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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 #include "GrAtlas.h" | 8 #include "GrAtlas.h" |
9 #include "GrGpu.h" | 9 #include "GrGpu.h" |
10 #include "GrRectanizer.h" | 10 #include "GrRectanizer.h" |
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43 fAtlasMgr = SkNEW_ARGS(GrAtlasMgr, (fGpu)); | 43 fAtlasMgr = SkNEW_ARGS(GrAtlasMgr, (fGpu)); |
44 } | 44 } |
45 GrTextStrike* strike = SkNEW_ARGS(GrTextStrike, | 45 GrTextStrike* strike = SkNEW_ARGS(GrTextStrike, |
46 (this, scaler->getKey(), | 46 (this, scaler->getKey(), |
47 scaler->getMaskFormat(), fAtlasMgr)); | 47 scaler->getMaskFormat(), fAtlasMgr)); |
48 fCache.insert(key, strike); | 48 fCache.insert(key, strike); |
49 | 49 |
50 if (fHead) { | 50 if (fHead) { |
51 fHead->fPrev = strike; | 51 fHead->fPrev = strike; |
52 } else { | 52 } else { |
53 GrAssert(NULL == fTail); | 53 SkASSERT(NULL == fTail); |
54 fTail = strike; | 54 fTail = strike; |
55 } | 55 } |
56 strike->fPrev = NULL; | 56 strike->fPrev = NULL; |
57 strike->fNext = fHead; | 57 strike->fNext = fHead; |
58 fHead = strike; | 58 fHead = strike; |
59 | 59 |
60 return strike; | 60 return strike; |
61 } | 61 } |
62 | 62 |
63 void GrFontCache::freeAll() { | 63 void GrFontCache::freeAll() { |
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75 if (strike == preserveStrike) { | 75 if (strike == preserveStrike) { |
76 strike = strike->fPrev; | 76 strike = strike->fPrev; |
77 continue; | 77 continue; |
78 } | 78 } |
79 GrTextStrike* strikeToPurge = strike; | 79 GrTextStrike* strikeToPurge = strike; |
80 strike = strikeToPurge->fPrev; | 80 strike = strikeToPurge->fPrev; |
81 if (purge) { | 81 if (purge) { |
82 // keep purging if we won't free up any atlases with this strike. | 82 // keep purging if we won't free up any atlases with this strike. |
83 purge = (NULL == strikeToPurge->fAtlas); | 83 purge = (NULL == strikeToPurge->fAtlas); |
84 int index = fCache.slowFindIndex(strikeToPurge); | 84 int index = fCache.slowFindIndex(strikeToPurge); |
85 GrAssert(index >= 0); | 85 SkASSERT(index >= 0); |
86 fCache.removeAt(index, strikeToPurge->fFontScalerKey->getHash()); | 86 fCache.removeAt(index, strikeToPurge->fFontScalerKey->getHash()); |
87 this->detachStrikeFromList(strikeToPurge); | 87 this->detachStrikeFromList(strikeToPurge); |
88 delete strikeToPurge; | 88 delete strikeToPurge; |
89 } | 89 } |
90 } | 90 } |
91 #if FONT_CACHE_STATS | 91 #if FONT_CACHE_STATS |
92 ++g_PurgeCount; | 92 ++g_PurgeCount; |
93 #endif | 93 #endif |
94 } | 94 } |
95 | 95 |
96 void GrFontCache::freeAtlasExceptFor(GrTextStrike* preserveStrike) { | 96 void GrFontCache::freeAtlasExceptFor(GrTextStrike* preserveStrike) { |
97 GrTextStrike* strike = fTail; | 97 GrTextStrike* strike = fTail; |
98 while (strike) { | 98 while (strike) { |
99 if (strike == preserveStrike) { | 99 if (strike == preserveStrike) { |
100 strike = strike->fPrev; | 100 strike = strike->fPrev; |
101 continue; | 101 continue; |
102 } | 102 } |
103 GrTextStrike* strikeToPurge = strike; | 103 GrTextStrike* strikeToPurge = strike; |
104 strike = strikeToPurge->fPrev; | 104 strike = strikeToPurge->fPrev; |
105 if (strikeToPurge->removeUnusedAtlases()) { | 105 if (strikeToPurge->removeUnusedAtlases()) { |
106 if (NULL == strikeToPurge->fAtlas) { | 106 if (NULL == strikeToPurge->fAtlas) { |
107 int index = fCache.slowFindIndex(strikeToPurge); | 107 int index = fCache.slowFindIndex(strikeToPurge); |
108 GrAssert(index >= 0); | 108 SkASSERT(index >= 0); |
109 fCache.removeAt(index, strikeToPurge->fFontScalerKey->getHash())
; | 109 fCache.removeAt(index, strikeToPurge->fFontScalerKey->getHash())
; |
110 this->detachStrikeFromList(strikeToPurge); | 110 this->detachStrikeFromList(strikeToPurge); |
111 delete strikeToPurge; | 111 delete strikeToPurge; |
112 } | 112 } |
113 break; | 113 break; |
114 } | 114 } |
115 } | 115 } |
116 } | 116 } |
117 | 117 |
118 #if GR_DEBUG | 118 #if GR_DEBUG |
119 void GrFontCache::validate() const { | 119 void GrFontCache::validate() const { |
120 int count = fCache.count(); | 120 int count = fCache.count(); |
