Remove boundary checks in CLPF

Change-Id: Icc93783f47fe7fe3aac395aadcc8bbc307dae1fb
diff --git a/av1/common/clpf_simd.h b/av1/common/clpf_simd.h
index 6afab69..12152c1 100644
--- a/av1/common/clpf_simd.h
+++ b/av1/common/clpf_simd.h
@@ -17,70 +17,7 @@
 // Process blocks of width 8, two lines at a time, 8 bit.
 static void clpf_block8(const uint8_t *src, uint8_t *dst, int sstride,
                         int dstride, int x0, int y0, int sizey,
-                        BOUNDARY_TYPE bt, unsigned int strength,
-                        unsigned int dmp) {
-  const int bottom = bt & TILE_BOTTOM_BOUNDARY ? sizey - 2 : -1;
-  const int right = !(bt & TILE_RIGHT_BOUNDARY);
-  const int left = !(bt & TILE_LEFT_BOUNDARY);
-  const int top = bt & TILE_ABOVE_BOUNDARY ? 0 : -1;
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  c_shuff[]) = { 0x0504030201000000LL, 0x0d0c0b0a09080808LL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  d_shuff[]) = { 0x0605040302010000LL, 0x0e0d0c0b0a090808LL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  e_shuff[]) = { 0x0707060504030201LL, 0x0f0f0e0d0c0b0a09LL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  f_shuff[]) = { 0x0707070605040302LL, 0x0f0f0f0e0d0c0b0aLL };
-  int y;
-
-  dst += x0 + y0 * dstride;
-  src += x0 + y0 * sstride;
-
-  for (y = 0; y < sizey; y += 2) {
-    const v64 l1 = v64_load_aligned(src);
-    const v64 l2 = v64_load_aligned(src + sstride);
-    const v64 l3 = v64_load_aligned(src - (y != top) * sstride);
-    const v64 l4 = v64_load_aligned(src + ((y != bottom) + 1) * sstride);
-    v128 o = v128_from_v64(l1, l2);
-    const v128 a =
-        v128_from_v64(v64_load_aligned(src - 2 * (y != top) * sstride), l3);
-    const v128 b = v128_from_v64(l3, l1);
-    const v128 g = v128_from_v64(l2, l4);
-    const v128 h = v128_from_v64(
-        l4, v64_load_aligned(src + (2 * (y != bottom) + 1) * sstride));
-    v128 c, d, e, f;
-
-    if (left) {
-      c = v128_from_v64(v64_load_unaligned(src - 2),
-                        v64_load_unaligned(src - 2 + sstride));
-      d = v128_from_v64(v64_load_unaligned(src - 1),
-                        v64_load_unaligned(src - 1 + sstride));
-    } else {  // Left clipping
-      c = v128_shuffle_8(o, v128_load_aligned(c_shuff));
-      d = v128_shuffle_8(o, v128_load_aligned(d_shuff));
-    }
-    if (right) {
-      e = v128_from_v64(v64_load_unaligned(src + 1),
-                        v64_load_unaligned(src + 1 + sstride));
-      f = v128_from_v64(v64_load_unaligned(src + 2),
-                        v64_load_unaligned(src + 2 + sstride));
-    } else {  // Right clipping
-      e = v128_shuffle_8(o, v128_load_aligned(e_shuff));
-      f = v128_shuffle_8(o, v128_load_aligned(f_shuff));
-    }
-
-    o = calc_delta(o, a, b, c, d, e, f, g, h, strength, dmp);
-    v64_store_aligned(dst, v128_high_v64(o));
-    v64_store_aligned(dst + dstride, v128_low_v64(o));
-    src += sstride * 2;
-    dst += dstride * 2;
-  }
-}
-
-// As above, but with no clipping tests
-static void clpf_block8_noclip(const uint8_t *src, uint8_t *dst, int sstride,
-                               int dstride, int x0, int y0, int sizey,
-                               unsigned int strength, unsigned int dmp) {
+                        unsigned int strength, unsigned int dmp) {
   int y;
 
   dst += x0 + y0 * dstride;
@@ -116,85 +53,7 @@
 // Process blocks of width 4, four lines at a time, 8 bit.
