diff options
author | Chris Robinson <[email protected]> | 2009-04-11 20:04:46 -0700 |
---|---|---|
committer | Chris Robinson <[email protected]> | 2009-04-11 20:04:46 -0700 |
commit | c67fbd72dd9cb2dcc21b690c94ff8dc39bc0d34a (patch) | |
tree | 919a073b5f662ed32cc518208aeb73d389c78880 /Alc | |
parent | 30f57d0824826c38d8991f041ea8870e19b44033 (diff) |
Pay attention to the MAX_SENDS value
Diffstat (limited to 'Alc')
-rw-r--r-- | Alc/ALu.c | 215 |
1 files changed, 128 insertions, 87 deletions
@@ -559,7 +559,7 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, ALfloat *pitch, ALfloat *drygainhf, ALfloat *wetgainhf) { - ALfloat InnerAngle,OuterAngle,Angle,Distance,DryMix,WetMix=0.0f; + ALfloat InnerAngle,OuterAngle,Angle,Distance,DryMix; ALfloat Direction[3],Position[3],SourceToListener[3]; ALfloat MinVolume,MaxVolume,MinDist,MaxDist,Rolloff,OuterGainHF; ALfloat ConeVolume,SourceVolume,ListenerGain; @@ -567,14 +567,13 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, ALfloat DopplerFactor, DopplerVelocity, flSpeedOfSound, flMaxVelocity; ALfloat Matrix[3][3]; ALfloat flAttenuation; - ALfloat RoomAttenuation; + ALfloat RoomAttenuation[MAX_SENDS]; ALfloat MetersPerUnit; - ALfloat RoomRolloff; + ALfloat RoomRolloff[MAX_SENDS]; ALfloat DryGainHF = 1.0f; - ALfloat WetGainHF = 1.0f; ALfloat DirGain, AmbientGain; const ALfloat *SpeakerGain; - ALint pos, s; + ALint pos, s, i; //Get context properties DopplerFactor = ALContext->DopplerFactor * ALSource->DopplerFactor; @@ -597,7 +596,8 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, InnerAngle = ALSource->flInnerAngle; OuterAngle = ALSource->flOuterAngle; OuterGainHF = ALSource->OuterGainHF; - RoomRolloff = ALSource->RoomRolloffFactor; + for(i = 0;i < MAX_SENDS;i++) + RoomRolloff[i] = ALSource->RoomRolloffFactor; //Only apply 3D calculations for mono buffers if(isMono != AL_FALSE) @@ -644,14 +644,16 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, //2. Calculate distance attenuation Distance = aluSqrt(aluDotproduct(Position, Position)); - if(ALSource->Send[0].Slot) + for(i = 0;i < MAX_SENDS;i++) { - if(ALSource->Send[0].Slot->effect.type == AL_EFFECT_REVERB) - RoomRolloff += ALSource->Send[0].Slot->effect.Reverb.RoomRolloffFactor; + if(ALSource->Send[i].Slot && + ALSource->Send[i].Slot->effect.type == AL_EFFECT_REVERB) + RoomRolloff[i] += ALSource->Send[i].Slot->effect.Reverb.RoomRolloffFactor; } flAttenuation = 1.0f; - RoomAttenuation = 1.0f; + for(i = 0;i < MAX_SENDS;i++) + RoomAttenuation[i] = 1.0f; switch (ALSource->DistanceModel) { case AL_INVERSE_DISTANCE_CLAMPED: @@ -665,8 +667,11 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, { if ((MinDist + (Rolloff * (Distance - MinDist))) > 0.0f) flAttenuation = MinDist / (MinDist + (Rolloff * (Distance - MinDist))); - if ((MinDist + (RoomRolloff * (Distance - MinDist))) > 0.0f) - RoomAttenuation = MinDist / (MinDist + (RoomRolloff * (Distance - MinDist))); + for(i = 0;i < MAX_SENDS;i++) + { + if ((MinDist + (RoomRolloff[i] * (Distance - MinDist))) > 0.0f) + RoomAttenuation[i] = MinDist / (MinDist + (RoomRolloff[i] * (Distance - MinDist))); + } } break; @@ -681,7 +686,8 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, if (MaxDist != MinDist) { flAttenuation = 1.0f - (Rolloff*(Distance-MinDist)/(MaxDist - MinDist)); - RoomAttenuation = 1.0f - (RoomRolloff*(Distance-MinDist)/(MaxDist - MinDist)); + for(i = 0;i < MAX_SENDS;i++) + RoomAttenuation[i] = 1.0f - (RoomRolloff[i]*(Distance-MinDist)/(MaxDist - MinDist)); } break; @@ -695,13 +701,12 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, if ((Distance > 0.0f) && (MinDist > 0.0f)) { flAttenuation = (ALfloat)pow(Distance/MinDist, -Rolloff); - RoomAttenuation = (ALfloat)pow(Distance/MinDist, -RoomRolloff); + for(i = 0;i < MAX_SENDS;i++) + RoomAttenuation[i] = (ALfloat)pow(Distance/MinDist, -RoomRolloff[i]); } break; case AL_NONE: - flAttenuation = 1.0f; - RoomAttenuation = 1.0f; break; } @@ -718,7 +723,8 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, // Convert dB to linear gain before applying absorb = pow(10.0, absorb/20.0); DryGainHF *= absorb; - WetGainHF *= absorb; + for(i = 0;i < MAX_SENDS;i++) + wetgainhf[i] *= absorb; } // Source Gain + Attenuation and clamp to Min/Max Gain @@ -726,9 +732,13 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, DryMix = __min(DryMix,MaxVolume); DryMix = __max(DryMix,MinVolume); - WetMix = SourceVolume * RoomAttenuation; - WetMix = __min(WetMix,MaxVolume); - WetMix = __max(WetMix,MinVolume); + for(i = 0;i < MAX_SENDS;i++) + { + ALfloat WetMix = SourceVolume * RoomAttenuation[i]; + WetMix = __min(WetMix,MaxVolume); + wetsend[i] = __max(WetMix,MinVolume); + wetgainhf[i] = 1.0f; + } //3. Apply directional soundcones Angle = aluAcos(aluDotproduct(Direction,SourceToListener)) * 180.0f/M_PI; @@ -737,23 +747,35 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, ALfloat scale = (Angle-InnerAngle) / (OuterAngle-InnerAngle); ConeVolume = (1.0f+(ALSource->flOuterGain-1.0f)*scale); DryMix *= ConeVolume; - if(ALSource->WetGainAuto) - WetMix *= ConeVolume; if(ALSource->DryGainHFAuto) DryGainHF *= (1.0f+(OuterGainHF-1.0f)*scale); + if(ALSource->WetGainAuto) + { + for(i = 0;i < MAX_SENDS;i++) + wetsend[i] *= ConeVolume; + } if(ALSource->WetGainHFAuto) - WetGainHF *= (1.0f+(OuterGainHF-1.0f)*scale); + { + for(i = 0;i < MAX_SENDS;i++) + wetgainhf[i] *= (1.0f+(OuterGainHF-1.0f)*scale); + } } else if(Angle > OuterAngle) { ConeVolume = (1.0f+(ALSource->flOuterGain-1.0f)); DryMix *= ConeVolume; - if(ALSource->WetGainAuto) - WetMix *= ConeVolume; if(ALSource->DryGainHFAuto) DryGainHF *= (1.0f+(OuterGainHF-1.0f)); + if(ALSource->WetGainAuto) + { + for(i = 0;i < MAX_SENDS;i++) + wetsend[i] *= ConeVolume; + } if(ALSource->WetGainHFAuto) - WetGainHF *= (1.0f+(OuterGainHF-1.0f)); + { + for(i = 0;i < MAX_SENDS;i++) + wetgainhf[i] *= (1.0f+(OuterGainHF-1.0f)); + } } //4. Calculate Velocity @@ -784,32 +806,44 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, else pitch[0] = ALSource->flPitch; - if(ALSource->Send[0].Slot && - ALSource->Send[0].Slot->effect.type != AL_EFFECT_NULL) + for(i = 0;i < MAX_SENDS;i++) { - if(ALSource->Send[0].Slot->AuxSendAuto) + if(ALSource->Send[i].Slot && + ALSource->Send[i].Slot->effect.type != AL_EFFECT_NULL) { - // Apply minimal attenuation in place of missing statistical - // reverb model. - WetMix *= pow(DryMix, 1.0f / 2.0f); + if(ALSource->Send[i].Slot->AuxSendAuto) + { + // Apply minimal attenuation in place of missing + // statistical reverb model. + wetsend[i] *= pow(DryMix, 1.0f / 2.0f); + } + else + { + // If the slot's auxilliary send auto is off, the data sent to the + // effect slot is the same as the dry path, sans filter effects + wetsend[i] = DryMix; + wetgainhf[i] = DryGainHF; + } + + // Note that this is really applied by the effect slot. However, + // it's easier (more optimal) to handle it here. + if(ALSource->Send[i].Slot->effect.type == AL_EFFECT_REVERB) + wetgainhf[i] *= ALSource->Send[0].Slot->effect.Reverb.GainHF; } else { - // If the slot's auxilliary send auto is off, the data sent to the - // effect slot is the same as the dry path, sans filter effects - WetMix = DryMix; - WetGainHF = DryGainHF; + wetsend[i] = 0.0f; + wetgainhf[i] = 1.0f; } - // Note that this is really applied by the effect slot. However, - // it's easier (more optimal) to handle it here. - if(ALSource->Send[0].Slot->effect.type == AL_EFFECT_REVERB) - WetGainHF *= ALSource->Send[0].Slot->effect.Reverb.GainHF; - } - else - { - WetMix = 0.0f; - WetGainHF = 1.0f; + switch(ALSource->Send[i].WetFilter.type) + { + case AL_FILTER_LOWPASS: + wetsend[i] *= ALSource->Send[i].WetFilter.Gain; + wetgainhf[i] *= ALSource->Send[i].WetFilter.GainHF; + break; + } + wetsend[i] *= ListenerGain; } //5. Apply filter gains and filters @@ -820,17 +854,7 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, DryGainHF *= ALSource->DirectFilter.GainHF; break; } - - switch(ALSource->Send[0].WetFilter.type) - { - case AL_FILTER_LOWPASS: - WetMix *= ALSource->Send[0].WetFilter.Gain; - WetGainHF *= ALSource->Send[0].WetFilter.GainHF; - break; - } - DryMix *= ListenerGain; - WetMix *= ListenerGain; // Use energy-preserving panning algorithm for multi-speaker playback aluNormalize(Position); @@ -847,10 +871,7 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, ALfloat gain = SpeakerGain[s]*DirGain + AmbientGain; drysend[s] = DryMix * gain; } - *wetsend = WetMix; - *drygainhf = DryGainHF; - *wetgainhf = WetGainHF; } else { @@ -878,10 +899,13 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext, drysend[FRONT_CENTER] = DryMix * ListenerGain; drysend[BACK_CENTER] = DryMix * ListenerGain; drysend[LFE] = DryMix * ListenerGain; - *wetsend = 0.0f; + *drygainhf = DryGainHF; - *drygainhf = DryGainHF; - *wetgainhf = WetGainHF; + for(i = 0;i < MAX_SENDS;i++) + { + wetsend[i] = 0.0f; + wetgainhf[i] = 1.0f; + } } } @@ -894,17 +918,17 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma { static float DryBuffer[BUFFERSIZE][OUTPUTCHANNELS]; static float DummyBuffer[BUFFERSIZE]; - ALfloat *WetBuffer = NULL; + ALfloat *WetBuffer[MAX_SENDS]; ALfloat (*Matrix)[OUTPUTCHANNELS] = ALContext->ChannelMatrix; ALfloat newDrySend[OUTPUTCHANNELS] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f }; - ALfloat newWetSend = 0.0f; + ALfloat newWetSend[MAX_SENDS]; ALfloat DryGainHF = 0.0f; - ALfloat WetGainHF = 0.0f; + ALfloat WetGainHF[MAX_SENDS]; ALfloat *DrySend; ALfloat *WetSend; ALuint rampLength; ALfloat dryGainStep[OUTPUTCHANNELS]; - ALfloat wetGainStep; + ALfloat wetGainStep[MAX_SENDS]; ALuint BlockAlign,BufferSize; ALuint DataSize=0,DataPosInt=0,DataPosFrac=0; ALuint Channels,Frequency,ulExtraSamples; @@ -924,7 +948,7 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma ALbufferlistitem *BufferListItem; ALuint loop; ALint64 DataSize64,DataPos64; - FILTER *DryFilter, *WetFilter; + FILTER *DryFilter, *WetFilter[MAX_SENDS]; int fpuState; SuspendContext(ALContext); @@ -995,17 +1019,20 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma //Get source info DryFilter = &ALSource->iirFilter; - WetFilter = &ALSource->Send[0].iirFilter; - WetBuffer = (ALSource->Send[0].Slot ? - ALSource->Send[0].Slot->WetBuffer : - DummyBuffer); + for(i = 0;i < MAX_SENDS;i++) + { + WetFilter[i] = &ALSource->Send[i].iirFilter; + WetBuffer[i] = (ALSource->Send[i].Slot ? + ALSource->Send[i].Slot->WetBuffer : + DummyBuffer); + } DrySend = ALSource->DryGains; - WetSend = &ALSource->WetGain; + WetSend = ALSource->WetGains; CalcSourceParams(ALContext, ALSource, (Channels==1) ? AL_TRUE : AL_FALSE, - newDrySend, &newWetSend, &Pitch, - &DryGainHF, &WetGainHF); + newDrySend, newWetSend, &Pitch, + &DryGainHF, WetGainHF); Pitch = (Pitch*Frequency) / ALContext->Frequency; if(Channels == 1) @@ -1025,11 +1052,14 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma a = (1 - g*cw - aluSqrt(2*g*(1-cw) - g*g*(1 - cw*cw))) / (1 - g); DryFilter->coeff = a; - g = aluSqrt(__max(WetGainHF, 0.0001f)); - a = 0.0f; - if(g < 0.9999f) // 1-epsilon - a = (1 - g*cw - aluSqrt(2*g*(1-cw) - g*g*(1 - cw*cw))) / (1 - g); - WetFilter->coeff = a; + for(i = 0;i < MAX_SENDS;i++) + { + g = aluSqrt(__max(WetGainHF[i], 0.0001f)); + a = 0.0f; + 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; + } } else { @@ -1042,7 +1072,8 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma 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; - WetFilter->coeff = 0.0f; + for(i = 0;i < MAX_SENDS;i++) + WetFilter[i]->coeff = 0.0f; if(DuplicateStereo && Channels == 2) { @@ -1068,14 +1099,18 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma DrySend[i] = newDrySend[i]; dryGainStep[i] = 0; } - *WetSend = newWetSend; - wetGainStep = 0; + for(i = 0;i < MAX_SENDS;i++) + { + WetSend[i] = newWetSend[i]; + wetGainStep[i] = 0; + } } else { for(i = 0;i < OUTPUTCHANNELS;i++) dryGainStep[i] = (newDrySend[i]-DrySend[i]) / rampLength; - wetGainStep = (newWetSend-(*WetSend)) / rampLength; + for(i = 0;i < MAX_SENDS;i++) + wetGainStep[i] = (newWetSend[i]-WetSend[i]) / rampLength; } ALSource->FirstStart = AL_FALSE; @@ -1137,7 +1172,8 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma { for(i = 0;i < OUTPUTCHANNELS;i++) DrySend[i] += dryGainStep[i]; - *WetSend += wetGainStep; + for(i = 0;i < MAX_SENDS;i++) + WetSend[i] += wetGainStep[i]; //First order interpolator value = lerp(Data[k], Data[k+1], DataPosFrac); @@ -1154,8 +1190,11 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma DryBuffer[j][BACK_CENTER] += outsamp*DrySend[BACK_CENTER]; //Room path final mix buffer and panning - outsamp = lpFilter(WetFilter, value); - WetBuffer[j] += outsamp*(*WetSend); + for(i = 0;i < MAX_SENDS;i++) + { + outsamp = lpFilter(WetFilter[i], value); + WetBuffer[i][j] += outsamp*WetSend[i]; + } DataPosFrac += increment; k += DataPosFrac>>FRACTIONBITS; @@ -1170,7 +1209,8 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma }; #define DO_MIX() do { \ - *WetSend += wetGainStep*BufferSize; \ + for(i = 0;i < MAX_SENDS;i++) \ + WetSend[i] += wetGainStep[i]*BufferSize; \ while(BufferSize--) \ { \ for(i = 0;i < OUTPUTCHANNELS;i++) \ @@ -1242,9 +1282,10 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma } else /* Unknown? */ { - *WetSend += wetGainStep*BufferSize; for(i = 0;i < OUTPUTCHANNELS;i++) DrySend[i] += dryGainStep[i]*BufferSize; + for(i = 0;i < MAX_SENDS;i++) + WetSend[i] += wetGainStep[i]*BufferSize; while(BufferSize--) { DataPosFrac += increment; |