Spaces:
Runtime error
Runtime error
| /* | |
| * 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" | |
| #if (__riscv_xlen == 64) | |
| func ff_alac_decorrelate_stereo_rvv, zve32x | |
| ld a4, 8(a0) | |
| ld a0, 0(a0) | |
| 1: | |
| vsetvli t0, a1, e32, m1, ta, ma | |
| vle32.v v24, (a4) | |
| sub a1, a1, t0 | |
| vle32.v v16, (a0) | |
| vmul.vx v8, v24, a3 | |
| vadd.vv v24, v24, v16 | |
| vsra.vx v8, v8, a2 | |
| vsub.vv v16, v16, v8 | |
| vsub.vv v24, v24, v8 | |
| vse32.v v16, (a4) | |
| sh2add a4, t0, a4 | |
| vse32.v v24, (a0) | |
| sh2add a0, t0, a0 | |
| bnez a1, 1b | |
| ret | |
| endfunc | |
| func ff_alac_append_extra_bits_mono_rvv, zve32x | |
| ld a0, (a0) | |
| ld a1, (a1) | |
| 1: | |
| vsetvli t0, a4, e32, m1, ta, ma | |
| vle32.v v16, (a0) | |
| sub a4, a4, t0 | |
| vle32.v v24, (a1) | |
| sh2add a1, t0, a1 | |
| vsll.vx v16, v16, a2 | |
| vor.vv v16, v24, v16 | |
| vse32.v v16, (a0) | |
| sh2add a0, t0, a0 | |
| bnez a4, 1b | |
| ret | |
| endfunc | |
| func ff_alac_append_extra_bits_stereo_rvv, zve32x | |
| ld a6, 8(a0) | |
| ld a0, (a0) | |
| ld a7, 8(a1) | |
| ld a1, (a1) | |
| 1: | |
| vsetvli t0, a4, e32, m1, ta, ma | |
| vle32.v v16, (a0) | |
| sub a4, a4, t0 | |
| vle32.v v0, (a6) | |
| vsll.vx v16, v16, a2 | |
| vsll.vx v0, v0, a2 | |
| vle32.v v24, (a1) | |
| sh2add a1, t0, a1 | |
| vle32.v v8, (a7) | |
| sh2add a7, t0, a7 | |
| vor.vv v16, v24, v16 | |
| vor.vv v0, v8, v0 | |
| vse32.v v16, (a0) | |
| sh2add a0, t0, a0 | |
| vse32.v v0, (a6) | |
| sh2add a6, t0, a6 | |
| bnez a4, 1b | |
| ret | |
| endfunc | |
| #endif | |