1 /*
2 * Copyright (c) 2021 Loongson Technology Corporation Limited
3 * Contributed by Hao Chen <chenhao@loongson.cn>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "libavutil/loongarch/cpu.h"
23 #include "idctdsp_loongarch.h"
24 #include "libavcodec/xvididct.h"
25
ff_idctdsp_init_loongarch(IDCTDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)26 av_cold void ff_idctdsp_init_loongarch(IDCTDSPContext *c, AVCodecContext *avctx,
27 unsigned high_bit_depth)
28 {
29 int cpu_flags = av_get_cpu_flags();
30
31 if (have_lasx(cpu_flags)) {
32 if ((avctx->lowres != 1) && (avctx->lowres != 2) && (avctx->lowres != 3) &&
33 (avctx->bits_per_raw_sample != 10) &&
34 (avctx->bits_per_raw_sample != 12) &&
35 (avctx->idct_algo == FF_IDCT_AUTO)) {
36 c->idct_put = ff_simple_idct_put_lasx;
37 c->idct_add = ff_simple_idct_add_lasx;
38 c->idct = ff_simple_idct_lasx;
39 c->perm_type = FF_IDCT_PERM_NONE;
40 }
41 c->put_pixels_clamped = ff_put_pixels_clamped_lasx;
42 c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_lasx;
43 c->add_pixels_clamped = ff_add_pixels_clamped_lasx;
44 }
45 }
46