| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * linear least squares model | ||
| 3 | * | ||
| 4 | * Copyright (c) 2013 Loren Merritt | ||
| 5 | * | ||
| 6 | * This file is part of FFmpeg. | ||
| 7 | * | ||
| 8 | * FFmpeg is free software; you can redistribute it and/or | ||
| 9 | * modify it under the terms of the GNU Lesser General Public | ||
| 10 | * License as published by the Free Software Foundation; either | ||
| 11 | * version 2.1 of the License, or (at your option) any later version. | ||
| 12 | * | ||
| 13 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 16 | * Lesser General Public License for more details. | ||
| 17 | * | ||
| 18 | * You should have received a copy of the GNU Lesser General Public | ||
| 19 | * License along with FFmpeg; if not, write to the Free Software | ||
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 21 | */ | ||
| 22 | |||
| 23 | #include "libavutil/attributes.h" | ||
| 24 | #include "libavutil/lls.h" | ||
| 25 | #include "libavutil/x86/cpu.h" | ||
| 26 | |||
| 27 | void ff_update_lls_sse2(LLSModel *m, const double *var); | ||
| 28 | void ff_update_lls_avx(LLSModel *m, const double *var); | ||
| 29 | void ff_update_lls_fma3(LLSModel *m, const double *var); | ||
| 30 | double ff_evaluate_lls_sse2(LLSModel *m, const double *var, int order); | ||
| 31 | |||
| 32 | 221 | av_cold void ff_init_lls_x86(LLSModel *m) | |
| 33 | { | ||
| 34 | 221 | int cpu_flags = av_get_cpu_flags(); | |
| 35 |
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221 | if (EXTERNAL_SSE2(cpu_flags)) { |
| 36 | 27 | m->update_lls = ff_update_lls_sse2; | |
| 37 |
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27 | if (m->indep_count >= 4) |
| 38 | 27 | m->evaluate_lls = ff_evaluate_lls_sse2; | |
| 39 | } | ||
| 40 |
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221 | if (EXTERNAL_AVX_FAST(cpu_flags)) { |
| 41 | 9 | m->update_lls = ff_update_lls_avx; | |
| 42 | } | ||
| 43 |
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221 | if (EXTERNAL_FMA3_FAST(cpu_flags)) { |
| 44 | 6 | m->update_lls = ff_update_lls_fma3; | |
| 45 | } | ||
| 46 | 221 | } | |
| 47 |