diff options
Diffstat (limited to 'Alc')
| -rw-r--r-- | Alc/ALu.c | 66 |
1 files changed, 28 insertions, 38 deletions
@@ -259,17 +259,13 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, ALfloat *pitch, ALfloat *drygainhf, ALfloat *wetgainhf) { - ALfloat ListenerOrientation[6],ListenerPosition[3],ListenerVelocity[3]; - ALfloat InnerAngle,OuterAngle,OuterGain,Angle,Distance,DryMix,WetMix; - ALfloat Direction[3],Position[3],Velocity[3],SourceToListener[3]; + ALfloat InnerAngle,OuterAngle,Angle,Distance,DryMix,WetMix; + ALfloat Direction[3],Position[3],SourceToListener[3]; ALfloat MinVolume,MaxVolume,MinDist,MaxDist,Rolloff,OuterGainHF; - ALfloat Pitch,ConeVolume,SourceVolume,PanningFB,PanningLR,ListenerGain; + ALfloat ConeVolume,SourceVolume,PanningFB,PanningLR,ListenerGain; ALfloat U[3],V[3],N[3]; ALfloat DopplerFactor, DopplerVelocity, flSpeedOfSound, flMaxVelocity; - ALfloat flVSS, flVLS; - ALint DistanceModel; ALfloat Matrix[3][3]; - ALint HeadRelative; ALfloat flAttenuation; ALfloat RoomAttenuation; ALfloat MetersPerUnit; @@ -279,33 +275,24 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, //Get context properties DopplerFactor = ALContext->DopplerFactor; - DistanceModel = ALContext->DistanceModel; DopplerVelocity = ALContext->DopplerVelocity; flSpeedOfSound = ALContext->flSpeedOfSound; //Get listener properties ListenerGain = ALContext->Listener.Gain; MetersPerUnit = ALContext->Listener.MetersPerUnit; - memcpy(ListenerPosition, ALContext->Listener.Position, sizeof(ALContext->Listener.Position)); - memcpy(ListenerVelocity, ALContext->Listener.Velocity, sizeof(ALContext->Listener.Velocity)); - memcpy(&ListenerOrientation[0], ALContext->Listener.Forward, sizeof(ALContext->Listener.Forward)); - memcpy(&ListenerOrientation[3], ALContext->Listener.Up, sizeof(ALContext->Listener.Up)); //Get source properties - Pitch = ALSource->flPitch; SourceVolume = ALSource->flGain; memcpy(Position, ALSource->vPosition, sizeof(ALSource->vPosition)); - memcpy(Velocity, ALSource->vVelocity, sizeof(ALSource->vVelocity)); memcpy(Direction, ALSource->vOrientation, sizeof(ALSource->vOrientation)); MinVolume = ALSource->flMinGain; MaxVolume = ALSource->flMaxGain; MinDist = ALSource->flRefDistance; MaxDist = ALSource->flMaxDistance; Rolloff = ALSource->flRollOffFactor; - OuterGain = ALSource->flOuterGain; InnerAngle = ALSource->flInnerAngle; OuterAngle = ALSource->flOuterAngle; - HeadRelative = ALSource->bHeadRelative; OuterGainHF = ALSource->OuterGainHF; RoomRolloff = ALSource->RoomRolloffFactor; @@ -313,11 +300,11 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, if(isMono != AL_FALSE) { //1. Translate Listener to origin (convert to head relative) - if(HeadRelative==AL_FALSE) + if(ALSource->bHeadRelative==AL_FALSE) { - Position[0] -= ListenerPosition[0]; - Position[1] -= ListenerPosition[1]; - Position[2] -= ListenerPosition[2]; + Position[0] -= ALContext->Listener.Position[0]; + Position[1] -= ALContext->Listener.Position[1]; + Position[2] -= ALContext->Listener.Position[2]; } //2. Calculate distance attenuation @@ -325,7 +312,7 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, flAttenuation = 1.0f; RoomAttenuation = 1.0f; - switch (DistanceModel) + switch (ALContext->DistanceModel) { case AL_INVERSE_DISTANCE_CLAMPED: Distance=__max(Distance,MinDist); @@ -401,7 +388,7 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, if(Angle >= InnerAngle && Angle <= OuterAngle) { ALfloat scale = (Angle-InnerAngle) / (OuterAngle-InnerAngle); - ConeVolume = (1.0f+(OuterGain-1.0f)*scale); + ConeVolume = (1.0f+(ALSource->flOuterGain-1.0f)*scale); if(ALSource->WetGainAuto) WetMix *= ConeVolume; if(ALSource->DryGainHFAuto) @@ -411,7 +398,7 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, } else if(Angle > OuterAngle) { - ConeVolume = (1.0f+(OuterGain-1.0f)); + ConeVolume = (1.0f+(ALSource->flOuterGain-1.0f)); if(ALSource->WetGainAuto) WetMix *= ConeVolume; if(ALSource->DryGainHFAuto) @@ -425,8 +412,11 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, //4. Calculate Velocity if(DopplerFactor != 0.0f) { - flVLS = aluDotproduct(ListenerVelocity, SourceToListener); - flVSS = aluDotproduct(Velocity, SourceToListener); + ALfloat flVSS, flVLS; + + flVLS = aluDotproduct(ALContext->Listener.Velocity, + SourceToListener); + flVSS = aluDotproduct(ALSource->vVelocity, SourceToListener); flMaxVelocity = (DopplerVelocity * flSpeedOfSound) / DopplerFactor; @@ -440,19 +430,20 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, else if (flVLS <= -flMaxVelocity) flVLS = -flMaxVelocity + 1.0f; - pitch[0] = Pitch * ((flSpeedOfSound * DopplerVelocity) - (DopplerFactor * flVLS)) / - ((flSpeedOfSound * DopplerVelocity) - (DopplerFactor * flVSS)); + pitch[0] = ALSource->flPitch * + ((flSpeedOfSound * DopplerVelocity) - (DopplerFactor * flVLS)) / + ((flSpeedOfSound * DopplerVelocity) - (DopplerFactor * flVSS)); } else - pitch[0] = Pitch; + pitch[0] = ALSource->flPitch; //5. Align coordinate system axes - aluCrossproduct(&ListenerOrientation[0], &ListenerOrientation[3], U); // Right-vector - aluNormalize(U); // Normalized Right-vector - memcpy(V, &ListenerOrientation[3], sizeof(V)); // Up-vector - aluNormalize(V); // Normalized Up-vector - memcpy(N, &ListenerOrientation[0], sizeof(N)); // At-vector - aluNormalize(N); // Normalized At-vector + aluCrossproduct(ALContext->Listener.Forward, ALContext->Listener.Up, U); // Right-vector + aluNormalize(U); // Normalized Right-vector + memcpy(V, ALContext->Listener.Up, sizeof(V)); // Up-vector + aluNormalize(V); // Normalized Up-vector + memcpy(N, ALContext->Listener.Forward, sizeof(N)); // At-vector + aluNormalize(N); // Normalized At-vector Matrix[0][0] = U[0]; Matrix[0][1] = V[0]; Matrix[0][2] = -N[0]; Matrix[1][0] = U[1]; Matrix[1][1] = V[1]; Matrix[1][2] = -N[1]; Matrix[2][0] = U[2]; Matrix[2][1] = V[2]; Matrix[2][2] = -N[2]; @@ -655,7 +646,7 @@ static ALvoid CalcSourceParams(ALCcontext *ALContext, ALsource *ALSource, *wetgainhf = 1.0f; } - pitch[0] = Pitch; + pitch[0] = ALSource->flPitch; } } @@ -669,7 +660,7 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma ALfloat WetGainHF = 0.0f; ALuint BlockAlign,BufferSize; ALuint DataSize=0,DataPosInt=0,DataPosFrac=0; - ALuint Channels,Bits,Frequency,ulExtraSamples; + ALuint Channels,Frequency,ulExtraSamples; ALfloat Pitch; ALint Looping,increment,State; ALuint Buffer,fraction; @@ -719,7 +710,6 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma ALBuffer = (ALbuffer*)ALTHUNK_LOOKUPENTRY(Buffer); Data = ALBuffer->data; - Bits = aluBytesFromFormat(ALBuffer->format) * 8; Channels = aluChannelsFromFormat(ALBuffer->format); DataSize = ALBuffer->size; Frequency = ALBuffer->frequency; @@ -731,7 +721,7 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma Pitch = (Pitch*Frequency) / ALContext->Frequency; - DataSize = DataSize / (Bits*Channels/8); + DataSize /= Channels * aluBytesFromFormat(ALBuffer->format); //Get source info DataPosInt = ALSource->position; |