ref: c5a09faf24190d66fbc9d97f6374dbb4dc203b4c
dir: /codec/common/src/intra_pred_common.cpp/
/*! * \copy * Copyright (c) 2009-2013, 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. * * * \file get_intra_predictor.c * * \brief implementation for get intra predictor about 16x16, 4x4, chroma. * * \date 4/2/2009 Created * 9/14/2009 C level based optimization with high performance gained. * [const, using ST32/ST64 to replace memset, memcpy and memmove etc.] * ************************************************************************************* */ #include "ls_defines.h" #include "cpu_core.h" #include "intra_pred_common.h" void WelsI16x16LumaPredV_c (uint8_t* pPred, uint8_t* pRef, const int32_t kiStride) { uint8_t i = 15; const int8_t* kpSrc = (int8_t*)&pRef[-kiStride]; const uint64_t kuiT1 = LD64 (kpSrc); const uint64_t kuiT2 = LD64 (kpSrc + 8); uint8_t* pDst = pPred; do { ST64 (pDst , kuiT1); ST64 (pDst + 8, kuiT2); pDst += 16; } while (i-- > 0); } void WelsI16x16LumaPredH_c (uint8_t* pPred, uint8_t* pRef, const int32_t kiStride) { int32_t iStridex15 = (kiStride << 4) - kiStride; int32_t iPredStride = 16; int32_t iPredStridex15 = 240; //(iPredStride<<4)-iPredStride; uint8_t i = 15; do { const uint8_t kuiSrc8 = pRef[iStridex15 - 1]; const uint64_t kuiV64 = (uint64_t) (0x0101010101010101ULL * kuiSrc8); ST64 (&pPred[iPredStridex15], kuiV64); ST64 (&pPred[iPredStridex15 + 8], kuiV64); iStridex15 -= kiStride; iPredStridex15 -= iPredStride; } while (i-- > 0); }