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Fix pixel shader input aliases

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This commit is contained in:
nmzik
2026-09-15 20:46:51 +04:00
parent 629ae1ac05
commit 441367b1a1
5 changed files with 174 additions and 10 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterModule.cpp
+13
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@@ -388,6 +388,19 @@ void DefineInputs(EmitterState& state) {
}
}
for (auto& input: state.inputs) {
if (state.program.stage == ShaderType::Pixel &&
input.kind == IR::StageInputKind::Parameter) {
const auto location = PixelParameterLocation(state, input.location);
const auto alias = std::ranges::find_if(state.inputs, [&](const InputBinding& other) {
return other.kind == IR::StageInputKind::Parameter && other.variable_id != 0 &&
PixelParameterLocation(state, other.location) == location;
});
if (alias != state.inputs.end()) {
EXIT_IF(alias->per_vertex != input.per_vertex);
input.variable_id = alias->variable_id;
continue;
}
}
uint32_t type = TypeU32(state);
switch (input.kind) {
case IR::StageInputKind::VertexIndex: