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copy over changes to BasicUI::button_varispeed() to ARDOUR_UI::button_varispeed()

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This commit is contained in:
Paul Davis 2021-05-04 23:14:48 -06:00
parent 273049a5a1
commit 9f4189c031
1 changed files with 42 additions and 21 deletions
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63
gtk2_ardour/ardour_ui.cc
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@ -1997,53 +1997,74 @@ ARDOUR_UI::transport_ffwd_rewind (bool fwd)
if (!_session) {
return;
}
// incrementally increase speed by semitones
// (keypress auto-repeat is 100ms)
const float maxspeed = Config->get_shuttle_max_speed();
float semitone_ratio = exp2f (1.0f/12.0f);
float transport_speed = _session->actual_speed ();
float transport_speed = _session->actual_speed();
float speed;
if (transport_speed == 0.0 || fabs (transport_speed) <= 1.0/semitone_ratio) {
/* close to zero, maybe flip direction */
if (Config->get_rewind_ffwd_like_tape_decks()) {
if (fwd) {
if (transport_speed <= 0) {
_session->request_transport_speed (1.0, false);
_session->request_roll (TRS_UI);
return;
}
} else {
if (transport_speed >= 0) {
_session->request_transport_speed (-1.0, false);
_session->request_roll (TRS_UI);
return;
}
}
/* either we've just started, or we're moving as slowly as we
* ever should
*/
return;
}
if (fwd) {
if (transport_speed < 0.f) {
/* we need to move the speed back towards zero */
semitone_ratio = 1.0/semitone_ratio;
}
} else {
if (transport_speed > 0.f) {
/* we need to move the speed back towards zero */
semitone_ratio = 1.0/semitone_ratio;
if (transport_speed == 0.0 || fabs (transport_speed) <= 1.0/semitone_ratio) {
/* close to zero, maybe flip direction */
if (fwd) {
if (transport_speed <= 0) {
_session->request_transport_speed (1.0, false);
_session->request_roll (TRS_UI);
}
} else {
if (transport_speed >= 0) {
_session->request_transport_speed (-1.0, false);
_session->request_roll (TRS_UI);
}
}
/* either we've just started, or we're moving as slowly as we
* ever should
*/
return;
}
if (fwd) {
if (transport_speed < 0.f) {
/* we need to move the speed back towards zero */
semitone_ratio = 1.0/semitone_ratio;
}
} else {
if (transport_speed > 0.f) {
/* we need to move the speed back towards zero */
semitone_ratio = 1.0/semitone_ratio;
}
}
}
float speed = semitone_ratio * transport_speed;
speed = semitone_ratio * transport_speed;
speed = std::max (-maxspeed, std::min (maxspeed, speed));
_session->request_transport_speed (speed, false);
_session->request_roll (TRS_UI);
}
void