diff options
Diffstat (limited to 'Alc')
| -rw-r--r-- | Alc/ALu.c | 76 |
1 files changed, 36 insertions, 40 deletions
@@ -413,11 +413,8 @@ static __inline ALint aluCart2LUTpos(ALfloat re, ALfloat im) return pos%LUT_NUM; } -static ALvoid CalcSourceParams(const ALCcontext *ALContext, - const ALsource *ALSource, ALenum isMono, - ALfloat *drysend, ALfloat *wetsend, - ALfloat *pitch, FILTER *DryFilter, - FILTER *WetFilter[MAX_SENDS]) +static ALvoid CalcSourceParams(const ALCcontext *ALContext, ALsource *ALSource, + ALboolean isMono) { ALfloat InnerAngle,OuterAngle,Angle,Distance,DryMix; ALfloat Direction[3],Position[3],SourceToListener[3]; @@ -431,6 +428,7 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, ALfloat MetersPerUnit; ALfloat RoomRolloff[MAX_SENDS]; ALfloat DryGainHF = 1.0f; + ALfloat WetGain[MAX_SENDS]; ALfloat WetGainHF[MAX_SENDS]; ALfloat DirGain, AmbientGain; ALfloat length; @@ -468,7 +466,7 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, if(isMono == AL_FALSE) { //1. Multi-channel buffers always play "normal" - pitch[0] = ALSource->flPitch; + ALSource->Params.Pitch = ALSource->flPitch; DryMix = SourceVolume; DryMix = __min(DryMix,MaxVolume); @@ -482,17 +480,17 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, break; } - drysend[FRONT_LEFT] = DryMix * ListenerGain; - drysend[FRONT_RIGHT] = DryMix * ListenerGain; - drysend[SIDE_LEFT] = DryMix * ListenerGain; - drysend[SIDE_RIGHT] = DryMix * ListenerGain; - drysend[BACK_LEFT] = DryMix * ListenerGain; - drysend[BACK_RIGHT] = DryMix * ListenerGain; - drysend[FRONT_CENTER] = DryMix * ListenerGain; - drysend[BACK_CENTER] = DryMix * ListenerGain; - drysend[LFE] = DryMix * ListenerGain; + ALSource->Params.DryGains[FRONT_LEFT] = DryMix * ListenerGain; + ALSource->Params.DryGains[FRONT_RIGHT] = DryMix * ListenerGain; + ALSource->Params.DryGains[SIDE_LEFT] = DryMix * ListenerGain; + ALSource->Params.DryGains[SIDE_RIGHT] = DryMix * ListenerGain; + ALSource->Params.DryGains[BACK_LEFT] = DryMix * ListenerGain; + ALSource->Params.DryGains[BACK_RIGHT] = DryMix * ListenerGain; + ALSource->Params.DryGains[FRONT_CENTER] = DryMix * ListenerGain; + ALSource->Params.DryGains[BACK_CENTER] = DryMix * ListenerGain; + ALSource->Params.DryGains[LFE] = DryMix * ListenerGain; for(i = 0;i < MAX_SENDS;i++) - wetsend[i] = 0.0f; + ALSource->Params.WetGains[i] = 0.0f; /* Update filter coefficients. Calculations based on the I3DL2 * spec. */ @@ -507,9 +505,9 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, if(g < 0.9999f) /* 1-epsilon */ a = (1 - g*cw - aluSqrt(2*g*(1-cw) - g*g*(1 - cw*cw))) / (1 - g); - DryFilter->coeff = a; + ALSource->Params.iirFilter.coeff = a; for(i = 0;i < MAX_SENDS;i++) - WetFilter[i]->coeff = 0.0f; + ALSource->Params.Send[i].iirFilter.coeff = 0.0f; return; } @@ -632,7 +630,7 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, { ALfloat WetMix = SourceVolume * RoomAttenuation[i]; WetMix = __min(WetMix,MaxVolume); - wetsend[i] = __max(WetMix,MinVolume); + WetGain[i] = __max(WetMix,MinVolume); WetGainHF[i] = 