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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef UI_GFX_CHROMEOS_CODEC_JPEG_CODEC_ROBUST_SLOW_H_ | 5 #ifndef UI_GFX_CODEC_CHROMEOS_JPEG_CODEC_ROBUST_SLOW_H_ |
6 #define UI_GFX_CHROMEOS_CODEC_JPEG_CODEC_ROBUST_SLOW_H_ | 6 #define UI_GFX_CODEC_CHROMEOS_JPEG_CODEC_ROBUST_SLOW_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "ui/gfx/gfx_export.h" | 11 #include "ui/gfx/codec/codec_export.h" |
12 | 12 |
13 class SkBitmap; | 13 class SkBitmap; |
14 | 14 |
15 namespace gfx { | 15 namespace gfx { |
16 | 16 |
17 // Interface for encoding/decoding JPEG data. This is a wrapper around libjpeg, | 17 // Interface for encoding/decoding JPEG data. This is a wrapper around libjpeg, |
18 // which has an inconvenient interface for callers. This is only used for | 18 // which has an inconvenient interface for callers. This is only used for |
19 // servicing ChromeUtilityMsg_RobustJPEGDecodeImage and is currently unique | 19 // servicing ChromeUtilityMsg_RobustJPEGDecodeImage and is currently unique |
20 // to Chrome OS. | 20 // to Chrome OS. |
21 class GFX_EXPORT JPEGCodecRobustSlow { | 21 class CODEC_EXPORT JPEGCodecRobustSlow { |
22 public: | 22 public: |
23 enum ColorFormat { | 23 enum ColorFormat { |
24 // 3 bytes per pixel (packed), in RGB order regardless of endianness. | 24 // 3 bytes per pixel (packed), in RGB order regardless of endianness. |
25 // This is the native JPEG format. | 25 // This is the native JPEG format. |
26 FORMAT_RGB, | 26 FORMAT_RGB, |
27 | 27 |
28 // 4 bytes per pixel, in RGBA order in mem regardless of endianness. | 28 // 4 bytes per pixel, in RGBA order in mem regardless of endianness. |
29 FORMAT_RGBA, | 29 FORMAT_RGBA, |
30 | 30 |
31 // 4 bytes per pixel, in BGRA order in mem regardless of endianness. | 31 // 4 bytes per pixel, in BGRA order in mem regardless of endianness. |
32 // This is the default Windows DIB order. | 32 // This is the default Windows DIB order. |
33 FORMAT_BGRA, | 33 FORMAT_BGRA, |
34 | 34 |
35 // 4 bytes per pixel, it can be either RGBA or BGRA. It depends on the bit | 35 // 4 bytes per pixel, it can be either RGBA or BGRA. It depends on the bit |
36 // order in kARGB_8888_Config skia bitmap. | 36 // order in kARGB_8888_Config skia bitmap. |
37 FORMAT_SkBitmap | 37 FORMAT_SkBitmap |
38 }; | 38 }; |
39 | 39 |
40 // Decodes the JPEG data contained in input of length input_size. The | 40 // Decodes the JPEG data contained in input of length input_size. The |
41 // decoded data will be placed in *output with the dimensions in *w and *h | 41 // decoded data will be placed in *output with the dimensions in *w and *h |
42 // on success (returns true). This data will be written in the'format' | 42 // on success (returns true). This data will be written in the'format' |
43 // format. On failure, the values of these output variables is undefined. | 43 // format. On failure, the values of these output variables is undefined. |
44 static bool Decode(const unsigned char* input, size_t input_size, | 44 static bool Decode(const unsigned char* input, |
45 ColorFormat format, std::vector<unsigned char>* output, | 45 size_t input_size, |
46 int* w, int* h); | 46 ColorFormat format, |
| 47 std::vector<unsigned char>* output, |
| 48 int* w, |
| 49 int* h); |
47 | 50 |
48 // Decodes the JPEG data contained in input of length input_size. If | 51 // Decodes the JPEG data contained in input of length input_size. If |
49 // successful, a SkBitmap is created and returned. It is up to the caller | 52 // successful, a SkBitmap is created and returned. It is up to the caller |
50 // to delete the returned bitmap. | 53 // to delete the returned bitmap. |
51 static SkBitmap* Decode(const unsigned char* input, size_t input_size); | 54 static SkBitmap* Decode(const unsigned char* input, size_t input_size); |
52 }; | 55 }; |
53 | 56 |
54 } // namespace gfx | 57 } // namespace gfx |
55 | 58 |
56 #endif // UI_GFX_CHROMEOS_CODEC_JPEG_CODEC_ROBUST_SLOW_H_ | 59 #endif // UI_GFX_CODEC_CHROMEOS_JPEG_CODEC_ROBUST_SLOW_H_ |
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