diff options
| author | Chris Robinson <[email protected]> | 2013-05-20 04:16:48 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2013-05-20 04:16:48 -0700 |
| commit | 5b706f3bdc1a8c8f064a253b53b4e86f9d88da8d (patch) | |
| tree | 611e350eb0fe6986423e7a0522b6a42af436187c /Alc/alcModulator.c | |
| parent | 80459b13e45306958f9fa2087ef750f1e736818b (diff) | |
Process 64 samples at a time for some effects
This should help with the non-interleaved samples of the output, and
allow skipping channels that don't contribute to the output.
Diffstat (limited to 'Alc/alcModulator.c')
| -rw-r--r-- | Alc/alcModulator.c | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/Alc/alcModulator.c b/Alc/alcModulator.c index d33811ba..c9f1edf4 100644 --- a/Alc/alcModulator.c +++ b/Alc/alcModulator.c @@ -88,20 +88,36 @@ static void Process##func(ALmodulatorState *state, ALuint SamplesToDo, \ { \ const ALuint step = state->step; \ ALuint index = state->index; \ - ALfloat samp; \ - ALuint i, k; \ + ALuint base; \ \ - for(i = 0;i < SamplesToDo;i++) \ + for(base = 0;base < SamplesToDo;) \ { \ - samp = SamplesIn[i]; \ - samp = hpFilter1P(&state->iirFilter, 0, samp); \ + ALfloat temps[64]; \ + ALuint td = minu(SamplesToDo-base, 64); \ + ALuint i, k; \ \ - index += step; \ - index &= WAVEFORM_FRACMASK; \ - samp *= func(index); \ + for(i = 0;i < td;i++) \ + { \ + ALfloat samp; \ + samp = SamplesIn[base+i]; \ + samp = hpFilter1P(&state->iirFilter, 0, samp); \ + \ + index += step; \ + index &= WAVEFORM_FRACMASK; \ + temps[i] = samp * func(index); \ + } \ \ for(k = 0;k < MaxChannels;k++) \ - SamplesOut[k][i] += state->Gain[k] * samp; \ + { \ + ALfloat gain = state->Gain[k]; \ + if(!(gain > 0.00001f)) \ + continue; \ + \ + for(i = 0;i < td;i++) \ + SamplesOut[k][base+i] += gain * temps[i]; \ + } \ + \ + base += td; \ } \ state->index = index; \ } |