Add MIPS SIMD Arch (MSA) optimized MirrorRow function

include/libyuv/row.h

 /*
  *  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 344 matching lines @@
 #define HAS_SOBELROW_NEON
 #define HAS_SOBELTOPLANEROW_NEON
 #define HAS_SOBELXROW_NEON
 #define HAS_SOBELXYROW_NEON
 #define HAS_SOBELYROW_NEON
 #endif
 
 // The following are available on Mips platforms:
 #if !defined(LIBYUV_DISABLE_MIPS) && defined(__mips__) && \
     (_MIPS_SIM == _MIPS_SIM_ABI32) && (__mips_isa_rev < 6)
+#if defined(__mips_dsp) && (__mips_dsp_rev >= 2)
 #define HAS_COPYROW_MIPS
-#if defined(__mips_dsp) && (__mips_dsp_rev >= 2)
 #define HAS_I422TOARGBROW_DSPR2
 #define HAS_INTERPOLATEROW_DSPR2
 #define HAS_MIRRORROW_DSPR2
 #define HAS_MIRRORUVROW_DSPR2
 #define HAS_SPLITUVROW_DSPR2
 #endif
 #endif
 
+#if !defined(LIBYUV_DISABLE_MSA) && defined(__mips__) && \
+         defined(__mips_msa)

[fbarchard1, 2016/09/14 01:48:04]

indent should be 4 for line continuations.
you could probably remove the  && defined(__mips__) since it is implied by 
defined(__mips_msa)

[manojkumar.bhosale, 2016/09/14 12:45:29]

Done.

+#define HAS_MIRRORROW_MSA
+#endif
+
 #if defined(_MSC_VER) && !defined(__CLR_VER) && !defined(__clang__)
 #if defined(VISUALC_HAS_AVX2)
 #define SIMD_ALIGNED(var) __declspec(align(32)) var
 #else
 #define SIMD_ALIGNED(var) __declspec(align(16)) var
 #endif
 typedef __declspec(align(16)) int16 vec16[8];
 typedef __declspec(align(16)) int32 vec32[4];
 typedef __declspec(align(16)) int8 vec8[16];
 typedef __declspec(align(16)) uint16 uvec16[8];
@@ skipping 417 matching lines @@
 
 void ARGBToUV444Row_C(const uint8* src_argb,
                       uint8* dst_u, uint8* dst_v, int width);
 void ARGBToUV411Row_C(const uint8* src_argb,
                       uint8* dst_u, uint8* dst_v, int width);
 
 void MirrorRow_AVX2(const uint8* src, uint8* dst, int width);
 void MirrorRow_SSSE3(const uint8* src, uint8* dst, int width);
 void MirrorRow_NEON(const uint8* src, uint8* dst, int width);
 void MirrorRow_DSPR2(const uint8* src, uint8* dst, int width);
+void MirrorRow_MSA(const uint8* src, uint8* dst, int width);
 void MirrorRow_C(const uint8* src, uint8* dst, int width);
 void MirrorRow_Any_AVX2(const uint8* src, uint8* dst, int width);
 void MirrorRow_Any_SSSE3(const uint8* src, uint8* dst, int width);
 void MirrorRow_Any_SSE2(const uint8* src, uint8* dst, int width);
 void MirrorRow_Any_NEON(const uint8* src, uint8* dst, int width);
+void MirrorRow_Any_MSA(const uint8* src, uint8* dst, int width);
 
 void MirrorUVRow_SSSE3(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
                        int width);
 void MirrorUVRow_NEON(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
                       int width);
 void MirrorUVRow_DSPR2(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
                        int width);
 void MirrorUVRow_C(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int width);
 
 void ARGBMirrorRow_AVX2(const uint8* src, uint8* dst, int width);
@@ skipping 1108 matching lines @@
 void ARGBLumaColorTableRow_SSSE3(const uint8* src_argb, uint8* dst_argb,
                                  int width,
                                  const uint8* luma, uint32 lumacoeff);
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif
 
 #endif  // INCLUDE_LIBYUV_ROW_H_  NOLINT