codec/processing/src/common/common.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 "common.h"
#include "ls_defines.h"

WELSVP_NAMESPACE_BEGIN

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);
}

WELSVP_NAMESPACE_END