refactor ARGBToI422 using ARGBToI420 internally

source/row_common.cc

 /*
  *  Copyright 2011 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 415 matching lines @@
     uint8 ag = AVGB(src_rgb0[G], src_rgb1[G]);                                 \
     uint8 ar = AVGB(src_rgb0[R], src_rgb1[R]);                                 \
     dst_u[0] = RGBToUJ(ar, ag, ab);                                            \
     dst_v[0] = RGBToVJ(ar, ag, ab);                                            \
   }                                                                            \
 }
 
 MAKEROWYJ(ARGB, 2, 1, 0, 4)
 #undef MAKEROWYJ
 
-void ARGBToUVJ422Row_C(const uint8* src_argb,
-                       uint8* dst_u, uint8* dst_v, int width) {
-  int x;
-  for (x = 0; x < width - 1; x += 2) {
-    uint8 ab = (src_argb[0] + src_argb[4]) >> 1;
-    uint8 ag = (src_argb[1] + src_argb[5]) >> 1;
-    uint8 ar = (src_argb[2] + src_argb[6]) >> 1;
-    dst_u[0] = RGBToUJ(ar, ag, ab);
-    dst_v[0] = RGBToVJ(ar, ag, ab);
-    src_argb += 8;
-    dst_u += 1;
-    dst_v += 1;
-  }
-  if (width & 1) {
-    uint8 ab = src_argb[0];
-    uint8 ag = src_argb[1];
-    uint8 ar = src_argb[2];
-    dst_u[0] = RGBToUJ(ar, ag, ab);
-    dst_v[0] = RGBToVJ(ar, ag, ab);
-  }
-}
-
 void RGB565ToYRow_C(const uint8* src_rgb565, uint8* dst_y, int width) {
   int x;
   for (x = 0; x < width; ++x) {
     uint8 b = src_rgb565[0] & 0x1f;
     uint8 g = (src_rgb565[0] >> 5) | ((src_rgb565[1] & 0x07) << 3);
     uint8 r = src_rgb565[1] >> 3;
     b = (b << 3) | (b >> 2);
     g = (g << 2) | (g >> 4);
     r = (r << 3) | (r >> 2);
     dst_y[0] = RGBToY(r, g, b);
@@ skipping 183 matching lines @@
     uint8 ag = src_argb[1];
     uint8 ar = src_argb[2];
     dst_u[0] = RGBToU(ar, ag, ab);
     dst_v[0] = RGBToV(ar, ag, ab);
     src_argb += 4;
     dst_u += 1;
     dst_v += 1;
   }
 }
 
-void ARGBToUV422Row_C(const uint8* src_argb,
-                      uint8* dst_u, uint8* dst_v, int width) {
-  int x;
-  for (x = 0; x < width - 1; x += 2) {
-    uint8 ab = (src_argb[0] + src_argb[4]) >> 1;
-    uint8 ag = (src_argb[1] + src_argb[5]) >> 1;
-    uint8 ar = (src_argb[2] + src_argb[6]) >> 1;
-    dst_u[0] = RGBToU(ar, ag, ab);
-    dst_v[0] = RGBToV(ar, ag, ab);
-    src_argb += 8;
-    dst_u += 1;
-    dst_v += 1;
-  }
-  if (width & 1) {
-    uint8 ab = src_argb[0];
-    uint8 ag = src_argb[1];
-    uint8 ar = src_argb[2];
-    dst_u[0] = RGBToU(ar, ag, ab);
-    dst_v[0] = RGBToV(ar, ag, ab);
-  }
-}
-
 void ARGBToUV411Row_C(const uint8* src_argb,
                       uint8* dst_u, uint8* dst_v, int width) {
   int x;
   for (x = 0; x < width - 3; x += 4) {
     uint8 ab = (src_argb[0] + src_argb[4] + src_argb[8] + src_argb[12]) >> 2;
     uint8 ag = (src_argb[1] + src_argb[5] + src_argb[9] + src_argb[13]) >> 2;
     uint8 ar = (src_argb[2] + src_argb[6] + src_argb[10] + src_argb[14]) >> 2;
     dst_u[0] = RGBToU(ar, ag, ab);
     dst_v[0] = RGBToV(ar, ag, ab);
     src_argb += 16;
@@ skipping 1940 matching lines @@
     dst_rgb565 += twidth * 2;
     width -= twidth;
   }
 }
 #endif
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif