split vpx_highbd_lpf_horizontal_16 in two

replace with vpx_highbd_lpf_horizontal_edge_16 and
vpx_highbd_lpf_horizontal_edge_8 to avoid passing a count parameter

Change-Id: I551f8cec0fce57032cb2652584bb802e2248644d
diff --git a/test/lpf_8_test.cc b/test/lpf_8_test.cc
index 9ddbf71..13a4c47 100644
--- a/test/lpf_8_test.cc
+++ b/test/lpf_8_test.cc
@@ -475,10 +475,10 @@
                    &wrapper_nc<vpx_highbd_lpf_vertical_4_c>, 8, 1),
         make_tuple(&wrapper_nc<vpx_highbd_lpf_horizontal_8_sse2>,
                    &wrapper_nc<vpx_highbd_lpf_horizontal_8_c>, 8, 1),
-        make_tuple(&vpx_highbd_lpf_horizontal_16_sse2,
-                   &vpx_highbd_lpf_horizontal_16_c, 8, 1),
-        make_tuple(&vpx_highbd_lpf_horizontal_16_sse2,
-                   &vpx_highbd_lpf_horizontal_16_c, 8, 2),
+        make_tuple(&wrapper_nc<vpx_highbd_lpf_horizontal_edge_8_sse2>,
+                   &wrapper_nc<vpx_highbd_lpf_horizontal_edge_8_c>, 8, 1),
+        make_tuple(&wrapper_nc<vpx_highbd_lpf_horizontal_edge_16_sse2>,
+                   &wrapper_nc<vpx_highbd_lpf_horizontal_edge_16_c>, 8, 1),
         make_tuple(&wrapper_nc<vpx_highbd_lpf_vertical_8_sse2>,
                    &wrapper_nc<vpx_highbd_lpf_vertical_8_c>, 8, 1),
         make_tuple(&wrapper_nc<vpx_highbd_lpf_vertical_16_sse2>,
@@ -489,10 +489,10 @@
                    &wrapper_nc<vpx_highbd_lpf_vertical_4_c>, 10, 1),
         make_tuple(&wrapper_nc<vpx_highbd_lpf_horizontal_8_sse2>,
                    &wrapper_nc<vpx_highbd_lpf_horizontal_8_c>, 10, 1),
-        make_tuple(&vpx_highbd_lpf_horizontal_16_sse2,
-                   &vpx_highbd_lpf_horizontal_16_c, 10, 1),
-        make_tuple(&vpx_highbd_lpf_horizontal_16_sse2,
-                   &vpx_highbd_lpf_horizontal_16_c, 10, 2),
+        make_tuple(&wrapper_nc<vpx_highbd_lpf_horizontal_edge_8_sse2>,
+                   &wrapper_nc<vpx_highbd_lpf_horizontal_edge_8_c>, 10, 1),
+        make_tuple(&wrapper_nc<vpx_highbd_lpf_horizontal_edge_16_sse2>,
+                   &wrapper_nc<vpx_highbd_lpf_horizontal_edge_16_c>, 10, 1),
         make_tuple(&wrapper_nc<vpx_highbd_lpf_vertical_8_sse2>,
                    &wrapper_nc<vpx_highbd_lpf_vertical_8_c>, 10, 1),
         make_tuple(&wrapper_nc<vpx_highbd_lpf_vertical_16_sse2>,
@@ -503,10 +503,10 @@
                    &wrapper_nc<vpx_highbd_lpf_vertical_4_c>, 12, 1),
         make_tuple(&wrapper_nc<vpx_highbd_lpf_horizontal_8_sse2>,
                    &wrapper_nc<vpx_highbd_lpf_horizontal_8_c>, 12, 1),
-        make_tuple(&vpx_highbd_lpf_horizontal_16_sse2,
-                   &vpx_highbd_lpf_horizontal_16_c, 12, 1),
-        make_tuple(&vpx_highbd_lpf_horizontal_16_sse2,
-                   &vpx_highbd_lpf_horizontal_16_c, 12, 2),
+        make_tuple(&wrapper_nc<vpx_highbd_lpf_horizontal_edge_8_sse2>,
+                   &wrapper_nc<vpx_highbd_lpf_horizontal_edge_8_c>, 12, 1),
+        make_tuple(&wrapper_nc<vpx_highbd_lpf_horizontal_edge_16_sse2>,
+                   &wrapper_nc<vpx_highbd_lpf_horizontal_edge_16_c>, 12, 1),
         make_tuple(&wrapper_nc<vpx_highbd_lpf_vertical_8_sse2>,
                    &wrapper_nc<vpx_highbd_lpf_vertical_8_c>, 12, 1),
         make_tuple(&wrapper_nc<vpx_highbd_lpf_vertical_16_sse2>,
diff --git a/vp10/common/loopfilter.c b/vp10/common/loopfilter.c
index 3fe316d..11dfe6d 100644
--- a/vp10/common/loopfilter.c
+++ b/vp10/common/loopfilter.c
@@ -609,12 +609,12 @@
     if (mask & 1) {
       if (mask_16x16 & 1) {
         if ((mask_16x16 & 3) == 3) {
-          vpx_highbd_lpf_horizontal_16(s, pitch, lfi->mblim, lfi->lim,
-                                       lfi->hev_thr, 2, bd);
+          vpx_highbd_lpf_horizontal_edge_16(s, pitch, lfi->mblim, lfi->lim,
+                                            lfi->hev_thr, bd);
           count = 2;
         } else {
-          vpx_highbd_lpf_horizontal_16(s, pitch, lfi->mblim, lfi->lim,
-                                       lfi->hev_thr, 1, bd);
+          vpx_highbd_lpf_horizontal_edge_8(s, pitch, lfi->mblim, lfi->lim,
+                                           lfi->hev_thr, bd);
         }
       } else if (mask_8x8 & 1) {
         if ((mask_8x8 & 3) == 3) {
diff --git a/vp9/common/vp9_loopfilter.c b/vp9/common/vp9_loopfilter.c
index aae0a33..ee20cc5 100644
--- a/vp9/common/vp9_loopfilter.c
+++ b/vp9/common/vp9_loopfilter.c
@@ -609,12 +609,12 @@
     if (mask & 1) {
       if (mask_16x16 & 1) {
         if ((mask_16x16 & 3) == 3) {
-          vpx_highbd_lpf_horizontal_16(s, pitch, lfi->mblim, lfi->lim,
-                                       lfi->hev_thr, 2, bd);
+          vpx_highbd_lpf_horizontal_edge_16(s, pitch, lfi->mblim, lfi->lim,
+                                            lfi->hev_thr, bd);
           count = 2;
         } else {
-          vpx_highbd_lpf_horizontal_16(s, pitch, lfi->mblim, lfi->lim,
-                                       lfi->hev_thr, 1, bd);
+          vpx_highbd_lpf_horizontal_edge_8(s, pitch, lfi->mblim, lfi->lim,
+                                           lfi->hev_thr, bd);
         }
       } else if (mask_8x8 & 1) {
         if ((mask_8x8 & 3) == 3) {
diff --git a/vpx_dsp/loopfilter.c b/vpx_dsp/loopfilter.c
index f866a3d..46ef646 100644
--- a/vpx_dsp/loopfilter.c
+++ b/vpx_dsp/loopfilter.c
@@ -669,9 +669,11 @@
   }
 }
 
