-
-
Notifications
You must be signed in to change notification settings - Fork 1.2k
/
controlbehavior.cpp
333 lines (299 loc) · 11.8 KB
/
controlbehavior.cpp
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
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
#include "control/controlbehavior.h"
#include "control/control.h"
#include "util/math.h"
bool ControlNumericBehavior::setFilter(double* dValue) {
Q_UNUSED(dValue);
return true;
}
double ControlNumericBehavior::valueToParameter(double dValue) {
return dValue;
}
double ControlNumericBehavior::midiValueToParameter(double midiValue) {
return midiValue;
}
double ControlNumericBehavior::parameterToValue(double dParam) {
return dParam;
}
double ControlNumericBehavior::valueToMidiParameter(double dValue) {
return dValue;
}
void ControlNumericBehavior::setValueFromMidiParameter(MidiOpCode o, double dParam,
ControlDoublePrivate* pControl) {
Q_UNUSED(o);
double dNorm = midiValueToParameter(dParam);
pControl->set(parameterToValue(dNorm), NULL);
}
ControlPotmeterBehavior::ControlPotmeterBehavior(double dMinValue, double dMaxValue,
bool allowOutOfBounds)
: m_dMinValue(dMinValue),
m_dMaxValue(dMaxValue),
m_dValueRange(m_dMaxValue - m_dMinValue),
m_bAllowOutOfBounds(allowOutOfBounds) {
}
ControlPotmeterBehavior::~ControlPotmeterBehavior() {
}
bool ControlPotmeterBehavior::setFilter(double* dValue) {
if (!m_bAllowOutOfBounds) {
if (*dValue > m_dMaxValue) {
*dValue = m_dMaxValue;
} else if (*dValue < m_dMinValue) {
*dValue = m_dMinValue;
}
}
return true;
}
double ControlPotmeterBehavior::valueToParameter(double dValue) {
if (m_dValueRange == 0.0) {
return 0;
}
if (dValue > m_dMaxValue) {
dValue = m_dMaxValue;
} else if (dValue < m_dMinValue) {
dValue = m_dMinValue;
}
return (dValue - m_dMinValue) / m_dValueRange;
}
double ControlPotmeterBehavior::midiValueToParameter(double midiValue) {
double parameter;
if (midiValue > 64) {
parameter = (midiValue - 1) / 126.0;
} else {
// Hack for 0.5 at 64
parameter = midiValue / 128.0;
}
return parameter;
}
double ControlPotmeterBehavior::parameterToValue(double dParam) {
return m_dMinValue + (dParam * m_dValueRange);
}
double ControlPotmeterBehavior::valueToMidiParameter(double dValue) {
// 7-bit MIDI has 128 values [0, 127]. This means there is no such thing as
// center. The industry convention is that 64 is center. We fake things a
// little bit here to make that the case. This function is linear from [0,
// 127.0/128.0] with slope 128 and then cuts off at 127 from 127.0/128.0 to
// 1.0. from 0 to 64 with slope 128 and from 64 to 127 with slope 126.
