add unittest that compares ABGR to ARGB

TBR=harryjin@google.com
BUG=libyuv:515

Review URL: https://codereview.chromium.org/1423663007 .

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 1523
+Version: 1524
 License: BSD
 License File: LICENSE
 

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 1523
+#define LIBYUV_VERSION 1524
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

unit_test/convert_test.cc

@@ -1691,4 +1691,39 @@ TEST_F(LibYUVConvertTest, NAME) {                                              \
 TESTPTOB(TestYUY2ToNV12, YUY2ToI420, YUY2ToNV12)
 TESTPTOB(TestUYVYToNV12, UYVYToI420, UYVYToNV12)
 
+TEST_F(LibYUVConvertTest, TestI444ToABGRvsARGB) {
+  align_buffer_64(src_y, benchmark_width_ * benchmark_height_);
+  align_buffer_64(src_u, benchmark_width_ * benchmark_height_);
+  align_buffer_64(src_v, benchmark_width_ * benchmark_height_);
+  align_buffer_64(dst_argb, benchmark_width_ * benchmark_height_ * 4);
+  align_buffer_64(dst_abgr, benchmark_width_ * benchmark_height_ * 4);
+  MemRandomize(src_y, benchmark_width_ * benchmark_height_);
+  MemRandomize(src_u, benchmark_width_ * benchmark_height_);
+  MemRandomize(src_v, benchmark_width_ * benchmark_height_);
+  MemRandomize(dst_argb, benchmark_width_ * benchmark_height_ * 4);
+  MemRandomize(dst_abgr, benchmark_width_ * benchmark_height_ * 4);
+  libyuv::I444ToARGB(src_y, benchmark_width_,
+                     src_u, benchmark_width_,
+                     src_v, benchmark_width_,
+                     dst_argb, benchmark_width_ * 4,
+                     benchmark_width_, benchmark_height_);
+  libyuv::I444ToABGR(src_y, benchmark_width_,
+                     src_u, benchmark_width_,
+                     src_v, benchmark_width_,
+                     dst_abgr, benchmark_width_ * 4,
+                     benchmark_width_, benchmark_height_);
+  // swap in place.
+  libyuv::ABGRToARGB(dst_abgr, benchmark_width_ * 4,
+                     dst_abgr, benchmark_width_ * 4,
+                     benchmark_width_, benchmark_height_);
+  for (int i = 0; i < benchmark_width_ * benchmark_height_ * 4; ++i) {
+    EXPECT_EQ(dst_abgr[i], dst_argb[i]);
+  }
+  free_aligned_buffer_64(src_y);
+  free_aligned_buffer_64(src_u);
+  free_aligned_buffer_64(src_v);
+  free_aligned_buffer_64(dst_argb);
+  free_aligned_buffer_64(dst_abgr);
+}
+
 }  // namespace libyuv