Add test for RotatePlaneByPixels.

This is a follow-up patch for https://codereview.chromium.org/11860002/

BUG=161417
Review URL: https://codereview.chromium.org/12207190

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@183257 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 1 insertions, 98 deletions

diff --git a/media/video/capture/android/video_capture_device_android.cc b/media/video/capture/android/video_capture_device_android.cc
index 06daab4..26b80a8 100644
--- a/media/video/capture/android/video_capture_device_android.cc
+++ b/media/video/capture/android/video_capture_device_android.cc
@@ -12,6 +12,7 @@
 #include "base/stringprintf.h"
 #include "jni/Camera_jni.h"
 #include "jni/VideoCapture_jni.h"
+#include "media/base/video_util.h"
 
 using base::android::AttachCurrentThread;
 using base::android::CheckException;
@@ -30,104 +31,6 @@ void ResetBufferI420(uint8* buffer, int width, int height) {
   memset(buffer, 128, y_size / 2);
 }
 
-// TODO(wjia): add test for this function.
-void RotatePlaneByPixels(
-    uint8* src,
-    uint8* dest,
-    int width,
-    int height,
-    int rotation,  // Clockwise.
-    bool flip_vert,
-    bool flip_horiz) {
-  // Consolidate cases. Only 0 and 90 are left.
-  if (rotation == 180 || rotation == 270) {
-    rotation -= 180;
-    flip_vert = !flip_vert;
-    flip_horiz = !flip_horiz;
-  }
-
-  int num_rows = height;
-  int num_cols = width;
-  int src_stride = width;
-  // During pixel copying, the corresponding incremental of dest pointer
-  // when src pointer moves to next row.
-  int dest_row_step = width;
-  // During pixel copying, the corresponding incremental of dest pointer
-  // when src pointer moves to next column.
-  int dest_col_step = 1;
-
-  if (rotation == 0) {
-    if (flip_horiz) {
-      // Use pixel copying.
-      dest_col_step = -1;
-      if (flip_vert) {
-        // Rotation 180.
-        dest_row_step = -width;
-        dest += height * width - 1;
-      } else {
-        dest += width - 1;
-      }
-    } else {
-      if (flip_vert) {
-        // Fast copy by rows.
-        dest += width * (height - 1);
-        for (int row = 0; row < height; ++row) {
-          memcpy(dest, src, width);
-          src += width;
-          dest -= width;
-        }
-      } else {
-        memcpy(dest, src, width * height);
-      }
-      return;
-    }
-  } else if (rotation == 90) {
-    int offset;
-    if (width > height) {
-      offset = (width - height) / 2;
-      src += offset;
-      num_rows = num_cols = height;
-    } else {
-      offset = (height - width) / 2;
-      src += width * offset;
-      num_rows = num_cols = width;
-    }
-
-    dest_col_step = (flip_vert ? -width : width);
-    dest_row_step = (flip_horiz ? 1 : -1);
-    if (flip_horiz) {
-      if (flip_vert) {
-        dest += (width > height ? width * (height - 1) + offset :
-                                  width * (height - offset - 1));
-      } else {
-        dest += (width > height ? offset : width * offset);
-      }
-    } else {
-      if (flip_vert) {
-        dest += (width > height ?  width * height - offset - 1 :
-                                   width * (height - offset) - 1);
-      } else {
-        dest += (width > height ? width - offset - 1 :
-                                  width * (offset + 1) - 1);
-      }
-    }
-  } else {
-    NOTREACHED();
-  }
-
-  // Copy pixels.
-  for (int row = 0; row < num_rows; ++row) {
-    uint8* src_ptr = src;
-    uint8* dest_ptr = dest;
-    for (int col = 0; col < num_cols; ++col) {
-      *dest_ptr = *src_ptr++;
-      dest_ptr += dest_col_step;
-    }
-    src += src_stride;
-    dest += dest_row_step;
-  }
-}
-
 int GetIntField(JNIEnv* env,
                 const JavaRef<jclass>& clazz,
                 const JavaRef<jobject>& instance,