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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 SkImageGenerator_DEFINED | 8 #ifndef SkImageGenerator_DEFINED |
9 #define SkImageGenerator_DEFINED | 9 #define SkImageGenerator_DEFINED |
10 | 10 |
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28 * SkDELETE() on the generator. Therefore, generator should be | 28 * SkDELETE() on the generator. Therefore, generator should be |
29 * allocated with SkNEW() or SkNEW_ARGS(). | 29 * allocated with SkNEW() or SkNEW_ARGS(). |
30 * | 30 * |
31 * @param destination Upon success, this bitmap will be | 31 * @param destination Upon success, this bitmap will be |
32 * configured and have a pixelref installed. | 32 * configured and have a pixelref installed. |
33 * | 33 * |
34 * @return true iff successful. | 34 * @return true iff successful. |
35 */ | 35 */ |
36 SK_API bool SkInstallDiscardablePixelRef(SkImageGenerator*, SkBitmap* destinatio
n); | 36 SK_API bool SkInstallDiscardablePixelRef(SkImageGenerator*, SkBitmap* destinatio
n); |
37 | 37 |
38 /** | |
39 * Purges all unlocked discardable memory in Skia's global | |
40 * discardable memory pool. | |
41 */ | |
42 SK_API void SkPurgeGlobalDiscardableMemoryPool(); | |
43 | |
44 | 38 |
45 /** | 39 /** |
46 * An interface that allows a purgeable PixelRef (such as a | 40 * An interface that allows a purgeable PixelRef (such as a |
47 * SkDiscardablePixelRef) to decode and re-decode an image as needed. | 41 * SkDiscardablePixelRef) to decode and re-decode an image as needed. |
48 */ | 42 */ |
49 class SK_API SkImageGenerator { | 43 class SK_API SkImageGenerator { |
50 public: | 44 public: |
51 /** | 45 /** |
52 * The PixelRef which takes ownership of this SkImageGenerator | 46 * The PixelRef which takes ownership of this SkImageGenerator |
53 * will call the image generator's destructor. | 47 * will call the image generator's destructor. |
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132 protected: | 126 protected: |
133 virtual SkData* onRefEncodedData(); | 127 virtual SkData* onRefEncodedData(); |
134 virtual bool onGetInfo(SkImageInfo* info); | 128 virtual bool onGetInfo(SkImageInfo* info); |
135 virtual bool onGetPixels(const SkImageInfo& info, | 129 virtual bool onGetPixels(const SkImageInfo& info, |
136 void* pixels, size_t rowBytes, | 130 void* pixels, size_t rowBytes, |
137 SkPMColor ctable[], int* ctableCount); | 131 SkPMColor ctable[], int* ctableCount); |
138 virtual bool onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBy
tes[3]); | 132 virtual bool onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBy
tes[3]); |
139 }; | 133 }; |
140 | 134 |
141 #endif // SkImageGenerator_DEFINED | 135 #endif // SkImageGenerator_DEFINED |
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