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shader: dual-source blending (Vulkan)

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This commit is contained in:
nmzik
2026-09-17 23:16:51 +04:00
parent cbedf5707f
commit 6493674726
5 changed files with 30 additions and 2 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterModule.cpp
+10 -1
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@@ -553,8 +553,17 @@ void DefineOutputs(EmitterState& state) {
const auto type = uint_output ? TypeU32Vector(state, 4) : TypeF32Vector(state, 4);
binding.variable_id = DefineInterfaceVariable(state, type, spv::StorageClassOutput,
binding.debug_name.c_str());
const bool dual_source = binding.kind == IR::StageOutputKind::Mrt &&
state.program.stage == ShaderType::Pixel &&
state.input_info.pixel->dual_source_blending;
EXIT_NOT_IMPLEMENTED(dual_source && binding.index > 1);
state.builder.AddAnnotation(spv::OpDecorate, binding.variable_id,
spv::DecorationLocation, binding.location);
spv::DecorationLocation,
dual_source ? 0u : binding.location);
if (dual_source) {
state.builder.AddAnnotation(spv::OpDecorate, binding.variable_id,
spv::DecorationIndex, binding.index);
}
break;
}
}