ref: edba95536681d8c589ed6dccc1b88a8499a98d3b
dir: /codec/decoder/core/src/expand_pic.cpp/
/*!
* \copy
* Copyright (c) 2013, Cisco Systems
* All rights reserved.
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* modification, are permitted provided that the following conditions
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* * Redistributions in binary form must reproduce the above copyright
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* 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,
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* 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
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#include <string.h>
#include "typedefs.h"
#include "expand_pic.h"
#include "cpu_core.h"
namespace WelsDec {
// rewrite it (split into luma & chroma) that is helpful for mmx/sse2 optimization perform, 9/27/2009
static inline void_t ExpandPictureLuma_c( uint8_t *pDst, const int32_t kiStride, const int32_t kiPicWidth, const int32_t kiPicHeight )
{
uint8_t *pTmp = pDst;
uint8_t *pDstLastLine = pTmp + (kiPicHeight-1) * kiStride;
const int32_t kiPaddingLen = PADDING_LENGTH;
const uint8_t kuiTopLeft = pTmp[0];
const uint8_t kuiTopRight = pTmp[kiPicWidth-1];
const uint8_t kuiBottomLeft = pDstLastLine[0];
const uint8_t kuiBottomRight= pDstLastLine[kiPicWidth-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, kiPicWidth);
memcpy(pBottom, pDstLastLine, kiPicWidth);
// pad corners
memset(pTop-kiPaddingLen, kuiTopLeft, kiPaddingLen); //pTop left
memset(pTop+kiPicWidth, kuiTopRight, kiPaddingLen); //pTop right
memset(pBottom-kiPaddingLen, kuiBottomLeft, kiPaddingLen); //pBottom left
memset(pBottom+kiPicWidth, kuiBottomRight, kiPaddingLen); //pBottom right
++ i;
} while( i < kiPaddingLen );
// pad left and right
i = 0;
do {
memset(pTmp-kiPaddingLen, pTmp[0], kiPaddingLen);
memset(pTmp+kiPicWidth, pTmp[kiPicWidth-1], kiPaddingLen);
pTmp += kiStride;
++ i;
} while( i < kiPicHeight );
}
static inline void_t ExpandPictureChroma_c( uint8_t *pDst, const int32_t kiStride, const int32_t kiPicWidth, const int32_t kiPicHeight )
{
uint8_t *pTmp = pDst;
uint8_t *pDstLastLine = pTmp + (kiPicHeight-1) * kiStride;
const int32_t kiPaddingLen = (PADDING_LENGTH>>1);
const uint8_t kuiTopLeft = pTmp[0];
const uint8_t kuiTopRight = pTmp[kiPicWidth-1];
const uint8_t kuiBottomLeft = pDstLastLine[0];
const uint8_t kuiBottomRight= pDstLastLine[kiPicWidth-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, kiPicWidth);
memcpy(pBottom, pDstLastLine, kiPicWidth);
// pad corners
memset(pTop-kiPaddingLen, kuiTopLeft, kiPaddingLen); //pTop left
memset(pTop+kiPicWidth, kuiTopRight, kiPaddingLen); //pTop right
memset(pBottom-kiPaddingLen, kuiBottomLeft, kiPaddingLen); //pBottom left
memset(pBottom+kiPicWidth, kuiBottomRight, kiPaddingLen); //pBottom right
++ i;
} while( i < kiPaddingLen );
// pad left and right
i = 0;
do {
memset(pTmp-kiPaddingLen, pTmp[0], kiPaddingLen);
memset(pTmp+kiPicWidth, pTmp[kiPicWidth-1], kiPaddingLen);
pTmp += kiStride;
++ i;
} while( i < kiPicHeight );
}
void_t InitExpandPictureFunc( SExpandPicFunc *pExpandPicFunc, const uint32_t kuiCpuFlags )
{
pExpandPicFunc->pExpandLumaPicture = ExpandPictureLuma_c;
pExpandPicFunc->pExpandChromaPicture[0] = ExpandPictureChroma_c;
pExpandPicFunc->pExpandChromaPicture[1] = ExpandPictureChroma_c;
#if defined(X86_ASM)
if ( (kuiCpuFlags & WELS_CPU_SSE2) == WELS_CPU_SSE2 )
{
pExpandPicFunc->pExpandLumaPicture = ExpandPictureLuma_sse2;
pExpandPicFunc->pExpandChromaPicture[0] = ExpandPictureChromaUnalign_sse2;
pExpandPicFunc->pExpandChromaPicture[1] = ExpandPictureChromaAlign_sse2;
}
#endif//X86_ASM
}
void_t ExpandReferencingPicture(PPicture pPic, PExpandPictureFunc pExpLuma, PExpandPictureFunc pExpChroma[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 issues 7/27/2010
const bool_t kbChrAligned= /*(kiWidthUV >= 16) && */((kiWidthUV & 0x0F) == 0); // chroma planes: (16+kiWidthUV) & 15
pExpChroma[kbChrAligned](pPicCb, pPic->iLinesize[1], kiWidthUV, kiHeightUV);
pExpChroma[kbChrAligned](pPicCr, pPic->iLinesize[2], kiWidthUV, kiHeightUV);
}
else
{
// fix coding picture size as 16x16 issues 7/27/2010
ExpandPictureChroma_c(pPicCb, pPic->iLinesize[1], kiWidthUV, kiHeightUV);
ExpandPictureChroma_c(pPicCr, pPic->iLinesize[2], kiWidthUV, kiHeightUV);
}
}
} // namespace WelsDec