/*
 * Copyright (C) 2022-2023 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:
 * 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. ``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
 * 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.
 */

#pragma once

#include "GraphicsContextSwitcher.h"
#include <wtf/TZoneMalloc.h>

namespace WebCore {

class ImageBuffer;

class ImageBufferContextSwitcher final : public GraphicsContextSwitcher {
    WTF_MAKE_TZONE_ALLOCATED(ImageBufferContextSwitcher);
public:
    ImageBufferContextSwitcher(GraphicsContext& destinationContext, const FloatRect& sourceImageRect, const DestinationColorSpace&, RefPtr<Filter>&& = nullptr, FilterResults* = nullptr);

private:
    GraphicsContext* drawingContext(GraphicsContext& destinationContext) const override;

    bool hasSourceImage() const override { return m_sourceImage; }

    void beginClipAndDrawSourceImage(GraphicsContext& destinationContext, const FloatRect& repaintRect, const FloatRect& clipRect) override;
    void endClipAndDrawSourceImage(GraphicsContext& destinationContext, const DestinationColorSpace&) override;

    void beginDrawSourceImage(GraphicsContext&, float = 1.f) override { }
    void endDrawSourceImage(GraphicsContext& destinationContext, const DestinationColorSpace&) override;

    RefPtr<ImageBuffer> m_sourceImage;
    FloatRect m_sourceImageRect;

    FilterResults* m_results { nullptr };
};

} // namespace WebCore
