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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkGlyphCache_Globals_DEFINED | 8 #ifndef SkGlyphCache_Globals_DEFINED |
9 #define SkGlyphCache_Globals_DEFINED | 9 #define SkGlyphCache_Globals_DEFINED |
10 | 10 |
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35 | 35 |
36 ~SkGlyphCache_Globals() { | 36 ~SkGlyphCache_Globals() { |
37 SkGlyphCache* cache = fHead; | 37 SkGlyphCache* cache = fHead; |
38 while (cache) { | 38 while (cache) { |
39 SkGlyphCache* next = cache->fNext; | 39 SkGlyphCache* next = cache->fNext; |
40 delete cache; | 40 delete cache; |
41 cache = next; | 41 cache = next; |
42 } | 42 } |
43 } | 43 } |
44 | 44 |
45 SkSpinlock fLock; | 45 mutable SkSpinlock fLock; |
reed1
2016/06/22 16:05:36
make private?
| |
46 | 46 |
47 SkGlyphCache* internalGetHead() const { return fHead; } | 47 SkGlyphCache* internalGetHead() const { return fHead; } |
48 SkGlyphCache* internalGetTail() const; | 48 SkGlyphCache* internalGetTail() const; |
49 | 49 |
50 size_t getTotalMemoryUsed() const { return fTotalMemoryUsed; } | 50 size_t getTotalMemoryUsed() const; |
51 int getCacheCountUsed() const { return fCacheCount; } | 51 int getCacheCountUsed() const; |
52 | 52 |
53 #ifdef SK_DEBUG | 53 #ifdef SK_DEBUG |
54 void validate() const; | 54 void validate() const; |
55 #else | 55 #else |
56 void validate() const {} | 56 void validate() const {} |
57 #endif | 57 #endif |
58 | 58 |
59 int getCacheCountLimit() const { return fCacheCountLimit; } | 59 int getCacheCountLimit() const; |
60 int setCacheCountLimit(int limit); | 60 int setCacheCountLimit(int limit); |
61 | 61 |
62 size_t getCacheSizeLimit() const { return fCacheSizeLimit; } | 62 size_t getCacheSizeLimit() const; |
63 size_t setCacheSizeLimit(size_t limit); | 63 size_t setCacheSizeLimit(size_t limit); |
64 | 64 |
65 // returns true if this cache is over-budget either due to size limit | |
66 // or count limit. | |
67 bool isOverBudget() const { | |
68 return fCacheCount > fCacheCountLimit || | |
69 fTotalMemoryUsed > fCacheSizeLimit; | |
70 } | |
71 | |
72 void purgeAll(); // does not change budget | 65 void purgeAll(); // does not change budget |
73 | 66 |
74 // call when a glyphcache is available for caching (i.e. not in use) | 67 // call when a glyphcache is available for caching (i.e. not in use) |
75 void attachCacheToHead(SkGlyphCache*); | 68 void attachCacheToHead(SkGlyphCache*); |
76 | 69 |
77 // can only be called when the mutex is already held | 70 // can only be called when the mutex is already held |
78 void internalDetachCache(SkGlyphCache*); | 71 void internalDetachCache(SkGlyphCache*); |
79 void internalAttachCacheToHead(SkGlyphCache*); | 72 void internalAttachCacheToHead(SkGlyphCache*); |
80 | 73 |
81 private: | 74 private: |
82 SkGlyphCache* fHead; | 75 SkGlyphCache* fHead; |
83 size_t fTotalMemoryUsed; | 76 size_t fTotalMemoryUsed; |
84 size_t fCacheSizeLimit; | 77 size_t fCacheSizeLimit; |
85 int32_t fCacheCountLimit; | 78 int32_t fCacheCountLimit; |
86 int32_t fCacheCount; | 79 int32_t fCacheCount; |
87 | 80 |
88 // Checkout budgets, modulated by the specified min-bytes-needed-to-purge, | 81 // Checkout budgets, modulated by the specified min-bytes-needed-to-purge, |
89 // and attempt to purge caches to match. | 82 // and attempt to purge caches to match. |
90 // Returns number of bytes freed. | 83 // Returns number of bytes freed. |
91 size_t internalPurge(size_t minBytesNeeded = 0); | 84 size_t internalPurge(size_t minBytesNeeded = 0); |
92 }; | 85 }; |
93 | 86 |
94 #endif | 87 #endif |
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