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//
// Copyright (c) 2002-2011 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#ifndef COMPILER_VARIABLE_INFO_H_
#define COMPILER_VARIABLE_INFO_H_
#include <GLSLANG/ShaderLang.h>
#include "compiler/translator/IntermNode.h"
namespace sh
{
// Traverses intermediate tree to collect all attributes, uniforms, varyings.
class CollectVariables : public TIntermTraverser
{
public:
CollectVariables(std::vector<Attribute> *attribs,
std::vector<Attribute> *outputVariables,
std::vector<Uniform> *uniforms,
std::vector<Varying> *varyings,
std::vector<InterfaceBlock> *interfaceBlocks,
ShHashFunction64 hashFunction);
virtual void visitSymbol(TIntermSymbol *symbol);
virtual bool visitAggregate(Visit, TIntermAggregate *node);
virtual bool visitBinary(Visit visit, TIntermBinary *binaryNode);
private:
template <typename VarT>
void visitVariable(const TIntermSymbol *variable, std::vector<VarT> *infoList) const;
template <typename VarT>
void visitInfoList(const TIntermSequence &sequence, std::vector<VarT> *infoList) const;
std::vector<Attribute> *mAttribs;
std::vector<Attribute> *mOutputVariables;
std::vector<Uniform> *mUniforms;
std::vector<Varying> *mVaryings;
std::vector<InterfaceBlock> *mInterfaceBlocks;
std::map<std::string, InterfaceBlockField *> mInterfaceBlockFields;
bool mPointCoordAdded;
bool mFrontFacingAdded;
bool mFragCoordAdded;
ShHashFunction64 mHashFunction;
};
// Expand struct variables to flattened lists of split variables
template <typename VarT>
void ExpandVariables(const std::vector<VarT> &compact,
std::vector<ShaderVariable> *expanded);
}
#endif // COMPILER_VARIABLE_INFO_H_
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