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render: build indexed triangles for merged ES/GS shaders

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Co-authored-by: shadowbeat070 <70843316+shadowbeat070@users.noreply.github.com>
This commit is contained in:
nmzik
2026-09-05 14:59:28 +04:00
parent 843c0c59be
commit 3ab372ccec
6 changed files with 163 additions and 19 deletions
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src/graphics/shader/shader.h
+10
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@@ -78,6 +78,16 @@ struct ShaderMeshInputInfo: ShaderWorkgroupInputInfo {
uint32_t max_vertices = 0;
uint32_t max_primitives = 0;
uint32_t provoking_vertex = 0;
[[nodiscard]] constexpr uint32_t InputPrimitiveStep() const {
return input_primitive == static_cast<uint32_t>(Prospero::PrimitiveType::kTriList) ? 3u : 1u;
}
[[nodiscard]] constexpr uint32_t InputPrimitiveCount(uint32_t vertices) const {
return vertices < 3u ? 0u : (vertices - 3u) / InputPrimitiveStep() + 1u;
}
[[nodiscard]] constexpr uint32_t InputVertexCount(uint32_t primitives) const {
return primitives == 0u ? 0u : (primitives - 1u) * InputPrimitiveStep() + 3u;
}
};
struct ShaderVertexInputInfo {