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| 1 /* | 1 /* |
| 2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 GrTextBlobCache_DEFINED | 8 #ifndef GrTextBlobCache_DEFINED |
| 9 #define GrTextBlobCache_DEFINED | 9 #define GrTextBlobCache_DEFINED |
| 10 | 10 |
| (...skipping 12 matching lines...) Expand all Loading... |
| 23 GrTextBlobCache(PFOverBudgetCB cb, void* data) | 23 GrTextBlobCache(PFOverBudgetCB cb, void* data) |
| 24 : fPool(kPreAllocSize, kMinGrowthSize) | 24 : fPool(kPreAllocSize, kMinGrowthSize) |
| 25 , fCallback(cb) | 25 , fCallback(cb) |
| 26 , fData(data) | 26 , fData(data) |
| 27 , fBudget(kDefaultBudget) { | 27 , fBudget(kDefaultBudget) { |
| 28 SkASSERT(cb && data); | 28 SkASSERT(cb && data); |
| 29 } | 29 } |
| 30 ~GrTextBlobCache(); | 30 ~GrTextBlobCache(); |
| 31 | 31 |
| 32 // creates an uncached blob | 32 // creates an uncached blob |
| 33 GrAtlasTextBlob* createBlob(int glyphCount, int runCount, size_t maxVASize); | 33 GrAtlasTextBlob* createBlob(int glyphCount, int runCount) { |
| 34 GrAtlasTextBlob* createBlob(const SkTextBlob* blob, size_t maxVAStride) { | 34 return GrAtlasTextBlob::Create(&fPool, glyphCount, runCount); |
| 35 } |
| 36 GrAtlasTextBlob* createBlob(const SkTextBlob* blob) { |
| 35 int glyphCount = 0; | 37 int glyphCount = 0; |
| 36 int runCount = 0; | 38 int runCount = 0; |
| 37 BlobGlyphCount(&glyphCount, &runCount, blob); | 39 BlobGlyphCount(&glyphCount, &runCount, blob); |
| 38 GrAtlasTextBlob* cacheBlob = this->createBlob(glyphCount, runCount, maxV
AStride); | 40 GrAtlasTextBlob* cacheBlob = GrAtlasTextBlob::Create(&fPool, glyphCount,
runCount); |
| 39 return cacheBlob; | 41 return cacheBlob; |
| 40 } | 42 } |
| 41 | 43 |
| 42 static void SetupCacheBlobKey(GrAtlasTextBlob* cacheBlob, | |
| 43 const GrAtlasTextBlob::Key& key, | |
| 44 const SkMaskFilter::BlurRec& blurRec, | |
| 45 const SkPaint& paint) { | |
| 46 cacheBlob->fKey = key; | |
| 47 if (key.fHasBlur) { | |
| 48 cacheBlob->fBlurRec = blurRec; | |
| 49 } | |
| 50 if (key.fStyle != SkPaint::kFill_Style) { | |
| 51 cacheBlob->fStrokeInfo.fFrameWidth = paint.getStrokeWidth(); | |
| 52 cacheBlob->fStrokeInfo.fMiterLimit = paint.getStrokeMiter(); | |
| 53 cacheBlob->fStrokeInfo.fJoin = paint.getStrokeJoin(); | |
| 54 } | |
| 55 } | |
| 56 | |
| 57 GrAtlasTextBlob* createCachedBlob(const SkTextBlob* blob, | 44 GrAtlasTextBlob* createCachedBlob(const SkTextBlob* blob, |
| 58 const GrAtlasTextBlob::Key& key, | 45 const GrAtlasTextBlob::Key& key, |
| 59 const SkMaskFilter::BlurRec& blurRec, | 46 const SkMaskFilter::BlurRec& blurRec, |
| 60 const SkPaint& paint, | 47 const SkPaint& paint) { |
| 61 size_t maxVAStride) { | |
| 62 int glyphCount = 0; | 48 int glyphCount = 0; |
| 63 int runCount = 0; | 49 int runCount = 0; |
| 64 BlobGlyphCount(&glyphCount, &runCount, blob); | 50 BlobGlyphCount(&glyphCount, &runCount, blob); |
| 65 GrAtlasTextBlob* cacheBlob = this->createBlob(glyphCount, runCount, maxV
AStride); | 51 GrAtlasTextBlob* cacheBlob = GrAtlasTextBlob::Create(&fPool, glyphCount,
runCount); |
| 66 SetupCacheBlobKey(cacheBlob, key, blurRec, paint); | 52 cacheBlob->setupKey(key, blurRec, paint); |
| 67 this->add(cacheBlob); | 53 this->add(cacheBlob); |
| 68 return cacheBlob; | 54 return cacheBlob; |
| 69 } | 55 } |
| 70 | 56 |
