| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (C) 2006 Aurelien Jacobs <aurel@gnuage.org> | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 6 | * FFmpeg is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU Lesser General Public | ||
| 8 | * License as published by the Free Software Foundation; either | ||
| 9 | * version 2.1 of the License, or (at your option) any later version. | ||
| 10 | * | ||
| 11 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 14 | * Lesser General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU Lesser General Public | ||
| 17 | * License along with FFmpeg; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | /** | ||
| 22 | * @file | ||
| 23 | * VP6 DSP-oriented functions | ||
| 24 | */ | ||
| 25 | |||
| 26 | #include "libavutil/common.h" | ||
| 27 | #include "vp56dsp.h" | ||
| 28 | |||
| 29 | |||
| 30 | 27346 | void ff_vp6_filter_diag4_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride, | |
| 31 | const int16_t *h_weights, const int16_t *v_weights) | ||
| 32 | { | ||
| 33 | int x, y; | ||
| 34 | int tmp[8*11]; | ||
| 35 | 27346 | int *t = tmp; | |
| 36 | |||
| 37 | 27346 | src -= stride; | |
| 38 | |||
| 39 |
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328152 | for (y=0; y<11; y++) { |
| 40 |
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2707254 | for (x=0; x<8; x++) { |
| 41 | 2406448 | t[x] = av_clip_uint8(( src[x-1] * h_weights[0] | |
| 42 | 2406448 | + src[x ] * h_weights[1] | |
| 43 | 2406448 | + src[x+1] * h_weights[2] | |
| 44 | 2406448 | + src[x+2] * h_weights[3] + 64) >> 7); | |
| 45 | } | ||
| 46 | 300806 | src += stride; | |
| 47 | 300806 | t += 8; | |
| 48 | } | ||
| 49 | |||
| 50 | 27346 | t = tmp + 8; | |
| 51 |
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246114 | for (y=0; y<8; y++) { |
| 52 |
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1968912 | for (x=0; x<8; x++) { |
| 53 | 1750144 | dst[x] = av_clip_uint8(( t[x-8 ] * v_weights[0] | |
| 54 | 1750144 | + t[x ] * v_weights[1] | |
| 55 | 1750144 | + t[x+8 ] * v_weights[2] | |
| 56 | 1750144 | + t[x+16] * v_weights[3] + 64) >> 7); | |
| 57 | } | ||
| 58 | 218768 | dst += stride; | |
| 59 | 218768 | t += 8; | |
| 60 | } | ||
| 61 | 27346 | } | |
| 62 |