Add a head-dampening option

This simulates occlusion of the player's head for sounds coming from behind,
when outputing to mono or stereo

1 files changed, 5 insertions, 0 deletions

diff --git a/OpenAL32/Include/alMain.h b/OpenAL32/Include/alMain.h
index 324c18fa..cb290e0c 100644
--- a/OpenAL32/Include/alMain.h
+++ b/OpenAL32/Include/alMain.h
@@ -163,6 +163,8 @@ static __inline void al_print(const char *fname, unsigned int line, const char *
 
 #define LOWPASSFREQCUTOFF          (5000)
 
+#define DEFAULT_HEAD_DAMPEN        (0.25f)
+
 
 // Find the next power-of-2 for non-power-of-2 numbers.
 static __inline ALuint NextPowerOf2(ALuint value)
@@ -269,6 +271,9 @@ struct ALCdevice_struct
     struct bs2b *Bs2b;
     ALCint       Bs2bLevel;
 
+    // Simulated dampening from head occlusion
+    ALfloat      HeadDampen;
+
     // Dry path buffer mix
     float DryBuffer[BUFFERSIZE][OUTPUTCHANNELS];