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Better follow HLSL offsets rules (#3575)

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Matrices consuming one vector are treated like vectors for alignment, and
there is no "trailing padding" for matrices and arrays.
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Pavel Asyutchenko 2024-04-18 01:34:28 +02:00 • committed by GitHub
parent 9001ec9aa5
commit 593dbafd0d
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6 changed files with 229 additions and 8 deletions
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4
glslang/MachineIndependent/linkValidate.cpp
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@ -2217,9 +2217,9 @@ int TIntermediate::getBaseAlignment(const TType& type, int& size, int& stride, T
}
// To aid the basic HLSL rule about crossing vec4 boundaries.
bool TIntermediate::improperStraddle(const TType& type, int size, int offset)
bool TIntermediate::improperStraddle(const TType& type, int size, int offset, bool vectorLike)
{
if (! type.isVector() || type.isArray())
if (! vectorLike || type.isArray())
return false;
return size <= 16 ? offset / 16 != (offset + size - 1) / 16