static void
SUNAUDIO_PlayDevice(_THIS)
{
/* Write the audio data */
if (this->hidden->ulaw_only) {
/* Assuming that this->spec.freq >= 8000 Hz */
int accum, incr, pos;
Uint8 *aubuf;
accum = 0;
incr = this->spec.freq / 8;
aubuf = this->hidden->ulaw_buf;
switch (this->hidden->audio_fmt & 0xFF) {
case 8:
{
Uint8 *sndbuf;
sndbuf = this->hidden->mixbuf;
for (pos = 0; pos < this->hidden->fragsize; ++pos) {
*aubuf = snd2au((0x80 - *sndbuf) * 64);
accum += incr;
while (accum > 0) {
accum -= 1000;
sndbuf += 1;
}
aubuf += 1;
}
}
break;
case 16:
{
Sint16 *sndbuf;
sndbuf = (Sint16 *) this->hidden->mixbuf;
for (pos = 0; pos < this->hidden->fragsize; ++pos) {
*aubuf = snd2au(*sndbuf / 4);
accum += incr;
while (accum > 0) {
accum -= 1000;
sndbuf += 1;
}
aubuf += 1;
}
}
break;
}
#ifdef DEBUG_AUDIO
CheckUnderflow(this);
#endif
if (write(this->hidden->audio_fd, this->hidden->ulaw_buf,
this->hidden->fragsize) < 0) {
/* Assume fatal error, for now */
SDL_OpenedAudioDeviceDisconnected(this);
}
this->hidden->written += this->hidden->fragsize;
} else {
#ifdef DEBUG_AUDIO
CheckUnderflow(this);
#endif
if (write(this->hidden->audio_fd, this->hidden->mixbuf,
this->spec.size) < 0) {
/* Assume fatal error, for now */
SDL_OpenedAudioDeviceDisconnected(this);
}
this->hidden->written += this->hidden->fragsize;
}
}
void
DSP_PlayAudio(_THIS)
{
/* Write the audio data */
if (ulaw_only) {
/* Assuming that this->spec.freq >= 8000 Hz */
int accum, incr, pos;
Uint8 *aubuf;
accum = 0;
incr = this->spec.freq / 8;
aubuf = ulaw_buf;
switch (audio_fmt & 0xFF) {
case 8:
{
Uint8 *sndbuf;
sndbuf = mixbuf;
for (pos = 0; pos < fragsize; ++pos) {
*aubuf = snd2au((0x80 - *sndbuf) * 64);
accum += incr;
while (accum > 0) {
accum -= 1000;
sndbuf += 1;
}
aubuf += 1;
}
}
break;
case 16:
{
Sint16 *sndbuf;
sndbuf = (Sint16 *) mixbuf;
for (pos = 0; pos < fragsize; ++pos) {
*aubuf = snd2au(*sndbuf / 4);
accum += incr;
while (accum > 0) {
accum -= 1000;
sndbuf += 1;
}
aubuf += 1;
}
}
break;
}
#ifdef DEBUG_AUDIO
CheckUnderflow(this);
#endif
if (write(audio_fd, ulaw_buf, fragsize) < 0) {
/* Assume fatal error, for now */
this->enabled = 0;
}
written += fragsize;
} else {
#ifdef DEBUG_AUDIO
CheckUnderflow(this);
#endif
if (write(audio_fd, mixbuf, this->spec.size) < 0) {
/* Assume fatal error, for now */
this->enabled = 0;
}
written += fragsize;
}
}