kc3-lang/angle/src/libANGLE/HandleAllocator.h

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• Hash : f0d10f89
  Author :
  Date : 2015-03-31T12:56:52
  

  Replace non-copyable macro with a helper class.
  
  This class provides a simpler scheme for blocking default copy
  and assignment operators. It also reduces the amount of code
  needed since it's inherited to child classes. This also fixes
  the conflict between our macro and the same-named macro in
  Chromium code.
  
  BUG=angleproject:956
  
  Change-Id: If0dc72aa3f63fbc7b8fa34907418821c64c39e2f
  Reviewed-on: https://chromium-review.googlesource.com/263257
  Tested-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Brandon Jones <bajones@chromium.org>
  

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• src/libANGLE/HandleAllocator.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.
  //
  
  // HandleAllocator.h: Defines the gl::HandleAllocator class, which is used to
  // allocate GL handles.
  
  #ifndef LIBANGLE_HANDLEALLOCATOR_H_
  #define LIBANGLE_HANDLEALLOCATOR_H_
  
  #include "common/angleutils.h"
  
  #include "angle_gl.h"
  
  #include <stack>
  
  namespace gl
  {
  
  class HandleAllocator final : angle::NonCopyable
  {
    public:
      // Maximum handle = MAX_UINT-1
      HandleAllocator();
      // Specify maximum handle value
      HandleAllocator(GLuint maximumHandleValue);
  
      ~HandleAllocator();
  
      void setBaseHandle(GLuint value);
  
      GLuint allocate();
      void release(GLuint handle);
      void reserve(GLuint handle);
  
    private:
      GLuint mBaseValue;
      GLuint mNextValue;
      typedef std::vector<GLuint> HandleList;
      HandleList mFreeValues;
  
      struct HandleRange
      {
          HandleRange(GLuint beginIn, GLuint endIn) : begin(beginIn), end(endIn) {}
  
          GLuint begin;
          GLuint end;
      };
  
      struct HandleRangeComparator;
  
      // The freelist consists of never-allocated handles, stored
      // as ranges, and handles that were previously allocated and
      // released, stored in a stack.
      std::vector<HandleRange> mUnallocatedList;
      std::vector<GLuint> mReleasedList;
  };
  
  }
  
  #endif   // LIBANGLE_HANDLEALLOCATOR_H_
  

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