1/*
2 * V210 decoder DSP init
3 *
4 * Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
5 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#ifndef AVCODEC_V210DEC_INIT_H
25#define AVCODEC_V210DEC_INIT_H
26
27#include <stdint.h>
28
29#include "config.h"
30#include "libavutil/attributes.h"
31#include "libavutil/bswap.h"
32#include "v210dec.h"
33
34#define READ_PIXELS(a, b, c)         \
35    do {                             \
36        val  = av_le2ne32(*src++);   \
37        *a++ =  val & 0x3FF;         \
38        *b++ = (val >> 10) & 0x3FF;  \
39        *c++ = (val >> 20) & 0x3FF;  \
40    } while (0)
41
42static void v210_planar_unpack_c(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width)
43{
44    uint32_t val;
45
46    for (int i = 0; i < width - 5; i += 6) {
47        READ_PIXELS(u, y, v);
48        READ_PIXELS(y, u, y);
49        READ_PIXELS(v, y, u);
50        READ_PIXELS(y, v, y);
51    }
52}
53
54static av_unused av_cold void ff_v210dec_init(V210DecContext *s)
55{
56    s->unpack_frame = v210_planar_unpack_c;
57#if ARCH_X86
58    ff_v210_x86_init(s);
59#endif
60}
61
62#endif /* AVCODEC_V210DEC_INIT_H */
63