From: Nicolas Raitman (new_world@radar.com.ar)
Date: Sat 02 Sep 2000 - 15:35:49 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
This archive was generated by hypermail 2.1.4 : Wed 21 Jan 2004 - 22:10:23 IST