1 /*!
2 * \copy
3 * Copyright (c) 2011-2013, Cisco Systems
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 *
31 * image_rotate.c
32 *
33 * Created on 11-2-21.
34 *
35 */
36
37 #include "imagerotate.h"
38
39 WELSVP_NAMESPACE_BEGIN
40
ImageRotate90D_c(uint8_t * pSrc,uint32_t uiBytesPerPixel,uint32_t iWidth,uint32_t iHeight,uint8_t * pDst)41 void ImageRotate90D_c (uint8_t* pSrc, uint32_t uiBytesPerPixel, uint32_t iWidth, uint32_t iHeight, uint8_t* pDst) {
42 for (uint32_t j = 0; j < iHeight; j++) {
43 for (uint32_t i = 0; i < iWidth; i++) {
44 for (uint32_t n = 0; n < uiBytesPerPixel; n++)
45 pDst[ (i * iHeight + iHeight - 1 - j)*uiBytesPerPixel + n] = pSrc[ (iWidth * j + i) * uiBytesPerPixel + n];
46 }
47 }
48 }
ImageRotate180D_c(uint8_t * pSrc,uint32_t uiBytesPerPixel,uint32_t iWidth,uint32_t iHeight,uint8_t * pDst)49 void ImageRotate180D_c (uint8_t* pSrc, uint32_t uiBytesPerPixel, uint32_t iWidth, uint32_t iHeight, uint8_t* pDst) {
50 for (uint32_t j = 0; j < iHeight; j++) {
51 for (uint32_t i = 0; i < iWidth; i++) {
52 for (uint32_t n = 0; n < uiBytesPerPixel; n++)
53 pDst[ ((iHeight - 1 - j)*iWidth + iWidth - 1 - i)*uiBytesPerPixel + n] = pSrc[ (iWidth * j + i) * uiBytesPerPixel + n];
54 }
55 }
56 }
ImageRotate270D_c(uint8_t * pSrc,uint32_t uiBytesPerPixel,uint32_t iWidth,uint32_t iHeight,uint8_t * pDst)57 void ImageRotate270D_c (uint8_t* pSrc, uint32_t uiBytesPerPixel, uint32_t iWidth, uint32_t iHeight, uint8_t* pDst) {
58 for (uint32_t j = 0; j < iWidth; j++) {
59 for (uint32_t i = 0; i < iHeight; i++) {
60 for (uint32_t n = 0; n < uiBytesPerPixel; n++)
61 pDst[ ((iWidth - 1 - j)*iHeight + i)*uiBytesPerPixel + n] = pSrc[ (iWidth * i + j) * uiBytesPerPixel + n];
62 }
63 }
64 }
65 WELSVP_NAMESPACE_END
66