1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/*
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)
{
alist()->reset_default (1.0);
lower_db = accurate_coefficient_to_dB (_desc.lower);
range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
}
double
GainControl::internal_to_interface (double v) const
{
if (_desc.type == GainAutomation) {
return gain_to_slider_position (v);
} else {
return (accurate_coefficient_to_dB (v) - lower_db) / range_db;
}
}
double
GainControl::interface_to_internal (double v) const
{
if (_desc.type == GainAutomation) {
return slider_position_to_gain (v);
} else {
return dB_to_coefficient (lower_db + v * range_db);
}
}
double
GainControl::internal_to_user (double v) const
{
return accurate_coefficient_to_dB (v);
}
double
GainControl::user_to_internal (double u) const
{
return dB_to_coefficient (u);
}
std::string
GainControl::get_user_string () const
{
char theBuf[32]; sprintf( theBuf, _("%3.1f dB"), accurate_coefficient_to_dB (get_value()));
return std::string(theBuf);
}
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 = user_double();
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);
}
}
bool
GainControl::get_masters_curve_locked (framepos_t start, framepos_t end, float* vec, framecnt_t veclen) const
{
return SlavableAutomationControl::masters_curve_multiply (start, end, vec, veclen);
}
|
