Use B-Format for HRTF's virtual output format

This adds the ability to directly decode B-Format with HRTF, though only first-
order (WXYZ) for now. Second- and third-order would be easilly doable, however
we'd need to be able to up-mix first-order content (from the BFORMAT2D and
BFORMAT3D buffer formats) since it would be inappropriate to decode lower-order
content with a higher-order decoder.

1 files changed, 1 insertions, 0 deletions

diff --git a/Alc/hrtf.h b/Alc/hrtf.h
index 3eaa4e28..122a4c58 100644
--- a/Alc/hrtf.h
+++ b/Alc/hrtf.h
@@ -23,5 +23,6 @@ void FreeHrtfs(void);
 ALuint GetHrtfIrSize(const struct Hrtf *Hrtf);
 void GetLerpedHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat azimuth, ALfloat dirfact, ALfloat gain, ALfloat (*coeffs)[2], ALuint *delays);
 ALuint GetMovingHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat azimuth, ALfloat dirfact, ALfloat gain, ALfloat delta, ALint counter, ALfloat (*coeffs)[2], ALuint *delays, ALfloat (*coeffStep)[2], ALint *delayStep);
+void GetBFormatHrtfCoeffs(const struct Hrtf *Hrtf, const ALfloat ambi_coeffs[4], ALfloat (*coeffs)[2], ALuint *delays);
 
 #endif /* ALC_HRTF_H */