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use rewind/ffwd option to alter behavior of control surface rewind/ffwd buttons

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This does not affect GUI equivalents (yet)
This commit is contained in:
Paul Davis 2021-05-04 20:52:01 -06:00
parent 8113118b89
commit 1757cfb8ef
1 changed files with 40 additions and 19 deletions
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59
libs/surfaces/control_protocol/basic_ui.cc
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@ -193,44 +193,65 @@ BasicUI::button_varispeed (bool fwd)
const float maxspeed = Config->get_shuttle_max_speed(); const float maxspeed = Config->get_shuttle_max_speed();
float semitone_ratio = exp2f (1.0f/12.0f); float semitone_ratio = exp2f (1.0f/12.0f);
float transport_speed = get_transport_speed (); float transport_speed = get_transport_speed ();
float speed;
if (transport_speed == 0.0 || fabs (transport_speed) <= 1.0/semitone_ratio) { if (Config->get_rewind_ffwd_like_tape_decks()) {
/* close to zero, maybe flip direction */
if (fwd) { if (fwd) {
if (transport_speed <= 0) { if (transport_speed <= 0) {
session->request_transport_speed (1.0, false); session->request_transport_speed (1.0, false);
session->request_roll (TRS_UI); session->request_roll (TRS_UI);
return;
} }
} else { } else {
if (transport_speed >= 0) { if (transport_speed >= 0) {
session->request_transport_speed (-1.0, false); session->request_transport_speed (-1.0, false);
session->request_roll (TRS_UI); 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 { } else {
if (transport_speed > 0.f) {
/* we need to move the speed back towards zero */ if (transport_speed == 0.0 || fabs (transport_speed) <= 1.0/semitone_ratio) {
semitone_ratio = 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)); speed = std::max (-maxspeed, std::min (maxspeed, speed));
session->request_transport_speed (speed, false); session->request_transport_speed (speed, false);
session->request_roll (TRS_UI); session->request_roll (TRS_UI);