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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 <WebCore/ImageTypes.h>
#include <WebCore/PlatformExportMacros.h>
#include <WebCore/PlatformImage.h>
#include <WebCore/RenderingResource.h>
#include <wtf/CheckedRef.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/UniqueRef.h>
#if USE(SKIA)
class GrDirectContext;
#endif
namespace WebCore {
class Color;
class DestinationColorSpace;
class FloatRect;
class GraphicsContext;
class IntSize;
class NativeImageBackend;
struct ImagePaintingOptions;
class NativeImage : public ThreadSafeRefCounted<NativeImage>, public CanMakeThreadSafeCheckedPtr<NativeImage> {
WTF_MAKE_TZONE_ALLOCATED(NativeImage);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(NativeImage);
public:
#if USE(SKIA)
static WEBCORE_EXPORT RefPtr<NativeImage> create(PlatformImagePtr&&, GrDirectContext* = nullptr);
// 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&&, GrDirectContext* = nullptr);
#else
static WEBCORE_EXPORT RefPtr<NativeImage> create(PlatformImagePtr&&);
// 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&&);
#endif
WEBCORE_EXPORT virtual ~NativeImage();
WEBCORE_EXPORT virtual const PlatformImagePtr& platformImage() const;
WEBCORE_EXPORT virtual IntSize size() const;
WEBCORE_EXPORT virtual bool hasAlpha() const;
std::optional<Color> singlePixelSolidColor() const;
WEBCORE_EXPORT virtual DestinationColorSpace colorSpace() const;
WEBCORE_EXPORT bool hasHDRContent() const;
WEBCORE_EXPORT Headroom headroom() const;
void clearSubimages();
WEBCORE_EXPORT void replacePlatformImage(PlatformImagePtr&&);
#if USE(COORDINATED_GRAPHICS)
uint64_t uniqueID() const;
#endif
#if USE(SKIA)
GrDirectContext* grContext() const { return m_grContext; }
#endif
void addObserver(WeakRef<RenderingResourceObserver>&& observer)
{
m_observers.add(WTF::move(observer));
}
RenderingResourceIdentifier renderingResourceIdentifier() const
{
return m_renderingResourceIdentifier;
}
protected:
#if USE(SKIA)
WEBCORE_EXPORT NativeImage(PlatformImagePtr&&, GrDirectContext* = nullptr);
#else
WEBCORE_EXPORT NativeImage(PlatformImagePtr&&);
#endif
void computeHeadroom();
mutable PlatformImagePtr m_platformImage;
mutable Headroom m_headroom { Headroom::None };
mutable WeakHashSet<RenderingResourceObserver> m_observers;
RenderingResourceIdentifier m_renderingResourceIdentifier { RenderingResourceIdentifier::generate() };
#if USE(SKIA)
GrDirectContext* m_grContext { nullptr };
#endif
};
} // namespace WebCore
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