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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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21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 */ | 24 */ |
25 | 25 |
26 #ifndef ImageDecodingStore_h | 26 #ifndef ImageDecodingStore_h |
27 #define ImageDecodingStore_h | 27 #define ImageDecodingStore_h |
28 | 28 |
29 #include "SkSize.h" | 29 #include "SkSize.h" |
30 #include "SkTypes.h" | 30 #include "SkTypes.h" |
31 #include "core/platform/graphics/DiscardablePixelRef.h" | 31 #include "platform/PlatformExport.h" |
32 #include "core/platform/image-decoders/ImageDecoder.h" | 32 #include "platform/graphics/DiscardablePixelRef.h" |
33 #include "platform/graphics/ScaledImageFragment.h" | 33 #include "platform/graphics/ScaledImageFragment.h" |
34 #include "platform/graphics/SkSizeHash.h" | 34 #include "platform/graphics/skia/SkSizeHash.h" |
| 35 #include "platform/image-decoders/ImageDecoder.h" |
35 | 36 |
36 #include "wtf/DoublyLinkedList.h" | 37 #include "wtf/DoublyLinkedList.h" |
37 #include "wtf/HashSet.h" | 38 #include "wtf/HashSet.h" |
38 #include "wtf/OwnPtr.h" | 39 #include "wtf/OwnPtr.h" |
39 #include "wtf/PassOwnPtr.h" | 40 #include "wtf/PassOwnPtr.h" |
40 #include "wtf/ThreadingPrimitives.h" | 41 #include "wtf/ThreadingPrimitives.h" |
41 #include "wtf/Vector.h" | 42 #include "wtf/Vector.h" |
42 | 43 |
43 namespace WebCore { | 44 namespace WebCore { |
44 | 45 |
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75 // using an ImageDecoder. It contains encoded image data and is used to repres
ent | 76 // using an ImageDecoder. It contains encoded image data and is used to repres
ent |
76 // one image file. It is used to index image and decoder objects in the cache. | 77 // one image file. It is used to index image and decoder objects in the cache. |
77 // | 78 // |
78 // LazyDecodingPixelRef | 79 // LazyDecodingPixelRef |
79 // A read only user of this cache. | 80 // A read only user of this cache. |
80 // | 81 // |
81 // THREAD SAFETY | 82 // THREAD SAFETY |
82 // | 83 // |
83 // All public methods can be used on any thread. | 84 // All public methods can be used on any thread. |
84 | 85 |
85 class ImageDecodingStore { | 86 class PLATFORM_EXPORT ImageDecodingStore { |
86 public: | 87 public: |
87 static PassOwnPtr<ImageDecodingStore> create() { return adoptPtr(new ImageDe
codingStore); } | 88 static PassOwnPtr<ImageDecodingStore> create() { return adoptPtr(new ImageDe
codingStore); } |
88 ~ImageDecodingStore(); | 89 ~ImageDecodingStore(); |
89 | 90 |
90 static ImageDecodingStore* instance(); | 91 static ImageDecodingStore* instance(); |
91 static void initializeOnce(); | 92 static void initializeOnce(); |
92 static void shutdown(); | 93 static void shutdown(); |
93 | 94 |
94 // Access a complete cached image object. A complete cached image object is | 95 // Access a complete cached image object. A complete cached image object is |
95 // indexed by the origin (ImageFrameGenerator), scaled size and frame index | 96 // indexed by the origin (ImageFrameGenerator), scaled size and frame index |
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314 // m_cacheLimitInBytes | 315 // m_cacheLimitInBytes |
315 // m_memoryUsageInBytes | 316 // m_memoryUsageInBytes |
316 // This mutex also protects calls to underlying skBitmap's | 317 // This mutex also protects calls to underlying skBitmap's |
317 // lockPixels()/unlockPixels() as they are not threadsafe. | 318 // lockPixels()/unlockPixels() as they are not threadsafe. |
318 Mutex m_mutex; | 319 Mutex m_mutex; |
319 }; | 320 }; |
320 | 321 |
321 } // namespace WebCore | 322 } // namespace WebCore |
322 | 323 |
323 #endif | 324 #endif |
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