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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 kTypeDecoder, | 109 kTypeDecoder, |
| 110 }; | 110 }; |
| 111 | 111 |
| 112 CacheEntry(const ImageFrameGenerator* generator, int use_count) | 112 CacheEntry(const ImageFrameGenerator* generator, int use_count) |
| 113 : generator_(generator), use_count_(use_count), prev_(0), next_(0) {} | 113 : generator_(generator), use_count_(use_count), prev_(0), next_(0) {} |
| 114 | 114 |
| 115 virtual ~CacheEntry() { ASSERT(!use_count_); } | 115 virtual ~CacheEntry() { DCHECK(!use_count_); } |
| 116 | 116 |
| 117 const ImageFrameGenerator* Generator() const { return generator_; } | 117 const ImageFrameGenerator* Generator() const { return generator_; } |
| 118 int UseCount() const { return use_count_; } | 118 int UseCount() const { return use_count_; } |
| 119 void IncrementUseCount() { ++use_count_; } | 119 void IncrementUseCount() { ++use_count_; } |
| 120 void DecrementUseCount() { | 120 void DecrementUseCount() { |
| 121 --use_count_; | 121 --use_count_; |
| 122 ASSERT(use_count_ >= 0); | 122 DCHECK_GE(use_count_, 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 GetType() const = 0; | 128 virtual CacheType GetType() const = 0; |
| 129 | 129 |
| 130 protected: | 130 protected: |
| 131 const ImageFrameGenerator* generator_; | 131 const ImageFrameGenerator* generator_; |
| 132 int use_count_; | 132 int use_count_; |
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| 244 // m_heapLimitInBytes | 244 // m_heapLimitInBytes |
| 245 // m_heapMemoryUsageInBytes | 245 // m_heapMemoryUsageInBytes |
| 246 // This mutex also protects calls to underlying skBitmap's | 246 // This mutex also protects calls to underlying skBitmap's |
| 247 // lockPixels()/unlockPixels() as they are not threadsafe. | 247 // lockPixels()/unlockPixels() as they are not threadsafe. |
| 248 Mutex mutex_; | 248 Mutex mutex_; |
| 249 }; | 249 }; |
| 250 | 250 |
| 251 } // namespace blink | 251 } // namespace blink |
| 252 | 252 |
| 253 #endif | 253 #endif |
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