triggerbox: more significant design clean-ups, and follow actions now work (basically)
This commit is contained in:
parent
8cea19dd25
commit
edbafd9f5b
@ -58,8 +58,9 @@ class LIBARDOUR_API Trigger : public PBD::Stateful {
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Stopped = 1,
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WaitingToStart = 2,
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Running = 3,
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WaitingToStop = 4,
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Stopping = 5
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WaitingForRetrigger = 4,
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WaitingToStop = 5,
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Stopping = 6
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};
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Trigger (size_t index, TriggerBox&);
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@ -131,7 +132,17 @@ class LIBARDOUR_API Trigger : public PBD::Stateful {
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ChangeTriggers = 0x8
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};
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bool maybe_compute_start_or_stop (Temporal::Beats const & start, Temporal::Beats const & end);
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enum RunType {
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RunEnd,
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RunStart,
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RunAll,
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RunNone,
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};
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RunType maybe_compute_next_transition (Temporal::Beats const & start, Temporal::Beats const & end);
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void set_next_trigger (int n);
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int next_trigger() const { return _next_trigger; }
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protected:
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TriggerBox& _box;
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@ -140,6 +151,7 @@ class LIBARDOUR_API Trigger : public PBD::Stateful {
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std::atomic<int> _bang;
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std::atomic<int> _unbang;
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size_t _index;
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int _next_trigger;
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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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@ -155,7 +167,7 @@ class LIBARDOUR_API AudioTrigger : public Trigger {
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AudioTrigger (size_t index, TriggerBox&);
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~AudioTrigger ();
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RunResult run (AudioBuffer&, uint32_t channel, pframes_t& nframes, pframes_t offset, bool first);
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int run (BufferSet&, pframes_t nframes, pframes_t offset, bool first);
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void set_length (timecnt_t const &);
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timecnt_t current_length() const;
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@ -168,7 +180,7 @@ class LIBARDOUR_API AudioTrigger : public Trigger {
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private:
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std::vector<Sample*> data;
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std::vector<samplecnt_t> read_index;
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samplecnt_t read_index;
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samplecnt_t data_length;
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void drop_data ();
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@ -212,13 +224,11 @@ class LIBARDOUR_API TriggerBox : public Processor
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Triggers all_triggers;
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/* These three are accessed (read/write) only from process() context */
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Triggers pending_on_triggers;
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Triggers pending_off_triggers;
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Triggers active_triggers;
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void drop_triggers ();
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void process_ui_trigger_requests ();
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void process_midi_trigger_requests (BufferSet&);
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void set_next_trigger (size_t n);
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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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@ -843,6 +843,7 @@ setup_enum_writer ()
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REGISTER_CLASS_ENUM (Trigger, Stopped);
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REGISTER_CLASS_ENUM (Trigger, WaitingToStart);
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REGISTER_CLASS_ENUM (Trigger, Running);
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REGISTER_CLASS_ENUM (Trigger, WaitingForRetrigger);
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REGISTER_CLASS_ENUM (Trigger, WaitingToStop);
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REGISTER_CLASS_ENUM (Trigger, Stopping);
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REGISTER (_TriggerState);
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@ -1,4 +1,5 @@
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#include <iostream>
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#include <cstdlib>
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#include <glibmm.h>
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@ -39,8 +40,9 @@ Trigger::Trigger (size_t n, TriggerBox& b)
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, _bang (0)
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, _unbang (0)
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, _index (n)
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, _launch_style (Loop)
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, _follow_action (Stop)
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, _next_trigger (-1)
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, _launch_style (Toggle)
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, _follow_action (NextTrigger)
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, _quantization (Temporal::BBT_Offset (0, 1, 0))
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{
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}
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@ -49,7 +51,6 @@ void
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Trigger::bang ()
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{
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_bang.fetch_add (1);
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std::cerr << "trigger " << index() << " banged to " << _bang.load() << std::endl;
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}
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void
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@ -123,9 +124,9 @@ Trigger::process_state_requests ()
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{
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State new_state = _requested_state.exchange (None);
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if (new_state == _state) {
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return;
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}
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if (new_state != None && new_state != _state) {
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 requested state %2\n", index(), enum_2_string (new_state)));
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switch (new_state) {
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case Stopped:
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@ -139,6 +140,7 @@ Trigger::process_state_requests ()
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default:
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break;
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}
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}
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/* now check bangs/unbangs */
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@ -148,6 +150,8 @@ Trigger::process_state_requests ()
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_bang.fetch_sub (1);
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 handling bang with state = %2\n", index(), enum_2_string (_state)));
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switch (_state) {
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case None:
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abort ();
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@ -156,14 +160,14 @@ Trigger::process_state_requests ()
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case Running:
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switch (launch_style()) {
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case Loop:
