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
110
|
#include "channelmixer.h"
ChannelMixer::ChannelMixer(Channels &c, Channel *defc, float defg)
: channels(c)
{
setDefaults(defc, defg);
}
void ChannelMixer::setDefaults(Channel *defc, float defg)
{
defaultchannel = defc;
if(defc == NULL && channels.size() > 0) defaultchannel = &channels[0];
defaultgain = defg;
}
MixerSettings &ChannelMixer::lookup(InstrumentChannel *c)
{
std::map<InstrumentChannel *, MixerSettings>::iterator mi = mix.find(c);
if(mi == mix.end()) {
MixerSettings m;
m.gain = defaultgain;
m.output = defaultchannel;
mix[c] = m;
return mix[c];
}
return mi->second;
}
#ifdef TEST_CHANNELMIXER
#include "test.h"
TEST_BEGIN;
Channel ch1;
Channel ch2;
Channels channels;
channels.push_back(ch1);
channels.push_back(ch2);
{
ChannelMixer mixer(channels, NULL, 1.0);
InstrumentChannel ich;
MixerSettings &m = mixer.lookup(&ich);
TEST_EQUAL(m.output, &channels[0], "Default channel?");
TEST_EQUAL_FLOAT(m.gain, 1.0, "Default gain?");
}
{
ChannelMixer mixer(channels, &channels[1]);
InstrumentChannel ich;
MixerSettings &m = mixer.lookup(&ich);
TEST_EQUAL(m.output, &channels[1], "Default channel?");
TEST_EQUAL_FLOAT(m.gain, 1.0, "Default gain?");
}
{
ChannelMixer mixer(channels, &channels[1]);
InstrumentChannel ich;
MixerSettings &m = mixer.lookup(&ich);
TEST_EQUAL(m.output, &channels[1], "Default channel?");
TEST_EQUAL_FLOAT(m.gain, 1.0, "Default gain?");
m.output = &channels[0];
m.gain = 0.5;
MixerSettings &m2 = mixer.lookup(&ich);
TEST_EQUAL(m2.output, &channels[0], "Changed channel?");
TEST_EQUAL_FLOAT(m2.gain, 0.5, "Changed gain?");
}
TEST_END;
#endif
|