+#include "system.h"
+
+
+/* default fonts */
+#define FONT_INITIAL_1 0
+#define FONT_INITIAL_2 1
+#define FONT_INITIAL_3 2
+#define FONT_INITIAL_4 3
+
+/* font colors */
+#define FC_RED FONT_INITIAL_1
+#define FC_BLUE FONT_INITIAL_2
+#define FC_GREEN FONT_INITIAL_3
+#define FC_YELLOW FONT_INITIAL_4
+
+/* text output definitions */
+#define MAX_OUTPUT_LINESIZE 1024
+
+/* special character mapping for default fonts */
+#define FONT_ASCII_CURSOR ((char)160)
+#define FONT_ASCII_BUTTON ((char)128)
+#define FONT_ASCII_UP ((char)129)
+#define FONT_ASCII_DOWN ((char)130)
+#define FONT_ASCII_LEFT ((char)'<')
+#define FONT_ASCII_RIGHT ((char)'>')
+
+#define MAP_FONT_ASCII(c) ((c) >= 'a' && (c) <= 'z' ? 'A' + (c) - 'a' : \
+ (c) == '©' ? 96 : \
+ (c) == 'ä' || (c) == 'Ä' ? 97 : \
+ (c) == 'ö' || (c) == 'Ö' ? 98 : \
+ (c) == 'ü' || (c) == 'Ü' ? 99 : \
+ (c) == '°' ? 100 : \
+ (c) == '®' ? 101 : \
+ (c) == FONT_ASCII_CURSOR ? 102 : \
+ (c) == FONT_ASCII_BUTTON ? 109 : \
+ (c) == FONT_ASCII_UP ? 110 : \
+ (c) == FONT_ASCII_DOWN ? 111 : \
+ (c))
+
+/* 64 regular ordered ASCII characters, 6 special characters, 1 cursor char. */
+#define MIN_NUM_CHARS_PER_FONT 64
+#define DEFAULT_NUM_CHARS_PER_FONT (MIN_NUM_CHARS_PER_FONT + 6 +1)
+#define DEFAULT_NUM_CHARS_PER_LINE 16
+
+
+/* font structure definitions */
+
+void InitFontInfo(struct FontBitmapInfo *, int,
+ int (*function1)(int), int (*function2)(char *));
+void FreeFontInfo(struct FontBitmapInfo *);
+
+struct FontBitmapInfo *getFontBitmapInfo(int);
+
+int getFontWidth(int);
+int getFontHeight(int);
+int getTextWidth(char *, int);
+
+void getFontCharSource(int, char, Bitmap **, int *, int *);