diff options
| author | Chris Robinson <[email protected]> | 2017-05-21 03:38:19 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2017-05-21 03:38:19 -0700 |
| commit | 95ea3fdd05d55020c056e549c74def62c508e761 (patch) | |
| tree | 1a118ea92e89d07ea9bf1775fc5c54998c301ab9 /Alc/ALu.c | |
| parent | 5691dceb38d7dfa6159c9c9b5358d094acc7e8a4 (diff) | |
Avoid calculating the filter coefficients multiple times
Diffstat (limited to 'Alc/ALu.c')
| -rw-r--r-- | Alc/ALu.c | 60 |
1 files changed, 36 insertions, 24 deletions
@@ -953,19 +953,25 @@ static void CalcPanningAndFilters(ALvoice *voice, const ALfloat Distance, const ALfloat lfScale = props->Direct.LFReference / Frequency; ALfloat gainHF = maxf(DryGainHF, 0.001f); /* Limit -60dB */ ALfloat gainLF = maxf(DryGainLF, 0.001f); - for(c = 0;c < num_channels;c++) + + voice->Direct.Params[0].FilterType = AF_None; + if(gainHF != 1.0f) voice->Direct.Params[0].FilterType |= AF_LowPass; + if(gainLF != 1.0f) voice->Direct.Params[0].FilterType |= AF_HighPass; + ALfilterState_setParams( + &voice->Direct.Params[0].LowPass, ALfilterType_HighShelf, + gainHF, hfScale, calc_rcpQ_from_slope(gainHF, 1.0f) + ); + ALfilterState_setParams( + &voice->Direct.Params[0].HighPass, ALfilterType_LowShelf, + gainLF, lfScale, calc_rcpQ_from_slope(gainLF, 1.0f) + ); + for(c = 1;c < num_channels;c++) { - voice->Direct.Params[c].FilterType = AF_None; - if(gainHF != 1.0f) voice->Direct.Params[c].FilterType |= AF_LowPass; - if(gainLF != 1.0f) voice->Direct.Params[c].FilterType |= AF_HighPass; - ALfilterState_setParams( - &voice->Direct.Params[c].LowPass, ALfilterType_HighShelf, - gainHF, hfScale, calc_rcpQ_from_slope(gainHF, 1.0f) - ); - ALfilterState_setParams( - &voice->Direct.Params[c].HighPass, ALfilterType_LowShelf, - gainLF, lfScale, calc_rcpQ_from_slope(gainLF, 1.0f) - ); + voice->Direct.Params[c].FilterType = voice->Direct.Params[0].FilterType; + ALfilterState_copyParams(&voice->Direct.Params[c].LowPass, + &voice->Direct.Params[0].LowPass); + ALfilterState_copyParams(&voice->Direct.Params[c].HighPass, + &voice->Direct.Params[0].HighPass); } } for(i = 0;i < NumSends;i++) @@ -974,19 +980,25 @@ static void CalcPanningAndFilters(ALvoice *voice, const ALfloat Distance, const ALfloat lfScale = props->Send[i].LFReference / Frequency; ALfloat gainHF = maxf(WetGainHF[i], 0.001f); ALfloat gainLF = maxf(WetGainLF[i], 0.001f); - for(c = 0;c < num_channels;c++) + + voice->Send[i].Params[0].FilterType = AF_None; + if(gainHF != 1.0f) voice->Send[i].Params[0].FilterType |= AF_LowPass; + if(gainLF != 1.0f) voice->Send[i].Params[0].FilterType |= AF_HighPass; + ALfilterState_setParams( + &voice->Send[i].Params[0].LowPass, ALfilterType_HighShelf, + gainHF, hfScale, calc_rcpQ_from_slope(gainHF, 1.0f) + ); + ALfilterState_setParams( + &voice->Send[i].Params[0].HighPass, ALfilterType_LowShelf, + gainLF, lfScale, calc_rcpQ_from_slope(gainLF, 1.0f) + ); + for(c = 1;c < num_channels;c++) { - voice->Send[i].Params[c].FilterType = AF_None; - if(gainHF != 1.0f) voice->Send[i].Params[c].FilterType |= AF_LowPass; - if(gainLF != 1.0f) voice->Send[i].Params[c].FilterType |= AF_HighPass; - ALfilterState_setParams( - &voice->Send[i].Params[c].LowPass, ALfilterType_HighShelf, - gainHF, hfScale, calc_rcpQ_from_slope(gainHF, 1.0f) - ); - ALfilterState_setParams( - &voice->Send[i].Params[c].HighPass, ALfilterType_LowShelf, - gainLF, lfScale, calc_rcpQ_from_slope(gainLF, 1.0f) - ); + voice->Send[i].Params[c].FilterType = voice->Send[i].Params[0].FilterType; + ALfilterState_copyParams(&voice->Send[i].Params[c].LowPass, + &voice->Send[i].Params[0].LowPass); + ALfilterState_copyParams(&voice->Send[i].Params[c].HighPass, + &voice->Send[i].Params[0].HighPass); } } } |