void SDL_XBIOS_CentscreenSetmode(_THIS, int width, int height, int planes)
{
centscreen_mode_t newmode, curmode;
newmode.handle = newmode.mode = newmode.logx = newmode.logy = -1;
newmode.physx = width;
newmode.physy = height;
newmode.plan = planes;
Vwrite(0, &newmode, &curmode);
/* Disable screensaver */
Vread(&newmode);
newmode.mode &= ~(CSCREEN_SAVER|CSCREEN_ENERGYSTAR);
Vwrite(0, &newmode, &curmode);
}
int SDL_XBIOS_CentscreenInit(_THIS)
{
centscreen_mode_t curmode, listedmode;
unsigned long result;
int cur_handle; /* Current Centscreen mode handle */
/* Reset current mode list */
if (XBIOS_modelist) {
SDL_free(XBIOS_modelist);
XBIOS_nummodes = 0;
XBIOS_modelist = NULL;
}
/* Add Centscreen modes */
Vread(&curmode);
cur_handle = curmode.handle;
curmode.mode = curmode.physx = curmode.physy = curmode.plan =
curmode.logx = curmode.logy = -1;
result = Vfirst(&curmode, &listedmode);
if (result==0) {
while (result==0) {
/* Don't add modes with virtual screen */
if ((listedmode.mode & CSCREEN_VIRTUAL)==0) {
/* Don't add modes with bpp<8 */
if (listedmode.plan>=8) {
SDL_XBIOS_AddMode(this, listedmode.mode, listedmode.physx,
listedmode.physy, listedmode.plan, SDL_FALSE
);
}
}
SDL_memcpy(&curmode, &listedmode, sizeof(centscreen_mode_t));
curmode.mode = curmode.physx = curmode.physy = curmode.plan =
curmode.logx = curmode.logy = -1;
result = Vnext(&curmode, &listedmode);
}
} else {
fprintf(stderr, "No suitable Centscreen modes\n");
}
return cur_handle;
}
