ref: 2171d84f1e5b881d1a95e157682b27edc45ad047
dir: /codec/common/arm64/intra_pred_common_aarch64_neon.S/
/*!
* \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.
*
*/
#ifdef HAVE_NEON_AARCH64
#include "arm_arch64_common_macro.S"
//for Luma 16x16
//void WelsI16x16LumaPredV_AArch64_neon (uint8_t* pPred, uint8_t* pRef, const int32_t kiStride);
WELS_ASM_AARCH64_FUNC_BEGIN WelsI16x16LumaPredV_AArch64_neon
SIGN_EXTENSION x2,w2
sub x3, x1, x2
ld1 {v0.16b}, [x3]
.rept 16
st1 {v0.16b}, [x0], 16
.endr
WELS_ASM_AARCH64_FUNC_END
//void WelsI16x16LumaPredH_AArch64_neon (uint8_t* pPred, uint8_t* pRef, const int32_t kiStride);
WELS_ASM_AARCH64_FUNC_BEGIN WelsI16x16LumaPredH_AArch64_neon
SIGN_EXTENSION x2,w2
sub x3, x1, #1
.rept 16
ld1r {v0.16b}, [x3], x2
st1 {v0.16b}, [x0], 16
.endr
WELS_ASM_AARCH64_FUNC_END
#endif