From 6d1622dc68073e08dff6149280096f8f1d9a0a2e Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Fri, 6 Jun 2014 01:52:53 -0700
Subject: Move InitiatePositionArrays to mixer_defs.h

---
 Alc/mixer.c       |  3 +++
 Alc/mixer_defs.h  | 15 +++++++++++++++
 Alc/mixer_sse2.c  | 23 +----------------------
 Alc/mixer_sse41.c | 25 ++-----------------------
 4 files changed, 21 insertions(+), 45 deletions(-)

diff --git a/Alc/mixer.c b/Alc/mixer.c
index 8830a3fe..6a4abfc6 100644
--- a/Alc/mixer.c
+++ b/Alc/mixer.c
@@ -37,6 +37,9 @@
 #include "bs2b.h"
 
 
+extern inline void InitiatePositionArrays(ALuint frac, ALuint increment, ALuint *frac_arr, ALuint *pos_arr, ALuint size);
+
+
 static inline ALfloat Sample_ALbyte(ALbyte val)
 { return val * (1.0f/127.0f); }
 
diff --git a/Alc/mixer_defs.h b/Alc/mixer_defs.h
index 94e0b24f..caa06c25 100644
--- a/Alc/mixer_defs.h
+++ b/Alc/mixer_defs.h
@@ -4,6 +4,7 @@
 #include "AL/alc.h"
 #include "AL/al.h"
 #include "alMain.h"
+#include "alu.h"
 
 struct MixGains;
 struct MixGainMono;
@@ -43,6 +44,20 @@ void MixSend_SSE(ALfloat (*restrict OutBuffer)[BUFFERSIZE], const ALfloat *data,
                  ALuint BufferSize);
 
 /* SSE resamplers */
+inline void InitiatePositionArrays(ALuint frac, ALuint increment, ALuint *frac_arr, ALuint *pos_arr, ALuint size)
+{
+    ALuint i;
+
+    pos_arr[0] = 0;
+    frac_arr[0] = frac;
+    for(i = 1;i < size;i++)
+    {
+        ALuint frac_tmp = frac_arr[i-1] + increment;
+        pos_arr[i] = pos_arr[i-1] + (frac_tmp>>FRACTIONBITS);
+        frac_arr[i] = frac_tmp&FRACTIONMASK;
+    }
+}
+
 const ALfloat *Resample_lerp32_SSE2(const ALfloat *src, ALuint frac, ALuint increment,
                                     ALfloat *restrict dst, ALuint numsamples);
 const ALfloat *Resample_lerp32_SSE41(const ALfloat *src, ALuint frac, ALuint increment,
diff --git a/Alc/mixer_sse2.c b/Alc/mixer_sse2.c
index b1cfa598..0d85365e 100644
--- a/Alc/mixer_sse2.c
+++ b/Alc/mixer_sse2.c
@@ -27,27 +27,6 @@
 #include "mixer_defs.h"
 
 
-static inline void InitiatePositionArrays(ALuint frac, ALuint increment,
-                                          ALuint *frac_arr, ALuint *pos_arr)
-{
-    ALuint frac_tmp;
-
-    pos_arr[0] = 0;
-    frac_arr[0] = frac;
-
-    frac_tmp = frac_arr[0] + increment;
-    pos_arr[1] = pos_arr[0] + (frac_tmp>>FRACTIONBITS);
-    frac_arr[1] = frac_tmp & FRACTIONMASK;
-
-    frac_tmp = frac_arr[1] + increment;
-    pos_arr[2] = pos_arr[1] + (frac_tmp>>FRACTIONBITS);
-    frac_arr[2] = frac_tmp & FRACTIONMASK;
-
-    frac_tmp = frac_arr[2] + increment;
-    pos_arr[3] = pos_arr[2] + (frac_tmp>>FRACTIONBITS);
-    frac_arr[3] = frac_tmp & FRACTIONMASK;
-}
-
 const ALfloat *Resample_lerp32_SSE2(const ALfloat *src, ALuint frac, ALuint increment,
                                     ALfloat *restrict dst, ALuint numsamples)
 {
@@ -60,7 +39,7 @@ const ALfloat *Resample_lerp32_SSE2(const ALfloat *src, ALuint frac, ALuint incr
     ALuint pos;
     ALuint i;
 
-    InitiatePositionArrays(frac, increment, frac_.i, pos_.i);
+    InitiatePositionArrays(frac, increment, frac_.i, pos_.i, 4);
 
     frac4 = _mm_castps_si128(_mm_load_ps(frac_.f));
     pos4 = _mm_castps_si128(_mm_load_ps(pos_.f));
diff --git a/Alc/mixer_sse41.c b/Alc/mixer_sse41.c
index 958fecec..db89abfa 100644
--- a/Alc/mixer_sse41.c
+++ b/Alc/mixer_sse41.c
@@ -28,27 +28,6 @@
 #include "mixer_defs.h"
 
 
-static inline void InitiatePositionArrays(ALuint frac, ALuint increment,
-                                          ALuint *frac_arr, ALuint *pos_arr)
-{
-    ALuint frac_tmp;
-
-    pos_arr[0] = 0;
-    frac_arr[0] = frac;
-
-    frac_tmp = frac_arr[0] + increment;
-    pos_arr[1] = pos_arr[0] + (frac_tmp>>FRACTIONBITS);
-    frac_arr[1] = frac_tmp & FRACTIONMASK;
-
-    frac_tmp = frac_arr[1] + increment;
-    pos_arr[2] = pos_arr[1] + (frac_tmp>>FRACTIONBITS);
-    frac_arr[2] = frac_tmp & FRACTIONMASK;
-
-    frac_tmp = frac_arr[2] + increment;
-    pos_arr[3] = pos_arr[2] + (frac_tmp>>FRACTIONBITS);
-    frac_arr[3] = frac_tmp & FRACTIONMASK;
-}
-
 const ALfloat *Resample_lerp32_SSE41(const ALfloat *src, ALuint frac, ALuint increment,
                                      ALfloat *restrict dst, ALuint numsamples)
 {
@@ -61,12 +40,12 @@ const ALfloat *Resample_lerp32_SSE41(const ALfloat *src, ALuint frac, ALuint inc
     ALuint pos;
     ALuint i;
 
-    InitiatePositionArrays(frac, increment, frac_.i, pos_.i);
+    InitiatePositionArrays(frac, increment, frac_.i, pos_.i, 4);
 
     frac4 = _mm_castps_si128(_mm_load_ps(frac_.f));
     pos4 = _mm_castps_si128(_mm_load_ps(pos_.f));
 
-    for(i = 0;i < numsamples-3;i += 4)
+    for(i = 0;numsamples-i > 3;i += 4)
     {
         const __m128 val1 = _mm_setr_ps(src[pos_.i[0]], src[pos_.i[1]], src[pos_.i[2]], src[pos_.i[3]]);
         const __m128 val2 = _mm_setr_ps(src[pos_.i[0]+1], src[pos_.i[1]+1], src[pos_.i[2]+1], src[pos_.i[3]+1]);
-- 
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