Use a separate method to set initial HRTF coefficients

1 files changed, 19 insertions, 0 deletions

diff --git a/Alc/mixer_neon.c b/Alc/mixer_neon.c
index 8ce17644..a068d02b 100644
--- a/Alc/mixer_neon.c
+++ b/Alc/mixer_neon.c
@@ -9,6 +9,25 @@
 #include "hrtf.h"
 
 
+static inline void SetupCoeffs(ALfloat (*restrict OutCoeffs)[2],
+                               const HrtfParams *hrtfparams,
+                               ALuint IrSize, ALuint Counter)
+{
+    ALuint c;
+    float32x4_t counter4;
+    {
+        float32x2_t counter2 = vdup_n_f32(-(float)Counter);
+        counter4 = vcombine_f32(counter2, counter2);
+    }
+    for(c = 0;c < IrSize;c += 2)
+    {
+        float32x4_t step4 = vld1q_f32((float32_t*)hrtfparams->CoeffStep[c]);
+        float32x4_t coeffs = vld1q_f32((float32_t*)hrtfparams->Coeffs[c]);
+        coeffs = vmlaq_f32(coeffs, step4, counter4);
+        vst1q_f32((float32_t*)OutCoeffs[c], coeffs);
+    }
+}
+
 static inline void ApplyCoeffsStep(ALuint Offset, ALfloat (*restrict Values)[2],
                                    const ALuint IrSize,
                                    ALfloat (*restrict Coeffs)[2],