kc3-lang/angle/src/compiler/MapLongVariableNames.h

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• Hash : 46974d29
  Author :
  Date : 2011-09-27T21:26:19
  

  Fix memory corruption in ANGLE shader translator.
  
  The bug is that within each compilation cycle, all the memory allocated through T* types are freed to be reused.  So if certain information is meant to outlive the cycle, it should use the std type instead of the T* type:
  
  1) emulated function vector
  2) mapped long names map
  
  BUG=none
  TEST=webgl conformance test conformance/glsl/glsl-feature-mod-gentype.html does not crash in Win Debug.
  Review URL: http://codereview.appspot.com/5137047
  
  git-svn-id: https://angleproject.googlecode.com/svn/trunk@773 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• src/compiler/MapLongVariableNames.h

• //
  // 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_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_IDENTIFIER_NAME_SIZE 32
  
  // Traverses intermediate tree to map attributes and uniforms names that are
  // longer than MAX_IDENTIFIER_NAME_SIZE to MAX_IDENTIFIER_NAME_SIZE.
  class MapLongVariableNames : public TIntermTraverser {
  public:
      MapLongVariableNames(std::map<std::string, std::string>& varyingLongNameMap);
  
      virtual void visitSymbol(TIntermSymbol*);
      virtual bool visitLoop(Visit, TIntermLoop*);
  
  private:
      TString mapVaryingLongName(const TString& name);
  
      std::map<std::string, std::string>& mVaryingLongNameMap;
  };
  
  #endif  // COMPILER_MAP_LONG_VARIABLE_NAMES_H_
  

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