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/lls2.h"
24#include "libavutil/x86/cpu.h"
25
26void ff_update_lls_sse2(LLSModel2 *m, double *var);
27void ff_update_lls_avx(LLSModel2 *m, double *var);
28double ff_evaluate_lls_sse2(LLSModel2 *m, double *var, int order);
29
30av_cold void ff_init_lls_x86(LLSModel2 *m)
31{
32    int cpu_flags = av_get_cpu_flags();
33    if (EXTERNAL_SSE2(cpu_flags)) {
34        m->update_lls = ff_update_lls_sse2;
35        if (m->indep_count >= 4)
36            m->evaluate_lls = ff_evaluate_lls_sse2;
37    }
38    if (EXTERNAL_AVX(cpu_flags)) {
39        m->update_lls = ff_update_lls_avx;
40    }
41}
42