 static void clpf_block4(const uint8_t *src, uint8_t *dst, int sstride,
                         int dstride, int x0, int y0, int sizey,
-                        BOUNDARY_TYPE bt, unsigned int strength,
-                        unsigned int dmp) {
-  const int right = !(bt & TILE_RIGHT_BOUNDARY);
-  const int bottom = bt & TILE_BOTTOM_BOUNDARY ? sizey - 4 : -1;
-  const int left = !(bt & TILE_LEFT_BOUNDARY);
-  const int top = bt & TILE_ABOVE_BOUNDARY ? 0 : -1;
-
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  c_shuff[]) = { 0x0504040401000000LL, 0x0d0c0c0c09080808LL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  d_shuff[]) = { 0x0605040402010000LL, 0x0e0d0c0c0a090808LL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  e_shuff[]) = { 0x0707060503030201LL, 0x0f0f0e0d0b0b0a09LL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  f_shuff[]) = { 0x0707070603030302LL, 0x0f0f0f0e0b0b0b0aLL };
-  int y;
-
-  dst += x0 + y0 * dstride;
-  src += x0 + y0 * sstride;
-
-  for (y = 0; y < sizey; y += 4) {
-    const uint32_t l0 = u32_load_aligned(src - 2 * (y != top) * sstride);
-    const uint32_t l1 = u32_load_aligned(src - (y != top) * sstride);
-    const uint32_t l2 = u32_load_aligned(src);
-    const uint32_t l3 = u32_load_aligned(src + sstride);
-    const uint32_t l4 = u32_load_aligned(src + 2 * sstride);
-    const uint32_t l5 = u32_load_aligned(src + 3 * sstride);
-    const uint32_t l6 = u32_load_aligned(src + ((y != bottom) + 3) * sstride);
-    const uint32_t l7 =
-        u32_load_aligned(src + (2 * (y != bottom) + 3) * sstride);
-    v128 o = v128_from_32(l2, l3, l4, l5);
-    const v128 a = v128_from_32(l0, l1, l2, l3);
-    const v128 b = v128_from_32(l1, l2, l3, l4);
-    const v128 g = v128_from_32(l3, l4, l5, l6);
-    const v128 h = v128_from_32(l4, l5, l6, l7);
-    v128 c, d, e, f;
-
-    if (left) {
-      c = v128_from_32(u32_load_unaligned(src - 2),
-                       u32_load_unaligned(src + sstride - 2),
-                       u32_load_unaligned(src + 2 * sstride - 2),
-                       u32_load_unaligned(src + 3 * sstride - 2));
-      d = v128_from_32(u32_load_unaligned(src - 1),
-                       u32_load_unaligned(src + sstride - 1),
-                       u32_load_unaligned(src + 2 * sstride - 1),
-                       u32_load_unaligned(src + 3 * sstride - 1));
-    } else {  // Left clipping
-      c = v128_shuffle_8(o, v128_load_aligned(c_shuff));
-      d = v128_shuffle_8(o, v128_load_aligned(d_shuff));
-    }
-    if (right) {
-      e = v128_from_32(u32_load_unaligned(src + 1),
-                       u32_load_unaligned(src + sstride + 1),
-                       u32_load_unaligned(src + 2 * sstride + 1),
-                       u32_load_unaligned(src + 3 * sstride + 1));
-      f = v128_from_32(u32_load_unaligned(src + 2),
-                       u32_load_unaligned(src + sstride + 2),
-                       u32_load_unaligned(src + 2 * sstride + 2),
-                       u32_load_unaligned(src + 3 * sstride + 2));
-    } else {  // Right clipping
-      e = v128_shuffle_8(o, v128_load_aligned(e_shuff));
-      f = v128_shuffle_8(o, v128_load_aligned(f_shuff));
-    }
-
-    o = calc_delta(o, a, b, c, d, e, f, g, h, strength, dmp);
-    u32_store_aligned(dst, v128_low_u32(v128_shr_n_byte(o, 12)));
-    u32_store_aligned(dst + dstride, v128_low_u32(v128_shr_n_byte(o, 8)));
-    u32_store_aligned(dst + 2 * dstride, v128_low_u32(v128_shr_n_byte(o, 4)));
-    u32_store_aligned(dst + 3 * dstride, v128_low_u32(o));
-
-    dst += 4 * dstride;
-    src += 4 * sstride;
-  }
-}
-
-// As above, but with no clipping tests
-static void clpf_block4_noclip(const uint8_t *src, uint8_t *dst, int sstride,
-                               int dstride, int x0, int y0, int sizey,
-                               unsigned int strength, unsigned int dmp) {
+                        unsigned int strength, unsigned int dmp) {
   int y;
 
   dst += x0 + y0 * dstride;
@@ -246,20 +105,16 @@
 void SIMD_FUNC(aom_clpf_block)(const uint8_t *src, uint8_t *dst, int sstride,
                                int dstride, int x0, int y0, int sizex,
                                int sizey, unsigned int strength,
