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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 #ifndef SkDiscardablePixelRef_DEFINED | 8 #ifndef SkDiscardablePixelRef_DEFINED |
9 #define SkDiscardablePixelRef_DEFINED | 9 #define SkDiscardablePixelRef_DEFINED |
10 | 10 |
11 #include "SkDiscardableMemory.h" | 11 #include "SkDiscardableMemory.h" |
12 #include "SkImageGenerator.h" | 12 #include "SkImageGenerator.h" |
13 #include "SkImageInfo.h" | 13 #include "SkImageInfo.h" |
14 #include "SkPixelRef.h" | 14 #include "SkPixelRef.h" |
15 | 15 |
16 /** | 16 /** |
17 * A PixelRef backed by SkDiscardableMemory, with the ability to | 17 * A PixelRef backed by SkDiscardableMemory, with the ability to |
18 * re-generate the pixels (via a SkImageGenerator) if the DM is | 18 * re-generate the pixels (via a SkImageGenerator) if the DM is |
19 * purged. | 19 * purged. |
20 */ | 20 */ |
21 class SkDiscardablePixelRef : public SkPixelRef { | 21 class SkDiscardablePixelRef : public SkPixelRef { |
22 public: | 22 public: |
23 SK_DECLARE_INST_COUNT(SkDiscardablePixelRef) | 23 SK_DECLARE_INST_COUNT(SkDiscardablePixelRef) |
24 | 24 |
25 protected: | 25 protected: |
26 ~SkDiscardablePixelRef(); | 26 ~SkDiscardablePixelRef(); |
27 | 27 |
28 bool onNewLockPixels(LockRec*) SK_OVERRIDE; | 28 bool onNewLockPixels(LockRec*) override; |
29 void onUnlockPixels() SK_OVERRIDE; | 29 void onUnlockPixels() override; |
30 bool onLockPixelsAreWritable() const SK_OVERRIDE { return false; } | 30 bool onLockPixelsAreWritable() const override { return false; } |
31 | 31 |
32 SkData* onRefEncodedData() SK_OVERRIDE { | 32 SkData* onRefEncodedData() override { |
33 return fGenerator->refEncodedData(); | 33 return fGenerator->refEncodedData(); |
34 } | 34 } |
35 | 35 |
36 private: | 36 private: |
37 SkImageGenerator* const fGenerator; | 37 SkImageGenerator* const fGenerator; |
38 SkDiscardableMemory::Factory* const fDMFactory; | 38 SkDiscardableMemory::Factory* const fDMFactory; |
39 const size_t fRowBytes; | 39 const size_t fRowBytes; |
40 // These const members should not change over the life of the | 40 // These const members should not change over the life of the |
41 // PixelRef, since the SkBitmap doesn't expect them to change. | 41 // PixelRef, since the SkBitmap doesn't expect them to change. |
42 | 42 |
43 SkDiscardableMemory* fDiscardableMemory; | 43 SkDiscardableMemory* fDiscardableMemory; |
44 bool fDiscardableMemoryIsLocked; | 44 bool fDiscardableMemoryIsLocked; |
45 SkAutoTUnref<SkColorTable> fCTable; | 45 SkAutoTUnref<SkColorTable> fCTable; |
46 | 46 |
47 /* Takes ownership of SkImageGenerator. */ | 47 /* Takes ownership of SkImageGenerator. */ |
48 SkDiscardablePixelRef(const SkImageInfo&, SkImageGenerator*, | 48 SkDiscardablePixelRef(const SkImageInfo&, SkImageGenerator*, |
49 size_t rowBytes, | 49 size_t rowBytes, |
50 SkDiscardableMemory::Factory* factory); | 50 SkDiscardableMemory::Factory* factory); |
51 | 51 |
52 virtual bool onGetYUV8Planes(SkISize sizes[3], | 52 virtual bool onGetYUV8Planes(SkISize sizes[3], |
53 void* planes[3], | 53 void* planes[3], |
54 size_t rowBytes[3], | 54 size_t rowBytes[3], |
55 SkYUVColorSpace* colorSpace) SK_OVERRIDE { | 55 SkYUVColorSpace* colorSpace) override { |
56 // If the image was already decoded with lockPixels(), favor not | 56 // If the image was already decoded with lockPixels(), favor not |
57 // re-decoding to YUV8 planes. | 57 // re-decoding to YUV8 planes. |
58 if (fDiscardableMemory) { | 58 if (fDiscardableMemory) { |
59 return false; | 59 return false; |
60 } | 60 } |
61 return fGenerator->getYUV8Planes(sizes, planes, rowBytes, colorSpace); | 61 return fGenerator->getYUV8Planes(sizes, planes, rowBytes, colorSpace); |
62 } | 62 } |
63 | 63 |
64 friend bool SkInstallDiscardablePixelRef(SkImageGenerator*, SkBitmap*, | 64 friend bool SkInstallDiscardablePixelRef(SkImageGenerator*, SkBitmap*, |
65 SkDiscardableMemory::Factory*); | 65 SkDiscardableMemory::Factory*); |
66 | 66 |
67 typedef SkPixelRef INHERITED; | 67 typedef SkPixelRef INHERITED; |
68 }; | 68 }; |
69 | 69 |
70 #endif // SkDiscardablePixelRef_DEFINED | 70 #endif // SkDiscardablePixelRef_DEFINED |
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