#include <sound.h>
void sound_create_square_wave(uint sample_rate, unsigned short *data, int size,
- uint freq)
+ uint freq, uint channels)
{
const unsigned short amplitude = 16000; /* between 1 and 32767 */
const int period = freq ? sample_rate / freq : 0;
size--;
while (size) {
- int i;
+ int i, j;
+
for (i = 0; size && i < half; i++) {
size -= 2;
- *data++ = amplitude;
+ for (j = 0; j < channels; j++)
+ *data++ = amplitude;
}
for (i = 0; size && i < period - half; i++) {
size -= 2;
- *data++ = -amplitude;
+ for (j = 0; j < channels; j++)
+ *data++ = -amplitude;
}
}
}