Handle the bsinc C resampler like the others

4 files changed, 37 insertions, 48 deletions

diff --git a/Alc/ALu.c b/Alc/ALu.c
index e5203d6e..182b226f 100644
--- a/Alc/ALu.c
+++ b/Alc/ALu.c
@@ -357,7 +357,7 @@ void BsincPrepare(const ALuint increment, BsincState *state, const BSincTable *t
 
     state->sf = sf;
     state->m = table->m[si];
-    state->l = -((state->m/2) - 1);
+    state->l = (state->m/2) - 1;
     state->filter = table->Tab + table->filterOffset[si];
 }
 
diff --git a/Alc/mixer/mixer_c.c b/Alc/mixer/mixer_c.c
index 25149e00..2dcd6c6b 100644
--- a/Alc/mixer/mixer_c.c
+++ b/Alc/mixer/mixer_c.c
@@ -9,12 +9,37 @@
 #include "defs.h"
 
 
-static inline ALfloat do_point(const ALfloat *restrict vals, ALsizei UNUSED(frac))
+static inline ALfloat do_point(const InterpState* UNUSED(state), const ALfloat *restrict vals, ALsizei UNUSED(frac))
 { return vals[0]; }
-static inline ALfloat do_lerp(const ALfloat *restrict vals, ALsizei frac)
+static inline ALfloat do_lerp(const InterpState* UNUSED(state), const ALfloat *restrict vals, ALsizei frac)
 { return lerp(vals[0], vals[1], frac * (1.0f/FRACTIONONE)); }
-static inline ALfloat do_cubic(const ALfloat *restrict vals, ALsizei frac)
+static inline ALfloat do_cubic(const InterpState* UNUSED(state), const ALfloat *restrict vals, ALsizei frac)
 { return cubic(vals[0], vals[1], vals[2], vals[3], frac * (1.0f/FRACTIONONE)); }
+static inline ALfloat do_bsinc(const InterpState *state, const ALfloat *restrict vals, ALsizei frac)
+{
+    const ALfloat *fil, *scd, *phd, *spd;
+    ALsizei j_f, pi;
+    ALfloat pf, r;
+
+    ASSUME(state->bsinc.m > 0);
+
+    // Calculate the phase index and factor.
+#define FRAC_PHASE_BITDIFF (FRACTIONBITS-BSINC_PHASE_BITS)
+    pi = frac >> FRAC_PHASE_BITDIFF;
+    pf = (frac & ((1<<FRAC_PHASE_BITDIFF)-1)) * (1.0f/(1<<FRAC_PHASE_BITDIFF));
+#undef FRAC_PHASE_BITDIFF
+
+    fil = ASSUME_ALIGNED(state->bsinc.filter + state->bsinc.m*pi*4, 16);
+    scd = ASSUME_ALIGNED(fil + state->bsinc.m, 16);
+    phd = ASSUME_ALIGNED(scd + state->bsinc.m, 16);
+    spd = ASSUME_ALIGNED(phd + state->bsinc.m, 16);
+
+    // Apply the scale and phase interpolated filter.
+    r = 0.0f;
+    for(j_f = 0;j_f < state->bsinc.m;j_f++)
+        r += (fil[j_f] + state->bsinc.sf*scd[j_f] + pf*(phd[j_f] + state->bsinc.sf*spd[j_f])) * vals[j_f];
+    return r;
+}
 
 const ALfloat *Resample_copy_C(const InterpState* UNUSED(state),
   const ALfloat *restrict src, ALsizei UNUSED(frac), ALint UNUSED(increment),
@@ -30,16 +55,19 @@ const ALfloat *Resample_copy_C(const InterpState* UNUSED(state),
 }
 
