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/*
* Copyright (C) 2004-2025 Apple Inc. All rights reserved.
* Copyright (C) 2007-2008 Torch Mobile, Inc.
* Copyright (C) 2012 Company 100 Inc.
*
* 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 "PlatformImage.h"
#include "RenderingResource.h"
#include <wtf/TZoneMalloc.h>
#include <wtf/UniqueRef.h>
namespace WebCore {
class Color;
class DestinationColorSpace;
class FloatRect;
class GraphicsContext;
class IntSize;
class NativeImageBackend;
struct Headroom;
struct ImagePaintingOptions;
class NativeImage final : public RenderingResource {
WTF_MAKE_TZONE_ALLOCATED(NativeImage);
public:
static WEBCORE_EXPORT RefPtr<NativeImage> create(PlatformImagePtr&&, RenderingResourceIdentifier = RenderingResourceIdentifier::generate());
// Creates a NativeImage that is intended to be drawn once or only few times. Signals the platform to avoid generating any caches for the image.
static WEBCORE_EXPORT RefPtr<NativeImage> createTransient(PlatformImagePtr&&, RenderingResourceIdentifier = RenderingResourceIdentifier::generate());
~NativeImage();
WEBCORE_EXPORT const PlatformImagePtr& platformImage() const;
WEBCORE_EXPORT IntSize size() const;
bool hasAlpha() const;
std::optional<Color> singlePixelSolidColor() const;
WEBCORE_EXPORT DestinationColorSpace colorSpace() const;
WEBCORE_EXPORT bool hasHDRContent() const;
WEBCORE_EXPORT Headroom headroom() const;
void draw(GraphicsContext&, const FloatRect& destRect, const FloatRect& srcRect, ImagePaintingOptions);
void drawWithToneMapping(GraphicsContext&, const FloatRect& destinationRect, const FloatRect& sourceRect, ImagePaintingOptions);
void clearSubimages();
WEBCORE_EXPORT void replaceBackend(UniqueRef<NativeImageBackend>);
NativeImageBackend& backend() { return m_backend.get(); }
const NativeImageBackend& backend() const { return m_backend.get(); }
#if USE(COORDINATED_GRAPHICS)
uint64_t uniqueID() const;
#endif
protected:
NativeImage(UniqueRef<NativeImageBackend>, RenderingResourceIdentifier);
bool isNativeImage() const final { return true; }
UniqueRef<NativeImageBackend> m_backend;
};
class NativeImageBackend {
public:
WEBCORE_EXPORT NativeImageBackend();
WEBCORE_EXPORT virtual ~NativeImageBackend();
virtual const PlatformImagePtr& platformImage() const = 0;
virtual IntSize size() const = 0;
virtual bool hasAlpha() const = 0;
virtual DestinationColorSpace colorSpace() const = 0;
virtual Headroom headroom() const = 0;
WEBCORE_EXPORT virtual bool isRemoteNativeImageBackendProxy() const;
};
class PlatformImageNativeImageBackend final : public NativeImageBackend {
public:
WEBCORE_EXPORT PlatformImageNativeImageBackend(PlatformImagePtr);
WEBCORE_EXPORT ~PlatformImageNativeImageBackend() final;
WEBCORE_EXPORT const PlatformImagePtr& platformImage() const final;
WEBCORE_EXPORT IntSize size() const final;
WEBCORE_EXPORT bool hasAlpha() const final;
WEBCORE_EXPORT DestinationColorSpace colorSpace() const final;
WEBCORE_EXPORT Headroom headroom() const final;
private:
PlatformImagePtr m_platformImage;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::NativeImage)
static bool isType(const WebCore::RenderingResource& renderingResource) { return renderingResource.isNativeImage(); }
SPECIALIZE_TYPE_TRAITS_END()
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