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
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/scummsys.h"
#include "common/textconsole.h"
#include "audio/mididrv.h"
#include "zvision/sound/midi.h"
namespace ZVision {
MidiManager::MidiManager() {
MidiDriver::DeviceHandle dev = MidiDriver::detectDevice(MDT_MIDI | MDT_ADLIB);
_driver = MidiDriver::createMidi(dev);
if (_driver->open())
warning("Can't open MIDI, no MIDI output!");
}
MidiManager::~MidiManager() {
stop();
_driver->close();
delete _driver;
}
void MidiManager::stop() {
for (int8 i = 0; i < 16; i++)
if (_playChannels[i].playing)
noteOff(i);
}
void MidiManager::noteOn(int8 channel, int8 note, int8 velocity) {
assert(channel <= 15);
_playChannels[channel].playing = true;
_playChannels[channel].note = note;
_driver->send(channel | (velocity << 16) | (note << 8) | 0x90);
}
void MidiManager::noteOff(int8 channel) {
assert(channel <= 15);
if (_playChannels[channel].playing) {
_playChannels[channel].playing = false;
_driver->send(channel | (_playChannels[channel].note << 8) | 0x80);
}
}
int8 MidiManager::getFreeChannel() {
for (int8 i = 0; i < 16; i++)
if (!_playChannels[i].playing)
return i;
return -1;
}
void MidiManager::setPan(int8 channel, int8 pan) {
assert(channel <= 15);
_driver->send(channel | (pan << 16) | 0xAB0);
}
void MidiManager::setVolume(int8 channel, int8 volume) {
assert(channel <= 15);
_driver->send(channel | (volume << 16) | 0x7B0);
}
void MidiManager::setProgram(int8 channel, int8 prog) {
assert(channel <= 15);
_driver->send(channel | (prog << 8) | 0xC0);
}
} // End of namespace ZVision
|
