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Rewrote most of the synth to better support stereo signals and polyphony. VSTi removed as there is no plan to update the VSTi to support the new features.

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The stereo opcode variants have bit 1 of the command stream set. The polyphony is split into two parts: 1) polyphony, meaning that voices reuse the same opcodes; 2) multitrack voices, meaning that a track triggers more than voice. They both can be flexible defined in any combinations: for example voice 1 and 2 can be triggered by track 1 and use instrument 1, and voice 3 by track 2/instrument 2 and voice 4 by track 3/instrument 2. This is achieved through the use of bitmasks: in the aforementioned example, bit 1 of su_voicetrack_bitmask would be set, meaning "the voice after voice #1 will be triggered by the same track". On the other hand, bits 1 and 3 of su_polyphony_bitmask would be set to indicate that "the voices after #1 and #3 will reuse the same instruments".
This commit is contained in:
Veikko Sariola
2020-05-16 08:25:52 +03:00
parent 5c1b87f254
commit 78d4cd50e8
238 changed files with 3460 additions and 21774 deletions
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28
tests/test_renderer.c
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@ -12,10 +12,8 @@
#include <math.h>
extern void __stdcall _4klang_render();
extern int test_max_samples;
extern void __stdcall su_render();
extern int su_max_samples;
int main(int argc, char* argv[]) {
FILE* f;
@ -29,17 +27,17 @@ int main(int argc, char* argv[]) {
long bufsize;
boolean small_difference;
double diff;
#ifndef GO4K_USE_16BIT_OUTPUT
#ifndef SU_USE_16BIT_OUTPUT
float* buf = NULL;
float* filebuf = NULL;
float v;
bufsize = test_max_samples * 2 * sizeof(float);
bufsize = su_max_samples * 2 * sizeof(float);
buf = (float*)malloc(bufsize);
#else
short* buf = NULL;
short* filebuf = NULL;
short v;
bufsize = test_max_samples * 2 * sizeof(short);
bufsize = su_max_samples * 2 * sizeof(short);
buf = (short*)malloc(bufsize);
#endif
@ -48,7 +46,7 @@ int main(int argc, char* argv[]) {
return 1;
}
_4klang_render(buf);
su_render(buf);
snprintf(filename, sizeof filename, "%s%s%s", expected_output_folder, test_name, ".raw");
@ -73,7 +71,7 @@ int main(int argc, char* argv[]) {
goto fail;
}
#ifndef GO4K_USE_16BIT_OUTPUT
#ifndef SU_USE_16BIT_OUTPUT
filebuf = (float*)malloc(bufsize);
#else
filebuf = (short*)malloc(bufsize);
@ -84,17 +82,17 @@ int main(int argc, char* argv[]) {
goto fail;
}
fread((void*)filebuf, test_max_samples * 2, sizeof(*filebuf), f);
fread((void*)filebuf, su_max_samples * 2, sizeof(*filebuf), f);
small_difference = FALSE;
for (n = 0; n < test_max_samples * 2; n++) {
for (n = 0; n < su_max_samples * 2; n++) {
diff = (double)(buf[n]) - (double)(filebuf[n]);
#ifdef GO4K_USE_16BIT_OUTPUT
#ifdef SU_USE_16BIT_OUTPUT
diff = diff / 32768.0f;
#endif
diff = fabs(diff);
if (diff > 1e-4f) {
if (diff > 1e-3f || isnan(diff)) {
printf("4klang rendered different wave than expected\n");
goto fail;
}
@ -104,7 +102,7 @@ int main(int argc, char* argv[]) {
}
if (small_difference) {
printf("4klang rendered almost correct wave, but with small errors (< 1e-4)\n");
printf("4klang rendered almost correct wave, but with small errors (< 1e-3)\n");
goto fail;
}
@ -128,7 +126,7 @@ end:
snprintf(filename, sizeof filename, "%s%s%s", actual_output_folder, test_name, ".raw");
f = fopen(filename, "wb");
fwrite((void*)buf, sizeof(*buf), 2 * test_max_samples, f);
fwrite((void*)buf, sizeof(*buf), 2 * su_max_samples, f);
fclose(f);
if (buf != 0) {