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Fix resizing of gl_PrimitiveIndicesNV[] to max_primitives*geomSize

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- This change also allows redeclaration of gl_PrimitiveIndicesNV and
  adds error checks against incorrect explicit array size.
- Also modifies gtests to check array bound limits and redeclare gl_PrimitiveIndicesNV[].
This commit is contained in:
Sahil Parmar 2019-02-11 15:12:13 -08:00
parent 05d12a9461
commit ab027bef3d
6 changed files with 106 additions and 64 deletions
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57
glslang/MachineIndependent/ParseHelper.cpp
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@ -572,7 +572,7 @@ void TParseContext::handleIoResizeArrayAccess(const TSourceLoc& /*loc*/, TInterm
// fix array size, if it can be fixed and needs to be fixed (will allow variable indexing)
if (symbolNode->getType().isUnsizedArray()) {
int newSize = getIoArrayImplicitSize(symbolNode->getType().getQualifier().isPerPrimitive());
int newSize = getIoArrayImplicitSize(symbolNode->getType().getQualifier());
if (newSize > 0)
symbolNode->getWritableType().changeOuterArraySize(newSize);
}
@ -586,9 +586,9 @@ void TParseContext::handleIoResizeArrayAccess(const TSourceLoc& /*loc*/, TInterm
// Types without an array size will be given one.
// Types already having a size that is wrong will get an error.
//
void TParseContext::checkIoArraysConsistency(const TSourceLoc& loc, bool tailOnly, bool isPerPrimitive)
void TParseContext::checkIoArraysConsistency(const TSourceLoc &loc, const TQualifier &qualifier, bool tailOnly)
{
int requiredSize = getIoArrayImplicitSize(isPerPrimitive);
int requiredSize = getIoArrayImplicitSize(qualifier);
if (requiredSize == 0)
return;
@ -603,9 +603,15 @@ void TParseContext::checkIoArraysConsistency(const TSourceLoc& loc, bool tailOnl
feature = "vertices";
#ifdef NV_EXTENSIONS
else if (language == EShLangMeshNV) {
feature = isPerPrimitive ? "max_primitives" : "max_vertices";
}
else if (language == EShLangMeshNV) {
if (qualifier.builtIn == EbvPrimitiveIndicesNV) {
TLayoutGeometry outPrimitive = intermediate.getOutputPrimitive();
TString featureString = "max_primitives*";
featureString += TQualifier::getGeometryString(outPrimitive);
feature = featureString.c_str();
} else
feature = qualifier.isPerPrimitive() ? "max_primitives" : "max_vertices";
}
#endif
else
feature = "unknown";
@ -619,21 +625,24 @@ void TParseContext::checkIoArraysConsistency(const TSourceLoc& loc, bool tailOnl
checkIoArrayConsistency(loc, requiredSize, feature, ioArraySymbolResizeList[i]->getWritableType(), ioArraySymbolResizeList[i]->getName());
}
int TParseContext::getIoArrayImplicitSize(bool isPerPrimitive) const
int TParseContext::getIoArrayImplicitSize(const TQualifier& qualifier) const
{
unsigned int maxVertices = intermediate.getVertices() != TQualifier::layoutNotSet ? intermediate.getVertices() : 0;
if (language == EShLangGeometry)
return TQualifier::mapGeometryToSize(intermediate.getInputPrimitive());
else if (language == EShLangTessControl)
return intermediate.getVertices() != TQualifier::layoutNotSet ? intermediate.getVertices() : 0;
return maxVertices;
#ifdef NV_EXTENSIONS
else if (language == EShLangFragment)
return 3; //Number of vertices for Fragment shader is always three.
