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Separate Synth and SynthState: SynthState is the part that Render changes.

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This should make testing easier, as Synth can be assumed to stay the same
during each call. Synth is also the part that we can parse from .asm/.json file
and a Patch can be compiled into a synth. Synth can be eventually made
quite opaque to the user. The user should not need to worry about opcodes
etc.
This commit is contained in:
Veikko Sariola
2020-10-28 13:44:34 +02:00
parent 64afa9fb48
commit 8183c698da
13 changed files with 196 additions and 156 deletions
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23
tests/test_render_samples.c
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@ -20,6 +20,7 @@
const int su_max_samples = SAMPLES_PER_ROW * TOTAL_ROWS;
void CALLCONV su_render_song(float* buffer) {
Synth* synth;
SynthState* synthState;
const unsigned char commands[] = { su_envelope_id, // MONO
su_envelope_id, // MONO
@ -29,17 +30,23 @@ void CALLCONV su_render_song(float* buffer) {
95, 64, 64, 80, 128, // envelope 2
128};
int retval;
synthState = malloc(sizeof(SynthState));
// initialize Synth
synth = (Synth*)malloc(sizeof(Synth));
memcpy(synth->Commands, commands, sizeof(commands));
memcpy(synth->Values, values, sizeof(values));
synth->NumVoices = 1;
synth->Polyphony = 0;
// initialize SynthState
synthState = (SynthState*)malloc(sizeof(SynthState));
memset(synthState, 0, sizeof(SynthState));
memcpy(synthState->Commands, commands, sizeof(commands));
memcpy(synthState->Values, values, sizeof(values));
synthState->RandSeed = 1;
synthState->NumVoices = 1;
synthState->Synth.Voices[0].Note = 64;
retval = su_render(synthState, buffer, su_max_samples / 2);
synthState->Synth.Voices[0].Release++;
// triger first voice
synthState->SynthWrk.Voices[0].Note = 64;
retval = su_render(synth, synthState, buffer, su_max_samples / 2);
synthState->SynthWrk.Voices[0].Release++;
buffer = buffer + su_max_samples;
retval = su_render(synthState, buffer, su_max_samples / 2);
retval = su_render(synth, synthState, buffer, su_max_samples / 2);
free(synth);
free(synthState);
return;
}