quakeforge/qw/source/vid.c

117 lines
2.7 KiB
C

/*
vid.c
general video driver functions
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 "QF/cvar.h"
#include "vid.h"
#include "QF/va.h"
#include "QF/qargs.h"
#include "QF/sys.h"
extern viddef_t vid; // global video state
int scr_width, scr_height;
cvar_t *vid_width;
cvar_t *vid_height;
void
VID_GetWindowSize (int def_w, int def_h)
{
int pnum;
vid_width = Cvar_Get ("vid_width", va ("%d", def_w), CVAR_NONE, NULL,
"screen width");
vid_height = Cvar_Get ("vid_height", va ("%d", def_h), CVAR_NONE, NULL,
"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;
}
#if 0
VID_Calc_Gamma (void)
{
float f;
int i;
int v;
byte
float g = bound (0.3, gamma->value, 3);
Cvar_SetValue (gamma, g);
if (gamma_flipped->int_val)
g = 1 / g;
for (i = 0; i < 256; i++) {
f = pow ((i + 1) / 256.0, g);
v = f * 255 + 0.5;
lightmap_gamma[i] = bound (0, v, 255);
for (j = 0; j < 3; j++) {
f = pow ((host_basepal[i * 3 + j] + 1) / 256.0, g);
v = f * 255 + 0.5;
palette[i] = bound (0, v, 255);
}
}
}
#endif