| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 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 "SkCachingPixelRef.h" | 8 #include "SkCachingPixelRef.h" |
| 9 #include "SkBitmapCache.h" | 9 #include "SkBitmapCache.h" |
| 10 #include "SkRect.h" | 10 #include "SkRect.h" |
| 11 | 11 |
| 12 bool SkCachingPixelRef::Install(SkImageGenerator* generator, | 12 bool SkCachingPixelRef::Install(SkImageGenerator* generator, |
| 13 SkBitmap* dst) { | 13 SkBitmap* dst) { |
| 14 SkASSERT(dst != NULL); | 14 SkASSERT(dst != nullptr); |
| 15 if (NULL == generator) { | 15 if (nullptr == generator) { |
| 16 return false; | 16 return false; |
| 17 } | 17 } |
| 18 const SkImageInfo info = generator->getInfo(); | 18 const SkImageInfo info = generator->getInfo(); |
| 19 if (!dst->setInfo(info)) { | 19 if (!dst->setInfo(info)) { |
| 20 delete generator; | 20 delete generator; |
| 21 return false; | 21 return false; |
| 22 } | 22 } |
| 23 SkAutoTUnref<SkCachingPixelRef> ref(new SkCachingPixelRef(info, generator, d
st->rowBytes())); | 23 SkAutoTUnref<SkCachingPixelRef> ref(new SkCachingPixelRef(info, generator, d
st->rowBytes())); |
| 24 dst->setPixelRef(ref); | 24 dst->setPixelRef(ref); |
| 25 return true; | 25 return true; |
| 26 } | 26 } |
| 27 | 27 |
| 28 SkCachingPixelRef::SkCachingPixelRef(const SkImageInfo& info, | 28 SkCachingPixelRef::SkCachingPixelRef(const SkImageInfo& info, |
| 29 SkImageGenerator* generator, | 29 SkImageGenerator* generator, |
| 30 size_t rowBytes) | 30 size_t rowBytes) |
| 31 : INHERITED(info) | 31 : INHERITED(info) |
| 32 , fImageGenerator(generator) | 32 , fImageGenerator(generator) |
| 33 , fErrorInDecoding(false) | 33 , fErrorInDecoding(false) |
| 34 , fRowBytes(rowBytes) { | 34 , fRowBytes(rowBytes) { |
| 35 SkASSERT(fImageGenerator != NULL); | 35 SkASSERT(fImageGenerator != nullptr); |
| 36 } | 36 } |
| 37 SkCachingPixelRef::~SkCachingPixelRef() { | 37 SkCachingPixelRef::~SkCachingPixelRef() { |
| 38 delete fImageGenerator; | 38 delete fImageGenerator; |
| 39 // Assert always unlock before unref. | 39 // Assert always unlock before unref. |
| 40 } | 40 } |
| 41 | 41 |
| 42 bool SkCachingPixelRef::onNewLockPixels(LockRec* rec) { | 42 bool SkCachingPixelRef::onNewLockPixels(LockRec* rec) { |
| 43 if (fErrorInDecoding) { | 43 if (fErrorInDecoding) { |
| 44 return false; // don't try again. | 44 return false; // don't try again. |
| 45 } | 45 } |
| 46 | 46 |
| 47 const SkImageInfo& info = this->info(); | 47 const SkImageInfo& info = this->info(); |
| 48 if (!SkBitmapCache::Find( | 48 if (!SkBitmapCache::Find( |
| 49 this->getGenerationID(), info.bounds(), &fLockedBitmap)) { | 49 this->getGenerationID(), info.bounds(), &fLockedBitmap)) { |
| 50 // Cache has been purged, must re-decode. | 50 // Cache has been purged, must re-decode. |
| 51 if (!fLockedBitmap.tryAllocPixels(info, fRowBytes)) { | 51 if (!fLockedBitmap.tryAllocPixels(info, fRowBytes)) { |
| 52 fErrorInDecoding = true; | 52 fErrorInDecoding = true; |
| 53 return false; | 53 return false; |
| 54 } | 54 } |
| 55 if (!fImageGenerator->getPixels(info, fLockedBitmap.getPixels(), fRowByt
es)) { | 55 if (!fImageGenerator->getPixels(info, fLockedBitmap.getPixels(), fRowByt
es)) { |
| 56 fErrorInDecoding = true; | 56 fErrorInDecoding = true; |
| 57 return false; | 57 return false; |
| 58 } | 58 } |
| 59 fLockedBitmap.setImmutable(); | 59 fLockedBitmap.setImmutable(); |
| 60 SkBitmapCache::Add(this, info.bounds(), fLockedBitmap); | 60 SkBitmapCache::Add(this, info.bounds(), fLockedBitmap); |
| 61 } | 61 } |
| 62 | 62 |
| 63 // Now bitmap should contain a concrete PixelRef of the decoded image. | 63 // Now bitmap should contain a concrete PixelRef of the decoded image. |
| 64 void* pixels = fLockedBitmap.getPixels(); | 64 void* pixels = fLockedBitmap.getPixels(); |
| 65 SkASSERT(pixels != NULL); | 65 SkASSERT(pixels != nullptr); |
| 66 rec->fPixels = pixels; | 66 rec->fPixels = pixels; |
| 67 rec->fColorTable = NULL; | 67 rec->fColorTable = nullptr; |
| 68 rec->fRowBytes = fLockedBitmap.rowBytes(); | 68 rec->fRowBytes = fLockedBitmap.rowBytes(); |
| 69 return true; | 69 return true; |
| 70 } | 70 } |
| 71 | 71 |
| 72 void SkCachingPixelRef::onUnlockPixels() { | 72 void SkCachingPixelRef::onUnlockPixels() { |
| 73 fLockedBitmap.reset(); | 73 fLockedBitmap.reset(); |
| 74 } | 74 } |
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