1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/*
* Copyright (C) 2017-2024 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 "DecodingOptions.h"
#include "ImageOrientation.h"
#include "ImageTypes.h"
#include "IntPoint.h"
#include "IntSize.h"
#include "PlatformImage.h"
#include <wtf/Seconds.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/ThreadSafeWeakPtr.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class FragmentedSharedBuffer;
class ImageFrame;
struct ImageDecoderFrameInfo {
bool hasAlpha;
Seconds duration;
};
class ImageDecoder : public ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr<ImageDecoder> {
WTF_MAKE_TZONE_ALLOCATED_EXPORT(ImageDecoder, WEBCORE_EXPORT);
public:
static RefPtr<ImageDecoder> create(FragmentedSharedBuffer&, const String& mimeType, AlphaOption, GammaAndColorProfileOption);
WEBCORE_EXPORT virtual ~ImageDecoder();
using FrameInfo = ImageDecoderFrameInfo;
enum class MediaType {
Image,
Video,
};
static bool supportsMediaType(MediaType);
#if ENABLE(GPU_PROCESS)
using SupportsMediaTypeFunc = Function<bool(MediaType)>;
using CanDecodeTypeFunc = Function<bool(const String&)>;
using CreateImageDecoderFunc = Function<RefPtr<ImageDecoder>(FragmentedSharedBuffer&, const String&, AlphaOption, GammaAndColorProfileOption)>;
struct ImageDecoderFactory {
SupportsMediaTypeFunc supportsMediaType;
CanDecodeTypeFunc canDecodeType;
CreateImageDecoderFunc createImageDecoder;
};
WEBCORE_EXPORT static void installFactory(ImageDecoderFactory&&);
WEBCORE_EXPORT static void resetFactories();
WEBCORE_EXPORT static void clearFactories();
#endif
virtual size_t bytesDecodedToDetermineProperties() const = 0;
virtual EncodedDataStatus encodedDataStatus() const = 0;
virtual void setEncodedDataStatusChangeCallback(Function<void(EncodedDataStatus)>&&) { }
virtual bool isSizeAvailable() const { return encodedDataStatus() >= EncodedDataStatus::SizeAvailable; }
virtual IntSize size() const = 0;
virtual size_t frameCount() const = 0;
virtual size_t primaryFrameIndex() const { return 0; }
virtual RepetitionCount repetitionCount() const = 0;
virtual String uti() const { return emptyString(); }
virtual String filenameExtension() const = 0;
virtual String accessibilityDescription() const { return emptyString(); };
virtual std::optional<IntPoint> hotSpot() const = 0;
#if ENABLE(QUICKLOOK_FULLSCREEN)
virtual bool shouldUseQuickLookForFullscreen() const { return false; }
#endif
#if ENABLE(SPATIAL_IMAGE_DETECTION)
virtual bool isSpatial() const { return false; }
#endif
virtual IntSize frameSizeAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const = 0;
virtual bool frameIsCompleteAtIndex(size_t) const = 0;
virtual ImageOrientation frameOrientationAtIndex(size_t) const { return ImageOrientation::Orientation::None; }
virtual Headroom frameHeadroomAtIndex(size_t) const { return Headroom::None; }
virtual std::optional<IntSize> frameDensityCorrectedSizeAtIndex(size_t) const { return std::nullopt; }
virtual Seconds frameDurationAtIndex(size_t) const = 0;
virtual bool frameHasAlphaAtIndex(size_t) const = 0;
virtual unsigned frameBytesAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const = 0;
WEBCORE_EXPORT virtual bool fetchFrameMetaDataAtIndex(size_t, SubsamplingLevel, const DecodingOptions&, ImageFrame&) const;
virtual PlatformImagePtr createFrameImageAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default, const DecodingOptions& = DecodingOptions(DecodingMode::Synchronous)) = 0;
virtual void setExpectedContentSize(long long) { }
virtual void setData(const FragmentedSharedBuffer&, bool allDataReceived) = 0;
virtual bool isAllDataReceived() const = 0;
virtual void clearFrameBufferCache(size_t) = 0;
protected:
WEBCORE_EXPORT ImageDecoder();
};
} // namespace WebCore
|
