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
|
/*
* Copyright (C) 2021 Igalia S.L. All rights reserved.
* Copyright (C) 2022 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 "ScalableImageDecoder.h"
namespace WebCore {
class AVIFImageReader;
// This class decodes the AVIF image format.
class AVIFImageDecoder final : public ScalableImageDecoder {
public:
static Ref<ScalableImageDecoder> create(AlphaOption alphaOption, GammaAndColorProfileOption gammaAndColorProfileOption)
{
return adoptRef(*new AVIFImageDecoder(alphaOption, gammaAndColorProfileOption));
}
virtual ~AVIFImageDecoder();
// ScalableImageDecoder
String filenameExtension() const final { return "avif"_s; }
size_t frameCount() const final { return m_frameCount; };
RepetitionCount repetitionCount() const final;
ScalableImageDecoderFrame* frameBufferAtIndex(size_t index) final WTF_REQUIRES_LOCK(m_lock);
bool setFailed() final;
private:
AVIFImageDecoder(AlphaOption, GammaAndColorProfileOption);
void tryDecodeSize(bool allDataReceived) final;
void decode(size_t frameIndex, bool allDataReceived) WTF_REQUIRES_LOCK(m_lock);
bool isComplete() WTF_REQUIRES_LOCK(m_lock);
size_t findFirstRequiredFrameToDecode(size_t frameIndex) WTF_REQUIRES_LOCK(m_lock);
std::unique_ptr<AVIFImageReader> m_reader { nullptr };
size_t m_frameCount { 0 };
int m_repetitionCount { 0 };
};
} // namespace WebCore
|
