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41 lines
1.4 KiB
41 lines
1.4 KiB
/* |
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* linear least squares model |
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* |
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* Copyright (c) 2013 Loren Merritt |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/lls.h" |
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#include "libavutil/x86/cpu.h" |
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void ff_update_lls_sse2(LLSModel *m, double *var); |
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void ff_update_lls_avx(LLSModel *m, double *var); |
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double ff_evaluate_lls_sse2(LLSModel *m, double *var, int order); |
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av_cold void ff_init_lls_x86(LLSModel *m) |
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{ |
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int cpu_flags = av_get_cpu_flags(); |
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if (EXTERNAL_SSE2(cpu_flags)) { |
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m->update_lls = ff_update_lls_sse2; |
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if (m->indep_count >= 4) |
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m->evaluate_lls = ff_evaluate_lls_sse2; |
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} |
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if (EXTERNAL_AVX(cpu_flags)) { |
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m->update_lls = ff_update_lls_avx; |
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} |
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}
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