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 retrigger\n", index()));
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retrigger ();
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 %2 -> %3\n", index(), enum_2_string (Running), enum_2_string (WaitingForRetrigger)));
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_state = WaitingForRetrigger;
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break;
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case Gate:
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case Toggle:
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case Repeat:
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 %2 -> %3\n", index(), enum_2_string (Running), enum_2_string (Stopped)));
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_state = Stopped;
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_state = WaitingToStop;
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}
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break;
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@ -173,11 +177,8 @@ Trigger::process_state_requests ()
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break;
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case WaitingToStart:
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break;
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case WaitingToStop:
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break;
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case WaitingForRetrigger:
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case Stopping:
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break;
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}
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@ -194,34 +195,66 @@ Trigger::process_state_requests ()
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}
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}
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bool
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Trigger::maybe_compute_start_or_stop (Temporal::Beats const & start, Temporal::Beats const & end)
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Trigger::RunType
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Trigger::maybe_compute_next_transition (Temporal::Beats const & start, Temporal::Beats const & end)
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{
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/* In these states, we are not waiting for a transition */
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switch (_state) {
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case Stopped:
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return RunNone;
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case Running:
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return RunAll;
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case Stopping:
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return RunAll;
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default:
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break;
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}
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timepos_t ev_time (Temporal::BeatTime);
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if (_quantization.bars == 0) {
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ev_time = timepos_t (start.snap_to (Temporal::Beats (_quantization.beats, _quantization.ticks)));
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 quantized with %5 start at %2, sb %3 eb %4\n", index(), ev_time, start, end, _quantization));
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 quantized with %5 start at %2, sb %3 eb %4\n", index(), ev_time.beats(), start, end, _quantization));
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} else {
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/* XXX not yet handled */
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}
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if (ev_time.beats() >= start && ev_time < end) {
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bang_samples = ev_time.samples();
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bang_beats = ev_time.beats ();
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if (_state == WaitingToStop) {
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_state = Stopping;
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} else {
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return RunEnd;
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} else if (_state == WaitingToStart) {
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retrigger ();
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_state = Running;
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return RunStart;
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} else if (_state == WaitingForRetrigger) {
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retrigger ();
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_state = Running;
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return RunAll;
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}
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} else {
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if (_state == WaitingForRetrigger) {
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/* retrigger time has not been reached, just continue
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to play normally until then.
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*/
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return RunAll;
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}
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}
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return true;
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return RunNone;
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}
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return false;
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void
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Trigger::set_next_trigger (int n)
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{
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_next_trigger = n;
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 : set %2 as next\n", index(), n));
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}
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/*--------------------*/
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@ -229,6 +262,7 @@ Trigger::maybe_compute_start_or_stop (Temporal::Beats const & start, Temporal::B
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AudioTrigger::AudioTrigger (size_t n, TriggerBox& b)
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: Trigger (n, b)
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, data (0)
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, read_index (0)
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, data_length (0)
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{
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}
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@ -261,8 +295,6 @@ AudioTrigger::set_length (timecnt_t const & newlen)
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return;
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}
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std::cerr << " sl to " << newlen << " from " << _region->length() << endl;
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/* offline stretch */
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/* study */
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@ -281,7 +313,6 @@ AudioTrigger::set_length (timecnt_t const & newlen)
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} else {
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/* XXX what to use for position ??? */
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const timecnt_t dur = TempoMap::use()->convert_duration (newlen, timepos_t (0), AudioTime);
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std::cerr << "new dur = " << dur << " S " << dur.samples() << " vs " << data_length << endl;
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new_ratio = (double) dur.samples() / data_length;
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}
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@ -428,7 +459,6 @@ AudioTrigger::load_data (boost::shared_ptr<AudioRegion> ar)
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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[data_length]);
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read_index.push_back (0);
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ar->read (data[n], 0, data_length, n);
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}
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} catch (...) {
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@ -442,63 +472,69 @@ AudioTrigger::load_data (boost::shared_ptr<AudioRegion> ar)
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void
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AudioTrigger::retrigger ()
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{
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for (std::vector<samplecnt_t>::iterator ri = read_index.begin(); ri != read_index.end(); ++ri) {
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(*ri) = 0;
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}
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read_index = 0;
