diff options
Diffstat (limited to 'Alc/ALu.c')
-rw-r--r-- | Alc/ALu.c | 92 |
1 files changed, 45 insertions, 47 deletions
@@ -644,9 +644,9 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, ALsource *ALSource) case AL_EXPONENT_DISTANCE: if(Distance > 0.0f && MinDist > 0.0f) { - flAttenuation = (ALfloat)pow(Distance/MinDist, -Rolloff); + flAttenuation = aluPow(Distance/MinDist, -Rolloff); for(i = 0;i < NumSends;i++) - RoomAttenuation[i] = (ALfloat)pow(Distance/MinDist, -RoomRolloff[i]); + RoomAttenuation[i] = aluPow(Distance/MinDist, -RoomRolloff[i]); } break; @@ -672,7 +672,7 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, ALsource *ALSource) absorb = (ALSource->AirAbsorptionFactor*AIRABSORBGAINDBHF) * effectiveDist; // Convert dB to linear gain before applying - absorb = pow(10.0, absorb/20.0); + absorb = aluPow(10.0f, absorb/20.0f); DryGainHF *= absorb; } @@ -722,62 +722,60 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, ALsource *ALSource) { ALeffectslot *Slot = ALSource->Send[i].Slot; - if(Slot && Slot->effect.type != AL_EFFECT_NULL) + if(!Slot || Slot->effect.type == AL_EFFECT_NULL) { - if(Slot->AuxSendAuto) - { - if(ALSource->WetGainAuto) - WetGain[i] *= ConeVolume; - if(ALSource->WetGainHFAuto) - WetGainHF[i] *= ConeHF; + ALSource->Params.WetGains[i] = 0.0f; + WetGainHF[i] = 1.0f; + continue; + } - // Clamp to Min/Max Gain - WetGain[i] = __min(WetGain[i],MaxVolume); - WetGain[i] = __max(WetGain[i],MinVolume); + if(Slot->AuxSendAuto) + { + if(ALSource->WetGainAuto) + WetGain[i] *= ConeVolume; + if(ALSource->WetGainHFAuto) + WetGainHF[i] *= ConeHF; - if(Slot->effect.type == AL_EFFECT_REVERB || - Slot->effect.type == AL_EFFECT_EAXREVERB) - { - /* Apply a decay-time transformation to the wet path, - * based on the attenuation of the dry path. - * - * Using the approximate (effective) source to listener - * distance, the initial decay of the reverb effect is - * calculated and applied to the wet path. - */ - WetGain[i] *= pow(10.0, effectiveDist / + // Clamp to Min/Max Gain + WetGain[i] = __min(WetGain[i],MaxVolume); + WetGain[i] = __max(WetGain[i],MinVolume); + + if(Slot->effect.type == AL_EFFECT_REVERB || + Slot->effect.type == AL_EFFECT_EAXREVERB) + { + /* Apply a decay-time transformation to the wet path, based on + * the attenuation of the dry path. + * + * Using the approximate (effective) source to listener + * distance, the initial decay of the reverb effect is + * calculated and applied to the wet path. + */ + WetGain[i] *= aluPow(10.0f, effectiveDist / (SPEEDOFSOUNDMETRESPERSEC * Slot->effect.Reverb.DecayTime) * -60.0 / 20.0); - WetGainHF[i] *= pow(10.0, - log10(Slot->effect.Reverb.AirAbsorptionGainHF) * - ALSource->AirAbsorptionFactor * effectiveDist); - } + WetGainHF[i] *= aluPow(10.0f, + log10(Slot->effect.Reverb.AirAbsorptionGainHF) * + ALSource->AirAbsorptionFactor * effectiveDist); } - else - { - // If the slot's auxiliary send auto is off, the data sent to - // the effect slot is the same as the dry path, sans filter - // effects - WetGain[i] = DryMix; - WetGainHF[i] = DryGainHF; - } - - switch(ALSource->Send[i].WetFilter.type) - { - case AL_FILTER_LOWPASS: - WetGain[i] *= ALSource->Send[i].WetFilter.Gain; - WetGainHF[i] *= ALSource->Send[i].WetFilter.GainHF; - break; - } - ALSource->Params.WetGains[i] = WetGain[i] * ListenerGain; } else { - ALSource->Params.WetGains[i] = 0.0f; - WetGainHF[i] = 1.0f; + /* If the slot's auxiliary send auto is off, the data sent to the + * effect slot is the same as the dry path, sans filter effects */ + WetGain[i] = DryMix; + WetGainHF[i] = DryGainHF; } + + switch(ALSource->Send[i].WetFilter.type) + { + case AL_FILTER_LOWPASS: + WetGain[i] *= ALSource->Send[i].WetFilter.Gain; + WetGainHF[i] *= ALSource->Send[i].WetFilter.GainHF; + break; + } + ALSource->Params.WetGains[i] = WetGain[i] * ListenerGain; } for(i = NumSends;i < MAX_SENDS;i++) { |