diff options
author | Robin Gareus <robin@gareus.org> | 2017-10-29 18:32:17 +0100 |
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committer | Robin Gareus <robin@gareus.org> | 2017-10-29 20:04:03 +0100 |
commit | 6e118448890222518cd150283b31799cd3a7a798 (patch) | |
tree | 9895cda4302fee77855d22e9ce8fef3eb14b37e0 /libs/ardour/session_transport.cc | |
parent | 927788a0b0bf6a621e7cee60365f4e8cbd67d829 (diff) |
Quick hack to test engine vari-speed (1/2)
Diffstat (limited to 'libs/ardour/session_transport.cc')
-rw-r--r-- | libs/ardour/session_transport.cc | 43 |
1 files changed, 28 insertions, 15 deletions
diff --git a/libs/ardour/session_transport.cc b/libs/ardour/session_transport.cc index e7475ffc2c..b777097e98 100644 --- a/libs/ardour/session_transport.cc +++ b/libs/ardour/session_transport.cc @@ -323,6 +323,7 @@ Session::realtime_stop (bool abort, bool clear_state) _transport_speed = 0; _target_transport_speed = 0; + _engine_speed = 1.0; g_atomic_int_set (&_playback_load, 100); g_atomic_int_set (&_capture_load, 100); @@ -1373,31 +1374,41 @@ Session::set_transport_speed (double speed, samplepos_t destination_sample, bool DEBUG_TRACE (DEBUG::Transport, string_compose ("@ %5 Set transport speed to %1, abort = %2 clear_state = %3, current = %4 as_default %6\n", speed, abort, clear_state, _transport_speed, _transport_sample, as_default)); - if (_transport_speed == speed) { + /* max speed is somewhat arbitrary but based on guestimates regarding disk i/o capability + and user needs. We really need CD-style "skip" playback for ffwd and rewind. + */ + + if (speed > 0) { + speed = min (8.0, speed); + } else if (speed < 0) { + speed = max (-8.0, speed); + } + + double new_engine_speed = 1.0; + if (speed != 0) { + new_engine_speed = fabs (speed); + if (speed < 0) speed = -1; + if (speed > 0) speed = 1; + } + + if (_transport_speed == speed && new_engine_speed == _engine_speed) { if (as_default && speed == 0.0) { // => reset default transport speed. hacky or what? _default_transport_speed = 1.0; } return; } +#if 0 // TODO pref: allow vari-speed recording if (actively_recording() && speed != 1.0 && speed != 0.0) { /* no varispeed during recording */ DEBUG_TRACE (DEBUG::Transport, string_compose ("No varispeed during recording cur_speed %1, sample %2\n", _transport_speed, _transport_sample)); return; } +#endif _target_transport_speed = fabs(speed); - - /* 8.0 max speed is somewhat arbitrary but based on guestimates regarding disk i/o capability - and user needs. We really need CD-style "skip" playback for ffwd and rewind. - */ - - if (speed > 0) { - speed = min (8.0, speed); - } else if (speed < 0) { - speed = max (-8.0, speed); - } + _engine_speed = new_engine_speed; if (transport_rolling() && speed == 0.0) { @@ -1479,9 +1490,11 @@ Session::set_transport_speed (double speed, samplepos_t destination_sample, bool return; } +#if 0 if (actively_recording()) { return; } +#endif if (speed > 0.0 && _transport_sample == current_end_sample()) { return; @@ -1530,14 +1543,14 @@ Session::set_transport_speed (double speed, samplepos_t destination_sample, bool * The 0.2% dead-zone is somewhat arbitrary. Main use-case * for TransportStateChange() here is the ShuttleControl display. */ - if (fabs (_signalled_varispeed - speed) > .002 + if (fabs (_signalled_varispeed - actual_speed ()) > .002 // still, signal hard changes to 1.0 and 0.0: - || ( speed == 1.0 && _signalled_varispeed != 1.0) - || ( speed == 0.0 && _signalled_varispeed != 0.0) + || (actual_speed () == 1.0 && _signalled_varispeed != 1.0) + || (actual_speed () == 0.0 && _signalled_varispeed != 0.0) ) { TransportStateChange (); /* EMIT SIGNAL */ - _signalled_varispeed = speed; + _signalled_varispeed = actual_speed (); } } } |