +|21: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, +|22: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, +|23: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, +|24: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, +|25: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, +|26: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, +|27: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d,b 7-99 d,d, +|28: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, +|29: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, +|30: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-99 d,d, == snap step-acme grid=100x31 cursor=7,27 |18: 12 Theme harvest Theme |19: 13 Theme clay @@ -629,37 +629,37 @@ |29: 23 Theme acme_helix |30: 24 Theme adwaita_dark == style step-acme grid=100x31 -|0: 0-70 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7-17 #000000,#ffffea, 18-99 d,#ffffea, +|25: 0-0 d,#99994c, 1-1 d,#ffffea, 2-6 #999980,#ffffea, 7-16 #000000,#ffffea, 17-99 d,#ffffea, +|26: 0-0 d,#99994c, 1-1 d,#ffffea, 2-6 #999980,#ffffea,b 7-16 #000000,#ffffea, 17-99 d,#ffffea, +|27: 0-0 d,#99994c, 1-1 d,#ffffea, 2-6 #999980,#ffffea, 7-16 #000000,#ffffea, 17-99 d,#ffffea, +|28: 0-0 d,#99994c, 1-1 d,#ffffea, 2-6 #999980,#ffffea, 7-22 #000000,#ffffea, 23-99 d,#ffffea, +|29: 0-0 d,#99994c, 1-1 d,#ffffea, 2-6 #999980,#ffffea, 7-24 #000000,#ffffea, 25-99 d,#ffffea, +|30: 0-0 d,#99994c, 1-1 d,#ffffea, 2-6 #999980,#ffffea, 7-25 #000000,#ffffea, 26-99 d,#ffffea, == snap tail grid=100x31 cursor=7,29 |18: 235 Theme wolf_alabaster_dark_bg |19: 236 Theme wolf_alabaster_dark_mono @@ -769,13 +769,8 @@ |29: 27 line 27 |30: 28 line 28 == style picked grid=100x31 -|0: 0-70 #000000,#eaffff, 71-99 d,#eaffff, -|1: 0-1 #000000,#c5a87f, 2-2 d,#eaffff, 3-34 #000000,#eaffff, 35-99 d,#eaffff, |2: 0-1 #ffffff,#663fe0, 2-2 d,#eaffff, 3-59 #000000,#eaffff, 60-99 d,#eaffff, |3: 0-1 d,#ffffea, 2-6 #999980,#ffffea,b 7-12 #000000,#ffffea, 13-99 d,#ffffea, -|4: 0-1 d,#ffffea, 2-6 #999980,#ffffea, 7-12 #000000,#ffffea, 13-99 d,#ffffea, -|5: 0-1 d,#ffffea, 2-6 #999980,#ffffea, 7-12 #000000,#ffffea, 13-99 d,#ffffea, -|6: 0-1 d,#ffffea, 2-6 #999980,#ffffea, 7-12 #000000,#ffffea, 13-99 d,#ffffea, |7: 0-1 d,#ffffea, 2-6 #999980,#ffffea, 7-12 #000000,#ffffea, 13-99 d,#ffffea, |8: 0-1 d,#ffffea, 2-6 #999980,#ffffea, 7-12 #000000,#ffffea, 13-99 d,#ffffea, |9: 0-1 d,#ffffea, 2-6 #999980,#ffffea, 7-12 #000000,#ffffea, 13-99 d,#ffffea, diff --git a/test/web_harness.mjs b/test/web_harness.mjs index 90dd9a19..402e41f4 100644 --- a/test/web_harness.mjs +++ b/test/web_harness.mjs @@ -17,7 +17,7 @@ async function main() { const webDir = path.resolve(process.argv[2]); const wasmBytes = await fs.readFile(path.join(webDir, "pardes.wasm")); const module = await WebAssembly.compile(wasmBytes); - const { DomRenderer, animationTicks, browserHost } = await import(pathToFileURL(path.join(webDir, "app.mjs"))); + const { DomRenderer, browserHost } = await import(pathToFileURL(path.join(webDir, "app.mjs"))); assert.deepEqual( [...new Set(WebAssembly.Module.imports(module).map((entry) => entry.module))], ["pardes"], @@ -40,7 +40,7 @@ async function main() { for (const name of [ "memory", "pardes_init", "pardes_frame", "pardes_frame_ptr", "pardes_key", "pardes_mouse", "pardes_pointer_leave", "pardes_pointer_shape", "pardes_gui_tagline_font_percent", - "pardes_paste", "pardes_tick", "pardes_animation_tick", "pardes_animating", + "pardes_paste", "pardes_tick", "pardes_should_quit", "pardes_deinit", ]) assert.ok(wasm[name], `missing wasm export ${name}`); @@ -85,18 +85,6 @@ async function main() { "DOM did not use the build-time tagline percentage", ); - for (const hz of [60, 120, 144]) { - const clock = { last: null, lag: 0 }; - let ticks = 0; - for (let frame = 0; frame <= hz; frame += 1) { - ticks += animationTicks(clock, frame * 1000 / hz); - } - assert.equal(ticks, 60, `${hz} Hz rAF did not produce 60 core ticks per second`); - } - const stalled = { last: null, lag: 0 }; - assert.equal(animationTicks(stalled, 0), 0); - assert.equal(animationTicks(stalled, 60_000), 4, "suspended tab catch-up was not bounded"); - const firstCell = renderer.cells[0]; const second = draw(); assert.equal(renderer.cells[0], firstCell, "stable frames should reuse DOM nodes"); |