void mixer_set_mixing_level(int ch, int level)
{
struct mixer_channel_data *channel = &mixer_channel[ch];
mixer_update_channel(channel, sound_scalebufferpos(samples_this_frame));
channel->mixing_level = level;
}
void mixer_set_volume(int ch, int volume)
{
struct mixer_channel_data *channel = &mixer_channel[ch];
mixer_update_channel(channel, sound_scalebufferpos(samples_this_frame));
channel->volume = volume;
}
void TMS3617_doupdate(void)
{
int newpos;
newpos = sound_scalebufferpos(buffer_len); /* get current position based on the timer */
TMS3617_update(&output_buffer[sample_pos],newpos - sample_pos);
sample_pos = newpos;
}
/* min_interval is in usec */
void stream_update(int channel,int min_interval)
{
int newpos;
int buflen;
if (Machine->sample_rate == 0 || stream_buffer[channel] == 0)
return;
/* get current position based on the timer */
newpos = sound_scalebufferpos(SAMPLES_THIS_FRAME(channel));
buflen = newpos - stream_buffer_pos[channel];
if (buflen * stream_sample_length[channel] > min_interval)
{
if (stream_joined_channels[channel] > 1)
{
INT16 *buf[MIXER_MAX_CHANNELS];
int i;
for (i = 0;i < stream_joined_channels[channel];i++)
buf[i] = stream_buffer[channel+i] + stream_buffer_pos[channel+i];
profiler_mark(PROFILER_SOUND);
(*stream_callback_multi[channel])(stream_param[channel],buf,buflen);
profiler_mark(PROFILER_END);
for (i = 0;i < stream_joined_channels[channel];i++)
stream_buffer_pos[channel+i] += buflen;
}
else
{
INT16 *buf;
buf = stream_buffer[channel] + stream_buffer_pos[channel];
profiler_mark(PROFILER_SOUND);
(*stream_callback[channel])(stream_param[channel],buf,buflen);
profiler_mark(PROFILER_END);
stream_buffer_pos[channel] += buflen;
}
}
}
/* ADD AN ENTRY TO THE QUEUE */
INLINE void apu_enqueue(unsigned int chip,unsigned char reg,unsigned char val)
{
queue_t *entry;
SETAPU(chip);
/* Only enqueue if it isn't full */
if (apu_queuenotfull(chip))
{
cur->head++;
cur->head&=QUEUE_MAX;
entry=&cur->queue[cur->head];
entry->pos=sound_scalebufferpos(samps_per_sync);
entry->reg=reg;
entry->val=val;
}
}
void llander_sh_update_partial(void)
{
int newpos;
if (Machine->sample_rate == 0) return;
newpos = sound_scalebufferpos(buffer_len); /* get current position based on the timer */
if(newpos-sample_pos<MIN_SLICE) return;
/* Process count samples into the buffer */
llander_process (sample_buffer, sample_pos, newpos - sample_pos);
/* Update sample position */
sample_pos = newpos;
}
