#include "midi++/parser.h"
#include "midi++/port.h"
+#include "ardour/async_midi_port.h"
#include "ardour/event_type_map.h"
+#include "ardour/midi_buffer.h"
#include "ardour/midi_port.h"
#include "ardour/midi_scene_change.h"
#include "ardour/midi_scene_changer.h"
MIDISceneChanger::MIDISceneChanger (Session& s)
: SceneChanger (s)
, _recording (true)
- , last_bank_message_time (-1)
+ , have_seen_bank_changes (false)
, last_program_message_time (-1)
, last_delivered_program (-1)
, last_delivered_bank (-1)
-
+
{
- _session.locations()->changed.connect_same_thread (*this, boost::bind (&MIDISceneChanger::locations_changed, this, _1));
- Location::scene_changed.connect_same_thread (*this, boost::bind (&MIDISceneChanger::gather, this));
+ /* catch any add/remove/clear etc. for all Locations */
+ _session.locations()->changed.connect_same_thread (*this, boost::bind (&MIDISceneChanger::locations_changed, this));
+ _session.locations()->added.connect_same_thread (*this, boost::bind (&MIDISceneChanger::locations_changed, this));
+ _session.locations()->removed.connect_same_thread (*this, boost::bind (&MIDISceneChanger::locations_changed, this));
+
+ /* catch class-based signal that notifies of us changes in the scene change state of any Location */
+ Location::scene_changed.connect_same_thread (*this, boost::bind (&MIDISceneChanger::locations_changed, this));
}
MIDISceneChanger::~MIDISceneChanger ()
}
void
-MIDISceneChanger::locations_changed (Locations::Change)
+MIDISceneChanger::locations_changed ()
{
- gather ();
+ _session.locations()->apply (*this, &MIDISceneChanger::gather);
}
/** Use the session's list of locations to collect all patch changes.
- *
+ *
* This is called whenever the locations change in anyway.
*/
void
-MIDISceneChanger::gather ()
+MIDISceneChanger::gather (const Locations::LocationList& locations)
{
- const Locations::LocationList& locations (_session.locations()->list());
boost::shared_ptr<SceneChange> sc;
+ Glib::Threads::RWLock::WriterLock lm (scene_lock);
+
scenes.clear ();
for (Locations::LocationList::const_iterator l = locations.begin(); l != locations.end(); ++l) {
boost::shared_ptr<MIDISceneChange> msc = boost::dynamic_pointer_cast<MIDISceneChange> (sc);
if (msc) {
- scenes.insert (std::make_pair (msc->time(), msc));
+
+ if (msc->bank() >= 0) {
+ have_seen_bank_changes = true;
+ }
+
+ scenes.insert (std::make_pair ((*l)->start(), msc));
}
}
}
}
void
-MIDISceneChanger::deliver (MidiBuffer& mbuf, framepos_t when, boost::shared_ptr<MIDISceneChange> msc)
+MIDISceneChanger::rt_deliver (MidiBuffer& mbuf, framepos_t when, boost::shared_ptr<MIDISceneChange> msc)
{
+ if (!msc->active()) {
+ return;
+ }
+
uint8_t buf[4];
size_t cnt;
+ MIDIOutputActivity (); /* EMIT SIGNAL */
+
if ((cnt = msc->get_bank_msb_message (buf, sizeof (buf))) > 0) {
mbuf.push_back (when, cnt, buf);
last_delivered_program = msc->program();
}
}
-
+
+void
+MIDISceneChanger::non_rt_deliver (boost::shared_ptr<MIDISceneChange> msc)
+{
+ if (!msc->active()) {
+ return;
+ }
+
+ uint8_t buf[4];
+ size_t cnt;
+ boost::shared_ptr<AsyncMIDIPort> aport = boost::dynamic_pointer_cast<AsyncMIDIPort>(output_port);
+
+ /* We use zero as the timestamp for these messages because we are in a
+ non-RT/process context. Using zero means "deliver them as early as
+ possible" (practically speaking, in the next process callback).
+ */
+
+ MIDIOutputActivity (); /* EMIT SIGNAL */
+
+ if ((cnt = msc->get_bank_msb_message (buf, sizeof (buf))) > 0) {
+ aport->write (buf, cnt, 0);
+
+ if ((cnt = msc->get_bank_lsb_message (buf, sizeof (buf))) > 0) {
+ aport->write (buf, cnt, 0);
+ }
+
+ last_delivered_bank = msc->bank();
+ }
+
+ if ((cnt = msc->get_program_message (buf, sizeof (buf))) > 0) {
+ aport->write (buf, cnt, 0);
+ last_delivered_program = msc->program();
+ }
+}
void
MIDISceneChanger::run (framepos_t start, framepos_t end)
{
- if (!output_port || recording()) {
+ if (!output_port || recording() || !_session.transport_rolling()) {
+ return;
+ }
+
+ Glib::Threads::RWLock::ReaderLock lm (scene_lock, Glib::Threads::TRY_LOCK);
+
+ if (!lm.locked()) {
return;
}
if (i->first >= end) {
break;
}
-
- deliver (mbuf, i->first - start, i->second);
+
+ rt_deliver (mbuf, i->first - start, i->second);
++i;
}
void
MIDISceneChanger::locate (framepos_t pos)
{
- Scenes::const_iterator i = scenes.upper_bound (pos);
+ boost::shared_ptr<MIDISceneChange> msc;
- if (i == scenes.end()) {
- return;
+ {
+ Glib::Threads::RWLock::ReaderLock lm (scene_lock);
+
+ if (scenes.empty()) {
+ return;
+ }
+
+ Scenes::const_iterator i = scenes.lower_bound (pos);
+
+ if (i != scenes.end()) {
+
+ if (i->first != pos) {
+ /* i points to first scene with position > pos, so back
+ * up, if possible.
