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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 SkBitmapRegionDecoder_DEFINED | 8 #ifndef SkBitmapRegionDecoder_DEFINED |
9 #define SkBitmapRegionDecoder_DEFINED | 9 #define SkBitmapRegionDecoder_DEFINED |
10 | 10 |
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49 * New implementations should return NULL if they do not s
upport | 49 * New implementations should return NULL if they do not s
upport |
50 * decoding to this color type. | 50 * decoding to this color type. |
51 * The old kOriginal_Strategy will decode to a default col
or type | 51 * The old kOriginal_Strategy will decode to a default col
or type |
52 * if this color type is unsupported. | 52 * if this color type is unsupported. |
53 * @return Pointer to a bitmap of the decoded region on success, N
ULL on | 53 * @return Pointer to a bitmap of the decoded region on success, N
ULL on |
54 * failure. | 54 * failure. |
55 */ | 55 */ |
56 virtual SkBitmap* decodeRegion(int start_x, int start_y, int width, | 56 virtual SkBitmap* decodeRegion(int start_x, int start_y, int width, |
57 int height, int sampleSize, | 57 int height, int sampleSize, |
58 SkColorType colorType) = 0; | 58 SkColorType colorType) = 0; |
| 59 /* |
| 60 * @param Requested destination color type |
| 61 * @return true if we support the requested color type and false otherwise |
| 62 */ |
| 63 virtual bool conversionSupported(SkColorType colorType) = 0; |
59 | 64 |
60 int width() const { return fWidth; } | 65 int width() const { return fWidth; } |
61 int height() const { return fHeight; } | 66 int height() const { return fHeight; } |
62 | 67 |
63 virtual ~SkBitmapRegionDecoderInterface() {} | 68 virtual ~SkBitmapRegionDecoderInterface() {} |
64 | 69 |
65 protected: | 70 protected: |
66 | 71 |
67 SkBitmapRegionDecoderInterface(int width, int height) | 72 SkBitmapRegionDecoderInterface(int width, int height) |
68 : fWidth(width) | 73 : fWidth(width) |
69 , fHeight(height) | 74 , fHeight(height) |
70 {} | 75 {} |
71 | 76 |
72 private: | 77 private: |
73 const int fWidth; | 78 const int fWidth; |
74 const int fHeight; | 79 const int fHeight; |
75 }; | 80 }; |
76 | 81 |
77 #endif | 82 #endif |
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