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https://git.ffmpeg.org/ffmpeg.git
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63 lines
1.8 KiB
ArmAsm
63 lines
1.8 KiB
ArmAsm
/*
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* Copyright © 2022 Rémi Denis-Courmont.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "libavutil/riscv/asm.S"
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func ff_bswap32_buf_rvv, zve32x
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li t4, 4
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addi t1, a0, 1
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addi t2, a0, 2
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addi t3, a0, 3
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1:
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vsetvli t0, a2, e8, m1, ta, ma
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vlseg4e8.v v8, (a1)
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sub a2, a2, t0
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sh2add a1, t0, a1
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vsse8.v v8, (t3), t4
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sh2add t3, t0, t3
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vsse8.v v9, (t2), t4
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sh2add t2, t0, t2
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vsse8.v v10, (t1), t4
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sh2add t1, t0, t1
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vsse8.v v11, (a0), t4
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sh2add a0, t0, a0
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bnez a2, 1b
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ret
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endfunc
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func ff_bswap16_buf_rvv, zve32x
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li t2, 2
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addi t1, a0, 1
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1:
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vsetvli t0, a2, e8, m1, ta, ma
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vlseg2e8.v v8, (a1)
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sub a2, a2, t0
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sh1add a1, t0, a1
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vsse8.v v8, (t1), t2
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sh1add t1, t0, t1
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vsse8.v v9, (a0), t2
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sh1add a0, t0, a0
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bnez a2, 1b
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ret
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endfunc
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