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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 MEDIA_BASE_SIMD_CONVERT_RGB_TO_YUV_SSSE3_H_ | 5 #ifndef MEDIA_BASE_SIMD_CONVERT_RGB_TO_YUV_SSSE3_H_ |
6 #define MEDIA_BASE_SIMD_CONVERT_RGB_TO_YUV_SSSE3_H_ | 6 #define MEDIA_BASE_SIMD_CONVERT_RGB_TO_YUV_SSSE3_H_ |
7 | 7 |
| 8 #include <stddef.h> |
| 9 #include <stdint.h> |
| 10 |
8 #ifdef __cplusplus | 11 #ifdef __cplusplus |
9 extern "C" { | 12 extern "C" { |
10 #endif | 13 #endif |
11 | 14 |
12 // The header file for ASM functions that convert a row of RGB pixels with SSSE3 | 15 // The header file for ASM functions that convert a row of RGB pixels with SSSE3 |
13 // instructions so we can call them from C++ code. These functions are | 16 // instructions so we can call them from C++ code. These functions are |
14 // implemented in "convert_rgb_to_yuv_ssse3.asm". | 17 // implemented in "convert_rgb_to_yuv_ssse3.asm". |
15 | 18 |
16 // We use ptrdiff_t instead of int for yasm routine parameters to portably | 19 // We use ptrdiff_t instead of int for yasm routine parameters to portably |
17 // sign-extend int. On Win64, MSVC does not sign-extend the value in the stack | 20 // sign-extend int. On Win64, MSVC does not sign-extend the value in the stack |
18 // home of int function parameters, and yasm routines are unaware of this lack | 21 // home of int function parameters, and yasm routines are unaware of this lack |
19 // of extension and fault. ptrdiff_t is portably sign-extended and fixes this | 22 // of extension and fault. ptrdiff_t is portably sign-extended and fixes this |
20 // issue on at least Win64. | 23 // issue on at least Win64. |
21 | 24 |
22 // Convert a row of 24-bit RGB pixels to YV12 pixels. | 25 // Convert a row of 24-bit RGB pixels to YV12 pixels. |
23 void ConvertRGBToYUVRow_SSSE3(const uint8* rgb, | 26 void ConvertRGBToYUVRow_SSSE3(const uint8_t* rgb, |
24 uint8* y, | 27 uint8_t* y, |
25 uint8* u, | 28 uint8_t* u, |
26 uint8* v, | 29 uint8_t* v, |
27 ptrdiff_t width); | 30 ptrdiff_t width); |
28 | 31 |
29 // Convert a row of 32-bit RGB pixels to YV12 pixels. | 32 // Convert a row of 32-bit RGB pixels to YV12 pixels. |
30 void ConvertARGBToYUVRow_SSSE3(const uint8* argb, | 33 void ConvertARGBToYUVRow_SSSE3(const uint8_t* argb, |
31 uint8* y, | 34 uint8_t* y, |
32 uint8* u, | 35 uint8_t* u, |
33 uint8* v, | 36 uint8_t* v, |
34 ptrdiff_t width); | 37 ptrdiff_t width); |
35 | 38 |
36 #ifdef __cplusplus | 39 #ifdef __cplusplus |
37 } | 40 } |
38 #endif | 41 #endif |
39 | 42 |
40 #endif // MEDIA_BASE_SIMD_CONVERT_RGB_TO_YUV_SSSE3_H_ | 43 #endif // MEDIA_BASE_SIMD_CONVERT_RGB_TO_YUV_SSSE3_H_ |
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