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Fix all CMake tests passing on MinGW: consider minor (< 1e-6) errors in waveform shape successes.

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Such errors are due to floating point rounding errors.
This commit is contained in:
Veikko Sariola 2020-10-22 21:03:54 +03:00
parent b9ec015b4a
commit 95b70018cc
2 changed files with 8 additions and 9 deletions
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1
tests/test_render_samples.c
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@ -1,5 +1,6 @@
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "../include/sointu.h"
#if UINTPTR_MAX == 0xffffffff // are we 32-bit?

16
tests/test_renderer.c
View File

@ -42,8 +42,8 @@ int main(int argc, char* argv[]) {
char actual_output_folder[] = "actual_output/";
long fsize;
long bufsize;
bool small_difference;
double diff;
float max_diff;
float diff;
#ifndef SU_USE_16BIT_OUTPUT
float* buf = NULL;
float* filebuf = NULL;
@ -105,10 +105,10 @@ int main(int argc, char* argv[]) {
fread((void*)filebuf, su_max_samples * 2, sizeof(*filebuf), f);
small_difference = false;
max_diff = 0.0f;
for (n = 0; n < su_max_samples * 2; n++) {
diff = (double)(buf[n]) - (double)(filebuf[n]);
diff = buf[n] - filebuf[n];
#ifdef SU_USE_16BIT_OUTPUT
diff = diff / 32768.0f;
#endif
@ -117,13 +117,11 @@ int main(int argc, char* argv[]) {
printf("4klang rendered different wave than expected\n");
goto fail;
}
else if (diff > 0.0f) {
small_difference = true;
}
max_diff = fmax(diff, max_diff);
}
if (small_difference) {
printf("4klang rendered almost correct wave, but with small errors (< 1e-3)\n");
if (max_diff > 1e-6) {
printf("4klang rendered almost correct wave, but a small maximum error of %f\n",max_diff);
goto fail;
}