Simplify bsinc filter storage in the filter state

Rather than storing individual pointers to filter, scale delta, phase delta,
and scale  phase delta entries, per phase index, the new table layout makes it
trivial to access the per-phase filter and delta entries given the base offset
and coefficient count.

1 files changed, 5 insertions, 4 deletions

diff --git a/Alc/mixer_sse.c b/Alc/mixer_sse.c
index 68786573..bd7928e4 100644
--- a/Alc/mixer_sse.c
+++ b/Alc/mixer_sse.c
@@ -16,6 +16,7 @@ const ALfloat *Resample_bsinc32_SSE(const InterpState *state, const ALfloat *res
                                     ALsizei frac, ALint increment, ALfloat *restrict dst,
                                     ALsizei dstlen)
 {
+    const ALfloat *filter = state->bsinc.filter;
     const __m128 sf4 = _mm_set1_ps(state->bsinc.sf);
     const ALsizei m = state->bsinc.m;
     const ALfloat *fil, *scd, *phd, *spd;
@@ -32,10 +33,10 @@ const ALfloat *Resample_bsinc32_SSE(const InterpState *state, const ALfloat *res
         pf = (frac & ((1<<FRAC_PHASE_BITDIFF)-1)) * (1.0f/(1<<FRAC_PHASE_BITDIFF));
 #undef FRAC_PHASE_BITDIFF
 
-        fil = ASSUME_ALIGNED(state->bsinc.coeffs[pi].filter, 16);
-        scd = ASSUME_ALIGNED(state->bsinc.coeffs[pi].scDelta, 16);
-        phd = ASSUME_ALIGNED(state->bsinc.coeffs[pi].phDelta, 16);
-        spd = ASSUME_ALIGNED(state->bsinc.coeffs[pi].spDelta, 16);
+        fil = ASSUME_ALIGNED(filter + m*pi*4, 16);
+        scd = ASSUME_ALIGNED(fil + m, 16);
+        phd = ASSUME_ALIGNED(scd + m, 16);
+        spd = ASSUME_ALIGNED(phd + m, 16);
 
         // Apply the scale and phase interpolated filter.
         r4 = _mm_setzero_ps();