kc3-lang/angle/src/libGLESv2/HandleAllocator.cpp

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• Author : Geoff Lang
  Date : 2014-06-12 14:10:47
  Hash : 0b7eef7c
  Message : Removed common_includes.h reordered includes. Since we are not using precompiled headers anymore, remove common_includes.h so that fewer files are included in cpp files. Reordered includes to be in the following order: 1) Local ANGLE project headers, ordered by directory in descending depth 2) GL headers 3) STL headers This helps enforce the include-what-you-use principal by reducing the number of STL headers unexpectedly shared between files. This include order conflicts with some of the Google c++ style guide which states that STL includes should be first but this helps us catch more issues. Change-Id: I8f7785f4ad574e253dd3c7b4fb1e54d3ce3b99fc Reviewed-on: https://chromium-review.googlesource.com/214850 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• src/libGLESv2/HandleAllocator.cpp

• //
  // 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.cpp: Implements the gl::HandleAllocator class, which is used
  // to allocate GL handles.
  
  #include "libGLESv2/HandleAllocator.h"
  
  #include "libGLESv2/main.h"
  
  namespace gl
  {
  
  HandleAllocator::HandleAllocator() : mBaseValue(1), mNextValue(1)
  {
  }
  
  HandleAllocator::~HandleAllocator()
  {
  }
  
  void HandleAllocator::setBaseHandle(GLuint value)
  {
      ASSERT(mBaseValue == mNextValue);
      mBaseValue = value;
      mNextValue = value;
  }
  
  GLuint HandleAllocator::allocate()
  {
      if (mFreeValues.size())
      {
          GLuint handle = mFreeValues.back();
          mFreeValues.pop_back();
          return handle;
      }
      return mNextValue++;
  }
  
  void HandleAllocator::release(GLuint handle)
  {
      if (handle == mNextValue - 1)
      {
          // Don't drop below base value
          if(mNextValue > mBaseValue)
          {
              mNextValue--;
          }
      }
      else
      {
          // Only free handles that we own - don't drop below the base value
          if (handle >= mBaseValue)
          {
              mFreeValues.push_back(handle);
          }
      }
  }
  
  }