add avx2 wrappers for functions that can call I422ToARGBRow_AVX2

R=harryjin@google.com
BUG=libyuv:557

Review URL: https://codereview.chromium.org/1687713002 .

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 1574
+Version: 1575
 License: BSD
 License File: LICENSE
 

include/libyuv/row.h

@@ -225,6 +225,9 @@ extern "C" {
 #define HAS_YUY2TOUV422ROW_AVX2
 #define HAS_YUY2TOUVROW_AVX2
 #define HAS_YUY2TOYROW_AVX2
+#define HAS_I422TOARGB1555ROW_AVX2
+#define HAS_I422TOARGB4444ROW_AVX2
+#define HAS_I422TORGB565ROW_AVX2
 
 // Effects:
 #define HAS_ARGBADDROW_AVX2
@@ -245,9 +248,6 @@ extern "C" {
 #define HAS_ARGBTOARGB4444ROW_AVX2
 #define HAS_ARGBTORGB565ROW_AVX2
 #define HAS_I411TOARGBROW_AVX2
-#define HAS_I422TOARGB1555ROW_AVX2
-#define HAS_I422TOARGB4444ROW_AVX2
-#define HAS_I422TORGB565ROW_AVX2
 #define HAS_J400TOARGBROW_AVX2
 #define HAS_NV12TORGB565ROW_AVX2
 #define HAS_RGB565TOARGBROW_AVX2

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 1574
+#define LIBYUV_VERSION 1575
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

source/row_common.cc

@@ -2495,7 +2495,11 @@ void I422ToRGB565Row_AVX2(const uint8* src_y,
   while (width > 0) {
     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
     I422ToARGBRow_AVX2(src_y, src_u, src_v, row, yuvconstants, twidth);
+#if defined(HAS_ARGBTORGB565ROW_AVX2)
     ARGBToRGB565Row_AVX2(row, dst_rgb565, twidth);
+#else
+    ARGBToRGB565Row_SSE2(row, dst_rgb565, twidth);
+#endif
     src_y += twidth;
     src_u += twidth / 2;
     src_v += twidth / 2;
@@ -2517,7 +2521,11 @@ void I422ToARGB1555Row_AVX2(const uint8* src_y,
   while (width > 0) {
     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
     I422ToARGBRow_AVX2(src_y, src_u, src_v, row, yuvconstants, twidth);
+#if defined(HAS_ARGBTOARGB1555ROW_AVX2)
     ARGBToARGB1555Row_AVX2(row, dst_argb1555, twidth);
+#else
+    ARGBToARGB1555Row_SSE2(row, dst_argb1555, twidth);
+#endif
     src_y += twidth;
     src_u += twidth / 2;
     src_v += twidth / 2;
@@ -2539,7 +2547,11 @@ void I422ToARGB4444Row_AVX2(const uint8* src_y,
   while (width > 0) {
     int twidth = width > MAXTWIDTH ? MAXTWIDTH : width;
     I422ToARGBRow_AVX2(src_y, src_u, src_v, row, yuvconstants, twidth);
+#if defined(HAS_ARGBTOARGB4444ROW_AVX2)
     ARGBToARGB4444Row_AVX2(row, dst_argb4444, twidth);
+#else
+    ARGBToARGB4444Row_SSE2(row, dst_argb4444, twidth);
+#endif
     src_y += twidth;
     src_u += twidth / 2;
     src_v += twidth / 2;