idctdsp_init_loongarch.c

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/*
 * Copyright (c) 2021 Loongson Technology Corporation Limited
 * Contributed by Hao Chen <chenhao@loongson.cn>
 *
 * 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/loongarch/cpu.h"
#include "idctdsp_loongarch.h"
#include "libavcodec/xvididct.h"
 
av_cold void ff_idctdsp_init_loongarch(IDCTDSPContext *c, AVCodecContext *avctx,
                                       unsigned high_bit_depth)
{
    int cpu_flags = av_get_cpu_flags();
 
    if (have_lasx(cpu_flags)) {
        if ((avctx->lowres != 1) && (avctx->lowres != 2) && (avctx->lowres != 3) &&
            (avctx->bits_per_raw_sample != 10) &&
            (avctx->bits_per_raw_sample != 12) &&
            (avctx->idct_algo == FF_IDCT_AUTO)) {
                    c->idct_put = ff_simple_idct_put_lasx;
                    c->idct_add = ff_simple_idct_add_lasx;
                    c->idct = ff_simple_idct_lasx;
                    c->perm_type = FF_IDCT_PERM_NONE;
        }
        c->put_pixels_clamped = ff_put_pixels_clamped_lasx;
        c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_lasx;
        c->add_pixels_clamped = ff_add_pixels_clamped_lasx;
    }
}