121 if (0 == count) { | 121 if (0 == count) { |
122 GrAssert(!fHead); | 122 SkASSERT(!fHead); |
123 GrAssert(!fTail); | 123 SkASSERT(!fTail); |
124 } else if (1 == count) { | 124 } else if (1 == count) { |
125 GrAssert(fHead == fTail); | 125 SkASSERT(fHead == fTail); |
126 } else { | 126 } else { |
127 GrAssert(fHead != fTail); | 127 SkASSERT(fHead != fTail); |
128 } | 128 } |
129 | 129 |
130 int count2 = 0; | 130 int count2 = 0; |
131 const GrTextStrike* strike = fHead; | 131 const GrTextStrike* strike = fHead; |
132 while (strike) { | 132 while (strike) { |
133 count2 += 1; | 133 count2 += 1; |
134 strike = strike->fNext; | 134 strike = strike->fNext; |
135 } | 135 } |
136 GrAssert(count == count2); | 136 SkASSERT(count == count2); |
137 | 137 |
138 count2 = 0; | 138 count2 = 0; |
139 strike = fTail; | 139 strike = fTail; |
140 while (strike) { | 140 while (strike) { |
141 count2 += 1; | 141 count2 += 1; |
142 strike = strike->fPrev; | 142 strike = strike->fPrev; |
143 } | 143 } |
144 GrAssert(count == count2); | 144 SkASSERT(count == count2); |
145 } | 145 } |
146 #endif | 146 #endif |
147 | 147 |
148 /////////////////////////////////////////////////////////////////////////////// | 148 /////////////////////////////////////////////////////////////////////////////// |
149 | 149 |
150 #if GR_DEBUG | 150 #if GR_DEBUG |
151 static int gCounter; | 151 static int gCounter; |
152 #endif | 152 #endif |
153 | 153 |
154 /* | 154 /* |
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216 return GrAtlas::RemoveUnusedAtlases(fAtlasMgr, &fAtlas); | 216 return GrAtlas::RemoveUnusedAtlases(fAtlasMgr, &fAtlas); |
217 } | 217 } |
218 | 218 |
219 bool GrTextStrike::getGlyphAtlas(GrGlyph* glyph, GrFontScaler* scaler, | 219 bool GrTextStrike::getGlyphAtlas(GrGlyph* glyph, GrFontScaler* scaler, |
220 GrDrawTarget::DrawToken currentDrawToken) { | 220 GrDrawTarget::DrawToken currentDrawToken) { |
221 #if 0 // testing hack to force us to flush our cache often | 221 #if 0 // testing hack to force us to flush our cache often |
222 static int gCounter; | 222 static int gCounter; |
223 if ((++gCounter % 10) == 0) return false; | 223 if ((++gCounter % 10) == 0) return false; |
224 #endif | 224 #endif |
225 | 225 |
226 GrAssert(glyph); | 226 SkASSERT(glyph); |
227 GrAssert(scaler); | 227 SkASSERT(scaler); |
228 GrAssert(fCache.contains(glyph)); | 228 SkASSERT(fCache.contains(glyph)); |
229 if (glyph->fAtlas) { | 229 if (glyph->fAtlas) { |
230 glyph->fAtlas->setDrawToken(currentDrawToken); | 230 glyph->fAtlas->setDrawToken(currentDrawToken); |
231 return true; | 231 return true; |
232 } | 232 } |
233 | 233 |
234 GrAutoRef ar(scaler); | 234 GrAutoRef ar(scaler); |
235 | 235 |
236 int bytesPerPixel = GrMaskFormatBytesPerPixel(fMaskFormat); | 236 int bytesPerPixel = GrMaskFormatBytesPerPixel(fMaskFormat); |
237 size_t size = glyph->fBounds.area() * bytesPerPixel; | 237 size_t size = glyph->fBounds.area() * bytesPerPixel; |
238 SkAutoSMalloc<1024> storage(size); | 238 SkAutoSMalloc<1024> storage(size); |
239 if (!scaler->getPackedGlyphImage(glyph->fPackedID, glyph->width(), | 239 if (!scaler->getPackedGlyphImage(glyph->fPackedID, glyph->width(), |
240 glyph->height(), | 240 glyph->height(), |
241 glyph->width() * bytesPerPixel, | 241 glyph->width() * bytesPerPixel, |
242 storage.get())) { | 242 storage.get())) { |
243 return false; | 243 return false; |
244 } | 244 } |
245 | 245 |
246 GrAtlas* atlas = fAtlasMgr->addToAtlas(&fAtlas, glyph->width(), | 246 GrAtlas* atlas = fAtlasMgr->addToAtlas(&fAtlas, glyph->width(), |
247 glyph->height(), storage.get(), | 247 glyph->height(), storage.get(), |
248 fMaskFormat, | 248 fMaskFormat, |
249 &glyph->fAtlasLocation); | 249 &glyph->fAtlasLocation); |
250 if (NULL == atlas) { | 250 if (NULL == atlas) { |
251 return false; | 251 return false; |
252 } | 252 } |
253 | 253 |
254 glyph->fAtlas = atlas; | 254 glyph->fAtlas = atlas; |
255 atlas->setDrawToken(currentDrawToken); | 255 atlas->setDrawToken(currentDrawToken); |
256 return true; | 256 return true; |
257 } | 257 } |
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