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
|
/*
* 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 "Color.h"
#include "DecodingOptions.h"
#include "ImageBackingStore.h"
#include "ImageOrientation.h"
#include "ImageTypes.h"
#include "IntSize.h"
#include "NativeImage.h"
namespace WebCore {
class ImageFrame {
friend class ImageFrameCache;
public:
enum class Caching { Metadata, MetadataAndImage };
ImageFrame();
ImageFrame(const ImageFrame& other) { operator=(other); }
~ImageFrame();
static const ImageFrame& defaultFrame();
ImageFrame& operator=(const ImageFrame& other);
unsigned clearImage();
unsigned clear();
#if !USE(CG)
bool initialize(const ImageBackingStore&);
bool initialize(const IntSize&, bool premultiplyAlpha);
#endif
void setDecodingStatus(DecodingStatus);
DecodingStatus decodingStatus() const;
bool isInvalid() const { return m_decodingStatus == DecodingStatus::Invalid; }
bool isPartial() const { return m_decodingStatus == DecodingStatus::Partial; }
bool isComplete() const { return m_decodingStatus == DecodingStatus::Complete; }
IntSize size() const;
IntSize sizeRespectingOrientation() const { return !m_orientation.usesWidthAsHeight() ? size() : size().transposedSize(); }
unsigned frameBytes() const { return hasNativeImage() ? (size().area() * sizeof(RGBA32)).unsafeGet() : 0; }
SubsamplingLevel subsamplingLevel() const { return m_subsamplingLevel; }
#if !USE(CG)
enum class DisposalMethod { Unspecified, DoNotDispose, RestoreToBackground, RestoreToPrevious };
void setDisposalMethod(DisposalMethod method) { m_disposalMethod = method; }
DisposalMethod disposalMethod() const { return m_disposalMethod; }
#endif
NativeImagePtr nativeImage() const { return m_nativeImage; }
void setOrientation(ImageOrientation orientation) { m_orientation = orientation; };
ImageOrientation orientation() const { return m_orientation; }
void setDuration(float duration) { m_duration = duration; }
float duration() const { return m_duration; }
void setHasAlpha(bool hasAlpha) { m_hasAlpha = hasAlpha; }
bool hasAlpha() const { return !hasMetadata() || m_hasAlpha; }
bool hasNativeImage(const std::optional<SubsamplingLevel>& = { }) const;
bool hasFullSizeNativeImage(const std::optional<SubsamplingLevel>& = { }) const;
bool hasDecodedNativeImageCompatibleWithOptions(const std::optional<SubsamplingLevel>&, const DecodingOptions&) const;
bool hasMetadata() const { return !size().isEmpty(); }
#if !USE(CG)
ImageBackingStore* backingStore() const { return m_backingStore ? m_backingStore.get() : nullptr; }
bool hasBackingStore() const { return backingStore(); }
#endif
Color singlePixelSolidColor() const;
private:
DecodingStatus m_decodingStatus { DecodingStatus::Invalid };
IntSize m_size;
#if !USE(CG)
std::unique_ptr<ImageBackingStore> m_backingStore;
DisposalMethod m_disposalMethod { DisposalMethod::Unspecified };
#endif
NativeImagePtr m_nativeImage;
SubsamplingLevel m_subsamplingLevel { SubsamplingLevel::Default };
DecodingOptions m_decodingOptions;
ImageOrientation m_orientation { DefaultImageOrientation };
float m_duration { 0 };
bool m_hasAlpha { true };
};
}
|
