Add MSA optimized I422ToARGBRow_MSA and I422ToRGBARow_MSA functions

source/convert_from.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 441 matching lines @@
 #endif
 #if defined(HAS_I422TORGBAROW_DSPR2)
   if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 4) &&
       IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
       IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
       IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) &&
       IS_ALIGNED(dst_rgba, 4) && IS_ALIGNED(dst_stride_rgba, 4)) {
     I422ToRGBARow = I422ToRGBARow_DSPR2;
   }
 #endif
+#if defined(HAS_I422TORGBAROW_MSA)
+  if (TestCpuFlag(kCpuHasMSA)) {
+    I422ToRGBARow = I422ToRGBARow_Any_MSA;
+    if (IS_ALIGNED(width, 8)) {
+      I422ToRGBARow = I422ToRGBARow_MSA;
+    }
+  }
+#endif
 
   for (y = 0; y < height; ++y) {
     I422ToRGBARow(src_y, src_u, src_v, dst_rgba, yuvconstants, width);
     dst_rgba += dst_stride_rgba;
     src_y += src_stride_y;
     if (y & 1) {
       src_u += src_stride_u;
       src_v += src_stride_v;
     }
   }
@@ skipping 369 matching lines @@
   }
 #endif
 #if defined(HAS_I422TOARGBROW_DSPR2)
   if (TestCpuFlag(kCpuHasDSPR2) && IS_ALIGNED(width, 4) &&
       IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) &&
       IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) &&
       IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2)) {
     I422ToARGBRow = I422ToARGBRow_DSPR2;
   }
 #endif
+#if defined(HAS_I422TOARGBROW_MSA)
+  if (TestCpuFlag(kCpuHasMSA)) {
+    I422ToARGBRow = I422ToARGBRow_Any_MSA;
+    if (IS_ALIGNED(width, 8)) {
+      I422ToARGBRow = I422ToARGBRow_MSA;
+    }
+  }
+#endif
 #if defined(HAS_ARGBTORGB565DITHERROW_SSE2)
   if (TestCpuFlag(kCpuHasSSE2)) {
     ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_Any_SSE2;
     if (IS_ALIGNED(width, 4)) {
       ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_SSE2;
     }
   }
 #endif
 #if defined(HAS_ARGBTORGB565DITHERROW_AVX2)
   if (TestCpuFlag(kCpuHasAVX2)) {
@@ skipping 234 matching lines @@
     default:
       return -1;  // unknown fourcc - return failure code.
   }
   return r;
 }
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif