Add an HRTF status query

This can report the status of HRTF, specifying if it's enabled or not and why
(currently only reports unsupported formats, but this may be extended).

1 files changed, 5 insertions, 0 deletions

diff --git a/OpenAL32/Include/alMain.h b/OpenAL32/Include/alMain.h
index 361af851..fb2d810e 100644
--- a/OpenAL32/Include/alMain.h
+++ b/OpenAL32/Include/alMain.h
@@ -42,6 +42,10 @@
 #ifndef ALC_SOFT_HRTF
 #define ALC_SOFT_HRTF 1
 #define ALC_HRTF_SOFT                            0x1992
+#define ALC_HRTF_STATUS_SOFT                     0x1993
+#define ALC_HRTF_DISABLED_SOFT                   0x0000
+#define ALC_HRTF_ENABLED_SOFT                    0x0001
+#define ALC_HRTF_UNSUPPORTED_FORMAT_SOFT         0x0002
 #endif
 
 #ifndef ALC_SOFT_midi_interface
@@ -688,6 +692,7 @@ struct ALCdevice_struct
 
     /* HRTF filter tables */
     const struct Hrtf *Hrtf;
+    ALCenum Hrtf_Status;
     enum HrtfMode Hrtf_Mode;
     HrtfState Hrtf_State[MAX_OUTPUT_CHANNELS];
     HrtfParams Hrtf_Params[MAX_OUTPUT_CHANNELS];