mirror of
https://github.com/thestk/stk
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344 lines
10 KiB
C++
344 lines
10 KiB
C++
/************** Test Main Program Individual Voice *********************/
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#include "SKINImsg.h"
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#include "Instrmnt.h"
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#include "JCRev.h"
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#include "Drone.h"
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#include "Sitar.h"
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#include "Tabla.h"
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#include "VoicDrum.h"
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#include "Messager.h"
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#include "RtAudio.h"
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#include <signal.h>
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#include <cstring>
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#include <iostream>
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#include <algorithm>
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#include <cstdlib>
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using std::min;
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using namespace stk;
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StkFloat float_random(StkFloat max) // Return random float between 0.0 and max
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{
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StkFloat temp = (StkFloat) (max * rand() / (RAND_MAX + 1.0) );
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return temp;
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}
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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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std::cout << "\nuseage: ragamat flags \n";
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std::cout << " where flag = -s RATE to specify a sample rate,\n";
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std::cout << " flag = -ip for realtime SKINI input by pipe\n";
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std::cout << " (won't work under Win95/98),\n";
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std::cout << " and flag = -is <port> for realtime SKINI input by socket.\n";
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exit(0);
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}
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bool done;
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static void finish(int ignore){ done = true; }
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// The TickData structure holds all the class instances and data that
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// are shared by the various processing functions.
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struct TickData {
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JCRev reverbs[2];
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Drone drones[3];
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Sitar sitar;
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VoicDrum voicDrums;
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Tabla tabla;
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Messager messager;
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Skini::Message message;
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StkFloat lastSample;
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StkFloat t60;
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int counter;
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bool settling;
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bool haveMessage;
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StkFloat droneChance, noteChance;
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StkFloat drumChance, voiceChance;
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int tempo;
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int chanceCounter;
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int key;
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int ragaStep;
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int ragaPoint;
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int endPhase;
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StkFloat rateScaler;
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// Default constructor.
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TickData()
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: t60(4.0), counter(0),
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settling( false ), haveMessage( false ), droneChance(0.01), noteChance(0.01),
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drumChance(0.0), voiceChance(0.0), tempo(3000), chanceCounter(3000), key(0), ragaPoint(6), endPhase(0) {}
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};
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// Raga key numbers and drone frequencies.
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const int ragaUp[2][13] = {{57, 60, 62, 64, 65, 68, 69, 71, 72, 76, 77, 81},
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{52, 54, 55, 57, 59, 60, 63, 64, 66, 67, 71, 72}};
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const int ragaDown[2][13] = {{57, 60, 62, 64, 65, 67, 69, 71, 72, 76, 79, 81},
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{48, 52, 53, 55, 57, 59, 60, 64, 66, 68, 70, 72}};
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StkFloat droneFreqs[3] = { 55.0, 82.5, 220.0 };
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#define DELTA_CONTROL_TICKS 64 // default sample frames between control input checks
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// The processMessage() function encapsulates the handling of control
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// messages. It can be easily relocated within a program structure
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// depending on the desired scheduling scheme.
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void processMessage( TickData* data )
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{
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register unsigned int value1 = data->message.intValues[0];
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register StkFloat value2 = data->message.floatValues[1];
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register StkFloat temp = value2 * ONE_OVER_128;
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switch( data->message.type ) {
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case __SK_Exit_:
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if ( data->settling == false ) goto settle;
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if ( data->endPhase < 5 ) return;
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done = true;
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return;
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case __SK_ControlChange_:
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switch ( value1 ) {
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case 1:
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data->droneChance = temp;
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break;
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case 2:
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data->noteChance = temp;
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break;
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case 4:
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data->voiceChance = temp;
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break;
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case 7:
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data->tempo = (int) (11025 - value2 * 70.0 );
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break;
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case 11:
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data->drumChance = temp;
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break;
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case 64:
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if ( value2 == 0.0 ) {
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data->key = 1;
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droneFreqs[0] = 55.0;
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droneFreqs[1] = 82.5;
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droneFreqs[2] = 220.0;
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}
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else {
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data->key = 0;
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droneFreqs[0] = 82.5;
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droneFreqs[1] = 123.5;
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droneFreqs[2] = 330.0;
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}
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break;
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default:
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break;
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}
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} // end of type switch
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data->haveMessage = false;
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return;
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settle:
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// Exit and program change messages are preceeded with a short settling period.
