newtree/source/vid.c

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/*
vid.c
general video driver functions
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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
$Id$
*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
#endif
#include "cvar.h"
#include "vid.h"
#include "va.h"
#include "qargs.h"
#include "sys.h"
extern viddef_t vid; // global video state
int scr_width, scr_height;
cvar_t *vid_width;
cvar_t *vid_height;
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void
VID_GetWindowSize (int def_w, int def_h)
{
int pnum;
vid_width = Cvar_Get ("vid_width", va ("%d", def_w), CVAR_NONE, "screen width");
vid_height = Cvar_Get ("vid_height", va ("%d", def_h), CVAR_NONE, "screen height");
if ((pnum = COM_CheckParm ("-width"))) {
if (pnum >= com_argc - 1)
Sys_Error ("VID: -width <width>\n");
Cvar_Set (vid_width, com_argv[pnum + 1]);
if (!vid_width->int_val)
Sys_Error ("VID: Bad window width\n");
}
if ((pnum = COM_CheckParm ("-height"))) {
if (pnum >= com_argc - 1)
Sys_Error ("VID: -height <height>\n");
Cvar_Set (vid_height, com_argv[pnum + 1]);
if (!vid_height->int_val)
Sys_Error ("VID: Bad window height\n");
}
if ((pnum = COM_CheckParm ("-winsize"))) {
if (pnum >= com_argc - 2)
Sys_Error ("VID: -winsize <width> <height>\n");
Cvar_Set (vid_width, com_argv[pnum + 1]);
Cvar_Set (vid_height, com_argv[pnum + 2]);
if (!vid_width->int_val || !vid_height->int_val)
Sys_Error ("VID: Bad window width/height\n");
}
Cvar_SetFlags (vid_width, vid_width->flags | CVAR_ROM);
Cvar_SetFlags (vid_height, vid_height->flags | CVAR_ROM);
scr_width = vid.width = vid_width->int_val;
scr_height = vid.height = vid_height->int_val;
}