ref: 1b11d831ad145a2a5aad9cf7f4182d83e81d4d42
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