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Merge pull request #1438 from Think-Silicon/getUniformStages

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Reflection exposes the Shader Stages where a Uniform is present
This commit is contained in:
John Kessenich 2018-07-11 08:19:21 -07:00 • committed by GitHub
commit 8dafeab47e
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 241 additions and 228 deletions
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1
glslang/MachineIndependent/ShaderLang.cpp
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@ -1910,6 +1910,7 @@ const char* TProgram::getUniformBlockName(int index) const { return reflection
int TProgram::getUniformBlockSize(int index) const { return reflection->getUniformBlock(index).size; }
int TProgram::getUniformIndex(const char* name) const { return reflection->getIndex(name); }
int TProgram::getUniformBinding(int index) const { return reflection->getUniform(index).getBinding(); }
EShLanguageMask TProgram::getUniformStages(int index) const { return reflection->getUniform(index).stages; }
int TProgram::getUniformBlockBinding(int index) const { return reflection->getUniformBlock(index).getBinding(); }
int TProgram::getUniformBlockIndex(int index) const { return reflection->getUniform(index).index; }
int TProgram::getUniformBlockCounterIndex(int index) const { return reflection->getUniformBlock(index).counterIndex; }

9
glslang/MachineIndependent/reflection.cpp
View file

@ -778,6 +778,14 @@ void TReflection::buildCounterIndices(const TIntermediate& intermediate)
}
}
// build Shader Stages mask for all uniforms
void TReflection::buildUniformStageMask(const TIntermediate& intermediate)
{
for (int i = 0; i < int(indexToUniform.size()); ++i) {
indexToUniform[i].stages = static_cast<EShLanguageMask>(indexToUniform[i].stages | 1 << intermediate.getStage());
}
}
// Merge live symbols from 'intermediate' into the existing reflection database.
//
// Returns false if the input is too malformed to do this.
@ -803,6 +811,7 @@ bool TReflection::addStage(EShLanguage stage, const TIntermediate& intermediate)
}
buildCounterIndices(intermediate);
buildUniformStageMask(intermediate);
return true;
}

8
glslang/MachineIndependent/reflection.h
View file

@ -57,7 +57,7 @@ class TObjectReflection {
public:
TObjectReflection(const TString& pName, const TType& pType, int pOffset, int pGLDefineType, int pSize, int pIndex) :
name(pName), offset(pOffset),
glDefineType(pGLDefineType), size(pSize), index(pIndex), counterIndex(-1), type(pType.clone()) { }
glDefineType(pGLDefineType), size(pSize), index(pIndex), counterIndex(-1), type(pType.clone()), stages(EShLanguageMask(0)) { }
const TType* const getType() const { return type; }
int getBinding() const
@ -68,8 +68,8 @@ public:
}
void dump() const
{
printf("%s: offset %d, type %x, size %d, index %d, binding %d",
name.c_str(), offset, glDefineType, size, index, getBinding() );
printf("%s: offset %d, type %x, size %d, index %d, binding %d, stages %d",
name.c_str(), offset, glDefineType, size, index, getBinding(), stages );
if (counterIndex != -1)
printf(", counter %d", counterIndex);
@ -84,6 +84,7 @@ public:
int size; // data size in bytes for a block, array size for a (non-block) object that's an array
int index;
int counterIndex;
EShLanguageMask stages;
protected:
TObjectReflection() : offset(-1), glDefineType(-1), size(-1), index(-1), type(nullptr) { }
@ -157,6 +158,7 @@ protected:
friend class glslang::TReflectionTraverser;
void buildCounterIndices(const TIntermediate&);
void buildUniformStageMask(const TIntermediate& intermediate);
void buildAttributeReflection(EShLanguage, const TIntermediate&);
// Need a TString hash: typedef std::unordered_map<TString, int> TNameToIndex;

1
glslang/Public/ShaderLang.h
View file

@ -671,6 +671,7 @@ public:
int getUniformBlockSize(int blockIndex) const; // can be used for glGetActiveUniformBlockiv(UNIFORM_BLOCK_DATA_SIZE)
int getUniformIndex(const char* name) const; // can be used for glGetUniformIndices()
int getUniformBinding(int index) const; // returns the binding number
EShLanguageMask getUniformStages(int index) const; // returns Shaders Stages where a Uniform is present
int getUniformBlockBinding(int index) const; // returns the block binding number
int getUniformBlockIndex(int index) const; // can be used for glGetActiveUniformsiv(GL_UNIFORM_BLOCK_INDEX)
int getUniformBlockCounterIndex(int index) const; // returns block index of associated counter.