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comparison: gfx/skia/trunk/include/images/SkImageRef_GlobalPool.h
gfx/skia/trunk/include/images/SkImageRef_GlobalPool.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:ac710f230afe |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2008 The Android Open Source Project | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 | |
| 10 #ifndef SkImageRef_GlobalPool_DEFINED | |
| 11 #define SkImageRef_GlobalPool_DEFINED | |
| 12 | |
| 13 #include "SkImageRef.h" | |
| 14 | |
| 15 class SkImageRef_GlobalPool : public SkImageRef { | |
| 16 public: | |
| 17 // if pool is null, use the global pool | |
| 18 SkImageRef_GlobalPool(const SkImageInfo&, SkStreamRewindable*, | |
| 19 int sampleSize = 1); | |
| 20 virtual ~SkImageRef_GlobalPool(); | |
| 21 | |
| 22 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkImageRef_GlobalPool) | |
| 23 | |
| 24 // API to control the global pool | |
| 25 | |
| 26 /** Return the amount specified as the budget for the cache (in bytes). | |
| 27 */ | |
| 28 static size_t GetRAMBudget(); | |
| 29 | |
| 30 /** Set a new budget value for the cache. | |
| 31 */ | |
| 32 static void SetRAMBudget(size_t); | |
| 33 | |
| 34 /** Return how much ram is currently in use by the global cache. | |
| 35 */ | |
| 36 static size_t GetRAMUsed(); | |
| 37 | |
| 38 /** Free up (approximately) enough such that the amount used by the cache | |
| 39 is <= the specified amount. Since some images may be "in use", the | |
| 40 amount actually freed may not always result in a ram usage value <= | |
| 41 to the requested amount. In addition, because of the | |
| 42 chunky nature of the cache, the resulting usage may be < the requested | |
| 43 amount. | |
| 44 */ | |
| 45 static void SetRAMUsed(size_t usageInBytes); | |
| 46 | |
| 47 static void DumpPool(); | |
| 48 | |
| 49 protected: | |
| 50 virtual bool onDecode(SkImageDecoder* codec, SkStreamRewindable* stream, | |
| 51 SkBitmap* bitmap, SkBitmap::Config config, | |
| 52 SkImageDecoder::Mode mode); | |
| 53 | |
| 54 virtual void onUnlockPixels(); | |
| 55 | |
| 56 SkImageRef_GlobalPool(SkReadBuffer&); | |
| 57 | |
| 58 private: | |
| 59 typedef SkImageRef INHERITED; | |
| 60 }; | |
| 61 | |
| 62 #endif |
