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Implement the extension GL_AMD_texture_gather_bias_lod

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This commit is contained in:
Rex Xu 2016-11-17 17:47:59 +08:00
parent 94c18a84cd
commit 225e0fcadd
12 changed files with 770 additions and 11 deletions
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47
glslang/MachineIndependent/ParseHelper.cpp
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@ -1442,9 +1442,56 @@ void TParseContext::builtInOpCheck(const TSourceLoc& loc, const TFunction& fnCan
error(loc, "must be a compile-time constant:", feature, "component argument");
}
#ifdef AMD_EXTENSIONS
bool bias = false;
if (callNode.getOp() == EOpTextureGather)
bias = fnCandidate.getParamCount() > 3;
else if (callNode.getOp() == EOpTextureGatherOffset ||
callNode.getOp() == EOpTextureGatherOffsets)
bias = fnCandidate.getParamCount() > 4;
if (bias) {
featureString = fnCandidate.getName() + "with bias argument";
feature = featureString.c_str();
profileRequires(loc, ~EEsProfile, 450, nullptr, feature);
requireExtensions(loc, 1, &E_GL_AMD_texture_gather_bias_lod, feature);
}
#endif
break;
}
#ifdef AMD_EXTENSIONS
case EOpSparseTextureGather:
case EOpSparseTextureGatherOffset:
case EOpSparseTextureGatherOffsets:
{
bool bias = false;
if (callNode.getOp() == EOpSparseTextureGather)
bias = fnCandidate.getParamCount() > 4;
else if (callNode.getOp() == EOpSparseTextureGatherOffset ||
callNode.getOp() == EOpSparseTextureGatherOffsets)
bias = fnCandidate.getParamCount() > 5;
if (bias) {
TString featureString = fnCandidate.getName() + "with bias argument";
const char* feature = featureString.c_str();
profileRequires(loc, ~EEsProfile, 450, nullptr, feature);
requireExtensions(loc, 1, &E_GL_AMD_texture_gather_bias_lod, feature);
}
break;
}
case EOpSparseTextureGatherLod:
case EOpSparseTextureGatherLodOffset:
case EOpSparseTextureGatherLodOffsets:
{
requireExtensions(loc, 1, &E_GL_ARB_sparse_texture2, fnCandidate.getName().c_str());
break;
}
#endif
case EOpTextureOffset:
case EOpTextureFetchOffset:
case EOpTextureProjOffset: