static void set_window_for_amiga (void)
{
leave_graphics_mode ();
enter_graphics_mode (vgamode);
if (linear_mem != NULL && !need_dither)
gfxvidinfo.bufmem = linear_mem;
restore_vga_colors ();
}
void handle_events (void)
{
int button = mouse_getbutton ();
gui_requested = 0;
keyboard_update ();
mouse_update ();
lastmx += mouse_getx ();
lastmy += mouse_gety ();
mouse_setposition (0, 0);
buttonstate[0] = button & 4;
buttonstate[1] = button & 2;
buttonstate[2] = button & 1;
#ifdef PICASSO96
if (screen_is_picasso && !picasso_vidinfo.extra_mem) {
int i;
char *addr = gfxmemory + (picasso96_state.Address - gfxmem_start);
for (i = 0; i < picasso_vidinfo.height; i++, addr += picasso96_state.BytesPerRow) {
if (!picasso_invalid_lines[i])
continue;
picasso_invalid_lines[i] = 0;
vga_drawscanline (i, addr);
}
}
#endif
if (!screen_is_picasso && gui_requested) {
leave_graphics_mode ();
gui_changesettings ();
enter_graphics_mode (vgamode);
if (linear_mem != NULL && !need_dither)
gfxvidinfo.bufmem = linear_mem;
restore_vga_colors ();
notice_screen_contents_lost ();
}
}
int graphics_init (void)
{
int i;
need_dither = 0;
screen_is_picasso = 0;
if (!select_mode_from_prefs ())
return 0;
bitdepth = mode_bitdepth[currprefs.color_mode][0];
bit_unit = mode_bitdepth[currprefs.color_mode][1];
need_dither = mode_bitdepth[currprefs.color_mode][2];
modeinfo = *vga_getmodeinfo (vgamode);
gfxvidinfo.pixbytes = modeinfo.bytesperpixel;
if (!need_dither) {
if (modeinfo.bytesperpixel == 0) {
printf("Got a bogus value from SVGAlib...\n");
gfxvidinfo.pixbytes = 1;
}
} else {
gfxvidinfo.pixbytes = 2;
}
using_linear = -1;
if (!enter_graphics_mode (vgamode))
return 0;
sleep(2);
gfxvidinfo.maxblocklines = 0;
gfxvidinfo.width = modeinfo.width;
gfxvidinfo.height = modeinfo.height;
if (linear_mem != NULL && !need_dither) {
gfxvidinfo.bufmem = linear_mem;
gfxvidinfo.rowbytes = modeinfo.linewidth;
} else {
gfxvidinfo.rowbytes = (modeinfo.width * gfxvidinfo.pixbytes + 3) & ~3;
#if 1
gfxvidinfo.bufmem = malloc (gfxvidinfo.rowbytes);
gfxvidinfo.linemem = gfxvidinfo.bufmem;
memset (gfxvidinfo.bufmem, 0, gfxvidinfo.rowbytes);
#else
gfxvidinfo.bufmem = malloc(gfxvidinfo.rowbytes * modeinfo.height);
memset (gfxvidinfo.bufmem, 0, gfxvidinfo.rowbytes * modeinfo.height);
#endif
gfxvidinfo.emergmem = 0;
}
printf ("rowbytes %d\n", gfxvidinfo.rowbytes);
init_colors ();
buttonstate[0] = buttonstate[1] = buttonstate[2] = 0;
for(i = 0; i < 256; i++)
keystate[i] = 0;
lastmx = lastmy = 0;
newmousecounters = 0;
return 1;
}