double dNorm = valueToParameter(dValue);
if (dNorm > 0.5) {
return (dNorm * 126) + 1;
} else {
return dNorm * 128.0;
}
}
#define maxPosition 1.0
#define minPosition 0.0
#define middlePosition ((maxPosition - minPosition) / 2.0)
#define positionrange (maxPosition - minPosition)
ControlLogPotmeterBehavior::ControlLogPotmeterBehavior(double dMinValue, double dMaxValue, double minDB)
: ControlPotmeterBehavior(dMinValue, dMaxValue, false) {
if (minDB >= 0) {
qWarning() << "ControlLogPotmeterBehavior::ControlLogPotmeterBehavior() minDB must be negative";
m_minDB = -1;
} else {
m_minDB = minDB;
}
m_minOffset = db2ratio(m_minDB);
}
ControlLogPotmeterBehavior::~ControlLogPotmeterBehavior() {
}
double ControlLogPotmeterBehavior::valueToParameter(double dValue) {
if (m_dValueRange == 0.0) {
return 0;
}
if (dValue > m_dMaxValue) {
dValue = m_dMaxValue;
} else if (dValue < m_dMinValue) {
dValue = m_dMinValue;
}
double linPrameter = (dValue - m_dMinValue) / m_dValueRange;
double dbParamter = ratio2db(linPrameter + m_minOffset * (1 - linPrameter));
return 1 - (dbParamter / m_minDB);
}
double ControlLogPotmeterBehavior::parameterToValue(double dParam) {
double dbParamter = (1 - dParam) * m_minDB;
double linPrameter = (db2ratio(dbParamter) - m_minOffset) / (1 - m_minOffset);
return m_dMinValue + (linPrameter * m_dValueRange);
}
ControlLinPotmeterBehavior::ControlLinPotmeterBehavior(double dMinValue, double dMaxValue,
bool allowOutOfBounds)
: ControlPotmeterBehavior(dMinValue, dMaxValue, allowOutOfBounds) {
}
ControlLinPotmeterBehavior::~ControlLinPotmeterBehavior() {
}
ControlAudioTaperPotBehavior::ControlAudioTaperPotBehavior(
double minDB, double maxDB,
double neutralParameter)
: ControlPotmeterBehavior(0.0, db2ratio(maxDB), false),
m_neutralParameter(neutralParameter),
m_minDB(minDB),
m_maxDB(maxDB),
m_offset(db2ratio(m_minDB)) {
m_midiCorrection = ceil(m_neutralParameter * 127) - (m_neutralParameter * 127);
}
ControlAudioTaperPotBehavior::~ControlAudioTaperPotBehavior() {
}
double ControlAudioTaperPotBehavior::valueToParameter(double dValue) {
double dParam = 1.0;
if (dValue <= 0.0) {
return 0;
} else if (dValue < 1.0) {
// db + linear overlay to reach
// m_minDB = 0
// 0 dB = m_neutralParameter
double overlay = m_offset * (1 - dValue);
if (m_minDB) {
dParam = (ratio2db(dValue + overlay) - m_minDB) / m_minDB * m_neutralParameter * -1;
} else {
dParam = dValue * m_neutralParameter;
}
} else if (dValue == 1.0) {
dParam = m_neutralParameter;
} else if (dValue < m_dMaxValue) {
// m_maxDB = 1
// 0 dB = m_neutralParameter
dParam = (ratio2db(dValue) / m_maxDB * (1 - m_neutralParameter)) + m_neutralParameter;
}
//qDebug() << "ControlAudioTaperPotBehavior::valueToParameter" << "value =" << dValue << "dParam =" << dParam;
return dParam;
}
double ControlAudioTaperPotBehavior::parameterToValue(double dParam) {
double dValue = 1;
if (dParam <= 0.0) {
dValue = 0;
} else if (dParam < m_neutralParameter) {
// db + linear overlay to reach
// m_minDB = 0
// 0 dB = m_neutralParameter;
if (m_minDB) {
double db = (dParam * m_minDB / (m_neutralParameter * -1)) + m_minDB;
dValue = (db2ratio(db) - m_offset) / (1 - m_offset) ;
} else {
dValue = dParam / m_neutralParameter;
}
} else if (dParam == m_neutralParameter) {
dValue = 1.0;
} else if (dParam <= 1.0) {
// m_maxDB = 1
// 0 dB = m_neutralParame;
dValue = db2ratio((dParam - m_neutralParameter) * m_maxDB / (1 - m_neutralParameter));
}
//qDebug() << "ControlAudioTaperPotBehavior::parameterToValue" << "dValue =" << dValue << "dParam =" << dParam;
return dValue;
}
double ControlAudioTaperPotBehavior::midiValueToParameter(double midiValue) {
double dParam;
if (m_neutralParameter && m_neutralParameter != 1.0) {
double neutralTest = (midiValue - m_midiCorrection) / 127.0;
if (neutralTest < m_neutralParameter) {
dParam = midiValue /
(127.0 + m_midiCorrection / m_neutralParameter);
} else {
// m_midicorrection is allways < 1, so NaN check required
dParam = (midiValue - m_midiCorrection / m_neutralParameter) /
(127.0 - m_midiCorrection / m_neutralParameter);
}
} else {
dParam = midiValue / 127.0;
}
return dParam;
}
double ControlAudioTaperPotBehavior::valueToMidiParameter(double dValue) {
// 7-bit MIDI has 128 values [0, 127]. This means there is no such thing as
// center. The industry convention is that 64 is center.
