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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 <stdint.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h>
#include "../include/sointu.h" #include "../include/sointu.h"
#if UINTPTR_MAX == 0xffffffff // are we 32-bit? #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/"; char actual_output_folder[] = "actual_output/";
long fsize; long fsize;
long bufsize; long bufsize;
bool small_difference; float max_diff;
double diff; float diff;
#ifndef SU_USE_16BIT_OUTPUT #ifndef SU_USE_16BIT_OUTPUT
float* buf = NULL; float* buf = NULL;
float* filebuf = NULL; float* filebuf = NULL;
@ -105,10 +105,10 @@ int main(int argc, char* argv[]) {
fread((void*)filebuf, su_max_samples * 2, sizeof(*filebuf), f); 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++) { 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 #ifdef SU_USE_16BIT_OUTPUT
diff = diff / 32768.0f; diff = diff / 32768.0f;
#endif #endif
@ -117,13 +117,11 @@ int main(int argc, char* argv[]) {
printf("4klang rendered different wave than expected\n"); printf("4klang rendered different wave than expected\n");
goto fail; goto fail;
} }
else if (diff > 0.0f) { max_diff = fmax(diff, max_diff);
small_difference = true;
}
} }
if (small_difference) { if (max_diff > 1e-6) {
printf("4klang rendered almost correct wave, but with small errors (< 1e-3)\n"); printf("4klang rendered almost correct wave, but a small maximum error of %f\n",max_diff);
goto fail; goto fail;
} }