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 piece-wise function is linear
// from 0 to 64 with slope 128 and from 64 to 127 with slope 126.
double dNorm = valueToParameter(dValue);
return dNorm < 0.5 ? dNorm * 128.0 : dNorm * 126.0 + 1.0;
}
double ControlLinPotmeterBehavior::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);
return math_max(127.0, dNorm * 128.0);
}
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;
}
double ControlNumericBehavior::valueToMidiParameter(double dValue) {
double dParam = valueToParameter(dValue);
return dParam * 127.0;
}
