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39abb1ac94
On SpacemiT X86, before: diff_pixels_unaligned_rvv_i32: 250.2 ( 0.59x) ...after: diff_pixels_unaligned_rvv_i32: 56.9 ( 2.60x)
84 lines
2.2 KiB
ArmAsm
84 lines
2.2 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 "libavutil/riscv/asm.S"
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func ff_get_pixels_8_rvv, zve64x
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lpad 0
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vsetivli zero, 8, e8, mf2, ta, ma
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li t0, 8 * 8
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vlse64.v v16, (a1), a2
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vsetvli zero, t0, e8, m4, ta, ma
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vwcvtu.x.x.v v8, v16
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vse16.v v8, (a0)
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ret
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endfunc
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func ff_get_pixels_unaligned_8_rvv, zve32x
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lpad 0
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li t2, 8
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vsetivli zero, 8, e8, mf2, ta, ma
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1:
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add t1, a1, a2
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vle8.v v16, (a1)
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addi t0, a0, 2 * 8
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vle8.v v17, (t1)
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addi t2, t2, -2
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vwcvtu.x.x.v v8, v16
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vwcvtu.x.x.v v9, v17
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vse16.v v8, (a0)
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add a1, t1, a2
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vse16.v v9, (t0)
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addi a0, t0, 2 * 8
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bnez t2, 1b
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ret
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endfunc
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func ff_diff_pixels_rvv, zve64x
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lpad 0
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vsetivli zero, 8, e8, mf2, ta, ma
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li t0, 8 * 8
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vlse64.v v16, (a1), a3
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vlse64.v v24, (a2), a3
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vsetvli zero, t0, e8, m4, ta, ma
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vwsubu.vv v8, v16, v24
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vse16.v v8, (a0)
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ret
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endfunc
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func ff_diff_pixels_unaligned_rvv, zve32x
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lpad 0
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li t3, 8
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vsetivli zero, 8, e8, mf2, ta, ma
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1:
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vle8.v v16, (a1)
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add a1, a1, a3
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vle8.v v24, (a2)
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add a2, a2, a3
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vwsubu.vv v8, v16, v24
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addi t3, t3, -1
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vse16.v v8, (a0)
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addi a0, a0, 2 * 8
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bnez t3, 1b
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ret
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endfunc
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