FFmpeg/libavcodec/x86/vp3dsp_init.c

/*
 * Copyright (c) 2009 David Conrad <lessen42@gmail.com>
 *
 * 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 "libavutil/cpu.h"
#include "libavutil/x86/cpu.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/vp3dsp.h"

void ff_vp3_idct_put_sse2(uint8_t *dest, ptrdiff_t stride, int16_t *block);
void ff_vp3_idct_add_sse2(uint8_t *dest, ptrdiff_t stride, int16_t *block);

void ff_vp3_idct_dc_add_mmxext(uint8_t *dest, ptrdiff_t stride, int16_t *block);

void ff_vp3_v_loop_filter_mmxext(uint8_t *src, ptrdiff_t stride,
                                 int *bounding_values);
void ff_vp3_h_loop_filter_mmxext(uint8_t *src, ptrdiff_t stride,
                                 int *bounding_values);

void ff_put_vp_no_rnd_pixels8_l2_mmx(uint8_t *dst, const uint8_t *a,
                                     const uint8_t *b, ptrdiff_t stride,
                                     int h);

av_cold void ff_vp3dsp_init_x86(VP3DSPContext *c, int flags)
{
    int cpu_flags = av_get_cpu_flags();

    if (EXTERNAL_MMX(cpu_flags)) {
        c->put_no_rnd_pixels_l2 = ff_put_vp_no_rnd_pixels8_l2_mmx;
    }

    if (EXTERNAL_MMXEXT(cpu_flags)) {
        c->idct_dc_add = ff_vp3_idct_dc_add_mmxext;

        if (!(flags & AV_CODEC_FLAG_BITEXACT)) {
            c->v_loop_filter = c->v_loop_filter_unaligned = ff_vp3_v_loop_filter_mmxext;
            c->h_loop_filter = c->h_loop_filter_unaligned = ff_vp3_h_loop_filter_mmxext;
        }
    }

    if (EXTERNAL_SSE2(cpu_flags)) {
        c->idct_put  = ff_vp3_idct_put_sse2;
        c->idct_add  = ff_vp3_idct_add_sse2;
    }
}