blockdsp_alpha.c

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/*
 * Alpha optimised block operations
 * Copyright (c) 2002 Falk Hueffner <falk@debian.org>
 *
 * 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 <stdint.h>

#include "libavutil/attributes.h"
#include "libavcodec/blockdsp.h"
#include "asm.h"

static void clear_blocks_axp(int16_t *blocks) {
    uint64_t *p = (uint64_t *) blocks;
    int n = sizeof(int16_t) * 6 * 64;

    do {
        p[0] = 0;
        p[1] = 0;
        p[2] = 0;
        p[3] = 0;
        p[4] = 0;
        p[5] = 0;
        p[6] = 0;
        p[7] = 0;
        p += 8;
        n -= 8 * 8;
    } while (n);
}

av_cold void ff_blockdsp_init_alpha(BlockDSPContext *c, unsigned high_bit_depth)
{
    if (!high_bit_depth) {
        c->clear_blocks = clear_blocks_axp;
    }
}