ThreadSafeCoordinatedSurface.h   [plain text]

/*
 * Copyright (C) 2014 Igalia S.L.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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 */

#ifndef ThreadSafeCoordinatedSurface_h
#define ThreadSafeCoordinatedSurface_h

#if USE(COORDINATED_GRAPHICS)
#include <WebCore/CoordinatedSurface.h>
#include <WebCore/ImageBuffer.h>

namespace WebKit {

class ThreadSafeCoordinatedSurface : public WebCore::CoordinatedSurface {
public:
    virtual ~ThreadSafeCoordinatedSurface();

    // Create a new ThreadSafeCoordinatedSurface and allocate either a GraphicsSurface or a ImageBuffer as backing.
    static Ref<ThreadSafeCoordinatedSurface> create(const WebCore::IntSize&, WebCore::CoordinatedSurface::Flags);

    void paintToSurface(const WebCore::IntRect&, WebCore::CoordinatedSurface::Client&) override;
    void copyToTexture(WebCore::BitmapTexture&, const WebCore::IntRect& target, const WebCore::IntPoint& sourceOffset) override;

private:
    ThreadSafeCoordinatedSurface(const WebCore::IntSize&, WebCore::CoordinatedSurface::Flags, std::unique_ptr<WebCore::ImageBuffer>);

    WebCore::GraphicsContext& beginPaint(const WebCore::IntRect&);
    void endPaint();

    std::unique_ptr<WebCore::ImageBuffer> m_imageBuffer;
};

} // namespace WebKit

#endif // USE(COORDINATED_GRAPHICS)

#endif // ThreadSafeCoordinatedSurface_h