else if (language == EShLangMeshNV) {
if (isPerPrimitive) {
return intermediate.getPrimitives() != TQualifier::layoutNotSet ? intermediate.getPrimitives() : 0;
} else {
return intermediate.getVertices() != TQualifier::layoutNotSet ? intermediate.getVertices() : 0;
}
unsigned int maxPrimitives = intermediate.getPrimitives() != TQualifier::layoutNotSet ? intermediate.getPrimitives() : 0;
if (qualifier.builtIn == EbvPrimitiveIndicesNV)
return maxPrimitives * TQualifier::mapGeometryToSize(intermediate.getOutputPrimitive());
else if (qualifier.isPerPrimitive())
return maxPrimitives;
else
return maxVertices;
}
#endif
@ -1386,7 +1395,7 @@ TIntermTyped* TParseContext::handleLengthMethod(const TSourceLoc& loc, TFunction
#endif
)
{
length = getIoArrayImplicitSize(type.getQualifier().isPerPrimitive());
length = getIoArrayImplicitSize(type.getQualifier());
}
}
if (length == 0) {
@ -3730,7 +3739,7 @@ void TParseContext::declareArray(const TSourceLoc& loc, const TString& identifie
if (! symbolTable.atBuiltInLevel()) {
if (isIoResizeArray(type)) {
ioArraySymbolResizeList.push_back(symbol);
checkIoArraysConsistency(loc, true, type.getQualifier().isPerPrimitive());
checkIoArraysConsistency(loc, symbol->getType().getQualifier(), true);
} else
fixIoArraySize(loc, symbol->getWritableType());
}
@ -3783,7 +3792,7 @@ void TParseContext::declareArray(const TSourceLoc& loc, const TString& identifie
existingType.updateArraySizes(type);
if (isIoResizeArray(type))
checkIoArraysConsistency(loc, false, type.getQualifier().isPerPrimitive());
checkIoArraysConsistency(loc, symbol->getType().getQualifier(), true);
}
// Policy and error check for needing a runtime sized array.
@ -3939,6 +3948,7 @@ TSymbol* TParseContext::redeclareBuiltinVariable(const TSourceLoc& loc, const TS
#ifdef NV_EXTENSIONS
identifier == "gl_SampleMask" ||
identifier == "gl_Layer" ||
identifier == "gl_PrimitiveIndicesNV" ||
#endif
identifier == "gl_TexCoord") {
@ -4018,7 +4028,11 @@ TSymbol* TParseContext::redeclareBuiltinVariable(const TSourceLoc& loc, const TS
error(loc, "all redeclarations must use the same depth layout on", "redeclaration", symbol->getName().c_str());
}
}
else if (identifier == "gl_FragStencilRefARB") {
else if (
#ifdef NV_EXTENSIONS
identifier == "gl_PrimitiveIndicesNV" ||
#endif
identifier == "gl_FragStencilRefARB") {
if (qualifier.hasLayout())
error(loc, "cannot apply layout qualifier to", "redeclaration", symbol->getName().c_str());
if (qualifier.storage != EvqVaryingOut)
@ -4270,7 +4284,7 @@ void TParseContext::redeclareBuiltinBlock(const TSourceLoc& loc, TTypeList& newT
// Tracking for implicit sizing of array
if (isIoResizeArray(block->getType())) {
ioArraySymbolResizeList.push_back(block);
checkIoArraysConsistency(loc, true, block->getType().getQualifier().isPerPrimitive());
checkIoArraysConsistency(loc, block->getType().getQualifier(), true);
} else if (block->getType().isArray())
fixIoArraySize(loc, block->getWritableType());
@ -7102,7 +7116,7 @@ void TParseContext::declareBlock(const TSourceLoc& loc, TTypeList& typeList, con
// fix up
if (isIoResizeArray(blockType)) {
ioArraySymbolResizeList.push_back(&variable);
checkIoArraysConsistency(loc, true, blockType.getQualifier().isPerPrimitive());
checkIoArraysConsistency(loc, blockType.getQualifier(), true);
} else
fixIoArraySize(loc, variable.getWritableType());
@ -7489,7 +7503,7 @@ void TParseContext::updateStandaloneQualifierDefaults(const TSourceLoc& loc, con
error(loc, "cannot change previously set layout value", id, "");
if (language == EShLangTessControl)
checkIoArraysConsistency(loc);
checkIoArraysConsistency(loc, publicType.qualifier);
}
#ifdef NV_EXTENSIONS
if (publicType.shaderQualifiers.primitives != TQualifier::layoutNotSet) {
@ -7526,7 +7540,7 @@ void TParseContext::updateStandaloneQualifierDefaults(const TSourceLoc& loc, con
#endif
if (intermediate.setInputPrimitive(publicType.shaderQualifiers.geometry)) {
if (language == EShLangGeometry)
checkIoArraysConsistency(loc);
checkIoArraysConsistency(loc, publicType.qualifier);
} else
error(loc, "cannot change previously set input primitive", TQualifier::getGeometryString(publicType.shaderQualifiers.geometry), "");
break;
@ -7835,3 +7849,4 @@ TIntermNode* TParseContext::addSwitch(const TSourceLoc& loc, TIntermTyped* expre
}
} // end namespace glslang