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data->counter = (int) (data->t60 * Stk::sampleRate());
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data->drones[1].noteOn( droneFreqs[1], 0.1 );
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data->settling = true;
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std::cout << "What Need Have I for This?" << std::endl;
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}
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// The tick() function handles sample computation and scheduling of
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// control updates. It will be called automatically by RtAudio when
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// the system needs a new buffer of audio samples.
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int tick( void *outputBuffer, void *inputBuffer, unsigned int nBufferFrames,
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double streamTime, RtAudioStreamStatus status, void *dataPointer )
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{
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TickData *data = (TickData *) dataPointer;
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register StkFloat temp, outs[2], *samples = (StkFloat *) outputBuffer;
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int i, voiceNote, counter, nTicks = (int) nBufferFrames;
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while ( nTicks > 0 && !done ) {
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if ( !data->haveMessage ) {
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data->messager.popMessage( data->message );
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if ( data->message.type > 0 ) {
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data->counter = (long) (data->message.time * Stk::sampleRate());
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data->haveMessage = true;
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}
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else
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data->counter = DELTA_CONTROL_TICKS;
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}
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counter = min( nTicks, data->counter );
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data->counter -= counter;
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for ( i=0; i<counter; i++ ) {
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outs[0] = data->reverbs[0].tick( data->drones[0].tick() + data->drones[2].tick()
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+ data->sitar.tick() );
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outs[1] = data->reverbs[1].tick( 1.5 * data->drones[1].tick() + 0.5 * data->voicDrums.tick()
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+ 0.5 * data->tabla.tick() );
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// Mix a little left to right and back.
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*samples++ = outs[0] + 0.3 * outs[1];
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*samples++ = outs[1] + 0.3 * outs[0];
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nTicks--;
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// Do a bunch of random controls unless settling down to end.
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if ( data->settling ) {
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if ( data->counter == 0 ) {
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data->counter = (int) (data->t60 * Stk::sampleRate());
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if ( data->endPhase == 0 ) {
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data->drones[2].noteOn( droneFreqs[2], 0.1 );
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std::cout << "What Need Have I for This?" << std::endl;
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}
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else if ( data->endPhase == 1 ) {
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data->drones[0].noteOn( droneFreqs[0], 0.1 );
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std::cout << "RagaMatic finished ... " << std::endl;
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}
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else if ( data->endPhase == 2 ) {
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std::cout << "All is Bliss ... " << std::endl;
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}
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else if ( data->endPhase == 3 ) {
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std::cout << "All is Bliss ..." << std::endl;
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}
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data->endPhase++;
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}
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}
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else {
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data->chanceCounter--;
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if (data->chanceCounter == 0) {
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data->chanceCounter = (int) ( data->tempo / data->rateScaler );
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if ( float_random(1.0) < data->droneChance )
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data->drones[0].noteOn( droneFreqs[0], 0.1 );
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if ( float_random(1.0) < data->droneChance )
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data->drones[1].noteOn( droneFreqs[1], 0.1 );
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if ( float_random(1.0) < data->droneChance )
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data->drones[2].noteOn( droneFreqs[2], 0.1 );
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if ( float_random(1.0) < data->noteChance ) {
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temp = float_random(1.0);
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if ( temp < 0.1) data->ragaStep = 0;
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else if (temp < 0.5) data->ragaStep = 1;
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else data->ragaStep = -1;
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data->ragaPoint += data->ragaStep;
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if ( data->ragaPoint < 0 )
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data->ragaPoint -= ( 2 * data->ragaStep );
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if ( data->ragaPoint > 11 ) data->ragaPoint = 11;
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if ( data->ragaStep > 0 )
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data->sitar.noteOn( Midi2Pitch[ragaUp[data->key][data->ragaPoint]],
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0.05 + float_random(0.3) );
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else
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data->sitar.noteOn( Midi2Pitch[ragaDown[data->key][data->ragaPoint]],
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0.05 + float_random(0.3) );
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}
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if ( float_random(1.0) < data->voiceChance ) {
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voiceNote = (int) float_random(11);
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data->voicDrums.noteOn( voiceNote, 0.3 + (0.4 * data->drumChance) +
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float_random(0.3 * data->voiceChance));
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}
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if ( float_random(1.0) < data->drumChance ) {
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voiceNote = (int) float_random(TABLA_NUMWAVES);
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data->tabla.noteOn( voiceNote, 0.2 + (0.2 * data->drumChance) +
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float_random(0.6 * data->drumChance));
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}
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}
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}
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}
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if ( nTicks == 0 ) break;
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// Process control messages.
