Allow second-order HQ decoding

Could really do with some optimizations to the mixing gain calculations. For
ambisonic targets, the coefficients will only have 1 non-0 entry for each
output, so the double loop in unnecessarily wasteful. Similarly, most uses
won't need a full height encoding either, so a horizontal-only or mixed-order
target could reduce the number of channels.

1 files changed, 6 insertions, 1 deletions

diff --git a/OpenAL32/Include/alMain.h b/OpenAL32/Include/alMain.h
index b870059b..71620c3f 100644
--- a/OpenAL32/Include/alMain.h
+++ b/OpenAL32/Include/alMain.h
@@ -330,6 +330,11 @@ enum Channel {
     Aux1,
     Aux2,
     Aux3,
+    Aux4,
+    Aux5,
+    Aux6,
+    Aux7,
+    Aux8,
 
     InvalidChannel
 };
@@ -362,7 +367,7 @@ enum DevFmtChannels {
 
     DevFmtChannelsDefault = DevFmtStereo
 };
-#define MAX_OUTPUT_CHANNELS  (8)
+#define MAX_OUTPUT_CHANNELS  (9)
 
 ALuint BytesFromDevFmt(enum DevFmtType type) DECL_CONST;
 ALuint ChannelsFromDevFmt(enum DevFmtChannels chans) DECL_CONST;