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}
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Trigger::RunResult
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AudioTrigger::run (AudioBuffer& buf, uint32_t channel, pframes_t& nframes, pframes_t dest_offset, bool first)
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int
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AudioTrigger::run (BufferSet& bufs, pframes_t nframes, pframes_t dest_offset, bool first)
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{
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if (read_index[channel] >= data_length) {
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return RemoveTrigger;
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}
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boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(_region);
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if (!active()) {
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return RemoveTrigger;
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}
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assert (ar);
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assert (active());
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while (nframes) {
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channel %= data.size();
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pframes_t this_read = (pframes_t) std::min ((samplecnt_t) nframes, (data_length - read_index));
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pframes_t nf = (pframes_t) std::min ((samplecnt_t) nframes, (data_length - read_index[channel]));
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Sample* src = data[channel] + read_index[channel];
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for (size_t chn = 0; chn < ar->n_channels(); ++chn) {
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 running with nf %2\n", index(), nf));
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size_t channel = chn % data.size();
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Sample* src = data[channel] + read_index;
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AudioBuffer& buf (bufs.get_audio (chn));
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if (first) {
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buf.read_from (src, nf, dest_offset);
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buf.read_from (src, this_read, dest_offset);
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} else {
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buf.accumulate_from (src, nf);
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buf.accumulate_from (src, this_read, dest_offset);
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}
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}
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read_index[channel] += nf;
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read_index += this_read;
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if ((nframes - nf) != 0) {
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/* did not get all samples, must have reached the end, figure out what do to */
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nframes = nf;
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return at_end ();
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}
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if (read_index >= data_length) {
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return Relax;
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}
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/* We reached the end */
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Trigger::RunResult
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AudioTrigger::at_end ()
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{
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switch (launch_style()) {
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case Trigger::Loop:
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if (_launch_style == Loop) {
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nframes -= this_read;
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dest_offset += this_read;
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 was reached end, but set to loop, so retrigger\n", index()));
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retrigger ();
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return ReadMore;
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default:
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/* and go around again */
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continue;
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} else {
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if (this_read < nframes) {
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for (size_t chn = 0; chn < ar->n_channels(); ++chn) {
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size_t channel = chn % data.size();
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AudioBuffer& buf (bufs.get_audio (channel));
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 short fill, do silent fill\n", index()));
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buf.silence (nframes - this_read, dest_offset + this_read);
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}
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}
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_state = Stopped;
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 was reached end, now stopped\n", index()));
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break;
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}
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if (follow_action() == Stop) {
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return RunResult (RemoveTrigger|FillSilence);
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}
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return RunResult (RemoveTrigger|ChangeTriggers|FillSilence);
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nframes -= this_read;
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}
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return 0;
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}
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/**************/
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@ -590,8 +626,8 @@ TriggerBox::stop_all ()
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{
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/* XXX needs to be done with mutex or via thread-safe queue */
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for (Triggers::iterator t = active_triggers.begin(); t != active_triggers.end(); ++t) {
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(*t)->stop ();
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for (size_t n = 0; n < all_triggers.size(); ++n) {
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all_triggers[n]->stop ();
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}
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}
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@ -687,7 +723,6 @@ TriggerBox::process_midi_trigger_requests (BufferSet& bufs)
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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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if (start_sample < 0) {
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/* we can't do anything under these conditions (related to
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latency compensation
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@ -697,7 +732,7 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
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process_midi_trigger_requests (bufs);
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size_t run_cnt = 0;
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std::vector<size_t> to_run;
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for (size_t n = 0; n < all_triggers.size(); ++n) {
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all_triggers[n]->process_state_requests ();
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@ -710,14 +745,15 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
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case Trigger::Running:
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case Trigger::WaitingToStart:
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case Trigger::WaitingToStop:
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case Trigger::WaitingForRetrigger:
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case Trigger::Stopping:
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run_cnt++;
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to_run.push_back (n);
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default:
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break;
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}
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}
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if (run_cnt == 0) {
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if (to_run.empty()) {
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/* this saves us from the cost of the tempo map lookups.
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XXX if these were passed in to ::run(), we could possibly
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skip this condition.
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@ -736,55 +772,37 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
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Temporal::Beats start_beats (start.beats());
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Temporal::Beats end_beats (end.beats());
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Temporal::TempoMap::SharedPtr tmap (Temporal::TempoMap::use());
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bool will_start = false;
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bool will_stop = false;
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for (size_t n = 0; n < all_triggers.size(); ++n) {
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}
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size_t max_chans = 0;
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Trigger::RunResult rr;
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bool first = false;
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/* Now actually run all currently active triggers */
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for (size_t n = 0; n < all_triggers.size(); ++n) {
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for (size_t n = 0; n < to_run.size(); ++n) {
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Trigger& trigger (*all_triggers[n]);
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Trigger& trigger (*all_triggers[to_run[n]]);
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if (trigger.state() < Trigger::WaitingToStart) {
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continue;
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}
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DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 might run, state %2\n", trigger.index(), enum_2_string (trigger.state())));
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assert (trigger.state() >= Trigger::WaitingToStart);
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boost::shared_ptr<Region> r = trigger.region();
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sampleoffset_t dest_offset;
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pframes_t trigger_samples;
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Trigger::RunType rt;
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bool was_waiting_to_start = (trigger.state() == Trigger::WaitingToStart);
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switch (trigger.state()) {
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case Trigger::None:
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case Trigger::Stopped:
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abort ();
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break;
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case Trigger::Running:
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case Trigger::Stopping:
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break;
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case Trigger::WaitingToStop:
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will_stop = trigger.maybe_compute_start_or_stop (start_beats, end_beats);
|
||||
break;
|
||||
|
||||
case Trigger::WaitingToStart:
|
||||
will_start = trigger.maybe_compute_start_or_stop (start_beats, end_beats);
|
||||
DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 waiting to start, will start? %2\n", trigger.index(), will_start));
|
||||
case Trigger::WaitingForRetrigger:
|
||||
rt = trigger.maybe_compute_next_transition (start_beats, end_beats);
|
||||
break;
|
||||
default:
|
||||
rt = Trigger::RunAll;
|
||||
}
|
||||
|
||||
if (will_stop) {
|
||||
if (rt == Trigger::RunEnd) {
|
||||
|
||||
|
||||
/* trigger will reach it's end somewhere within this
|
||||
* process cycle, so compute the number of samples it
|
||||
@ -794,7 +812,7 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
|
||||
trigger_samples = nframes - (trigger.bang_samples - start_sample);
|
||||
dest_offset = 0;
|
||||
|
||||
} else if (will_start) {
|
||||
} else if (rt == Trigger::RunStart) {
|
||||
|
||||
/* trigger will start somewhere within this process
|
||||
* cycle. Compute the sample offset where any audio
|
||||
@ -804,7 +822,7 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
|
||||
dest_offset = std::max (samplepos_t (0), trigger.bang_samples - start_sample);
|
||||
trigger_samples = nframes - dest_offset;
|
||||
|
||||
} else {
|
||||
} else if (rt == Trigger::RunAll) {
|
||||
|
||||
/* trigger is just running normally, and will fill
|
||||
* buffers entirely.
|
||||
@ -812,6 +830,13 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
|
||||
|
||||
dest_offset = 0;
|
||||
trigger_samples = nframes;
|
||||
|
||||
} else if (rt == Trigger::RunNone) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (was_waiting_to_start) {
|
||||
set_next_trigger (trigger.index());
|
||||
}
|
||||
|
||||
AudioTrigger* at = dynamic_cast<AudioTrigger*> (&trigger);
|
||||
@ -820,46 +845,34 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
