More directly map coefficients for ambisonic mixing buffers

Instead of looping over all the coefficients for each channel with multiplies,
when we know only one will have a non-0 factor for ambisonic mixing buffers,
just index the one with a non-0 factor.

1 files changed, 2 insertions, 6 deletions

diff --git a/Alc/effects/flanger.c b/Alc/effects/flanger.c
index c323c17a..e394f9f2 100644
--- a/Alc/effects/flanger.c
+++ b/Alc/effects/flanger.c
@@ -113,13 +113,9 @@ static ALvoid ALflangerState_update(ALflangerState *state, const ALCdevice *Devi
 
     /* Gains for left and right sides */
     CalcXYZCoeffs(-1.0f, 0.0f, 0.0f, coeffs);
-    ComputePanningGains(Device->Dry.AmbiCoeffs, Device->Dry.NumChannels,
-        Device->Dry.CoeffCount, coeffs, Slot->Gain, state->Gain[0]
-    );
+    ComputePanningGains(Device->Dry, coeffs, Slot->Gain, state->Gain[0]);
     CalcXYZCoeffs( 1.0f, 0.0f, 0.0f, coeffs);
-    ComputePanningGains(Device->Dry.AmbiCoeffs, Device->Dry.NumChannels,
-        Device->Dry.CoeffCount, coeffs, Slot->Gain, state->Gain[1]
-    );
+    ComputePanningGains(Device->Dry, coeffs, Slot->Gain, state->Gain[1]);
 
     phase = Slot->EffectProps.Flanger.Phase;
     rate = Slot->EffectProps.Flanger.Rate;