Avoid mixing all coefficients together when only some are used

1 files changed, 4 insertions, 0 deletions

diff --git a/OpenAL32/Include/alMain.h b/OpenAL32/Include/alMain.h
index 9ba6d050..52296a15 100644
--- a/OpenAL32/Include/alMain.h
+++ b/OpenAL32/Include/alMain.h
@@ -511,6 +511,10 @@ struct ALCdevice_struct
         enum Channel ChannelName[MAX_OUTPUT_CHANNELS];
         /* Ambisonic coefficients for mixing to the dry buffer. */
         ChannelConfig AmbiCoeffs[MAX_OUTPUT_CHANNELS];
+        /* Number of coefficients in each ChannelConfig to mix together (4 for
+         * first-order, 9 for second-order, etc).
+         */
+        ALuint CoeffCount;
 
         /* Dry buffer will be aliased by the virtual or real output. */
         ALfloat (*Buffer)[BUFFERSIZE];