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/*
* Copyright (C) 2016 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 "ImageDecoder.h"
#if USE(CG)
namespace WebCore {
class ImageDecoderCG final : public ImageDecoder {
WTF_MAKE_FAST_ALLOCATED;
public:
ImageDecoderCG(FragmentedSharedBuffer& data, AlphaOption, GammaAndColorProfileOption);
static Ref<ImageDecoderCG> create(FragmentedSharedBuffer& data, AlphaOption alphaOption, GammaAndColorProfileOption gammaAndColorProfileOption)
{
return adoptRef(*new ImageDecoderCG(data, alphaOption, gammaAndColorProfileOption));
}
static bool supportsMediaType(MediaType type) { return type == MediaType::Image; }
static bool canDecodeType(const String&);
size_t bytesDecodedToDetermineProperties() const final;
EncodedDataStatus encodedDataStatus() const final;
IntSize size() const final { return IntSize(); }
size_t frameCount() const final;
RepetitionCount repetitionCount() const final;
String uti() const final;
String filenameExtension() const final;
String accessibilityDescription() const final;
std::optional<IntPoint> hotSpot() const final;
IntSize frameSizeAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const final;
bool frameIsCompleteAtIndex(size_t) const final;
ImageDecoder::FrameMetadata frameMetadataAtIndex(size_t) const final;
Seconds frameDurationAtIndex(size_t) const final;
bool frameHasAlphaAtIndex(size_t) const final;
bool frameAllowSubsamplingAtIndex(size_t) const final;
unsigned frameBytesAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const final;
PlatformImagePtr createFrameImageAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default, const DecodingOptions& = DecodingOptions(DecodingMode::Synchronous)) final;
void setData(const FragmentedSharedBuffer&, bool allDataReceived) final;
bool isAllDataReceived() const final { return m_isAllDataReceived; }
void clearFrameBufferCache(size_t) final { }
WEBCORE_EXPORT static void enableDecodingHEIC();
static bool decodingHEICEnabled();
WEBCORE_EXPORT static void disableHardwareAcceleratedDecoding();
static bool hardwareAcceleratedDecodingDisabled();
private:
bool m_isAllDataReceived { false };
mutable EncodedDataStatus m_encodedDataStatus { EncodedDataStatus::Unknown };
RetainPtr<CGImageSourceRef> m_nativeDecoder;
static bool s_enableDecodingHEIC;
static bool s_hardwareAcceleratedDecodingDisabled;
};
} // namespace WebCore
#endif // USE(CG)