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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 "SkDiscardablePixelRef.h" | 8 #include "SkDiscardablePixelRef.h" |
9 #include "SkDiscardableMemory.h" | 9 #include "SkDiscardableMemory.h" |
10 | 10 |
11 SkDiscardablePixelRef::SkDiscardablePixelRef(SkImageGenerator* generator, | 11 SkDiscardablePixelRef::SkDiscardablePixelRef(SkImageGenerator* generator, |
12 const SkImageInfo& info, | 12 const SkImageInfo& info, |
13 size_t size, | 13 size_t size, |
14 size_t rowBytes) | 14 size_t rowBytes, |
| 15 SkDiscardableMemory::Factory* fact) |
15 : fGenerator(generator) | 16 : fGenerator(generator) |
| 17 , fDMFactory(fact) |
16 , fInfo(info) | 18 , fInfo(info) |
17 , fSize(size) | 19 , fSize(size) |
18 , fRowBytes(rowBytes) | 20 , fRowBytes(rowBytes) |
19 , fDiscardableMemory(NULL) { | 21 , fDiscardableMemory(NULL) { |
20 SkASSERT(fGenerator != NULL); | 22 SkASSERT(fGenerator != NULL); |
21 SkASSERT(fSize > 0); | 23 SkASSERT(fSize > 0); |
22 SkASSERT(fRowBytes > 0); | 24 SkASSERT(fRowBytes > 0); |
23 // The SkImageGenerator contract requires fGenerator to always | 25 // The SkImageGenerator contract requires fGenerator to always |
24 // decode the same image on each call to getPixels(). | 26 // decode the same image on each call to getPixels(). |
25 this->setImmutable(); | 27 this->setImmutable(); |
| 28 SkSafeRef(fDMFactory); |
26 } | 29 } |
27 | 30 |
28 SkDiscardablePixelRef::~SkDiscardablePixelRef() { | 31 SkDiscardablePixelRef::~SkDiscardablePixelRef() { |
| 32 SkDELETE(fDiscardableMemory); |
| 33 SkSafeUnref(fDMFactory); |
29 SkDELETE(fGenerator); | 34 SkDELETE(fGenerator); |
30 } | 35 } |
31 | 36 |
32 void* SkDiscardablePixelRef::onLockPixels(SkColorTable**) { | 37 void* SkDiscardablePixelRef::onLockPixels(SkColorTable**) { |
33 if (fDiscardableMemory != NULL) { | 38 if (fDiscardableMemory != NULL) { |
34 if (fDiscardableMemory->lock()) { | 39 if (fDiscardableMemory->lock()) { |
35 return fDiscardableMemory->data(); | 40 return fDiscardableMemory->data(); |
36 } | 41 } |
| 42 SkDELETE(fDiscardableMemory); |
37 fDiscardableMemory = NULL; | 43 fDiscardableMemory = NULL; |
38 } | 44 } |
39 fDiscardableMemory = SkDiscardableMemory::Create(fSize); | 45 if (fDMFactory != NULL) { |
| 46 fDiscardableMemory = fDMFactory->create(fSize); |
| 47 } else { |
| 48 fDiscardableMemory = SkDiscardableMemory::Create(fSize); |
| 49 } |
40 if (NULL == fDiscardableMemory) { | 50 if (NULL == fDiscardableMemory) { |
41 return NULL; // Memory allocation failed. | 51 return NULL; // Memory allocation failed. |
42 } | 52 } |
43 void* pixels = fDiscardableMemory->data(); | 53 void* pixels = fDiscardableMemory->data(); |
44 if (!fGenerator->getPixels(fInfo, pixels, fRowBytes)) { | 54 if (!fGenerator->getPixels(fInfo, pixels, fRowBytes)) { |
45 return NULL; // TODO(halcanary) Find out correct thing to do. | 55 return NULL; // TODO(halcanary) Find out correct thing to do. |
46 } | 56 } |
47 return pixels; | 57 return pixels; |
48 } | 58 } |
49 void SkDiscardablePixelRef::onUnlockPixels() { | 59 void SkDiscardablePixelRef::onUnlockPixels() { |
50 if (fDiscardableMemory != NULL) { | 60 if (fDiscardableMemory != NULL) { |
51 fDiscardableMemory->unlock(); | 61 fDiscardableMemory->unlock(); |
52 } | 62 } |
53 } | 63 } |
54 | 64 |
55 bool SkDiscardablePixelRef::Install(SkImageGenerator* generator, | 65 bool SkDiscardablePixelRef::Install(SkImageGenerator* generator, |
56 SkBitmap* dst) { | 66 SkBitmap* dst, |
| 67 SkDiscardableMemory::Factory* factory) { |
57 SkImageInfo info; | 68 SkImageInfo info; |
58 SkASSERT(generator != NULL); | 69 SkASSERT(generator != NULL); |
59 if ((NULL == generator) | 70 if ((NULL == generator) |
60 || (!generator->getInfo(&info)) | 71 || (!generator->getInfo(&info)) |
61 || (!dst->setConfig(info, 0))) { | 72 || (!dst->setConfig(info, 0)) |
| 73 || (0 == dst->getSize())) { // dst->getSize=0 Probably a bad config |
62 SkDELETE(generator); | 74 SkDELETE(generator); |
63 return false; | 75 return false; |
64 } | 76 } |
65 SkAutoTUnref<SkDiscardablePixelRef> ref(SkNEW_ARGS(SkDiscardablePixelRef, | 77 SkAutoTUnref<SkDiscardablePixelRef> ref(SkNEW_ARGS(SkDiscardablePixelRef, |
66 (generator, info, | 78 (generator, info, |
67 dst->getSize(), | 79 dst->getSize(), |
68 dst->rowBytes()))); | 80 dst->rowBytes(), |
| 81 factory))); |
69 dst->setPixelRef(ref); | 82 dst->setPixelRef(ref); |
70 return true; | 83 return true; |
71 } | 84 } |
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