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https://github.com/FFmpeg/FFmpeg.git
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67 lines
2.0 KiB
ArmAsm
67 lines
2.0 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_int32_to_float_fmul_scalar_rvv, zve32f
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NOHWF fmv.w.x fa0, a2
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NOHWF mv a2, a3
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1:
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vsetvli t0, a2, e32, m1, ta, ma
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vle32.v v24, (a1)
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sub a2, a2, t0
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vfcvt.f.x.v v24, v24
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sh2add a1, t0, a1
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vfmul.vf v24, v24, fa0
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vse32.v v24, (a0)
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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_int32_to_float_fmul_array8_rvv, zve32f
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srai a4, a4, 3
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1: vsetvli t0, a4, e32, m1, ta, ma
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vle32.v v24, (a3)
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slli t2, t0, 2 + 3
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vlseg8e32.v v16, (a2)
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vsetvli t3, zero, e32, m8, ta, ma
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vfcvt.f.x.v v16, v16
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vsetvli zero, a4, e32, m1, ta, ma
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vfmul.vv v16, v16, v24
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sub a4, a4, t0
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vfmul.vv v17, v17, v24
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sh2add a3, t0, a3
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vfmul.vv v18, v18, v24
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add a2, a2, t2
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vfmul.vv v19, v19, v24
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vfmul.vv v20, v20, v24
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vfmul.vv v21, v21, v24
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vfmul.vv v22, v22, v24
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vfmul.vv v23, v23, v24
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vsseg8e32.v v16, (a1)
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add a1, a1, t2
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bnez a4, 1b
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ret
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endfunc
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