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

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• Hash : 9ecb9f9d
  Author :
  Date : 2010-07-28T19:21:12
  

  Sharing for buffer, texture and renderbuffer objects.
  
  TRAC #12496
  
  Derive Renderbuffer, Texture and Buffer from RefCountObject.
  This class keeps a reference count for all objects that need cross-context
  reference counting, and also the object id.
  Restructure Renderbuffers to create a wrapper object and a storage object.
  Use BindingPointer for all binding points instead of binding by object id.
  
  Signed-off-by: Shannon Woods
  Signed-off-by: Daniel Koch
  
  git-svn-id: https://angleproject.googlecode.com/svn/trunk@364 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• src/libGLESv2/RefCountObject.cpp

• //
  // Copyright (c) 2002-2010 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.
  //
  
  // RefCountObject.cpp: Defines the gl::RefCountObject base class that provides
  // lifecycle support for GL objects using the traditional BindObject scheme, but
  // that need to be reference counted for correct cross-context deletion.
  // (Concretely, textures, buffers and renderbuffers.)
  
  #include "RefCountObject.h"
  
  namespace gl
  {
  
  RefCountObject::RefCountObject(GLuint id)
  {
      mId = id;
      mRefCount = 0;
  }
  
  RefCountObject::~RefCountObject()
  {
  }
  
  void RefCountObject::addRef() const
  {
      mRefCount++;
  }
  
  void RefCountObject::release() const
  {
      ASSERT(mRefCount > 0);
  
      if (--mRefCount == 0)
      {
          delete this;
      }
  }
  
  void RefCountObjectBindingPointer::set(RefCountObject *newObject)
  {
      // addRef first in case newObject == mObject and this is the last reference to it.
      if (newObject != NULL) newObject->addRef();
      if (mObject != NULL) mObject->release();
  
      mObject = newObject;
  }
  
  }
  

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