diff options
Diffstat (limited to 'Alc/ALu.c')
| -rw-r--r-- | Alc/ALu.c | 48 |
1 files changed, 33 insertions, 15 deletions
@@ -670,24 +670,42 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext) Position[2] *= invlen; } - pos = aluCart2LUTpos(-Position[2], Position[0]); - SpeakerGain = &Device->PanningLUT[MAXCHANNELS * pos]; - - DirGain = aluSqrt(Position[0]*Position[0] + Position[2]*Position[2]); - // elevation adjustment for directional gain. this sucks, but - // has low complexity - AmbientGain = aluSqrt(1.0/Device->NumChan); - for(s = 0;s < MAXCHANNELS;s++) + if(Device->UseHRTF) { - ALuint s2; - for(s2 = 0;s2 < MAXCHANNELS;s2++) - ALSource->Params.DryGains[s][s2] = 0.0f; + const ALshort *hrtf_left, *hrtf_right; + + GetHrtfCoeffs(atan2(Position[1], -Position[2]) * (180.0/M_PI), + atan2(Position[0], -Position[2]) * (180.0/M_PI), + &hrtf_left, &hrtf_right); + for(i = 0;i < HRTF_LENGTH;i++) + { + ALSource->Params.HrtfCoeffs[i][0] = hrtf_left[i]*(1.0/32767.0) * + DryGain; + ALSource->Params.HrtfCoeffs[i][1] = hrtf_right[i]*(1.0/32767.0) * + DryGain; + } } - for(s = 0;s < (ALsizei)Device->NumChan;s++) + else { - Channel chan = Device->Speaker2Chan[s]; - ALfloat gain = AmbientGain + (SpeakerGain[chan]-AmbientGain)*DirGain; - ALSource->Params.DryGains[0][chan] = DryGain * gain; + pos = aluCart2LUTpos(-Position[2], Position[0]); + SpeakerGain = &Device->PanningLUT[MAXCHANNELS * pos]; + + DirGain = aluSqrt(Position[0]*Position[0] + Position[2]*Position[2]); + // elevation adjustment for directional gain. this sucks, but + // has low complexity + AmbientGain = aluSqrt(1.0/Device->NumChan); + for(s = 0;s < MAXCHANNELS;s++) + { + ALuint s2; + for(s2 = 0;s2 < MAXCHANNELS;s2++) + ALSource->Params.DryGains[s][s2] = 0.0f; + } + for(s = 0;s < (ALsizei)Device->NumChan;s++) + { + Channel chan = Device->Speaker2Chan[s]; + ALfloat gain = AmbientGain + (SpeakerGain[chan]-AmbientGain)*DirGain; + ALSource->Params.DryGains[0][chan] = DryGain * gain; + } } /* Update filter coefficients. */ |