triggerbox: lots of design changes and implementation tweaks. Gate launch style now works
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50d68a6a34
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@ -19,6 +19,7 @@
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#ifndef __ardour_triggerbox_h__
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#define __ardour_triggerbox_h__
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#include <map>
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#include <vector>
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#include <string>
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#include <exception>
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@ -42,10 +43,12 @@ class TriggerBox;
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class LIBARDOUR_API Trigger {
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public:
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Trigger();
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Trigger (boost::shared_ptr<Region>);
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virtual ~Trigger() {}
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virtual void bang (TriggerBox&, Temporal::Beats const &, samplepos_t) = 0;
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virtual void unbang (TriggerBox&, Temporal::Beats const &, samplepos_t) = 0;
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bool running() const { return _running; }
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enum LaunchStyle {
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@ -72,10 +75,17 @@ class LIBARDOUR_API Trigger {
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FollowAction follow_action() const { return _follow_action; }
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void set_follow_action (FollowAction);
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virtual int set_region (boost::shared_ptr<Region>) = 0;
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boost::shared_ptr<Region> region() const { return _region; }
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protected:
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bool _running;
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bool _stop_requested;
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LaunchStyle _launch_style;
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FollowAction _follow_action;
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boost::shared_ptr<Region> _region;
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void set_region_internal (boost::shared_ptr<Region>);
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};
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class LIBARDOUR_API AudioTrigger : public Trigger {
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@ -84,13 +94,19 @@ class LIBARDOUR_API AudioTrigger : public Trigger {
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~AudioTrigger ();
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void bang (TriggerBox&, Temporal::Beats const & , samplepos_t);
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void unbang (TriggerBox&, Temporal::Beats const & , samplepos_t);
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Sample* run (uint32_t channel, pframes_t& nframes, samplepos_t start_frame, samplepos_t end_frame, bool& need_butler);
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int set_region (boost::shared_ptr<Region>);
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private:
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boost::shared_ptr<AudioRegion> region;
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std::vector<Sample*> data;
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std::vector<samplecnt_t> read_index;
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samplecnt_t length;
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void drop_data ();
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int load_data (boost::shared_ptr<AudioRegion>);
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};
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class LIBARDOUR_API TriggerBox : public Processor
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@ -103,6 +119,10 @@ class LIBARDOUR_API TriggerBox : public Processor
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bool can_support_io_configuration (const ChanCount& in, ChanCount& out);
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bool configure_io (ChanCount in, ChanCount out);
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typedef std::vector<Trigger*> Triggers;
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Trigger* trigger (Triggers::size_type);
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bool queue_trigger (Trigger*);
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void add_trigger (Trigger*);
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@ -112,19 +132,18 @@ class LIBARDOUR_API TriggerBox : public Processor
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private:
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PBD::RingBuffer<Trigger*> _trigger_queue;
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typedef std::vector<Trigger*> Triggers;
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Triggers active_triggers;
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Glib::Threads::Mutex trigger_lock;
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Glib::Threads::RWLock trigger_lock;
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Triggers all_triggers;
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void drop_triggers ();
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void process_trigger_requests (Temporal::Beats const &, samplepos_t);
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void note_on (int note_number, int velocity);
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void note_off (int note_number, int velocity);
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/* XXX for initial testing only */
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boost::shared_ptr<Source> the_source;
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boost::shared_ptr<AudioRegion> the_region;
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AudioTrigger* the_trigger;
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typedef std::map<uint8_t,Triggers::size_type> MidiTriggerMap;
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MidiTriggerMap midi_trigger_map;
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};
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} // namespace ARDOUR
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@ -1,5 +1,7 @@
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#include <iostream>
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#include "pbd/failed_constructor.h"
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#include "ardour/audioregion.h"
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#include "ardour/audio_buffer.h"
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#include "ardour/midi_buffer.h"
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@ -17,9 +19,16 @@ TriggerBox::TriggerBox (Session& s)
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: Processor (s, _("TriggerBox"), Temporal::BeatTime)
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, _trigger_queue (1024)
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{
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PropertyList plist;
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the_source.reset (new SndFileSource (_session, "/music/misc/La_Voz_Del_Rio.wav", 0, Source::Flag (0)));
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/* default number of possible triggers. call ::add_trigger() to increase */
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all_triggers.resize (16, 0);
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midi_trigger_map.insert (midi_trigger_map.end(), std::make_pair (uint8_t (60), 0));
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boost::shared_ptr<Source> the_source (new SndFileSource (_session, "/music/misc/La_Voz_Del_Rio.wav", 0, Source::Flag (0)));
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PropertyList plist;
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plist.add (Properties::start, 0);
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plist.add (Properties::length, the_source->length ());
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@ -27,18 +36,39 @@ TriggerBox::TriggerBox (Session& s)
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plist.add (Properties::layer, 0);
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plist.add (Properties::layering_index, 0);
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boost::shared_ptr<Region> r = RegionFactory::create (the_source, plist, false);
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the_region = boost::dynamic_pointer_cast<AudioRegion> (r);
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boost::shared_ptr<Region> the_region (RegionFactory::create (the_source, plist, false));
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/* XXX the_region/trigger will be looked up in a
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std::map<MIDI::byte,Trigger>
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*/
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the_trigger = new AudioTrigger (the_region);
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add_trigger (the_trigger);
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all_triggers[0] = new AudioTrigger (boost::dynamic_pointer_cast<AudioRegion> (the_region));
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}
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TriggerBox::~TriggerBox ()
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{
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drop_triggers ();
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}
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void
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TriggerBox::drop_triggers ()
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{
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Glib::Threads::RWLock::WriterLock lm (trigger_lock);
