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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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105 friend class WTF::DoublyLinkedListNode<CacheEntry>; | 105 friend class WTF::DoublyLinkedListNode<CacheEntry>; |
106 | 106 |
107 public: | 107 public: |
108 enum CacheType { | 108 enum CacheType { |
109 TypeDecoder, | 109 TypeDecoder, |
110 }; | 110 }; |
111 | 111 |
112 CacheEntry(const ImageFrameGenerator* generator, int useCount) | 112 CacheEntry(const ImageFrameGenerator* generator, int useCount) |
113 : m_generator(generator), m_useCount(useCount), m_prev(0), m_next(0) {} | 113 : m_generator(generator), m_useCount(useCount), m_prev(0), m_next(0) {} |
114 | 114 |
115 virtual ~CacheEntry() { ASSERT(!m_useCount); } | 115 virtual ~CacheEntry() { DCHECK(!m_useCount); } |
116 | 116 |
117 const ImageFrameGenerator* generator() const { return m_generator; } | 117 const ImageFrameGenerator* generator() const { return m_generator; } |
118 int useCount() const { return m_useCount; } | 118 int useCount() const { return m_useCount; } |
119 void incrementUseCount() { ++m_useCount; } | 119 void incrementUseCount() { ++m_useCount; } |
120 void decrementUseCount() { | 120 void decrementUseCount() { |
121 --m_useCount; | 121 --m_useCount; |
122 ASSERT(m_useCount >= 0); | 122 DCHECK_GE(m_useCount, 0); |
123 } | 123 } |
124 | 124 |
125 // FIXME: getSafeSize() returns the size in bytes truncated to a 32-bit | 125 // FIXME: getSafeSize() returns the size in bytes truncated to a 32-bit |
126 // integer. Find a way to get the size in 64-bits. | 126 // integer. Find a way to get the size in 64-bits. |
127 virtual size_t memoryUsageInBytes() const = 0; | 127 virtual size_t memoryUsageInBytes() const = 0; |
128 virtual CacheType type() const = 0; | 128 virtual CacheType type() const = 0; |
129 | 129 |
130 protected: | 130 protected: |
131 const ImageFrameGenerator* m_generator; | 131 const ImageFrameGenerator* m_generator; |
132 int m_useCount; | 132 int m_useCount; |
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246 // m_heapLimitInBytes | 246 // m_heapLimitInBytes |
247 // m_heapMemoryUsageInBytes | 247 // m_heapMemoryUsageInBytes |
248 // This mutex also protects calls to underlying skBitmap's | 248 // This mutex also protects calls to underlying skBitmap's |
249 // lockPixels()/unlockPixels() as they are not threadsafe. | 249 // lockPixels()/unlockPixels() as they are not threadsafe. |
250 Mutex m_mutex; | 250 Mutex m_mutex; |
251 }; | 251 }; |
252 | 252 |
253 } // namespace blink | 253 } // namespace blink |
254 | 254 |
255 #endif | 255 #endif |
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