shithub: openh264

ref: 3747f562492ea301b84e3eae4fa8cae765d95ccb
dir: /processing/src/imagerotate/imagerotate.cpp/

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/*!
 * \copy
 *     Copyright (c)  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.
 *
 */

#include "imagerotate.h"
#include "../common/cpu.h"

WELSVP_NAMESPACE_BEGIN

///////////////////////////////////////////////////////////////////////////////////////////////////////////////

CImageRotating::CImageRotating(int32_t iCpuFlag)
{
	m_iCPUFlag = iCpuFlag;
	m_eMethod   = METHOD_IMAGE_ROTATE;
	WelsMemset(&m_pfRotateImage, 0, sizeof(m_pfRotateImage));
	InitImageRotateFuncs(m_pfRotateImage, m_iCPUFlag);
}

CImageRotating::~CImageRotating()
{	
}

void CImageRotating::InitImageRotateFuncs(SImageRotateFuncs &sImageRotateFuncs, int32_t iCpuFlag)
{
	sImageRotateFuncs.pfImageRotate90D = ImageRotate90D_c;
	sImageRotateFuncs.pfImageRotate180D = ImageRotate180D_c;
	sImageRotateFuncs.pfImageRotate270D = ImageRotate270D_c;
}
EResult CImageRotating::ProcessImageRotate(int32_t iType, uint8_t *pSrc, uint32_t uiBytesPerPixel, uint32_t iWidth, uint32_t iHeight, uint8_t *pDst)
{
	if (iType == 90)
	{
		m_pfRotateImage.pfImageRotate90D(pSrc, uiBytesPerPixel, iWidth, iHeight, pDst);
	}
	else if (iType == 180)
	{
		m_pfRotateImage.pfImageRotate180D(pSrc, uiBytesPerPixel, iWidth, iHeight, pDst);
	}
	else if (iType == 270)
	{
		m_pfRotateImage.pfImageRotate270D(pSrc, uiBytesPerPixel, iWidth, iHeight, pDst);
	}
	else
	{	
		return RET_NOTSUPPORTED;
	}
	return RET_SUCCESS;
}

EResult CImageRotating::Process(int32_t iType, SPixMap *pSrc, SPixMap *pDst)
{
	EResult eReturn = RET_INVALIDPARAM;

	if ((pSrc->eFormat == VIDEO_FORMAT_RGBA) ||
		(pSrc->eFormat == VIDEO_FORMAT_BGRA) ||
		(pSrc->eFormat == VIDEO_FORMAT_ABGR) ||
		(pSrc->eFormat == VIDEO_FORMAT_ARGB))
	{
		eReturn = ProcessImageRotate(iType, (uint8_t *)pSrc->pPixel[0], pSrc->iSizeInBits*8, pSrc->sRect.iRectWidth, pSrc->sRect.iRectHeight, (uint8_t *)pDst->pPixel[0]);
	}
	else if (pSrc->eFormat == VIDEO_FORMAT_I420)
	{
		ProcessImageRotate(iType, (uint8_t *)pSrc->pPixel[0], pSrc->iSizeInBits*8, pSrc->sRect.iRectWidth, pSrc->sRect.iRectHeight, (uint8_t *)pDst->pPixel[0]);
		ProcessImageRotate(iType, (uint8_t *)pSrc->pPixel[1], pSrc->iSizeInBits*8, (pSrc->sRect.iRectWidth >> 1), (pSrc->sRect.iRectHeight >> 1), (uint8_t *)pDst->pPixel[1]);
		eReturn = ProcessImageRotate(iType, (uint8_t *)pSrc->pPixel[2], pSrc->iSizeInBits*8, (pSrc->sRect.iRectWidth >> 1), (pSrc->sRect.iRectHeight >> 1), (uint8_t *)pDst->pPixel[2]);
	}
	else
	{
		eReturn = RET_NOTSUPPORTED;
	}

	return eReturn;
}


WELSVP_NAMESPACE_END