zdoom/fluidsynth
0
0
Fork 0
mirror of https://github.com/ZDoom/fluidsynth.git synced 2025-01-19 07:50:49 +00:00
Code Issues Projects Releases Packages Wiki Activity

remove optimization for centered stereo samples

Browse source 
in favour of vectorized mixing loop. Was incredibly unlikely to happen anyway.
This commit is contained in:
derselbst 2018-04-26 16:47:06 +02:00
parent ba9da3b790
commit f332f32a7c
1 changed files with 0 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
src/rvoice/fluid_rvoice_mixer.c
View file

@ -269,30 +269,16 @@ fluid_rvoice_buffers_mix(fluid_rvoice_buffers_t* buffers,
for (i=0; i < bufcount; i++) {
fluid_real_t* buf = get_dest_buf(buffers, i, dest_bufs, dest_bufcount);
fluid_real_t* next_buf;
fluid_real_t amp = buffers->bufs[i].amp;
if (buf == NULL || amp == 0.0f)
continue;
/* Optimization for centered stereo samples - we can save one
multiplication per sample */
next_buf = (i+1 >= bufcount ? NULL : get_dest_buf(buffers, i+1, dest_bufs, dest_bufcount));
if (next_buf && buffers->bufs[i+1].amp == amp) {
for (dsp_i = start; dsp_i < samplecount; dsp_i++) {
fluid_real_t samp = amp * dsp_buf[dsp_i];
buf[dsp_i] += samp;
next_buf[dsp_i] += samp;
}
i++;
}
else {
#pragma omp simd aligned(dsp_buf:FLUID_DEFAULT_ALIGNMENT)
#pragma vector aligned(dsp_buf)
for (dsp_i = start; dsp_i < samplecount; dsp_i++)
{
buf[dsp_i] += amp * dsp_buf[dsp_i];
}
}
}
}