BeeEngine/glslang-zig
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

HLSL: Pass opaques by local copy, instead of by interface original.

Browse source 
Also, remove assumption that if something is opaque that it
must be in the UniformConstant storage class.

This allows function declarations to know all parameters will
be in the Function storage class.
This commit is contained in:
John Kessenich 2017-09-08 02:38:07 -06:00 • committed by GregF
parent 15fa7ef5f5
commit bed4e4f7e4
12 changed files with 976 additions and 841 deletions
Download patch file Download diff file Expand all files Collapse all files

75
SPIRV/GlslangToSpv.cpp
View file

@ -771,33 +771,41 @@ spv::StorageClass TGlslangToSpvTraverser::TranslateStorageClass(const glslang::T
{
if (type.getQualifier().isPipeInput())
return spv::StorageClassInput;
else if (type.getQualifier().isPipeOutput())
if (type.getQualifier().isPipeOutput())
return spv::StorageClassOutput;
else if (type.getBasicType() == glslang::EbtAtomicUint)
return spv::StorageClassAtomicCounter;
else if (type.containsOpaque())
return spv::StorageClassUniformConstant;
else if (glslangIntermediate->usingStorageBuffer() && type.getQualifier().storage == glslang::EvqBuffer) {
if (glslangIntermediate->getSource() != glslang::EShSourceHlsl ||
type.getQualifier().storage == glslang::EvqUniform) {
if (type.getBasicType() == glslang::EbtAtomicUint)
return spv::StorageClassAtomicCounter;
if (type.containsOpaque())
return spv::StorageClassUniformConstant;
}
if (glslangIntermediate->usingStorageBuffer() && type.getQualifier().storage == glslang::EvqBuffer) {
builder.addExtension(spv::E_SPV_KHR_storage_buffer_storage_class);
return spv::StorageClassStorageBuffer;
} else if (type.getQualifier().isUniformOrBuffer()) {
}
if (type.getQualifier().isUniformOrBuffer()) {
if (type.getQualifier().layoutPushConstant)
return spv::StorageClassPushConstant;
if (type.getBasicType() == glslang::EbtBlock)
return spv::StorageClassUniform;
else
return spv::StorageClassUniformConstant;
} else {
switch (type.getQualifier().storage) {
case glslang::EvqShared: return spv::StorageClassWorkgroup; break;
case glslang::EvqGlobal: return spv::StorageClassPrivate;
case glslang::EvqConstReadOnly: return spv::StorageClassFunction;
case glslang::EvqTemporary: return spv::StorageClassFunction;
default:
assert(0);
return spv::StorageClassFunction;
}
return spv::StorageClassUniformConstant;
}
switch (type.getQualifier().storage) {
case glslang::EvqShared: return spv::StorageClassWorkgroup;
case glslang::EvqGlobal: return spv::StorageClassPrivate;
case glslang::EvqConstReadOnly: return spv::StorageClassFunction;
case glslang::EvqTemporary: return spv::StorageClassFunction;
default:
assert(0);
break;
}
return spv::StorageClassFunction;
}
// Return whether or not the given type is something that should be tied to a
@ -2997,15 +3005,21 @@ void TGlslangToSpvTraverser::makeFunctions(const glslang::TIntermSequence& glslF
bool implicitThis = (int)parameters.size() > 0 && parameters[0]->getAsSymbolNode()->getName() ==
glslangIntermediate->implicitThisName;
const auto canPassOriginal = [&](const glslang::TType& paramType, bool firstParam) -> bool {
if (glslangIntermediate->getSource() == glslang::EShSourceHlsl)
return firstParam && implicitThis;
else
return paramType.containsOpaque() || // sampler, etc.
(paramType.getBasicType() == glslang::EbtBlock &&
paramType.getQualifier().storage == glslang::EvqBuffer) || // SSBO
(firstParam && implicitThis); // implicit 'this'
};
paramDecorations.resize(parameters.size());
for (int p = 0; p < (int)parameters.size(); ++p) {
const glslang::TType& paramType = parameters[p]->getAsTyped()->getType();
spv::Id typeId = convertGlslangToSpvType(paramType);
// can we pass by reference?
if (paramType.containsOpaque() || // sampler, etc.
(paramType.getBasicType() == glslang::EbtBlock &&
paramType.getQualifier().storage == glslang::EvqBuffer) || // SSBO
(p == 0 && implicitThis)) // implicit 'this'
if (canPassOriginal(paramType, p == 0))
typeId = builder.makePointer(TranslateStorageClass(paramType), typeId);
else if (paramType.getQualifier().storage != glslang::EvqConstReadOnly)
typeId = builder.makePointer(spv::StorageClassFunction, typeId);
@ -3567,8 +3581,10 @@ spv::Id TGlslangToSpvTraverser::handleUserFunctionCall(const glslang::TIntermAgg
const glslang::TIntermSequence& glslangArgs = node->getSequence();
const glslang::TQualifierList& qualifiers = node->getQualifierList();
// Encapsulate lvalue logic, used in several places below, for safety.
const auto isLValue = [](int qualifier, const glslang::TType& paramType) -> bool {
// Encapsulate lvalue logic, used in multiple places below, for safety.
const auto isLValue = [&](int qualifier, const glslang::TType& paramType) -> bool {
if (glslangIntermediate->getSource() == glslang::EShSourceHlsl)
return qualifier != glslang::EvqConstReadOnly;
return qualifier != glslang::EvqConstReadOnly || paramType.containsOpaque();
};
@ -3610,9 +3626,10 @@ spv::Id TGlslangToSpvTraverser::handleUserFunctionCall(const glslang::TIntermAgg
for (int a = 0; a < (int)glslangArgs.size(); ++a) {
const glslang::TType& paramType = glslangArgs[a]->getAsTyped()->getType();
spv::Id arg;
if (paramType.containsOpaque() ||
(paramType.getBasicType() == glslang::EbtBlock && qualifiers[a] == glslang::EvqBuffer) ||
(a == 0 && function->hasImplicitThis())) {
if ((a == 0 && function->hasImplicitThis()) ||
(glslangIntermediate->getSource() != glslang::EShSourceHlsl &&
(paramType.containsOpaque() ||
(paramType.getBasicType() == glslang::EbtBlock && qualifiers[a] == glslang::EvqBuffer)))) {
builder.setAccessChain(lValues[lValueCount]);
arg = builder.accessChainGetLValue();
++lValueCount;