ref: c96c8b05a8c2b85dedb015f2ca62f7745711f7dd
dir: /codec/common/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.
*
*/
#include <string.h>
#include "expand_pic.h"
#include "cpu_core.h"
// 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 (SExpandPicFunc* pExpandPicFunc, const uint32_t kuiCPUFlag) {
pExpandPicFunc->pfExpandLumaPicture = ExpandPictureLuma_c;
pExpandPicFunc->pfExpandChromaPicture[0] = ExpandPictureChroma_c;
pExpandPicFunc->pfExpandChromaPicture[1] = ExpandPictureChroma_c;
#if defined(X86_ASM)
if ((kuiCPUFlag & WELS_CPU_SSE2) == WELS_CPU_SSE2) {
pExpandPicFunc->pfExpandLumaPicture = ExpandPictureLuma_sse2;
pExpandPicFunc->pfExpandChromaPicture[0] = ExpandPictureChromaUnalign_sse2;
pExpandPicFunc->pfExpandChromaPicture[1] = ExpandPictureChromaAlign_sse2;
}
#endif//X86_ASM
#if defined(HAVE_NEON)
if (kuiCPUFlag & WELS_CPU_NEON) {
pExpandPicFunc->pfExpandLumaPicture = ExpandPictureLuma_neon;
pExpandPicFunc->pfExpandChromaPicture[0] = ExpandPictureChroma_neon;
pExpandPicFunc->pfExpandChromaPicture[1] = ExpandPictureChroma_neon;
}
#endif//HAVE_NEON
#if defined(HAVE_NEON_AARCH64)
if (kuiCPUFlag & WELS_CPU_NEON) {
pExpandPicFunc->pfExpandLumaPicture = ExpandPictureLuma_AArch64_neon;
pExpandPicFunc->pfExpandChromaPicture[0] = ExpandPictureChroma_AArch64_neon;
pExpandPicFunc->pfExpandChromaPicture[1] = ExpandPictureChroma_AArch64_neon;
}
#endif//HAVE_NEON_AARCH64
}
//void ExpandReferencingPicture (SPicture* pPic, PExpandPictureFunc pExpLuma, PExpandPictureFunc pExpChrom[2]) {
void ExpandReferencingPicture (uint8_t* pData[3], int32_t iWidth, int32_t iHeight, int32_t iStride[3],
PExpandPictureFunc pExpLuma, PExpandPictureFunc pExpChrom[2]) {
/*local variable*/
uint8_t* pPicY = pData[0];
uint8_t* pPicCb = pData[1];
uint8_t* pPicCr = pData[2];
const int32_t kiWidthY = iWidth;
const int32_t kiHeightY = iHeight;
const int32_t kiWidthUV = kiWidthY >> 1;
const int32_t kiHeightUV = kiHeightY >> 1;
pExpLuma (pPicY, iStride[0], kiWidthY, kiHeightY);
if (kiWidthUV >= 16) {
// fix coding picture size as 16x16
const bool kbChrAligned = /*(iWidthUV >= 16) && */ ((kiWidthUV & 0x0F) == 0); // chroma planes: (16+iWidthUV) & 15
pExpChrom[kbChrAligned] (pPicCb, iStride[1], kiWidthUV, kiHeightUV);
pExpChrom[kbChrAligned] (pPicCr, iStride[2], kiWidthUV, kiHeightUV);
} else {
// fix coding picture size as 16x16
ExpandPictureChroma_c (pPicCb, iStride[1], kiWidthUV, kiHeightUV);
ExpandPictureChroma_c (pPicCr, iStride[2], kiWidthUV, kiHeightUV);
}
}