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for (Triggers::iterator t = all_triggers.begin(); t != all_triggers.end(); ++t) {
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if (*t) {
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delete *t;
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(*t) = 0;
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}
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}
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}
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Trigger*
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TriggerBox::trigger (Triggers::size_type n)
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{
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Glib::Threads::RWLock::ReaderLock lm (trigger_lock);
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if (n >= all_triggers.size()) {
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return 0;
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}
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return all_triggers[n];
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}
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bool
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@ -56,16 +86,14 @@ TriggerBox::can_support_io_configuration (const ChanCount& in, ChanCount& out)
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bool
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TriggerBox::configure_io (ChanCount in, ChanCount out)
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{
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cerr << "TB: " << in << " / " << out << endl;
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return Processor::configure_io (in, out);
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}
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void
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TriggerBox::add_trigger (Trigger* trigger)
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{
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Glib::Threads::Mutex::Lock lm (trigger_lock);
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Glib::Threads::RWLock::WriterLock lm (trigger_lock);
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all_triggers.push_back (trigger);
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cerr << "Now have " << all_triggers.size() << " of all possible triggers\n";
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}
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bool
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@ -74,29 +102,86 @@ TriggerBox::queue_trigger (Trigger* trigger)
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return _trigger_queue.write (&trigger, 1) == 1;
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}
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void
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TriggerBox::process_trigger_requests (Temporal::Beats const & beats_now, samplepos_t samples_now)
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{
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/* if there are any triggers queued, make them active
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*/
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RingBuffer<Trigger*>::rw_vector vec;
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_trigger_queue.get_read_vector (&vec);
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for (uint32_t n = 0; n < vec.len[0]; ++n) {
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Trigger* t = vec.buf[0][n];
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t->bang (*this, beats_now, samples_now);
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active_triggers.push_back (t);
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}
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for (uint32_t n = 0; n < vec.len[1]; ++n) {
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Trigger* t = vec.buf[1][n];
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t->bang (*this, beats_now, samples_now);
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active_triggers.push_back (t);
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}
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_trigger_queue.increment_read_idx (vec.len[0] + vec.len[1]);
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}
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void
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TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_sample, double speed, pframes_t nframes, bool result_required)
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{
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samplepos_t next_beat = 0;
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Temporal::Beats beats_now;
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process_trigger_requests (beats_now, start_sample);
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/* check MIDI port input buffers for triggers */
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for (BufferSet::midi_iterator mi = bufs.midi_begin(); mi != bufs.midi_end(); ++mi) {
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MidiBuffer& mb (*mi);
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for (MidiBuffer::iterator ev = mb.begin(); ev != mb.end(); ++ev) {
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if (!(*ev).is_note()) {
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continue;
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}
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MidiTriggerMap::iterator mt = midi_trigger_map.find ((*ev).note());
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Trigger* t = 0;
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if (mt != midi_trigger_map.end()) {
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assert (mt->second < all_triggers.size());
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t = all_triggers[mt->second];
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if (!t) {
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continue;
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}
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}
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if ((*ev).is_note_on()) {
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if (!the_trigger->running()) {
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active_triggers.push_back (the_trigger);
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if (!t->running()) {
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active_triggers.push_back (t);
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}
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t->bang (*this, beats_now, start_sample);
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} else if ((*ev).is_note_off()) {
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if (t->running() && t->launch_style() == Trigger::Gate) {
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t->unbang (*this, beats_now, start_sample);
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}
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the_trigger->bang (*this, beats_now, start_sample);
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}
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}
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}
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if (active_triggers.empty()) {
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/* nothing to do */
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return;
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}
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/* get tempo map */
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/* find offset to next bar * and beat start
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@ -112,34 +197,9 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
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//run_beats = true;
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//}
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/* if there are any triggers queued, make them active
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*/
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RingBuffer<Trigger*>::rw_vector vec;
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_trigger_queue.get_read_vector (&vec);
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for (uint32_t n = 0; n < vec.len[0]; ++n) {
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Trigger* t = vec.buf[0][n];
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t->bang (*this, beats_now, start_sample);
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active_triggers.push_back (t);
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}
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for (uint32_t n = 0; n < vec.len[1]; ++n) {
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Trigger* t = vec.buf[1][n];
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t->bang (*this, beats_now, start_sample);
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active_triggers.push_back (t);
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}
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_trigger_queue.increment_read_idx (vec.len[0] + vec.len[1]);
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bool err = false;
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const size_t nchans = the_region->n_channels ();
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bool need_butler = false;
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for (uint32_t chan = 0; chan < nchans; ++chan) {
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AudioBuffer& buf = bufs.get_audio (chan);
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buf.silence (nframes, 0);
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}
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size_t max_chans = 0;
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for (Triggers::iterator t = active_triggers.begin(); !err && t != active_triggers.end(); ++t) {
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@ -149,6 +209,10 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
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continue;