1.0f; } @@ -700,56 +698,56 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, flVLS = -flMaxVelocity + 1.0f; } - pitch[0] = ALSource->flPitch * - ((flSpeedOfSound * DopplerVelocity) - (DopplerFactor * flVLS)) / - ((flSpeedOfSound * DopplerVelocity) - (DopplerFactor * flVSS)); + ALSource->Params.Pitch = ALSource->flPitch * + ((flSpeedOfSound * DopplerVelocity) - (DopplerFactor * flVLS)) / + ((flSpeedOfSound * DopplerVelocity) - (DopplerFactor * flVSS)); } else - pitch[0] = ALSource->flPitch; + ALSource->Params.Pitch = ALSource->flPitch; for(i = 0;i < NumSends;i++) { if(ALSource->Send[i].Slot && ALSource->Send[i].Slot->effect.type != AL_EFFECT_NULL) { - if(ALSource->WetGainAuto) - wetsend[i] *= ConeVolume; - if(ALSource->WetGainHFAuto) - WetGainHF[i] *= ConeHF; - if(ALSource->Send[i].Slot->AuxSendAuto) { + if(ALSource->WetGainAuto) + WetGain[i] *= ConeVolume; + if(ALSource->WetGainHFAuto) + WetGainHF[i] *= ConeHF; + // Apply minimal attenuation in place of missing // statistical reverb model. - wetsend[i] *= pow(DryMix, 1.0f / 2.0f); + WetGain[i] *= pow(DryMix, 1.0f / 2.0f); } 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 - wetsend[i] = DryMix; + WetGain[i] = DryMix; WetGainHF[i] = DryGainHF; } switch(ALSource->Send[i].WetFilter.type) { case AL_FILTER_LOWPASS: - wetsend[i] *= ALSource->Send[i].WetFilter.Gain; + WetGain[i] *= ALSource->Send[i].WetFilter.Gain; WetGainHF[i] *= ALSource->Send[i].WetFilter.GainHF; break; } - wetsend[i] *= ListenerGain; + ALSource->Params.WetGains[i] = WetGain[i] * ListenerGain; } else { - wetsend[i] = 0.0f; + ALSource->Params.WetGains[i] = 0.0f; WetGainHF[i] = 1.0f; } } for(i = NumSends;i < MAX_SENDS;i++) { - wetsend[i] = 0.0f; + ALSource->Params.WetGains[i] = 0.0f; WetGainHF[i] = 1.0f; } @@ -785,7 +783,7 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, for(s = 0; s < OUTPUTCHANNELS; s++) { ALfloat gain = SpeakerGain[s]*DirGain + AmbientGain; - drysend[s] = DryMix * gain; + ALSource->Params.DryGains[s] = DryMix * gain; } /* Update filter coefficients. */ @@ -798,7 +796,7 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, if(g < 0.9999f) /* 1-epsilon */ a = (1 - g*cw - aluSqrt(2*g*(1-cw) - g*g*(1 - cw*cw))) / (1 - g); - DryFilter->coeff = a; + ALSource->Params.iirFilter.coeff = a; for(i = 0;i < NumSends;i++) { @@ -809,7 +807,7 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, if(g < 0.9999f) /* 1-epsilon */ a = (1 - g*cw - aluSqrt(2*g*(1-cw) - g*g*(1 - cw*cw))) / (1 - g); - WetFilter[i]->coeff = a; + ALSource->Params.Send[i].iirFilter.coeff = a; } } @@ -888,9 +886,7 @@ another_source: DummyBuffer); } - CalcSourceParams(ALContext, ALSource, (Channels==1)?AL_TRUE:AL_FALSE, - ALSource->Params.DryGains, ALSource->Params.WetGains, - &ALSource->Params.Pitch, DryFilter, WetFilter); + CalcSourceParams(ALContext, ALSource, (Channels==1)?AL_TRUE:AL_FALSE); Pitch = (ALSource->Params.Pitch*ALBuffer->frequency) / frequency; if(DuplicateStereo && Channels == 2) |