void cSystem_onMessage(HvBase *_c, void *o, int letIn, const HvMessage *const m,
void (*sendMessage)(HvBase *, int, const HvMessage *const)) {
HvMessage *n = HV_MESSAGE_ON_STACK(1);
if (msg_compareSymbol(m, 0, "samplerate")) {
msg_initWithFloat(n, msg_getTimestamp(m), (float) ctx_getSampleRate(_c));
} else if (msg_compareSymbol(m, 0, "numInputChannels")) {
msg_initWithFloat(n, msg_getTimestamp(m), (float) ctx_getNumInputChannels(_c));
} else if (msg_compareSymbol(m, 0, "numOutputChannels")) {
msg_initWithFloat(n, msg_getTimestamp(m), (float) ctx_getNumOutputChannels(_c));
} else if (msg_compareSymbol(m, 0, "currentTime")) {
msg_initWithFloat(n, msg_getTimestamp(m), (float) msg_getTimestamp(m));
} else if (msg_compareSymbol(m, 0, "table")) {
// NOTE(mhroth): no need to check message format for symbols as table lookup will fail otherwise
HvTable *table = ctx_getTableForHash(_c, msg_getHash(m,1));
if (table != NULL) {
if (msg_compareSymbol(m, 2, "length")) {
msg_initWithFloat(n, msg_getTimestamp(m), (float) hTable_getLength(table));
} else if (msg_compareSymbol(m, 2, "size")) {
msg_initWithFloat(n, msg_getTimestamp(m), (float) hTable_getSize(table));
} else if (msg_compareSymbol(m, 2, "head")) {
msg_initWithFloat(n, msg_getTimestamp(m), (float) hTable_getHead(table));
} else return;
} else return;
} else return;
sendMessage(_c, 0, n);
}
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;
}
}
void cVar_onMessage(HvBase *_c, ControlVar *o, int letIn, const HvMessage *const m,
void (*sendMessage)(HvBase *, int, const HvMessage *const)) {
switch (letIn) {
case 0: {
switch (msg_getType(m,0)) {
case HV_MSG_BANG: {
HvMessage *n = HV_MESSAGE_ON_STACK(1);
if (o->e.type == HV_MSG_FLOAT) msg_initWithFloat(n, msg_getTimestamp(m), o->e.data.f);
else if (o->e.type == HV_MSG_HASH) msg_initWithHash(n, msg_getTimestamp(m), o->e.data.h);
else return;
sendMessage(_c, 0, n);
break;
}
case HV_MSG_FLOAT: {
o->e.type = HV_MSG_FLOAT;
o->e.data.f = msg_getFloat(m,0);
sendMessage(_c, 0, m);
break;
}
case HV_MSG_SYMBOL:
case HV_MSG_HASH: {
o->e.type = HV_MSG_HASH;
o->e.data.h = msg_getHash(m,0);
sendMessage(_c, 0, m);
break;
}
default: return;
}
break;
}
case 1: {
switch (msg_getType(m,0)) {
case HV_MSG_FLOAT: {
o->e.type = HV_MSG_FLOAT;
o->e.data.f = msg_getFloat(m,0);
break;
}
case HV_MSG_SYMBOL:
case HV_MSG_HASH: {
o->e.type = HV_MSG_HASH;
o->e.data.h = msg_getHash(m,0);
break;
}
default: break;
}
}
default: return;
}
}
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 hv_vscheduleMessageForReceiver(HvBase *c, const char *receiverName, const double delayMs, const char *format, ...) {
va_list ap;
va_start(ap, format);
const int numElem = (int) hv_strlen(format);
HvMessage *m = HV_MESSAGE_ON_STACK(numElem);
msg_init(m, numElem, c->blockStartTimestamp + (hv_uint32_t) (hv_max_d(0.0, delayMs)*ctx_getSampleRate(c)/1000.0));
for (int i = 0; i < numElem; i++) {
switch (format[i]) {
case 'b': msg_setBang(m,i); break;
case 'f': msg_setFloat(m, i, (float) va_arg(ap, double)); break;
case 's': msg_setSymbol(m, i, (char *) va_arg(ap, char *)); break;
default: break;
}
}
ctx_scheduleMessageForReceiver(c, receiverName, m);
va_end(ap);
}
void __hv_sample_f(HvBase *_c, SignalSample *o, hv_bInf_t bIn,
void (*sendMessage)(HvBase *, int, const HvMessage *)) {
if (o->i != __HV_SAMPLE_NULL) {
#if HV_SIMD_AVX || HV_SIMD_SSE
float out = bIn[o->i & HV_N_SIMD_MASK];
#elif HV_SIMD_NEON
float out = bIn[o->i & HV_N_SIMD_MASK];
#else // HV_SIMD_NONE
float out = bIn;
#endif
HvMessage *n = HV_MESSAGE_ON_STACK(1);
hv_uint32_t ts = (o->i + HV_N_SIMD) & ~HV_N_SIMD_MASK; // start of next block
msg_initWithFloat(n, ts, out);
ctx_scheduleMessage(_c, n, sendMessage, 0);
o->i = __HV_SAMPLE_NULL; // reset the index
}
}
void ctx_scheduleMessageForReceiverV(HvBase *const _c, const char *name,
const hv_uint32_t timestamp, const char *format, ...) {
va_list ap;
va_start(ap, format);
const int numElem = (int) hv_strlen(format);
HvMessage *m = HV_MESSAGE_ON_STACK(numElem);
msg_init(m, numElem, timestamp);
for (int i = 0; i < numElem; i++) {
switch (format[i]) {
case 'b': msg_setBang(m,i); break;
case 'f': msg_setFloat(m, i, (float) va_arg(ap, double)); break;
case 's': msg_setSymbol(m, i, (char *) va_arg(ap, char *)); break;
default: break;
}
}
_c->f_scheduleMessageForReceiver(_c, name, m);
va_end(ap);
}
void cTabread_onMessage(HvBase *_c, ControlTabread *o, int letIn, const HvMessage *const m,
void (*sendMessage)(HvBase *, int, const HvMessage *const)) {
switch (letIn) {
case 0: {
if (msg_isFloat(m,0) && msg_getFloat(m,0) >= 0.0f && o->table != NULL) {
const hv_uint32_t x = (hv_uint32_t) msg_getFloat(m,0);
if (x < hTable_getSize(o->table)) {
HvMessage *n = HV_MESSAGE_ON_STACK(1);
msg_initWithFloat(n, msg_getTimestamp(m), hTable_getBuffer(o->table)[x]);
sendMessage(_c, 0, n);
}
}
break;
}
case 1: {
if (msg_isHashLike(m,0)) {
o->table = ctx_getTableForHash(_c, msg_getHash(m,0));
}
break;
}
default: return;
}
}