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/*
* Copyright (C) 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 "FloatRect.h"
#include "ImageTypes.h"
#include <wtf/TZoneMalloc.h>
namespace WebCore {
class GraphicsContext;
class ImageBuffer;
struct ImagePaintingOptions;
class CachedSubimage {
WTF_MAKE_TZONE_ALLOCATED(CachedSubimage);
public:
static std::unique_ptr<CachedSubimage> create(GraphicsContext&, const FloatSize& imageSize, const FloatRect& destinationRect, const FloatRect& sourceRect);
static std::unique_ptr<CachedSubimage> createPixelated(GraphicsContext&, const FloatRect& destinationRect, const FloatRect& sourceRect);
CachedSubimage(Ref<ImageBuffer>&&, const FloatSize& scaleFactor, const FloatRect& destinationRect, const FloatRect& sourceRect);
ImageBuffer& imageBuffer() const { return m_imageBuffer; }
FloatSize scaleFactor() const { return m_scaleFactor; }
FloatRect destinationRect() const { return m_destinationRect; }
FloatRect sourceRect() const { return m_sourceRect; }
bool canBeUsed(GraphicsContext&, const FloatRect& destinationRect, const FloatRect& sourceRect) const;
void draw(GraphicsContext&, const FloatRect& destinationRect, const FloatRect& sourceRect);
// The tile size is usually 512 x 512, account for the 2x display resolution
// and make room for one more tile in every direction.
static constexpr float maxSide = 512 * 2 * 3;
static constexpr float maxArea = maxSide * maxSide;
private:
Ref<ImageBuffer> m_imageBuffer;
FloatSize m_scaleFactor;
FloatRect m_destinationRect;
FloatRect m_sourceRect;
};
} // namespace WebCore
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