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feat: add the ability to use Sointu as a sync-tracker

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There is a new "sync" opcode that saves the top-most signal every 256 samples to the new "syncBuffer" output. Additionally, you can enable saving the current fractional row as sync[0], avoiding calculating the beat in the shader, but also calculating the beat correctly when the beat is modulated.
This commit is contained in:
vsariola
2021-03-09 23:47:27 +02:00
parent a3bdf565fd
commit 99dbdfe223
30 changed files with 375 additions and 88 deletions
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52
tests/test_renderer.c
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@ -16,6 +16,11 @@
#include TEST_HEADER
SUsample buf[SU_BUFFER_LENGTH];
SUsample filebuf[SU_BUFFER_LENGTH];
#ifdef SU_SYNC
float syncBuf[SU_SYNCBUFFER_LENGTH];
float fileSyncBuf[SU_BUFFER_LENGTH];
#endif
int main(int argc, char* argv[]) {
FILE* f;
@ -36,7 +41,11 @@ int main(int argc, char* argv[]) {
su_load_gmdls();
#endif
#ifdef SU_SYNC
su_render_song(buf, syncBuf);
#else
su_render_song(buf);
#endif
#if defined (_WIN32)
CreateDirectory(actual_output_folder, NULL);
@ -49,6 +58,13 @@ int main(int argc, char* argv[]) {
fwrite((void*)buf, sizeof(SUsample), SU_BUFFER_LENGTH, f);
fclose(f);
#ifdef SU_SYNC
snprintf(filename, sizeof filename, "%s%s%s", actual_output_folder, test_name, "_syncbuf.raw");
f = fopen(filename, "wb");
fwrite((void*)syncBuf, sizeof(float), SU_SYNCBUFFER_LENGTH, f);
fclose(f);
#endif
f = fopen(argv[1], "rb");
if (f == NULL) {
@ -92,6 +108,42 @@ int main(int argc, char* argv[]) {
printf("Warning: Sointu rendered almost correct wave, but a small maximum error of %f\n",max_diff);
}
#ifdef SU_SYNC
f = fopen(argv[2], "rb");
if (f == NULL) {
printf("No expected sync waveform found!\n");
goto fail;
}
fseek(f, 0, SEEK_END);
fsize = ftell(f);
fseek(f, 0, SEEK_SET);
if (SU_SYNCBUFFER_LENGTH * sizeof(float) < fsize) {
printf("Sointu rendered shorter sync wave than expected\n");
goto fail;
}
if (SU_SYNCBUFFER_LENGTH * sizeof(float) > fsize) {
printf("Sointu rendered longer sync wave than expected\n");
goto fail;
}
fread((void*)fileSyncBuf, fsize, 1, f);
fclose(f);
f = NULL;
max_diff = 0.0f;
for (n = 0; n < SU_SYNCBUFFER_LENGTH; n++) {
diff = (float)fabs(syncBuf[n] - fileSyncBuf[n]);
if (diff > 1e-3f || isnan(diff)) {
printf("Sointu rendered different sync wave than expected\n");
goto fail;
}
}
#endif
return 0;
fail: