ardour/livetrax
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do not update LV2 output port displays unless the value has changed

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This commit is contained in:
Paul Davis 2015-10-20 11:39:56 -04:00
parent 1d4494961b
commit 47bbffc5d8
1 changed files with 17 additions and 4 deletions
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21
gtk2_ardour/lv2_plugin_ui.cc
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@ -189,8 +189,14 @@ LV2PluginUI::output_update()
uint32_t nports = _output_ports.size();
for (uint32_t i = 0; i < nports; ++i) {
uint32_t index = _output_ports[i];
float val = _lv2->get_parameter(index);
suil_instance_port_event ((SuilInstance*)_inst, index, 4, 0, &val);
float val = _lv2->get_parameter (index);
if (val != _values[index]) {
/* Send to GUI */
suil_instance_port_event ((SuilInstance*)_inst, index, 4, 0, &val);
/* Cache current value */
_values[index] = val;
}
}
/* Input ports marked for update because the control value changed
@ -368,10 +374,16 @@ LV2PluginUI::lv2ui_instantiate(const std::string& title)
_values = new float[num_ports];
_controllables.resize(num_ports);
for (uint32_t i = 0; i < num_ports; ++i) {
bool ok;
uint32_t port = _lv2->nth_parameter(i, ok);
if (ok) {
/* Cache initial value of the parameter, regardless of
whether it is input or output
*/
_values[port] = _lv2->get_parameter(port);
_controllables[port] = boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (
insert->control(Evoral::Parameter(PluginAutomation, 0, port)));
@ -379,9 +391,10 @@ LV2PluginUI::lv2ui_instantiate(const std::string& title)
if (_controllables[port]) {
_controllables[port]->Changed.connect (control_connections, invalidator (*this), boost::bind (&LV2PluginUI::control_changed, this, port), gui_context());
}
/* queue for first update ("push") to GUI */
_updates.insert (port);
}
/* queue for first update ("push") to GUI */
_updates.insert (port);
}
}