| OLD | NEW |
| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #include "media/base/simd/convert_rgb_to_yuv.h" | 5 #include "media/base/simd/convert_rgb_to_yuv.h" |
| 6 | 6 |
| 7 namespace media { | 7 namespace media { |
| 8 | 8 |
| 9 static int clip_byte(int x) { | 9 static int clip_byte(int x) { |
| 10 if (x > 255) | 10 if (x > 255) |
| 11 return 255; | 11 return 255; |
| 12 else if (x < 0) | 12 else if (x < 0) |
| 13 return 0; | 13 return 0; |
| 14 else | 14 else |
| 15 return x; | 15 return x; |
| 16 } | 16 } |
| 17 | 17 |
| 18 void ConvertRGB32ToYUV_C(const uint8* rgbframe, | 18 void ConvertRGB32ToYUV_C(const uint8_t* rgbframe, |
| 19 uint8* yplane, | 19 uint8_t* yplane, |
| 20 uint8* uplane, | 20 uint8_t* uplane, |
| 21 uint8* vplane, | 21 uint8_t* vplane, |
| 22 int width, | 22 int width, |
| 23 int height, | 23 int height, |
| 24 int rgbstride, | 24 int rgbstride, |
| 25 int ystride, | 25 int ystride, |
| 26 int uvstride) { | 26 int uvstride) { |
| 27 #if defined(OS_ANDROID) | 27 #if defined(OS_ANDROID) |
| 28 const int r = 0; | 28 const int r = 0; |
| 29 const int g = 1; | 29 const int g = 1; |
| 30 const int b = 2; | 30 const int b = 2; |
| 31 #else | 31 #else |
| 32 const int r = 2; | 32 const int r = 2; |
| 33 const int g = 1; | 33 const int g = 1; |
| 34 const int b = 0; | 34 const int b = 0; |
| 35 #endif | 35 #endif |
| 36 | 36 |
| 37 for (int i = 0; i < height; ++i) { | 37 for (int i = 0; i < height; ++i) { |
| 38 for (int j = 0; j < width; ++j) { | 38 for (int j = 0; j < width; ++j) { |
| 39 // Since the input pixel format is RGB32, there are 4 bytes per pixel. | 39 // Since the input pixel format is RGB32, there are 4 bytes per pixel. |
| 40 const uint8* pixel = rgbframe + 4 * j; | 40 const uint8_t* pixel = rgbframe + 4 * j; |
| 41 yplane[j] = clip_byte(((pixel[r] * 66 + pixel[g] * 129 + | 41 yplane[j] = clip_byte(((pixel[r] * 66 + pixel[g] * 129 + |
| 42 pixel[b] * 25 + 128) >> 8) + 16); | 42 pixel[b] * 25 + 128) >> 8) + 16); |
| 43 if (i % 2 == 0 && j % 2 == 0) { | 43 if (i % 2 == 0 && j % 2 == 0) { |
| 44 uplane[j / 2] = clip_byte(((pixel[r] * -38 + pixel[g] * -74 + | 44 uplane[j / 2] = clip_byte(((pixel[r] * -38 + pixel[g] * -74 + |
| 45 pixel[b] * 112 + 128) >> 8) + 128); | 45 pixel[b] * 112 + 128) >> 8) + 128); |
| 46 vplane[j / 2] = clip_byte(((pixel[r] * 112 + pixel[g] * -94 + | 46 vplane[j / 2] = clip_byte(((pixel[r] * 112 + pixel[g] * -94 + |
| 47 pixel[b] * -18 + 128) >> 8) + 128); | 47 pixel[b] * -18 + 128) >> 8) + 128); |
| 48 } | 48 } |
| 49 } | 49 } |
| 50 rgbframe += rgbstride; | 50 rgbframe += rgbstride; |
| 51 yplane += ystride; | 51 yplane += ystride; |
| 52 if (i % 2 == 0) { | 52 if (i % 2 == 0) { |
| 53 uplane += uvstride; | 53 uplane += uvstride; |
| 54 vplane += uvstride; | 54 vplane += uvstride; |
| 55 } | 55 } |
| 56 } | 56 } |
| 57 } | 57 } |
| 58 | 58 |
| 59 void ConvertRGB24ToYUV_C(const uint8* rgbframe, | 59 void ConvertRGB24ToYUV_C(const uint8_t* rgbframe, |
| 60 uint8* yplane, | 60 uint8_t* yplane, |
| 61 uint8* uplane, | 61 uint8_t* uplane, |
| 62 uint8* vplane, | 62 uint8_t* vplane, |
| 63 int width, | 63 int width, |
| 64 int height, | 64 int height, |
| 65 int rgbstride, | 65 int rgbstride, |
| 66 int ystride, | 66 int ystride, |
| 67 int uvstride) { | 67 int uvstride) { |
| 68 for (int i = 0; i < height; ++i) { | 68 for (int i = 0; i < height; ++i) { |
| 69 for (int j = 0; j < width; ++j) { | 69 for (int j = 0; j < width; ++j) { |
| 70 // Since the input pixel format is RGB24, there are 3 bytes per pixel. | 70 // Since the input pixel format is RGB24, there are 3 bytes per pixel. |
| 71 const uint8* pixel = rgbframe + 3 * j; | 71 const uint8_t* pixel = rgbframe + 3 * j; |
| 72 yplane[j] = clip_byte(((pixel[2] * 66 + pixel[1] * 129 + | 72 yplane[j] = clip_byte(((pixel[2] * 66 + pixel[1] * 129 + |
| 73 pixel[0] * 25 + 128) >> 8) + 16); | 73 pixel[0] * 25 + 128) >> 8) + 16); |
| 74 if (i % 2 == 0 && j % 2 == 0) { | 74 if (i % 2 == 0 && j % 2 == 0) { |
| 75 uplane[j / 2] = clip_byte(((pixel[2] * -38 + pixel[1] * -74 + | 75 uplane[j / 2] = clip_byte(((pixel[2] * -38 + pixel[1] * -74 + |
| 76 pixel[0] * 112 + 128) >> 8) + 128); | 76 pixel[0] * 112 + 128) >> 8) + 128); |
| 77 vplane[j / 2] = clip_byte(((pixel[2] * 112 + pixel[1] * -94 + | 77 vplane[j / 2] = clip_byte(((pixel[2] * 112 + pixel[1] * -94 + |
| 78 pixel[0] * -18 + 128) >> 8) + 128); | 78 pixel[0] * -18 + 128) >> 8) + 128); |
| 79 } | 79 } |
| 80 } | 80 } |
| 81 | 81 |
| 82 rgbframe += rgbstride; | 82 rgbframe += rgbstride; |
| 83 yplane += ystride; | 83 yplane += ystride; |
| 84 if (i % 2 == 0) { | 84 if (i % 2 == 0) { |
| 85 uplane += uvstride; | 85 uplane += uvstride; |
| 86 vplane += uvstride; | 86 vplane += uvstride; |
| 87 } | 87 } |
| 88 } | 88 } |
| 89 } | 89 } |
| 90 | 90 |
| 91 } // namespace media | 91 } // namespace media |
| OLD | NEW |