// We fake things a little bit here to hit the m_neutralParameter
// always on a full Midi integer
double dParam = valueToParameter(dValue);
double dMidiParam = dParam * 127.0;
if (m_neutralParameter && m_neutralParameter != 1.0) {
if (dParam < m_neutralParameter) {
dMidiParam += m_midiCorrection * dParam / m_neutralParameter;
} else {
dMidiParam += m_midiCorrection * (1 - dParam) / m_neutralParameter;
}
}
return dMidiParam;
}
void ControlAudioTaperPotBehavior::setValueFromMidiParameter(MidiOpCode o, double dMidiParam,
ControlDoublePrivate* pControl) {
Q_UNUSED(o);
double dParam = midiValueToParameter(dMidiParam);
pControl->set(parameterToValue(dParam), NULL);
}
double ControlTTRotaryBehavior::valueToParameter(double dValue) {
return (dValue * 200.0 + 64) / 127.0;
}
double ControlTTRotaryBehavior::parameterToValue(double dParam) {
dParam *= 128.0;
// Non-linear scaling
double temp = ((dParam - 64.0) * (dParam - 64.0)) / 64.0;
if (dParam - 64 < 0) {
temp = -temp;
}
return temp;
}
// static
const int ControlPushButtonBehavior::kPowerWindowTimeMillis = 300;
const int ControlPushButtonBehavior::kLongPressLatchingTimeMillis = 300;
ControlPushButtonBehavior::ControlPushButtonBehavior(ButtonMode buttonMode,
int iNumStates)
: m_buttonMode(buttonMode),
m_iNumStates(iNumStates) {
}
void ControlPushButtonBehavior::setValueFromMidiParameter(
MidiOpCode o, double dParam, ControlDoublePrivate* pControl) {
// Calculate pressed State of the midi Button
// Some controller like the RMX2 are sending always MIDI_NOTE_ON
// with a changed dParam 127 for pressed an 0 for released.
// Other controller like the VMS4 are using MIDI_NOTE_ON
// And MIDI_NOTE_OFF and a velocity value like a piano keyboard
bool pressed = true;
if (o == MIDI_NOTE_OFF || dParam == 0) {
// MIDI_NOTE_ON + 0 should be interpreted a released according to
// http://de.wikipedia.org/wiki/Musical_Instrument_Digital_Interface
// looking for MIDI_NOTE_ON doesn't seem to work...
pressed = false;
}
// This block makes push-buttons act as power window buttons.
if (m_buttonMode == POWERWINDOW && m_iNumStates == 2) {
if (pressed) {
// Toggle on press
double value = pControl->get();
pControl->set(!value, NULL);
m_pushTimer.setSingleShot(true);
m_pushTimer.start(kPowerWindowTimeMillis);
} else if (!m_pushTimer.isActive()) {
// Disable after releasing a long press
pControl->set(0., NULL);
}
} else if (m_buttonMode == TOGGLE || m_buttonMode == LONGPRESSLATCHING) {
// This block makes push-buttons act as toggle buttons.
if (m_iNumStates > 1) { // multistate button
if (pressed) {
// This is a possibly race condition if another writer wants
// to change the value at the same time. We allow the race here,
// because this is possibly what the user expects if he changes
// the same control from different devices.
double value = pControl->get();
value = (int)(value + 1.) % m_iNumStates;
pControl->set(value, NULL);
if (m_buttonMode == LONGPRESSLATCHING) {
m_pushTimer.setSingleShot(true);
m_pushTimer.start(kLongPressLatchingTimeMillis);
}
} else {
double value = pControl->get();
if (m_buttonMode == LONGPRESSLATCHING &&
m_pushTimer.isActive() && value >= 1.) {
// revert toggle if button is released too early
value = (int)(value - 1.) % m_iNumStates;
pControl->set(value, NULL);
}
}
}
} else { // Not a toggle button (trigger only when button pushed)
if (pressed) {
pControl->set(1., NULL);
} else {
pControl->set(0., NULL);
}
}
}