newtree/source/vid_mgl.c

/*
	vid_mgl.c

	Win32 Scitech MGL video driver

	Copyright (C) 1996-1997  Id Software, Inc.

	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

	See the GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to:

		Free Software Foundation, Inc.
		59 Temple Place - Suite 330
		Boston, MA  02111-1307, USA

	$Id$
*/

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <stdlib.h>

#include "cdaudio.h"
#include "cmd.h"
#include "console.h"
#include "d_local.h"
#include "draw.h"
#include "host.h"
#include "in_win.h"
#include "keys.h"
#include "qargs.h"
#include "qendian.h"
#include "resource.h"
#include "screen.h"
#include "sound.h"
#include "sys.h"
#include "va.h"
#include "wad.h"
#include "winquake.h"

#define	MINIMUM_MEMORY	0x550000

#define MAX_MODE_LIST	30
#define VID_ROW_SIZE	3

extern void (*vid_menudrawfn) (void);
extern void (*vid_menukeyfn) (int);

/* Unused */
int         VGA_width, VGA_height, VGA_rowbytes, VGA_bufferrowbytes, VGA_planar;
byte       *VGA_pagebase;

qboolean    dibonly;

extern qboolean Minimized;

HWND        mainwindow;

HWND WINAPI InitializeWindow (HINSTANCE hInstance, int nCmdShow);

int         DIBWidth, DIBHeight;
qboolean    DDActive;
RECT        WindowRect;
DWORD       WindowStyle, ExWindowStyle;

int         window_center_x, window_center_y, window_x, window_y, window_width,

	window_height;
RECT        window_rect;

static DEVMODE gdevmode;
static qboolean startwindowed = 0, windowed_mode_set = 0;
static int  firstupdate = 1;
static qboolean vid_initialized = false, vid_palettized;
static int  lockcount;
static int  vid_fulldib_on_focus_mode;
static qboolean force_minimized, in_mode_set, is_mode0x13, force_mode_set;
static int  vid_stretched, windowed_mouse;
static qboolean palette_changed, syscolchg, vid_mode_set, hide_window,

	pal_is_nostatic;
static HICON hIcon;

extern viddef_t vid;					// global video state

#define MODE_WINDOWED			0
#define MODE_SETTABLE_WINDOW	2
#define NO_MODE					(MODE_WINDOWED - 1)
#define MODE_FULLSCREEN_DEFAULT	(MODE_WINDOWED + 3)

// Note that 0 is MODE_WINDOWED
cvar_t     *vid_mode;

// Note that 0 is MODE_WINDOWED
// Note that 3 is MODE_FULLSCREEN_DEFAULT
cvar_t     *_vid_default_mode_win;
cvar_t     *vid_nopageflip;
cvar_t     *vid_config_x;
cvar_t     *vid_config_y;
cvar_t     *vid_stretch_by_2;
cvar_t     *_windowed_mouse;
cvar_t     *vid_fullscreen_mode;
cvar_t     *vid_windowed_mode;
cvar_t     *block_switch;
cvar_t     *vid_window_x;
cvar_t     *vid_window_y;

typedef struct {
	int         width;
	int         height;
} lmode_t;

lmode_t     lowresmodes[] = {
	{320, 200},
	{320, 240},
	{400, 300},
	{512, 384},
};

int         vid_modenum = NO_MODE;
int         vid_testingmode, vid_realmode;
double      vid_testendtime;
int         vid_default = MODE_WINDOWED;
static int  windowed_default;

modestate_t modestate = MS_UNINIT;

static byte *vid_surfcache;
static int  vid_surfcachesize;
static int  VID_highhunkmark;

unsigned char vid_curpal[256 * 3];

unsigned short d_8to16table[256];
unsigned int d_8to24table[256];

int         driver = grDETECT, mode;
qboolean    useWinDirect = true, useDirectDraw = true;
MGLDC      *mgldc = NULL, *memdc = NULL, *dibdc = NULL, *windc = NULL;

typedef struct {
	modestate_t type;
	int         width;
	int         height;
	int         modenum;
	int         mode13;
	int         stretched;
	int         dib;
	int         fullscreen;
	int         bpp;
	int         halfscreen;
	char        modedesc[13];
} vmode_t;

static vmode_t modelist[MAX_MODE_LIST];
static int  nummodes;

int         aPage;						// Current active display page
int         vPage;						// Current visible display page
int         waitVRT = true;				// True to wait for retrace on flip

static vmode_t badmode;

static byte backingbuf[48 * 24];

void        VID_MenuDraw (void);
void        VID_MenuKey (int key);

LONG WINAPI MainWndProc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
void        AppActivate (BOOL fActive, BOOL minimize);

/*
================
VID_RememberWindowPos
================
*/
void
VID_RememberWindowPos (void)
{
	RECT        rect;

	if (GetWindowRect (mainwindow, &rect)) {
		if ((rect.left < GetSystemMetrics (SM_CXSCREEN)) &&
			(rect.top < GetSystemMetrics (SM_CYSCREEN)) &&
			(rect.right > 0) && (rect.bottom > 0)) {
			Cvar_SetValue (vid_window_x, rect.left);
			Cvar_SetValue (vid_window_y, rect.top);
		}
	}
}


/*
================
VID_CheckWindowXY
================
*/
void
VID_CheckWindowXY (void)
{

	if ((vid_window_x->int_val > (GetSystemMetrics (SM_CXSCREEN) - 160)) ||
		(vid_window_y->int_val > (GetSystemMetrics (SM_CYSCREEN) - 120)) ||
		(vid_window_x->int_val < 0) || (vid_window_y->int_val < 0)) {
		Cvar_SetValue (vid_window_x, 0.0);
		Cvar_SetValue (vid_window_y, 0.0);
	}
}


/*
================
VID_UpdateWindowStatus
================
*/
void
VID_UpdateWindowStatus (void)
{

	window_rect.left = window_x;
	window_rect.top = window_y;
	window_rect.right = window_x + window_width;
	window_rect.bottom = window_y + window_height;
	window_center_x = (window_rect.left + window_rect.right) / 2;
	window_center_y = (window_rect.top + window_rect.bottom) / 2;

	IN_UpdateClipCursor ();
}


extern void CL_ClearStates ();

/*
================
ClearAllStates
================
*/
void
ClearAllStates (void)
{
	CL_ClearStates ();
	Key_ClearStates ();
	IN_ClearStates ();
}


/*
================
VID_CheckAdequateMem
================
*/
qboolean
VID_CheckAdequateMem (int width, int height)
{
	return true;
}


/*

	VID_AllocBuffers

*/
qboolean
VID_AllocBuffers (int width, int height)
{
	int         zbuffersize, cachesize;

	// Calculate the sizes we want first

	zbuffersize = width * height * sizeof (*d_pzbuffer);
	cachesize = D_SurfaceCacheForRes (width, height);

	// Free the old z-buffer
	if (d_pzbuffer) {
		free (d_pzbuffer);
		d_pzbuffer = NULL;
	}
	// Free the old surface cache
	vid_surfcache = D_SurfaceCacheAddress ();

	if (vid_surfcache) {
		D_FlushCaches ();
		free (vid_surfcache);
		vid_surfcache = NULL;
	}
	// Allocate the new z-buffer
	d_pzbuffer = calloc (zbuffersize, 1);
	if (!d_pzbuffer) {
		Sys_Error ("Not enough memory for video mode\n");
		return false;
	}
	// Allocate the new surface cache; free the z-buffer if we fail
	vid_surfcache = calloc (cachesize, 1);
	if (!vid_surfcache) {
		free (d_pzbuffer);
		d_pzbuffer = NULL;
		Sys_Error ("Not enough memory for video mode\n");
		return false;
	}
	vid_surfcachesize = cachesize;

	return true;
}


void
initFatalError (void)
{
	MGL_exit ();
	MGL_fatalError (MGL_errorMsg (MGL_result ()));
	exit (EXIT_FAILURE);
}

#if 0									// def NEW_SUSPEND

int
VID_Suspend (MGLDC * dc, int flags)
{
	int         i;

	if (flags & MGL_DEACTIVATE) {
		IN_RestoreOriginalMouseState ();
		CDAudio_Pause ();

		// keep WM_PAINT from trying to redraw
		in_mode_set = true;
		block_drawing = true;
	} else if (flags & MGL_REACTIVATE) {
		IN_SetQuakeMouseState ();
		// fix the leftover Alt from any Alt-Tab or the like that switched us 
		// away
		ClearAllStates ();
		CDAudio_Resume ();
		in_mode_set = false;

		block_drawing = false;
//      vid.recalc_refdef = 1;
		force_mode_set = 1;
		i = msg_suppress_1;
		msg_suppress_1 = 1;
		VID_Fullscreen_f ();
		msg_suppress_1 = i;
		force_mode_set = 0;
	}

	return 1;
}

#else

int
VID_Suspend (MGLDC * dc, int flags)
{

	if (flags & MGL_DEACTIVATE) {
		// FIXME: this doesn't currently work on NT
		if (block_switch->int_val && !WinNT) {
			return MGL_NO_DEACTIVATE;
		}

		S_BlockSound ();
		S_ClearBuffer ();

		IN_RestoreOriginalMouseState ();
		CDAudio_Pause ();

		// keep WM_PAINT from trying to redraw
		in_mode_set = true;

		block_drawing = true;			// so we don't try to draw while
										// switched away
	} else if (flags & MGL_REACTIVATE) {
		IN_SetQuakeMouseState ();
		// fix the leftover Alt from any Alt-Tab or the like that switched us 
		// away
		ClearAllStates ();
		CDAudio_Resume ();
		S_UnblockSound ();

		in_mode_set = false;

		vid.recalc_refdef = 1;

		block_drawing = false;
	}

	return MGL_NO_SUSPEND_APP;
}
#endif


void
registerAllDispDrivers (void)
{
	/* Event though these driver require WinDirect, we register * them so
	   that they will still be available even if DirectDraw * is present and
	   the user has disable the high performance * WinDirect modes. */
	MGL_registerDriver (MGL_VGA8NAME, VGA8_driver);
//  MGL_registerDriver(MGL_VGAXNAME,VGAX_driver);

	/* Register display drivers */
	if (useWinDirect) {
//we don't want VESA 1.X drivers        MGL_registerDriver(MGL_SVGA8NAME,SVGA8_driver);
		MGL_registerDriver (MGL_LINEAR8NAME, LINEAR8_driver);

		if (!COM_CheckParm ("-novbeaf"))
			MGL_registerDriver (MGL_ACCEL8NAME, ACCEL8_driver);
	}

	if (useDirectDraw) {
		MGL_registerDriver (MGL_DDRAW8NAME, DDRAW8_driver);
	}
}


void
registerAllMemDrivers (void)
{
	/* Register memory context drivers */
	MGL_registerDriver (MGL_PACKED8NAME, PACKED8_driver);
}


void
VID_InitMGLFull (HINSTANCE hInstance)
{
	int         i, xRes, yRes, bits, lowres, curmode, temp;
	int         lowstretchedres, stretchedmode = 0, lowstretched;
	uchar      *m;

// FIXME: NT is checked for because MGL currently has a bug that causes it
// to try to use WinDirect modes even on NT
	if (COM_CheckParm ("-nowindirect") ||
		COM_CheckParm ("-nowd") || COM_CheckParm ("-novesa") || WinNT) {
		useWinDirect = false;
	}

	if (COM_CheckParm ("-nodirectdraw") || COM_CheckParm ("-noddraw")
		|| COM_CheckParm ("-nodd"))
		useDirectDraw = false;

	// Initialise the MGL
	MGL_unregisterAllDrivers ();
	registerAllDispDrivers ();
	registerAllMemDrivers ();
	MGL_detectGraph (&driver, &mode);
	m = MGL_availableModes ();

	if (m[0] != 0xFF) {
		lowres = lowstretchedres = 99999;
		lowstretched = 0;
		curmode = 0;

