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-rw-r--r--OpenAL32/Include/alu.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/OpenAL32/Include/alu.h b/OpenAL32/Include/alu.h
index fb16d143..0bf252f5 100644
--- a/OpenAL32/Include/alu.h
+++ b/OpenAL32/Include/alu.h
@@ -218,6 +218,14 @@ void ComputeDirectionalGains(const ALCdevice *device, const ALfloat dir[3], ALfl
void ComputeAngleGains(const ALCdevice *device, ALfloat angle, ALfloat elevation, ALfloat ingain, ALfloat gains[MaxChannels]);
/**
+ * ComputeBFormatGains
+ *
+ * Sets channel gains for a given (first-order) B-Format channel. The channel
+ * number must not be greater than 4, and the resulting gains may be negative.
+ */
+void ComputeBFormatGains(const ALCdevice *device, ALuint channum, ALfloat ingain, ALfloat gains[MaxChannels]);
+
+/**
* SetGains
*
* Helper to set the appropriate channels to the specified gain.