void SNDDMA_Submit(void)
{
int nFillable, nFilled, nPos;
int nFrames, nFramesLeft;
unsigned endtime;
if (!sgisnd_aport) return;
nFillable = alGetFillable( sgisnd_aport );
nFilled = QSND_BUFFER_FRAMES - nFillable;
nFrames = dma.samples >> (dma.channels - 1);
if (paintedtime - soundtime < nFrames)
nFrames = paintedtime - soundtime;
if (nFrames <= QSND_SKID) return;
nPos = UST_TO_BUFFPOS( sgisnd_startframe );
// dump re-written contents of the buffer
if (sgisnd_lastframewritten > sgisnd_startframe)
{
alDiscardFrames( sgisnd_aport, sgisnd_lastframewritten - sgisnd_startframe );
}
else if ((int)(sgisnd_startframe - sgisnd_lastframewritten) >= QSND_BUFFER_FRAMES)
{
// blow away everything if we've underflowed
alDiscardFrames( sgisnd_aport, QSND_BUFFER_FRAMES );
}
// don't block
if (nFrames > nFillable) nFrames = nFillable;
// account for stereo
nFramesLeft = nFrames;
if (nPos + nFrames * dma.channels > QSND_BUFFER_SIZE)
{
int nFramesAtEnd = (QSND_BUFFER_SIZE - nPos) >> (dma.channels - 1);
alWriteFrames( sgisnd_aport, &dma_buffer[nPos], nFramesAtEnd );
nPos = 0;
nFramesLeft -= nFramesAtEnd;
}
void
sgi_close(void)
{
/* Ack all remaining packets */
#if (defined(IRIX_DEBUG))
fprintf(stderr, "sgi_close: begin\n");
#endif
while (!rdpsnd_queue_empty())
rdpsnd_queue_next(0);
alDiscardFrames(output_port, 0);
alClosePort(output_port);
output_port = (ALport) 0;
alFreeConfig(audioconfig);
#if (defined(IRIX_DEBUG))
fprintf(stderr, "sgi_close: returning\n");
#endif
}
void
wave_out_close(void)
{
/* Ack all remaining packets */
#if (defined(IRIX_DEBUG))
fprintf(stderr, "wave_out_close: begin\n");
#endif
while (queue_lo != queue_hi)
{
rdpsnd_send_completion(packet_queue[queue_lo].tick, packet_queue[queue_lo].index);
free(packet_queue[queue_lo].s.data);
queue_lo = (queue_lo + 1) % MAX_QUEUE;
}
alDiscardFrames(output_port, 0);
alClosePort(output_port);
alFreeConfig(audioconfig);
#if (defined(IRIX_DEBUG))
fprintf(stderr, "wave_out_close: returning\n");
#endif
}
// stop playing and empty buffers (for seeking/pause)
static void reset(void) {
mp_msg(MSGT_AO, MSGL_INFO, MSGTR_AO_SGI_Reset);
alDiscardFrames(ao_port, queue_size);
}
// stop playing and empty buffers (for seeking/pause)
static void reset(void) {
mp_tmsg(MSGT_AO, MSGL_INFO, "[AO SGI] reset: ...\n");
alDiscardFrames(ao_port, queue_size);
}
