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[Feat, Test] (ShaderTranspiler, MG_Test): demote gl_ViewportIndex to a plain global for ESSL targets

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swung0x48
2026-08-20 05:29:08 -04:00
parent 7940a09491
commit 15e36ad1e9
7 changed files with 558 additions and 0 deletions
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MobileGL/MG_Util/ShaderTranspiler/ShaderCompiler.cpp
+16
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@@ -20,6 +20,7 @@
#include "SpirvPasses/DecoratePositionInvariantPass.h"
#include "SpirvPasses/DemoteFloat64Pass.h"
#include "SpirvPasses/LowerDrawParametersPass.h"
#include "SpirvPasses/LowerViewportIndexPass.h"
#include "SpirvPasses/PackDoubleVertexInputsPass.h"
#include "SpirvPasses/FlattenXfbInterfaceBlocksPass.h"
#include "SpirvPasses/SplitArrayVertexInputsPass.h"
@@ -635,6 +636,21 @@ namespace MobileGL {
outputBinary, true, enableSpirvValidation);
}
bool ShaderCompiler::LowerViewportIndexForEssl(const Vector<Uint32>& inputBinary,
Vector<uint32_t>& outputBinary,
const bool enableSpirvValidation) {
using namespace spvtools;
Optimizer optimizer(SPV_ENV_VULKAN_1_1);
optimizer.RegisterPass(LowerViewportIndexPass::CreateLowerViewportIndexPass());
return RunOptimizerChecked("LowerViewportIndexForEssl", optimizer, inputBinary,
outputBinary, true, enableSpirvValidation);
}
bool ShaderCompiler::DeclaresViewportIndexBuiltin(const Vector<Uint32>& binary) {
return LowerViewportIndexPass::DeclaresViewportIndexBuiltin(binary);
}
bool ShaderCompiler::SplitArrayVertexInputsForEssl(const Vector<Uint32>& inputBinary,
Vector<uint32_t>& outputBinary,
const bool enableSpirvValidation) {