| /* |
| * Copyright © 2022 Rémi Denis-Courmont. |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/riscv/asm.S" |
| |
| func ff_get_pixels_8_rvv, zve64x |
| vsetivli zero, 8, e8, mf2, ta, ma |
| li t0, 8 * 8 |
| 1: |
| vlse64.v v16, (a1), a2 |
| vsetvli zero, t0, e8, m4, ta, ma |
| vwcvtu.x.x.v v8, v16 |
| vse16.v v8, (a0) |
| ret |
| endfunc |
| |
| func ff_get_pixels_unaligned_8_rvv, zve64x |
| andi t1, a1, 7 |
| vsetivli zero, 8, e64, m4, ta, ma |
| li t0, 8 * 8 |
| beqz t1, 1b |
| andi a1, a1, -8 |
| slli t2, t1, 3 |
| addi t1, a1, 8 |
| sub t3, t0, t2 |
| vlse64.v v16, (a1), a2 |
| vlse64.v v24, (t1), a2 |
| vsrl.vx v16, v16, t2 |
| vsll.vx v24, v24, t3 |
| vor.vv v16, v16, v24 |
| vsetvli zero, t0, e8, m4, ta, ma |
| vwcvtu.x.x.v v8, v16 |
| vse16.v v8, (a0) |
| ret |
| endfunc |
| |
| func ff_diff_pixels_rvv, zve64x |
| vsetivli zero, 8, e8, mf2, ta, ma |
| li t0, 8 * 8 |
| vlse64.v v16, (a1), a3 |
| vlse64.v v24, (a2), a3 |
| vsetvli zero, t0, e8, m4, ta, ma |
| vwsubu.vv v8, v16, v24 |
| vse16.v v8, (a0) |
| ret |
| endfunc |
| |
| func ff_diff_pixels_unaligned_rvv, zve32x |
| vsetivli zero, 8, e8, mf2, ta, ma |
| vlsseg8e8.v v16, (a1), a3 |
| vlsseg8e8.v v24, (a2), a3 |
| vwsubu.vv v8, v16, v24 |
| vwsubu.vv v9, v17, v25 |
| vwsubu.vv v10, v18, v26 |
| vwsubu.vv v11, v19, v27 |
| vwsubu.vv v12, v20, v28 |
| vwsubu.vv v13, v21, v29 |
| vwsubu.vv v14, v22, v30 |
| vwsubu.vv v15, v23, v31 |
| vsseg8e16.v v8, (a0) |
| ret |
| endfunc |
