| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * | ||
| 3 | * Original MPlayer filters by Richard Felker. | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or modify | ||
| 8 | * it under the terms of the GNU General Public License as published by | ||
| 9 | * the Free Software Foundation; either version 2 of the License, or | ||
| 10 | * (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 15 | * GNU General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License along | ||
| 18 | * with FFmpeg; if not, write to the Free Software Foundation, Inc., | ||
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | */ | ||
| 21 | |||
| 22 | #include "libavutil/attributes.h" | ||
| 23 | #include "libavutil/cpu.h" | ||
| 24 | #include "libavutil/x86/cpu.h" | ||
| 25 | #include "libavutil/x86/asm.h" | ||
| 26 | #include "libavfilter/vf_eq.h" | ||
| 27 | |||
| 28 | extern void ff_process_one_line_sse2(const uint8_t *src, uint8_t *dst, short contrast, | ||
| 29 | short brightness, int w); | ||
| 30 | |||
| 31 | 1 | static void process_sse2(EQParameters *param, uint8_t *dst, int dst_stride, | |
| 32 | const uint8_t *src, int src_stride, int w, int h) | ||
| 33 | { | ||
| 34 | 1 | short contrast = (short) (param->contrast * 256 * 16); | |
| 35 | 1 | short brightness = ((short) (100.0 * param->brightness + 100.0) * 511) | |
| 36 | 1 | / 200 - 128 - contrast / 32; | |
| 37 | |||
| 38 |
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257 | while (h--) { |
| 39 | 256 | ff_process_one_line_sse2(src, dst, contrast, brightness, w); | |
| 40 | 256 | src += src_stride; | |
| 41 | 256 | dst += dst_stride; | |
| 42 | } | ||
| 43 | 1 | } | |
| 44 | |||
| 45 | 14 | av_cold void ff_eq_init_x86(EQContext *eq) | |
| 46 | { | ||
| 47 | 14 | int cpu_flags = av_get_cpu_flags(); | |
| 48 |
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14 | if (EXTERNAL_SSE2(cpu_flags)) { |
| 49 | 10 | eq->process = process_sse2; | |
| 50 | } | ||
| 51 | 14 | } | |
| 52 |