diff options
| author | Chris Robinson <[email protected]> | 2019-09-28 01:58:29 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2019-09-28 01:58:29 -0700 |
| commit | 882b4acae80f41547a9e16b7def02a972842c857 (patch) | |
| tree | 3c4474c01bcfc33ef2973f06adb4edca6ea8b5a0 /alc/alu.cpp | |
| parent | 00d5356b96d29775653bc6816fafff9cc94ef3ec (diff) | |
Add "fast" variants for the bsinc resamplers
This simply omits the scale factor from the filter, similar to how up-sampling
does. The consequence of this is less smooth transitions when ramping the
pitch while down-sampling, but otherwise behaves fine.
Diffstat (limited to 'alc/alu.cpp')
| -rw-r--r-- | alc/alu.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/alc/alu.cpp b/alc/alu.cpp index 86d2789e..5df1c3a2 100644 --- a/alc/alu.cpp +++ b/alc/alu.cpp @@ -947,9 +947,9 @@ void CalcNonAttnSourceParams(ALvoice *voice, const ALvoicePropsBase *props, cons voice->mStep = MAX_PITCH<<FRACTIONBITS; else voice->mStep = maxu(fastf2u(Pitch * FRACTIONONE), 1); - if(props->mResampler == Resampler::BSinc24) + if(props->mResampler == Resampler::BSinc24 || props->mResampler == Resampler::FastBSinc24) BsincPrepare(voice->mStep, &voice->mResampleState.bsinc, &bsinc24); - else if(props->mResampler == Resampler::BSinc12) + else if(props->mResampler == Resampler::BSinc12 || props->mResampler == Resampler::FastBSinc12) BsincPrepare(voice->mStep, &voice->mResampleState.bsinc, &bsinc12); voice->mResampler = SelectResampler(props->mResampler, voice->mStep); @@ -1277,9 +1277,9 @@ void CalcAttnSourceParams(ALvoice *voice, const ALvoicePropsBase *props, const A voice->mStep = MAX_PITCH<<FRACTIONBITS; else voice->mStep = maxu(fastf2u(Pitch * FRACTIONONE), 1); - if(props->mResampler == Resampler::BSinc24) + if(props->mResampler == Resampler::BSinc24 || props->mResampler == Resampler::FastBSinc24) BsincPrepare(voice->mStep, &voice->mResampleState.bsinc, &bsinc24); - else if(props->mResampler == Resampler::BSinc12) + else if(props->mResampler == Resampler::BSinc12 || props->mResampler == Resampler::FastBSinc12) BsincPrepare(voice->mStep, &voice->mResampleState.bsinc, &bsinc12); voice->mResampler = SelectResampler(props->mResampler, voice->mStep); |