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1 /* | 1 /* |
2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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59 // | 59 // |
60 // THREAD SAFETY | 60 // THREAD SAFETY |
61 // | 61 // |
62 // All public methods can be used on any thread. | 62 // All public methods can be used on any thread. |
63 | 63 |
64 class PLATFORM_EXPORT ImageDecodingStore { | 64 class PLATFORM_EXPORT ImageDecodingStore { |
65 public: | 65 public: |
66 static PassOwnPtr<ImageDecodingStore> create() { return adoptPtr(new ImageDe
codingStore); } | 66 static PassOwnPtr<ImageDecodingStore> create() { return adoptPtr(new ImageDe
codingStore); } |
67 ~ImageDecodingStore(); | 67 ~ImageDecodingStore(); |
68 | 68 |
69 static ImageDecodingStore* instance(); | 69 static ImageDecodingStore& instance(); |
70 | 70 |
71 // Access a cached decoder object. A decoder is indexed by origin (ImageFram
eGenerator) | 71 // Access a cached decoder object. A decoder is indexed by origin (ImageFram
eGenerator) |
72 // and scaled size. Return true if the cached object is found. | 72 // and scaled size. Return true if the cached object is found. |
73 bool lockDecoder(const ImageFrameGenerator*, const SkISize& scaledSize, Imag
eDecoder**); | 73 bool lockDecoder(const ImageFrameGenerator*, const SkISize& scaledSize, Imag
eDecoder**); |
74 void unlockDecoder(const ImageFrameGenerator*, const ImageDecoder*); | 74 void unlockDecoder(const ImageFrameGenerator*, const ImageDecoder*); |
75 void insertDecoder(const ImageFrameGenerator*, PassOwnPtr<ImageDecoder>); | 75 void insertDecoder(const ImageFrameGenerator*, PassOwnPtr<ImageDecoder>); |
76 void removeDecoder(const ImageFrameGenerator*, const ImageDecoder*); | 76 void removeDecoder(const ImageFrameGenerator*, const ImageDecoder*); |
77 | 77 |
78 // Remove all cache entries indexed by ImageFrameGenerator. | 78 // Remove all cache entries indexed by ImageFrameGenerator. |
79 void removeCacheIndexedByGenerator(const ImageFrameGenerator*); | 79 void removeCacheIndexedByGenerator(const ImageFrameGenerator*); |
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211 // m_heapLimitInBytes | 211 // m_heapLimitInBytes |
212 // m_heapMemoryUsageInBytes | 212 // m_heapMemoryUsageInBytes |
213 // This mutex also protects calls to underlying skBitmap's | 213 // This mutex also protects calls to underlying skBitmap's |
214 // lockPixels()/unlockPixels() as they are not threadsafe. | 214 // lockPixels()/unlockPixels() as they are not threadsafe. |
215 Mutex m_mutex; | 215 Mutex m_mutex; |
216 }; | 216 }; |
217 | 217 |
218 } // namespace blink | 218 } // namespace blink |
219 | 219 |
220 #endif | 220 #endif |
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