ref: 284861b3bcb9f977cc5d47b9eaf0d77b73375d9a
dir: /codec/processing/src/imagerotate/imagerotatefuncs.cpp/
/*! * \copy * Copyright (c) 2011-2013, Cisco Systems * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * image_rotate.c * * Created on 11-2-21. * */ #include "imagerotate.h" WELSVP_NAMESPACE_BEGIN void ImageRotate90D_c (uint8_t* pSrc, uint32_t uiBytesPerPixel, uint32_t iWidth, uint32_t iHeight, uint8_t* pDst) { for (uint32_t j = 0; j < iHeight; j++) { for (uint32_t i = 0; i < iWidth; i++) { for (uint32_t n = 0; n < uiBytesPerPixel; n++) pDst[ (i * iHeight + iHeight - 1 - j)*uiBytesPerPixel + n] = pSrc[ (iWidth * j + i) * uiBytesPerPixel + n]; } } } void ImageRotate180D_c (uint8_t* pSrc, uint32_t uiBytesPerPixel, uint32_t iWidth, uint32_t iHeight, uint8_t* pDst) { for (uint32_t j = 0; j < iHeight; j++) { for (uint32_t i = 0; i < iWidth; i++) { for (uint32_t n = 0; n < uiBytesPerPixel; n++) pDst[ ((iHeight - 1 - j)*iWidth + iWidth - 1 - i)*uiBytesPerPixel + n] = pSrc[ (iWidth * j + i) * uiBytesPerPixel + n]; } } } void ImageRotate270D_c (uint8_t* pSrc, uint32_t uiBytesPerPixel, uint32_t iWidth, uint32_t iHeight, uint8_t* pDst) { for (uint32_t j = 0; j < iWidth; j++) { for (uint32_t i = 0; i < iHeight; i++) { for (uint32_t n = 0; n < uiBytesPerPixel; n++) pDst[ ((iWidth - 1 - j)*iHeight + i)*uiBytesPerPixel + n] = pSrc[ (iWidth * i + j) * uiBytesPerPixel + n]; } } } WELSVP_NAMESPACE_END