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117 lines
3.7 KiB
117 lines
3.7 KiB
/* |
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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 pix_abs_ret |
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vsetivli zero, 1, e32, m1, ta, ma |
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vmv.x.s a0, v0 |
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ret |
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.endm |
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func ff_pix_abs16_rvv, zve32x |
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vsetivli zero, 1, e32, m1, ta, ma |
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vmv.s.x v0, zero |
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1: |
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vsetivli zero, 16, e8, m1, tu, ma |
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vle8.v v4, (a1) |
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vle8.v v12, (a2) |
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addi a4, a4, -1 |
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vwsubu.vv v16, v4, v12 |
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add a1, a1, a3 |
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vwsubu.vv v20, v12, v4 |
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vsetvli zero, zero, e16, m2, tu, ma |
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vmax.vv v16, v16, v20 |
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add a2, a2, a3 |
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vwredsum.vs v0, v16, v0 |
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bnez a4, 1b |
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pix_abs_ret |
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endfunc |
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func ff_pix_abs8_rvv, zve32x |
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vsetivli zero, 1, e32, m1, ta, ma |
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vmv.s.x v0, zero |
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1: |
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vsetivli zero, 8, e8, mf2, tu, ma |
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vle8.v v4, (a1) |
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vle8.v v12, (a2) |
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addi a4, a4, -1 |
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vwsubu.vv v16, v4, v12 |
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add a1, a1, a3 |
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vwsubu.vv v20, v12, v4 |
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vsetvli zero, zero, e16, m1, tu, ma |
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vmax.vv v16, v16, v20 |
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add a2, a2, a3 |
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vwredsum.vs v0, v16, v0 |
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bnez a4, 1b |
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pix_abs_ret |
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endfunc |
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func ff_pix_abs16_x2_rvv, zve32x |
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csrwi vxrm, 0 |
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vsetivli zero, 1, e32, m1, ta, ma |
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li t5, 1 |
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vmv.s.x v0, zero |
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1: |
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vsetivli zero, 17, e8, m2, tu, ma |
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vle8.v v12, (a2) |
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addi a4, a4, -1 |
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vslide1down.vx v24, v12, t5 |
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vsetivli zero, 16, e8, m1, tu, ma |
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vle8.v v4, (a1) |
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vaaddu.vv v12, v12, v24 |
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vwsubu.vv v16, v4, v12 |
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add a1, a1, a3 |
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vwsubu.vv v20, v12, v4 |
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vsetvli zero, zero, e16, m2, tu, ma |
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vmax.vv v16, v16, v20 |
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add a2, a2, a3 |
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vwredsum.vs v0, v16, v0 |
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bnez a4, 1b |
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pix_abs_ret |
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endfunc |
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func ff_pix_abs8_x2_rvv, zve32x |
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csrwi vxrm, 0 |
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vsetivli zero, 1, e32, m1, ta, ma |
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li t5, 1 |
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vmv.s.x v0, zero |
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1: |
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vsetivli zero, 9, e8, m1, tu, ma |
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vle8.v v12, (a2) |
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addi a4, a4, -1 |
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vslide1down.vx v24, v12, t5 |
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vsetivli zero, 8, e8, mf2, tu, ma |
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vle8.v v4, (a1) |
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vaaddu.vv v12, v12, v24 |
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vwsubu.vv v16, v4, v12 |
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add a1, a1, a3 |
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vwsubu.vv v20, v12, v4 |
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vsetvli zero, zero, e16, m1, tu, ma |
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vmax.vv v16, v16, v20 |
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add a2, a2, a3 |
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vwredsum.vs v0, v16, v0 |
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bnez a4, 1b |
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pix_abs_ret |
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endfunc
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