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fix bad transition problem in transportFSM when slowing to a stop that is then reversed

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This commit is contained in:
Paul Davis 2021-05-08 17:58:40 -06:00
parent 66bc15f8c5
commit 8b1df3e083
2 changed files with 18 additions and 9 deletions
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4
libs/ardour/ardour/transport_fsm.h
View file

@ -168,7 +168,7 @@ struct TransportFSM
void start_locate_while_stopped (Event const &) const; void start_locate_while_stopped (Event const &) const;
void interrupt_locate (Event const &) const; void interrupt_locate (Event const &) const;
void start_declick_for_locate (Event const &); void start_declick_for_locate (Event const &);
void set_speed (Event const &); bool set_speed (Event const &);
/* guards */ /* guards */
@ -216,7 +216,7 @@ struct TransportFSM
void set_roll_after (bool) const; void set_roll_after (bool) const;
bool compute_should_roll (LocateTransportDisposition) const; bool compute_should_roll (LocateTransportDisposition) const;
int compute_transport_speed () const; int compute_transport_speed () const;
void maybe_reset_speed (); bool maybe_reset_speed ();
}; };
} /* end namespace ARDOUR */ } /* end namespace ARDOUR */

19
libs/ardour/transport_fsm.cc
View file

@ -427,9 +427,10 @@ TransportFSM::process_event (Event& ev, bool already_deferred, bool& deferred)
start_locate_after_declick (); start_locate_after_declick ();
break; break;
case DeclickToStop: case DeclickToStop:
maybe_reset_speed (); if (!maybe_reset_speed ()) {
transition (Stopped); transition (Stopped);
/* transport already stopped */ /* transport already stopped */
}
break; break;
default: default:
bad_transition (ev); return false; bad_transition (ev); return false;
@ -497,13 +498,15 @@ TransportFSM::stop_playback (Event const & s)
api->stop_transport (s.abort_capture, s.clear_state); api->stop_transport (s.abort_capture, s.clear_state);
} }
void bool
TransportFSM::maybe_reset_speed () TransportFSM::maybe_reset_speed ()
{ {
bool state_changed = false;
if (Config->get_reset_default_speed_on_stop()) { if (Config->get_reset_default_speed_on_stop()) {
if (most_recently_requested_speed != 1.0) { if (most_recently_requested_speed != 1.0) {
set_speed (Event (1.0, false)); state_changed = set_speed (Event (1.0, false));
} }
} else { } else {
@ -516,9 +519,11 @@ TransportFSM::maybe_reset_speed ()
*/ */
if (most_recently_requested_speed != _default_speed) { if (most_recently_requested_speed != _default_speed) {
set_speed (Event (_default_speed, false)); state_changed = set_speed (Event (_default_speed, false));
} }
} }
return state_changed;
} }
void void
@ -753,7 +758,7 @@ TransportFSM::compute_transport_speed () const
return 1; return 1;
} }
void bool
TransportFSM::set_speed (Event const & ev) TransportFSM::set_speed (Event const & ev)
{ {
assert (ev.speed != 0.0); assert (ev.speed != 0.0);
@ -818,7 +823,11 @@ TransportFSM::set_speed (Event const & ev)
transition (WaitingForLocate); transition (WaitingForLocate);
start_locate_while_stopped (lev); start_locate_while_stopped (lev);
} }
return true;
} }
return false;
} }
bool bool