-void vpx_highbd_lpf_horizontal_16_c(uint16_t *s, int p, const uint8_t *blimit,
-                                    const uint8_t *limit, const uint8_t *thresh,
-                                    int count, int bd) {
+static void highbd_mb_lpf_horizontal_edge_w(uint16_t *s, int p,
+                                            const uint8_t *blimit,
+                                            const uint8_t *limit,
+                                            const uint8_t *thresh,
+                                            int count, int bd) {
   int i;
 
   // loop filter designed to work using chars so that we can make maximum use
@@ -703,6 +705,20 @@
   }
 }
 
+void vpx_highbd_lpf_horizontal_edge_8_c(uint16_t *s, int p,
+                                        const uint8_t *blimit,
+                                        const uint8_t *limit,
+                                        const uint8_t *thresh, int bd) {
+  highbd_mb_lpf_horizontal_edge_w(s, p, blimit, limit, thresh, 1, bd);
+}
+
+void vpx_highbd_lpf_horizontal_edge_16_c(uint16_t *s, int p,
+                                         const uint8_t *blimit,
+                                         const uint8_t *limit,
+                                         const uint8_t *thresh, int bd) {
+  highbd_mb_lpf_horizontal_edge_w(s, p, blimit, limit, thresh, 2, bd);
+}
+
 static void highbd_mb_lpf_vertical_edge_w(uint16_t *s, int p,
                                           const uint8_t *blimit,
                                           const uint8_t *limit,
diff --git a/vpx_dsp/vpx_dsp_rtcd_defs.pl b/vpx_dsp/vpx_dsp_rtcd_defs.pl
index 557b4c5..d7835f4 100644
--- a/vpx_dsp/vpx_dsp_rtcd_defs.pl
+++ b/vpx_dsp/vpx_dsp_rtcd_defs.pl
@@ -588,8 +588,11 @@
   add_proto qw/void vpx_highbd_lpf_vertical_4_dual/, "uint16_t *s, int pitch, const uint8_t *blimit0, const uint8_t *limit0, const uint8_t *thresh0, const uint8_t *blimit1, const uint8_t *limit1, const uint8_t *thresh1, int bd";
   specialize qw/vpx_highbd_lpf_vertical_4_dual sse2/;
 
