/*
===================
GLW_ChangeDislaySettingsIfNeeded
Optionally ChangeDisplaySettings to get a different fullscreen resolution.
Default uses the full desktop resolution.
===================
*/
static bool GLW_ChangeDislaySettingsIfNeeded( glimpParms_t parms ) {
// If we had previously changed the display settings on a different monitor,
// go back to standard.
if ( win32.cdsFullscreen != 0 && win32.cdsFullscreen != parms.fullScreen ) {
win32.cdsFullscreen = 0;
ChangeDisplaySettings( 0, 0 );
Sys_Sleep( 1000 ); // Give the driver some time to think about this change
}
// 0 is dragable mode on desktop, -1 is borderless window on desktop
if ( parms.fullScreen <= 0 ) {
return true;
}
// if we are already in the right resolution, don't do a ChangeDisplaySettings
int x, y, width, height, displayHz;
if ( !GetDisplayCoordinates( parms.fullScreen - 1, x, y, width, height, displayHz ) ) {
return false;
}
if ( width == parms.width && height == parms.height && ( displayHz == parms.displayHz || parms.displayHz == 0 ) ) {
return true;
}
DEVMODE dm = {};
dm.dmSize = sizeof( dm );
dm.dmPelsWidth = parms.width;
dm.dmPelsHeight = parms.height;
dm.dmBitsPerPel = 32;
dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;
if ( parms.displayHz != 0 ) {
dm.dmDisplayFrequency = parms.displayHz;
dm.dmFields |= DM_DISPLAYFREQUENCY;
}
common->Printf( "...calling CDS: " );
const char * const deviceName = GetDisplayName( parms.fullScreen - 1 );
int cdsRet;
if ( ( cdsRet = ChangeDisplaySettingsEx(
deviceName,
&dm,
NULL,
CDS_FULLSCREEN,
NULL) ) == DISP_CHANGE_SUCCESSFUL ) {
common->Printf( "ok\n" );
win32.cdsFullscreen = parms.fullScreen;
return true;
}
common->Printf( "^3failed^0, " );
PrintCDSError( cdsRet );
return false;
}
/*
====================
GLW_GetWindowDimensions
====================
*/
static bool GLW_GetWindowDimensions( const glimpParms_t parms, int& x, int& y, int& w, int& h )
{
//
// compute width and height
//
if( parms.fullScreen != 0 )
{
if( parms.fullScreen == -1 )
{
// borderless window at specific location, as for spanning
// multiple monitor outputs
x = parms.x;
y = parms.y;
w = parms.width;
h = parms.height;
}
else
{
// get the current monitor position and size on the desktop, assuming
// any required ChangeDisplaySettings has already been done
int displayHz = 0;
if( !GetDisplayCoordinates( parms.fullScreen - 1, x, y, w, h, displayHz ) )
{
return false;
}
}
}
else
{
RECT r;
// adjust width and height for window border
r.bottom = parms.height;
r.left = 0;
r.top = 0;
r.right = parms.width;
AdjustWindowRect( &r, WINDOW_STYLE | WS_SYSMENU, FALSE );
w = r.right - r.left;
h = r.bottom - r.top;
x = parms.x;
y = parms.y;
}
return true;
}