ref: 82a492262e7d426e844af64b8f8752b4d8617e9e
dir: /codec/encoder/core/src/expand_pic.cpp/
/*!
* \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.
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*/
#include <string.h>
#include "expand_pic.h"
#include "cpu_core.h"
#include "wels_func_ptr_def.h"
namespace WelsSVCEnc {
// rewrite it (split into luma & chroma) that is helpful for mmx/sse2 optimization perform, 9/27/2009
static inline void ExpandPictureLuma_c( uint8_t *pDst, const int32_t kiStride, const int32_t kiPicW, const int32_t kiPicH )
{
uint8_t *pTmp = pDst;
uint8_t *pDstLastLine = pTmp + (kiPicH-1) * kiStride;
const int32_t kiPaddingLen = PADDING_LENGTH;
const uint8_t kuiTL = pTmp[0];
const uint8_t kuiTR = pTmp[kiPicW-1];
const uint8_t kuiBL = pDstLastLine[0];
const uint8_t kuiBR = pDstLastLine[kiPicW-1];
int32_t i = 0;
do {
const int32_t kiStrides = (1+i) * kiStride;
uint8_t* pTop = pTmp - kiStrides;
uint8_t* pBottom = pDstLastLine + kiStrides;
// pad pTop and pBottom
memcpy(pTop, pTmp, kiPicW); // confirmed_safe_unsafe_usage
memcpy(pBottom, pDstLastLine, kiPicW); // confirmed_safe_unsafe_usage
// pad corners
memset(pTop-kiPaddingLen, kuiTL, kiPaddingLen); //pTop left
memset(pTop+kiPicW, kuiTR, kiPaddingLen); //pTop right
memset(pBottom-kiPaddingLen, kuiBL, kiPaddingLen); //pBottom left
memset(pBottom+kiPicW, kuiBR, kiPaddingLen); //pBottom right
++ i;
} while( i < kiPaddingLen );
// pad left and right
i = 0;
do {
memset(pTmp-kiPaddingLen, pTmp[0], kiPaddingLen);
memset(pTmp+kiPicW, pTmp[kiPicW-1], kiPaddingLen);
pTmp += kiStride;
++ i;
} while( i < kiPicH );
}
static inline void ExpandPictureChroma_c( uint8_t *pDst, const int32_t kiStride, const int32_t kiPicW, const int32_t kiPicH )
{
uint8_t *pTmp = pDst;
uint8_t *pDstLastLine = pTmp + (kiPicH-1) * kiStride;
const int32_t kiPaddingLen = (PADDING_LENGTH>>1);
const uint8_t kuiTL = pTmp[0];
const uint8_t kuiTR = pTmp[kiPicW-1];
const uint8_t kuiBL = pDstLastLine[0];
const uint8_t kuiBR = pDstLastLine[kiPicW-1];
int32_t i = 0;
do {
const int32_t kiStrides = (1+i) * kiStride;
uint8_t* pTop = pTmp - kiStrides;
uint8_t* pBottom = pDstLastLine + kiStrides;
// pad pTop and pBottom
memcpy(pTop, pTmp, kiPicW); // confirmed_safe_unsafe_usage
memcpy(pBottom, pDstLastLine, kiPicW); // confirmed_safe_unsafe_usage
// pad corners
memset(pTop-kiPaddingLen, kuiTL, kiPaddingLen); //pTop left
memset(pTop+kiPicW, kuiTR, kiPaddingLen); //pTop right
memset(pBottom-kiPaddingLen, kuiBL, kiPaddingLen); //pBottom left
memset(pBottom+kiPicW, kuiBR, kiPaddingLen); //pBottom right
++ i;
} while( i < kiPaddingLen );
// pad left and right
i = 0;
do {
memset(pTmp-kiPaddingLen, pTmp[0], kiPaddingLen);
memset(pTmp+kiPicW, pTmp[kiPicW-1], kiPaddingLen);
pTmp += kiStride;
++ i;
} while( i < kiPicH );
}
void InitExpandPictureFunc( void *pL, const uint32_t kuiCPUFlag )
{
SWelsFuncPtrList *pFuncList = (SWelsFuncPtrList *)pL;
pFuncList->pfExpandLumaPicture = ExpandPictureLuma_c;
pFuncList->pfExpandChromaPicture[0] = ExpandPictureChroma_c;
pFuncList->pfExpandChromaPicture[1] = ExpandPictureChroma_c;
#if defined(X86_ASM)
if ( (kuiCPUFlag & WELS_CPU_SSE2) == WELS_CPU_SSE2 )
{
pFuncList->pfExpandLumaPicture = ExpandPictureLuma_sse2;
pFuncList->pfExpandChromaPicture[0]= ExpandPictureChromaUnalign_sse2;
pFuncList->pfExpandChromaPicture[1]= ExpandPictureChromaAlign_sse2;
}
#endif//X86_ASM
}
void ExpandReferencingPicture( SPicture *pPic, PExpandPictureFunc pExpLuma, PExpandPictureFunc pExpChrom[2] )
{
/*local variable*/
uint8_t *pPicY = pPic->pData[0];
uint8_t *pPicCb = pPic->pData[1];
uint8_t *pPicCr = pPic->pData[2];
const int32_t kiWidthY = pPic->iWidthInPixel;
const int32_t kiHeightY = pPic->iHeightInPixel;
const int32_t kiWidthUV = kiWidthY >> 1;
const int32_t kiHeightUV = kiHeightY >> 1;
pExpLuma(pPicY, pPic->iLineSize[0], kiWidthY, kiHeightY);
if ( kiWidthUV >= 16 )
{
// fix coding picture size as 16x16
const bool_t kbChrAligned= /*(iWidthUV >= 16) && */((kiWidthUV & 0x0F) == 0); // chroma planes: (16+iWidthUV) & 15
pExpChrom[kbChrAligned](pPicCb, pPic->iLineSize[1], kiWidthUV, kiHeightUV);
pExpChrom[kbChrAligned](pPicCr, pPic->iLineSize[2], kiWidthUV, kiHeightUV);
}
else
{
// fix coding picture size as 16x16
ExpandPictureChroma_c(pPicCb, pPic->iLineSize[1], kiWidthUV, kiHeightUV);
ExpandPictureChroma_c(pPicCr, pPic->iLineSize[2], kiWidthUV, kiHeightUV);
}
}
}