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

• Show log

  Commit

• Hash : 4167cc91
  Author :
  Date : 2013-01-11T04:11:53
  

  Incorporated BSD-licensed changes implementing array bounds clamping.
  
  BUG=none
  TEST=ran associated WebKit layout tests in Chromium
  Review URL: https://codereview.appspot.com/6999052
  
  git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1701 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

Download

• src/compiler/ArrayBoundsClamper.h

• /*
   * Copyright (C) 2012 Apple Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE, INC. ``AS IS'' AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE, INC. OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
   * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef COMPILER_ARRAY_BOUNDS_CLAMPER_H_
  #define COMPILER_ARRAY_BOUNDS_CLAMPER_H_
  
  #include "GLSLANG/ShaderLang.h"
  
  #include "compiler/InfoSink.h"
  #include "compiler/intermediate.h"
  
  class ArrayBoundsClamper {
  public:
      ArrayBoundsClamper();
  
      // Output array clamp function source into the shader source.
      void OutputClampingFunctionDefinition(TInfoSinkBase& out) const;
  
      // Marks nodes in the tree that index arrays indirectly as
      // requiring clamping.
      void MarkIndirectArrayBoundsForClamping(TIntermNode* root);
  
      void Cleanup()
      {
          mArrayBoundsClampDefinitionNeeded = false;
      }
  
  private:
      bool GetArrayBoundsClampDefinitionNeeded() const { return mArrayBoundsClampDefinitionNeeded; }
      void SetArrayBoundsClampDefinitionNeeded() { mArrayBoundsClampDefinitionNeeded = true; }
      
      bool mArrayBoundsClampDefinitionNeeded;
  };
  
  #endif // COMPILER_ARRAY_BOUNDS_CLAMPER_H_
  

Download