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Notify custom UIs when designated LV2 BPM port changes

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This commit is contained in:
Robin Gareus 2019-05-08 22:01:07 +02:00
parent f08e2b7eb1
commit 48b960fdef
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
2 changed files with 20 additions and 1 deletions
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1
libs/ardour/ardour/lv2_plugin.h
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@ -192,6 +192,7 @@ class LIBARDOUR_API LV2Plugin : public ARDOUR::Plugin, public ARDOUR::Workee
double _current_bpm;
PBD::ID _insert_id;
std::string _plugin_state_dir;
uint32_t _bpm_control_port_index;
uint32_t _patch_port_in_index;
uint32_t _patch_port_out_index;
URIMap& _uri_map;

20
libs/ardour/lv2_plugin.cc
View File

@ -356,6 +356,7 @@ LV2Plugin::LV2Plugin (AudioEngine& engine,
, _worker(NULL)
, _state_worker(NULL)
, _insert_id("0")
, _bpm_control_port_index((uint32_t)-1)
, _patch_port_in_index((uint32_t)-1)
, _patch_port_out_index((uint32_t)-1)
, _uri_map(URIMap::instance())
@ -373,6 +374,7 @@ LV2Plugin::LV2Plugin (const LV2Plugin& other)
, _worker(NULL)
, _state_worker(NULL)
, _insert_id(other._insert_id)
, _bpm_control_port_index((uint32_t)-1)
, _patch_port_in_index((uint32_t)-1)
, _patch_port_out_index((uint32_t)-1)
, _uri_map(URIMap::instance())
@ -759,6 +761,11 @@ LV2Plugin::init(const void* c_plugin, samplecnt_t rate)
_impl->designated_input (LV2_TIME__beatsPerMinute, params, (void**)&_bpm_control_port);
_impl->designated_input (LV2_CORE__freeWheeling, params, (void**)&_freewheel_control_port);
const LilvPort* bpmport = lilv_plugin_get_port_by_designation(plugin, _world.lv2_InputPort, _world.time_beatsPerMin);
if (bpmport) {
_bpm_control_port_index = lilv_port_get_index (plugin, bpmport);
}
for (uint32_t i = 0; i < num_ports; ++i) {
const LilvPort* port = lilv_plugin_get_port_by_index(plugin, i);
const LilvNode* sym = lilv_port_get_symbol(plugin, port);
@ -2397,6 +2404,9 @@ LV2Plugin::set_automation_control (uint32_t i, boost::shared_ptr<AutomationContr
DEBUG_TRACE(DEBUG::LV2Automate, string_compose ("Ctrl Port %1\n", i));
_ctrl_map [i] = AutomationCtrlPtr (new AutomationCtrl(c));
}
else if (i == _bpm_control_port_index) {
_ctrl_map [i] = AutomationCtrlPtr (new AutomationCtrl(c));
}
}
LV2Plugin::AutomationCtrlPtr
@ -2577,7 +2587,15 @@ LV2Plugin::connect_and_run(BufferSet& bufs,
}
if (_bpm_control_port) {
*_bpm_control_port = tmap.tempo_at_sample (start).note_types_per_minute();
float bpm = tmap.tempo_at_sample (start).note_types_per_minute();
if (*_bpm_control_port != bpm) {
AutomationCtrlPtr c = get_automation_control (_bpm_control_port_index);
if (c && c->ac) {
/* may be NULL for replicated instances - only one custom UI/ctrl */
c->ac->Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
}
}
*_bpm_control_port = bpm;
}
#ifdef LV2_EXTENDED