67 lines
2.2 KiB
ArmAsm
67 lines
2.2 KiB
ArmAsm
/****************************************************************************
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* mc-a-common.S: aarch64 motion compensation
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*****************************************************************************
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* Copyright (C) 2009-2025 x264 project
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*
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* Authors: David Conrad <lessen42@gmail.com>
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* Janne Grunau <janne-x264@jannau.net>
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* Mans Rullgard <mans@mansr.com>
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* Stefan Groenroos <stefan.gronroos@gmail.com>
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* David Chen <david.chen@myais.com.cn>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
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*
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* This program is also available under a commercial proprietary license.
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* For more information, contact us at licensing@x264.com.
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*****************************************************************************/
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// This file contains the NEON macros and functions that are intended to be used by
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// the SVE/SVE2 functions as well
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#if BIT_DEPTH == 8
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// 0 < weight < 64
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.macro load_weights_add_add
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mov w6, w6
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.endm
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// weight > 64
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.macro load_weights_add_sub
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neg w7, w7
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.endm
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// weight < 0
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.macro load_weights_sub_add
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neg w6, w6
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.endm
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function pixel_avg_w4_neon
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1: subs w9, w9, #2
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ld1 {v0.s}[0], [x2], x3
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ld1 {v2.s}[0], [x4], x5
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urhadd v0.8b, v0.8b, v2.8b
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ld1 {v1.s}[0], [x2], x3
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ld1 {v3.s}[0], [x4], x5
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urhadd v1.8b, v1.8b, v3.8b
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st1 {v0.s}[0], [x0], x1
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st1 {v1.s}[0], [x0], x1
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b.gt 1b
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ret
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endfunc
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#else // BIT_DEPTH == 10
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#endif
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