ConvertToARGB: Allows rotation on ARGB input

unit_test/convert_test.cc

Index: unit_test/convert_test.cc
diff --git a/unit_test/convert_test.cc b/unit_test/convert_test.cc
index 50d2569b2e6411818d4a7de9fbced8aba481e125..1d42eb97984ec599fa106dadc5b744834bf7e481 100644
--- a/unit_test/convert_test.cc
+++ b/unit_test/convert_test.cc
@@ -1885,4 +1885,40 @@ TESTPLANARTOE(I422, 2, 1, UYVY, 2, 4, ARGB, 4)
 TESTQPLANARTOE(I420Alpha, 2, 2, ARGB, 1, 4, ABGR, 4)
 TESTQPLANARTOE(I420Alpha, 2, 2, ABGR, 1, 4, ARGB, 4)
 
+TEST_F(LibYUVConvertTest, RotateWithARGBSource) {
+  // 2x2 frames
+  uint32_t src[4];
+  uint32_t dst[4];
+  // some random input
+  src[0] = 0x11000000;
+  src[1] = 0x00450000;
+  src[2] = 0x00009f00;
+  src[3] = 0x000000ff;
+  // zeros on destination
+  dst[0] = 0x00000000;
+  dst[1] = 0x00000000;
+  dst[2] = 0x00000000;
+  dst[3] = 0x00000000;
+
+  int r = ConvertToARGB(
+      reinterpret_cast<uint8_t*>(src),
+      16, // input size
+      reinterpret_cast<uint8_t*>(dst),
+      8, // destination stride
+      0, // crop_x
+      0, // crop_y
+      2, // width
+      2, // height
+      2, // crop width
+      2, // crop height
+      kRotate90, FOURCC_ARGB);
+
+  EXPECT_EQ(r, 0);
+  // 90 degrees rotation, no conversion
+  EXPECT_EQ(dst[0], src[2]);
+  EXPECT_EQ(dst[1], src[0]);
+  EXPECT_EQ(dst[2], src[3]);
+  EXPECT_EQ(dst[3], src[1]);
+}
+
 }  // namespace libyuv