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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 "compiler/translator/intermediate.h"
#include "common/shadervars.h"
// Traverses intermediate tree to collect all attributes, uniforms, varyings.
class CollectVariables : public TIntermTraverser
{
public:
CollectVariables(std::vector<sh::Attribute> *attribs,
std::vector<sh::Attribute> *outputVariables,
std::vector<sh::Uniform> *uniforms,
std::vector<sh::Varying> *varyings,
std::vector<sh::InterfaceBlock> *interfaceBlocks,
ShHashFunction64 hashFunction);
virtual void visitSymbol(TIntermSymbol *symbol);
virtual bool visitAggregate(Visit, TIntermAggregate *node);
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<sh::Attribute> *mAttribs;
std::vector<sh::Attribute> *mOutputVariables;
std::vector<sh::Uniform> *mUniforms;
std::vector<sh::Varying> *mVaryings;
std::vector<sh::InterfaceBlock> *mInterfaceBlocks;
std::map<std::string, sh::InterfaceBlockField *> mInterfaceBlockFields;
bool mPointCoordAdded;
bool mFrontFacingAdded;
bool mFragCoordAdded;
ShHashFunction64 mHashFunction;
};
// Expand struct variables to flattened lists of split variables
// Implemented for sh::Varying and sh::Uniform.
template <typename VarT>
void ExpandVariables(const std::vector<VarT> &compact, std::vector<VarT> *expanded);
#endif // COMPILER_VARIABLE_INFO_H_
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