 #define DECL_TEMPLATE(Tag, Sampler, O)                                        \
-const ALfloat *Resample_##Tag##_C(const InterpState* UNUSED(state),           \
+const ALfloat *Resample_##Tag##_C(const InterpState *state,                   \
   const ALfloat *restrict src, ALsizei frac, ALint increment,                 \
   ALfloat *restrict dst, ALsizei numsamples)                                  \
 {                                                                             \
+    const InterpState istate = *state;                                        \
     ALsizei i;                                                                \
                                                                               \
+    ASSUME(numsamples > 0);                                                   \
+                                                                              \
     src -= O;                                                                 \
     for(i = 0;i < numsamples;i++)                                             \
     {                                                                         \
-        dst[i] = Sampler(src, frac);                                          \
+        dst[i] = Sampler(&istate, src, frac);                                 \
                                                                               \
         frac += increment;                                                    \
         src  += frac>>FRACTIONBITS;                                           \
@@ -51,49 +79,10 @@ const ALfloat *Resample_##Tag##_C(const InterpState* UNUSED(state),           \
 DECL_TEMPLATE(point, do_point, 0)
 DECL_TEMPLATE(lerp, do_lerp, 0)
 DECL_TEMPLATE(cubic, do_cubic, 1)
+DECL_TEMPLATE(bsinc, do_bsinc, istate.bsinc.l)
 
 #undef DECL_TEMPLATE
 
-const ALfloat *Resample_bsinc_C(const InterpState *state, const ALfloat *restrict src,
-                                ALsizei frac, ALint increment, ALfloat *restrict dst,
-                                ALsizei dstlen)
-{
-    const ALfloat *fil, *scd, *phd, *spd;
-    const ALfloat *const filter = state->bsinc.filter;
-    const ALfloat sf = state->bsinc.sf;
-    const ALsizei m = state->bsinc.m;
-    ALsizei j_f, pi, i;
-    ALfloat pf, r;
-
-    ASSUME(m > 0);
-
-    src += state->bsinc.l;
-    for(i = 0;i < dstlen;i++)
-    {
-        // Calculate the phase index and factor.
-#define FRAC_PHASE_BITDIFF (FRACTIONBITS-BSINC_PHASE_BITS)
-        pi = frac >> FRAC_PHASE_BITDIFF;
-        pf = (frac & ((1<<FRAC_PHASE_BITDIFF)-1)) * (1.0f/(1<<FRAC_PHASE_BITDIFF));
-#undef FRAC_PHASE_BITDIFF
-
-        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.
-        r = 0.0f;
-        for(j_f = 0;j_f < m;j_f++)
-            r += (fil[j_f] + sf*scd[j_f] + pf*(phd[j_f] + sf*spd[j_f])) * src[j_f];
-        dst[i] = r;
-
-        frac += increment;
-        src  += frac>>FRACTIONBITS;
-        frac &= FRACTIONMASK;
-    }
-    return dst;
-}
-
 
 static inline void ApplyCoeffs(ALsizei Offset, ALfloat (*restrict Values)[2],
                                const ALsizei IrSize,
diff --git a/Alc/mixer/mixer_neon.c b/Alc/mixer/mixer_neon.c
index db61fd41..0b8996fd 100644
--- a/Alc/mixer/mixer_neon.c
+++ b/Alc/mixer/mixer_neon.c
@@ -82,7 +82,7 @@ const ALfloat *Resample_bsinc_Neon(const InterpState *state,
     ASSUME(m > 0);
     ASSUME(dstlen > 0);
 
-    src += state->bsinc.l;
+    src -= state->bsinc.l;
     for(i = 0;i < dstlen;i++)
     {
         // Calculate the phase index and factor.
diff --git a/Alc/mixer/mixer_sse.c b/Alc/mixer/mixer_sse.c
index d7d54993..78cf26f1 100644
--- a/Alc/mixer/mixer_sse.c
+++ b/Alc/mixer/mixer_sse.c
@@ -27,7 +27,7 @@ const ALfloat *Resample_bsinc_SSE(const InterpState *state, const ALfloat *restr
     ASSUME(m > 0);
     ASSUME(dstlen > 0);
 
-    src += state->bsinc.l;
+    src -= state->bsinc.l;
     for(i = 0;i < dstlen;i++)
     {
         // Calculate the phase index and factor.