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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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef Texture_h
     32 #define Texture_h
     33 
     34 #include "TilingData.h"
     35 #include <wtf/OwnPtr.h>
     36 #include <wtf/PassOwnPtr.h>
     37 #include <wtf/RefCounted.h>
     38 #include <wtf/RefPtr.h>
     39 #include <wtf/Vector.h>
     40 
     41 namespace WebCore {
     42 class GraphicsContext3D;
     43 
     44 class IntRect;
     45 
     46 class Texture : public RefCounted<Texture> {
     47 public:
     48     ~Texture();
     49     enum Format { RGBA8, BGRA8 };
     50     static PassRefPtr<Texture> create(GraphicsContext3D*, Format, int width, int height);
     51     void bindTile(int tile);
     52     void load(void* pixels);
     53     void updateSubRect(void* pixels, const IntRect&);
     54     Format format() const { return m_format; }
     55     const TilingData& tiles() const { return m_tiles; }
     56 private:
     57     Texture(GraphicsContext3D*, PassOwnPtr<Vector<unsigned int> > tileTextureIds, Format format, int width, int height, int maxTextureSize);
     58     GraphicsContext3D* m_context;
     59     Format m_format;
     60     TilingData m_tiles;
     61     OwnPtr<Vector<unsigned int> > m_tileTextureIds;
     62 };
     63 
     64 }
     65 
     66 #endif // Texture_h
     67