/*

 * V210 encoder DSP init

 *

 * Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>

 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot 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

 */

#ifndef AVCODEC_V210ENC_INIT_H

#define AVCODEC_V210ENC_INIT_H

#include <stddef.h>

#include <stdint.h>

#include "config.h"

#include "libavutil/attributes.h"

#include "libavutil/common.h"

#include "libavutil/intreadwrite.h"

#include "v210enc.h"

#define CLIP(v, depth) av_clip(v, 1<<(depth-8), ((1<<depth)-(1<<(depth-8))-1))

#define WRITE_PIXELS(a, b, c, depth)                      \

    do {                                                  \

        val  =  CLIP(*a++, depth)  << (10-depth);         \

        val |=  (CLIP(*b++, depth) << (20-depth)) |       \

                (CLIP(*c++, depth) << (30-depth));        \

        AV_WL32(dst, val);                                \

        dst += 4;                                         \

    } while (0)

static void v210_planar_pack_8_c(const uint8_t *y, const uint8_t *u,

                                 const uint8_t *v, uint8_t *dst,

                                 ptrdiff_t width)

{

    uint32_t val;

    /* unroll this to match the assembly */

    for (int i = 0; i < width - 11; i += 12) {

        WRITE_PIXELS(u, y, v, 8);

        WRITE_PIXELS(y, u, y, 8);

        WRITE_PIXELS(v, y, u, 8);

        WRITE_PIXELS(y, v, y, 8);

        WRITE_PIXELS(u, y, v, 8);

        WRITE_PIXELS(y, u, y, 8);

        WRITE_PIXELS(v, y, u, 8);

        WRITE_PIXELS(y, v, y, 8);

    }

}

static void v210_planar_pack_10_c(const uint16_t *y, const uint16_t *u,

                                  const uint16_t *v, uint8_t *dst,

                                  ptrdiff_t width)

{

    uint32_t val;

    for (int i = 0; i < width - 5; i += 6) {

        WRITE_PIXELS(u, y, v, 10);

        WRITE_PIXELS(y, u, y, 10);

        WRITE_PIXELS(v, y, u, 10);

        WRITE_PIXELS(y, v, y, 10);

    }

}

av_unused av_cold static void ff_v210enc_init(V210EncContext *s)

{

    s->pack_line_8  = v210_planar_pack_8_c;

    s->pack_line_10 = v210_planar_pack_10_c;

    s->sample_factor_8  = 2;

    s->sample_factor_10 = 1;

#if ARCH_X86 && HAVE_X86ASM

    ff_v210enc_init_x86(s);

#endif

}

#endif /* AVCODEC_V210ENC_INIT_H */