-                               BOUNDARY_TYPE bt, unsigned int dmp) {
+                               unsigned int dmp) {
   if ((sizex != 4 && sizex != 8) || ((sizey & 3) && sizex == 4)) {
     // Fallback to C for odd sizes:
     // * block widths not 4 or 8
     // * block heights not a multiple of 4 if the block width is 4
     aom_clpf_block_c(src, dst, sstride, dstride, x0, y0, sizex, sizey, strength,
-                     bt, dmp);
+                     dmp);
   } else {
-    if (bt)
-      (sizex == 4 ? clpf_block4 : clpf_block8)(src, dst, sstride, dstride, x0,
-                                               y0, sizey, bt, strength, dmp);
-    else
-      (sizex == 4 ? clpf_block4_noclip : clpf_block8_noclip)(
-          src, dst, sstride, dstride, x0, y0, sizey, strength, dmp);
+    (sizex == 4 ? clpf_block4 : clpf_block8)(src, dst, sstride, dstride, x0, y0,
+                                             sizey, strength, dmp);
   }
 }
 
@@ -324,69 +179,7 @@
 SIMD_INLINE void clpf_block_hbd4(const uint16_t *src, uint16_t *dst,
                                  int sstride, int dstride, int x0, int y0,
                                  int sizey, unsigned int strength,
-                                 BOUNDARY_TYPE bt, unsigned int dmp) {
-  const int right = !(bt & TILE_RIGHT_BOUNDARY);
-  const int bottom = bt & TILE_BOTTOM_BOUNDARY ? sizey - 2 : -1;
-  const int left = !(bt & TILE_LEFT_BOUNDARY);
-  const int top = bt & TILE_ABOVE_BOUNDARY ? 0 : -1;
-
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  c_shuff[]) = { 0x0302010001000100LL, 0x0b0a090809080908LL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  d_shuff[]) = { 0x0504030201000100LL, 0x0d0c0b0a09080908LL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  e_shuff[]) = { 0x0706070605040302LL, 0x0f0e0f0e0d0c0b0aLL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  f_shuff[]) = { 0x0706070607060504LL, 0x0f0e0f0e0f0e0d0cLL };
-  int y;
-
-  dst += x0 + y0 * dstride;
-  src += x0 + y0 * sstride;
-
-  for (y = 0; y < sizey; y += 2) {
-    const v64 l1 = v64_load_aligned(src);
-    const v64 l2 = v64_load_aligned(src + sstride);
-    const v64 l3 = v64_load_aligned(src - (y != top) * sstride);
-    const v64 l4 = v64_load_aligned(src + ((y != bottom) + 1) * sstride);
-    v128 o = v128_from_v64(l1, l2);
-    const v128 a =
-        v128_from_v64(v64_load_aligned(src - 2 * (y != top) * sstride), l3);
-    const v128 b = v128_from_v64(l3, l1);
-    const v128 g = v128_from_v64(l2, l4);
-    const v128 h = v128_from_v64(
-        l4, v64_load_aligned(src + (2 * (y != bottom) + 1) * sstride));
-    v128 c, d, e, f;
-
-    if (left) {
-      c = v128_from_v64(v64_load_unaligned(src - 2),
-                        v64_load_unaligned(src - 2 + sstride));
-      d = v128_from_v64(v64_load_unaligned(src - 1),
-                        v64_load_unaligned(src - 1 + sstride));
-    } else {  // Left clipping
-      c = v128_shuffle_8(o, v128_load_aligned(c_shuff));
-      d = v128_shuffle_8(o, v128_load_aligned(d_shuff));
-    }
-    if (right) {
-      e = v128_from_v64(v64_load_unaligned(src + 1),
-                        v64_load_unaligned(src + 1 + sstride));
-      f = v128_from_v64(v64_load_unaligned(src + 2),
-                        v64_load_unaligned(src + 2 + sstride));
-    } else {  // Right clipping
-      e = v128_shuffle_8(o, v128_load_aligned(e_shuff));
-      f = v128_shuffle_8(o, v128_load_aligned(f_shuff));
-    }
-    calc_delta_hbd4(o, a, b, c, d, e, f, g, h, dst, strength, dmp, dstride);
-    src += sstride * 2;
-    dst += dstride * 2;
-  }
-}
-
-// As above, but with no clipping tests
-SIMD_INLINE void clpf_block_hbd4_noclip(const uint16_t *src, uint16_t *dst,
-                                        int sstride, int dstride, int x0,
-                                        int y0, int sizey,
-                                        unsigned int strength,
-                                        unsigned int dmp) {
+                                 unsigned int dmp) {
   int y;
 
   dst += x0 + y0 * dstride;
@@ -420,62 +213,7 @@
 // The most simple case.  Start here if you need to understand the functions.
