| 1 | /* |
| 2 | * This file is part of FFmpeg. |
| 3 | * |
| 4 | * FFmpeg is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Lesser General Public |
| 6 | * License as published by the Free Software Foundation; either |
| 7 | * version 2.1 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * FFmpeg is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Lesser General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU Lesser General Public |
| 15 | * License along with FFmpeg; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | */ |
| 18 | |
| 19 | #include "config.h" |
| 20 | |
| 21 | #include "pixelutils.h" |
| 22 | #include "cpu.h" |
| 23 | |
| 24 | int ff_pixelutils_sad_8x8_mmx(const uint8_t *src1, ptrdiff_t stride1, |
| 25 | const uint8_t *src2, ptrdiff_t stride2); |
| 26 | int ff_pixelutils_sad_8x8_mmxext(const uint8_t *src1, ptrdiff_t stride1, |
| 27 | const uint8_t *src2, ptrdiff_t stride2); |
| 28 | |
| 29 | int ff_pixelutils_sad_16x16_mmxext(const uint8_t *src1, ptrdiff_t stride1, |
| 30 | const uint8_t *src2, ptrdiff_t stride2); |
| 31 | int ff_pixelutils_sad_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1, |
| 32 | const uint8_t *src2, ptrdiff_t stride2); |
| 33 | int ff_pixelutils_sad_a_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1, |
| 34 | const uint8_t *src2, ptrdiff_t stride2); |
| 35 | int ff_pixelutils_sad_u_16x16_sse2(const uint8_t *src1, ptrdiff_t stride1, |
| 36 | const uint8_t *src2, ptrdiff_t stride2); |
| 37 | |
| 38 | void ff_pixelutils_sad_init_x86(av_pixelutils_sad_fn *sad, int aligned) |
| 39 | { |
| 40 | int cpu_flags = av_get_cpu_flags(); |
| 41 | |
| 42 | if (EXTERNAL_MMX(cpu_flags)) { |
| 43 | sad[2] = ff_pixelutils_sad_8x8_mmx; |
| 44 | } |
| 45 | |
| 46 | if (EXTERNAL_MMXEXT(cpu_flags)) { |
| 47 | sad[2] = ff_pixelutils_sad_8x8_mmxext; |
| 48 | sad[3] = ff_pixelutils_sad_16x16_mmxext; |
| 49 | } |
| 50 | |
| 51 | if (EXTERNAL_SSE2(cpu_flags)) { |
| 52 | switch (aligned) { |
| 53 | case 0: sad[3] = ff_pixelutils_sad_16x16_sse2; break; // src1 unaligned, src2 unaligned |
| 54 | case 1: sad[3] = ff_pixelutils_sad_u_16x16_sse2; break; // src1 aligned, src2 unaligned |
| 55 | case 2: sad[3] = ff_pixelutils_sad_a_16x16_sse2; break; // src1 aligned, src2 aligned |
| 56 | } |
| 57 | } |
| 58 | } |