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      1 /*
      2  * Copyright (C) 2009 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 
     28 #include "core/html/canvas/WebGLRenderbuffer.h"
     29 
     30 #include "core/html/canvas/WebGLRenderingContextBase.h"
     31 
     32 namespace WebCore {
     33 
     34 PassRefPtr<WebGLRenderbuffer> WebGLRenderbuffer::create(WebGLRenderingContextBase* ctx)
     35 {
     36     return adoptRef(new WebGLRenderbuffer(ctx));
     37 }
     38 
     39 WebGLRenderbuffer::~WebGLRenderbuffer()
     40 {
     41     deleteObject(0);
     42 }
     43 
     44 WebGLRenderbuffer::WebGLRenderbuffer(WebGLRenderingContextBase* ctx)
     45     : WebGLSharedObject(ctx)
     46     , m_internalFormat(GL_RGBA4)
     47     , m_width(0)
     48     , m_height(0)
     49     , m_hasEverBeenBound(false)
     50 {
     51     ScriptWrappable::init(this);
     52     setObject(ctx->webContext()->createRenderbuffer());
     53 }
     54 
     55 void WebGLRenderbuffer::deleteObjectImpl(blink::WebGraphicsContext3D* context3d, Platform3DObject object)
     56 {
     57     context3d->deleteRenderbuffer(object);
     58     deleteEmulatedStencilBuffer(context3d);
     59 }
     60 
     61 void WebGLRenderbuffer::deleteEmulatedStencilBuffer(blink::WebGraphicsContext3D* context3d)
     62 {
     63     if (!m_emulatedStencilBuffer)
     64         return;
     65     m_emulatedStencilBuffer->deleteObject(context3d);
     66     m_emulatedStencilBuffer.clear();
     67 }
     68 
     69 }
     70