ardour/livetrax
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make position+width stereo panning actually functional, although its behaviour is not quite right yet. you can control this from MIDI with a binding map that connects messages to "/route/panwidth B1" and "/route/pandirection B1"

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git-svn-id: svn://localhost/ardour2/branches/3.0@8122 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis 2010-11-29 03:52:11 +00:00
parent c7df5f5271
commit d55c881626
1 changed files with 38 additions and 3 deletions
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41
libs/ardour/panner.cc
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@ -104,17 +104,20 @@ StreamPanner::PanControllable::set_value (double val)
switch (parameter().id()) {
case 100:
/* position */
AutomationControl::set_value(val);
streampanner.get_parent().set_stereo_position (val);
break;
case 200:
/* width */
AutomationControl::set_value(val);
streampanner.get_parent().set_stereo_width (val);
break;
default:
streampanner.set_position (AngularVector (direct_control_to_stereo_pan (val), 0.0));
AutomationControl::set_value(val);
break;
}
AutomationControl::set_value(val);
}
double
@ -1396,13 +1399,43 @@ Panner::setup_speakers (uint32_t nouts)
void
Panner::set_stereo_width (double val)
{
cerr << "Set stereo width to " << val << endl;
boost::shared_ptr<AutomationControl> dc = direction_control();
if (!dc) {
return;
}
double d = dc->get_value ();
set_stereo_position (d);
}
void
Panner::set_stereo_position (double val)
{
cerr << "Set stereo position to " << val << endl;
/* val is the range 0..1 */
AngularVector p (BaseStereoPanner::lr_fract_to_azimuth (val), 0.0);
boost::shared_ptr<AutomationControl> wc = width_control();
if (!wc) {
return;
}
double spread = width_control()->get_value () * 180.0;
double l_pos = p.azi + (spread/2.0); /* more left is "increasing degrees" */
double r_pos = p.azi - (spread/2.0); /* more right is "decreasing degrees" */
if (l_pos > 180.0 || r_pos < 0.0) {
/* already full panned, can't move any more */
return;
}
assert (_streampanners.size() > 1);
cerr << "pos = " << BaseStereoPanner::lr_fract_to_azimuth (val) << " spread = " << width_control()->get_value() << " left = " << l_pos << " right = " << r_pos << endl;
_streampanners[0]->set_position (AngularVector (l_pos, 0.0));
_streampanners[1]->set_position (AngularVector (r_pos, 0.0));
}
void
@ -1423,11 +1456,13 @@ Panner::setup_meta_controls ()
if (!automation_control (lr_param)) {
boost::shared_ptr<AutomationControl> c (new StreamPanner::PanControllable (_session, _("lr"), *_streampanners.front(), lr_param));
c->set_value (0.5);
add_control (c);
}
if (!automation_control (width_param)) {
boost::shared_ptr<AutomationControl> c (new StreamPanner::PanControllable (_session, _("width"), *_streampanners.front(), width_param));
c->set_value (1.0); // full width
add_control (c);
}
}