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/*
* Copyright (C) 2022 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 "ImageBuffer.h"
#include "NativeImage.h"
#include "RenderingResourceIdentifier.h"
namespace WebCore {
class WEBCORE_EXPORT SourceImage {
public:
using ImageVariant = std::variant<
Ref<NativeImage>,
Ref<ImageBuffer>,
RenderingResourceIdentifier
>;
SourceImage(ImageVariant&&);
NativeImage* nativeImageIfExists() const;
NativeImage* nativeImage() const;
ImageBuffer* imageBufferIfExists() const;
ImageBuffer* imageBuffer() const;
RenderingResourceIdentifier imageIdentifier() const;
IntSize size() const;
template<class Encoder> void encode(Encoder&) const;
template<class Decoder> static std::optional<SourceImage> decode(Decoder&);
private:
ImageVariant m_imageVariant;
mutable std::optional<ImageVariant> m_transformedImageVariant;
};
template<class Encoder>
void SourceImage::encode(Encoder& encoder) const
{
encoder << imageIdentifier();
}
template<class Decoder>
std::optional<SourceImage> SourceImage::decode(Decoder& decoder)
{
std::optional<RenderingResourceIdentifier> imageIdentifier;
decoder >> imageIdentifier;
if (!imageIdentifier)
return std::nullopt;
return SourceImage(*imageIdentifier);
}
} // namespace WebCore
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