Add MSA optimized ARGB Attenuate/RGB565/Shuffle/Shader/Gray/Sepia row functions

source/convert_from_argb.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 959 matching lines @@
   }
 #endif
 #if defined(HAS_ARGBTORGB565DITHERROW_NEON)
   if (TestCpuFlag(kCpuHasNEON)) {
     ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_Any_NEON;
     if (IS_ALIGNED(width, 8)) {
       ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_NEON;
     }
   }
 #endif
+#if defined(HAS_ARGBTORGB565DITHERROW_MSA)
+  if (TestCpuFlag(kCpuHasMSA)) {
+    ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_Any_MSA;
+    if (IS_ALIGNED(width, 8)) {
+      ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_MSA;
+    }
+  }
+#endif
+
   for (y = 0; y < height; ++y) {
     ARGBToRGB565DitherRow(src_argb, dst_rgb565,
                           *(uint32*)(dither4x4 + ((y & 3) << 2)),
                           width); /* NOLINT */
     src_argb += src_stride_argb;
     dst_rgb565 += dst_stride_rgb565;
   }
   return 0;
 }
 
@@ skipping 407 matching lines @@
     src_argb += src_stride_argb;
     dst_yj += dst_stride_yj;
   }
   return 0;
 }
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif