blob: 03e51efcd9ef3077507e790e1ac3ac4ad095e569 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
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);
|
