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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <math.h>
#include <time.h>
#include <qwidget.h>
#include <qstring.h>
#include <qslider.h>
#include <qcheckbox.h>
#include <qlabel.h>
#include <qvbox.h>
#include <qhbox.h>
#include <qspinbox.h>
#include <qradiobutton.h>
#include <qpushbutton.h>
#include <qdialog.h>
#include <qpainter.h>
#include <alsa/asoundlib.h>
#include "synthdata.h"
#include "m_noise.h"
#include "port.h"
M_noise::M_noise(QWidget* parent, const char *name, SynthData *p_synthdata)
: Module(3, parent, name, p_synthdata) {
QString qs;
int l1, l2;
long t;
M_type = M_type_noise;
rate = 5;
level = 0.5;
count = 0;
setGeometry(MODULE_NEW_X, MODULE_NEW_Y, MODULE_NOISE_WIDTH, MODULE_NOISE_HEIGHT);
port_white = new Port("White", PORT_OUT, 0, this, synthdata);
port_white->move(width() - port_white->width(), 35);
port_white->outType = outType_audio;
portList.append(port_white);
port_pink = new Port("Pink", PORT_OUT, 1, this, synthdata);
port_pink->move(width() - port_pink->width(), 55);
port_pink->outType = outType_audio;
portList.append(port_pink);
port_random = new Port("Random", PORT_OUT, 2, this, synthdata);
port_random->move(width() - port_random->width(), 75);
port_random->outType = outType_audio;
portList.append(port_random);
qs.sprintf("Noise ID %d", moduleID);
configDialog->setCaption(qs);
configDialog->addSlider(0, 10, rate, "Random Rate", &rate);
configDialog->addSlider(0, 1, level, "Random Level", &level);
r = 0;
for (l2 = 0; l2 < 3; l2++) {
buf[l2] = 0;
}
t = time(NULL) % 1000000;
srand(abs(t - 10000 * (t % 100)));
}
M_noise::~M_noise() {
}
void M_noise::noteOnEvent(int osc) {
}
void M_noise::noteOffEvent(int osc) {
}
void M_noise::generateCycle() {
int l1, l2, l3, random_rate;
double white_noise;
double randmax;
if (!cycleReady) {
cycleProcessing = true;
random_rate = (int)(5000.0 * (double)rate + 100.0);
randmax = 2.0 / (double)RAND_MAX;
for (l2 = 0; l2 < synthdata->cyclesize; l2++) {
count++;
if (count > random_rate) {
count = 0;
r = level * (double)rand() * randmax - 1.0;
}
white_noise = (double)rand() * randmax - 1.0;
buf[0] = 0.99765 * buf[0] + white_noise * 0.099046;
buf[1] = 0.963 * buf[1] + white_noise * 0.2965164;
buf[2] = 0.57 * buf[2] + white_noise * 1.0526913;
data[1][0][l2] = buf[0] + buf[1] + buf[2] + white_noise * 0.1848;
for (l1 = 0; l1 < synthdata->poly; l1++) {
data[0][l1][l2] = white_noise;
data[1][l1][l2] = data[1][0][l2];
data[2][l1][l2] = r;
}
}
}
cycleProcessing = false;
cycleReady = true;
}
void M_noise::showConfigDialog() {
}
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