summaryrefslogtreecommitdiff
path: root/muse_qt4_evolution/synti/zynaddsubfx/Params/Controller.C
blob: 30f5916126f103a22aff4abb397ecc89d731ca01 (plain)
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
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
/*
  ZynAddSubFX - a software synthesizer
 
  Controller.C - (Midi) Controllers implementation
  Copyright (C) 2002-2005 Nasca Octavian Paul
  Author: Nasca Octavian Paul

  This program is free software; you can redistribute it and/or modify
  it under the terms of version 2 of the GNU General Public License 
  as published by the Free Software Foundation.

  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 (version 2) for more details.

  You should have received a copy of the GNU General Public License (version 2)
  along with this program; if not, write to the Free Software Foundation,
  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA

*/

#include "Controller.h"
#include <math.h>
#include <stdio.h>

Controller::Controller(){
    defaults();
    resetall();
};

Controller::~Controller(){
};

void Controller::defaults(){
    setpitchwheelbendrange(200);//2 halftones
    expression.receive=1;
    panning.depth=64;
    filtercutoff.depth=64;
    filterq.depth=64;
    bandwidth.depth=64;
    bandwidth.exponential=0;
    modwheel.depth=80;
    modwheel.exponential=0;
    fmamp.receive=1;
    volume.receive=0;
    sustain.receive=1;
    NRPN.receive=1;

    portamento.portamento=0;
    portamento.used=0;
    portamento.receive=1;
    portamento.time=64;
    portamento.updowntimestretch=64;
    portamento.pitchthresh=3;
    portamento.pitchthreshtype=1;
    portamento.noteusing=-1;
    resonancecenter.depth=64;
    resonancebandwidth.depth=64;

    initportamento(440.0,440.0);
    setportamento(0);

};

void Controller::resetall(){
    setpitchwheel(0);//center
    setexpression(127);
    setpanning(64);
    setfiltercutoff(64);
    setfilterq(64);
    setbandwidth(64);
    setmodwheel(64);
    setfmamp(127);
    setvolume(127);
    setsustain(0);
    setresonancecenter(64);
    setresonancebw(64);
    
    //reset the NRPN
    NRPN.parhi=-1;
    NRPN.parlo=-1;
    NRPN.valhi=-1;
    NRPN.vallo=-1;
};

void Controller::setpitchwheel(int value){
    pitchwheel.data=value;
    REALTYPE cents=value/8192.0;
    cents*=pitchwheel.bendrange;
    pitchwheel.relfreq=pow(2,cents/1200.0);
    //fprintf(stderr,"%ld %ld -> %.3f\n",pitchwheel.bendrange,pitchwheel.data,pitchwheel.relfreq);fflush(stderr);
};

void Controller::setpitchwheelbendrange(unsigned short int value){
    pitchwheel.bendrange=value;
};

void Controller::setexpression(int value){
    expression.data=value;
    if (expression.receive!=0) expression.relvolume=value/127.0;
	else expression.relvolume=1.0;
};

void Controller::setpanning(int value){
    panning.data=value;
    panning.pan=(value/128.0-0.5)*(panning.depth/64.0);
};

void Controller::setfiltercutoff(int value){
    filtercutoff.data=value;
    filtercutoff.relfreq=(value-64.0)*filtercutoff.depth/4096.0*3.321928;//3.3219..=ln2(10)
};

void Controller::setfilterq(int value){
    filterq.data=value;
    filterq.relq=pow(30.0,(value-64.0)/64.0*(filterq.depth/64.0));
};

void Controller::setbandwidth(int value){
    bandwidth.data=value;
    if (bandwidth.exponential==0) {
	    REALTYPE tmp=pow(25.0,pow(bandwidth.depth/127.0,1.5))-1.0;
	    if ((value<64)&&(bandwidth.depth>=64)) tmp=1.0;
	    bandwidth.relbw=(value/64.0-1.0)*tmp+1.0;
	    if (bandwidth.relbw<0.01) bandwidth.relbw=0.01;
    } else {
	bandwidth.relbw=pow(25.0,(value-64.0)/64.0*(bandwidth.depth/64.0));
    };
};