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if ( data->haveMessage ) processMessage( data );
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}
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return 0;
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}
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int main( int argc, char *argv[] )
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{
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TickData data;
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RtAudio dac;
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int i;
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if ( argc < 2 || argc > 6 ) usage();
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// If you want to change the default sample rate (set in Stk.h), do
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// it before instantiating any objects! If the sample rate is
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// specified in the command line, it will override this setting.
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Stk::setSampleRate( 44100.0 );
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// Parse the command-line arguments.
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unsigned int port = 2001;
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for ( i=1; i<argc; i++ ) {
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if ( !strcmp( argv[i], "-is" ) ) {
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if ( i+1 < argc && argv[i+1][0] != '-' ) port = atoi(argv[++i]);
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data.messager.startSocketInput( port );
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}
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else if (!strcmp( argv[i], "-ip" ) )
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data.messager.startStdInput();
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else if ( !strcmp( argv[i], "-s" ) && ( i+1 < argc ) && argv[i+1][0] != '-')
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Stk::setSampleRate( atoi(argv[++i]) );
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else
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usage();
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}
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// Allocate the dac here.
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RtAudioFormat format = ( sizeof(StkFloat) == 8 ) ? RTAUDIO_FLOAT64 : RTAUDIO_FLOAT32;
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RtAudio::StreamParameters parameters;
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parameters.deviceId = dac.getDefaultOutputDevice();
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parameters.nChannels = 2;
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unsigned int bufferFrames = RT_BUFFER_SIZE;
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try {
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dac.openStream( ¶meters, NULL, format, (unsigned int)Stk::sampleRate(), &bufferFrames, &tick, (void *)&data );
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}
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catch ( RtAudioError& error ) {
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error.printMessage();
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goto cleanup;
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}
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data.reverbs[0].setT60( data.t60 );
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data.reverbs[0].setEffectMix( 0.5 );
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data.reverbs[1].setT60( 2.0 );
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data.reverbs[1].setEffectMix( 0.2 );
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data.drones[0].noteOn( droneFreqs[0], 0.1 );
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data.drones[1].noteOn( droneFreqs[1], 0.1 );
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data.drones[2].noteOn( droneFreqs[2], 0.1 );
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data.rateScaler = 22050.0 / Stk::sampleRate();
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// Install an interrupt handler function.
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(void) signal( SIGINT, finish );
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// If realtime output, set our callback function and start the dac.
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try {
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dac.startStream();
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}
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catch ( RtAudioError &error ) {
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error.printMessage();
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goto cleanup;
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}
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// Setup finished.
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while ( !done ) {
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// Periodically check "done" status.
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Stk::sleep( 50 );
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}
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// Shut down the output stream.
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try {
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dac.closeStream();
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}
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catch ( RtAudioError& error ) {
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error.printMessage();
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}
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cleanup:
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return 0;
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}
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