/*
 Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)

 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Library General Public
 License as published by the Free Software Foundation; either
 version 2 of the License, or (at your option) any later version.

 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 Library General Public License for more details.

 You should have received a copy of the GNU Library General Public License
 along with this library; see the file COPYING.LIB.  If not, write to
 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 Boston, MA 02110-1301, USA.
 */

#ifndef TextureMapperImageBuffer_h
#define TextureMapperImageBuffer_h

#include "BitmapTextureImageBuffer.h"
#include "ImageBuffer.h"
#include "TextureMapper.h"

#if USE(TEXTURE_MAPPER)
namespace WebCore {

class TextureMapperImageBuffer final : public TextureMapper {
    WTF_MAKE_FAST_ALLOCATED;
public:
    TextureMapperImageBuffer();

    // TextureMapper implementation
    void drawBorder(const Color&, float borderWidth, const FloatRect&, const TransformationMatrix&) final;
    void drawNumber(int number, const Color&, const FloatPoint&, const TransformationMatrix&) final;
    void drawTexture(const BitmapTexture&, const FloatRect& targetRect, const TransformationMatrix&, float opacity, unsigned exposedEdges) final;
    void drawSolidColor(const FloatRect&, const TransformationMatrix&, const Color&) final;
    void beginClip(const TransformationMatrix&, const FloatRect&) final;
    void bindSurface(BitmapTexture* surface) final { m_currentSurface = surface;}
    void endClip() final { graphicsContext()->restore(); }
    IntRect clipBounds() final { return currentContext()->clipBounds(); }
    IntSize maxTextureSize() const final;
    PassRefPtr<BitmapTexture> createTexture() final { return BitmapTextureImageBuffer::create(); }

    inline GraphicsContext* currentContext()
    {
        return m_currentSurface ? static_cast<BitmapTextureImageBuffer*>(m_currentSurface.get())->graphicsContext() : graphicsContext();
    }

private:
    RefPtr<BitmapTexture> m_currentSurface;
};

}
#endif // USE(TEXTURE_MAPPER)

#endif // TextureMapperImageBuffer_h