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checkasm: af_afir: Use a dynamic tolerance depending on values 

As the values generated by av_bmg_get can be arbitrarily large
(only the stddev is specified), we can't use a fixed tolerance.
Calculate a dynamic tolerance (like in float_dsp from 38f966b222),
based on the individual steps of the calculation.

This fixes running this test with certain seeds, when built with
clang for mingw/x86_32.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2019-12-11 11:15:11 +02:00
parent 9d1f7870a9
commit f58bda642d
1 changed files with 13 additions and 1 deletions
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14
tests/checkasm/af_afir.c
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@ -53,7 +53,19 @@ static void test_fcmul_add(const float *src0, const float *src1, const float *sr
call_ref(cdst, src1, src2, LEN);
call_new(odst, src1, src2, LEN);
for (i = 0; i <= LEN*2; i++) {
if (!float_near_abs_eps(cdst[i], odst[i], 6.2e-05)) {
int idx = i & ~1;
float cre = src2[idx];
float cim = src2[idx + 1];
float tre = src1[idx];
float tim = src1[idx + 1];
double t = fabs(src0[i]) +
fabs(tre) + fabs(tim) + fabs(cre) + fabs(cim) +
fabs(tre * cre) + fabs(tim * cim) +
fabs(tre * cim) + fabs(tim * cre) +
fabs(tre * cre - tim * cim) +
fabs(tre * cim + tim * cre) +
fabs(cdst[i]) + 1.0;
if (!float_near_abs_eps(cdst[i], odst[i], t * 2 * FLT_EPSILON)) {
fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
i, cdst[i], odst[i], cdst[i] - odst[i]);
fail();