		// find the lowest-res mode, or a mode we can stretch up to and get
		// lowest-res that way
		for (i = 0; m[i] != 0xFF; i++) {
			MGL_modeResolution (m[i], &xRes, &yRes, &bits);

			if ((bits == 8) &&
				(xRes <= MAXWIDTH) &&
				(yRes <= MAXHEIGHT) && (curmode < MAX_MODE_LIST)) {
				if (m[i] == grVGA_320x200x256)
					is_mode0x13 = true;

				if (!COM_CheckParm ("-noforcevga")) {
					if (m[i] == grVGA_320x200x256) {
						mode = i;
						break;
					}
				}

				if (xRes < lowres) {
					lowres = xRes;
					mode = i;
				}

				if ((xRes < lowstretchedres) && ((xRes >> 1) >= 320)) {
					lowstretchedres = xRes >> 1;
					stretchedmode = i;
				}
			}

			curmode++;
		}

		// if there's a mode we can stretch by 2 up to, thereby effectively
		// getting
		// a lower-res mode than the lowest-res real but still at least
		// 320x200, that
		// will be our default mode
		if (lowstretchedres < lowres) {
			mode = stretchedmode;
			lowres = lowstretchedres;
			lowstretched = 1;
		}
		// build the mode list, leaving room for the low-res stretched mode,
		// if any
		nummodes++;						// leave room for default mode

		for (i = 0; m[i] != 0xFF; i++) {
			MGL_modeResolution (m[i], &xRes, &yRes, &bits);

			if ((bits == 8) &&
				(xRes <= MAXWIDTH) &&
				(yRes <= MAXHEIGHT) && (nummodes < MAX_MODE_LIST)) {
				if (i == mode) {
					if (lowstretched) {
						stretchedmode = nummodes;
						curmode = nummodes++;
					} else {
						curmode = MODE_FULLSCREEN_DEFAULT;
					}
				} else {
					curmode = nummodes++;
				}

				modelist[curmode].type = MS_FULLSCREEN;
				modelist[curmode].width = xRes;
				modelist[curmode].height = yRes;
				snprintf (modelist[curmode].modedesc,
						  sizeof (modelist[curmode].modedesc), "%dx%d", xRes,
						  yRes);

				if (m[i] == grVGA_320x200x256)
					modelist[curmode].mode13 = 1;
				else
					modelist[curmode].mode13 = 0;

				modelist[curmode].modenum = m[i];
				modelist[curmode].stretched = 0;
				modelist[curmode].dib = 0;
				modelist[curmode].fullscreen = 1;
				modelist[curmode].halfscreen = 0;
				modelist[curmode].bpp = 8;
			}
		}

		if (lowstretched) {
			modelist[MODE_FULLSCREEN_DEFAULT] = modelist[stretchedmode];
			modelist[MODE_FULLSCREEN_DEFAULT].stretched = 1;
			modelist[MODE_FULLSCREEN_DEFAULT].width >>= 1;
			modelist[MODE_FULLSCREEN_DEFAULT].height >>= 1;
			snprintf (modelist[MODE_FULLSCREEN_DEFAULT].modedesc,
					  sizeof (modelist[MODE_FULLSCREEN_DEFAULT].modedesc),
					  "%dx%d", modelist[MODE_FULLSCREEN_DEFAULT].width,
					  modelist[MODE_FULLSCREEN_DEFAULT].height);
		}

		vid_default = MODE_FULLSCREEN_DEFAULT;

		temp = m[0];

		if (!MGL_init (&driver, &temp, "")) {
			initFatalError ();
		}
	}

	MGL_setSuspendAppCallback (VID_Suspend);
}


MGLDC      *
createDisplayDC (int forcemem)
/****************************************************************************
*
* Function:     createDisplayDC
* Returns:      Pointer to the MGL device context to use for the application
*
* Description:  Initialises the MGL and creates an appropriate display
*               device context to be used by the GUI. This creates and
*               apropriate device context depending on the system being
*               compile for, and should be the only place where system
*               specific code is required.
*
****************************************************************************/
{
	MGLDC      *dc;
	pixel_format_t pf;
	int         npages;

	// Start the specified video mode
	if (!MGL_changeDisplayMode (mode))
		initFatalError ();

	npages = MGL_availablePages (mode);

	if (npages > 3)
		npages = 3;

	if (!COM_CheckParm ("-notriplebuf")) {
		if (npages > 2) {
			npages = 2;
		}
	}

	if ((dc = MGL_createDisplayDC (npages)) == NULL)
		return NULL;

	if (!forcemem && (MGL_surfaceAccessType (dc)) == MGL_LINEAR_ACCESS
		&& (dc->mi.maxPage > 0)) {
		MGL_makeCurrentDC (dc);
		memdc = NULL;
	} else {
		// Set up for blitting from a memory buffer
		memdc =
			MGL_createMemoryDC (MGL_sizex (dc) + 1, MGL_sizey (dc) + 1, 8, &pf);
		MGL_makeCurrentDC (memdc);
	}

	// Enable page flipping even for even for blitted surfaces
	if (forcemem) {
		vid.numpages = 1;
	} else {
		vid.numpages = dc->mi.maxPage + 1;

		if (vid.numpages > 1) {
			// Set up for page flipping
			MGL_setActivePage (dc, aPage = 1);
			MGL_setVisualPage (dc, vPage = 0, false);
		}

		if (vid.numpages > 3)
			vid.numpages = 3;
	}

	if (vid.numpages == 2)
		waitVRT = true;
	else
		waitVRT = false;

	return dc;
}


void
VID_InitMGLDIB (HINSTANCE hInstance)
{
	WNDCLASS    wc;
	HDC         hdc;

	hIcon = LoadIcon (hInstance, MAKEINTRESOURCE (IDI_ICON1));

	/* Register the frame class */
	wc.style = 0;
	wc.lpfnWndProc = (WNDPROC) MainWndProc;
	wc.cbClsExtra = 0;
	wc.cbWndExtra = 0;
	wc.hInstance = hInstance;
	wc.hIcon = 0;
	wc.hCursor = LoadCursor (NULL, IDC_ARROW);
	wc.hbrBackground = NULL;
	wc.lpszMenuName = 0;
	wc.lpszClassName = "WinQuake";

	if (!RegisterClass (&wc))
		Sys_Error ("Couldn't register window class");

	/* Find the size for the DIB window */
	/* Initialise the MGL for windowed operation */
	MGL_setAppInstance (hInstance);
	registerAllMemDrivers ();
	MGL_initWindowed ("");

	modelist[0].type = MS_WINDOWED;
	modelist[0].width = 320;
	modelist[0].height = 240;
	strcpy (modelist[0].modedesc, "320x240");
	modelist[0].mode13 = 0;
	modelist[0].modenum = MODE_WINDOWED;
	modelist[0].stretched = 0;
	modelist[0].dib = 1;
	modelist[0].fullscreen = 0;
	modelist[0].halfscreen = 0;
	modelist[0].bpp = 8;

	modelist[1].type = MS_WINDOWED;
	modelist[1].width = 640;
	modelist[1].height = 480;
	strcpy (modelist[1].modedesc, "640x480");
	modelist[1].mode13 = 0;
	modelist[1].modenum = MODE_WINDOWED + 1;
	modelist[1].stretched = 1;
	modelist[1].dib = 1;
	modelist[1].fullscreen = 0;
	modelist[1].halfscreen = 0;
	modelist[1].bpp = 8;

	modelist[2].type = MS_WINDOWED;
	modelist[2].width = 800;
	modelist[2].height = 600;
	strcpy (modelist[2].modedesc, "800x600");
	modelist[2].mode13 = 0;
	modelist[2].modenum = MODE_WINDOWED + 2;
	modelist[2].stretched = 1;
	modelist[2].dib = 1;
	modelist[2].fullscreen = 0;
	modelist[2].halfscreen = 0;
	modelist[2].bpp = 8;

// automatically stretch the default mode up if > 640x480 desktop resolution
	hdc = GetDC (NULL);

	if ((GetDeviceCaps (hdc, HORZRES) > 640)
		&& !COM_CheckParm ("-noautostretch")) {
		vid_default = MODE_WINDOWED + 1;
	} else {
		vid_default = MODE_WINDOWED;
	}

	windowed_default = vid_default;

	ReleaseDC (NULL, hdc);

	nummodes = 3;						// reserve space for windowed mode

	DDActive = 0;
}


/*
=================
VID_InitFullDIB
=================
*/
void
VID_InitFullDIB (HINSTANCE hInstance)
{
	DEVMODE     devmode;
	int         i, j, modenum, existingmode, originalnummodes, lowestres;
	int         numlowresmodes, bpp, done;
	int         cstretch, istretch, mstretch = 0;
	BOOL        stat;

// enumerate 8 bpp modes
	originalnummodes = nummodes;
	modenum = 0;
	lowestres = 99999;

	do {
		stat = EnumDisplaySettings (NULL, modenum, &devmode);

		if ((devmode.dmBitsPerPel == 8) &&
			(devmode.dmPelsWidth <= MAXWIDTH) &&
			(devmode.dmPelsHeight <= MAXHEIGHT) && (nummodes < MAX_MODE_LIST)) {
			devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;

			if (ChangeDisplaySettings (&devmode, CDS_TEST | CDS_FULLSCREEN) ==
				DISP_CHANGE_SUCCESSFUL) {
				modelist[nummodes].type = MS_FULLDIB;
				modelist[nummodes].width = devmode.dmPelsWidth;
				modelist[nummodes].height = devmode.dmPelsHeight;
				modelist[nummodes].modenum = 0;
				modelist[nummodes].mode13 = 0;
				modelist[nummodes].stretched = 0;
				modelist[nummodes].halfscreen = 0;
				modelist[nummodes].dib = 1;
				modelist[nummodes].fullscreen = 1;
				modelist[nummodes].bpp = devmode.dmBitsPerPel;
				snprintf (modelist[nummodes].modedesc,
						  sizeof (modelist[nummodes].modedesc), "%ldx%ld",
						  devmode.dmPelsWidth, devmode.dmPelsHeight);

				// if the width is more than twice the height, reduce it by
				// half because this
				// is probably a dual-screen monitor
				if (!COM_CheckParm ("-noadjustaspect")) {
					if (modelist[nummodes].width >
						(modelist[nummodes].height << 1)) {
						modelist[nummodes].width >>= 1;
						modelist[nummodes].halfscreen = 1;
						snprintf (modelist[nummodes].modedesc,
								  sizeof (modelist[nummodes].modedesc), "%dx%d",
								  modelist[nummodes].width,
								  modelist[nummodes].height);
					}
				}

				for (i = originalnummodes, existingmode = 0; i < nummodes; i++) {
					if ((modelist[nummodes].width == modelist[i].width) &&
						(modelist[nummodes].height == modelist[i].height)) {
						existingmode = 1;
						break;
					}
				}

				if (!existingmode) {
					if (modelist[nummodes].width < lowestres)
						lowestres = modelist[nummodes].width;

					nummodes++;
				}
			}
		}

		modenum++;
	} while (stat);

// see if any of them were actually settable; if so, this is our mode list,
// else enumerate all modes; our mode list is whichever ones are settable
// with > 8 bpp
	if (nummodes == originalnummodes) {
		modenum = 0;
		lowestres = 99999;

		Con_Printf ("No 8-bpp fullscreen DIB modes found\n");

		do {
			stat = EnumDisplaySettings (NULL, modenum, &devmode);

			if ((((devmode.dmPelsWidth <= MAXWIDTH) &&
				  (devmode.dmPelsHeight <= MAXHEIGHT)) ||
				 (!COM_CheckParm ("-noadjustaspect") &&
				  (devmode.dmPelsWidth <= (MAXWIDTH * 2)) &&
				  (devmode.dmPelsWidth > (devmode.dmPelsHeight * 2)))) &&
				(nummodes < MAX_MODE_LIST) && (devmode.dmBitsPerPel > 8)) {
				devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;

				if (ChangeDisplaySettings (&devmode, CDS_TEST | CDS_FULLSCREEN)
					== DISP_CHANGE_SUCCESSFUL) {
					modelist[nummodes].type = MS_FULLDIB;
					modelist[nummodes].width = devmode.dmPelsWidth;
					modelist[nummodes].height = devmode.dmPelsHeight;
					modelist[nummodes].modenum = 0;
					modelist[nummodes].mode13 = 0;
					modelist[nummodes].stretched = 0;
					modelist[nummodes].halfscreen = 0;
					modelist[nummodes].dib = 1;
					modelist[nummodes].fullscreen = 1;
					modelist[nummodes].bpp = devmode.dmBitsPerPel;
					snprintf (modelist[nummodes].modedesc,
							  sizeof (modelist[nummodes].modedesc), "%ldx%ld",
							  devmode.dmPelsWidth, devmode.dmPelsHeight);

					// if the width is more than twice the height, reduce it
					// by half because this
					// is probably a dual-screen monitor
					if (!COM_CheckParm ("-noadjustaspect")) {
						if (modelist[nummodes].width >
							(modelist[nummodes].height * 2)) {
							modelist[nummodes].width >>= 1;
							modelist[nummodes].halfscreen = 1;
							snprintf (modelist[nummodes].modedesc,
									  sizeof (modelist[nummodes].modedesc),
									  "%dx%d", modelist[nummodes].width,
									  modelist[nummodes].height);
						}
					}

					for (i = originalnummodes, existingmode = 0; i < nummodes;
						 i++) {
						if ((modelist[nummodes].width == modelist[i].width)
							&& (modelist[nummodes].height ==
								modelist[i].height)) {
							// pick the lowest available bpp
							if (modelist[nummodes].bpp < modelist[i].bpp)
								modelist[i] = modelist[nummodes];

							existingmode = 1;
							break;
						}
					}

					if (!existingmode) {
						if (modelist[nummodes].width < lowestres)
							lowestres = modelist[nummodes].width;

						nummodes++;
					}
				}
			}

			modenum++;
		} while (stat);
	}
// see if there are any low-res modes that aren't being reported
	numlowresmodes = sizeof (lowresmodes) / sizeof (lowresmodes[0]);
	bpp = 8;
	done = 0;

// first make sure the driver doesn't just answer yes to all tests
	devmode.dmBitsPerPel = 8;
	devmode.dmPelsWidth = 42;
	devmode.dmPelsHeight = 37;
	devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;

	if (ChangeDisplaySettings (&devmode, CDS_TEST | CDS_FULLSCREEN) ==
		DISP_CHANGE_SUCCESSFUL) {
		done = 1;
	}

	while (!done) {
		for (j = 0; (j < numlowresmodes) && (nummodes < MAX_MODE_LIST); j++) {
			devmode.dmBitsPerPel = bpp;
			devmode.dmPelsWidth = lowresmodes[j].width;
			devmode.dmPelsHeight = lowresmodes[j].height;
			devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;

			if (ChangeDisplaySettings (&devmode, CDS_TEST | CDS_FULLSCREEN) ==
				DISP_CHANGE_SUCCESSFUL) {
				modelist[nummodes].type = MS_FULLDIB;
				modelist[nummodes].width = devmode.dmPelsWidth;
				modelist[nummodes].height = devmode.dmPelsHeight;
				modelist[nummodes].modenum = 0;
				modelist[nummodes].mode13 = 0;
				modelist[nummodes].stretched = 0;
				modelist[nummodes].halfscreen = 0;
				modelist[nummodes].dib = 1;
				modelist[nummodes].fullscreen = 1;
				modelist[nummodes].bpp = devmode.dmBitsPerPel;
				snprintf (modelist[nummodes].modedesc,
						  sizeof (modelist[nummodes].modedesc), "%ldx%ld",
						  devmode.dmPelsWidth, devmode.dmPelsHeight);

				// we only want the lowest-bpp version of each mode
				for (i = originalnummodes, existingmode = 0; i < nummodes; i++) {
					if ((modelist[nummodes].width == modelist[i].width) &&
						(modelist[nummodes].height == modelist[i].height) &&
						(modelist[nummodes].bpp >= modelist[i].bpp)) {
						existingmode = 1;
						break;
					}
				}

				if (!existingmode) {
					if (modelist[nummodes].width < lowestres)
						lowestres = modelist[nummodes].width;

					nummodes++;
				}
			}
		}

		switch (bpp) {
			case 8:
				bpp = 16;
				break;

			case 16:
				bpp = 32;
				break;

			case 32:
				done = 1;
				break;
		}
	}

// now add the lowest stretch-by-2 pseudo-modes between 320-wide
// (inclusive) and lowest real res (not inclusive)
// don't bother if we have a real VGA mode 0x13 mode
	if (!is_mode0x13) {
		for (i = originalnummodes, cstretch = 0; i < nummodes; i++) {
			if (((modelist[i].width >> 1) < lowestres) &&
				((modelist[i].width >> 1) >= 320)) {
				lowestres = modelist[i].width >> 1;
				cstretch = 1;
				mstretch = i;
			}
		}

		if ((nummodes + cstretch) > MAX_MODE_LIST)
			cstretch = MAX_MODE_LIST - nummodes;

		if (cstretch > 0) {
			for (i = (nummodes - 1); i >= originalnummodes; i--)
				modelist[i + cstretch] = modelist[i];

			nummodes += cstretch;
			istretch = originalnummodes;

			modelist[istretch] = modelist[mstretch];
			modelist[istretch].width >>= 1;
			modelist[istretch].height >>= 1;
			modelist[istretch].stretched = 1;
			snprintf (modelist[istretch].modedesc,
					  sizeof (modelist[istretch].modedesc), "%dx%d",
					  modelist[istretch].width, modelist[istretch].height);
		}
	}

	if (nummodes != originalnummodes)
		vid_default = MODE_FULLSCREEN_DEFAULT;
	else
		Con_Printf ("No fullscreen DIB modes found\n");
}


/*
=================
VID_NumModes
=================
*/
int
VID_NumModes (void)
{
	return nummodes;
}


/*
=================
VID_GetModePtr
=================
*/
vmode_t    *
VID_GetModePtr (int modenum)
{

	if ((modenum >= 0) && (modenum < nummodes))
		return &modelist[modenum];
	else
		return &badmode;
}


/*
=================
VID_CheckModedescFixup
=================
*/
void
VID_CheckModedescFixup (int mode)
{
	int         x, y, stretch;

	if (mode == MODE_SETTABLE_WINDOW) {
		modelist[mode].stretched = vid_stretch_by_2->int_val;
		stretch = modelist[mode].stretched;

		Cvar_SetValue (vid_config_x,
					   max (vid_config_x->int_val, 320 << stretch));
		Cvar_SetValue (vid_config_y,
					   max (vid_config_y->int_val, 200 << stretch));

		x = vid_config_x->int_val;
		y = vid_config_y->int_val;
		snprintf (modelist[mode].modedesc, sizeof (modelist[mode].modedesc),
				  "%dx%d", x, y);
		modelist[mode].width = x;
		modelist[mode].height = y;
	}
}


/*
=================
VID_GetModeDescriptionMemCheck
=================
*/
char       *
VID_GetModeDescriptionMemCheck (int mode)
{
	char       *pinfo;
	vmode_t    *pv;

	if ((mode < 0) || (mode >= nummodes))
		return NULL;

	VID_CheckModedescFixup (mode);

	pv = VID_GetModePtr (mode);
	pinfo = pv->modedesc;

	if (VID_CheckAdequateMem (pv->width, pv->height)) {
		return pinfo;
	} else {
		return NULL;
	}
}


/*
=================
VID_GetModeDescription
=================
*/
char       *
VID_GetModeDescription (int mode)
{
	char       *pinfo;
	vmode_t    *pv;

	if ((mode < 0) || (mode >= nummodes))
		return NULL;

	VID_CheckModedescFixup (mode);

	pv = VID_GetModePtr (mode);
	pinfo = pv->modedesc;
	return pinfo;
}


/*
=================
VID_GetModeDescription2

Tacks on "windowed" or "fullscreen"
=================
*/
char       *
VID_GetModeDescription2 (int mode)
{
	static char pinfo[40];
	vmode_t    *pv;

	if ((mode < 0) || (mode >= nummodes))
		return NULL;

	VID_CheckModedescFixup (mode);

	pv = VID_GetModePtr (mode);

	if (modelist[mode].type == MS_FULLSCREEN) {
		snprintf (pinfo, sizeof (pinfo), "%s fullscreen", pv->modedesc);
	} else if (modelist[mode].type == MS_FULLDIB) {
		snprintf (pinfo, sizeof (pinfo), "%s fullscreen", pv->modedesc);
	} else {
		snprintf (pinfo, sizeof (pinfo), "%s windowed", pv->modedesc);
	}

	return pinfo;
}


// KJB: Added this to return the mode driver name in description for console

char       *
VID_GetExtModeDescription (int mode)
{
	static char pinfo[40];
	vmode_t    *pv;

	if ((mode < 0) || (mode >= nummodes))
		return NULL;

	VID_CheckModedescFixup (mode);

	pv = VID_GetModePtr (mode);
	if (modelist[mode].type == MS_FULLSCREEN) {
		snprintf (pinfo, sizeof (pinfo), "%s fullscreen %s", pv->modedesc,
				  MGL_modeDriverName (pv->modenum));
	} else if (modelist[mode].type == MS_FULLDIB) {
		snprintf (pinfo, sizeof (pinfo), "%s fullscreen DIB", pv->modedesc);
	} else {
		snprintf (pinfo, sizeof (pinfo), "%s windowed", pv->modedesc);
	}

	return pinfo;
}


void
DestroyDIBWindow (void)
{

	if (modestate == MS_WINDOWED) {
		// destroy the associated MGL DC's; the window gets reused
		if (windc)
			MGL_destroyDC (windc);
		if (dibdc)
			MGL_destroyDC (dibdc);
		windc = dibdc = NULL;
	}
}


void
DestroyFullscreenWindow (void)
{

	if (modestate == MS_FULLSCREEN) {
		// destroy the existing fullscreen mode and DC's
		if (mgldc)
			MGL_destroyDC (mgldc);
		if (memdc)
			MGL_destroyDC (memdc);
		mgldc = memdc = NULL;
	}
}



void
DestroyFullDIBWindow (void)
{
	if (modestate == MS_FULLDIB) {
		ChangeDisplaySettings (NULL, CDS_FULLSCREEN);

		// Destroy the fullscreen DIB window and associated MGL DC's
		if (windc)
			MGL_destroyDC (windc);
		if (dibdc)
			MGL_destroyDC (dibdc);
		windc = dibdc = NULL;
	}
}


qboolean
VID_SetWindowedMode (int modenum)
{
	HDC         hdc;
	pixel_format_t pf;
	qboolean    stretched;
	int         lastmodestate;

	if (!windowed_mode_set) {
		if (COM_CheckParm ("-resetwinpos")) {
			Cvar_SetValue (vid_window_x, 0.0);
			Cvar_SetValue (vid_window_y, 0.0);
		}

		windowed_mode_set = 1;
	}

	VID_CheckModedescFixup (modenum);

	DDActive = 0;
	lastmodestate = modestate;

	DestroyFullscreenWindow ();
	DestroyFullDIBWindow ();

	if (windc)
		MGL_destroyDC (windc);
	if (dibdc)
		MGL_destroyDC (dibdc);
	windc = dibdc = NULL;