| 71 GrAtlasTextBlob* find(const GrAtlasTextBlob::Key& key) { | 57 GrAtlasTextBlob* find(const GrAtlasTextBlob::Key& key) { |
| 72 return fCache.find(key); | 58 return fCache.find(key); |
| 73 } | 59 } |
| 74 | 60 |
| 75 void remove(GrAtlasTextBlob* blob) { | 61 void remove(GrAtlasTextBlob* blob) { |
| 76 fCache.remove(blob->fKey); | 62 fCache.remove(blob->key()); |
| 77 fBlobList.remove(blob); | 63 fBlobList.remove(blob); |
| 78 blob->unref(); | 64 blob->unref(); |
| 79 } | 65 } |
| 80 | 66 |
| 81 void add(GrAtlasTextBlob* blob) { | 67 void add(GrAtlasTextBlob* blob) { |
| 82 fCache.add(blob); | 68 fCache.add(blob); |
| 83 fBlobList.addToHead(blob); | 69 fBlobList.addToHead(blob); |
| 84 | 70 |
| 85 this->checkPurge(blob); | 71 this->checkPurge(blob); |
| 86 } | 72 } |
| (...skipping 25 matching lines...) Expand all Loading... |
| 112 private: | 98 private: |
| 113 typedef SkTInternalLList<GrAtlasTextBlob> BitmapBlobList; | 99 typedef SkTInternalLList<GrAtlasTextBlob> BitmapBlobList; |
| 114 | 100 |
| 115 void checkPurge(GrAtlasTextBlob* blob = nullptr) { | 101 void checkPurge(GrAtlasTextBlob* blob = nullptr) { |
| 116 // If we are overbudget, then unref until we are below budget again | 102 // If we are overbudget, then unref until we are below budget again |
| 117 if (fPool.size() > fBudget) { | 103 if (fPool.size() > fBudget) { |
| 118 BitmapBlobList::Iter iter; | 104 BitmapBlobList::Iter iter; |
| 119 iter.init(fBlobList, BitmapBlobList::Iter::kTail_IterStart); | 105 iter.init(fBlobList, BitmapBlobList::Iter::kTail_IterStart); |
| 120 GrAtlasTextBlob* lruBlob = nullptr; | 106 GrAtlasTextBlob* lruBlob = nullptr; |
| 121 while (fPool.size() > fBudget && (lruBlob = iter.get()) && lruBlob !
= blob) { | 107 while (fPool.size() > fBudget && (lruBlob = iter.get()) && lruBlob !
= blob) { |
| 122 fCache.remove(lruBlob->fKey); | 108 fCache.remove(lruBlob->key()); |
| 123 | 109 |
| 124 // Backup the iterator before removing and unrefing the blob | 110 // Backup the iterator before removing and unrefing the blob |
| 125 iter.prev(); | 111 iter.prev(); |
| 126 fBlobList.remove(lruBlob); | 112 fBlobList.remove(lruBlob); |
| 127 lruBlob->unref(); | 113 lruBlob->unref(); |
| 128 } | 114 } |
| 129 | 115 |
| 130 // If we break out of the loop with lruBlob == blob, then we haven't
purged enough | 116 // If we break out of the loop with lruBlob == blob, then we haven't
purged enough |
| 131 // use the call back and try to free some more. If we are still ove
rbudget after this, | 117 // use the call back and try to free some more. If we are still ove
rbudget after this, |
| 132 // then this single textblob is over our budget | 118 // then this single textblob is over our budget |
| (...skipping 16 matching lines...) Expand all Loading... |
| 149 static const int kDefaultBudget = 1 << 22; | 135 static const int kDefaultBudget = 1 << 22; |
| 150 BitmapBlobList fBlobList; | 136 BitmapBlobList fBlobList; |
| 151 SkTDynamicHash<GrAtlasTextBlob, GrAtlasTextBlob::Key> fCache; | 137 SkTDynamicHash<GrAtlasTextBlob, GrAtlasTextBlob::Key> fCache; |
| 152 GrMemoryPool fPool; | 138 GrMemoryPool fPool; |
| 153 PFOverBudgetCB fCallback; | 139 PFOverBudgetCB fCallback; |
| 154 void* fData; | 140 void* fData; |
| 155 size_t fBudget; | 141 size_t fBudget; |
| 156 }; | 142 }; |
| 157 | 143 |
| 158 #endif | 144 #endif |
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