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Fix glslang can't link multiple AST in a single stage

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Root cause:
GlslangToSpv use symbol structure's ptr as a map key, but multiple shader object can build a new AST.
In the AST the the same symbol has different ptr point to their structure, so indext map faild.

solution:
Add a new map glslangTypeToIdMap to map ptr to symbol id, and use symbol id to index memberRemapper.
This commit is contained in:
Roy 2020-01-03 16:21:34 +08:00
parent 6334d594f6
commit 05a5b53208
1 changed files with 23 additions and 9 deletions
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32
SPIRV/GlslangToSpv.cpp
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@ -245,7 +245,9 @@ protected:
std::unordered_map<std::string, spv::Function*> functionMap;
std::unordered_map<const glslang::TTypeList*, spv::Id> structMap[glslang::ElpCount][glslang::ElmCount];
// for mapping glslang block indices to spv indices (e.g., due to hidden members):
std::unordered_map<const glslang::TTypeList*, std::vector<int> > memberRemapper;
std::unordered_map<int, std::vector<int>> memberRemapper;
// for mapping glslang symbol struct to symbol Id
std::unordered_map<const glslang::TTypeList*, int> glslangTypeToIdMap;
std::stack<bool> breakForLoop; // false means break for switch
std::unordered_map<std::string, const glslang::TIntermSymbol*> counterOriginator;
// Map pointee types for EbtReference to their forward pointers
@ -1661,6 +1663,9 @@ void TGlslangToSpvTraverser::dumpSpv(std::vector<unsigned int>& out)
void TGlslangToSpvTraverser::visitSymbol(glslang::TIntermSymbol* symbol)
{
SpecConstantOpModeGuard spec_constant_op_mode_setter(&builder);
if (symbol->getType().isStruct())
glslangTypeToIdMap[symbol->getType().getStruct()] = symbol->getId();
if (symbol->getType().getQualifier().isSpecConstant())
spec_constant_op_mode_setter.turnOnSpecConstantOpMode();
@ -1753,6 +1758,12 @@ void TGlslangToSpvTraverser::visitSymbol(glslang::TIntermSymbol* symbol)
bool TGlslangToSpvTraverser::visitBinary(glslang::TVisit /* visit */, glslang::TIntermBinary* node)
{
builder.setLine(node->getLoc().line, node->getLoc().getFilename());
if (node->getLeft()->getAsSymbolNode() != nullptr && node->getLeft()->getType().isStruct()) {
glslangTypeToIdMap[node->getLeft()->getType().getStruct()] = node->getLeft()->getAsSymbolNode()->getId();
}
if (node->getRight()->getAsSymbolNode() != nullptr && node->getRight()->getType().isStruct()) {
glslangTypeToIdMap[node->getRight()->getType().getStruct()] = node->getRight()->getAsSymbolNode()->getId();
}
SpecConstantOpModeGuard spec_constant_op_mode_setter(&builder);
if (node->getType().getQualifier().isSpecConstant())
@ -1857,9 +1868,12 @@ bool TGlslangToSpvTraverser::visitBinary(glslang::TVisit /* visit */, glslang::T
{
// This may be, e.g., an anonymous block-member selection, which generally need
// index remapping due to hidden members in anonymous blocks.
std::vector<int>& remapper = memberRemapper[node->getLeft()->getType().getStruct()];
assert(remapper.size() > 0);
spvIndex = remapper[glslangIndex];
int glslangId = glslangTypeToIdMap[node->getLeft()->getType().getStruct()];
if (memberRemapper.find(glslangId) != memberRemapper.end()) {
std::vector<int>& remapper = memberRemapper[glslangId];
assert(remapper.size() > 0);
spvIndex = remapper[glslangIndex];
}
}
// normal case for indexing array or structure or block
@ -3483,7 +3497,7 @@ spv::Id TGlslangToSpvTraverser::convertGlslangToSpvType(const glslang::TType& ty
// else, we haven't seen it...
if (type.getBasicType() == glslang::EbtBlock)
memberRemapper[glslangMembers].resize(glslangMembers->size());
memberRemapper[glslangTypeToIdMap[glslangMembers]].resize(glslangMembers->size());
spvType = convertGlslangStructToSpvType(type, glslangMembers, explicitLayout, qualifier);
}
break;
@ -3619,15 +3633,15 @@ spv::Id TGlslangToSpvTraverser::convertGlslangStructToSpvType(const glslang::TTy
if (glslangMember.hiddenMember()) {
++memberDelta;
if (type.getBasicType() == glslang::EbtBlock)
memberRemapper[glslangMembers][i] = -1;
memberRemapper[glslangTypeToIdMap[glslangMembers]][i] = -1;
} else {
if (type.getBasicType() == glslang::EbtBlock) {
if (filterMember(glslangMember)) {
memberDelta++;
memberRemapper[glslangMembers][i] = -1;
memberRemapper[glslangTypeToIdMap[glslangMembers]][i] = -1;
continue;
}
memberRemapper[glslangMembers][i] = i - memberDelta;
memberRemapper[glslangTypeToIdMap[glslangMembers]][i] = i - memberDelta;
}
// modify just this child's view of the qualifier
glslang::TQualifier memberQualifier = glslangMember.getQualifier();
@ -3685,7 +3699,7 @@ void TGlslangToSpvTraverser::decorateStructType(const glslang::TType& type,
glslang::TType& glslangMember = *(*glslangMembers)[i].type;
int member = i;
if (type.getBasicType() == glslang::EbtBlock) {
member = memberRemapper[glslangMembers][i];
member = memberRemapper[glslangTypeToIdMap[glslangMembers]][i];
if (filterMember(glslangMember))
continue;
}