mirror of
https://github.com/thestk/stk
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Version 3.2
This commit is contained in:
Gary Scavone
committed by
Stephen Sinclair
Stephen Sinclair
parent
4b6500d3de
commit
3f126af4e5
171
projects/effects/effects.cpp
Normal file
171
projects/effects/effects.cpp
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/************** Effects Program *********************/
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#include "RtDuplex.h"
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#include "SKINI11.h"
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#include "SKINI11.msg"
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#include "Envelope.h"
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#include "PRCRev.h"
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#include "JCRev.h"
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#include "NRev.h"
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#include "Echo.h"
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#include "PitShift.h"
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#include "Chorus.h"
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// The input control handler.
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#include "Controller.h"
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void usage(void) {
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/* Error function in case of incorrect command-line argument specifications */
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printf("\nuseage: effects flag \n");
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printf(" where flag = -ip for realtime SKINI input by pipe\n");
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printf(" (won't work under Win95/98),\n");
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printf(" and flag = -is for realtime SKINI input by socket.\n");
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exit(0);
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}
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int main(int argc,char *argv[])
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{
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MY_FLOAT inSample = 0.0;
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MY_FLOAT lastSample = 0.0;
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MY_FLOAT byte2, byte3;
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long i, nTicks;
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int type, effect = 0;
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int controlMask = 0;
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bool done;
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Controller *controller;
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if (argc != 2) usage();
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if (!strcmp(argv[1],"-is") )
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controlMask |= STK_SOCKET;
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else if (!strcmp(argv[1],"-ip") )
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controlMask |= STK_PIPE;
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else
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usage();
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Envelope *envelope = new Envelope;
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PRCRev *prcrev = new PRCRev(2.0);
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JCRev *jcrev = new JCRev(2.0);
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NRev *nrev = new NRev(2.0);
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Echo *echo = new Echo(SRATE); // one second delay
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PitShift *shifter = new PitShift();
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Chorus *chorus = new Chorus(5000.0);
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SKINI11 *score = new SKINI11();
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RtDuplex *inout;
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try {
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inout = new RtDuplex(1, SRATE);
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// Instantiate the input message controller.
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controller = new Controller( controlMask );
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}
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catch (StkError& m) {
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m.printMessage();
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exit(0);
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}
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// The runtime loop begins here:
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done = FALSE;
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while (!done) {
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nTicks = controller->getNextMessage();
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if (nTicks == -1)
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done = TRUE;
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for (i=0; i<nTicks; i++) {
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if (effect == 0)
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inSample = inout->tick(envelope->tick() * echo->tick(lastSample));
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else if (effect == 1)
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inSample = inout->tick(envelope->tick() * shifter->tick(lastSample));
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else if (effect == 2)
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inSample = inout->tick(envelope->tick() * chorus->tick(lastSample));
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else if (effect == 3)
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inSample = inout->tick(envelope->tick() * prcrev->tick(lastSample));
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else if (effect == 4)
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inSample = inout->tick(envelope->tick() * jcrev->tick(lastSample));
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else if (effect == 5)
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inSample = inout->tick(envelope->tick() * nrev->tick(lastSample));
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lastSample = inSample;
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}
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type = controller->getType();
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if (type > 0) {
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// parse the input control message
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byte2 = controller->getByte2();
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byte3 = controller->getByte3();
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switch(type) {
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case __SK_NoteOn_:
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if (byte3 == 0) { // velocity is zero ... really a NoteOff
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envelope->setRate(0.001);
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envelope->setTarget(0.0);
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}
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else { // really a NoteOn
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envelope->setRate(0.001);
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envelope->setTarget(1.0);
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}
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break;
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case __SK_NoteOff_:
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envelope->setRate(0.001);
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envelope->setTarget(0.0);
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break;
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case __SK_ControlChange_:
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if (byte2 == 20) effect = (int) byte3; // effect change
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else if (byte2 == 44) { // effects mix
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echo->setEffectMix(byte3*NORM_7);
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shifter->setEffectMix(byte3*NORM_7);
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chorus->setEffectMix(byte3*NORM_7);
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prcrev->setEffectMix(byte3*NORM_7);
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jcrev->setEffectMix(byte3*NORM_7);
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nrev->setEffectMix(byte3*NORM_7);
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}
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else if (byte2 == 22) { // effect1 parameter change
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echo->setDelay(byte3*NORM_7*SRATE*0.95 + 2);
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shifter->setShift(byte3*NORM_7*3 + 0.25);
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chorus->setModFreq(byte3*NORM_7);
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}
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else if (byte2 == 23) { // effect1 parameter change
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chorus->setModDepth(byte3*NORM_7*0.2);
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}
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break;
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}
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}
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}
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envelope->setRate(0.001);
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envelope->setTarget(0.0);
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for (i=0;i<SRATE;i++) { /* let the sound settle a bit */
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if (effect == 0)
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inSample = inout->tick(envelope->tick() * echo->tick(lastSample));
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else if (effect == 1)
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inSample = inout->tick(envelope->tick() * shifter->tick(lastSample));
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else if (effect == 2)
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inSample = inout->tick(envelope->tick() * chorus->tick(lastSample));
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else if (effect == 3)
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inSample = inout->tick(envelope->tick() * prcrev->tick(lastSample));
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else if (effect == 4)
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inSample = inout->tick(envelope->tick() * jcrev->tick(lastSample));
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else if (effect == 5)
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inSample = inout->tick(envelope->tick() * nrev->tick(lastSample));
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lastSample = inSample;
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}
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delete inout;
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delete echo;
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delete shifter;
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delete chorus;
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delete prcrev;
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delete jcrev;
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delete nrev;
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delete score;
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delete envelope;
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delete controller;
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printf("effects finished ... goodbye.\n");
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return 0;
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}
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