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1 /**
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2 * Copyright (c) 2014, 2015, Enzien Audio Ltd.
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3 *
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4 * Permission to use, copy, modify, and/or distribute this software for any
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5 * purpose with or without fee is hereby granted, provided that the above
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6 * copyright notice and this permission notice appear in all copies.
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7 *
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8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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9 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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10 * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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11 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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12 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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13 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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14 * PERFORMANCE OF THIS SOFTWARE.
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15 */
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16
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17 #include "ControlSystem.h"
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18 #include "HvTable.h"
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19
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20 void cSystem_onMessage(HvBase *_c, void *o, int letIn, const HvMessage *const m,
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21 void (*sendMessage)(HvBase *, int, const HvMessage *const)) {
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22
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23 HvMessage *n = HV_MESSAGE_ON_STACK(1);
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24 if (msg_compareSymbol(m, 0, "samplerate")) {
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25 msg_initWithFloat(n, msg_getTimestamp(m), (float) ctx_getSampleRate(_c));
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26 } else if (msg_compareSymbol(m, 0, "numInputChannels")) {
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27 msg_initWithFloat(n, msg_getTimestamp(m), (float) ctx_getNumInputChannels(_c));
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28 } else if (msg_compareSymbol(m, 0, "numOutputChannels")) {
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29 msg_initWithFloat(n, msg_getTimestamp(m), (float) ctx_getNumOutputChannels(_c));
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30 } else if (msg_compareSymbol(m, 0, "currentTime")) {
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31 msg_initWithFloat(n, msg_getTimestamp(m), (float) msg_getTimestamp(m));
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32 } else if (msg_compareSymbol(m, 0, "table")) {
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33 // NOTE(mhroth): no need to check message format for symbols as table lookup will fail otherwise
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34 HvTable *o = ctx_getTableForHash(_c, msg_getHash(m,1));
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35 if (o != NULL) {
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36 if (msg_compareSymbol(m, 2, "length")) {
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37 msg_initWithFloat(n, msg_getTimestamp(m), (float) hTable_getLength(o));
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38 } else if (msg_compareSymbol(m, 2, "size")) {
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39 msg_initWithFloat(n, msg_getTimestamp(m), (float) hTable_getSize(o));
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40 } else if (msg_compareSymbol(m, 2, "head")) {
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41 msg_initWithFloat(n, msg_getTimestamp(m), (float) hTable_getHead(o));
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42 } else return;
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43 } else return;
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44 } else return;
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45 sendMessage(_c, 0, n);
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46 }
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