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Finish porting cell vertex shader

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Kovid Goyal
2026-07-02 12:57:38 +05:30
parent 5e525dba6b
commit d114cb1554
1 changed files with 13 additions and 0 deletions
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13
kitty/shaders/cell.slang
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@@ -453,6 +453,19 @@ VertexOutput vertex_main(
vo.decoration_fg = override_foreground_color(vo.decoration_fg, background_rgb, vo.colored_sprite);
foreground = override_foreground_color(foreground, background_rgb, vo.colored_sprite);
}
if (!ONLY_FOREGROUND) {
float4 bgpremul = vec4_premul(background_rgb, bg_alpha);
// draw_bg_bitfield has bit 0 set to draw default bg cells and bit 1 set to draw non-default bg cells
float cell_has_non_default_bg = 1.f - cell_has_default_bg;
uint draw_bg_mask = uint(2.f * cell_has_non_default_bg + cell_has_default_bg); // 1 if has default bg else 2
float draw_bg = step(0.5, float(draw_bg_bitfield & draw_bg_mask));
bgpremul *= draw_bg;
vo.effective_background_premul = bgpremul;
}
if (!ONLY_BACKGROUND) vo.cell_foreground = foreground;
return vo;
}