1 /* Project 16 Source Code~
\r
2 * Copyright (C) 2012-2023 sparky4 & pngwen & andrius4669 & joncampbell123 & yakui-lover
\r
4 * This file is part of Project 16.
\r
6 * Project 16 is free software; you can redistribute it and/or modify
\r
7 * it under the terms of the GNU General Public License as published by
\r
8 * the Free Software Foundation; either version 3 of the License, or
\r
9 * (at your option) any later version.
\r
11 * Project 16 is distributed in the hope that it will be useful,
\r
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
\r
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\r
14 * GNU General Public License for more details.
\r
16 * You should have received a copy of the GNU General Public License
\r
17 * along with this program. If not, see <http://www.gnu.org/licenses/>, or
\r
18 * write to the Free Software Foundation, Inc., 51 Franklin Street,
\r
19 * Fifth Floor, Boston, MA 02110-1301 USA.
\r
23 * This is the text subsystem for project 16.
\r
24 * These functions provide for the rendering of text strings
\r
25 * using the BIOS fonts.
\r
26 * They copy the font characters directly to VGA.
\r
31 #include <jstring.h>
\r
34 #include "src/lib/16_head.h"
\r
36 /* font information type */
\r
37 typedef struct font {
\r
38 word seg; //segment for the font
\r
39 word off; //offset in the segment for the font
\r
40 byte charSize; //bytes in each character
\r
43 typedef struct fontdata {
\r
46 byte bgcol; //bg color!
\r
47 word chw; //char width
\r
51 /* storage for the rom fonts */
\r
52 extern font_t romFonts[4];
\r
53 extern fontdata_t romFontsData;
\r
54 #define ROM_FONT_8x14 0
\r
55 #define ROM_FONT_8x8_LOW 1
\r
56 #define ROM_FONT_8x8_HIGH 2
\r
57 #define ROM_FONT_8x16 3
\r
59 /* This function initializes the text engine */
\r