2 Copyright (C) 2006,2007 John Anderson
3 Copyright (C) 2012 Paul Davis
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include "pbd/compose.h"
23 #include "ardour/debug.h"
25 #include "mackie_control_protocol.h"
28 #include "surface_port.h"
29 #include "control_group.h"
31 using namespace Mackie;
35 Meter::factory (Surface& surface, int id, const char* name, Group& group)
37 Meter* m = new Meter (id, name, group);
38 surface.meters[id] = m;
39 surface.controls.push_back (m);
45 Meter::update_transport_rolling(Surface& surface)
47 bool transport_is_rolling = (surface.mcp().get_transport_speed () != 0.0f);
49 if (_transport_is_rolling == transport_is_rolling) {
52 if (transport_is_rolling) {
53 MidiByteArray enable_msg;
56 enable_msg << surface.sysex_hdr();
58 // code for Channel Meter Enable Message
61 // Channel identification
64 // Enabling level meter on LCD, peak hold display on horizontal meter and signal LED
68 enable_msg << MIDI::eox;
70 surface.write (enable_msg);
73 MidiByteArray disable_msg;
76 disable_msg << surface.sysex_hdr();
78 // code for Channel Meter Enable Message
81 // Channel identification
84 // Disabling level meter on LCD, peak hold display on horizontal meter and signal LED
88 disable_msg << MIDI::eox;
90 surface.write (disable_msg);
92 _transport_is_rolling = transport_is_rolling;
96 Meter::send_update (Surface& surface, float dB)
98 float def = 0.0f; /* Meter deflection %age */
100 // DEBUG_TRACE (DEBUG::MackieControl, string_compose ("Meter ID %1 dB %2\n", id(), dB));
102 if (!_transport_is_rolling) {
108 } else if (dB < -60.0f) {
109 def = (dB + 70.0f) * 0.25f;
110 } else if (dB < -50.0f) {
111 def = (dB + 60.0f) * 0.5f + 2.5f;
112 } else if (dB < -40.0f) {
113 def = (dB + 50.0f) * 0.75f + 7.5f;
114 } else if (dB < -30.0f) {
115 def = (dB + 40.0f) * 1.5f + 15.0f;
116 } else if (dB < -20.0f) {
117 def = (dB + 30.0f) * 2.0f + 30.0f;
118 } else if (dB < 6.0f) {
119 def = (dB + 20.0f) * 2.5f + 50.0f;
124 /* 115 is the deflection %age that would be
125 when dB=6.0. this is an arbitrary
126 endpoint for our scaling.
134 surface.write (MidiByteArray (2, 0xd0, (id() << 4) | 0xe));
140 surface.write (MidiByteArray (2, 0xd0, (id() << 4) | 0xf));
144 /* we can use up to 13 segments */
146 int segment = lrintf ((def/115.0) * 13.0);
148 surface.write (MidiByteArray (2, 0xd0, (id()<<4) | segment));
154 return MidiByteArray (2, 0xD0, (id()<<4 | 0));