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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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109 * rowBytes are both fully defined and non NULL/non 0 or they are both NULL
or have NULL or 0 | 109 * rowBytes are both fully defined and non NULL/non 0 or they are both NULL
or have NULL or 0 |
110 * entries only. Having only partial planes/rowBytes information is not sup
ported. | 110 * entries only. Having only partial planes/rowBytes information is not sup
ported. |
111 * | 111 * |
112 * If all planes and rowBytes entries are non NULL or non 0, then it should
copy the | 112 * If all planes and rowBytes entries are non NULL or non 0, then it should
copy the |
113 * associated YUV data into those planes of memory supplied by the caller.
It should validate | 113 * associated YUV data into those planes of memory supplied by the caller.
It should validate |
114 * that the sizes match what it expected. If the sizes do not match, it sho
uld return false. | 114 * that the sizes match what it expected. If the sizes do not match, it sho
uld return false. |
115 */ | 115 */ |
116 bool getYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3], | 116 bool getYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3], |
117 SkYUVColorSpace* colorSpace); | 117 SkYUVColorSpace* colorSpace); |
118 | 118 |
| 119 /** |
| 120 * If the default image decoder system can interpret the specified (encoded
) data, then |
| 121 * this returns a new ImageGenerator for it. Otherwise this returns NULL. E
ither way |
| 122 * the caller is still responsible for managing their ownership of the data
. |
| 123 */ |
| 124 static SkImageGenerator* NewFromData(SkData*); |
| 125 |
119 protected: | 126 protected: |
120 virtual SkData* onRefEncodedData(); | 127 virtual SkData* onRefEncodedData(); |
121 virtual bool onGetInfo(SkImageInfo* info); | 128 virtual bool onGetInfo(SkImageInfo* info); |
122 virtual bool onGetPixels(const SkImageInfo& info, | 129 virtual bool onGetPixels(const SkImageInfo& info, |
123 void* pixels, size_t rowBytes, | 130 void* pixels, size_t rowBytes, |
124 SkPMColor ctable[], int* ctableCount); | 131 SkPMColor ctable[], int* ctableCount); |
125 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]); |
126 virtual bool onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBy
tes[3], | 133 virtual bool onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBy
tes[3], |
127 SkYUVColorSpace* colorSpace); | 134 SkYUVColorSpace* colorSpace); |
128 }; | 135 }; |
129 | 136 |
130 #endif // SkImageGenerator_DEFINED | 137 #endif // SkImageGenerator_DEFINED |
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