63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/**
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* Copyright (c) 2014-2018 Enzien Audio Ltd.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "HvControlSlice.h"
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hv_size_t cSlice_init(ControlSlice *o, int i, int n) {
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o->i = i;
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o->n = n;
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return 0;
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}
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void cSlice_onMessage(HeavyContextInterface *_c, ControlSlice *o, int letIn, const HvMessage *m,
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void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *)) {
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switch (letIn) {
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case 0: {
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// if the start point is greater than the number of elements in the source message, do nothing
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if (o->i < msg_getNumElements(m)) {
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int x = msg_getNumElements(m) - o->i; // number of elements in the new message
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if (o->n > 0) x = hv_min_i(x, o->n);
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HvMessage *n = HV_MESSAGE_ON_STACK(x);
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msg_init(n, x, msg_getTimestamp(m));
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hv_memcpy(&n->elem, &m->elem+o->i, x*sizeof(Element));
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sendMessage(_c, 0, n);
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} else {
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// if nothing can be sliced, send a bang out of the right outlet
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HvMessage *n = HV_MESSAGE_ON_STACK(1);
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msg_initWithBang(n, msg_getTimestamp(m));
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sendMessage(_c, 1, n);
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}
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break;
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}
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case 1: {
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if (msg_isFloat(m,0)) {
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o->i = (int) msg_getFloat(m,0);
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if (msg_isFloat(m,1)) {
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o->n = (int) msg_getFloat(m,1);
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}
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}
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break;
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}
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case 2: {
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if (msg_isFloat(m,0)) {
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o->n = (int) msg_getFloat(m,0);
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}
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break;
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}
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default: break;
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}
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}
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