void SCR_CheckDefaultMode(void)
{
INT32 scr_forcex, scr_forcey; // resolution asked from the cmd-line
if (dedicated)
return;
// 0 means not set at the cmd-line
scr_forcex = scr_forcey = 0;
if (M_CheckParm("-width") && M_IsNextParm())
scr_forcex = atoi(M_GetNextParm());
if (M_CheckParm("-height") && M_IsNextParm())
scr_forcey = atoi(M_GetNextParm());
if (scr_forcex && scr_forcey)
{
CONS_Printf(M_GetText("Using resolution: %d x %d\n"), scr_forcex, scr_forcey);
// returns -1 if not found, thus will be 0 (no mode change) if not found
setmodeneeded = VID_GetModeForSize(scr_forcex, scr_forcey) + 1;
}
else
{
CONS_Printf(M_GetText("Default resolution: %d x %d (%d bits)\n"), cv_scr_width.value,
cv_scr_height.value, cv_scr_depth.value);
// see note above
setmodeneeded = VID_GetModeForSize(cv_scr_width.value, cv_scr_height.value) + 1;
}
}
// return a video mode number from the dimensions
// returns any available video mode if the mode was not found
INT32 VID_GetModeForSize(INT32 w, INT32 h)
{
vmode_t *pv = pvidmodes;
int modenum;
// skip windowed modes
for (modenum = 0; pv && modenum < NUMSPECIALMODES; modenum++)
pv = pv->pnext;
// try fullscreen modes
for (modenum = NUMSPECIALMODES; pv; pv = pv->pnext, modenum++)
if (pv->width == (unsigned)w && pv->height == (unsigned)h)
return modenum;
// didn't find full-screen mode; try windowed
for (pv = pvidmodes, modenum = 0; pv && modenum < NUMSPECIALMODES; pv = pv->pnext, modenum++)
if (pv->width == (unsigned)w && pv->height == (unsigned)h)
return modenum;
// if not found, return the first mode available,
// preferably a full screen mode (all modes after the 'specialmodes')
if (numvidmodes > NUMSPECIALMODES)
{
// Try default video mode first
if (w != cv_scr_width.value || h != cv_scr_height.value)
return VID_GetModeForSize(cv_scr_width.value, cv_scr_height.value);
return NUMSPECIALMODES; // use first full screen mode
}
return 0; // no fullscreen mode, use windowed mode
}
// Change fullscreen on/off according to cv_fullscreen
void SCR_ChangeFullscreen(void)
{
#ifdef DIRECTFULLSCREEN
// allow_fullscreen is set by VID_PrepareModeList
// it is used to prevent switching to fullscreen during startup
if (!allow_fullscreen)
return;
if (graphics_started)
{
VID_PrepareModeList();
setmodeneeded = VID_GetModeForSize(vid.width, vid.height) + 1;
}
return;
#endif
}
