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Trigger MIDI bindings.

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This commit is contained in:
Robin E. R. Davies
2024-12-06 04:20:39 -05:00
parent 9d64cf1f92
commit b07f590b49
10 changed files with 362 additions and 121 deletions
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src/Lv2Pedalboard.cpp
+124 -27
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@@ -169,6 +169,33 @@ std::vector<float *> Lv2Pedalboard::PrepareItems(
{
pLv2Effect->Run(frames, this->ringBufferWriter);
});
// Reset any trigger controls to default state after processing
if (pLv2Effect->IsLv2Effect())
{
Lv2Effect*lv2Effect = (Lv2Effect*)pLv2Effect;
auto pluginInfo = pHost->GetPluginInfo(item.uri());
if (pluginInfo) {
for (auto control: pluginInfo->ports())
{
if (control->trigger_property() && control->is_input() && control->is_control_port())
{
int controlIndex = lv2Effect->GetControlIndex(control->symbol());
if (controlIndex >= 0)
{
float defaultValue = control->default_value();
this->processActions.push_back(
[pLv2Effect,controlIndex,defaultValue](int32_t frames) {
pLv2Effect->SetControl(controlIndex,defaultValue);
}
);
}
}
}
}
}
}
}
if (pEffect)
@@ -287,13 +314,21 @@ void Lv2Pedalboard::PrepareMidiMap(const PedalboardItem &pedalboardItem)
mapping.controlIndex = controlIndex;
mapping.midiBinding = binding;
mapping.instanceId = pedalboardItem.instanceId();
if (pPortInfo->IsSwitch())
if (pPortInfo->trigger_property())
{
mapping.mappingType = binding.switchControlType() == LATCH_CONTROL_TYPE ? MappingType::Latched : MappingType::Momentary;
mapping.mappingType = MidiControlType::Trigger;
} else if (pPortInfo->IsSwitch())
{
mapping.mappingType = MidiControlType::Toggle;
}
else
else if (pPortInfo->enumeration_property())
{
mapping.mappingType = binding.linearControlType() == LATCH_CONTROL_TYPE ? MappingType::Linear : MappingType::Circular;
mapping.mappingType = MidiControlType::Select;
}
else
{
mapping.mappingType = MidiControlType::Dial;
}
if (binding.bindingType() == BINDING_TYPE_NOTE)
{
@@ -651,46 +686,108 @@ void Lv2Pedalboard::OnMidiMessage(size_t size, uint8_t *message,
{
switch (mapping.mappingType)
{
case MappingType::Circular:
case MappingType::Linear:
case MidiControlType::Trigger:
{
float thisRange = (mapping.midiBinding.maxValue() - mapping.midiBinding.minValue()) * range + mapping.midiBinding.minValue();
float value = mapping.pPortInfo->rangeToValue(thisRange);
this->SetControlValue(mapping.effectIndex, mapping.controlIndex, value);
pfnCallback(callbackHandle, mapping.instanceId, mapping.pPortInfo->index(), value);
break;
}
case MappingType::Latched:
{
range = std::round(range);
if (!mapping.hasLastValue)
bool triggered = false;
if (mapping.midiBinding.switchControlType() == SwitchControlTypeT::TRIGGER_ON_RISING_EDGE
|| mapping.midiBinding.bindingType() == BINDING_TYPE_NOTE
)
{
mapping.lastValue = 0;
mapping.hasLastValue = true;
if (mapping.lastValue < range)
{
if (!mapping.lastValueIncreasing) {
triggered = true;
}
mapping.lastValueIncreasing = true;
mapping.lastValue = range;
} else {
mapping.lastValueIncreasing = false;
mapping.lastValue = range;
}
} else {
triggered = true;
}
if (range != mapping.lastValue && range == 1)
if (triggered)
{
IEffect *pEffect = this->realtimeEffects[mapping.effectIndex];
float value = mapping.pPortInfo->max_value();
if (value == mapping.pPortInfo->default_value())
{
value = mapping.pPortInfo->min_value();
}
this->SetControlValue(mapping.effectIndex, mapping.controlIndex, value);
// do NOT notify anyone!
}
break;
}
case MidiControlType::Toggle:
{
bool triggered = false;
range = std::round(range);
if (mapping.midiBinding.switchControlType() == SwitchControlTypeT::TOGGLE_ON_RISING_EDGE)
{
if (range > mapping.lastValue)
{
if (!mapping.lastValueIncreasing) {
triggered = true;
}
mapping.lastValueIncreasing = true;
mapping.lastValue = range;
} else {
mapping.lastValueIncreasing = false;
mapping.lastValue = range;
}
if (triggered)
{
IEffect *pEffect = this->realtimeEffects[mapping.effectIndex];
float currentValue = pEffect->GetControlValue(mapping.controlIndex);
currentValue = currentValue == 0 ? 1 : 0;
pEffect->SetControl(mapping.controlIndex, currentValue);
pfnCallback(callbackHandle, mapping.instanceId, mapping.pPortInfo->index(), currentValue);
}
} else if (mapping.midiBinding.switchControlType() == SwitchControlTypeT::TOGGLE_ON_VALUE)
{
triggered = true;
mapping.lastValue = range;
IEffect *pEffect = this->realtimeEffects[mapping.effectIndex];
float currentValue = pEffect->GetControlValue(mapping.controlIndex);
currentValue = currentValue == 0 ? 1 : 0;
if (currentValue != range)
{
pEffect->SetControl(mapping.controlIndex, range);
pfnCallback(callbackHandle, mapping.instanceId, mapping.pPortInfo->index(), range);
}
} else {
// any control value toggles.
triggered = true;
mapping.lastValue = range;
IEffect *pEffect = this->realtimeEffects[mapping.effectIndex];
float currentValue = pEffect->GetControlValue(mapping.controlIndex);
currentValue = currentValue == 0 ? 1: 0;
pEffect->SetControl(mapping.controlIndex, currentValue);
pfnCallback(callbackHandle, mapping.instanceId, mapping.pPortInfo->index(), currentValue);
}
mapping.lastValue = range;
break;
}
case MappingType::Momentary:
case MidiControlType::Select:
case MidiControlType::Dial:
{
IEffect *pEffect = this->realtimeEffects[mapping.effectIndex];
float value = mapping.pPortInfo->rangeToValue(range);
if (pEffect->GetControlValue(mapping.controlIndex) != value)
range = mapping.midiBinding.adjustRange(range);
float currentValue = mapping.pPortInfo->rangeToValue(range);
if (pEffect->GetControlValue(mapping.controlIndex) != currentValue)
{
this->SetControlValue(mapping.effectIndex, mapping.controlIndex, value);
pfnCallback(callbackHandle, mapping.instanceId, mapping.pPortInfo->index(), value);
this->SetControlValue(mapping.effectIndex, mapping.controlIndex,currentValue);
pfnCallback(callbackHandle, mapping.instanceId, mapping.pPortInfo->index(), currentValue);
}
break;
}
case MidiControlType::None:
default:
break;
}
}
}