private void sendEnvelopeFrequency(Receiver rx, int channel, byte[] regs) throws Exception {
int data = (regs[0xc] & 0xff) + ((regs[0xd] << 8) & 0x0f00);
data = data >> FREQ_SCALE_FACTOR;
// 16 bit value, divided into 7/7/2
byte high = (byte) ((data >> 9) & 0x7f); // top 7 bits
byte med = (byte) ((data >> 7) & 0x7f); // middle 7 bits
byte low = (byte) (((data >> 2) & 0x03) << 5); // bottom 2 bits
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_ENVELOPE_FREQ_HIGH, high), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_ENVELOPE_FREQ_MED, med), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_ENVELOPE_FREQ_LOW, low), -1);
}
private void sendLatch(Receiver rx, int channel, boolean enabled) throws Exception {
byte value = enabled ? (byte) 64 : (byte) 0;
if (!enabled) {
// save registers
for (int i = 0; i < registers.length; i++) {
prevRegisters[i] = registers[i];
}
}
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_LATCH, value), -1);
}
private void sendFrequency(Receiver rx, int channel, byte[] regs, int startRegister)
throws Exception {
int data = (regs[startRegister] & 0xff) + ((regs[startRegister + 1] << 8) & 0x0f00);
data = data >> FREQ_SCALE_FACTOR;
byte msb = (byte) ((data >> 5) & 0x7f); // top 7 bits
byte lsb = (byte) ((data << 2) & 0x7c); // lower 5 bits
int cc1 = ((startRegister / 2) + CC_CHANNEL_A_FREQ_MSB);
int cc2 = ((startRegister / 2) + CC_CHANNEL_A_FREQ_LSB);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, (byte) cc1, msb), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, (byte) cc2, lsb), -1);
}
private void resetController(Receiver rx, int channel, byte[] regs) throws Exception {
for (int i = 0; i < 15; i++) {
regs[i] = 0;
}
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_LATCH, 127), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_CHANNEL_A_FREQ_MSB, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_CHANNEL_A_FREQ_LSB, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_CHANNEL_B_FREQ_MSB, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_CHANNEL_B_FREQ_LSB, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_CHANNEL_C_FREQ_MSB, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_CHANNEL_C_FREQ_LSB, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_NOISE_FREQ, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_MIXER, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_CHANNEL_A_LEVEL, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_CHANNEL_B_LEVEL, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_CHANNEL_C_LEVEL, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_ENVELOPE_FREQ_HIGH, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_ENVELOPE_FREQ_MED, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_ENVELOPE_FREQ_LOW, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_ENVELOPE_SHAPE, 0), -1);
rx.send(new ShortMessage(CONTROL_CHANGE, channel, CC_LATCH, 0), -1);
}
private void sendValue(Receiver rx, int channel, byte cc, byte value) throws Exception {
rx.send(new ShortMessage(CONTROL_CHANGE, channel, cc, value), -1);
}