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"
24 #include "ardour/debug.h"
28 #include "control_group.h"
29 #include "mackie_control_protocol.h"
31 using namespace ArdourSurface;
32 using namespace Mackie;
36 Fader::factory (Surface& surface, int id, const char* name, Group& group)
38 Fader* f = new Fader (id, name, group);
40 surface.faders[id] = f;
41 surface.controls.push_back (f);
47 Fader::set_position (float normalized)
49 position = normalized;
50 return update_message ();
54 Fader::update_message ()
56 MackieControlProtocol* mcp = MackieControlProtocol::instance ();
57 if (mcp && mcp->flip_mode() == MackieControlProtocol::Zero) {
58 /* do not send messages to move the faders when in this mode */
59 return MidiByteArray();
62 int posi = lrintf (16384.0 * position);
64 if (posi == last_update_position) {
65 return MidiByteArray();
68 last_update_position = posi;
70 DEBUG_TRACE (DEBUG::MackieControl, string_compose ("generate fader message for position %1 (%2)\n", position, posi));
71 return MidiByteArray (3, 0xe0 + id(), posi & 0x7f, posi >> 7);