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- LFO: added Sync modes Frequency, Phase and Frequency + Phase

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- added GUI Parameter MIDISYNC_MODE and MIDISYNC_BERATDIV
- wired MIDISYNC params down to global LFO

git-svn-id: http://moon:8086/svn/software/trunk/projects/JaySynth@726 b431acfa-c32f-4a4a-93f1-934dc6c82436
This commit is contained in:
jens
2020-08-15 12:32:16 +00:00
parent 7b731dd270
commit 0f8abfd428
9 changed files with 278 additions and 42 deletions
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Source/synth/lfo.c
+55 -19
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@@ -71,15 +71,17 @@ synth_float_t phase_det(synth_float_t lo, synth_float_t ref)
return perr;
}
void Sync_init(sync_t *pObj)
void Sync_init(sync_t *pObj, lfo_t *pLfo)
{
pObj->phase = 0;
pObj->phase_int = 0;
pObj->phase_ref = 0;
pObj->omega = 0.0;
pObj->accu = 0;
pObj->klead = 1.0;
pObj->klag = 0.04/200;
pObj->phase_update = 0;
pObj->pLfo = pLfo;
}
void Sync_phase_update(sync_t *pObj, synth_float_t phase_ref)
@@ -90,8 +92,35 @@ void Sync_phase_update(sync_t *pObj, synth_float_t phase_ref)
sync_result_t Sync_process(sync_t *pObj, synth_float_t omega_base)
{
int sync_mode = (int)pObj->pLfo->param[LFO_PARAM2_MIDISYNC_MODE];
synth_float_t phase_ref = pObj->phase_ref;
sync_result_t result;
result.phase = Sync_mod(pObj->phase + pObj->omega, 1.0);
pObj->phase_int = Sync_mod(pObj->phase_int + pObj->omega, 1.0);
switch (sync_mode)
{
case LFO_SYNC_MODE_OFF:
pObj->phase = Sync_mod(pObj->phase + omega_base, 1.0);
break;
case LFO_SYNC_MODE_F:
pObj->phase = Sync_mod(pObj->phase + pObj->omega, 1.0);
break;
case LFO_SYNC_MODE_F_P:
pObj->phase = pObj->phase_int;
break;
case LFO_SYNC_MODE_P:
pObj->phase = Sync_mod(pObj->phase + omega_base, 1.0);
if (pObj->phase_update && phase_ref == 0)
{
pObj->phase = 0;
}
break;
}
result.phase = Sync_mod(pObj->phase, 1.0);
result.is_cycle_start = (pObj->phase > result.phase);
pObj->phase = result.phase;
@@ -99,8 +128,8 @@ sync_result_t Sync_process(sync_t *pObj, synth_float_t omega_base)
if (pObj->phase_update)
{
pObj->phase_update = 0;
perr = phase_det(pObj->phase, pObj->phase_ref);
SynthDebug("phase_ref=%f, phase_lo=%f, perr=%f\n", pObj->phase_ref, pObj->phase, perr);
perr = phase_det(pObj->phase_int, phase_ref);
SynthDebug("phase_ref=%f, phase_lo=%f, perr=%f\n", phase_ref, pObj->phase_int, perr);
// SynthDebug("syncOnFreqUpdate(): BPM=%f\n", omega*pObj->fs*60);
}
@@ -136,7 +165,7 @@ void LFO_Init(lfo_t *pObj, synth_float_t fs)
Noise_Init(&pObj->noise, 1+(UINT32)clock() * (UINT32)clock());
Sync_init(&pObj->sync);
Sync_init(&pObj->sync, pObj);
}
void LFO_Free(lfo_t *pObj)
@@ -170,6 +199,7 @@ void LFO_SetFS(lfo_t *pObj, synth_float_t fs)
void LFO_Reset(lfo_t *pObj, synth_float_t initial_phase)
{
pObj->sync.phase = initial_phase;
pObj->smooth_out = 0;
pObj->delay_x = 0;
pObj->attack_y = 0;
@@ -180,43 +210,49 @@ void LFO_Reset(lfo_t *pObj, synth_float_t initial_phase)
void LFO_sync(lfo_t *pObj, synth_float_t phase_ref)
{
synth_float_t note_1_x = pObj->param[LFO_PARAM2_MIDISYNC_BEATDIV];
phase_ref = Sync_mod(note_1_x*phase_ref, 1.0);
Sync_phase_update(&pObj->sync, phase_ref);
}
void LFO_Param2Set(lfo_t *pObj, UINT32 type, synth_float_t value)
{
int param_changed = 0;
if (pObj->param[type] != value)
{
pObj->param[type] = value;
param_changed = 1;
}
switch(type)
{
case LFO_PARAM2_WAVEFORM:
if (pObj->param[type] == (UINT32)value)
break;
pObj->param[type] = (UINT32)value;
pObj->freq_update_req = 1;
pObj->freq_update_req = param_changed;
break;
case LFO_PARAM2_FREQ:
pObj->param[type] = value;
pObj->freq_update_req = 1;
pObj->freq_update_req = param_changed;
break;
case LFO_PARAM2_SMOOTH:
pObj->param[type] = value;
LFO_smmother_update(pObj);
if (param_changed)
{
LFO_smmother_update(pObj);
}
break;
case LFO_PARAM2_DELAY:
pObj->param[type] = value;
pObj->freq_update_req = 1;
pObj->freq_update_req = param_changed;
break;
case LFO_PARAM2_ATTACK:
pObj->param[type] = value;
pObj->freq_update_req = 1;
pObj->freq_update_req = param_changed;
break;
case LFO_PARAM2_SYMMETRY:
pObj->param[type] = value;
pObj->offset = 0.5 *value;
if (param_changed)
{
pObj->offset = 0.5 *value;
}
break;
default: