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 //

 // Copyright (c) 2002-2012 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_MAP_LONG_VARIABLE_NAMES_H_

 #define COMPILER_MAP_LONG_VARIABLE_NAMES_H_

 #include "GLSLANG/ShaderLang.h"

 #include "compiler/intermediate.h"

 #include "compiler/VariableInfo.h"

 // This size does not include '\0' in the end.

 #define MAX_SHORTENED_IDENTIFIER_SIZE 32

 // This is a ref-counted singleton. GetInstance() returns a pointer to the

 // singleton, and after use, call Release(). GetInstance() and Release() should

 // be paired.

 class LongNameMap {

 public:

     static LongNameMap* GetInstance();

     void Release();

     // Return the mapped name if <originalName, mappedName> is in the map;

     // otherwise, return NULL.

     const char* Find(const char* originalName) const;

     // Insert a pair into the map.

     void Insert(const char* originalName, const char* mappedName);

     // Return the number of entries in the map.

     size_t Size() const;

 private:

     LongNameMap();

     ~LongNameMap();

     size_t refCount;

     std::map<std::string, std::string> mLongNameMap;

 };

 // Traverses intermediate tree to map attributes and uniforms names that are

 // longer than MAX_SHORTENED_IDENTIFIER_SIZE to MAX_SHORTENED_IDENTIFIER_SIZE.

 class MapLongVariableNames : public TIntermTraverser {

 public:

     MapLongVariableNames(LongNameMap* globalMap);

     virtual void visitSymbol(TIntermSymbol*);

     virtual bool visitLoop(Visit, TIntermLoop*);

 private:

     TString mapGlobalLongName(const TString& name);

     LongNameMap* mGlobalMap;

 };

 #endif  // COMPILER_MAP_LONG_VARIABLE_NAMES_H_