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1 /* | 1 /* |
2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. | 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 | 11 |
12 #include "vpx_scale/vpxscale.h" | 12 #include "vpx_scale/vpx_scale.h" |
13 #include "vpx_mem/vpx_mem.h" | 13 #include "vpx_mem/vpx_mem.h" |
14 /**************************************************************************** | 14 /**************************************************************************** |
15 * Imports | 15 * Imports |
16 ****************************************************************************/ | 16 ****************************************************************************/ |
17 | 17 |
18 /**************************************************************************** | 18 /**************************************************************************** |
19 * | 19 * |
20 * | 20 * |
21 * INPUTS : const unsigned char *source : Pointer to source data. | 21 * INPUTS : const unsigned char *source : Pointer to source data. |
22 * unsigned int source_width : Stride of source. | 22 * unsigned int source_width : Stride of source. |
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231 | 231 |
232 for (i = 0; i < width; i++) { | 232 for (i = 0; i < width; i++) { |
233 temp = 8; | 233 temp = 8; |
234 temp += source[i - (int)src_pitch] * 3; | 234 temp += source[i - (int)src_pitch] * 3; |
235 temp += source[i] * 10; | 235 temp += source[i] * 10; |
236 temp += source[i + src_pitch] * 3; | 236 temp += source[i + src_pitch] * 3; |
237 temp >>= 4; | 237 temp >>= 4; |
238 dest[i] = (unsigned char)(temp); | 238 dest[i] = (unsigned char)(temp); |
239 } | 239 } |
240 } | 240 } |
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