/*! * \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, 9/27/2009static 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);  }   }