Handle 3D7.1 as a separate channel configuration

It's treated as 5.1 + 2 aux channels. This allows AL_DIRECT_CHANNELS_SOFT to
behave better, not forwarding rear left/right channel inputs to lower front and
upper rear, and allows reporting a more appropriate output mode to the app
instead of 7.1.

1 files changed, 0 insertions, 5 deletions

diff --git a/alc/backends/base.h b/alc/backends/base.h
index a3562f54..65bc636b 100644
--- a/alc/backends/base.h
+++ b/alc/backends/base.h
@@ -41,11 +41,6 @@ protected:
     void setDefaultChannelOrder();
     /** Sets the default channel order used by WaveFormatEx. */
     void setDefaultWFXChannelOrder();
-
-#ifdef _WIN32
-    /** Sets the channel order given the WaveFormatEx mask. */
-    void setChannelOrderFromWFXMask(uint chanmask);
-#endif
 };
 using BackendPtr = std::unique_ptr<BackendBase>;