/*
 * Copyright (C) 2015 Paul B Mahol
 *
 * 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/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/mem.h"
#include "libavutil/x86/asm.h"
#include "libavutil/x86/cpu.h"
#include "libavfilter/w3fdif.h"

void ff_w3fdif_simple_low_sse2(int32_t *work_line,
                               uint8_t *in_lines_cur[2],
                               const int16_t *coef, int linesize);

void ff_w3fdif_simple_high_sse2(int32_t *work_line,
                                uint8_t *in_lines_cur[3],
                                uint8_t *in_lines_adj[3],
                                const int16_t *coef, int linesize);

void ff_w3fdif_complex_low_sse2(int32_t *work_line,
                                uint8_t *in_lines_cur[4],
                                const int16_t *coef, int linesize);

void ff_w3fdif_complex_high_sse2(int32_t *work_line,
                                 uint8_t *in_lines_cur[5],
                                 uint8_t *in_lines_adj[5],
                                 const int16_t *coef, int linesize);

void ff_w3fdif_scale_sse2(uint8_t *out_pixel, const int32_t *work_pixel,
                          int linesize, int max);

av_cold void ff_w3fdif_init_x86(W3FDIFDSPContext *dsp, int depth)
{
    int cpu_flags = av_get_cpu_flags();

    if (EXTERNAL_SSE2(cpu_flags) && depth <= 8) {
        dsp->filter_simple_low   = ff_w3fdif_simple_low_sse2;
        dsp->filter_simple_high  = ff_w3fdif_simple_high_sse2;
        dsp->filter_complex_low  = ff_w3fdif_complex_low_sse2;
        dsp->filter_scale        = ff_w3fdif_scale_sse2;
    }

    if (ARCH_X86_64 && EXTERNAL_SSE2(cpu_flags) && depth <= 8) {
        dsp->filter_complex_high = ff_w3fdif_complex_high_sse2;
    }
}
