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Implement GL_EXT_scalar_block_layout

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This commit is contained in:
Jeff Bolz
2018-11-14 09:30:53 -06:00
parent 7274bbc27c
commit 7da39ed968
19 changed files with 356 additions and 45 deletions
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9
SPIRV/GlslangToSpv.cpp
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@@ -3459,6 +3459,7 @@ glslang::TLayoutPacking TGlslangToSpvTraverser::getExplicitLayout(const glslang:
switch (type.getQualifier().layoutPacking) {
case glslang::ElpStd140:
case glslang::ElpStd430:
case glslang::ElpScalar:
return type.getQualifier().layoutPacking;
default:
return glslang::ElpNone;
@@ -3470,7 +3471,7 @@ int TGlslangToSpvTraverser::getArrayStride(const glslang::TType& arrayType, glsl
{
int size;
int stride;
glslangIntermediate->getBaseAlignment(arrayType, size, stride, explicitLayout == glslang::ElpStd140, matrixLayout == glslang::ElmRowMajor);
glslangIntermediate->getMemberAlignment(arrayType, size, stride, explicitLayout, matrixLayout == glslang::ElmRowMajor);
return stride;
}
@@ -3485,7 +3486,7 @@ int TGlslangToSpvTraverser::getMatrixStride(const glslang::TType& matrixType, gl
int size;
int stride;
glslangIntermediate->getBaseAlignment(elementType, size, stride, explicitLayout == glslang::ElpStd140, matrixLayout == glslang::ElmRowMajor);
glslangIntermediate->getMemberAlignment(elementType, size, stride, explicitLayout, matrixLayout == glslang::ElmRowMajor);
return stride;
}
@@ -3527,7 +3528,7 @@ void TGlslangToSpvTraverser::updateMemberOffset(const glslang::TType& structType
int memberSize;
int dummyStride;
int memberAlignment = glslangIntermediate->getBaseAlignment(memberType, memberSize, dummyStride, explicitLayout == glslang::ElpStd140, matrixLayout == glslang::ElmRowMajor);
int memberAlignment = glslangIntermediate->getMemberAlignment(memberType, memberSize, dummyStride, explicitLayout, matrixLayout == glslang::ElmRowMajor);
// Adjust alignment for HLSL rules
// TODO: make this consistent in early phases of code:
@@ -3546,7 +3547,7 @@ void TGlslangToSpvTraverser::updateMemberOffset(const glslang::TType& structType
glslang::RoundToPow2(currentOffset, memberAlignment);
// Bump up to vec4 if there is a bad straddle
if (glslangIntermediate->improperStraddle(memberType, memberSize, currentOffset))
if (explicitLayout != glslang::ElpScalar && glslangIntermediate->improperStraddle(memberType, memberSize, currentOffset))
glslang::RoundToPow2(currentOffset, 16);
nextOffset = currentOffset + memberSize;