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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 "SkBitmapCache.h" |
8 #include "SkPixelRef.h" | 9 #include "SkPixelRef.h" |
9 #include "SkThread.h" | 10 #include "SkThread.h" |
10 | 11 |
11 #ifdef SK_BUILD_FOR_WIN32 | 12 #ifdef SK_BUILD_FOR_WIN32 |
12 // We don't have SK_BASE_MUTEX_INIT on Windows. | 13 // We don't have SK_BASE_MUTEX_INIT on Windows. |
13 | 14 |
14 // must be a power-of-2. undef to just use 1 mutex | 15 // must be a power-of-2. undef to just use 1 mutex |
15 #define PIXELREF_MUTEX_RING_COUNT 32 | 16 #define PIXELREF_MUTEX_RING_COUNT 32 |
16 static SkBaseMutex gPixelRefMutexRing[PIXELREF_MUTEX_RING_COUNT]; | 17 static SkBaseMutex gPixelRefMutexRing[PIXELREF_MUTEX_RING_COUNT]; |
17 | 18 |
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207 | 208 |
208 void SkPixelRef::addGenIDChangeListener(GenIDChangeListener* listener) { | 209 void SkPixelRef::addGenIDChangeListener(GenIDChangeListener* listener) { |
209 if (NULL == listener || !fUniqueGenerationID) { | 210 if (NULL == listener || !fUniqueGenerationID) { |
210 // No point in tracking this if we're not going to call it. | 211 // No point in tracking this if we're not going to call it. |
211 SkDELETE(listener); | 212 SkDELETE(listener); |
212 return; | 213 return; |
213 } | 214 } |
214 *fGenIDChangeListeners.append() = listener; | 215 *fGenIDChangeListeners.append() = listener; |
215 } | 216 } |
216 | 217 |
| 218 // we need to be called *before* the genID gets changed or zerod |
217 void SkPixelRef::callGenIDChangeListeners() { | 219 void SkPixelRef::callGenIDChangeListeners() { |
218 // We don't invalidate ourselves if we think another SkPixelRef is sharing o
ur genID. | 220 // We don't invalidate ourselves if we think another SkPixelRef is sharing o
ur genID. |
219 if (fUniqueGenerationID) { | 221 if (fUniqueGenerationID) { |
220 for (int i = 0; i < fGenIDChangeListeners.count(); i++) { | 222 for (int i = 0; i < fGenIDChangeListeners.count(); i++) { |
221 fGenIDChangeListeners[i]->onChange(); | 223 fGenIDChangeListeners[i]->onChange(); |
222 } | 224 } |
| 225 |
| 226 // If we can flag the pixelref somehow whenever it was actually added to
the cache, |
| 227 // perhaps it would be nice to only call this notifier in that case. For
now we always |
| 228 // call it, since we don't know if it was cached or not. |
| 229 SkNotifyBitmapGenIDIsStale(fGenerationID); |
223 } | 230 } |
224 // Listeners get at most one shot, so whether these triggered or not, blow t
hem away. | 231 // Listeners get at most one shot, so whether these triggered or not, blow t
hem away. |
225 fGenIDChangeListeners.deleteAll(); | 232 fGenIDChangeListeners.deleteAll(); |
226 } | 233 } |
227 | 234 |
228 void SkPixelRef::notifyPixelsChanged() { | 235 void SkPixelRef::notifyPixelsChanged() { |
229 #ifdef SK_DEBUG | 236 #ifdef SK_DEBUG |
230 if (fIsImmutable) { | 237 if (fIsImmutable) { |
231 SkDebugf("========== notifyPixelsChanged called on immutable pixelref"); | 238 SkDebugf("========== notifyPixelsChanged called on immutable pixelref"); |
232 } | 239 } |
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257 | 264 |
258 bool SkPixelRef::onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBy
tes[3], | 265 bool SkPixelRef::onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBy
tes[3], |
259 SkYUVColorSpace* colorSpace) { | 266 SkYUVColorSpace* colorSpace) { |
260 return false; | 267 return false; |
261 } | 268 } |
262 | 269 |
263 size_t SkPixelRef::getAllocatedSizeInBytes() const { | 270 size_t SkPixelRef::getAllocatedSizeInBytes() const { |
264 return 0; | 271 return 0; |
265 } | 272 } |
266 | 273 |
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