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avcodec/hapdec : use gray8 for HapAlphaOnly decoding instead of RGB0
[ffmpeg] / libavcodec / cga_data.c
1 /*
2  * CGA/EGA/VGA ROM data
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20
21 /**
22  * @file
23  * CGA/EGA/VGA ROM data
24  * @note fonts are in libavutil/xga_font_data.[ch]
25  */
26
27 #include <stdint.h>
28 #include "cga_data.h"
29
30 const uint32_t ff_cga_palette[16] = {
31     0xFF000000, 0xFF0000AA, 0xFF00AA00, 0xFF00AAAA, 0xFFAA0000, 0xFFAA00AA, 0xFFAA5500, 0xFFAAAAAA,
32     0xFF555555, 0xFF5555FF, 0xFF55FF55, 0xFF55FFFF, 0xFFFF5555, 0xFFFF55FF, 0xFFFFFF55, 0xFFFFFFFF,
33 };
34
35 const uint32_t ff_ega_palette[64] = {
36     0xFF000000, 0xFF0000AA, 0xFF00AA00, 0xFF00AAAA, 0xFFAA0000, 0xFFAA00AA, 0xFFAAAA00, 0xFFAAAAAA,
37     0xFF000055, 0xFF0000FF, 0xFF00AA55, 0xFF00AAFF, 0xFFAA0055, 0xFFAA00FF, 0xFFAAAA55, 0xFFAAAAFF,
38     0xFF005500, 0xFF0055AA, 0xFF00FF00, 0xFF00FFAA, 0xFFAA5500, 0xFFAA55AA, 0xFFAAFF00, 0xFFAAFFAA,
39     0xFF005555, 0xFF0055FF, 0xFF00FF55, 0xFF00FFFF, 0xFFAA5555, 0xFFAA55FF, 0xFFAAFF55, 0xFFAAFFFF,
40     0xFF550000, 0xFF5500AA, 0xFF55AA00, 0xFF55AAAA, 0xFFFF0000, 0xFFFF00AA, 0xFFFFAA00, 0xFFFFAAAA,
41     0xFF550055, 0xFF5500FF, 0xFF55AA55, 0xFF55AAFF, 0xFFFF0055, 0xFFFF00FF, 0xFFFFAA55, 0xFFFFAAFF,
42     0xFF555500, 0xFF5555AA, 0xFF55FF00, 0xFF55FFAA, 0xFFFF5500, 0xFFFF55AA, 0xFFFFFF00, 0xFFFFFFAA,
43     0xFF555555, 0xFF5555FF, 0xFF55FF55, 0xFF55FFFF, 0xFFFF5555, 0xFFFF55FF, 0xFFFFFF55, 0xFFFFFFFF
44 };
45
46 void ff_draw_pc_font(uint8_t *dst, int linesize, const uint8_t *font, int font_height, int ch, int fg, int bg)
47 {
48     int char_y, mask;
49     for (char_y = 0; char_y < font_height; char_y++) {
50         for (mask = 0x80; mask; mask >>= 1) {
51             *dst++ = font[ch * font_height + char_y] & mask ? fg : bg;
52         }
53         dst += linesize - 8;
54     }
55 }