Make ComputeAngleGains use ComputeDirectionalGains

1 files changed, 4 insertions, 2 deletions

diff --git a/Alc/effects/flanger.c b/Alc/effects/flanger.c
index 6395f4bf..a38b3b13 100644
--- a/Alc/effects/flanger.c
+++ b/Alc/effects/flanger.c
@@ -93,6 +93,8 @@ static ALboolean ALflangerState_deviceUpdate(ALflangerState *state, ALCdevice *D
 
 static ALvoid ALflangerState_update(ALflangerState *state, ALCdevice *Device, const ALeffectslot *Slot)
 {
+    static const ALfloat left_dir[3] = { -1.0f, 0.0f, 0.0f };
+    static const ALfloat right_dir[3] = { 1.0f, 0.0f, 0.0f };
     ALfloat frequency = (ALfloat)Device->Frequency;
     ALfloat rate;
     ALint phase;
@@ -111,8 +113,8 @@ static ALvoid ALflangerState_update(ALflangerState *state, ALCdevice *Device, co
     state->delay = fastf2i(Slot->EffectProps.Flanger.Delay * frequency);
 
     /* Gains for left and right sides */
-    ComputeAngleGains(Device, atan2f(-1.0f, 0.0f), 0.0f, Slot->Gain, state->Gain[0]);
-    ComputeAngleGains(Device, atan2f(+1.0f, 0.0f), 0.0f, Slot->Gain, state->Gain[1]);
+    ComputeDirectionalGains(Device, left_dir, Slot->Gain, state->Gain[0]);
+    ComputeDirectionalGains(Device, right_dir, Slot->Gain, state->Gain[1]);
 
     phase = Slot->EffectProps.Flanger.Phase;
     rate = Slot->EffectProps.Flanger.Rate;