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Reduce the number of send loops

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This commit is contained in:
Chris Robinson
2009-04-13 02:50:40 -07:00
parent 58f48f20e2
commit a30f431b63
1 changed files with 28 additions and 37 deletions
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Alc/ALu.c
+28 -37
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@@ -562,7 +562,7 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext,
ALfloat InnerAngle,OuterAngle,Angle,Distance,DryMix;
ALfloat Direction[3],Position[3],SourceToListener[3];
ALfloat MinVolume,MaxVolume,MinDist,MaxDist,Rolloff,OuterGainHF;
ALfloat ConeVolume,SourceVolume,ListenerGain;
ALfloat ConeVolume,ConeHF,SourceVolume,ListenerGain;
ALfloat U[3],V[3],N[3];
ALfloat DopplerFactor, DopplerVelocity, flSpeedOfSound, flMaxVelocity;
ALfloat Matrix[3][3];
@@ -596,8 +596,6 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext,
InnerAngle = ALSource->flInnerAngle;
OuterAngle = ALSource->flOuterAngle;
OuterGainHF = ALSource->OuterGainHF;
for(i = 0;i < MAX_SENDS;i++)
RoomRolloff[i] = ALSource->RoomRolloffFactor;
//Only apply 3D calculations for mono buffers
if(isMono != AL_FALSE)
@@ -644,16 +642,17 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext,
//2. Calculate distance attenuation
Distance = aluSqrt(aluDotproduct(Position, Position));
flAttenuation = 1.0f;
for(i = 0;i < MAX_SENDS;i++)
{
RoomAttenuation[i] = 1.0f;
RoomRolloff[i] = ALSource->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;
for(i = 0;i < MAX_SENDS;i++)
RoomAttenuation[i] = 1.0f;
switch (ALSource->DistanceModel)
{
case AL_INVERSE_DISTANCE_CLAMPED:
@@ -746,36 +745,23 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext,
{
ALfloat scale = (Angle-InnerAngle) / (OuterAngle-InnerAngle);
ConeVolume = (1.0f+(ALSource->flOuterGain-1.0f)*scale);
ConeHF = (1.0f+(OuterGainHF-1.0f)*scale);
DryMix *= 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)
{
for(i = 0;i < MAX_SENDS;i++)
wetgainhf[i] *= (1.0f+(OuterGainHF-1.0f)*scale);
}
DryGainHF *= ConeHF;
}
else if(Angle > OuterAngle)
{
ConeVolume = (1.0f+(ALSource->flOuterGain-1.0f));
ConeHF = (1.0f+(OuterGainHF-1.0f));
DryMix *= 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)
{
for(i = 0;i < MAX_SENDS;i++)
wetgainhf[i] *= (1.0f+(OuterGainHF-1.0f));
}
DryGainHF *= ConeHF;
}
else
{
ConeVolume = 1.0f;
ConeHF = 1.0f;
}
//4. Calculate Velocity
@@ -811,6 +797,11 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext,
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)
{
// Apply minimal attenuation in place of missing
@@ -829,21 +820,21 @@ static ALvoid CalcSourceParams(const ALCcontext *ALContext,
// 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;
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;
}
else
{
wetsend[i] = 0.0f;
wetgainhf[i] = 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