diff options
Diffstat (limited to 'Alc')
| -rw-r--r-- | Alc/ALu.c | 40 |
1 files changed, 20 insertions, 20 deletions
@@ -321,7 +321,7 @@ ALvoid CalcNonAttnSourceParams(ALsource *ALSource, const ALCcontext *ALContext) ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext) { const ALCdevice *Device = ALContext->Device; - ALfloat InnerAngle,OuterAngle,Angle,Distance,OrigDist; + ALfloat InnerAngle,OuterAngle,Angle,Distance,ClampedDist; ALfloat Direction[3],Position[3],SourceToListener[3]; ALfloat Velocity[3],ListenerVel[3]; ALfloat MinVolume,MaxVolume,MinDist,MaxDist,Rolloff; @@ -417,7 +417,7 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext) //2. Calculate distance attenuation Distance = aluSqrt(aluDotproduct(Position, Position)); - OrigDist = Distance; + ClampedDist = Distance; Attenuation = 1.0f; for(i = 0;i < NumSends;i++) @@ -435,55 +435,55 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext) ALContext->DistanceModel) { case AL_INVERSE_DISTANCE_CLAMPED: - Distance=__max(Distance,MinDist); - Distance=__min(Distance,MaxDist); + ClampedDist=__max(ClampedDist,MinDist); + ClampedDist=__min(ClampedDist,MaxDist); if(MaxDist < MinDist) break; //fall-through case AL_INVERSE_DISTANCE: if(MinDist > 0.0f) { - if((MinDist + (Rolloff * (Distance - MinDist))) > 0.0f) - Attenuation = MinDist / (MinDist + (Rolloff * (Distance - MinDist))); + if((MinDist + (Rolloff * (ClampedDist - MinDist))) > 0.0f) + Attenuation = MinDist / (MinDist + (Rolloff * (ClampedDist - MinDist))); for(i = 0;i < NumSends;i++) { - if((MinDist + (RoomRolloff[i] * (Distance - MinDist))) > 0.0f) - RoomAttenuation[i] = MinDist / (MinDist + (RoomRolloff[i] * (Distance - MinDist))); + if((MinDist + (RoomRolloff[i] * (ClampedDist - MinDist))) > 0.0f) + RoomAttenuation[i] = MinDist / (MinDist + (RoomRolloff[i] * (ClampedDist - MinDist))); } } break; case AL_LINEAR_DISTANCE_CLAMPED: - Distance=__max(Distance,MinDist); - Distance=__min(Distance,MaxDist); + ClampedDist=__max(ClampedDist,MinDist); + ClampedDist=__min(ClampedDist,MaxDist); if(MaxDist < MinDist) break; //fall-through case AL_LINEAR_DISTANCE: if(MaxDist != MinDist) { - Attenuation = 1.0f - (Rolloff*(Distance-MinDist)/(MaxDist - MinDist)); + Attenuation = 1.0f - (Rolloff*(ClampedDist-MinDist)/(MaxDist - MinDist)); Attenuation = __max(Attenuation, 0.0f); for(i = 0;i < NumSends;i++) { - RoomAttenuation[i] = 1.0f - (RoomRolloff[i]*(Distance-MinDist)/(MaxDist - MinDist)); + RoomAttenuation[i] = 1.0f - (RoomRolloff[i]*(ClampedDist-MinDist)/(MaxDist - MinDist)); RoomAttenuation[i] = __max(RoomAttenuation[i], 0.0f); } } break; case AL_EXPONENT_DISTANCE_CLAMPED: - Distance=__max(Distance,MinDist); - Distance=__min(Distance,MaxDist); + ClampedDist=__max(ClampedDist,MinDist); + ClampedDist=__min(ClampedDist,MaxDist); if(MaxDist < MinDist) break; //fall-through case AL_EXPONENT_DISTANCE: - if(Distance > 0.0f && MinDist > 0.0f) + if(ClampedDist > 0.0f && MinDist > 0.0f) { - Attenuation = aluPow(Distance/MinDist, -Rolloff); + Attenuation = aluPow(ClampedDist/MinDist, -Rolloff); for(i = 0;i < NumSends;i++) - RoomAttenuation[i] = aluPow(Distance/MinDist, -RoomRolloff[i]); + RoomAttenuation[i] = aluPow(ClampedDist/MinDist, -RoomRolloff[i]); } break; @@ -664,9 +664,9 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext) { const ALshort *hrtf_left, *hrtf_right; - if(OrigDist > 0.0f) + if(Distance > 0.0f) { - ALfloat invlen = 1.0f/OrigDist; + ALfloat invlen = 1.0f/Distance; Position[0] *= invlen; Position[1] *= invlen; Position[2] *= invlen; @@ -684,7 +684,7 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext) } else { - length = __max(OrigDist, MinDist); + length = __max(Distance, MinDist); if(length > 0.0f) { ALfloat invlen = 1.0f/length; |