From: Nicolas Raitman (new_world@radar.com.ar)
Date: Fri 01 Sep 2000 - 23:59:39 IDT
Hi to all... I have created the following files in order to make a library
but there is a mistake and i cannot find it. I guess that it might me the
arguments that im passing to the inicializar function but please help me.
Perhpahs the problem is that im trying to make a function to initialize the
graphics, but when i pass the arguments of the GraphicsContext perhaps the
variables initialize in some other part and when i return to the main
program their values have been lost.
/* libgraficos.c */
#include <stdio.h>
#include <stdlib.h>
#include <vgagl.h>
#include <vga.h>
#include <string.h>
#include "libgraficos.h"
float xmax, ymax, midx, midy;
extern void inicializar(GraphicsContext *physicalscreen, GraphicsContext
*virtualscreen)
{
extern unsigned char *gl_font8x8;
vga_disabledriverreport();
vga_init();
vga_setmode(12);
gl_setcontextvga(12);
physicalscreen = gl_allocatecontext();
gl_getcontext(physicalscreen);
gl_setcontextvgavirtual(12);
virtualscreen = gl_allocatecontext();
gl_getcontext(virtualscreen);
gl_setcontext(virtualscreen);
gl_setfont(8,8,gl_font8x8);
gl_setwritemode(FONT_COMPRESSED + WRITEMODE_MASKED);
xmax = vga_getxdim();
ymax = vga_getydim();
midx = xmax / 2;
midy = ymax / 2;
gl_clearscreen(0);
return;
}
/* libgraficos.h */
#ifndef LIBGRAFICOS_H_
#define LIBGRAFICOS_H_
void inicializar (GraphicsContext *, GraphicsContext *);
#undef LIBGRAFICOS_H_
#endif LIBGRAFICOS_H_
/* libtest.c the program testing the library */
#include <stdio.h>
#include <stdlib.h>
#include <vgakeyboard.h>
#include <math.h>
#include <vgagl.h>
#include <vga.h>
#include <string.h>
#include <unistd.h>
#include "libgraficos.h"
extern void inicializar (GraphicsContext *, GraphicsContext *);
#define TEXT 0
float midx, midy, xmax, ymax;
GraphicsContext *physical_screen;
GraphicsContext *virtual_screen;
int main (void)
{
inicializar(physical_screen, virtual_screen);
xmax = vga_getxdim();
ymax = vga_getydim();
midx = xmax / 2;
midy = ymax / 2;
gl_printf(xmax, ymax, "Prueba");
getchar();
gl_clearscreen(0);
vga_setmode(TEXT);
exit(EXIT_SUCCESS);
}
Please Help!!!!!! THANKS
Nicolas
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