1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/media/video/mxc/opl/vmirror_u16.c b/drivers/media/video/mxc/opl/vmirror_u16.c
new file mode 100644
index 000000000000..03e51efcd9ef
--- /dev/null
+++ b/drivers/media/video/mxc/opl/vmirror_u16.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2004-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/module.h>
+#include <linux/string.h>
+#include "opl.h"
+
+int opl_vmirror_u16(const u8 *src, int src_line_stride, int width, int height,
+		    u8 *dst, int dst_line_stride)
+{
+	const u8 *src_row_addr;
+	u8 *dst_row_addr;
+	int i;
+
+	if (!src || !dst)
+		return OPLERR_NULL_PTR;
+
+	if (width == 0 || height == 0 || src_line_stride == 0
+	    || dst_line_stride == 0)
+		return OPLERR_BAD_ARG;
+
+	src_row_addr = src;
+	dst_row_addr = dst + (height - 1) * dst_line_stride;
+
+	/* Loop over all rows */
+	for (i = 0; i < height; i++) {
+		/* memcpy each row */
+		memcpy(dst_row_addr, src_row_addr, BYTES_PER_PIXEL * width);
+		src_row_addr += src_line_stride;
+		dst_row_addr -= dst_line_stride;
+	}
+
+	return OPLERR_SUCCESS;
+}
+
+EXPORT_SYMBOL(opl_vmirror_u16);