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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/*
trigEnvSegs.cpp: trigger versions of linseg and expseg
Copyright (C) 2021 Rory Walsh
This file is part of Csound.
The Csound Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Csound 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Csound; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include <plugin.h>
#include <vector>
#include <numeric>
#include <modload.h>
// linseg type opcode with trigger mechanism
struct TrigLinseg : csnd::Plugin<1, 64>
{
int init()
{
uint32_t argCnt = 1;
totalLength = 0;
samplingRate = csound->sr();
playEnv = 0;
counter = 0;
outargs[0] = inargs[1];
segment = 0;
outValue = 0;
while (argCnt < in_count())
{
if (argCnt % 2 == 0)
durations.push_back (inargs[argCnt]*samplingRate);
else
values.push_back (inargs[argCnt]);
argCnt++;
}
//values.push_back(inargs[argCnt - 1]);
incr = (values[1] - values[0]) / durations[0];
totalLength = std::accumulate (durations.begin(), durations.end(), 0);
return OK;
}
int kperf()
{
outargs[0] = envGenerator (nsmps);
return OK;
}
int aperf()
{
for (uint32_t i = offset; i < nsmps; i++)
outargs (0)[i] = envGenerator (1);
return OK;
}
MYFLT envGenerator (int sampIncr)
{
// trigger envelope
if (inargs[0] == 1)
{
incr = (values[1] - values[0]) / durations[0];
outValue = inargs[1];
playEnv = 1;
}
if (playEnv == 1 && segment < durations.size())
{
if (counter < durations[segment])
{
outValue += incr;
counter += sampIncr;
}
else
{
segment++;
counter = 0;
if (segment < durations.size())
incr = (values[segment + 1] - values[segment]) / durations[segment];
}
}
else
{
playEnv = 0;
counter = 0;
segment = 0;
outValue = values[values.size() - 1];
}
return outValue;
}
uint32_t samplingRate, playEnv, counter, totalLength, segment;
MYFLT outValue, incr;
std::vector<MYFLT> values;
std::vector<MYFLT> durations;
};
// expseg type opcode with trigger mechanism
struct TrigExpseg : csnd::Plugin<1, 64>
{
int init()
{
uint32_t argCnt = 1;
samplingRate = csound->sr();
playEnv = 0;
counter = 0;
outargs[0] = inargs[1];
segment = 0;
outValue = inargs[1];
while (argCnt < in_count())
{
if (argCnt % 2 == 0)
durations.push_back (inargs[argCnt]*samplingRate);
else
{
if (inargs[argCnt] <= 0.0)
{
csound->message ("iVal is 0");
return NOTOK;
}
values.push_back (inargs[argCnt]);
}
argCnt++;
}
incr = pow (values[1] / values[0], 1 / (durations[0]));
return OK;
}
int kperf()
{
outargs[0] = envGenerator (nsmps);
return OK;
}
int aperf()
{
for (uint32_t i = offset; i < nsmps; i++)
outargs (0)[i] = envGenerator (1);
return OK;
}
MYFLT envGenerator (int sampIncr)
{
// trigger envelope
if (inargs[0] == 1)
{
incr = pow(values[1] / values[0], 1 / (durations[0]));
outValue = inargs[1];
playEnv = 1;
}
if (playEnv == 1 && segment < durations.size())
{
if (counter < durations[segment])
{
outValue *= incr;
counter += sampIncr;
}
else
{
segment++;
counter = 0;
if(segment < durations.size())
incr = pow (values[segment + 1] / values[segment], 1 / (durations[segment]));
}
}
else
{
playEnv = 0;
counter = 0;
segment = 0;
outValue = values[values.size() - 1];
}
return outValue;
}
uint32_t samplingRate, playEnv, counter, segment;
MYFLT outValue, incr;
std::vector<MYFLT> values;
std::vector<MYFLT> durations;
};
void csnd::on_load (Csound* csound)
{
csnd::plugin<TrigExpseg> (csound, "trigExpseg.aa", "a", "km", csnd::thread::ia);
csnd::plugin<TrigExpseg> (csound, "trigExpseg.kk", "k", "km", csnd::thread::ik);
csnd::plugin<TrigLinseg> (csound, "trigLinseg.aa", "a", "km", csnd::thread::ia);
csnd::plugin<TrigLinseg> (csound, "trigLinseg.kk", "k", "km", csnd::thread::ik);
csnd::plugin<TrigExpseg> (csound, "trigexpseg.aa", "a", "km", csnd::thread::ia);
csnd::plugin<TrigExpseg> (csound, "trigexpseg.kk", "k", "km", csnd::thread::ik);
csnd::plugin<TrigLinseg> (csound, "triglinseg.aa", "a", "km", csnd::thread::ia);
csnd::plugin<TrigLinseg> (csound, "triglinseg.kk", "k", "km", csnd::thread::ik);
}
|
