From f67fec978a9296c651ec06bd2f43686d34ff86ee Mon Sep 17 00:00:00 2001
From: Gabriel Schneider <gbrls@0x4200.cafe>
Date: Fri, 14 Aug 2026 13:40:29 -0300
Subject: look: richer path/range parsing, pdf rendering, corner-drag and
 stepgrain snapshots

---
 build.zig | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'build.zig')

diff --git a/build.zig b/build.zig
index 6e311072..80e995b6 100644
--- a/build.zig
+++ b/build.zig
@@ -122,12 +122,15 @@ pub fn build(b: *std.Build) void {
     const mupdf_check = b.step("mupdf-check", "compile, link, render, and search docs/design.pdf with MuPDF");
     const pdf_bench_step = b.step("pdf-bench", "benchmark real MuPDF page rendering (-- [--json] [--reps N] [--warmup N] [--path FILE] [--page N] [--pages N])");
     const pdf_sections_bench_step = b.step("pdf-sections-bench", "benchmark PDF outline/sections paths in ReleaseFast (-Doptimize=ReleaseFast -- [--json] [--reps N] [--warmup N])");
+    const pdf_scroll_bench_step = b.step("pdf-scroll-bench", "benchmark fast continuous-strip PDF scrolling in ReleaseFast (-Doptimize=ReleaseFast -- [--json] [--reps N] [--warmup N] [--path FILE])");
     if (!enable_mupdf)
         mupdf_check.dependOn(&b.addFail("mupdf-check is unavailable with -Dmupdf=false").step);
     if (!enable_mupdf)
         pdf_bench_step.dependOn(&b.addFail("pdf-bench is unavailable with -Dmupdf=false").step);
     if (!enable_mupdf)
         pdf_sections_bench_step.dependOn(&b.addFail("pdf-sections-bench is unavailable with -Dmupdf=false").step);
+    if (!enable_mupdf)
+        pdf_scroll_bench_step.dependOn(&b.addFail("pdf-scroll-bench is unavailable with -Dmupdf=false").step);
 
     // The other half of -Dprebuilt-shaders: recompile every shader and write
     // the SPIR-V back into shaders/prebuilt/, which is TRACKED rather than
@@ -488,6 +491,29 @@ pub fn build(b: *std.Build) void {
             if (b.args) |args| run_pdf_sections_bench.addArgs(args);
             run_pdf_sections_bench.setCwd(b.path("."));
             pdf_sections_bench_step.dependOn(&run_pdf_sections_bench.step);
+
+            // The fling scoreboard. Same real-core wiring as the sections
+            // bench: what it measures is one shell frame — a whole batch of
+            // wheel notches through update() followed by a single render() —
+            // so it needs the production core, not the raster wrapper alone.
+            const pdf_scroll_bench = b.addExecutable(.{
+                .name = "pardes-pdf-scroll-bench",
+                .root_module = b.createModule(.{
+                    .target = target,
+                    .optimize = .ReleaseFast,
+                    .root_source_file = b.path("test/pdf_scroll_bench.zig"),
+                    .link_libc = true,
+                }),
+            });
+            pdf_scroll_bench.root_module.addImport("pardes", hx_core_mod);
+            pdf_scroll_bench.root_module.addImport("mupdf", mupdf_mod);
+            const scroll_bench_opts = b.addOptions();
+            scroll_bench_opts.addOption(bool, "release_fast_core", optimize == .ReleaseFast);
+            pdf_scroll_bench.root_module.addOptions("pdf_scroll_bench_config", scroll_bench_opts);
+            const run_pdf_scroll_bench = b.addRunArtifact(pdf_scroll_bench);
+            if (b.args) |args| run_pdf_scroll_bench.addArgs(args);
+            run_pdf_scroll_bench.setCwd(b.path("."));
+            pdf_scroll_bench_step.dependOn(&run_pdf_scroll_bench.step);
         }
     }
 
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