The GUI embeds its shaders' GLSL from shaders/ always: the 14 prebuilt copies, identical to their sources, go, and so does the label saying which was used

shaders/prebuilt/*.glsl were byte-identical to shaders/X.glsl or to prefix.glsl + post/X.glsl (checked with cmp, all 14), kept only so a -Dprebuilt-shaders build could name them; EffectCode and Config then labelled the GUI's shader source as live or prebuilt. The GUI embeds shaderSource (a concatenation, no glslc) either way now; the prebuilt SPIR-V stays, and zig build shaders refreshes only it. Config's report and EffectCode lose their GUI shader source line.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 0 insertions, 82 deletions

diff --git a/shaders/prebuilt/ui.vert.glsl b/shaders/prebuilt/ui.vert.glsl
deleted file mode 100644
index de22adee..00000000
--- a/shaders/prebuilt/ui.vert.glsl
+++ /dev/null
@@ -1,82 +0,0 @@
-#version 450
-
-// Terminal cell renderer. The CPU uploads one instance per visible cell; this
-// shader expands each instance into a two-triangle quad with gl_VertexIndex.
-// The fragment shader mixes fg/bg by the atlas's alpha (a glyph mask in the R
-// channel), so background fills and glyph foregrounds draw in a single pass.
-
-layout(location = 0) in vec4 a_rect; // x0, y0, x1, y1
-layout(location = 1) in vec4 a_uv_rect; // u0, v0, u1, v1
-layout(location = 2) in vec3 a_fg;
-layout(location = 3) in vec3 a_bg;
-// Final and presented panel rectangles in NDC. The CPU still uploads logical
-// final cells; this shader is the only place transition geometry is applied.
-layout(location = 4) in vec4 a_panel_rect;
-layout(location = 5) in vec4 a_present_rect;
-// effect id, eased-progress float bits, pane serial, local row/column packed
-// into one uint. The FIVE high effect bits are flags — the frozen-old cell
-// layer, a see-through cell background, an opaque block-cursor fill, a soft
-// shadow (decor.frag.glsl) or dotted page ground (ui.frag.glsl), and a
-// checker (decor) or a file name's shadow (ui) — so 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;
-    vec2 uv;
-    int corner = gl_VertexIndex % 6;
-    if (corner == 0) {
-        pos = vec2(a_rect.x, a_rect.y);
-        uv = vec2(a_uv_rect.x, a_uv_rect.y);
-        v_cell_uv = vec2(0.0, 0.0);
-    } else if (corner == 1) {
-        pos = vec2(a_rect.z, a_rect.y);
-        uv = vec2(a_uv_rect.z, a_uv_rect.y);
-        v_cell_uv = vec2(1.0, 0.0);
-    } else if (corner == 2) {
-        pos = vec2(a_rect.z, a_rect.w);
-        uv = vec2(a_uv_rect.z, a_uv_rect.w);
-        v_cell_uv = vec2(1.0, 1.0);
-    } else if (corner == 3) {
-        pos = vec2(a_rect.x, a_rect.y);
-        uv = vec2(a_uv_rect.x, a_uv_rect.y);
-        v_cell_uv = vec2(0.0, 0.0);
-    } else if (corner == 4) {
-        pos = vec2(a_rect.z, a_rect.w);
-        uv = vec2(a_uv_rect.z, a_uv_rect.w);
-        v_cell_uv = vec2(1.0, 1.0);
-    } else {
-        pos = vec2(a_rect.x, a_rect.w);
-        uv = vec2(a_uv_rect.x, a_uv_rect.w);
-        v_cell_uv = vec2(0.0, 1.0);
-    }
-
-    uint effect = a_effect.x & 0x07ffffffu;
-    if (effect == 1u || effect == 2u || effect == 5u) {
-        // NDC y points up, so a top-left/bottom-right box has a NEGATIVE y
-        // delta. Preserve that sign or every local y is mirrored/outside.
-        vec2 panel_size = a_panel_rect.zw - a_panel_rect.xy;
-        panel_size.x = abs(panel_size.x) < 0.000001 ? 0.000001 : panel_size.x;
-        panel_size.y = abs(panel_size.y) < 0.000001 ? -0.000001 : panel_size.y;
-        vec2 within = (pos - a_panel_rect.xy) / panel_size;
-        pos = mix(a_present_rect.xy, a_present_rect.zw, within);
-    }
-    v_uv = uv;
-    v_fg = a_fg;
-    v_bg = a_bg;
-    v_effect = a_effect;
-    v_clip = a_clip;
-    gl_Position = vec4(pos, 0.0, 1.0);
-}