diff options
Diffstat (limited to 'Alc/alu.cpp')
| -rw-r--r-- | Alc/alu.cpp | 85 |
1 files changed, 48 insertions, 37 deletions
diff --git a/Alc/alu.cpp b/Alc/alu.cpp index 86425086..938e0929 100644 --- a/Alc/alu.cpp +++ b/Alc/alu.cpp @@ -419,41 +419,16 @@ bool CalcEffectSlotParams(ALeffectslot *slot, ALCcontext *context, bool force) } -constexpr ChanMap MonoMap[1]{ - { FrontCenter, 0.0f, 0.0f } -}, RearMap[2]{ - { BackLeft, Deg2Rad(-150.0f), Deg2Rad(0.0f) }, - { BackRight, Deg2Rad( 150.0f), Deg2Rad(0.0f) } -}, QuadMap[4]{ - { FrontLeft, Deg2Rad( -45.0f), Deg2Rad(0.0f) }, - { FrontRight, Deg2Rad( 45.0f), Deg2Rad(0.0f) }, - { BackLeft, Deg2Rad(-135.0f), Deg2Rad(0.0f) }, - { BackRight, Deg2Rad( 135.0f), Deg2Rad(0.0f) } -}, X51Map[6]{ - { FrontLeft, Deg2Rad( -30.0f), Deg2Rad(0.0f) }, - { FrontRight, Deg2Rad( 30.0f), Deg2Rad(0.0f) }, - { FrontCenter, Deg2Rad( 0.0f), Deg2Rad(0.0f) }, - { LFE, 0.0f, 0.0f }, - { SideLeft, Deg2Rad(-110.0f), Deg2Rad(0.0f) }, - { SideRight, Deg2Rad( 110.0f), Deg2Rad(0.0f) } -}, X61Map[7]{ - { FrontLeft, Deg2Rad(-30.0f), Deg2Rad(0.0f) }, - { FrontRight, Deg2Rad( 30.0f), Deg2Rad(0.0f) }, - { FrontCenter, Deg2Rad( 0.0f), Deg2Rad(0.0f) }, - { LFE, 0.0f, 0.0f }, - { BackCenter, Deg2Rad(180.0f), Deg2Rad(0.0f) }, - { SideLeft, Deg2Rad(-90.0f), Deg2Rad(0.0f) }, - { SideRight, Deg2Rad( 90.0f), Deg2Rad(0.0f) } -}, X71Map[8]{ - { FrontLeft, Deg2Rad( -30.0f), Deg2Rad(0.0f) }, - { FrontRight, Deg2Rad( 30.0f), Deg2Rad(0.0f) }, - { FrontCenter, Deg2Rad( 0.0f), Deg2Rad(0.0f) }, - { LFE, 0.0f, 0.0f }, - { BackLeft, Deg2Rad(-150.0f), Deg2Rad(0.0f) }, - { BackRight, Deg2Rad( 150.0f), Deg2Rad(0.0f) }, - { SideLeft, Deg2Rad( -90.0f), Deg2Rad(0.0f) }, - { SideRight, Deg2Rad( 90.0f), Deg2Rad(0.0f) } -}; +/* Scales the given azimuth toward the side (+/- pi/2 radians) for positions in + * front. + */ +inline float ScaleAzimuthFront(float azimuth, float scale) +{ + const ALfloat abs_azi{std::fabs(azimuth)}; + if(!(abs_azi > al::MathDefs<float>::Pi()*0.5f)) + return minf(abs_azi*scale, al::MathDefs<float>::Pi()*0.5f) * std::copysign(1.0f, azimuth); + return azimuth; +} void CalcPanningAndFilters(ALvoice *voice, const ALfloat xpos, const ALfloat ypos, const ALfloat zpos, const ALfloat Distance, const ALfloat Spread, const ALfloat DryGain, @@ -462,6 +437,42 @@ void CalcPanningAndFilters(ALvoice *voice, const ALfloat xpos, const ALfloat ypo