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62 lines
1.8 KiB
62 lines
1.8 KiB
/* |
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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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