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SPV: Add NonUniform decoration for OpImages created during lowering.

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By directly creating the OpImage instructions we were not propagating
the appropriate decorations.

Since this had a lot of cases I centralized the OpImage creation
a bit too.
This commit is contained in:
Bas Nieuwenhuizen 2020-09-03 03:04:13 +02:00
parent de949a2afc
commit 58064311be
1 changed files with 7 additions and 15 deletions
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22
SPIRV/GlslangToSpv.cpp
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@ -4753,12 +4753,15 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
const bool isUnsignedResult = node->getType().getBasicType() == glslang::EbtUint;
if (builder.isSampledImage(params.sampler) &&
((cracked.query && node->getOp() != glslang::EOpTextureQueryLod) || cracked.fragMask || cracked.fetch)) {
params.sampler = builder.createUnaryOp(spv::OpImage, builder.getImageType(params.sampler), params.sampler);
if (imageType.getQualifier().isNonUniform()) {
builder.addDecoration(params.sampler, spv::DecorationNonUniformEXT);
}
}
// Check for queries
if (cracked.query) {
// OpImageQueryLod works on a sampled image, for other queries the image has to be extracted first
if (node->getOp() != glslang::EOpTextureQueryLod && builder.isSampledImage(params.sampler))
params.sampler = builder.createUnaryOp(spv::OpImage, builder.getImageType(params.sampler), params.sampler);
switch (node->getOp()) {
case glslang::EOpImageQuerySize:
case glslang::EOpTextureQuerySize:
@ -5012,10 +5015,6 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
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;
@ -5076,13 +5075,6 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
bias = true;
}
// See if the sampler param should really be just the SPV image part
if (cracked.fetch) {
// a fetch needs to have the image extracted first
if (builder.isSampledImage(params.sampler))
params.sampler = builder.createUnaryOp(spv::OpImage, builder.getImageType(params.sampler), params.sampler);
}
#ifndef GLSLANG_WEB
if (cracked.gather) {
const auto& sourceExtensions = glslangIntermediate->getRequestedExtensions();