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https://github.com/FFmpeg/FFmpeg.git
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59 lines
1.8 KiB
ArmAsm
59 lines
1.8 KiB
ArmAsm
/*
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* Copyright (c) 2024 Institue of Software Chinese Academy of Sciences (ISCAS).
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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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.macro vsetvlstatic8 len an maxlen mn=m4
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.if \len == 4
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vsetivli zero, \len, e8, mf4, ta, ma
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.elseif \len == 8
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vsetivli zero, \len, e8, mf2, ta, ma
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.elseif \len == 16
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vsetivli zero, \len, e8, m1, ta, ma
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.elseif \len == 32
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li \an, \len
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vsetvli zero, \an, e8, m2, ta, ma
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.elseif \len == 64
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li \an, \maxlen
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vsetvli zero, \an, e8, \mn, ta, ma
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.endif
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.endm
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.macro copy_avg len
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func ff_vp9_avg\len\()_rvv, zve32x
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csrwi vxrm, 0
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vsetvlstatic8 \len, t0, 64
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1:
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vle8.v v8, (a2)
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vle8.v v16, (a0)
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vaaddu.vv v8, v8, v16
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addi a4, a4, -1
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vse8.v v8, (a0)
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add a2, a2, a3
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add a0, a0, a1
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bnez a4, 1b
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ret
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endfunc
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.endm
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.irp len, 64, 32, 16, 8, 4
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copy_avg \len
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.endr
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