|
||||
|
||||
boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (r);
|
||||
const size_t nchans = ar->n_channels ();
|
||||
pframes_t nf = trigger_samples;
|
||||
|
||||
max_chans = std::max (max_chans, nchans);
|
||||
|
||||
DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 run with ts %2 do %3\n", trigger.index(), trigger_samples, dest_offset));
|
||||
|
||||
read_more:
|
||||
for (uint32_t chan = 0; chan < nchans; ++chan) {
|
||||
|
||||
/* we assume the result will be the same for all channels */
|
||||
|
||||
AudioBuffer& buf (bufs.get_audio (chan));
|
||||
|
||||
rr = at->run (buf, chan, nf, dest_offset, first);
|
||||
|
||||
/* nf is now the number of samples that were
|
||||
* actually processed/generated/written
|
||||
*/
|
||||
|
||||
if (rr & Trigger::FillSilence) {
|
||||
buf.silence (trigger_samples - nf, nf + dest_offset);
|
||||
}
|
||||
}
|
||||
at->run (bufs, trigger_samples, dest_offset, first);
|
||||
|
||||
first = false;
|
||||
|
||||
if (rr == Trigger::ReadMore) {
|
||||
trigger_samples -= nf;
|
||||
goto read_more;
|
||||
}
|
||||
|
||||
} else {
|
||||
|
||||
/* XXX MIDI triggers to be implemented */
|
||||
|
||||
}
|
||||
|
||||
if (rr & Trigger::ChangeTriggers) {
|
||||
/* XXX do this! */
|
||||
std::cerr << "Should change triggers!\n";
|
||||
if (trigger.state() == Trigger::Stopped) {
|
||||
|
||||
if (trigger.follow_action() != Trigger::Stop) {
|
||||
|
||||
int nxt = trigger.next_trigger();
|
||||
|
||||
if (nxt >= 0 && nxt < all_triggers.size() && !all_triggers[nxt]->active()) {
|
||||
DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 switching to %2\n", trigger.index(), nxt));
|
||||
/* start it up */
|
||||
all_triggers[nxt]->bang ();
|
||||
all_triggers[nxt]->process_state_requests ();
|
||||
/* make sure we run it this process cycle */
|
||||
to_run.push_back (nxt);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -868,6 +881,128 @@ TriggerBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
|
||||
bufs.set_count (cc);
|
||||
}
|
||||
|
||||
void
|
||||
TriggerBox::set_next_trigger (size_t current)
|
||||
{
|
||||
size_t n;
|
||||
size_t runnable;
|
||||
|
||||
for (size_t n = 0; n < all_triggers.size(); ++n) {
|
||||
if (all_triggers[n]->region()) {
|
||||
runnable++;
|
||||
}
|
||||
}
|
||||
|
||||
switch (all_triggers[current]->follow_action()) {
|
||||
case Trigger::Stop:
|
||||
return;
|
||||
case Trigger::QueuedTrigger:
|
||||
/* XXX implement me */
|
||||
return;
|
||||
default:
|
||||
if (runnable == 1) {
|
||||
all_triggers[current]->set_next_trigger (current);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
switch (all_triggers[current]->follow_action()) {
|
||||
case Trigger::NextTrigger:
|
||||
n = current;
|
||||
while (true) {
|
||||
++n;
|
||||
|
||||
if (n >= all_triggers.size()) {
|
||||
n = 0;
|
||||
}
|
||||
|
||||
if (n == current) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (all_triggers[n]->region() && !all_triggers[n]->active()) {
|
||||
all_triggers[current]->set_next_trigger (n);
|
||||
return;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case Trigger::PrevTrigger:
|
||||
n = current;
|
||||
while (true) {
|
||||
if (n == 0) {
|
||||
n = all_triggers.size() - 1;
|
||||
} else {
|
||||
n -= 1;
|
||||
}
|
||||
|
||||
if (n == current) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (all_triggers[n]->region() && !all_triggers[n]->active ()) {
|
||||
all_triggers[current]->set_next_trigger (n);
|
||||
return;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case Trigger::FirstTrigger:
|
||||
for (n = 0; n < all_triggers.size(); ++n) {
|
||||
if (all_triggers[n]->region() && !all_triggers[n]->active ()) {
|
||||
all_triggers[current]->set_next_trigger (n);
|
||||
return;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case Trigger::LastTrigger:
|
||||
for (n = all_triggers.size() - 1; n >= 0; --n) {
|
||||
if (all_triggers[n]->region() && !all_triggers[n]->active ()) {
|
||||
all_triggers[current]->set_next_trigger (n);
|
||||
return;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case Trigger::AnyTrigger:
|
||||
while (true) {
|
||||
n = random() % all_triggers.size();
|
||||
if (!all_triggers[n]->region()) {
|
||||
continue;
|
||||
}
|
||||
if (all_triggers[n]->active()) {
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
}
|
||||
all_triggers[current]->set_next_trigger (n);
|
||||
return;
|
||||
|
||||
case Trigger::OtherTrigger:
|
||||
while (true) {
|
||||
n = random() % all_triggers.size();
|
||||
if ((size_t) n == current) {
|
||||
continue;
|
||||
}
|
||||
if (!all_triggers[n]->region()) {
|
||||
continue;
|
||||
}
|
||||
if (all_triggers[n]->active()) {
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
}
|
||||
all_triggers[current]->set_next_trigger (n);
|
||||
return;
|
||||
|
||||
/* NOTREACHED */
|
||||
case Trigger::Stop:
|
||||
case Trigger::QueuedTrigger:
|
||||
break;
|
||||
|
||||
}
|
||||
|
||||
all_triggers[current]->set_next_trigger (current);
|
||||
}
|
||||
|
||||
XMLNode&
|
||||
TriggerBox::get_state (void)
|
||||
|
Loading…
Reference in New Issue
Block a user