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
|
/* sc4pd
LinCong, LinCong~
Copyright (c) 2004 Tim Blechmann.
This code is derived from:
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Based on:
PureData by Miller Puckette and others.
http://www.crca.ucsd.edu/~msp/software.html
FLEXT by Thomas Grill
http://www.parasitaere-kapazitaeten.net/ext
SuperCollider by James McCartney
http://www.audiosynth.com
Coded while listening to: Keith Rowe & John Tilbury: Duos For Doris
*/
#include "sc4pd.hpp"
/* ------------------------ LinCong~ -------------------------------*/
class LinCong_ar:
public sc4pd_dsp
{
FLEXT_HEADER(LinCong_ar,sc4pd_dsp);
public:
LinCong_ar(int argc, t_atom *argv);
protected:
virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
void m_set_seed(float f)
{
m_seed = (int)f;
}
void m_set_mul(float f)
{
m_mul = (int)f;
}
void m_set_add(float f)
{
m_add = (int)f;
}
void m_set_mod(float f)
{
m_mod = (int)f;
m_scale = 2/f; //output between -1 and 1
}
private:
unsigned int m_seed; //seed
unsigned int m_mul, m_add, m_mod; //parameters
float m_scale;
FLEXT_CALLBACK_F(m_set_seed);
FLEXT_CALLBACK_F(m_set_mul);
FLEXT_CALLBACK_F(m_set_add);
FLEXT_CALLBACK_F(m_set_mod);
};
FLEXT_LIB_DSP_V("LinCong~",LinCong_ar);
LinCong_ar::LinCong_ar(int argc, t_atom *argv)
{
FLEXT_ADDMETHOD_(0,"seed",m_set_seed);
FLEXT_ADDMETHOD_(0,"mul",m_set_mul);
FLEXT_ADDMETHOD_(0,"add",m_set_add);
FLEXT_ADDMETHOD_(0,"mod",m_set_mod);
//parse arguments
AtomList Args(argc,argv);
if (Args.Count()!=4)
{
post("4 arguments needed");
}
m_seed = sc_getfloatarg(Args,0);
m_mul = sc_getfloatarg(Args,1);
m_add = sc_getfloatarg(Args,2);
m_set_mod(sc_getfloatarg(Args,3));
AddOutSignal();
}
void LinCong_ar::m_signal(int n, t_sample *const *in,
t_sample *const *out)
{
t_sample *xout = *out;
unsigned int seed = m_seed;
unsigned int mul = m_mul;
unsigned int add = m_add;
unsigned int mod = m_mod;
float scale = m_scale;
for (int i = 0; i!= n;++i)
{
seed=(seed * mul + add) % mod;
(*(xout)++)=float(seed)*scale - 1;
}
m_seed = seed;
}
/* ------------------------ LinCong ---------------------------------*/
class LinCong_kr:
public flext_base
{
FLEXT_HEADER(LinCong_kr,flext_base);
public:
LinCong_kr(int argc, t_atom *argv);
protected:
void m_perform();
void m_set_seed(float f)
{
m_seed = (int)f;
}
void m_set_mul(float f)
{
m_mul = (int)f;
}
void m_set_add(float f)
{
m_add = (int)f;
}
void m_set_mod(float f)
{
m_mod = (int)f;
m_scale = 2/f; //output between -1 and 1
}
private:
unsigned int m_seed; //seed
unsigned int m_mul, m_add, m_mod; //parameters
float m_scale;
FLEXT_CALLBACK_F(m_set_seed);
FLEXT_CALLBACK_F(m_set_mul);
FLEXT_CALLBACK_F(m_set_add);
FLEXT_CALLBACK_F(m_set_mod);
FLEXT_CALLBACK(m_perform);
};
FLEXT_LIB_V("LinCong",LinCong_kr);
LinCong_kr::LinCong_kr(int argc, t_atom *argv)
{
FLEXT_ADDMETHOD_(0,"seed",m_set_seed);
FLEXT_ADDMETHOD_(0,"mul",m_set_mul);
FLEXT_ADDMETHOD_(0,"add",m_set_add);
FLEXT_ADDMETHOD_(0,"mod",m_set_mod);
FLEXT_ADDBANG(0,m_perform);
//parse arguments
AtomList Args(argc,argv);
if (Args.Count()!=4)
{
post("4 arguments needed");
}
m_seed = sc_getfloatarg(Args,0);
m_mul = sc_getfloatarg(Args,1);
m_add = sc_getfloatarg(Args,2);
m_set_mod(sc_getfloatarg(Args,3));
AddOutFloat();
}
void LinCong_kr::m_perform()
{
m_seed=(m_seed * m_mul + m_add) % m_mod;
ToOutFloat(0,float(m_seed) * m_scale - 1);
}
|