+ */
+ if (i != scenes.begin()) {
+ --i;
+ } else {
+ return;
+ }
+ }
+ } else {
+ /* go back to the final scene and use it */
+ --i;
+ }
+
+ msc = i->second;
}
- if (i->second->program() != last_delivered_program || i->second->bank() != last_delivered_bank) {
- // MidiBuffer& mbuf (output_port->get_midi_buffer (end-start));
- // deliver (mbuf, i->first, i->second);
+ if (msc->program() != last_delivered_program || msc->bank() != last_delivered_bank) {
+ non_rt_deliver (msc);
}
-}
+}
void
-MIDISceneChanger::set_input_port (MIDI::Port* mp)
+MIDISceneChanger::set_input_port (boost::shared_ptr<MidiPort> mp)
{
- input_port = mp;
-
incoming_connections.drop_connections();
-
- if (input_port) {
-
+ input_port.reset ();
+
+ boost::shared_ptr<AsyncMIDIPort> async = boost::dynamic_pointer_cast<AsyncMIDIPort> (mp);
+
+ if (async) {
+
+ input_port = mp;
+
/* midi port is asynchronous. MIDI parsing will be carried out
* by the MIDI UI thread which will emit the relevant signals
* and thus invoke our callbacks as necessary.
*/
for (int channel = 0; channel < 16; ++channel) {
- input_port->parser()->channel_bank_change[channel].connect_same_thread (incoming_connections, boost::bind (&MIDISceneChanger::bank_change_input, this, _1, _2, channel));
- input_port->parser()->channel_program_change[channel].connect_same_thread (incoming_connections, boost::bind (&MIDISceneChanger::program_change_input, this, _1, _2, channel));
+ async->parser()->channel_bank_change[channel].connect_same_thread (incoming_connections, boost::bind (&MIDISceneChanger::bank_change_input, this, _1, _2, channel));
+ async->parser()->channel_program_change[channel].connect_same_thread (incoming_connections, boost::bind (&MIDISceneChanger::program_change_input, this, _1, _2, channel));
}
}
}
}
bool
-MIDISceneChanger::recording() const
+MIDISceneChanger::recording() const
{
return _session.transport_rolling() && _session.get_record_enabled();
}
void
-MIDISceneChanger::bank_change_input (MIDI::Parser& parser, unsigned short, int)
+ MIDISceneChanger::bank_change_input (MIDI::Parser& /*parser*/, unsigned short, int)
{
- if (!recording()) {
- return;
+ if (recording()) {
+ have_seen_bank_changes = true;
}
-
- last_bank_message_time = parser.get_timestamp ();
+ MIDIInputActivity (); /* EMIT SIGNAL */
}
void
last_program_message_time = time;
if (!recording()) {
- jump_to (input_port->channel (channel)->bank(), program);
+
+ MIDIInputActivity (); /* EMIT SIGNAL */
+
+ int bank = -1;
+ if (have_seen_bank_changes) {
+ bank = boost::dynamic_pointer_cast<AsyncMIDIPort>(input_port)->channel (channel)->bank();
+ }
+
+ jump_to (bank, program);
return;
}
Locations* locations (_session.locations ());
Location* loc;
bool new_mark = false;
- framecnt_t slop = (framecnt_t) floor ((Config->get_inter_scene_gap_msecs() / 1000.0) * _session.frame_rate());
/* check for marker at current location */
- loc = locations->mark_at (time, slop);
+ loc = locations->mark_at (time, Config->get_inter_scene_gap_frames());
if (!loc) {
/* create a new marker at the desired position */
-
+
std::string new_name;
if (!locations->next_available_name (new_name, _("Scene "))) {
std::cerr << "No new marker name available\n";
return;
}
-
+
loc = new Location (_session, time, time, new_name, Location::IsMark);
new_mark = true;
}
- unsigned short bank = input_port->channel (channel)->bank();
+ int bank = -1;
+ if (have_seen_bank_changes) {
+ bank = boost::dynamic_pointer_cast<AsyncMIDIPort>(input_port)->channel (channel)->bank();
+ }
+
+ MIDISceneChange* msc =new MIDISceneChange (channel, bank, program & 0x7f);
- MIDISceneChange* msc =new MIDISceneChange (loc->start(), channel, bank, program & 0x7f);
+ /* check for identical scene change so we can re-use color, if any */
+
+ Locations::LocationList copy (locations->list());
+
+ for (Locations::LocationList::const_iterator l = copy.begin(); l != copy.end(); ++l) {
+ boost::shared_ptr<MIDISceneChange> sc = boost::dynamic_pointer_cast<MIDISceneChange>((*l)->scene_change());
+
+ if (sc && (*sc.get()) == *msc) {
+ msc->set_color (sc->color ());
+ break;
+ }
+ }
loc->set_scene_change (boost::shared_ptr<MIDISceneChange> (msc));
-
+
/* this will generate a "changed" signal to be emitted by locations,
and we will call ::gather() to update our list of MIDI events.
*/
if (new_mark) {
locations->add (loc);
}
+
+ MIDIInputActivity (); /* EMIT SIGNAL */
}
void
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