static size_t write_buffer(jack_t *jd, const float *buf, size_t size)
{
jack_default_audio_sample_t out_deinterleaved_buffer[2][AUDIO_CHUNK_SIZE_NONBLOCKING];
for (int i = 0; i < 2; i++)
for (size_t j = 0; j < FRAMES(size); j++)
out_deinterleaved_buffer[i][j] = buf[j * 2 + i];
size_t frames = FRAMES(size);
size_t written = 0;
while (written < frames)
{
if (jd->shutdown)
return 0;
size_t avail[2] = {
jack_ringbuffer_write_space(jd->buffer[0]),
jack_ringbuffer_write_space(jd->buffer[1]),
};
size_t min_avail = avail[0] < avail[1] ? avail[0] : avail[1];
min_avail /= sizeof(float);
size_t write_frames = frames - written > min_avail ? min_avail : frames - written;
if (write_frames > 0)
{
for (int i = 0; i < 2; i++)
{
jack_ringbuffer_write(jd->buffer[i], (const char*)&out_deinterleaved_buffer[i][written],
write_frames * sizeof(jack_default_audio_sample_t));
}
written += write_frames;
}
else
{
pthread_mutex_lock(&jd->cond_lock);
pthread_cond_wait(&jd->cond, &jd->cond_lock);
pthread_mutex_unlock(&jd->cond_lock);
}
if (jd->nonblock)
break;
}
return written * sizeof(float) * 2;
}
static size_t write_buffer(jack_t *jd, const float *buf, size_t size)
{
int i;
size_t j, frames, written = 0;
jack_default_audio_sample_t out_deinterleaved_buffer[2][AUDIO_CHUNK_SIZE_NONBLOCKING * AUDIO_MAX_RATIO];
frames = FRAMES(size);
/* Avoid buffer overflow if a DSP plugin generated a huge number of frames. */
if (frames > AUDIO_CHUNK_SIZE_NONBLOCKING * AUDIO_MAX_RATIO)
frames = AUDIO_CHUNK_SIZE_NONBLOCKING * AUDIO_MAX_RATIO;
for (i = 0; i < 2; i++)
for (j = 0; j < frames; j++)
out_deinterleaved_buffer[i][j] = buf[j * 2 + i];
while (written < frames)
{
size_t avail[2], min_avail, write_frames;
if (jd->shutdown)
return 0;
avail[0] = jack_ringbuffer_write_space(jd->buffer[0]);
avail[1] = jack_ringbuffer_write_space(jd->buffer[1]);
min_avail = avail[0] < avail[1] ? avail[0] : avail[1];
min_avail /= sizeof(float);
write_frames = frames - written > min_avail ? min_avail : frames - written;
if (write_frames > 0)
{
for (i = 0; i < 2; i++)
{
jack_ringbuffer_write(jd->buffer[i], (const char*)&out_deinterleaved_buffer[i][written],
write_frames * sizeof(jack_default_audio_sample_t));
}
written += write_frames;
}
#ifdef HAVE_THREADS
else
{
slock_lock(jd->cond_lock);
scond_wait(jd->cond, jd->cond_lock);
slock_unlock(jd->cond_lock);
}
#endif
if (jd->nonblock)
break;
}
return written * sizeof(float) * 2;
}