-  add_proto qw/void vpx_highbd_lpf_horizontal_16/, "uint16_t *s, int pitch, const uint8_t *blimit, const uint8_t *limit, const uint8_t *thresh, int count, int bd";
-  specialize qw/vpx_highbd_lpf_horizontal_16 sse2/;
+  add_proto qw/void vpx_highbd_lpf_horizontal_edge_8/, "uint16_t *s, int pitch, const uint8_t *blimit, const uint8_t *limit, const uint8_t *thresh, int bd";
+  specialize qw/vpx_highbd_lpf_horizontal_edge_8 sse2/;
+
+  add_proto qw/void vpx_highbd_lpf_horizontal_edge_16/, "uint16_t *s, int pitch, const uint8_t *blimit, const uint8_t *limit, const uint8_t *thresh, int bd";
+  specialize qw/vpx_highbd_lpf_horizontal_edge_16 sse2/;
 
   add_proto qw/void vpx_highbd_lpf_horizontal_8/, "uint16_t *s, int pitch, const uint8_t *blimit, const uint8_t *limit, const uint8_t *thresh, int bd";
   specialize qw/vpx_highbd_lpf_horizontal_8 sse2/;
diff --git a/vpx_dsp/x86/highbd_loopfilter_sse2.c b/vpx_dsp/x86/highbd_loopfilter_sse2.c
index 73deb73..72e42ad 100644
--- a/vpx_dsp/x86/highbd_loopfilter_sse2.c
+++ b/vpx_dsp/x86/highbd_loopfilter_sse2.c
@@ -51,12 +51,10 @@
 
 // TODO(debargha, peter): Break up large functions into smaller ones
 // in this file.
-static void highbd_mb_lpf_horizontal_edge_w_sse2_8(uint16_t *s,
-                                                   int p,
-                                                   const uint8_t *_blimit,
-                                                   const uint8_t *_limit,
-                                                   const uint8_t *_thresh,
-                                                   int bd) {
+void vpx_highbd_lpf_horizontal_edge_8_sse2(uint16_t *s, int p,
+                                           const uint8_t *_blimit,
+                                           const uint8_t *_limit,
+                                           const uint8_t *_thresh, int bd) {
   const __m128i zero = _mm_set1_epi16(0);
   const __m128i one = _mm_set1_epi16(1);
   __m128i blimit, limit, thresh;
@@ -496,27 +494,12 @@
   _mm_store_si128((__m128i *)(s - 0 * p), q0);
 }
 
-static void highbd_mb_lpf_horizontal_edge_w_sse2_16(uint16_t *s,
-                                                    int p,
-                                                    const uint8_t *_blimit,
-                                                    const uint8_t *_limit,
-                                                    const uint8_t *_thresh,
-                                                    int bd) {
-  highbd_mb_lpf_horizontal_edge_w_sse2_8(s, p, _blimit, _limit, _thresh, bd);
-  highbd_mb_lpf_horizontal_edge_w_sse2_8(s + 8, p, _blimit, _limit, _thresh,
-                                         bd);
-}
-
-// TODO(yunqingwang): remove count and call these 2 functions(8 or 16) directly.
-void vpx_highbd_lpf_horizontal_16_sse2(uint16_t *s, int p,
-                                       const uint8_t *_blimit,
-                                       const uint8_t *_limit,
-                                       const uint8_t *_thresh,
-                                       int count, int bd) {
-  if (count == 1)
-    highbd_mb_lpf_horizontal_edge_w_sse2_8(s, p, _blimit, _limit, _thresh, bd);
-  else
-    highbd_mb_lpf_horizontal_edge_w_sse2_16(s, p, _blimit, _limit, _thresh, bd);
+void vpx_highbd_lpf_horizontal_edge_16_sse2(uint16_t *s, int p,
+                                            const uint8_t *_blimit,
+                                            const uint8_t *_limit,
+                                            const uint8_t *_thresh, int bd) {
+  vpx_highbd_lpf_horizontal_edge_8_sse2(s, p, _blimit, _limit, _thresh, bd);
+  vpx_highbd_lpf_horizontal_edge_8_sse2(s + 8, p, _blimit, _limit, _thresh, bd);
 }
 
 void vpx_highbd_lpf_horizontal_8_sse2(uint16_t *s, int p,
@@ -1171,8 +1154,8 @@
   highbd_transpose(src, p, dst, 8, 2);
 
   // Loop filtering
-  highbd_mb_lpf_horizontal_edge_w_sse2_8(t_dst + 8 * 8, 8, blimit, limit,
-                                         thresh, bd);
+  vpx_highbd_lpf_horizontal_edge_8_sse2(t_dst + 8 * 8, 8, blimit, limit,
+                                        thresh, bd);
   src[0] = t_dst;
   src[1] = t_dst + 8 * 8;
   dst[0] = s - 8;
@@ -1195,8 +1178,8 @@
   highbd_transpose8x16(s, s + 8 * p, p, t_dst + 8 * 16, 16);
 
   //  Loop filtering
-  highbd_mb_lpf_horizontal_edge_w_sse2_16(t_dst + 8 * 16, 16, blimit, limit,
-                                          thresh, bd);
+  vpx_highbd_lpf_horizontal_edge_16_sse2(t_dst + 8 * 16, 16, blimit, limit,
+                                         thresh, bd);
 
   //  Transpose back
   highbd_transpose8x16(t_dst, t_dst + 8 * 16, 16, s - 8, p);