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Implement the extension GL_AMD_shader_fragment_mask

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This commit is contained in:
amhagan
2017-06-13 16:53:02 -04:00
committed by Rex Xu
parent d004e5ca4c
commit 05506bb874
12 changed files with 288 additions and 8 deletions
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43
SPIRV/GlslangToSpv.cpp
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@@ -3204,9 +3204,7 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
glslang::TCrackedTextureOp cracked;
node->crackTexture(sampler, cracked);
const bool isUnsignedResult =
node->getType().getBasicType() == glslang::EbtUint64 ||
node->getType().getBasicType() == glslang::EbtUint;
const bool isUnsignedResult = node->getType().getBasicType() == glslang::EbtUint;
// Check for queries
if (cracked.query) {
@@ -3358,6 +3356,45 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
}
}
#ifdef AMD_EXTENSIONS
// Check for fragment mask functions other than queries
if (cracked.fragMask) {
assert(sampler.ms);
auto opIt = arguments.begin();
std::vector<spv::Id> operands;
// Extract the image if necessary
if (builder.isSampledImage(params.sampler))
params.sampler = builder.createUnaryOp(spv::OpImage, builder.getImageType(params.sampler), params.sampler);
operands.push_back(params.sampler);
++opIt;
if (sampler.isSubpass()) {
// add on the (0,0) coordinate
spv::Id zero = builder.makeIntConstant(0);
std::vector<spv::Id> comps;
comps.push_back(zero);
comps.push_back(zero);
operands.push_back(builder.makeCompositeConstant(builder.makeVectorType(builder.makeIntType(32), 2), comps));
}
for (; opIt != arguments.end(); ++opIt)
operands.push_back(*opIt);
spv::Op fragMaskOp = spv::OpNop;
if (node->getOp() == glslang::EOpFragmentMaskFetch)
fragMaskOp = spv::OpFragmentMaskFetchAMD;
else if (node->getOp() == glslang::EOpFragmentFetch)
fragMaskOp = spv::OpFragmentFetchAMD;
builder.addExtension(spv::E_SPV_AMD_shader_fragment_mask);
builder.addCapability(spv::CapabilityFragmentMaskAMD);
return builder.createOp(fragMaskOp, resultType(), operands);
}
#endif
// Check for texture functions other than queries
bool sparse = node->isSparseTexture();
bool cubeCompare = sampler.dim == glslang::EsdCube && sampler.arrayed && sampler.shadow;