font.c

pocket pc hx4700 bootloader

/*
 * Copyright (C) 2005,2006 Pawel Kolodziejski
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */

void drawChar(int x, int y, int c, int reverse, unsigned short color) {
	int px, py, pixel;
	unsigned short *vidbuffer = (unsigned short *)0xA3000000;
	unsigned char *fontdata_8x8 = (unsigned char *)0xA203F800;

	for (py = 0; py < 8; py++) {
		int line = fontdata_8x8[py + c * 8];
		for (px = 0; px < 8; px++) {
			pixel = line & 0x80;
			line <<= 1;
			if (reverse == 0) {
				if (pixel)
					*(vidbuffer + (py + y) * 240 + (px + x)) = color;
				else
					*(vidbuffer + (py + y) * 240 + (px + x)) = 0xffff;
			} else {
				if (pixel)
					*(vidbuffer + (py + y) * 240 + (px + x)) = 0xffff;
				else
					*(vidbuffer + (py + y) * 240 + (px + x)) = color;
			}
		}
	}
}

void drawText(int x, int y, char *text, int reverse, unsigned short color) {
	int l;

	for (l = 0; l < (int)strlen(text); l++) {
		drawChar((x * 8) + (l * 8), y * 8, text[l], reverse, color);
	}
}