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https://git.ffmpeg.org/ffmpeg.git
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97fd5d3363
Should fix failures for some seeds on x86_32. Signed-off-by: James Almer <jamrial@gmail.com>
102 lines
3.4 KiB
C
102 lines
3.4 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* FFmpeg 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <float.h>
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#include "libavutil/lls.h"
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#include "checkasm.h"
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#define randomize_buffer(buf) \
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do { \
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double bmg[2], stddev = 10.0; \
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\
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for (size_t i = 0; i < MAX_VARS_ALIGN; i += 2) { \
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av_bmg_get(&checkasm_lfg, bmg); \
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buf[i] = bmg[0] * stddev; \
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buf[i + 1] = bmg[1] * stddev; \
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} \
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} while(0);
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static void test_update(LLSModel *lls, const double *var)
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{
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double refcovar[MAX_VARS][MAX_VARS];
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declare_func(void, LLSModel *, const double *);
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call_ref(lls, var);
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for (size_t i = 0; i < MAX_VARS; i++)
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for (size_t j = 0; j < MAX_VARS; j++)
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refcovar[i][j] = lls->covariance[i][j];
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memset(lls->covariance, 0, sizeof (lls->covariance));
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call_new(lls, var);
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for (size_t i = 0; i < lls->indep_count; i++)
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for (size_t j = i; j < lls->indep_count; j++)
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if (!double_near_abs_eps(refcovar[i][j], lls->covariance[i][j],
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8 * DBL_EPSILON)) {
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fprintf(stderr, "%zu, %zu: %- .12f - %- .12f = % .12g\n", i, j,
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refcovar[i][j], lls->covariance[i][j],
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refcovar[i][j] - lls->covariance[i][j]);
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fail();
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}
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bench_new(lls, var);
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}
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#define EPS 0.2
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static void test_evaluate(LLSModel *lls, const double *param, int order)
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{
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double refprod, newprod;
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declare_func_float(double, LLSModel *, const double *, int);
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refprod = call_ref(lls, param, order);
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newprod = call_new(lls, param, order);
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if (!double_near_abs_eps(refprod, newprod, EPS)) {
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fprintf(stderr, "%- .12f - %- .12f = % .12g\n",
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refprod, newprod, refprod - newprod);
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fail();
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}
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if (order == lls->indep_count)
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bench_new(lls, param, order);
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}
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void checkasm_check_lls(void)
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{
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static const unsigned char counts[] = { 8, 12, MAX_VARS, };
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for (size_t i = 0; i < FF_ARRAY_ELEMS(counts); i++) {
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LOCAL_ALIGNED_32(double, var, [MAX_VARS_ALIGN]);
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LOCAL_ALIGNED_32(double, param, [FFALIGN(MAX_VARS+2,4)]);
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LLSModel lls;
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avpriv_init_lls(&lls, counts[i]);
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randomize_buffer(var);
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randomize_buffer(param);
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if (check_func(lls.update_lls, "update_lls_%d", counts[i]))
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test_update(&lls, var);
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for (size_t j = 0; j <= i; j++)
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if (check_func(lls.evaluate_lls, "evaluate_lls_%d_%d", counts[i],
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counts[j]))
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test_evaluate(&lls, param + 1, counts[j]);
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}
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report("lls");
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}
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