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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 #ifndef WebGLRenderbuffer_h
     27 #define WebGLRenderbuffer_h
     28 
     29 #include "WebGLObject.h"
     30 
     31 #include <wtf/PassRefPtr.h>
     32 #include <wtf/RefCounted.h>
     33 
     34 namespace WebCore {
     35 
     36 class WebGLRenderbuffer : public WebGLObject {
     37 public:
     38     virtual ~WebGLRenderbuffer() { deleteObject(); }
     39 
     40     static PassRefPtr<WebGLRenderbuffer> create(WebGLRenderingContext*);
     41 
     42     void setInternalFormat(GC3Denum internalformat)
     43     {
     44         m_internalFormat = internalformat;
     45         m_initialized = false;
     46     }
     47     GC3Denum getInternalFormat() const { return m_internalFormat; }
     48 
     49     void setSize(GC3Dsizei width, GC3Dsizei height)
     50     {
     51         m_width = width;
     52         m_height = height;
     53     }
     54     GC3Dsizei getWidth() const { return m_width; }
     55     GC3Dsizei getHeight() const { return m_height; }
     56 
     57     void setIsValid(bool isValid) { m_isValid = isValid; }
     58     bool isValid() const { return m_isValid; }
     59 
     60     bool isInitialized() const { return m_initialized; }
     61     void setInitialized() { m_initialized = true; }
     62 
     63     bool hasEverBeenBound() const { return object() && m_hasEverBeenBound; }
     64 
     65     void setHasEverBeenBound() { m_hasEverBeenBound = true; }
     66 
     67 protected:
     68     WebGLRenderbuffer(WebGLRenderingContext*);
     69 
     70     virtual void deleteObjectImpl(Platform3DObject);
     71 
     72 private:
     73     virtual bool isRenderbuffer() const { return true; }
     74 
     75     GC3Denum m_internalFormat;
     76     bool m_initialized;
     77     GC3Dsizei m_width, m_height;
     78     bool m_isValid; // This is only false if internalFormat is DEPTH_STENCIL and packed_depth_stencil is not supported.
     79 
     80     bool m_hasEverBeenBound;
     81 };
     82 
     83 } // namespace WebCore
     84 
     85 #endif // WebGLRenderbuffer_h
     86