ALeffectslot *(&SendSlots)[MAX_SENDS], const ALvoicePropsBase *props, const ALlistener &Listener, const ALCdevice *Device) { + static constexpr ChanMap MonoMap[1]{ + { FrontCenter, 0.0f, 0.0f } + }, RearMap[2]{ + { BackLeft, Deg2Rad(-150.0f), Deg2Rad(0.0f) }, + { BackRight, Deg2Rad( 150.0f), Deg2Rad(0.0f) } + }, QuadMap[4]{ + { FrontLeft, Deg2Rad( -45.0f), Deg2Rad(0.0f) }, + { FrontRight, Deg2Rad( 45.0f), Deg2Rad(0.0f) }, + { BackLeft, Deg2Rad(-135.0f), Deg2Rad(0.0f) }, + { BackRight, Deg2Rad( 135.0f), Deg2Rad(0.0f) } + }, X51Map[6]{ + { FrontLeft, Deg2Rad( -30.0f), Deg2Rad(0.0f) }, + { FrontRight, Deg2Rad( 30.0f), Deg2Rad(0.0f) }, + { FrontCenter, Deg2Rad( 0.0f), Deg2Rad(0.0f) }, + { LFE, 0.0f, 0.0f }, + { SideLeft, Deg2Rad(-110.0f), Deg2Rad(0.0f) }, + { SideRight, Deg2Rad( 110.0f), Deg2Rad(0.0f) } + }, X61Map[7]{ + { FrontLeft, Deg2Rad(-30.0f), Deg2Rad(0.0f) }, + { FrontRight, Deg2Rad( 30.0f), Deg2Rad(0.0f) }, + { FrontCenter, Deg2Rad( 0.0f), Deg2Rad(0.0f) }, + { LFE, 0.0f, 0.0f }, + { BackCenter, Deg2Rad(180.0f), Deg2Rad(0.0f) }, + { SideLeft, Deg2Rad(-90.0f), Deg2Rad(0.0f) }, + { SideRight, Deg2Rad( 90.0f), Deg2Rad(0.0f) } + }, X71Map[8]{ + { FrontLeft, Deg2Rad( -30.0f), Deg2Rad(0.0f) }, + { FrontRight, Deg2Rad( 30.0f), Deg2Rad(0.0f) }, + { FrontCenter, Deg2Rad( 0.0f), Deg2Rad(0.0f) }, + { LFE, 0.0f, 0.0f }, + { BackLeft, Deg2Rad(-150.0f), Deg2Rad(0.0f) }, + { BackRight, Deg2Rad( 150.0f), Deg2Rad(0.0f) }, + { SideLeft, Deg2Rad( -90.0f), Deg2Rad(0.0f) }, + { SideRight, Deg2Rad( 90.0f), Deg2Rad(0.0f) } + }; + ChanMap StereoMap[2]{ { FrontLeft, Deg2Rad(-30.0f), Deg2Rad(0.0f) }, { FrontRight, Deg2Rad( 30.0f), Deg2Rad(0.0f) } @@ -590,7 +601,7 @@ void CalcPanningAndFilters(ALvoice *voice, const ALfloat xpos, const ALfloat ypo ALfloat coeffs[MAX_AMBI_CHANNELS]; if(Device->mRenderMode != StereoPair) - CalcAmbiCoeffs(-xpos, ypos, -zpos, Spread, coeffs); + CalcDirectionCoeffs((float[3]){xpos, ypos, zpos}, Spread, coeffs); else { /* Clamp Y, in case rounding errors caused it to end up outside @@ -823,7 +834,7 @@ void CalcPanningAndFilters(ALvoice *voice, const ALfloat xpos, const ALfloat ypo */ ALfloat coeffs[MAX_AMBI_CHANNELS]; if(Device->mRenderMode != StereoPair) - CalcAmbiCoeffs(-xpos, ypos, -zpos, Spread, coeffs); + CalcDirectionCoeffs((float[3]){xpos, ypos, zpos}, Spread, coeffs); else { const ALfloat ev{std::asin(clampf(ypos, -1.0f, 1.0f))}; |