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Fix #2178: Allow specialization constants for texel offsets.

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This commit is contained in:
John Kessenich 2020-04-12 22:56:17 -06:00
parent fd593d5f08
commit 4657244018
4 changed files with 60 additions and 4 deletions
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10
glslang/MachineIndependent/ParseHelper.cpp
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@ -2013,18 +2013,20 @@ void TParseContext::builtInOpCheck(const TSourceLoc& loc, const TFunction& fnCan
if (arg > 0) {
#ifndef GLSLANG_WEB
bool f16ShadowCompare = (*argp)[1]->getAsTyped()->getBasicType() == EbtFloat16 && arg0->getType().getSampler().shadow;
bool f16ShadowCompare = (*argp)[1]->getAsTyped()->getBasicType() == EbtFloat16 &&
arg0->getType().getSampler().shadow;
if (f16ShadowCompare)
++arg;
#endif
if (! (*argp)[arg]->getAsConstantUnion())
if (! (*argp)[arg]->getAsTyped()->getQualifier().isConstant())
error(loc, "argument must be compile-time constant", "texel offset", "");
else {
else if ((*argp)[arg]->getAsConstantUnion()) {
const TType& type = (*argp)[arg]->getAsTyped()->getType();
for (int c = 0; c < type.getVectorSize(); ++c) {
int offset = (*argp)[arg]->getAsConstantUnion()->getConstArray()[c].getIConst();
if (offset > resources.maxProgramTexelOffset || offset < resources.minProgramTexelOffset)
error(loc, "value is out of range:", "texel offset", "[gl_MinProgramTexelOffset, gl_MaxProgramTexelOffset]");
error(loc, "value is out of range:", "texel offset",
"[gl_MinProgramTexelOffset, gl_MaxProgramTexelOffset]");
}
}
}