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Preserve signedness in SPV image query ops

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The AST->SPIRV translation of image queries was dropping signedness,
causing some validation troubles.
This commit is contained in:
steve-lunarg 2017-03-10 12:45:50 -07:00
parent 757bc87445
commit 0b5c2ae70e
8 changed files with 1025 additions and 1021 deletions
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10
SPIRV/SpvBuilder.cpp
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@ -1662,7 +1662,7 @@ Id Builder::createTextureCall(Decoration precision, Id resultType, bool sparse,
}
// Comments in header
Id Builder::createTextureQueryCall(Op opCode, const TextureParameters& parameters)
Id Builder::createTextureQueryCall(Op opCode, const TextureParameters& parameters, bool isUnsignedResult)
{
// All these need a capability
addCapability(CapabilityImageQuery);
@ -1695,10 +1695,12 @@ Id Builder::createTextureQueryCall(Op opCode, const TextureParameters& parameter
}
if (isArrayedImageType(getImageType(parameters.sampler)))
++numComponents;
Id intType = isUnsignedResult ? makeUintType(32) : makeIntType(32);
if (numComponents == 1)
resultType = makeIntType(32);
resultType = intType;
else
resultType = makeVectorType(makeIntType(32), numComponents);
resultType = makeVectorType(intType, numComponents);
break;
}
@ -1707,7 +1709,7 @@ Id Builder::createTextureQueryCall(Op opCode, const TextureParameters& parameter
break;
case OpImageQueryLevels:
case OpImageQuerySamples:
resultType = makeIntType(32);
resultType = isUnsignedResult ? makeUintType(32) : makeIntType(32);
break;
default:
assert(0);