mirror of https://github.com/NekoX-Dev/NekoX.git
78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
/*!
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* \copy
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* Copyright (c) 2009-2013, Cisco Systems
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*
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* \file get_intra_predictor.c
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*
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* \brief implementation for get intra predictor about 16x16, 4x4, chroma.
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*
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* \date 4/2/2009 Created
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* 9/14/2009 C level based optimization with high performance gained.
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* [const, using ST32/ST64 to replace memset, memcpy and memmove etc.]
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*
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*************************************************************************************
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*/
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#include "ls_defines.h"
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#include "cpu_core.h"
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#include "intra_pred_common.h"
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void WelsI16x16LumaPredV_c (uint8_t* pPred, uint8_t* pRef, const int32_t kiStride) {
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uint8_t i = 15;
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const int8_t* kpSrc = (int8_t*)&pRef[-kiStride];
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const uint64_t kuiT1 = LD64 (kpSrc);
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const uint64_t kuiT2 = LD64 (kpSrc + 8);
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uint8_t* pDst = pPred;
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do {
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ST64 (pDst , kuiT1);
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ST64 (pDst + 8, kuiT2);
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pDst += 16;
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} while (i-- > 0);
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}
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void WelsI16x16LumaPredH_c (uint8_t* pPred, uint8_t* pRef, const int32_t kiStride) {
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int32_t iStridex15 = (kiStride << 4) - kiStride;
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int32_t iPredStride = 16;
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int32_t iPredStridex15 = 240; //(iPredStride<<4)-iPredStride;
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uint8_t i = 15;
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do {
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const uint8_t kuiSrc8 = pRef[iStridex15 - 1];
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const uint64_t kuiV64 = (uint64_t) (0x0101010101010101ULL * kuiSrc8);
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ST64 (&pPred[iPredStridex15], kuiV64);
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ST64 (&pPred[iPredStridex15 + 8], kuiV64);
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iStridex15 -= kiStride;
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iPredStridex15 -= iPredStride;
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} while (i-- > 0);
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}
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