 SIMD_INLINE void clpf_block_hbd(const uint16_t *src, uint16_t *dst, int sstride,
                                 int dstride, int x0, int y0, int sizey,
-                                unsigned int strength, BOUNDARY_TYPE bt,
-                                unsigned int dmp) {
-  const int right = !(bt & TILE_RIGHT_BOUNDARY);
-  const int left = !(bt & TILE_LEFT_BOUNDARY);
-  const int ymin = -!(bt & TILE_ABOVE_BOUNDARY) * 2;
-  const int ymax = sizey + !(bt & TILE_BOTTOM_BOUNDARY) * 2 - 1;
-
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  c_shuff[]) = { 0x0302010001000100LL, 0x0b0a090807060504LL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  d_shuff[]) = { 0x0504030201000100LL, 0x0d0c0b0a09080706LL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  e_shuff[]) = { 0x0908070605040302LL, 0x0f0e0f0e0d0c0b0aLL };
-  DECLARE_ALIGNED(16, static const uint64_t,
-                  f_shuff[]) = { 0x0b0a090807060504LL, 0x0f0e0f0e0f0e0d0cLL };
-  int y;
-
-  dst += x0 + y0 * dstride;
-  src += x0 + y0 * sstride;
-
-  // Read 8 set of pixels at a time.  Clipping along upper and lower
-  // edges is handled by reading the upper or lower line twice.
-  // Clipping along the left and right edges is handled by shuffle
-  // instructions doing shift and pad.
-  for (y = 0; y < sizey; y++) {
-    const v128 o = v128_load_aligned(src + y * sstride);
-    const v128 a = v128_load_aligned(src + AOMMAX(ymin, y - 2) * sstride);
-    const v128 b = v128_load_aligned(src + AOMMAX(ymin, y - 1) * sstride);
-    const v128 g = v128_load_aligned(src + AOMMIN(ymax, y + 1) * sstride);
-    const v128 h = v128_load_aligned(src + AOMMIN(ymax, y + 2) * sstride);
-    v128 c, d, e, f;
-
-    if (left) {
-      c = v128_load_unaligned(src + y * sstride - 2);
-      d = v128_load_unaligned(src + y * sstride - 1);
-    } else {  // Left clipping
-      c = v128_shuffle_8(o, v128_load_aligned(c_shuff));
-      d = v128_shuffle_8(o, v128_load_aligned(d_shuff));
-    }
-    if (right) {
-      e = v128_load_unaligned(src + y * sstride + 1);
-      f = v128_load_unaligned(src + y * sstride + 2);
-    } else {  // Right clipping
-      e = v128_shuffle_8(o, v128_load_aligned(e_shuff));
-      f = v128_shuffle_8(o, v128_load_aligned(f_shuff));
-    }
-    calc_delta_hbd8(o, a, b, c, d, e, f, g, h, dst, strength, dmp);
-    dst += dstride;
-  }
-}
-
-// As above, but with no clipping tests
-SIMD_INLINE void clpf_block_hbd_noclip(const uint16_t *src, uint16_t *dst,
-                                       int sstride, int dstride, int x0, int y0,
-                                       int sizey, unsigned int strength,
-                                       unsigned int dmp) {
+                                unsigned int strength, unsigned int dmp) {
   int y;
 
   dst += x0 + y0 * dstride;
@@ -501,20 +239,16 @@
 void SIMD_FUNC(aom_clpf_block_hbd)(const uint16_t *src, uint16_t *dst,
                                    int sstride, int dstride, int x0, int y0,
                                    int sizex, int sizey, unsigned int strength,
-                                   BOUNDARY_TYPE bt, unsigned int dmp) {
+                                   unsigned int dmp) {
   if ((sizex != 4 && sizex != 8) || ((sizey & 1) && sizex == 4)) {
     // Fallback to C for odd sizes:
     // * block width not 4 or 8
     // * block heights not a multiple of 2 if the block width is 4
     aom_clpf_block_hbd_c(src, dst, sstride, dstride, x0, y0, sizex, sizey,
-                         strength, bt, dmp);
+                         strength, dmp);
   } else {
-    if (bt)
-      (sizex == 4 ? clpf_block_hbd4 : clpf_block_hbd)(
-          src, dst, sstride, dstride, x0, y0, sizey, strength, bt, dmp);
-    else
-      (sizex == 4 ? clpf_block_hbd4_noclip : clpf_block_hbd_noclip)(
-          src, dst, sstride, dstride, x0, y0, sizey, strength, dmp);
+    (sizex == 4 ? clpf_block_hbd4 : clpf_block_hbd)(
+        src, dst, sstride, dstride, x0, y0, sizey, strength, dmp);
   }
 }
 #endif