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HLSL: Add SampleLevel method

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This commit is contained in:
LoopDawg 2016-07-21 15:02:16 -06:00
parent 2f003ac4e6
commit 3ef7852ef6
13 changed files with 2863 additions and 9 deletions
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32
hlsl/hlslParseHelper.cpp
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@ -1189,6 +1189,38 @@ void HlslParseContext::decomposeSampleMethods(const TSourceLoc& loc, TIntermType
break;
}
case EOpMethodSampleLevel:
{
TIntermTyped* argTex = argAggregate->getSequence()[0]->getAsTyped();
TIntermTyped* argSamp = argAggregate->getSequence()[1]->getAsTyped();
TIntermTyped* argCoord = argAggregate->getSequence()[2]->getAsTyped();
TIntermTyped* argLod = argAggregate->getSequence()[3]->getAsTyped();
TIntermTyped* argOffset = nullptr;
const int numArgs = argAggregate->getSequence().size();
if (numArgs == 5) // offset, if present
argOffset = argAggregate->getSequence()[4]->getAsTyped();
const TOperator textureOp = (argOffset == nullptr ? EOpTextureLod : EOpTextureLodOffset);
TIntermAggregate* txsample = new TIntermAggregate(textureOp);
TIntermAggregate* txcombine = handleSamplerTextureCombine(loc, argTex, argSamp);
txsample->getSequence().push_back(txcombine);
txsample->getSequence().push_back(argCoord);
txsample->getSequence().push_back(argLod);
if (argOffset != nullptr)
txsample->getSequence().push_back(argOffset);
txsample->setType(node->getType());
txsample->setLoc(loc);
node = txsample;
break;
}
default:
break; // most pass through unchanged
}