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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 #ifndef SkJpegInfo_DEFINED | 7 #ifndef SkJpegInfo_DEFINED |
8 #define SkJpegInfo_DEFINED | 8 #define SkJpegInfo_DEFINED |
9 | 9 |
10 #include "SkSize.h" | 10 #include "SkSize.h" |
11 | 11 |
12 class SkData; | 12 class SkData; |
13 | 13 |
14 struct SkJFIFInfo { | 14 struct SkJFIFInfo { |
15 SkISize fSize; | 15 SkISize fSize; |
16 enum Type { | 16 enum Type { |
17 kGrayscale, | 17 kGrayscale, |
18 kYCbCr, | 18 kYCbCr, |
19 } fType; | 19 } fType; |
20 }; | 20 }; |
21 | 21 |
22 /** Returns true iff the data seems to be a valid JFIF JPEG image. | 22 /** Returns true iff the data seems to be a valid JFIF JPEG image. |
23 If so and if info is not nullptr, populate info. | 23 If so and if info is not nullptr, populate info. |
24 | 24 |
25 JPEG/JFIF References: | 25 JPEG/JFIF References: |
26 http://www.w3.org/Graphics/JPEG/itu-t81.pdf | 26 http://www.w3.org/Graphics/JPEG/itu-t81.pdf |
27 http://www.w3.org/Graphics/JPEG/jfif3.pdf | 27 http://www.w3.org/Graphics/JPEG/jfif3.pdf |
28 */ | 28 */ |
29 bool SkIsJFIF(const SkData* skdata, SkJFIFInfo* info); | 29 bool SkIsJFIF(const SkData* skdata, SkJFIFInfo* info); |
30 | 30 |
31 #endif // SkJpegInfo_DEFINED | 31 #endif // SkJpegInfo_DEFINED |
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