Although I haven't resolved the other issue regarding freeing an allocated
physical context I am proceeding anyway & ignoring that issue for the
moment.
I have run into a problem in that I can't get my virtual screen to display
on the physical - this makes it rather difficult to see what's going on :)
TIA of your assistance.
Ivan.
#include <stdio.h>
#include <stdlib.h>
#include <vgagl.h>
#include <vga.h>
main()
{
GraphicsContext *virtualscreen;
GraphicsContext *physicalscreen;
vga_init();
/*** create virtual screen ***/
gl_setcontextvgavirtual(35); /* G800x600x16M32 */
virtualscreen=gl_allocatecontext();
gl_getcontext(virtualscreen);
/*** create physical screen ***/
vga_setmode(35);
physicalscreen=gl_allocatecontext();
gl_getcontext(physicalscreen);
gl_setcontext(virtualscreen);
/* draw something here using gl_setpixelrgb() */
gl_copyscreen(physicalscreen);
/*** the documentation appears to be wrong here in that */
/*** gl_copyscreen(&physicalscreen) is suggested yet this */
/*** causes a compilation error for me */
while(getchar() != 'x');
/*** at this stage, I should have something visible and be */
/*** waiting for an 'x' input to terminate the programme */
/*** but in fact I am left looking at the same blank screen */
/*** that I started with :( */
vga_setmode(TEXT);
gl_freecontext(virtualscreen);
/* gl_freecontext(physicalscreen);*/
/*** the commented out line above causes a segmentation fault */
/*** as discussed in my last post */
return (0);
}
