/work/openh264/codec/processing/src/imagerotate/imagerotatefuncs.cpp
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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 | | |
41 | 0 | void ImageRotate90D_c (uint8_t* pSrc, uint32_t uiBytesPerPixel, uint32_t iWidth, uint32_t iHeight, uint8_t* pDst) { |
42 | 0 | for (uint32_t j = 0; j < iHeight; j++) { |
43 | 0 | for (uint32_t i = 0; i < iWidth; i++) { |
44 | 0 | for (uint32_t n = 0; n < uiBytesPerPixel; n++) |
45 | 0 | pDst[ (i * iHeight + iHeight - 1 - j)*uiBytesPerPixel + n] = pSrc[ (iWidth * j + i) * uiBytesPerPixel + n]; |
46 | 0 | } |
47 | 0 | } |
48 | 0 | } |
49 | 0 | void ImageRotate180D_c (uint8_t* pSrc, uint32_t uiBytesPerPixel, uint32_t iWidth, uint32_t iHeight, uint8_t* pDst) { |
50 | 0 | for (uint32_t j = 0; j < iHeight; j++) { |
51 | 0 | for (uint32_t i = 0; i < iWidth; i++) { |
52 | 0 | for (uint32_t n = 0; n < uiBytesPerPixel; n++) |
53 | 0 | pDst[ ((iHeight - 1 - j)*iWidth + iWidth - 1 - i)*uiBytesPerPixel + n] = pSrc[ (iWidth * j + i) * uiBytesPerPixel + n]; |
54 | 0 | } |
55 | 0 | } |
56 | 0 | } |
57 | 0 | void ImageRotate270D_c (uint8_t* pSrc, uint32_t uiBytesPerPixel, uint32_t iWidth, uint32_t iHeight, uint8_t* pDst) { |
58 | 0 | for (uint32_t j = 0; j < iWidth; j++) { |
59 | 0 | for (uint32_t i = 0; i < iHeight; i++) { |
60 | 0 | for (uint32_t n = 0; n < uiBytesPerPixel; n++) |
61 | 0 | pDst[ ((iWidth - 1 - j)*iHeight + i)*uiBytesPerPixel + n] = pSrc[ (iWidth * i + j) * uiBytesPerPixel + n]; |
62 | 0 | } |
63 | 0 | } |
64 | 0 | } |
65 | | WELSVP_NAMESPACE_END |