diff options
Diffstat (limited to 'Alc')
| -rw-r--r-- | Alc/ALu.c | 47 |
1 files changed, 22 insertions, 25 deletions
@@ -493,6 +493,7 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, if(ALSource->Send[0].Slot->effect.type == AL_EFFECT_REVERB) { + WetMix *= ALSource->Send[0].Slot->effect.Reverb.Gain; WetGainHF *= ALSource->Send[0].Slot->effect.Reverb.GainHF; WetGainHF *= pow(ALSource->Send[0].Slot->effect.Reverb.AirAbsorptionGainHF, Distance * MetersPerUnit); @@ -512,17 +513,20 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, switch(aluChannelsFromFormat(OutputFormat)) { case 1: - drysend[FRONT_LEFT] = DryMix * aluSqrt(1.0f); //Direct - drysend[FRONT_RIGHT] = DryMix * aluSqrt(1.0f); //Direct - wetsend[FRONT_LEFT] = WetMix * aluSqrt(1.0f); //Room - wetsend[FRONT_RIGHT] = WetMix * aluSqrt(1.0f); //Room - break; case 2: PanningLR = 0.5f + 0.5f*Position[0]; drysend[FRONT_LEFT] = DryMix * aluSqrt(1.0f-PanningLR); //L Direct drysend[FRONT_RIGHT] = DryMix * aluSqrt( PanningLR); //R Direct + drysend[BACK_LEFT] = drysend[FRONT_LEFT]; + drysend[BACK_RIGHT] = drysend[FRONT_RIGHT]; + drysend[SIDE_LEFT] = drysend[FRONT_LEFT]; + drysend[SIDE_RIGHT] = drysend[FRONT_RIGHT]; wetsend[FRONT_LEFT] = WetMix * aluSqrt(1.0f-PanningLR); //L Room wetsend[FRONT_RIGHT] = WetMix * aluSqrt( PanningLR); //R Room + wetsend[BACK_LEFT] = wetsend[FRONT_LEFT]; + wetsend[BACK_RIGHT] = wetsend[FRONT_RIGHT]; + wetsend[SIDE_LEFT] = wetsend[FRONT_LEFT]; + wetsend[SIDE_RIGHT] = wetsend[FRONT_RIGHT]; break; case 4: /* TODO: Add center/lfe channel in spatial calculations? */ @@ -538,10 +542,14 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, drysend[FRONT_RIGHT] = DryMix * aluSqrt(( PanningLR)*(1.0f-PanningFB)); drysend[BACK_LEFT] = DryMix * aluSqrt((1.0f-PanningLR)*( PanningFB)); drysend[BACK_RIGHT] = DryMix * aluSqrt(( PanningLR)*( PanningFB)); + drysend[SIDE_LEFT] = (drysend[FRONT_LEFT] +drysend[BACK_LEFT]) * 0.5f; + drysend[SIDE_RIGHT] = (drysend[FRONT_RIGHT]+drysend[BACK_RIGHT]) * 0.5f; wetsend[FRONT_LEFT] = WetMix * aluSqrt((1.0f-PanningLR)*(1.0f-PanningFB)); wetsend[FRONT_RIGHT] = WetMix * aluSqrt(( PanningLR)*(1.0f-PanningFB)); wetsend[BACK_LEFT] = WetMix * aluSqrt((1.0f-PanningLR)*( PanningFB)); wetsend[BACK_RIGHT] = WetMix * aluSqrt(( PanningLR)*( PanningFB)); + wetsend[SIDE_LEFT] = (wetsend[FRONT_LEFT] +wetsend[BACK_LEFT]) * 0.5f; + wetsend[SIDE_RIGHT] = (wetsend[FRONT_RIGHT]+wetsend[BACK_RIGHT]) * 0.5f; break; case 7: case 8: @@ -620,7 +628,6 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma { static float DryBuffer[BUFFERSIZE][OUTPUTCHANNELS]; static float WetBuffer[BUFFERSIZE][OUTPUTCHANNELS]; - static float ReverbBuffer[BUFFERSIZE]; ALfloat DrySend[OUTPUTCHANNELS] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }; ALfloat WetSend[OUTPUTCHANNELS] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }; ALfloat DryGainHF = 0.0f; @@ -628,7 +635,6 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma ALuint BlockAlign,BufferSize; ALuint DataSize=0,DataPosInt=0,DataPosFrac=0; ALuint Channels,Frequency,ulExtraSamples; - ALboolean doReverb; ALfloat Pitch; ALint Looping,State; ALint fraction,increment; @@ -662,7 +668,6 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma //Clear mixing buffer memset(DryBuffer, 0, SamplesToDo*OUTPUTCHANNELS*sizeof(ALfloat)); memset(WetBuffer, 0, SamplesToDo*OUTPUTCHANNELS*sizeof(ALfloat)); - memset(ReverbBuffer, 0, SamplesToDo*sizeof(ALfloat)); //Actual mixing loop while(ALSource) @@ -670,10 +675,6 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma j = 0; State = ALSource->state; - doReverb = ((ALSource->Send[0].Slot && - ALSource->Send[0].Slot->effect.type == AL_EFFECT_REVERB) ? - AL_TRUE : AL_FALSE); - while(State == AL_PLAYING && j < SamplesToDo) { DataSize = 0; @@ -771,17 +772,12 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma DryBuffer[j][BACK_RIGHT] += outsamp*DrySend[BACK_RIGHT]; //Room path final mix buffer and panning outsamp = aluComputeSample(WetGainHF, sample, lowsamp); - if(doReverb) - ReverbBuffer[j] += outsamp; - else - { - WetBuffer[j][FRONT_LEFT] += outsamp*WetSend[FRONT_LEFT]; - WetBuffer[j][FRONT_RIGHT] += outsamp*WetSend[FRONT_RIGHT]; - WetBuffer[j][SIDE_LEFT] += outsamp*WetSend[SIDE_LEFT]; - WetBuffer[j][SIDE_RIGHT] += outsamp*WetSend[SIDE_RIGHT]; - WetBuffer[j][BACK_LEFT] += outsamp*WetSend[BACK_LEFT]; - WetBuffer[j][BACK_RIGHT] += outsamp*WetSend[BACK_RIGHT]; - } + WetBuffer[j][FRONT_LEFT] += outsamp*WetSend[FRONT_LEFT]; + WetBuffer[j][FRONT_RIGHT] += outsamp*WetSend[FRONT_RIGHT]; + WetBuffer[j][SIDE_LEFT] += outsamp*WetSend[SIDE_LEFT]; + WetBuffer[j][SIDE_RIGHT] += outsamp*WetSend[SIDE_RIGHT]; + WetBuffer[j][BACK_LEFT] += outsamp*WetSend[BACK_LEFT]; + WetBuffer[j][BACK_RIGHT] += outsamp*WetSend[BACK_RIGHT]; } else { @@ -944,7 +940,6 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma ALuint Length = ALEffectSlot->ReverbLength; ALfloat DecayGain = ALEffectSlot->ReverbDecayGain; ALfloat DecayHFRatio = ALEffectSlot->effect.Reverb.DecayHFRatio; - ALfloat Gain = ALEffectSlot->effect.Reverb.Gain; ALfloat ReflectGain = ALEffectSlot->effect.Reverb.ReflectionsGain; ALfloat LateReverbGain = ALEffectSlot->effect.Reverb.LateReverbGain; ALfloat sample, lowsample; @@ -952,7 +947,9 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma Filter = &ALEffectSlot->iirFilter; for(i = 0;i < SamplesToDo;i++) { - DelayBuffer[Pos] = ReverbBuffer[i] * Gain; + sample = WetBuffer[i][FRONT_LEFT] +WetBuffer[i][SIDE_LEFT] +WetBuffer[i][BACK_LEFT]; + sample += WetBuffer[i][FRONT_RIGHT]+WetBuffer[i][SIDE_RIGHT]+WetBuffer[i][BACK_RIGHT]; + DelayBuffer[Pos] = sample / 6.0f; sample = DelayBuffer[ReflectPos] * ReflectGain; |