vid_win.c

quake1 dos源代码最新版本

	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_SafePrintf ("%s\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;

	if (lcd_x->value)
		screenwidth <<= 1;
}


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 = Q_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 = Q_atoi (Cmd_Argv(1));

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


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

	VID_SetMode ((int)vid_windowed_mode->value, vid_curpal);
}


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

	VID_SetMode ((int)vid_fullscreen_mode->value, 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;
	double	testduration;

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

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

// 2001-09-18 New cvar system by Maddes (Init)  start
void VID_Init_Cvars (void)
{
	vid_mode = Cvar_Get ("vid_mode", "0", CVAR_ORIGINAL);
	vid_wait = Cvar_Get ("vid_wait", "0", CVAR_ORIGINAL);
	vid_nopageflip = Cvar_Get ("vid_nopageflip", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	_vid_wait_override = Cvar_Get ("_vid_wait_override", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	_vid_default_mode = Cvar_Get ("_vid_default_mode", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	_vid_default_mode_win = Cvar_Get ("_vid_default_mode_win", "3", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_config_x = Cvar_Get ("vid_config_x", "800", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_config_y = Cvar_Get ("vid_config_y", "600", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_stretch_by_2 = Cvar_Get ("vid_stretch_by_2", "1", CVAR_ARCHIVE|CVAR_ORIGINAL);
	_windowed_mouse = Cvar_Get ("_windowed_mouse", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_fullscreen_mode = Cvar_Get ("vid_fullscreen_mode", "3", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_windowed_mode = Cvar_Get ("vid_windowed_mode", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	block_switch = Cvar_Get ("block_switch", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_window_x = Cvar_Get ("vid_window_x", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_window_y = Cvar_Get ("vid_window_y", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
}
// 2001-09-18 New cvar system by Maddes (Init)  end

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

// 2001-09-18 New cvar system by Maddes (Init)  start
/*
	vid_mode = Cvar_Get ("vid_mode", "0", CVAR_ORIGINAL);
	vid_wait = Cvar_Get ("vid_wait", "0", CVAR_ORIGINAL);
	vid_nopageflip = Cvar_Get ("vid_nopageflip", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	_vid_wait_override = Cvar_Get ("_vid_wait_override", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	_vid_default_mode = Cvar_Get ("_vid_default_mode", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	_vid_default_mode_win = Cvar_Get ("_vid_default_mode_win", "3", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_config_x = Cvar_Get ("vid_config_x", "800", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_config_y = Cvar_Get ("vid_config_y", "600", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_stretch_by_2 = Cvar_Get ("vid_stretch_by_2", "1", CVAR_ARCHIVE|CVAR_ORIGINAL);
	_windowed_mouse = Cvar_Get ("_windowed_mouse", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_fullscreen_mode = Cvar_Get ("vid_fullscreen_mode", "3", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_windowed_mode = Cvar_Get ("vid_windowed_mode", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	block_switch = Cvar_Get ("block_switch", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_window_x = Cvar_Get ("vid_window_x", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
	vid_window_y = Cvar_Get ("vid_window_y", "0", CVAR_ARCHIVE|CVAR_ORIGINAL);
*/
// 2001-09-18 New cvar system by Maddes (Init)  end

	Cmd_AddCommand ("vid_testmode", VID_TestMode_f);
	Cmd_AddCommand ("vid_nummodes", VID_NumModes_f);
	Cmd_AddCommand ("vid_describecurrentmode", VID_DescribeCurrentMode_f);
	Cmd_AddCommand ("vid_describemode", VID_DescribeMode_f);
	Cmd_AddCommand ("vid_describemodes", VID_DescribeModes_f);
	Cmd_AddCommand ("vid_forcemode", VID_ForceMode_f);
	Cmd_AddCommand ("vid_windowed", VID_Windowed_f);
	Cmd_AddCommand ("vid_fullscreen", VID_Fullscreen_f);
	Cmd_AddCommand ("vid_minimize", VID_Minimize_f);

	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"))
	{
		startwindowed = 1;
		vid_default = windowed_default;
	}

	if (hwnd_dialog)
		DestroyWindow (hwnd_dialog);

// 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_Shutdown (void)
{
	HDC				hdc;
	int				dummy;

	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 (hwnd_dialog)
			DestroyWindow (hwnd_dialog);

		if (mainwindow)
			DestroyWindow(mainwindow);

		MGL_exit();

		vid_testingmode = 0;
		vid_initialized = 0;
	}
}


/*
================
FlipScreen
================
*/
void FlipScreen(vrect_t *rects)
{
	HRESULT		ddrval;

	// Flip the surfaces

	if (DDActive)
	{
		if (mgldc)
		{
			if (memdc)
			{
				while (rects)