vid_win.c

quake1 dos源代码最新版本

	}
	else
	{
		sprintf(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)
	{
		sprintf(pinfo,"%s fullscreen %s",pv->modedesc,
				MGL_modeDriverName(pv->modenum));
	}
	else if (modelist[mode].type == MS_FULLDIB)
	{
		sprintf(pinfo,"%s fullscreen DIB", pv->modedesc);
	}
	else
	{
		sprintf(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;	// 2001-12-10 Reduced compiler warnings by Jeff Ford
	LONG			wlong;

	if (!windowed_mode_set)
	{
		if (COM_CheckParm ("-resetwinpos"))
		{
			Cvar_Set (vid_window_x, "0");
			Cvar_Set (vid_window_y, "0");
		}

//		windowed_mode_set;	// 2001-12-10 Reduced compiler warnings by Jeff Ford
	}

	VID_CheckModedescFixup (modenum);

	DDActive = 0;
//	lastmodestate = modestate;	// 2001-12-10 Reduced compiler warnings by Jeff Ford

	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",
			 "WinQuake",
			 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, (int)vid_window_x->value,
				  (int)vid_window_y->value, 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 ||
		 (int)vid_nopageflip->value)) == 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;	// 2001-12-10 Reduced compiler warnings by Jeff Ford

	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;	// 2001-12-10 Reduced compiler warnings by Jeff Ford
	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, dummy;
	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, (float)modenum);
		}
		else
		{
			Cvar_SetValue (vid_mode, (float)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->value)
		{
			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, (float)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);
	}