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}
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boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (at->region());
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const size_t nchans = ar->n_channels ();
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max_chans = std::max (max_chans, nchans);
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for (uint32_t chan = 0; !err && chan < nchans; ++chan) {
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AudioBuffer& buf = bufs.get_audio (chan);
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@ -158,7 +222,6 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
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if (!data) {
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/* XXX need to delete the trigger/put it back in the pool */
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cerr << "trigger complete\n";
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t = active_triggers.erase (t);
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err = true;
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} else {
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@ -175,7 +238,7 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
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}
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}
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ChanCount cc (DataType::AUDIO, nchans);
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ChanCount cc (DataType::AUDIO, max_chans);
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cc.set_midi (bufs.count().n_midi());
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bufs.set_count (cc);
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}
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@ -192,33 +255,46 @@ TriggerBox::set_state (const XMLNode&, int version)
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return 0;
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}
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/*--------------------*/
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Trigger::Trigger ()
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Trigger::Trigger (boost::shared_ptr<Region> r)
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: _running (false)
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, _launch_style (Loop)
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, _stop_requested (false)
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, _launch_style (Gate)
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, _follow_action (Stop)
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, _region (r)
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{
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}
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void
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Trigger::set_follow_action (FollowAction f)
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{
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_follow_action = f;
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}
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void
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Trigger::set_launch_style (LaunchStyle l)
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{
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_launch_style = l;
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}
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void
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Trigger::set_region_internal (boost::shared_ptr<Region> r)
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{
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_region = r;
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}
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/*--------------------*/
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AudioTrigger::AudioTrigger (boost::shared_ptr<AudioRegion> r)
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: region (r)
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: Trigger (r)
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, data (0)
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, length (0)
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{
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/* XXX catch region going away */
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const uint32_t nchans = region->n_channels();
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length = region->length_samples();
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for (uint32_t n = 0; n < nchans; ++n) {
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data.push_back (new Sample[length]);;
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read_index.push_back (0);
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region->read (data[n], 0, length, n);
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if (load_data (r)) {
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throw failed_constructor ();
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}
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}
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@ -229,6 +305,56 @@ AudioTrigger::~AudioTrigger ()
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}
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}
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int
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AudioTrigger::set_region (boost::shared_ptr<Region> r)
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{
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boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (r);
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if (!ar) {
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return -1;
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}
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set_region_internal (r);
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if (load_data (ar)) {
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return -1;
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}
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return 0;
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}
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void
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AudioTrigger::drop_data ()
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{
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for (uint32_t n = 0; n < data.size(); ++n) {
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delete [] data[n];
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}
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data.clear ();
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}
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int
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AudioTrigger::load_data (boost::shared_ptr<AudioRegion> ar)
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{
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const uint32_t nchans = ar->n_channels();
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length = ar->length_samples();
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drop_data ();
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try {
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for (uint32_t n = 0; n < nchans; ++n) {
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data.push_back (new Sample[length]);
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read_index.push_back (0);
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ar->read (data[n], 0, length, n);
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}
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} catch (...) {
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drop_data ();
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return -1;
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}
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return 0;
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}
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void
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AudioTrigger::bang (TriggerBox& /*proc*/, Temporal::Beats const &, samplepos_t)
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{
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@ -243,6 +369,12 @@ AudioTrigger::bang (TriggerBox& /*proc*/, Temporal::Beats const &, samplepos_t)
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_running = true;
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}
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void
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AudioTrigger::unbang (TriggerBox& /*proc*/, Temporal::Beats const &, samplepos_t)
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{
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_stop_requested = true;
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}
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Sample*
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AudioTrigger::run (uint32_t channel, pframes_t& nframes, samplepos_t /*start_sample*/, samplepos_t /*end_sample*/, bool& /* need_butler */)
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{
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@ -251,6 +383,14 @@ AudioTrigger::run (uint32_t channel, pframes_t& nframes, samplepos_t /*start_sam
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}
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if (read_index[channel] >= length) {
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_running = false;
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return 0;
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}
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if (_stop_requested) {
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/* XXX need fade out machinery */
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_running = false;
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_stop_requested = false;
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return 0;
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}
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