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Side by Side Diff: third_party/WebKit/Source/platform/graphics/ImageSource.cpp

Issue 2054643003: Remove duplication of encoded image data (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: (rebase) Created 4 years, 5 months ago
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1 /* 1 /*
2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. 2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
3 * Copyright (C) 2007 Alp Toker <alp.toker@collabora.co.uk> 3 * Copyright (C) 2007 Alp Toker <alp.toker@collabora.co.uk>
4 * Copyright (C) 2008, Google Inc. All rights reserved. 4 * Copyright (C) 2008, Google Inc. All rights reserved.
5 * 5 *
6 * Redistribution and use in source and binary forms, with or without 6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions 7 * modification, are permitted provided that the following conditions
8 * are met: 8 * are met:
9 * 1. Redistributions of source code must retain the above copyright 9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer. 10 * notice, this list of conditions and the following disclaimer.
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39 39
40 ImageSource::~ImageSource() 40 ImageSource::~ImageSource()
41 { 41 {
42 } 42 }
43 43
44 size_t ImageSource::clearCacheExceptFrame(size_t clearExceptFrame) 44 size_t ImageSource::clearCacheExceptFrame(size_t clearExceptFrame)
45 { 45 {
46 return m_decoder ? m_decoder->clearCacheExceptFrame(clearExceptFrame) : 0; 46 return m_decoder ? m_decoder->clearCacheExceptFrame(clearExceptFrame) : 0;
47 } 47 }
48 48
49 PassRefPtr<SharedBuffer> ImageSource::data()
50 {
51 return m_decoder ? m_decoder->data() : nullptr;
52 }
53
49 void ImageSource::setData(SharedBuffer& data, bool allDataReceived) 54 void ImageSource::setData(SharedBuffer& data, bool allDataReceived)
50 { 55 {
51 // Create a decoder by sniffing the encoded data. If insufficient data bytes are available to 56 // Create a decoder by sniffing the encoded data. If insufficient data bytes are available to
52 // determine the encoded image type, no decoder is created. 57 // determine the encoded image type, no decoder is created.
53 if (!m_decoder) 58 if (!m_decoder)
54 m_decoder = DeferredImageDecoder::create(data, ImageDecoder::AlphaPremul tiplied, ImageDecoder::GammaAndColorProfileApplied); 59 m_decoder = DeferredImageDecoder::create(data, ImageDecoder::AlphaPremul tiplied, ImageDecoder::GammaAndColorProfileApplied);
55 60
56 if (m_decoder) 61 if (m_decoder)
57 m_decoder->setData(data, allDataReceived); 62 m_decoder->setData(data, allDataReceived);
58 } 63 }
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141 { 146 {
142 return m_decoder && m_decoder->frameIsCompleteAtIndex(index); 147 return m_decoder && m_decoder->frameIsCompleteAtIndex(index);
143 } 148 }
144 149
145 size_t ImageSource::frameBytesAtIndex(size_t index) const 150 size_t ImageSource::frameBytesAtIndex(size_t index) const
146 { 151 {
147 return m_decoder ? m_decoder->frameBytesAtIndex(index) : 0; 152 return m_decoder ? m_decoder->frameBytesAtIndex(index) : 0;
148 } 153 }
149 154
150 } // namespace blink 155 } // namespace blink
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