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/*
* Copyright (C) 2017-2023 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. AND ITS CONTRIBUTORS ``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 ITS 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 "ExceptionOr.h"
#include "IDLTypes.h"
#include "ScriptWrappable.h"
#include <atomic>
#include <wtf/RefCounted.h>
#include <wtf/UniqueRef.h>
namespace JSC {
class ArrayBuffer;
}
using JSC::ArrayBuffer;
namespace WebCore {
class Blob;
class CachedImage;
class CanvasBase;
class CSSStyleImageValue;
class DestinationColorSpace;
class FloatSize;
class GLFence;
class HTMLCanvasElement;
class HTMLImageElement;
class HTMLVideoElement;
class ImageBitmapImageObserver;
class ImageData;
class ImageBuffer;
class IntRect;
class IntSize;
#if ENABLE(OFFSCREEN_CANVAS)
class OffscreenCanvas;
#endif
class PendingImageBitmap;
class RenderElement;
class ScriptExecutionContext;
class SerializedImageBuffer;
class SVGImageElement;
#if ENABLE(WEB_CODECS)
class WebCodecsVideoFrame;
#endif
enum class RenderingMode : uint8_t;
struct ImageBitmapOptions;
template<typename IDLType> class DOMPromiseDeferred;
class DetachedImageBitmap {
public:
DetachedImageBitmap(DetachedImageBitmap&&);
WEBCORE_EXPORT ~DetachedImageBitmap();
DetachedImageBitmap& operator=(DetachedImageBitmap&&);
size_t memoryCost() const;
private:
DetachedImageBitmap(UniqueRef<SerializedImageBuffer>, bool originClean, bool premultiplyAlpha, bool forciblyPremultiplyAlpha);
UniqueRef<SerializedImageBuffer> m_bitmap;
bool m_originClean : 1 { false };
bool m_premultiplyAlpha : 1 { false };
bool m_forciblyPremultiplyAlpha : 1 { false };
friend class ImageBitmap;
};
class ImageBitmap final : public ScriptWrappable, public RefCounted<ImageBitmap> {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(ImageBitmap);
public:
using Source = std::variant<
RefPtr<HTMLImageElement>,
#if ENABLE(VIDEO)
RefPtr<HTMLVideoElement>,
#endif
RefPtr<HTMLCanvasElement>,
RefPtr<SVGImageElement>,
RefPtr<ImageBitmap>,
#if ENABLE(OFFSCREEN_CANVAS)
RefPtr<OffscreenCanvas>,
#endif
RefPtr<CSSStyleImageValue>,
#if ENABLE(WEB_CODECS)
RefPtr<WebCodecsVideoFrame>,
#endif
RefPtr<Blob>,
RefPtr<ImageData>
>;
using Promise = DOMPromiseDeferred<IDLInterface<ImageBitmap>>;
using ImageBitmapCompletionHandler = CompletionHandler<void(ExceptionOr<Ref<ImageBitmap>>&&)>;
static void createCompletionHandler(ScriptExecutionContext&, Source&&, ImageBitmapOptions&&, ImageBitmapCompletionHandler&&);
static void createPromise(ScriptExecutionContext&, Source&&, ImageBitmapOptions&&, Promise&&);
static void createPromise(ScriptExecutionContext&, Source&&, ImageBitmapOptions&&, int sx, int sy, int sw, int sh, Promise&&);
static RefPtr<ImageBuffer> createImageBuffer(ScriptExecutionContext&, const FloatSize&, RenderingMode, DestinationColorSpace, float resolutionScale = 1);
static RefPtr<ImageBuffer> createImageBuffer(ScriptExecutionContext&, const FloatSize&, DestinationColorSpace, float resolutionScale = 1);
static RefPtr<ImageBitmap> create(ScriptExecutionContext&, const IntSize&, DestinationColorSpace);
static Ref<ImageBitmap> create(ScriptExecutionContext&, DetachedImageBitmap);
static Ref<ImageBitmap> create(Ref<ImageBuffer>, bool originClean, bool premultiplyAlpha = false, bool forciblyPremultiplyAlpha = false);
~ImageBitmap();
ImageBuffer* buffer() const;
RefPtr<ImageBuffer> takeImageBuffer();
unsigned width() const;
unsigned height() const;
bool originClean() const { return m_originClean; }
bool premultiplyAlpha() const { return m_premultiplyAlpha; }
bool forciblyPremultiplyAlpha() const { return m_forciblyPremultiplyAlpha; }
std::optional<DetachedImageBitmap> detach();
bool isDetached() const { return !m_bitmap; }
void close();
#if USE(SKIA)
void prepareForCrossThreadTransfer();
void finalizeCrossThreadTransfer();
#endif
size_t memoryCost() const;
private:
friend class ImageBitmapImageObserver;
friend class PendingImageBitmap;
ImageBitmap(Ref<ImageBuffer>, bool originClean, bool premultiplyAlpha, bool forciblyPremultiplyAlpha);
static Ref<ImageBitmap> createBlankImageBuffer(ScriptExecutionContext&, bool originClean);
static void createCompletionHandler(ScriptExecutionContext&, RefPtr<HTMLImageElement>&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
static void createCompletionHandler(ScriptExecutionContext&, RefPtr<SVGImageElement>&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
static void createCompletionHandler(ScriptExecutionContext&, CachedImage*, RenderElement*, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
#if ENABLE(VIDEO)
static void createCompletionHandler(ScriptExecutionContext&, RefPtr<HTMLVideoElement>&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
#endif
static void createCompletionHandler(ScriptExecutionContext&, RefPtr<ImageBitmap>&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
static void createCompletionHandler(ScriptExecutionContext&, RefPtr<HTMLCanvasElement>&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
#if ENABLE(OFFSCREEN_CANVAS)
static void createCompletionHandler(ScriptExecutionContext&, RefPtr<OffscreenCanvas>&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
#endif
#if ENABLE(WEB_CODECS)
static void createCompletionHandler(ScriptExecutionContext&, RefPtr<WebCodecsVideoFrame>&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
#endif
static void createCompletionHandler(ScriptExecutionContext&, CanvasBase&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
static void createCompletionHandler(ScriptExecutionContext&, RefPtr<Blob>&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
static void createCompletionHandler(ScriptExecutionContext&, RefPtr<ImageData>&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
static void createCompletionHandler(ScriptExecutionContext&, RefPtr<CSSStyleImageValue>&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
static void createFromBuffer(ScriptExecutionContext&, Ref<ArrayBuffer>&&, String mimeType, long long expectedContentLength, const URL&, ImageBitmapOptions&&, std::optional<IntRect>, ImageBitmapCompletionHandler&&);
void updateMemoryCost();
RefPtr<ImageBuffer> m_bitmap;
std::atomic<size_t> m_memoryCost { 0 };
const bool m_originClean : 1 { false };
const bool m_premultiplyAlpha : 1 { false };
const bool m_forciblyPremultiplyAlpha : 1 { false };
#if USE(SKIA)
std::unique_ptr<GLFence> m_fence;
#endif
};
}
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