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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/intermediate.h"
// Provides information about a variable.
// It is currently being used to store info about active attribs and uniforms.
struct TVariableInfo {
TVariableInfo(ShDataType type, int size);
TVariableInfo();
TPersistString name;
TPersistString mappedName;
ShDataType type;
int size;
bool isArray;
TPrecision precision;
bool staticUse;
};
typedef std::vector<TVariableInfo> TVariableInfoList;
// Traverses intermediate tree to collect all attributes, uniforms, varyings.
class CollectVariables : public TIntermTraverser {
public:
CollectVariables(TVariableInfoList& attribs,
TVariableInfoList& uniforms,
TVariableInfoList& varyings,
ShHashFunction64 hashFunction);
virtual void visitSymbol(TIntermSymbol*);
virtual bool visitAggregate(Visit, TIntermAggregate*);
private:
TVariableInfoList& mAttribs;
TVariableInfoList& mUniforms;
TVariableInfoList& mVaryings;
bool mPointCoordAdded;
bool mFrontFacingAdded;
bool mFragCoordAdded;
ShHashFunction64 mHashFunction;
};
#endif // COMPILER_VARIABLE_INFO_H_
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