mirror
/
osci-render
kopia lustrzana https://github.com/jameshball/osci-render
1
0
Forkuj 0
Kod Zgłoszenia Packages Projekty Wydania Wiki Aktywność

Further experimenting with interesting shapes

pull/35/head
James Ball 2020-01-22 22:31:53 +00:00
rodzic 121ac72307
commit 402fc909fc
2 zmienionych plików z 21 dodań i 13 usunięć
Pokaż statystyki Ściągnij plik aktualizacji Ściągnij plik porównania Expand all files Collapse all files

5
src/AudioClient.java
Wyświetl plik

@ -10,6 +10,11 @@ public class AudioClient {
player.start(); player.start();
while (true) { while (true) {
float currentTime = System.nanoTime() - startTime; float currentTime = System.nanoTime() - startTime;
if (currentTime > 100000) {
startTime = System.nanoTime();
}
AudioPlayer.setFrequency(0.1f);
AudioPlayer.drawLine(0, 0, 0.5f * (float) Math.sin(2 * Math.PI * (currentTime / 100000f)), 0.5f * (float) Math.cos(2 * Math.PI * (currentTime / 100000f))); AudioPlayer.drawLine(0, 0, 0.5f * (float) Math.sin(2 * Math.PI * (currentTime / 100000f)), 0.5f * (float) Math.cos(2 * Math.PI * (currentTime / 100000f)));
} }
} }

29
src/AudioPlayer.java
Wyświetl plik

@ -6,10 +6,12 @@ public class AudioPlayer extends Thread {
private static float count = 1; private static float count = 1;
private static volatile boolean stopped = false; private static volatile boolean stopped = false;
public static float x1; private static float x1;
public static float y1; private static float y1;
public static float x2; private static float x2;
public static float y2; private static float y2;
private static float FREQUENCY = 440f;
static void render(XtStream stream, Object input, Object output, int frames, static void render(XtStream stream, Object input, Object output, int frames,
double time, long position, boolean timeValid, long error, Object user) { double time, long position, boolean timeValid, long error, Object user) {
@ -18,15 +20,12 @@ public class AudioPlayer extends Thread {
count++; count++;
for (int f = 0; f < frames; f++) { for (int f = 0; f < frames; f++) {
float sine = nextSine(format.mix.rate, 440);
float cos = nextCos(format.mix.rate, 440);
for (int c = 0; c < format.outputs; c++) { for (int c = 0; c < format.outputs; c++) {
float xMid = (x1 + x2) / 2f; float xMid = (x1 + x2) / 2f;
float yMid = (y1 + y2) / 2f; float yMid = (y1 + y2) / 2f;
((float[]) output)[f * format.outputs] = xMid + (Math.abs(x2 - x1) / 2f) * sine; ((float[]) output)[f * format.outputs] = xMid + (Math.abs(x2 - x1) / 2f) * nextSine(FREQUENCY);
((float[]) output)[f * format.outputs + 1] = yMid + (Math.abs(y2 - y1) / 2f) * sine; ((float[]) output)[f * format.outputs + 1] = yMid + (Math.abs(y2 - y1) / 2f) * nextSine(FREQUENCY);
} }
} }
} }
@ -38,15 +37,19 @@ public class AudioPlayer extends Thread {
AudioPlayer.y2 = y2; AudioPlayer.y2 = y2;
} }
private static float nextSine(double sampleRate, double frequency) { public static void setFrequency(float frequency) {
phase += frequency / sampleRate; AudioPlayer.FREQUENCY = frequency;
}
public static float nextSine(double frequency) {
phase += frequency / FORMAT.mix.rate;
if (phase >= 1.0) if (phase >= 1.0)
phase = -1.0; phase = -1.0;
return (float) Math.sin(phase * Math.PI); return (float) Math.sin(phase * Math.PI);
} }
private static float nextCos(double sampleRate, double frequency) { public static float nextCos(double frequency) {
phase += frequency / sampleRate; phase += frequency / FORMAT.mix.rate;
if (phase >= 1.0) if (phase >= 1.0)
phase = -1.0; phase = -1.0;
return (float) Math.cos(phase * Math.PI); return (float) Math.cos(phase * Math.PI);