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SPV: Support the new OpCode - OpImageSparseRead

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This commit is contained in:
Rex Xu
2016-02-19 22:24:03 +08:00
parent 5047c6f7a7
commit 5eafa472d3
3 changed files with 116 additions and 33 deletions
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32
SPIRV/GlslangToSpv.cpp
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@@ -2087,7 +2087,7 @@ void TGlslangToSpvTraverser::translateArguments(const glslang::TIntermAggregate&
glslang::TSampler sampler = {};
bool cubeCompare = false;
if (node.isTexture()) {
if (node.isTexture() || node.isImage()) {
sampler = glslangArguments[0]->getAsTyped()->getType().getSampler();
cubeCompare = sampler.dim == glslang::EsdCube && sampler.arrayed && sampler.shadow;
}
@@ -2110,6 +2110,10 @@ void TGlslangToSpvTraverser::translateArguments(const glslang::TIntermAggregate&
if (i == 0)
lvalue = true;
break;
case glslang::EOpSparseImageLoad:
if ((sampler.ms && i == 3) || (! sampler.ms && i == 2))
lvalue = true;
break;
case glslang::EOpSparseTexture:
if ((cubeCompare && i == 3) || (! cubeCompare && i == 2))
lvalue = true;
@@ -2253,9 +2257,9 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
operands.push_back(spv::ImageOperandsSampleMask);
operands.push_back(*opIt);
}
return builder.createOp(spv::OpImageRead, convertGlslangToSpvType(node->getType()), operands);
if (builder.getImageTypeFormat(builder.getImageType(operands.front())) == spv::ImageFormatUnknown)
builder.addCapability(spv::CapabilityStorageImageReadWithoutFormat);
return builder.createOp(spv::OpImageRead, convertGlslangToSpvType(node->getType()), operands);
} else if (node->getOp() == glslang::EOpImageStore) {
if (sampler.ms) {
operands.push_back(*(opIt + 1));
@@ -2267,9 +2271,27 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
if (builder.getImageTypeFormat(builder.getImageType(operands.front())) == spv::ImageFormatUnknown)
builder.addCapability(spv::CapabilityStorageImageWriteWithoutFormat);
return spv::NoResult;
} else if (node->isSparseImage()) {
spv::MissingFunctionality("sparse image functions");
return spv::NoResult;
} else if (node->getOp() == glslang::EOpSparseImageLoad) {
builder.addCapability(spv::CapabilitySparseResidency);
if (builder.getImageTypeFormat(builder.getImageType(operands.front())) == spv::ImageFormatUnknown)
builder.addCapability(spv::CapabilityStorageImageReadWithoutFormat);
if (sampler.ms) {
operands.push_back(spv::ImageOperandsSampleMask);
operands.push_back(*opIt++);
}
// Create the return type that was a special structure
spv::Id texelOut = *opIt;
spv::Id typeId0 = convertGlslangToSpvType(node->getType());
spv::Id typeId1 = builder.getDerefTypeId(texelOut);
spv::Id resultTypeId = builder.makeStructResultType(typeId0, typeId1);
spv::Id resultId = builder.createOp(spv::OpImageSparseRead, resultTypeId, operands);
// Decode the return type
builder.createStore(builder.createCompositeExtract(resultId, typeId1, 1), texelOut);
return builder.createCompositeExtract(resultId, typeId0, 0);
} else {
// Process image atomic operations