bool Event_channel_slide_lowpass_process(
Channel* ch,
Device_states* dstates,
const Value* value)
{
assert(ch != NULL);
assert(dstates != NULL);
(void)dstates;
assert(value != NULL);
assert(value->type == VALUE_TYPE_FLOAT);
const double target_cutoff = value->value.float_type;
const double target_cutoff_exp = exp2((target_cutoff + 86) / 12);
const double inf_limit = exp2((86.0 + 86) / 12);
for (int i = 0; i < KQT_GENERATORS_MAX; ++i)
{
Event_check_voice(ch, i);
Voice_state* vs = ch->fg[i]->state;
if (Slider_in_progress(&vs->lowpass_slider))
Slider_change_target(&vs->lowpass_slider, target_cutoff_exp);
else
Slider_start(&vs->lowpass_slider,
target_cutoff_exp,
isfinite(vs->lowpass) ? vs->lowpass : inf_limit);
}
return true;
}
void Linear_controls_slide_value_target(Linear_controls* lc, double value)
{
rassert(lc != NULL);
rassert(isfinite(value));
if (Slider_in_progress(&lc->slider))
Slider_change_target(&lc->slider, value);
else
Slider_start(&lc->slider, value, lc->value);
return;
}
bool Event_master_slide_volume_process(
Master_params* master_params, const Event_params* params)
{
rassert(master_params != NULL);
rassert(params != NULL);
rassert(params->arg != NULL);
rassert(params->arg->type == VALUE_TYPE_FLOAT);
const double target = exp2(params->arg->value.float_type / 6);
if (Slider_in_progress(&master_params->volume_slider))
Slider_change_target(&master_params->volume_slider, target);
else
Slider_start(&master_params->volume_slider, target, master_params->volume);
return true;
}
