ref: e87cf9e2775e4212ff25cea4676e1205b6eb07e7
dir: /codec/decoder/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
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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