int ui_init(int *fd_keyboard, int *fd_mouse)
{
int dac_shift, i, mouse_type, force_red;
if (vga_init() == 0)
{
old_mode = vga_getcurrentmode();
vga_setmode(G640x480x256);
/*vga_setlinearaddressing();*/
if (vga_ext_set(VGA_EXT_AVAILABLE, VGA_AVAIL_FLAGS) & VGA_CLUT8)
{
vga_ext_set(VGA_EXT_SET, VGA_CLUT8);
dac_shift = 0;
}
else
dac_shift = 2;
force_red = 0xFF;
for (i = 0; i < 255; i++)
vga_setpalette(i,
i >> dac_shift,
(i & force_red) >> dac_shift,
(i & force_red) >> dac_shift);
vga_setpalette(UI_LO_COLOR, 127 >> dac_shift, 0, 0); /* Save dim red for UI */
vga_setpalette(UI_HI_COLOR, 255 >> dac_shift, 0, 0); /* Save bright red for UI */
vga = vga_getmodeinfo(vga_getcurrentmode());
}
void SetVideoMode(short mode)
{ _mode_ = mode;
vga_init ();
if (!(vga_ext_set(VGA_EXT_AVAILABLE, VGA_AVAIL_SET) & (1 << VGA_EXT_PAGE_OFFSET))) {
puts("You need at least svgalib 1.2.10 to run this program!\n");
exit(1);
}
if (!vga_hasmode (_mode_)) {
fprintf (stderr, "Mode not available.\n");
exit (-1);
}
vga_setmode (_mode_);
_ginfo_ = vga_getmodeinfo (_mode_);
dX = _ginfo_->width;
dY = _ginfo_->height;
}