Add a unittest for scaling from VGA to whatever.

BUG=208
TESTED=out\release\libyuv_unittest --gtest_filter=*ScaleFrom*
Review URL: https://webrtc-codereview.appspot.com/1250004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@620 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 619
+Version: 620
 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 619
+#define LIBYUV_VERSION 620
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

unit_test/scale_argb_test.cc

@@ -413,4 +413,31 @@ TEST_F(libyuvTest, ARGBScaleTo853x480_Bilinear) {
   EXPECT_LE(max_diff, 1);
 }
 
+
+TEST_F(libyuvTest, ARGBScaleFrom640x360_None) {
+  int src_width = 640;
+  int src_height = 360;
+  int dst_width = benchmark_width_;
+  int dst_height = benchmark_height_;
+
+  int max_diff = ARGBTestFilter(src_width, src_height,
+                                dst_width, dst_height,
+                                kFilterNone,
+                                benchmark_iterations_);
+  EXPECT_LE(max_diff, 2);
+}
+
+TEST_F(libyuvTest, ARGBScaleFrom640x360_Bilinear) {
+  int src_width = 640;
+  int src_height = 360;
+  int dst_width = benchmark_width_;
+  int dst_height = benchmark_height_;
+
+  int max_diff = ARGBTestFilter(src_width, src_height,
+                                dst_width, dst_height,
+                                kFilterBilinear,
+                                benchmark_iterations_);
+  EXPECT_LE(max_diff, 2);
+}
+
 }  // namespace libyuv

unit_test/scale_test.cc

@@ -551,4 +551,30 @@ TEST_F(libyuvTest, ScaleTo853x480_Box) {
   EXPECT_LE(max_diff, 1);
 }
 
+TEST_F(libyuvTest, ScaleFrom640x360_None) {
+  int src_width = 640;
+  int src_height = 360;
+  int dst_width = benchmark_width_;
+  int dst_height = benchmark_height_;
+
+  int max_diff = TestFilter(src_width, src_height,
+                            dst_width, dst_height,
+                            kFilterNone,
+                            benchmark_iterations_);
+  EXPECT_LE(max_diff, 2);
+}
+
+TEST_F(libyuvTest, ScaleFrom640x360_Bilinear) {
+  int src_width = 640;
+  int src_height = 360;
+  int dst_width = benchmark_width_;
+  int dst_height = benchmark_height_;
+
+  int max_diff = TestFilter(src_width, src_height,
+                            dst_width, dst_height,
+                            kFilterBilinear,
+                            benchmark_iterations_);
+  EXPECT_LE(max_diff, 2);
+}
+
 }  // namespace libyuv