void Controller::setmodwheel(int value){
    modwheel.data=value;
    if (modwheel.exponential==0) {
	    REALTYPE tmp=pow(25.0,pow(modwheel.depth/127.0,1.5)*2.0)/25.0;
	    if ((value<64)&&(modwheel.depth>=64)) tmp=1.0;
	    modwheel.relmod=(value/64.0-1.0)*tmp+1.0;
	    if (modwheel.relmod<0.0) modwheel.relmod=0.0;
	} else modwheel.relmod=pow(25.0,(value-64.0)/64.0*(modwheel.depth/80.0));
};

void Controller::setfmamp(int value){
    fmamp.data=value;
    fmamp.relamp=value/127.0;
    if (fmamp.receive!=0) fmamp.relamp=value/127.0;
	else fmamp.relamp=1.0;
};

void Controller::setvolume(int value){
    volume.data=value;
    if (volume.receive!=0) volume.volume=pow(0.1,(127-value)/127.0*2.0);
	else volume.volume=1.0;
};

void Controller::setsustain(int value){
    sustain.data=value;
    if (sustain.receive!=0) sustain.sustain=((value<64) ? 0 : 1 );
	else sustain.sustain=0;
};

void Controller::setportamento(int value){
    portamento.data=value;
    if (portamento.receive!=0) portamento.portamento=((value<64) ? 0 : 1 );
};

int Controller::initportamento(REALTYPE oldfreq,REALTYPE newfreq){
    portamento.x=0.0;
    if ((portamento.used!=0) || (portamento.portamento==0)) return(0);
    REALTYPE portamentotime=pow(100.0,portamento.time/127.0)/50.0;//portamento time in seconds

    if ((portamento.updowntimestretch>=64)&&(newfreq<oldfreq)){
	if (portamento.updowntimestretch==127) return(0);
	portamentotime*=pow(0.1,(portamento.updowntimestretch-64)/63.0);
    } 
    if ((portamento.updowntimestretch<64)&&(newfreq>oldfreq)){
	if (portamento.updowntimestretch==0) return(0);
	portamentotime*=pow(0.1,(64.0-portamento.updowntimestretch)/64.0);
    };
    
    portamento.dx=SOUND_BUFFER_SIZE/(portamentotime*SAMPLE_RATE);
    portamento.origfreqrap=oldfreq/newfreq;
    
    REALTYPE tmprap=( (portamento.origfreqrap>1.0) ? 
                      (portamento.origfreqrap) : 
		      (1.0/portamento.origfreqrap) );
    
    REALTYPE thresholdrap=pow(2.0,portamento.pitchthresh/12.0);
    if ((portamento.pitchthreshtype==0) && (tmprap-0.00001>thresholdrap) ) return(0);
    if ((portamento.pitchthreshtype==1) && (tmprap+0.00001<thresholdrap) ) return(0);

    portamento.used=1;
    portamento.freqrap=portamento.origfreqrap;
    return (1);
};

void Controller::updateportamento(){
    if (portamento.used==0) return;
    
    portamento.x+=portamento.dx;
    if (portamento.x>1.0) {
	portamento.x=1.0;
	portamento.used=0;
    };
    portamento.freqrap=(1.0-portamento.x)*portamento.origfreqrap+portamento.x;
};


void Controller::setresonancecenter(int value){
    resonancecenter.data=value;
    resonancecenter.relcenter=pow(3.0,(value-64.0)/64.0*(resonancecenter.depth/64.0));
};
void Controller::setresonancebw(int value){
    resonancebandwidth.data=value;
    resonancebandwidth.relbw=pow(1.5,(value-64.0)/64.0*(resonancebandwidth.depth/127.0));
};


//Returns 0 if there is NRPN or 1 if there is not
int Controller::getnrpn(int *parhi, int *parlo, int *valhi, int *vallo){
    if (NRPN.receive==0) return(1);
    if ((NRPN.parhi<0)||(NRPN.parlo<0)||(NRPN.valhi<0)||(NRPN.vallo<0)) 
	return(1);
	
    *parhi=NRPN.parhi;
    *parlo=NRPN.parlo;
    *valhi=NRPN.valhi;
    *vallo=NRPN.vallo;
    return(0);
};


void Controller::setparameternumber(unsigned int type,int value){
    switch(type){
	case C_nrpnhi:NRPN.parhi=value;
		      NRPN.valhi=-1;NRPN.vallo=-1;//clear the values
		      break;
	case C_nrpnlo:NRPN.parlo=value;
		      NRPN.valhi=-1;NRPN.vallo=-1;//clear the values
		      break;
	case C_dataentryhi:if ((NRPN.parhi>=0)&&(NRPN.parlo>=0)) NRPN.valhi=value;
			   break;
	case C_dataentrylo:if ((NRPN.parhi>=0)&&(NRPN.parlo>=0)) NRPN.vallo=value;
			   break;
    };
};



void Controller::add2XML(XMLwrapper *xml){
    xml->addpar("pitchwheel_bendrange",pitchwheel.bendrange);

    xml->addparbool("expression_receive",expression.receive);
    xml->addpar("panning_depth",panning.depth);
    xml->addpar("filter_cutoff_depth",filtercutoff.depth);
    xml->addpar("filter_q_depth",filterq.depth);
    xml->addpar("bandwidth_depth",bandwidth.depth);
    xml->addpar("mod_wheel_depth",modwheel.depth);
    xml->addparbool("mod_wheel_exponential",modwheel.exponential);
    xml->addparbool("fm_amp_receive",fmamp.receive);
    xml->addparbool("volume_receive",volume.receive);
    xml->addparbool("sustain_receive",sustain.receive);

    xml->addparbool("portamento_receive",portamento.receive);
    xml->addpar("portamento_time",portamento.time);
    xml->addpar("portamento_pitchthresh",portamento.pitchthresh);
    xml->addpar("portamento_pitchthreshtype",portamento.pitchthreshtype);
    xml->addpar("portamento_portamento",portamento.portamento);
    xml->addpar("portamento_updowntimestretch",portamento.updowntimestretch);

    xml->addpar("resonance_center_depth",resonancecenter.depth);
    xml->addpar("resonance_bandwidth_depth",resonancebandwidth.depth);
};

void Controller::getfromXML(XMLwrapper *xml){
    pitchwheel.bendrange=xml->getpar("pitchwheel_bendrange",pitchwheel.bendrange,-6400,6400);

    expression.receive=xml->getparbool("expression_receive",expression.receive);
    panning.depth=xml->getpar127("panning_depth",panning.depth);
    filtercutoff.depth=xml->getpar127("filter_cutoff_depth",filtercutoff.depth);
    filterq.depth=xml->getpar127("filter_q_depth",filterq.depth);
    bandwidth.depth=xml->getpar127("bandwidth_depth",bandwidth.depth);
    modwheel.depth=xml->getpar127("mod_wheel_depth",modwheel.depth);
    modwheel.exponential=xml->getparbool("mod_wheel_exponential",modwheel.exponential);
    fmamp.receive=xml->getparbool("fm_amp_receive",fmamp.receive);
    volume.receive=xml->getparbool("volume_receive",volume.receive);
    sustain.receive=xml->getparbool("sustain_receive",sustain.receive);

    portamento.receive=xml->getparbool("portamento_receive",portamento.receive);
    portamento.time=xml->getpar127("portamento_time",portamento.time);
    portamento.pitchthresh=xml->getpar127("portamento_pitchthresh",portamento.pitchthresh);
    portamento.pitchthreshtype=xml->getpar127("portamento_pitchthreshtype",portamento.pitchthreshtype);
    portamento.portamento=xml->getpar127("portamento_portamento",portamento.portamento);
    portamento.updowntimestretch=xml->getpar127("portamento_updowntimestretch",portamento.updowntimestretch);

    resonancecenter.depth=xml->getpar127("resonance_center_depth",resonancecenter.depth);
    resonancebandwidth.depth=xml->getpar127("resonance_bandwidth_depth",resonancebandwidth.depth);
};