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79 lines
2.3 KiB
79 lines
2.3 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 "libavutil/riscv/asm.S" |
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func ff_get_pixels_8_rvv, zve64x |
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vsetivli zero, 8, e8, mf2, ta, ma |
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li t0, 8 * 8 |
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1: |
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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, zve64x |
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andi t1, a1, 7 |
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vsetivli zero, 8, e64, m4, ta, ma |
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li t0, 8 * 8 |
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beqz t1, 1b |
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andi a1, a1, -8 |
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slli t2, t1, 3 |
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addi t1, a1, 8 |
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sub t3, t0, t2 |
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vlse64.v v16, (a1), a2 |
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vlse64.v v24, (t1), a2 |
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vsrl.vx v16, v16, t2 |
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vsll.vx v24, v24, t3 |
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vor.vv v16, v16, v24 |
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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_diff_pixels_rvv, zve64x |
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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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vsetivli zero, 8, e8, mf2, ta, ma |
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vlsseg8e8.v v16, (a1), a3 |
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vlsseg8e8.v v24, (a2), a3 |
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vwsubu.vv v8, v16, v24 |
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vwsubu.vv v9, v17, v25 |
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vwsubu.vv v10, v18, v26 |
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vwsubu.vv v11, v19, v27 |
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vwsubu.vv v12, v20, v28 |
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vwsubu.vv v13, v21, v29 |
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vwsubu.vv v14, v22, v30 |
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vwsubu.vv v15, v23, v31 |
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vsseg8e16.v v8, (a0) |
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ret |
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endfunc
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