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Add support for GL_EXT_samplerless_texture_functions

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Alex Smith 2018-06-23 09:34:24 +01:00 • committed by Alex Smith
parent 0b964b3c35
commit e47bfaedf6
10 changed files with 229 additions and 20 deletions
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25
glslang/MachineIndependent/ParseHelper.cpp
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@ -1705,6 +1705,31 @@ void TParseContext::builtInOpCheck(const TSourceLoc& loc, const TFunction& fnCan
break;
}
// Texture operations on texture objects (aside from texelFetch on a
// textureBuffer) require EXT_samplerless_texture_functions.
switch (callNode.getOp()) {
case EOpTextureQuerySize:
case EOpTextureQueryLevels:
case EOpTextureQuerySamples:
case EOpTextureFetch:
case EOpTextureFetchOffset:
{
const TSampler& sampler = fnCandidate[0].type->getSampler();
const bool isTexture = sampler.isTexture() && !sampler.isCombined();
const bool isBuffer = sampler.dim == EsdBuffer;
const bool isFetch = callNode.getOp() == EOpTextureFetch || callNode.getOp() == EOpTextureFetchOffset;
if (isTexture && (!isBuffer || !isFetch))
requireExtensions(loc, 1, &E_GL_EXT_samplerless_texture_functions, fnCandidate.getName().c_str());
break;
}
default:
break;
}
if (callNode.getOp() > EOpSubgroupGuardStart && callNode.getOp() < EOpSubgroupGuardStop) {
// these require SPIR-V 1.3
if (spvVersion.spv > 0 && spvVersion.spv < EShTargetSpv_1_3)