summaryrefslogtreecommitdiffstats
path: root/libavcodec/utvideodsp.c
blob: 0831a6b97b2f0b643d87fb11555dd19a7dd8cb83 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
/*
 * 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 "config.h"
#include "libavutil/attributes.h"
#include "utvideodsp.h"

static void restore_rgb_planes_c(uint8_t *src_r,
                                 uint8_t *src_g,
                                 uint8_t *src_b,
                                 ptrdiff_t linesize_r,
                                 ptrdiff_t linesize_g,
                                 ptrdiff_t linesize_b,
                                 int width, int height)
{
    uint8_t r, g, b;
    int i, j;

    for (j = 0; j < height; j++) {
        for (i = 0; i < width; i++) {
            r = src_r[i];
            g = src_g[i];
            b = src_b[i];
            src_r[i] = r + g - 0x80;
            src_b[i] = b + g - 0x80;
        }
        src_r += linesize_r;
        src_g += linesize_g;
        src_b += linesize_b;
    }
}

static void restore_rgb_planes10_c(uint16_t *src_r,
                                   uint16_t *src_g,
                                   uint16_t *src_b,
                                   ptrdiff_t linesize_r,
                                   ptrdiff_t linesize_g,
                                   ptrdiff_t linesize_b,
                                   int width, int height)
{
    int r, g, b;
    int i, j;

    for (j = 0; j < height; j++) {
        for (i = 0; i < width; i++) {
            r = src_r[i];
            g = src_g[i];
            b = src_b[i];
            src_r[i] = (r + g - 0x200) & 0x3FF;
            src_b[i] = (b + g - 0x200) & 0x3FF;
        }
        src_r += linesize_r;
        src_g += linesize_g;
        src_b += linesize_b;
    }
}

av_cold void ff_utvideodsp_init(UTVideoDSPContext *c)
{
    c->restore_rgb_planes   = restore_rgb_planes_c;
    c->restore_rgb_planes10 = restore_rgb_planes10_c;

    if (ARCH_X86)
        ff_utvideodsp_init_x86(c);
}
OpenPOWER on IntegriCloud