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      1 /*
      2  * Copyright (C) 2010 Google 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  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef Extensions3DOpenGL_h
     27 #define Extensions3DOpenGL_h
     28 
     29 #include "Extensions3D.h"
     30 
     31 #include "GraphicsContext3D.h"
     32 #include <wtf/HashSet.h>
     33 #include <wtf/text/StringHash.h>
     34 
     35 namespace WebCore {
     36 
     37 class Extensions3DOpenGL : public Extensions3D {
     38 public:
     39     virtual ~Extensions3DOpenGL();
     40 
     41     // Extensions3D methods.
     42     virtual bool supports(const String&);
     43     virtual void ensureEnabled(const String&);
     44     virtual bool isEnabled(const String&);
     45     virtual int getGraphicsResetStatusARB();
     46     virtual void blitFramebuffer(long srcX0, long srcY0, long srcX1, long srcY1, long dstX0, long dstY0, long dstX1, long dstY1, unsigned long mask, unsigned long filter);
     47     virtual void renderbufferStorageMultisample(unsigned long target, unsigned long samples, unsigned long internalformat, unsigned long width, unsigned long height);
     48 
     49     virtual Platform3DObject createVertexArrayOES();
     50     virtual void deleteVertexArrayOES(Platform3DObject);
     51     virtual GC3Dboolean isVertexArrayOES(Platform3DObject);
     52     virtual void bindVertexArrayOES(Platform3DObject);
     53 
     54 private:
     55     // This class only needs to be instantiated by GraphicsContext3D implementations.
     56     friend class GraphicsContext3D;
     57     Extensions3DOpenGL(GraphicsContext3D*);
     58 
     59     bool m_initializedAvailableExtensions;
     60     HashSet<String> m_availableExtensions;
     61 
     62     // Weak pointer back to GraphicsContext3D
     63     GraphicsContext3D* m_context;
     64 };
     65 
     66 } // namespace WebCore
     67 
     68 #endif // Extensions3DOpenGL_h
     69