// KJB: Signal to the MGL that we are going back to windowed mode
	if (!MGL_changeDisplayMode (grWINDOWED))
		initFatalError ();

	WindowRect.top = WindowRect.left = 0;

	WindowRect.right = modelist[modenum].width;
	WindowRect.bottom = modelist[modenum].height;
	stretched = modelist[modenum].stretched;

	DIBWidth = modelist[modenum].width;
	DIBHeight = modelist[modenum].height;

	if (stretched) {
		DIBWidth >>= 1;
		DIBHeight >>= 1;
	}

	WindowStyle = WS_OVERLAPPED | WS_BORDER | WS_CAPTION | WS_SYSMENU |
		WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
	ExWindowStyle = 0;
	AdjustWindowRectEx (&WindowRect, WindowStyle, FALSE, 0);

// the first time we're called to set the mode, create the window we'll use
// for the rest of the session
	if (!vid_mode_set) {
		mainwindow = CreateWindowEx (ExWindowStyle,
									 "WinQuake",
									 PROGRAM,
									 WindowStyle,
									 0, 0,
									 WindowRect.right - WindowRect.left,
									 WindowRect.bottom - WindowRect.top,
									 NULL, NULL, global_hInstance, NULL);

		if (!mainwindow)
			Sys_Error ("Couldn't create DIB window");

		// tell MGL to use this window for fullscreen modes
		MGL_registerFullScreenWindow (mainwindow);

		vid_mode_set = true;
	} else {
		SetWindowLong (mainwindow, GWL_STYLE, WindowStyle | WS_VISIBLE);
		SetWindowLong (mainwindow, GWL_EXSTYLE, ExWindowStyle);
	}

	if (!SetWindowPos (mainwindow,
					   NULL,
					   0, 0,
					   WindowRect.right - WindowRect.left,
					   WindowRect.bottom - WindowRect.top,
					   SWP_NOCOPYBITS | SWP_NOZORDER | SWP_HIDEWINDOW)) {
		Sys_Error ("Couldn't resize DIB window");
	}

	if (hide_window)
		return true;

// position and show the DIB window
	VID_CheckWindowXY ();
	SetWindowPos (mainwindow, NULL, vid_window_x->int_val,
				  vid_window_y->int_val, 0, 0,
				  SWP_NOSIZE | SWP_NOZORDER | SWP_SHOWWINDOW | SWP_DRAWFRAME);

	if (force_minimized)
		ShowWindow (mainwindow, SW_MINIMIZE);
	else
		ShowWindow (mainwindow, SW_SHOWDEFAULT);

	UpdateWindow (mainwindow);

	modestate = MS_WINDOWED;
	vid_fulldib_on_focus_mode = 0;

// because we have set the background brush for the window to NULL
// (to avoid flickering when re-sizing the window on the desktop),
// we clear the window to black when created, otherwise it will be
// empty while Quake starts up.
	hdc = GetDC (mainwindow);
	PatBlt (hdc, 0, 0, WindowRect.right, WindowRect.bottom, BLACKNESS);
	ReleaseDC (mainwindow, hdc);

	/* Create the MGL window DC and the MGL memory DC */
	if ((windc = MGL_createWindowedDC (mainwindow)) == NULL)
		MGL_fatalError ("Unable to create Windowed DC!");

	if ((dibdc = MGL_createMemoryDC (DIBWidth, DIBHeight, 8, &pf)) == NULL)
		MGL_fatalError ("Unable to create Memory DC!");

	MGL_makeCurrentDC (dibdc);

	vid.buffer = vid.conbuffer = vid.direct = dibdc->surface;
	vid.rowbytes = vid.conrowbytes = dibdc->mi.bytesPerLine;
	vid.numpages = 1;
	vid.maxwarpwidth = WARP_WIDTH;
	vid.maxwarpheight = WARP_HEIGHT;
	vid.height = vid.conheight = DIBHeight;
	vid.width = vid.conwidth = DIBWidth;
	vid.aspect = ((float) vid.height / (float) vid.width) * (320.0 / 240.0);

	vid_stretched = stretched;

	SendMessage (mainwindow, WM_SETICON, (WPARAM) TRUE, (LPARAM) hIcon);
	SendMessage (mainwindow, WM_SETICON, (WPARAM) FALSE, (LPARAM) hIcon);

	return true;
}


qboolean
VID_SetFullscreenMode (int modenum)
{

	DDActive = 1;

	DestroyDIBWindow ();
	DestroyFullDIBWindow ();

	mode = modelist[modenum].modenum;

	// Destroy old DC's, resetting back to fullscreen mode
	if (mgldc)
		MGL_destroyDC (mgldc);
	if (memdc)
		MGL_destroyDC (memdc);
	mgldc = memdc = NULL;

	if ((mgldc = createDisplayDC (modelist[modenum].stretched ||
								  vid_nopageflip->int_val)) == NULL) {
		return false;
	}

	modestate = MS_FULLSCREEN;
	vid_fulldib_on_focus_mode = 0;

	vid.buffer = vid.conbuffer = vid.direct = NULL;
	vid.maxwarpwidth = WARP_WIDTH;
	vid.maxwarpheight = WARP_HEIGHT;
	DIBHeight = vid.height = vid.conheight = modelist[modenum].height;
	DIBWidth = vid.width = vid.conwidth = modelist[modenum].width;
	vid.aspect = ((float) vid.height / (float) vid.width) * (320.0 / 240.0);

	vid_stretched = modelist[modenum].stretched;

// needed because we're not getting WM_MOVE messages fullscreen on NT
	window_x = 0;
	window_y = 0;

// set the large icon, so the Quake icon will show up in the taskbar
	SendMessage (mainwindow, WM_SETICON, (WPARAM) 1, (LPARAM) hIcon);
	SendMessage (mainwindow, WM_SETICON, (WPARAM) 0, (LPARAM) hIcon);

// shouldn't be needed, but Kendall needs to let us get the activation
// message for this not to be needed on NT
	AppActivate (true, false);

	return true;
}


qboolean
VID_SetFullDIBMode (int modenum)
{
	HDC         hdc;
	pixel_format_t pf;
	int         lastmodestate;

	DDActive = 0;

	DestroyFullscreenWindow ();
	DestroyDIBWindow ();

	if (windc)
		MGL_destroyDC (windc);
	if (dibdc)
		MGL_destroyDC (dibdc);
	windc = dibdc = NULL;

	// KJB: Signal to the MGL that we are going back to windowed mode
	if (!MGL_changeDisplayMode (grWINDOWED))
		initFatalError ();

	gdevmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
	gdevmode.dmBitsPerPel = modelist[modenum].bpp;
	gdevmode.dmPelsWidth =
		modelist[modenum].width << modelist[modenum].
		stretched << modelist[modenum].halfscreen;
	gdevmode.dmPelsHeight =
		modelist[modenum].height << modelist[modenum].stretched;
	gdevmode.dmSize = sizeof (gdevmode);

	if (ChangeDisplaySettings (&gdevmode, CDS_FULLSCREEN) !=
		DISP_CHANGE_SUCCESSFUL) Sys_Error ("Couldn't set fullscreen DIB mode");

	lastmodestate = modestate;
	modestate = MS_FULLDIB;
	vid_fulldib_on_focus_mode = modenum;

	WindowRect.top = WindowRect.left = 0;

	hdc = GetDC (NULL);

	WindowRect.right = modelist[modenum].width << modelist[modenum].stretched;
	WindowRect.bottom = modelist[modenum].height << modelist[modenum].stretched;

	ReleaseDC (NULL, hdc);

	DIBWidth = modelist[modenum].width;
	DIBHeight = modelist[modenum].height;

	WindowStyle = WS_POPUP | WS_SYSMENU | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
	ExWindowStyle = 0;
	AdjustWindowRectEx (&WindowRect, WindowStyle, FALSE, 0);

	SetWindowLong (mainwindow, GWL_STYLE, WindowStyle | WS_VISIBLE);
	SetWindowLong (mainwindow, GWL_EXSTYLE, ExWindowStyle);

	if (!SetWindowPos (mainwindow,
					   NULL,
					   0, 0,
					   WindowRect.right - WindowRect.left,
					   WindowRect.bottom - WindowRect.top,
					   SWP_NOCOPYBITS | SWP_NOZORDER)) {
		Sys_Error ("Couldn't resize DIB window");
	}
// position and show the DIB window
	SetWindowPos (mainwindow, HWND_TOPMOST, 0, 0, 0, 0,
				  SWP_NOSIZE | SWP_SHOWWINDOW | SWP_DRAWFRAME);
	ShowWindow (mainwindow, SW_SHOWDEFAULT);
	UpdateWindow (mainwindow);

	// Because we have set the background brush for the window to NULL
	// (to avoid flickering when re-sizing the window on the desktop), we
	// clear the window to black when created, otherwise it will be
	// empty while Quake starts up.
	hdc = GetDC (mainwindow);
	PatBlt (hdc, 0, 0, WindowRect.right, WindowRect.bottom, BLACKNESS);
	ReleaseDC (mainwindow, hdc);

	/* Create the MGL window DC and the MGL memory DC */
	if ((windc = MGL_createWindowedDC (mainwindow)) == NULL)
		MGL_fatalError ("Unable to create Fullscreen DIB DC!");

	if ((dibdc = MGL_createMemoryDC (DIBWidth, DIBHeight, 8, &pf)) == NULL)
		MGL_fatalError ("Unable to create Memory DC!");

	MGL_makeCurrentDC (dibdc);

	vid.buffer = vid.conbuffer = vid.direct = dibdc->surface;
	vid.rowbytes = vid.conrowbytes = dibdc->mi.bytesPerLine;
	vid.numpages = 1;
	vid.maxwarpwidth = WARP_WIDTH;
	vid.maxwarpheight = WARP_HEIGHT;
	vid.height = vid.conheight = DIBHeight;
	vid.width = vid.conwidth = DIBWidth;
	vid.aspect = ((float) vid.height / (float) vid.width) * (320.0 / 240.0);

	vid_stretched = modelist[modenum].stretched;

// needed because we're not getting WM_MOVE messages fullscreen on NT
	window_x = 0;
	window_y = 0;

	return true;
}


void
VID_RestoreOldMode (int original_mode)
{
	static qboolean inerror = false;

	if (inerror)
		return;

	in_mode_set = false;
	inerror = true;

// make sure mode set happens (video mode changes)
	vid_modenum = original_mode - 1;

	if (!VID_SetMode (original_mode, vid_curpal)) {
		vid_modenum = MODE_WINDOWED - 1;

		if (!VID_SetMode (windowed_default, vid_curpal))
			Sys_Error ("Can't set any video mode");
	}

	inerror = false;
}


void
VID_SetDefaultMode (void)
{

	if (vid_initialized)
		VID_SetMode (0, vid_curpal);

	IN_DeactivateMouse ();
}


int
VID_SetMode (int modenum, unsigned char *palette)
{
	int         original_mode, temp;
	qboolean    stat;
	MSG         msg;
	HDC         hdc;

	while ((modenum >= nummodes) || (modenum < 0)) {
		if (vid_modenum == NO_MODE) {
			if (modenum == vid_default) {
				modenum = windowed_default;
			} else {
				modenum = vid_default;
			}

			Cvar_SetValue (vid_mode, modenum);
		} else {
			Cvar_SetValue (vid_mode, vid_modenum);
			return 0;
		}
	}

	if (!force_mode_set && (modenum == vid_modenum))
		return true;

// so Con_Printfs don't mess us up by forcing vid and snd updates
	temp = scr_disabled_for_loading;
	scr_disabled_for_loading = true;
	in_mode_set = true;

	CDAudio_Pause ();
	S_ClearBuffer ();

	if (vid_modenum == NO_MODE)
		original_mode = windowed_default;
	else
		original_mode = vid_modenum;

	// Set either the fullscreen or windowed mode
	if (modelist[modenum].type == MS_WINDOWED) {
		if (_windowed_mouse->int_val && key_dest == key_game) {
			stat = VID_SetWindowedMode (modenum);
			IN_ActivateMouse ();
			IN_HideMouse ();
		} else {
			IN_DeactivateMouse ();
			IN_ShowMouse ();
			stat = VID_SetWindowedMode (modenum);
		}
	} else if (modelist[modenum].type == MS_FULLDIB) {
		stat = VID_SetFullDIBMode (modenum);
		IN_ActivateMouse ();
		IN_HideMouse ();
	} else {
		stat = VID_SetFullscreenMode (modenum);
		IN_ActivateMouse ();
		IN_HideMouse ();
	}

	window_width = vid.width << vid_stretched;
	window_height = vid.height << vid_stretched;
	VID_UpdateWindowStatus ();

	CDAudio_Resume ();
	scr_disabled_for_loading = temp;

	if (!stat) {
		VID_RestoreOldMode (original_mode);
		return false;
	}

	if (hide_window)
		return true;

// now we try to make sure we get the focus on the mode switch, because
// sometimes in some systems we don't.  We grab the foreground, then
// finish setting up, pump all our messages, and sleep for a little while
// to let messages finish bouncing around the system, then we put
// ourselves at the top of the z order, then grab the foreground again,
// Who knows if it helps, but it probably doesn't hurt
	if (!force_minimized)
		SetForegroundWindow (mainwindow);

	hdc = GetDC (NULL);

	if (GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE)
		vid_palettized = true;
	else
		vid_palettized = false;

	VID_SetPalette (palette);

	ReleaseDC (NULL, hdc);

	vid_modenum = modenum;
	Cvar_SetValue (vid_mode, vid_modenum);

	if (!VID_AllocBuffers (vid.width, vid.height)) {
		// couldn't get memory for this mode; try to fall back to previous
		// mode
		VID_RestoreOldMode (original_mode);
		return false;
	}

	D_InitCaches (vid_surfcache, vid_surfcachesize);

	while (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE)) {
		TranslateMessage (&msg);
		DispatchMessage (&msg);
	}

	Sleep (100);

	if (!force_minimized) {
		SetWindowPos (mainwindow, HWND_TOP, 0, 0, 0, 0,
					  SWP_DRAWFRAME | SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW |
					  SWP_NOCOPYBITS);

		SetForegroundWindow (mainwindow);
	}
// fix the leftover Alt from any Alt-Tab or the like that switched us away
	ClearAllStates ();

	if (!msg_suppress_1)
		Con_Printf ("Video mode %s initialized\n",
					VID_GetModeDescription (vid_modenum));

	VID_SetPalette (palette);

	in_mode_set = false;
	vid.recalc_refdef = 1;

	return true;
}

void
VID_LockBuffer (void)
{

	if (dibdc)
		return;

	lockcount++;

	if (lockcount > 1)
		return;

	MGL_beginDirectAccess ();

	if (memdc) {
		// Update surface pointer for linear access modes
		vid.buffer = vid.conbuffer = vid.direct = memdc->surface;
		vid.rowbytes = vid.conrowbytes = memdc->mi.bytesPerLine;
	} else if (mgldc) {
		// Update surface pointer for linear access modes
		vid.buffer = vid.conbuffer = vid.direct = mgldc->surface;
		vid.rowbytes = vid.conrowbytes = mgldc->mi.bytesPerLine;
	}

	if (r_dowarp)
		d_viewbuffer = r_warpbuffer;
	else
		d_viewbuffer = (void *) (byte *) vid.buffer;

	if (r_dowarp)
		screenwidth = WARP_WIDTH;
	else
		screenwidth = vid.rowbytes;
}


void
VID_UnlockBuffer (void)
{
	if (dibdc)
		return;

	lockcount--;

	if (lockcount > 0)
		return;

	if (lockcount < 0)
		Sys_Error ("Unbalanced unlock");

	MGL_endDirectAccess ();

// to turn up any unlocked accesses
	vid.buffer = vid.conbuffer = vid.direct = d_viewbuffer = NULL;

}


int
VID_ForceUnlockedAndReturnState (void)
{
	int         lk;

	if (!lockcount)
		return 0;

	lk = lockcount;

	if (dibdc) {
		lockcount = 0;
	} else {
		lockcount = 1;
		VID_UnlockBuffer ();
	}

	return lk;
}


void
VID_ForceLockState (int lk)
{

	if (!dibdc && lk) {
		lockcount = 0;
		VID_LockBuffer ();
	}

	lockcount = lk;
}


void
VID_SetPalette (unsigned char *palette)
{
	INT         i;
	palette_t   pal[256];
	HDC         hdc;

	if (!Minimized) {
		palette_changed = true;

		// make sure we have the static colors if we're the active app
		hdc = GetDC (NULL);

		if (vid_palettized && ActiveApp) {
			if (GetSystemPaletteUse (hdc) == SYSPAL_STATIC) {
				// switch to SYSPAL_NOSTATIC and remap the colors
				SetSystemPaletteUse (hdc, SYSPAL_NOSTATIC);
				syscolchg = true;
				pal_is_nostatic = true;
			}
		}

		ReleaseDC (NULL, hdc);

		// Translate the palette values to an MGL palette array and
		// set the values.
		for (i = 0; i < 256; i++) {
			pal[i].red = palette[i * 3];
			pal[i].green = palette[i * 3 + 1];
			pal[i].blue = palette[i * 3 + 2];
		}

		if (DDActive) {
			if (!mgldc)
				return;

			MGL_setPalette (mgldc, pal, 256, 0);
			MGL_realizePalette (mgldc, 256, 0, false);
			if (memdc)
				MGL_setPalette (memdc, pal, 256, 0);
		} else {
			if (!windc)
				return;

			MGL_setPalette (windc, pal, 256, 0);
			MGL_realizePalette (windc, 256, 0, false);
			if (dibdc) {
				MGL_setPalette (dibdc, pal, 256, 0);
				MGL_realizePalette (dibdc, 256, 0, false);
			}
		}
	}

	memcpy (vid_curpal, palette, sizeof (vid_curpal));

	if (syscolchg) {
		PostMessage (HWND_BROADCAST, WM_SYSCOLORCHANGE, (WPARAM) 0, (LPARAM) 0);
		syscolchg = false;
	}
}


void
VID_ShiftPalette (unsigned char *palette)
{
	VID_SetPalette (palette);
}


/*
=================
VID_DescribeCurrentMode_f
=================
*/
void
VID_DescribeCurrentMode_f (void)
{
	Con_Printf ("%s\n", VID_GetExtModeDescription (vid_modenum));
}


/*
=================
VID_NumModes_f
=================
*/
void
VID_NumModes_f (void)
{

	if (nummodes == 1)
		Con_Printf ("%d video mode is available\n", nummodes);
	else
		Con_Printf ("%d video modes are available\n", nummodes);
}


/*
=================
VID_DescribeMode_f
=================
*/
void
VID_DescribeMode_f (void)
{
	int         modenum;

	modenum = atoi (Cmd_Argv (1));

	Con_Printf ("%s\n", VID_GetExtModeDescription (modenum));
}


/*
=================
VID_DescribeModes_f
=================
*/
void
VID_DescribeModes_f (void)
{
	int         i, lnummodes;
	char       *pinfo;
	qboolean    na;
	vmode_t    *pv;

	na = false;

	lnummodes = VID_NumModes ();

	for (i = 0; i < lnummodes; i++) {
		pv = VID_GetModePtr (i);
		pinfo = VID_GetExtModeDescription (i);

		if (VID_CheckAdequateMem (pv->width, pv->height)) {
			Con_Printf ("%2d: %s\n", i, pinfo);
		} else {
			Con_Printf ("**: %s\n", pinfo);
			na = true;
		}
	}

	if (na) {
		Con_Printf ("\n[**: not enough system RAM for mode]\n");
	}
}


/*
=================
VID_TestMode_f
=================
*/
void
VID_TestMode_f (void)
{
	int         modenum;
	double      testduration;

	if (!vid_testingmode) {
		modenum = atoi (Cmd_Argv (1));

		if (VID_SetMode (modenum, vid_curpal)) {
			vid_testingmode = 1;
			testduration = atof (Cmd_Argv (2));
			if (testduration == 0)
				testduration = 5.0;
			vid_testendtime = realtime + testduration;
		}
	}
}

/*
=================
VID_Windowed_f
=================
*/
void
VID_Windowed_f (void)
{

	VID_SetMode (vid_windowed_mode->int_val, vid_curpal);
}


/*
=================
VID_Fullscreen_f
=================
*/
void
VID_Fullscreen_f (void)
{

	VID_SetMode (vid_fullscreen_mode->int_val, vid_curpal);
}

/*
=================
VID_Minimize_f
=================
*/
void
VID_Minimize_f (void)
{

// we only support minimizing windows; if you're fullscreen,
// switch to windowed first
	if (modestate == MS_WINDOWED)
		ShowWindow (mainwindow, SW_MINIMIZE);
}



/*
=================
VID_ForceMode_f
=================
*/
void
VID_ForceMode_f (void)
{
	int         modenum;

	if (!vid_testingmode) {
		modenum = atoi (Cmd_Argv (1));

		force_mode_set = 1;
		VID_SetMode (modenum, vid_curpal);
		force_mode_set = 0;
	}
}


void
VID_Init (unsigned char *palette)
{
	int         i, bestmatch = 0, bestmatchmetric, t, dr, dg, db;
	int         basenummodes;
	byte       *ptmp;

	Cmd_AddCommand ("vid_testmode", VID_TestMode_f, "No Description");
	Cmd_AddCommand ("vid_nummodes", VID_NumModes_f, "No Description");
	Cmd_AddCommand ("vid_describecurrentmode", VID_DescribeCurrentMode_f, "No Description");
	Cmd_AddCommand ("vid_describemode", VID_DescribeMode_f, "No Description");
	Cmd_AddCommand ("vid_describemodes", VID_DescribeModes_f, "No Description");
	Cmd_AddCommand ("vid_forcemode", VID_ForceMode_f, "No Description");
	Cmd_AddCommand ("vid_windowed", VID_Windowed_f, "No Description");
	Cmd_AddCommand ("vid_fullscreen", VID_Fullscreen_f, "No Description");
	Cmd_AddCommand ("vid_minimize", VID_Minimize_f, "No Description");

	if (COM_CheckParm ("-dibonly"))
		dibonly = true;

	VID_InitMGLDIB (global_hInstance);

	basenummodes = nummodes;

	if (!dibonly)
		VID_InitMGLFull (global_hInstance);

// if there are no non-windowed modes, or only windowed and mode 0x13, then use
// fullscreen DIBs as well
	if (((nummodes == basenummodes) ||
		 ((nummodes == (basenummodes + 1)) && is_mode0x13)) &&
		!COM_CheckParm ("-nofulldib"))
	 {
		VID_InitFullDIB (global_hInstance);
	}

	vid.maxwarpwidth = WARP_WIDTH;
	vid.maxwarpheight = WARP_HEIGHT;
	vid.colormap = host_colormap;
	vid.fullbright = 256 - LittleLong (*((int *) vid.colormap + 2048));
	vid_testingmode = 0;

// GDI doesn't let us remap palette index 0, so we'll remap color
// mappings from that black to another one
	bestmatchmetric = 256 * 256 * 3;

	for (i = 1; i < 256; i++) {
		dr = palette[0] - palette[i * 3];
		dg = palette[1] - palette[i * 3 + 1];
		db = palette[2] - palette[i * 3 + 2];

		t = (dr * dr) + (dg * dg) + (db * db);

		if (t < bestmatchmetric) {
			bestmatchmetric = t;
			bestmatch = i;

			if (t == 0)
				break;
		}
	}

	for (i = 0, ptmp = vid.colormap; i < (1 << (VID_CBITS + 8)); i++, ptmp++) {
		if (*ptmp == 0)
			*ptmp = bestmatch;
	}

	if (COM_CheckParm ("-startwindowed") || COM_CheckParm ("-window")) {
		startwindowed = 1;
		vid_default = windowed_default;
	}
#ifdef SPLASH_SCREEN
	if (hwnd_dialog)
		DestroyWindow (hwnd_dialog);
#endif

// sound initialization has to go here, preceded by a windowed mode set,
// so there's a window for DirectSound to work with but we're not yet
// fullscreen so the "hardware already in use" dialog is visible if it
// gets displayed

// keep the window minimized until we're ready for the first real mode set
	hide_window = true;
	VID_SetMode (MODE_WINDOWED, palette);
	hide_window = false;
//  S_Init ();

	vid_initialized = true;

	force_mode_set = true;
	VID_SetMode (vid_default, palette);
	force_mode_set = false;

	vid_realmode = vid_modenum;

	VID_SetPalette (palette);

	vid_menudrawfn = VID_MenuDraw;
	vid_menukeyfn = VID_MenuKey;

	strcpy (badmode.modedesc, "Bad mode");
}

void
VID_Init_Cvars ()
{
	vid_mode = Cvar_Get ("vid_mode", "0", CVAR_NONE, "Set the video mode");
	vid_nopageflip = Cvar_Get ("vid_nopageflip", "0", CVAR_ARCHIVE, "Toggles the use of page flipping");
	_vid_default_mode_win =
		Cvar_Get ("_vid_default_mode_win", "3", CVAR_ARCHIVE, "Default windowed video mode");
	vid_config_x = Cvar_Get ("vid_config_x", "800", CVAR_ARCHIVE, "Maximum x-axis screen size");
	vid_config_y = Cvar_Get ("vid_config_y", "600", CVAR_ARCHIVE, "Maximum y-axis screen size");
	vid_stretch_by_2 = Cvar_Get ("vid_stretch_by_2", "1", CVAR_ARCHIVE, "Stretch the pixles by a two fold to acheive proper view");
	_windowed_mouse = Cvar_Get ("_windowed_mouse", "0", CVAR_ARCHIVE, "Have quake grab the mouse from X when you play");
	vid_fullscreen_mode =
		Cvar_Get ("vid_fullscreen_mode", "3", CVAR_ARCHIVE, "Set the full screen video mode.");
	vid_windowed_mode =
		Cvar_Get ("vid_windowed_mode", "0", CVAR_ARCHIVE, "Set the windowed video mode");
	block_switch = Cvar_Get ("block_switch", "0", CVAR_ARCHIVE, "If set, won't allow you to task switch while playing");
	vid_window_x = Cvar_Get ("vid_window_x", "0", CVAR_ARCHIVE, "The x-axis location of the window, if windowed");
	vid_window_y = Cvar_Get ("vid_window_y", "0", CVAR_ARCHIVE, "The y-axis location of the window, if windowed");
}


void
VID_Shutdown (void)
{

#ifdef SPLASH_SCREEN
                if (hwnd_dialog)
                        DestroyWindow (hwnd_dialog);
#endif

	if (vid_initialized) {
		if (modestate == MS_FULLDIB)
			ChangeDisplaySettings (NULL, CDS_FULLSCREEN);

		PostMessage (HWND_BROADCAST, WM_PALETTECHANGED, (WPARAM) mainwindow,
					 (LPARAM) 0);
		PostMessage (HWND_BROADCAST, WM_SYSCOLORCHANGE, (WPARAM) 0, (LPARAM) 0);

		AppActivate (false, false);
		DestroyDIBWindow ();
		DestroyFullscreenWindow ();
		DestroyFullDIBWindow ();

		if (mainwindow)
			DestroyWindow (mainwindow);

		MGL_exit ();

		vid_testingmode = 0;
		vid_initialized = 0;
	}
}


/*
================
FlipScreen
================
*/
void
FlipScreen (vrect_t *rects)
{
	/* Flip the surfaces */
	if (DDActive) {
		if (mgldc) {
			if (memdc) {
				while (rects) {
					if (vid_stretched) {
						MGL_stretchBltCoord (mgldc, memdc,
											 rects->x,
											 rects->y,
											 rects->x + rects->width,
											 rects->y + rects->height,
											 rects->x << 1,
											 rects->y << 1,
											 (rects->x + rects->width) << 1,
											 (rects->y + rects->height) << 1);
					} else {
						MGL_bitBltCoord (mgldc, memdc,
										 rects->x, rects->y,
										 (rects->x + rects->width),
										 (rects->y + rects->height),
										 rects->x, rects->y, MGL_REPLACE_MODE);
					}

					rects = rects->pnext;
				}
			}

			if (vid.numpages > 1) {
				// We have a flipping surface, so do a hard page flip
				aPage = (aPage + 1) % vid.numpages;
				vPage = (vPage + 1) % vid.numpages;
				MGL_setActivePage (mgldc, aPage);
				MGL_setVisualPage (mgldc, vPage, waitVRT);
			}
		}
	} else {
		HDC         hdcScreen;

		hdcScreen = GetDC (mainwindow);

		if (windc && dibdc) {
			MGL_setWinDC (windc, hdcScreen);

			while (rects) {
				if (vid_stretched) {
					MGL_stretchBltCoord (windc, dibdc,
										 rects->x, rects->y,
										 rects->x + rects->width,
										 rects->y + rects->height,
										 rects->x << 1, rects->y << 1,
										 (rects->x + rects->width) << 1,
										 (rects->y + rects->height) << 1);
				} else {
					MGL_bitBltCoord (windc, dibdc,
									 rects->x, rects->y,
									 rects->x + rects->width,
									 rects->y + rects->height, rects->x,
									 rects->y, MGL_REPLACE_MODE);
				}

				rects = rects->pnext;
			}
		}

		ReleaseDC (mainwindow, hdcScreen);
	}
}


void
VID_Update (vrect_t *rects)
{
	vrect_t     rect;
	RECT        trect;

	if (!vid_palettized && palette_changed) {
		palette_changed = false;
		rect.x = 0;
		rect.y = 0;
		rect.width = vid.width;
		rect.height = vid.height;
		rect.pnext = NULL;
		rects = &rect;
	}

	if (firstupdate) {
		if (modestate == MS_WINDOWED) {
			GetWindowRect (mainwindow, &trect);

			if ((trect.left != vid_window_x->int_val) ||
				(trect.top != vid_window_y->int_val)) {
				if (COM_CheckParm ("-resetwinpos")) {
					Cvar_SetValue (vid_window_x, 0.0);
					Cvar_SetValue (vid_window_y, 0.0);
				}

				VID_CheckWindowXY ();
				SetWindowPos (mainwindow, NULL, vid_window_x->int_val,
							  vid_window_y->int_val, 0, 0,
							  SWP_NOSIZE | SWP_NOZORDER | SWP_SHOWWINDOW |
							  SWP_DRAWFRAME);
			}
		}

		if ((_vid_default_mode_win->int_val != vid_default) &&
			(!startwindowed
			 || (_vid_default_mode_win->int_val < MODE_FULLSCREEN_DEFAULT))) {
			firstupdate = 0;

			if (COM_CheckParm ("-resetwinpos")) {
				Cvar_SetValue (vid_window_x, 0.0);
				Cvar_SetValue (vid_window_y, 0.0);
			}

			if ((_vid_default_mode_win->int_val < 0) ||
				(_vid_default_mode_win->int_val >= nummodes)) {
				Cvar_SetValue (_vid_default_mode_win, windowed_default);
			}

			Cvar_SetValue (vid_mode, _vid_default_mode_win->int_val);
		}
	}
	// We've drawn the frame; copy it to the screen
	FlipScreen (rects);

	if (vid_testingmode) {
		if (realtime >= vid_testendtime) {
			VID_SetMode (vid_realmode, vid_curpal);
			vid_testingmode = 0;
		}
	} else {
		if (vid_mode->int_val != vid_realmode) {
			VID_SetMode (vid_mode->int_val, vid_curpal);
			Cvar_SetValue (vid_mode, vid_modenum);
			// so if mode set fails, we don't keep on
			// trying to set that mode
			vid_realmode = vid_modenum;
		}
	}

// handle the mouse state when windowed if that's changed
	if (modestate == MS_WINDOWED) {
		if (!_windowed_mouse->int_val) {
			if (windowed_mouse) {
				IN_DeactivateMouse ();
				IN_ShowMouse ();
			}
			windowed_mouse = false;
		} else {
			windowed_mouse = true;
			if (key_dest == key_game && !mouseactive && ActiveApp) {
				IN_ActivateMouse ();
				IN_HideMouse ();
			} else if (mouseactive && key_dest != key_game) {
				IN_DeactivateMouse ();
				IN_ShowMouse ();
			}
		}
	}
}


/*
================
D_BeginDirectRect
================
*/
void
D_BeginDirectRect (int x, int y, byte * pbitmap, int width, int height)
{
	int         i, j, reps, repshift;
	vrect_t     rect;

	if (!vid_initialized)
		return;

	if (vid.aspect > 1.5) {
		reps = 2;
		repshift = 1;
	} else {
		reps = 1;
		repshift = 0;
	}

	if (vid.numpages == 1) {
		VID_LockBuffer ();

		if (!vid.direct)
			Sys_Error ("NULL vid.direct pointer");

		for (i = 0; i < (height << repshift); i += reps) {
			for (j = 0; j < reps; j++) {
				memcpy (&backingbuf[(i + j) * 24],
						vid.direct + x + ((y << repshift) + i +
										  j) * vid.rowbytes, width);
				memcpy (vid.direct + x +
						((y << repshift) + i + j) * vid.rowbytes,
						&pbitmap[(i >> repshift) * width], width);
			}
		}

		VID_UnlockBuffer ();

		rect.x = x;
		rect.y = y;
		rect.width = width;
		rect.height = height << repshift;
		rect.pnext = NULL;

		FlipScreen (&rect);
	} else {
		// unlock if locked
		if (lockcount > 0)
			MGL_endDirectAccess ();

		// set the active page to the displayed page
		MGL_setActivePage (mgldc, vPage);

		// lock the screen
		MGL_beginDirectAccess ();

		// save from and draw to screen
		for (i = 0; i < (height << repshift); i += reps) {
			for (j = 0; j < reps; j++) {
				memcpy (&backingbuf[(i + j) * 24],
						(byte *) mgldc->surface + x +
						((y << repshift) + i + j) * mgldc->mi.bytesPerLine,
						width);
				memcpy ((byte *) mgldc->surface + x +
						((y << repshift) + i + j) * mgldc->mi.bytesPerLine,
						&pbitmap[(i >> repshift) * width], width);
			}
		}

		// unlock the screen
		MGL_endDirectAccess ();

		// restore the original active page
		MGL_setActivePage (mgldc, aPage);

		// relock the screen if it was locked
		if (lockcount > 0)
			MGL_beginDirectAccess ();
	}
}


/*
================
D_EndDirectRect
================
*/
void
D_EndDirectRect (int x, int y, int width, int height)
{
	int         i, j, reps, repshift;
	vrect_t     rect;

	if (!vid_initialized)
		return;

	if (vid.aspect > 1.5) {
		reps = 2;
		repshift = 1;
	} else {
		reps = 1;
		repshift = 0;
	}

	if (vid.numpages == 1) {
		VID_LockBuffer ();

		if (!vid.direct)
			Sys_Error ("NULL vid.direct pointer");

		for (i = 0; i < (height << repshift); i += reps) {
			for (j = 0; j < reps; j++) {
				memcpy (vid.direct + x +
						((y << repshift) + i + j) * vid.rowbytes,
						&backingbuf[(i + j) * 24], width);
			}
		}

		VID_UnlockBuffer ();

		rect.x = x;
		rect.y = y;
		rect.width = width;
		rect.height = height << repshift;
		rect.pnext = NULL;

		FlipScreen (&rect);
	} else {
		// unlock if locked
		if (lockcount > 0)
			MGL_endDirectAccess ();

		// set the active page to the displayed page
		MGL_setActivePage (mgldc, vPage);

		// lock the screen
		MGL_beginDirectAccess ();

		// restore to the screen
		for (i = 0; i < (height << repshift); i += reps) {
			for (j = 0; j < reps; j++) {
				memcpy ((byte *) mgldc->surface + x +
						((y << repshift) + i + j) * mgldc->mi.bytesPerLine,
						&backingbuf[(i + j) * 24], width);
			}
		}

		// unlock the screen
		MGL_endDirectAccess ();

		// restore the original active page
		MGL_setActivePage (mgldc, aPage);

		// relock the screen if it was locked
		if (lockcount > 0)
			MGL_beginDirectAccess ();
	}
}


//==========================================================================

byte        scantokey[128] = {
//  0       1        2       3       4       5       6       7
//  8       9        A       B       C       D       E       F
	0, 27, '1', '2', '3', '4', '5', '6',
	'7', '8', '9', '0', '-', '=', K_BACKSPACE, 9,	// 0
	'q', 'w', 'e', 'r', 't', 'y', 'u', 'i',
	'o', 'p', '[', ']', 13, K_CTRL, 'a', 's',	// 1
	'd', 'f', 'g', 'h', 'j', 'k', 'l', ';',
	'\'', '`', K_SHIFT, '\\', 'z', 'x', 'c', 'v',	// 2
	'b', 'n', 'm', ',', '.', '/', K_SHIFT, KP_MULTIPLY,
	K_ALT, ' ', K_CAPSLOCK, K_F1, K_F2, K_F3, K_F4, K_F5,	// 3
	K_F6, K_F7, K_F8, K_F9, K_F10, K_PAUSE, K_SCRLCK, KP_HOME,
	KP_UPARROW, KP_PGUP, KP_MINUS, KP_LEFTARROW, KP_5, KP_RIGHTARROW, KP_PLUS, KP_END,	// 4
	KP_DOWNARROW, KP_PGDN, KP_INS, KP_DEL, 0, 0, 0, K_F11,
	K_F12, 0, 0, 0, 0, 0, 0, 0,			// 5
	0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0
};

byte        extscantokey[128] = {
//  0       1        2       3       4       5       6       7
//  8       9        A       B       C       D       E       F
	0, 27, '1', '2', '3', '4', '5', '6',
	'7', '8', '9', '0', '-', '=', K_BACKSPACE, 9,	// 0
	'q', 'w', 'e', 'r', 't', 'y', 'u', 'i',
	'o', 'p', '[', ']', KP_ENTER, K_CTRL, 'a', 's',	// 1
	'd', 'f', 'g', 'h', 'j', 'k', 'l', ';',
	'\'', '`', K_SHIFT, '\\', 'z', 'x', 'c', 'v',	// 2
	'b', 'n', 'm', ',', '.', KP_DIVIDE, K_SHIFT, '*',
	K_ALT, ' ', K_CAPSLOCK, K_F1, K_F2, K_F3, K_F4, K_F5,	// 3
	K_F6, K_F7, K_F8, K_F9, K_F10, KP_NUMLCK, 0, K_HOME,
	K_UPARROW, K_PGUP, '-', K_LEFTARROW, '5', K_RIGHTARROW, '+', K_END,	// 4
	K_DOWNARROW, K_PGDN, K_INS, K_DEL, 0, 0, 0, K_F11,
	K_F12, 0, 0, 0, 0, 0, 0, 0,			// 5
	0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0
};



/*
=======
MapKey

Map from windows to quake keynums
=======
*/
int
MapKey (int key)
{
	int         extended;

	extended = (key >> 24) & 1;

	key = (key >> 16) & 255;
	if (key > 127)
		return 0;

	if (extended)
		return extscantokey[key];
	else
		return scantokey[key];
}


void
AppActivate (BOOL fActive, BOOL minimize)
/****************************************************************************
*
* Function:     AppActivate
* Parameters:   fActive - True if app is activating
*
* Description:  If the application is activating, then swap the system
*               into SYSPAL_NOSTATIC mode so that our palettes will display
*               correctly.
*
****************************************************************************/
{
	HDC         hdc;
	int         i, t;
	static BOOL sound_active;

	ActiveApp = fActive;

// messy, but it seems to work
	if (vid_fulldib_on_focus_mode) {
		Minimized = minimize;

		if (Minimized)
			ActiveApp = false;
	}

	MGL_appActivate (windc, ActiveApp);

	if (vid_initialized) {
		// yield the palette if we're losing the focus
		hdc = GetDC (NULL);

		if (GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE) {
			if (ActiveApp) {
				if ((modestate == MS_WINDOWED) || (modestate == MS_FULLDIB)) {
					if (GetSystemPaletteUse (hdc) == SYSPAL_STATIC) {
						// switch to SYSPAL_NOSTATIC and remap the colors
						SetSystemPaletteUse (hdc, SYSPAL_NOSTATIC);
						syscolchg = true;
						pal_is_nostatic = true;
					}
				}
			} else if (pal_is_nostatic) {
				if (GetSystemPaletteUse (hdc) == SYSPAL_NOSTATIC) {
					// switch back to SYSPAL_STATIC and the old mapping
					SetSystemPaletteUse (hdc, SYSPAL_STATIC);
					syscolchg = true;
				}

				pal_is_nostatic = false;
			}
		}

		if (!Minimized)
			VID_SetPalette (vid_curpal);

		scr_fullupdate = 0;

		ReleaseDC (NULL, hdc);
	}
// enable/disable sound on focus gain/loss
	if (!ActiveApp && sound_active) {
		S_BlockSound ();
		S_ClearBuffer ();
		sound_active = false;
	} else if (ActiveApp && !sound_active) {
		S_UnblockSound ();
		S_ClearBuffer ();
		sound_active = true;
	}
// minimize/restore fulldib windows/mouse-capture normal windows on demand
	if (!in_mode_set) {
		if (ActiveApp) {
			if (vid_fulldib_on_focus_mode) {
				if (vid_initialized) {
					msg_suppress_1 = true;	// don't want to see normal mode
											// set message
					VID_SetMode (vid_fulldib_on_focus_mode, vid_curpal);
					msg_suppress_1 = false;

					t = in_mode_set;
					in_mode_set = true;
					AppActivate (true, false);
					in_mode_set = t;
				}

				IN_ActivateMouse ();
				IN_HideMouse ();
			}
				else if ((modestate == MS_WINDOWED) && _windowed_mouse->int_val
						 && key_dest == key_game) {
				IN_ActivateMouse ();
				IN_HideMouse ();
			}
		}

		if (!ActiveApp) {
			if (modestate == MS_FULLDIB) {
				if (vid_initialized) {
					force_minimized = true;
					i = vid_fulldib_on_focus_mode;
					msg_suppress_1 = true;	// don't want to see normal mode
											// set message
					VID_SetMode (windowed_default, vid_curpal);
					msg_suppress_1 = false;
					vid_fulldib_on_focus_mode = i;
					force_minimized = false;

					// we never seem to get WM_ACTIVATE inactive from this
					// mode set, so we'll
					// do it manually
					t = in_mode_set;
					in_mode_set = true;
					AppActivate (false, true);
					in_mode_set = t;
				}

				IN_DeactivateMouse ();
				IN_ShowMouse ();
			} else if ((modestate == MS_WINDOWED) && _windowed_mouse->int_val	/* && 
																				   mouseactive 
																				 */ ) {
				IN_DeactivateMouse ();
				IN_ShowMouse ();
			}
		}
	}
}


/*
================
VID_HandlePause
================
*/
void
VID_HandlePause (qboolean pause)
{
#if 0
	if ((modestate == MS_WINDOWED) && _windowed_mouse->int_val) {
		if (pause) {
			IN_DeactivateMouse ();
			IN_ShowMouse ();
		} else {
			IN_ActivateMouse ();
			IN_HideMouse ();
		}
	}
#endif
}


/*
===================================================================

MAIN WINDOW

===================================================================
*/

LONG        CDAudio_MessageHandler (HWND hWnd, UINT uMsg, WPARAM wParam,

									LPARAM lParam);

/* main window procedure */
LONG WINAPI
MainWndProc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	LONG        lRet = 0;
	int         fActive, fMinimized, temp;
	HDC         hdc;
	PAINTSTRUCT ps;
	extern unsigned int uiWheelMessage;

	if (uMsg == uiWheelMessage) {
		uMsg = WM_MOUSEWHEEL;
		wParam <<= 16;
	}


	switch (uMsg) {
		case WM_CREATE:
			break;

		case WM_SYSCOMMAND:

			// Check for maximize being hit
			switch (wParam & ~0x0F) {
				case SC_MAXIMIZE:
					// if minimized, bring up as a window before going
					// fullscreen,
					// so MGL will have the right state to restore
					if (Minimized) {
						force_mode_set = true;
						VID_SetMode (vid_modenum, vid_curpal);
						force_mode_set = false;
					}

					VID_SetMode (vid_fullscreen_mode->int_val, vid_curpal);
					break;

				case SC_SCREENSAVE:
				case SC_MONITORPOWER:
					if (modestate != MS_WINDOWED) {
						// don't call DefWindowProc() because we don't want
						// to start
						// the screen saver fullscreen
						break;
					}
					// fall through windowed and allow the screen saver to
					// start

				default:
					if (!in_mode_set) {
						S_BlockSound ();
						S_ClearBuffer ();
					}

					lRet = DefWindowProc (hWnd, uMsg, wParam, lParam);

					if (!in_mode_set) {
						S_UnblockSound ();
					}
			}
			break;

		case WM_MOVE:
			window_x = (int) LOWORD (lParam);
			window_y = (int) HIWORD (lParam);
			VID_UpdateWindowStatus ();

			if ((modestate == MS_WINDOWED) && !in_mode_set && !Minimized)
				VID_RememberWindowPos ();

			break;

		case WM_SIZE:
			Minimized = false;

			if (!(wParam & SIZE_RESTORED)) {
				if (wParam & SIZE_MINIMIZED)
					Minimized = true;
			}
			break;

		case WM_SYSCHAR:
			// keep Alt-Space from happening
			break;

		case WM_ACTIVATE:
			fActive = LOWORD (wParam);
			fMinimized = (BOOL) HIWORD (wParam);
			AppActivate (!(fActive == WA_INACTIVE), fMinimized);

			// fix the leftover Alt from any Alt-Tab or the like that
			// switched us away
			ClearAllStates ();

			if (!in_mode_set) {
				if (windc)
					MGL_activatePalette (windc, true);

				VID_SetPalette (vid_curpal);
			}

			break;

		case WM_PAINT:
			hdc = BeginPaint (hWnd, &ps);

			if (!in_mode_set && host_initialized)
				SCR_UpdateWholeScreen ();

			EndPaint (hWnd, &ps);
			break;

		case WM_KEYDOWN:
		case WM_SYSKEYDOWN:
			if (!in_mode_set)
				Key_Event (MapKey (lParam), -1, true);
			break;

		case WM_KEYUP:
		case WM_SYSKEYUP:
			if (!in_mode_set)
				Key_Event (MapKey (lParam), -1, false);
			break;

			// this is complicated because Win32 seems to pack multiple mouse 
			// events into
			// one update sometimes, so we always check all states and look
			// for events
		case WM_LBUTTONDOWN:
		case WM_LBUTTONUP:
		case WM_RBUTTONDOWN:
		case WM_RBUTTONUP:
		case WM_MBUTTONDOWN:
		case WM_MBUTTONUP:
		case WM_MOUSEMOVE:
			if (!in_mode_set) {
				temp = 0;

				if (wParam & MK_LBUTTON)
					temp |= 1;

				if (wParam & MK_RBUTTON)
					temp |= 2;

				if (wParam & MK_MBUTTON)
					temp |= 4;

				IN_MouseEvent (temp);
			}
			break;
			// JACK: This is the mouse wheel with the Intellimouse
			// Its delta is either positive or neg, and we generate the
			// proper
			// Event.
		case WM_MOUSEWHEEL:
			if ((short) HIWORD (wParam) > 0) {
				Key_Event (K_MWHEELUP, -1, true);
				Key_Event (K_MWHEELUP, -1, false);
			} else {
				Key_Event (K_MWHEELDOWN, -1, true);
				Key_Event (K_MWHEELDOWN, -1, false);
			}
			break;
			// KJB: Added these new palette functions
		case WM_PALETTECHANGED:
			if ((HWND) wParam == hWnd)
				break;
			/* Fall through to WM_QUERYNEWPALETTE */
		case WM_QUERYNEWPALETTE:
			hdc = GetDC (NULL);

			if (GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE)
				vid_palettized = true;
			else
				vid_palettized = false;

			ReleaseDC (NULL, hdc);

			scr_fullupdate = 0;

			if (vid_initialized && !in_mode_set && windc
				&& MGL_activatePalette (windc, false) && !Minimized) {
				VID_SetPalette (vid_curpal);
				InvalidateRect (mainwindow, NULL, false);

				// specifically required if WM_QUERYNEWPALETTE realizes a new 
				// palette
				lRet = TRUE;
			}
			break;

		case WM_DISPLAYCHANGE:
			if (!in_mode_set && (modestate == MS_WINDOWED)
				&& !vid_fulldib_on_focus_mode) {
				force_mode_set = true;
				VID_SetMode (vid_modenum, vid_curpal);
				force_mode_set = false;
			}
			break;

		case WM_CLOSE:
			// this causes Close in the right-click task bar menu not to
			// work, but right
			// now bad things happen if Close is handled in that case
			// (garbage and a
			// crash on Win95)
			if (!in_mode_set) {
				if (MessageBox
					(mainwindow, "Are you sure you want to quit?",
					 "Confirm Exit",
					 MB_YESNO | MB_SETFOREGROUND | MB_ICONQUESTION) == IDYES) {
					Sys_Quit ();
				}
			}
			break;

		case MM_MCINOTIFY:
			lRet = CDAudio_MessageHandler (hWnd, uMsg, wParam, lParam);
			break;

		default:
			/* pass all unhandled messages to DefWindowProc */
			lRet = DefWindowProc (hWnd, uMsg, wParam, lParam);
			break;
	}

	/* return 0 if handled message, 1 if not */
	return lRet;
}


extern void M_Menu_Options_f (void);
extern void M_Print (int cx, int cy, char *str);
extern void M_PrintWhite (int cx, int cy, char *str);
extern void M_DrawCharacter (int cx, int line, int num);
extern void M_DrawTransPic (int x, int y, qpic_t *pic);
extern void M_DrawPic (int x, int y, qpic_t *pic);

static int  vid_line, vid_wmodes;

typedef struct {
	int         modenum;
	char       *desc;
	int         iscur;
	int         ismode13;
	int         width;
} modedesc_t;

#define MAX_COLUMN_SIZE		5
#define MODE_AREA_HEIGHT	(MAX_COLUMN_SIZE + 6)
#define MAX_MODEDESCS		(MAX_COLUMN_SIZE*3)

static modedesc_t modedescs[MAX_MODEDESCS];

/*
================
VID_MenuDraw
================
*/
void
VID_MenuDraw (void)
{
	qpic_t     *p;
	char       *ptr;
	int         lnummodes, i, j, k, column, row, dup, dupmode = 0;
	char        temp[100];
	vmode_t    *pv;
	modedesc_t  tmodedesc;

	p = Draw_CachePic ("gfx/vidmodes.lmp");
	M_DrawPic ((320 - p->width) / 2, 4, p);

	for (i = 0; i < 3; i++) {
		ptr = VID_GetModeDescriptionMemCheck (i);
		modedescs[i].modenum = modelist[i].modenum;
		modedescs[i].desc = ptr;
		modedescs[i].ismode13 = 0;
		modedescs[i].iscur = 0;

		if (vid_modenum == i)
			modedescs[i].iscur = 1;
	}

	vid_wmodes = 3;
	lnummodes = VID_NumModes ();

	for (i = 3; i < lnummodes; i++) {
		ptr = VID_GetModeDescriptionMemCheck (i);
		pv = VID_GetModePtr (i);

		// we only have room for 15 fullscreen modes, so don't allow
		// 360-wide modes, because if there are 5 320-wide modes and
		// 5 360-wide modes, we'll run out of space
		if (ptr && ((pv->width != 360) || COM_CheckParm ("-allow360"))) {
			dup = 0;

			for (j = 3; j < vid_wmodes; j++) {
				if (!strcmp (modedescs[j].desc, ptr)) {
					dup = 1;
					dupmode = j;
					break;
				}
			}

			if (dup || (vid_wmodes < MAX_MODEDESCS)) {
				if (!dup || !modedescs[dupmode].ismode13
					|| COM_CheckParm ("-noforcevga")) {
					if (dup) {
						k = dupmode;
					} else {
						k = vid_wmodes;
					}

					modedescs[k].modenum = i;
					modedescs[k].desc = ptr;
					modedescs[k].ismode13 = pv->mode13;
					modedescs[k].iscur = 0;
					modedescs[k].width = pv->width;

					if (i == vid_modenum)
						modedescs[k].iscur = 1;

					if (!dup)
						vid_wmodes++;
				}
			}
		}
	}

// sort the modes on width (to handle picking up oddball dibonly modes
// after all the others)
	for (i = 3; i < (vid_wmodes - 1); i++) {
		for (j = (i + 1); j < vid_wmodes; j++) {
			if (modedescs[i].width > modedescs[j].width) {
				tmodedesc = modedescs[i];
				modedescs[i] = modedescs[j];
				modedescs[j] = tmodedesc;
			}
		}
	}


	M_Print (13 * 8, 36, "Windowed Modes");

	column = 16;
	row = 36 + 2 * 8;

	for (i = 0; i < 3; i++) {
		if (modedescs[i].iscur)
			M_PrintWhite (column, row, modedescs[i].desc);
		else
			M_Print (column, row, modedescs[i].desc);

		column += 13 * 8;
	}

	if (vid_wmodes > 3) {
		M_Print (12 * 8, 36 + 4 * 8, "Fullscreen Modes");

		column = 16;
		row = 36 + 6 * 8;

		for (i = 3; i < vid_wmodes; i++) {
			if (modedescs[i].iscur)
				M_PrintWhite (column, row, modedescs[i].desc);
			else
				M_Print (column, row, modedescs[i].desc);

			column += 13 * 8;

			if (((i - 3) % VID_ROW_SIZE) == (VID_ROW_SIZE - 1)) {
				column = 16;
				row += 8;
			}
		}
	}
// line cursor
	if (vid_testingmode) {
		snprintf (temp, sizeof (temp), "TESTING %s", modedescs[vid_line].desc);
		M_Print (13 * 8, 36 + MODE_AREA_HEIGHT * 8 + 8 * 4, temp);
		M_Print (9 * 8, 36 + MODE_AREA_HEIGHT * 8 + 8 * 6,
				 "Please wait 5 seconds...");
	} else {
		M_Print (9 * 8, 36 + MODE_AREA_HEIGHT * 8 + 8,
				 "Press Enter to set mode");
		M_Print (6 * 8, 36 + MODE_AREA_HEIGHT * 8 + 8 * 3,
				 "T to test mode for 5 seconds");
		ptr = VID_GetModeDescription2 (vid_modenum);

		if (ptr) {
			snprintf (temp, sizeof (temp), "D to set default: %s", ptr);
			M_Print (2 * 8, 36 + MODE_AREA_HEIGHT * 8 + 8 * 5, temp);
		}

		ptr = VID_GetModeDescription2 (_vid_default_mode_win->int_val);

		if (ptr) {
			snprintf (temp, sizeof (temp), "Current default: %s", ptr);
			M_Print (3 * 8, 36 + MODE_AREA_HEIGHT * 8 + 8 * 6, temp);
		}

		M_Print (15 * 8, 36 + MODE_AREA_HEIGHT * 8 + 8 * 8, "Esc to exit");

		row = 36 + 2 * 8 + (vid_line / VID_ROW_SIZE) * 8;
		column = 8 + (vid_line % VID_ROW_SIZE) * 13 * 8;

		if (vid_line >= 3)
			row += 3 * 8;

		M_DrawCharacter (column, row, 12 + ((int) (realtime * 4) & 1));
	}
}


/*
================
VID_MenuKey
================
*/
void
VID_MenuKey (int key)
{
	if (vid_testingmode)
		return;

	switch (key) {
		case K_ESCAPE:
			S_LocalSound ("misc/menu1.wav");
			M_Menu_Options_f ();
			break;

		case K_LEFTARROW:

			S_LocalSound ("misc/menu1.wav");
			vid_line = ((vid_line / VID_ROW_SIZE) * VID_ROW_SIZE) +
				((vid_line + 2) % VID_ROW_SIZE);

			if (vid_line >= vid_wmodes)
				vid_line = vid_wmodes - 1;
			break;

		case K_RIGHTARROW:
			S_LocalSound ("misc/menu1.wav");
			vid_line = ((vid_line / VID_ROW_SIZE) * VID_ROW_SIZE) +
				((vid_line + 4) % VID_ROW_SIZE);

			if (vid_line >= vid_wmodes)
				vid_line = (vid_line / VID_ROW_SIZE) * VID_ROW_SIZE;
			break;

		case K_UPARROW:
			S_LocalSound ("misc/menu1.wav");
			vid_line -= VID_ROW_SIZE;

			if (vid_line < 0) {
				vid_line += ((vid_wmodes + (VID_ROW_SIZE - 1)) /
							 VID_ROW_SIZE) * VID_ROW_SIZE;

				while (vid_line >= vid_wmodes)
					vid_line -= VID_ROW_SIZE;
			}
			break;

		case K_DOWNARROW:
			S_LocalSound ("misc/menu1.wav");
			vid_line += VID_ROW_SIZE;

			if (vid_line >= vid_wmodes) {
				vid_line -= ((vid_wmodes + (VID_ROW_SIZE - 1)) /
							 VID_ROW_SIZE) * VID_ROW_SIZE;

				while (vid_line < 0)
					vid_line += VID_ROW_SIZE;
			}
			break;

		case K_ENTER:
			S_LocalSound ("misc/menu1.wav");
			VID_SetMode (modedescs[vid_line].modenum, vid_curpal);
			break;

		case 'T':
		case 't':
			S_LocalSound ("misc/menu1.wav");
			// have to set this before setting the mode because WM_PAINT
			// happens during the mode set and does a VID_Update, which
			// checks vid_testingmode
			vid_testingmode = 1;
			vid_testendtime = realtime + 5.0;

			if (!VID_SetMode (modedescs[vid_line].modenum, vid_curpal)) {
				vid_testingmode = 0;
			}
			break;

		case 'D':
		case 'd':
			S_LocalSound ("misc/menu1.wav");
			firstupdate = 0;
			Cvar_SetValue (_vid_default_mode_win, vid_modenum);
			break;

		default:
			break;
	}
}

void
VID_SetCaption (char *text)
{
	if (text && *text) {
		char       *temp = strdup (text);

		SetWindowText (mainwindow,
					   (LPSTR) va ("%s %s: %s", PROGRAM, VERSION, text));
		free (temp);
	} else {
		SetWindowText (mainwindow, (LPSTR) va ("%s %s", PROGRAM, VERSION));
	}
}