Source/WebCore/platform/graphics/gpu/Texture.h

/*
 * Copyright (c) 2010, Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef Texture_h
#define Texture_h

#include "TilingData.h"
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/Vector.h>

namespace WebCore {
class GraphicsContext3D;

class IntRect;

class Texture : public RefCounted<Texture> {
public:
    ~Texture();
    enum Format { RGBA8, BGRA8 };
    static PassRefPtr<Texture> create(GraphicsContext3D*, Format, int width, int height);
    void bindTile(int tile);
    void load(void* pixels);
    void updateSubRect(void* pixels, const IntRect&);
    Format format() const { return m_format; }
    const TilingData& tiles() const { return m_tiles; }
private:
    Texture(GraphicsContext3D*, std::unique_ptr<Vector<unsigned>> tileTextureIds, Format, int width, int height, int maxTextureSize);
    GraphicsContext3D* m_context;
    Format m_format;
    TilingData m_tiles;
    std::unique_ptr<Vector<unsigned>> m_tileTextureIds;
};

}

#endif // Texture_h