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

Branch : - branch - main - tag -

• Show log

  Commit

• Author : shannon.woods@transgaming.com
  Date : 2013-02-28 23:16:20
  Hash : bdf2d80f
  Message : Add precompiled header support for the libGLESv2 project. TRAC #22518 Signed-off-by: Geoff Lang Signed-off-by: Shannon Woods Author: Jamie Madill git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1938 736b8ea6-26fd-11df-bfd4-992fa37f6226

• src/libGLESv2/HandleAllocator.cpp

• #include "precompiled.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.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);
          }
      }
  }
  
  }