michael@0: //
michael@0: // Copyright (c) 2002-2011 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: #ifndef COMPILER_VARIABLE_INFO_H_
michael@0: #define COMPILER_VARIABLE_INFO_H_
michael@0: 
michael@0: #include "GLSLANG/ShaderLang.h"
michael@0: #include "compiler/intermediate.h"
michael@0: 
michael@0: // Provides information about a variable.
michael@0: // It is currently being used to store info about active attribs and uniforms.
michael@0: struct TVariableInfo {
michael@0:     TVariableInfo(ShDataType type, int size);
michael@0:     TVariableInfo();
michael@0: 
michael@0:     TPersistString name;
michael@0:     TPersistString mappedName;
michael@0:     ShDataType type;
michael@0:     int size;
michael@0: };
michael@0: typedef std::vector<TVariableInfo> TVariableInfoList;
michael@0: 
michael@0: // Traverses intermediate tree to collect all attributes and uniforms.
michael@0: class CollectAttribsUniforms : public TIntermTraverser {
michael@0: public:
michael@0:     CollectAttribsUniforms(TVariableInfoList& attribs,
michael@0:                            TVariableInfoList& uniforms,
michael@0:                            ShHashFunction64 hashFunction);
michael@0: 
michael@0:     virtual void visitSymbol(TIntermSymbol*);
michael@0:     virtual void visitConstantUnion(TIntermConstantUnion*);
michael@0:     virtual bool visitBinary(Visit, TIntermBinary*);
michael@0:     virtual bool visitUnary(Visit, TIntermUnary*);
michael@0:     virtual bool visitSelection(Visit, TIntermSelection*);
michael@0:     virtual bool visitAggregate(Visit, TIntermAggregate*);
michael@0:     virtual bool visitLoop(Visit, TIntermLoop*);
michael@0:     virtual bool visitBranch(Visit, TIntermBranch*);
michael@0: 
michael@0: private:
michael@0:     TVariableInfoList& mAttribs;
michael@0:     TVariableInfoList& mUniforms;
michael@0: 
michael@0:     ShHashFunction64 mHashFunction;
michael@0: };
michael@0: 
michael@0: #endif  // COMPILER_VARIABLE_INFO_H_