Remove the head_dampen option

Now that HRTF is properly supported, it's not needed

2 files changed, 0 insertions, 26 deletions

diff --git a/Alc/ALc.c b/Alc/ALc.c
index 401441b6..84478ada 100644
--- a/Alc/ALc.c
+++ b/Alc/ALc.c
@@ -1217,14 +1217,6 @@ static ALCboolean UpdateDeviceParams(ALCdevice *device, const ALCint *attrList)
         device->Bs2b = NULL;
     }
 
-    device->HeadDampen = 0.0f;
-    if(!(device->Flags&DEVICE_USE_HRTF) && ChannelsFromDevFmt(device->FmtChans) <= 2)
-    {
-        device->HeadDampen = GetConfigValueFloat(NULL, "head_dampen", DEFAULT_HEAD_DAMPEN);
-        device->HeadDampen = __min(device->HeadDampen, 1.0f);
-        device->HeadDampen = __max(device->HeadDampen, 0.0f);
-    }
-
     return ALC_TRUE;
 }
 
@@ -2354,8 +2346,6 @@ ALC_API ALCdevice* ALC_APIENTRY alcOpenDevice(const ALCchar *deviceName)
     if(GetConfigValueBool(NULL, "stereodup", AL_TRUE))
         device->Flags |= DEVICE_DUPLICATE_STEREO;
 
-    device->HeadDampen = 0.0f;
-
     // Find a playback device to open
     SuspendContext(NULL);
     for(i = 0;BackendList[i].Init;i++)
@@ -2531,8 +2521,6 @@ ALC_API ALCdevice* ALC_APIENTRY alcLoopbackOpenDeviceSOFT(void)
     if(GetConfigValueBool(NULL, "stereodup", AL_TRUE))
         device->Flags |= DEVICE_DUPLICATE_STEREO;
 
-    device->HeadDampen = 0.0f;
-
     // Open the "backend"
     SuspendContext(NULL);
     device->Funcs = &BackendLoopback.Funcs;
diff --git a/Alc/ALu.c b/Alc/ALu.c
index 5657da22..456f9de8 100644
--- a/Alc/ALu.c
+++ b/Alc/ALu.c
@@ -666,20 +666,6 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext)
         ConeHF = 1.0f;
     }
 
-    // Apply some high-frequency attenuation for sources behind the listener
-    // NOTE: This should be aluDotproduct({0,0,-1}, ListenerToSource), however
-    // that is equivalent to aluDotproduct({0,0,1}, SourceToListener), which is
-    // the same as SourceToListener[2]
-    Angle = aluAcos(SourceToListener[2]) * 180.0f/M_PI;
-    // Sources within the minimum distance attenuate less
-    if(OrigDist < MinDist)
-        Angle *= OrigDist/MinDist;
-    if(Angle > 90.0f)
-    {
-        ALfloat scale = (Angle-90.0f) / (180.1f-90.0f); // .1 to account for fp errors
-        ConeHF *= 1.0f - (Device->HeadDampen*scale);
-    }
-
     DryGain *= ConeVolume;
     if(ALSource->DryGainHFAuto)
         DryGainHF *= ConeHF;