YUY2ToI422_Any_Neon clean up to not require 16 pixels

source/row_any.cc

 /*
  *  Copyright 2012 The LibYuv Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS. All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 696 matching lines @@
 #define ANY12(NAMEANY, ANY_SIMD, UVSHIFT, BPP, DUVSHIFT, MASK)                 \
     void NAMEANY(const uint8* src_ptr, uint8* dst_u, uint8* dst_v, int width) {\
       SIMD_ALIGNED(uint8 temp[128 * 3]);                                       \
       memset(temp, 0, 128);  /* for msan */                                    \
       int r = width & MASK;                                                    \
       int n = width & ~MASK;                                                   \
       if (n > 0) {                                                             \
         ANY_SIMD(src_ptr, dst_u, dst_v, n);                                    \
       }                                                                        \
       memcpy(temp, src_ptr  + (n >> UVSHIFT) * BPP, SS(r, UVSHIFT) * BPP);     \
-      /* repeat last 4 bytes for 422 subsampler */                             \
-      if ((width & 1) && BPP == 4 && DUVSHIFT == 1) {                          \
-        memcpy(temp + SS(r, UVSHIFT) * BPP,                                    \
-               temp + SS(r, UVSHIFT) * BPP - BPP, BPP);                        \
-      }                                                                        \
       /* repeat last 4 - 12 bytes for 411 subsampler */                        \
       if (((width & 3) == 1) && BPP == 4 && DUVSHIFT == 2) {                   \
         memcpy(temp + SS(r, UVSHIFT) * BPP,                                    \
                temp + SS(r, UVSHIFT) * BPP - BPP, BPP);                        \
         memcpy(temp + SS(r, UVSHIFT) * BPP + BPP,                              \
                temp + SS(r, UVSHIFT) * BPP - BPP, BPP * 2);                    \
       }                                                                        \
       if (((width & 3) == 2) && BPP == 4 && DUVSHIFT == 2) {                   \
         memcpy(temp + SS(r, UVSHIFT) * BPP,                                    \
                temp + SS(r, UVSHIFT) * BPP - BPP * 2, BPP * 2);                \
@@ skipping 120 matching lines @@
 #endif
 #ifdef HAS_UYVYTOUVROW_NEON
 ANY12S(UYVYToUVRow_Any_NEON, UYVYToUVRow_NEON, 1, 4, 15)
 #endif
 #undef ANY12S
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif