Paul Davis
30b087ab3d
Generated by tools/f2s. Some hand-editing will be required in a few places to fix up comments related to timecode and video in order to keep the legible
82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
/*
|
|
Copyright (C) 2006-2016 Paul Davis
|
|
|
|
This program is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by the Free
|
|
Software Foundation; either version 2 of the License, or (at your option)
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include <cmath>
|
|
|
|
#include "pbd/convert.h"
|
|
#include "pbd/strsplit.h"
|
|
|
|
#include "evoral/Curve.hpp"
|
|
|
|
#include "ardour/dB.h"
|
|
#include "ardour/gain_control.h"
|
|
#include "ardour/session.h"
|
|
#include "ardour/vca.h"
|
|
#include "ardour/vca_manager.h"
|
|
|
|
#include "pbd/i18n.h"
|
|
|
|
using namespace ARDOUR;
|
|
using namespace std;
|
|
|
|
GainControl::GainControl (Session& session, const Evoral::Parameter ¶m, boost::shared_ptr<AutomationList> al)
|
|
: SlavableAutomationControl (session, param, ParameterDescriptor(param),
|
|
al ? al : boost::shared_ptr<AutomationList> (new AutomationList (param)),
|
|
param.type() == GainAutomation ? X_("gaincontrol") : X_("trimcontrol"),
|
|
Controllable::GainLike)
|
|
{
|
|
}
|
|
|
|
void
|
|
GainControl::inc_gain (gain_t factor)
|
|
{
|
|
/* To be used ONLY when doing group-relative gain adjustment, from
|
|
* ControlGroup::set_group_values().
|
|
*/
|
|
|
|
const float desired_gain = get_value ();
|
|
|
|
if (fabsf (desired_gain) < GAIN_COEFF_SMALL) {
|
|
// really?! what's the idea here?
|
|
actually_set_value (0.000001f + (0.000001f * factor), Controllable::ForGroup);
|
|
} else {
|
|
actually_set_value (desired_gain + (desired_gain * factor), Controllable::ForGroup);
|
|
}
|
|
}
|
|
|
|
void
|
|
GainControl::post_add_master (boost::shared_ptr<AutomationControl> m)
|
|
{
|
|
if (m->get_value() == 0) {
|
|
/* master is at -inf, which forces this ctrl to -inf on assignment */
|
|
Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
|
|
}
|
|
}
|
|
|
|
bool
|
|
GainControl::get_masters_curve_locked (samplepos_t start, samplepos_t end, float* vec, samplecnt_t veclen) const
|
|
{
|
|
if (_masters.empty()) {
|
|
return list()->curve().rt_safe_get_vector (start, end, vec, veclen);
|
|
}
|
|
for (samplecnt_t i = 0; i < veclen; ++i) {
|
|
vec[i] = 1.f;
|
|
}
|
|
return SlavableAutomationControl::masters_curve_multiply (start, end, vec, veclen);
|
|
}
|