1 /* Project 16 Source Code~
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2 * Copyright (C) 2012-2017 sparky4 & pngwen & andrius4669 & joncampbell123 & yakui-lover
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4 * This file is part of Project 16.
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6 * Project 16 is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 3 of the License, or
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9 * (at your option) any later version.
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11 * Project 16 is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>, or
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18 * write to the Free Software Foundation, Inc., 51 Franklin Street,
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19 * Fifth Floor, Boston, MA 02110-1301 USA.
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23 * This is the text subsystem for project 16.
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24 * These functions provide for the rendering of text strings
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25 * using the BIOS fonts.
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26 * They copy the font characters directly to VGA.
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31 #include <jstring.h>
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34 #include "src/lib/16_head.h"
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36 /* font information type */
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37 typedef struct font {
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38 word seg; //segment for the font
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39 word off; //offset in the segment for the font
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40 byte charSize; //bytes in each character
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43 typedef struct fontdata {
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46 byte bgcol; //bg color!
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47 word chw; //char width
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51 /* storage for the rom fonts */
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52 extern font_t romFonts[4];
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53 extern fontdata_t romFontsData;
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54 #define ROM_FONT_8x14 0
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55 #define ROM_FONT_8x8_LOW 1
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56 #define ROM_FONT_8x8_HIGH 2
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57 #define ROM_FONT_8x16 3
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59 /* This function initializes the text engine */
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