static void sEnv_sendMessage(HvBase *_c, SignalEnvelope *o, float rms,
void (*sendMessage)(HvBase *, int, const HvMessage *)) {
// finish RMS calculation. sqrt is removed as it can be combined with the log operation.
// result is normalised such that 1 RMS == 100 dB
rms = 10.0f * log10f(rms) + 100.0f;
// prepare the outgoing message. Schedule it at the beginning of the next block.
HvMessage *const m = HV_MESSAGE_ON_STACK(1);
msg_initWithFloat(m, ctx_getBlockStartTimestamp(_c) + HV_N_SIMD, (rms < 0.0f) ? 0.0f : rms);
ctx_scheduleMessage(Base(_c), m, sendMessage, 0);
hv_memcpy(o->buffer, o->buffer+o->period, sizeof(float)*(o->numSamplesInBuffer - o->period));
o->numSamplesInBuffer -= o->period;
}
void cSlice_onMessage(HvBase *_c, ControlSlice *o, int letIn, const HvMessage *const m,
void (*sendMessage)(HvBase *, int, const HvMessage *const)) {
switch (letIn) {
case 0: {
// if the start point is greater than the number of elements in the source message, do nothing
if (o->i < msg_getNumElements(m)) {
int x = msg_getNumElements(m) - o->i; // number of elements in the new message
if (o->n > 0) x = hv_min_i(x, o->n);
HvMessage *n = HV_MESSAGE_ON_STACK(x);
msg_init(n, x, msg_getTimestamp(m));
hv_memcpy(&n->elem, &m->elem+o->i, x*sizeof(Element));
sendMessage(_c, 0, n);
} else {
// if nothing can be sliced, send a bang out of the right outlet
HvMessage *n = HV_MESSAGE_ON_STACK(1);
msg_initWithBang(n, msg_getTimestamp(m));
sendMessage(_c, 1, n);
}
break;
}
case 1: {
if (msg_isFloat(m,0)) {
o->i = (int) msg_getFloat(m,0);
if (msg_isFloat(m,1)) {
o->n = (int) msg_getFloat(m,1);
}
}
break;
}
case 2: {
if (msg_isFloat(m,0)) {
o->n = (int) msg_getFloat(m,0);
}
break;
}
default: break;
}
}
