Source/WebCore/platform/graphics/win/ImageBufferDirect2DBackend.h

/*
 * Copyright (C) 2020 Apple 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:
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 * 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. ``AS IS'' AND ANY
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
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#pragma once

#if USE(DIRECT2D)

#include "ImageBufferBackend.h"
#include <wtf/IsoMalloc.h>

namespace WebCore {

class ImageBufferDirect2DBackend : public ImageBufferBackend {
    WTF_MAKE_ISO_ALLOCATED(ImageBufferDirect2DBackend);
    WTF_MAKE_NONCOPYABLE(ImageBufferDirect2DBackend);
public:
    static std::unique_ptr<ImageBufferDirect2DBackend> create(const FloatSize&, float resolutionScale, ColorSpace, const HostWindow*);
    static std::unique_ptr<ImageBufferDirect2DBackend> create(const FloatSize&, const GraphicsContext&);

    GraphicsContext& context() const override;
    void flushContext() override;

    NativeImagePtr copyNativeImage(BackingStoreCopy = CopyBackingStore) const override;
    RefPtr<Image> copyImage(BackingStoreCopy, PreserveResolution) const override;

    RefPtr<Image> sinkIntoImage(PreserveResolution) override;

    String toDataURL(const String& mimeType, Optional<double> quality, PreserveResolution) const override;
    Vector<uint8_t> toData(const String& mimeType, Optional<double> quality) const override;
    Vector<uint8_t> toBGRAData() const override;

    RefPtr<ImageData> getImageData(AlphaPremultiplication outputFormat, const IntRect&) const override;
    void putImageData(AlphaPremultiplication inputFormat, const ImageData&, const IntRect& srcRect, const IntPoint& destPoint) override;

protected:
    ImageBufferDirect2DBackend(const FloatSize& logicalSize, const IntSize& physicalSize, float resolutionScale, ColorSpace);

    std::unique_ptr<PlatformContextDirect2D> m_platformContext;
    std::unique_ptr<GraphicsContext> m_context;
    NativeImagePtr m_bitmap;
};

} // namespace WebCore

#endif // USE(DIRECT2D)