| /* |
| * Copyright © 2023 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_ict_float_rvv, zve32f |
| lla t0, ff_jpeg2000_f_ict_params |
| flw ft0, 0(t0) |
| flw ft1, 4(t0) |
| flw ft2, 8(t0) |
| flw ft3, 12(t0) |
| 1: |
| vsetvli t0, a3, e32, m8, ta, ma |
| vle32.v v8, (a0) |
| sub a3, a3, t0 |
| vle32.v v16, (a1) |
| vle32.v v24, (a2) |
| vfmul.vf v0, v16, ft1 |
| vfmadd.vf v16, ft3, v8 |
| vfsub.vv v0, v8, v0 |
| vfmacc.vf v8, ft0, v24 |
| vfnmsac.vf v0, ft2, v24 |
| vse32.v v8, (a0) |
| sh2add a0, t0, a0 |
| vse32.v v0, (a1) |
| sh2add a1, t0, a1 |
| vse32.v v16, (a2) |
| sh2add a2, t0, a2 |
| bnez a3, 1b |
| |
| ret |
| endfunc |
| |
| func ff_rct_int_rvv, zve32x |
| 1: |
| vsetvli t0, a3, e32, m8, ta, ma |
| vle32.v v16, (a1) |
| sub a3, a3, t0 |
| vle32.v v24, (a2) |
| vle32.v v8, (a0) |
| vadd.vv v0, v16, v24 |
| vsra.vi v0, v0, 2 |
| vsub.vv v0, v8, v0 |
| vadd.vv v8, v0, v24 |
| vadd.vv v24, v0, v16 |
| vse32.v v8, (a0) |
| sh2add a0, t0, a0 |
| vse32.v v0, (a1) |
| sh2add a1, t0, a1 |
| vse32.v v24, (a2) |
| sh2add a2, t0, a2 |
| bnez a3, 1b |
| |
| ret |
| endfunc |
