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779 lines
15 KiB
C
779 lines
15 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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//
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// vid_dos.c: DOS-specific video routines
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//
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <dos.h>
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#include <dpmi.h>
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#include <go32.h>
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#include "quakedef.h"
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#include "d_local.h"
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#include "dosisms.h"
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#include "vid_dos.h"
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int vid_modenum;
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vmode_t *pcurrentmode = NULL;
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int vid_testingmode, vid_realmode;
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double vid_testendtime;
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cvar_t vid_mode = {"vid_mode","0", false};
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cvar_t vid_wait = {"vid_wait","0"};
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cvar_t vid_nopageflip = {"vid_nopageflip","0", true};
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cvar_t _vid_wait_override = {"_vid_wait_override", "0", true};
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cvar_t _vid_default_mode = {"_vid_default_mode","0", true};
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cvar_t _vid_default_mode_win = {"_vid_default_mode_win","1", true};
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cvar_t vid_config_x = {"vid_config_x","800", true};
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cvar_t vid_config_y = {"vid_config_y","600", true};
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cvar_t vid_stretch_by_2 = {"vid_stretch_by_2","1", true};
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cvar_t _windowed_mouse = {"_windowed_mouse","0", true};
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cvar_t vid_fullscreen_mode = {"vid_fullscreen_mode","3", true};
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cvar_t vid_windowed_mode = {"vid_windowed_mode","0", true};
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cvar_t block_switch = {"block_switch","0", true};
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cvar_t vid_window_x = {"vid_window_x", "0", true};
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cvar_t vid_window_y = {"vid_window_y", "0", true};
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int d_con_indirect = 0;
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int numvidmodes;
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vmode_t *pvidmodes;
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static int firstupdate = 1;
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extern regs_t regs;
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void VID_TestMode_f (void);
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void VID_NumModes_f (void);
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void VID_DescribeCurrentMode_f (void);
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void VID_DescribeMode_f (void);
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void VID_DescribeModes_f (void);
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byte vid_current_palette[768]; // save for mode changes
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static qboolean nomodecheck = false;
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unsigned short d_8to16table[256]; // not used in 8 bpp mode
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unsigned d_8to24table[256]; // not used in 8 bpp mode
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void VID_MenuDraw (void);
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void VID_MenuKey (int key);
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/*
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================
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VID_Init
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================
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*/
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void VID_Init (unsigned char *palette)
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{
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Cvar_RegisterVariable (&vid_mode);
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Cvar_RegisterVariable (&vid_wait);
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Cvar_RegisterVariable (&vid_nopageflip);
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Cvar_RegisterVariable (&_vid_wait_override);
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Cvar_RegisterVariable (&_vid_default_mode);
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Cvar_RegisterVariable (&_vid_default_mode_win);
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Cvar_RegisterVariable (&vid_config_x);
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Cvar_RegisterVariable (&vid_config_y);
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Cvar_RegisterVariable (&vid_stretch_by_2);
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Cvar_RegisterVariable (&_windowed_mouse);
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Cvar_RegisterVariable (&vid_fullscreen_mode);
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Cvar_RegisterVariable (&vid_windowed_mode);
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Cvar_RegisterVariable (&block_switch);
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Cmd_AddCommand ("vid_testmode", VID_TestMode_f);
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Cmd_AddCommand ("vid_nummodes", VID_NumModes_f);
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Cmd_AddCommand ("vid_describecurrentmode", VID_DescribeCurrentMode_f);
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Cmd_AddCommand ("vid_describemode", VID_DescribeMode_f);
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Cmd_AddCommand ("vid_describemodes", VID_DescribeModes_f);
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// set up the mode list; note that later inits link in their modes ahead of
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// earlier ones, so the standard VGA modes are always first in the list. This
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// is important because mode 0 must always be VGA mode 0x13
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if (!COM_CheckParm ("-stdvid"))
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VID_InitExtra ();
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VGA_Init ();
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vid_testingmode = 0;
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vid_modenum = vid_mode.value;
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VID_SetMode (vid_modenum, palette);
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vid_realmode = vid_modenum;
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vid_menudrawfn = VID_MenuDraw;
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vid_menukeyfn = VID_MenuKey;
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}
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/*
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=================
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VID_GetModePtr
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=================
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*/
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vmode_t *VID_GetModePtr (int modenum)
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{
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vmode_t *pv;
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pv = pvidmodes;
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if (!pv)
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Sys_Error ("VID_GetModePtr: empty vid mode list");
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while (modenum--)
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{
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pv = pv->pnext;
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if (!pv)
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Sys_Error ("VID_GetModePtr: corrupt vid mode list");
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}
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return pv;
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}
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/*
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================
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VID_NumModes
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================
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*/
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int VID_NumModes ()
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{
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return (numvidmodes);
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}
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/*
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================
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VID_ModeInfo
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================
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*/
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char *VID_ModeInfo (int modenum, char **ppheader)
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{
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static char *badmodestr = "Bad mode number";
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vmode_t *pv;
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pv = VID_GetModePtr (modenum);
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if (!pv)
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{
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if (ppheader)
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*ppheader = NULL;
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return badmodestr;
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}
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else
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{
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if (ppheader)
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*ppheader = pv->header;
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return pv->name;
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}
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}
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/*
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================
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VID_SetMode
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================
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*/
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int VID_SetMode (int modenum, unsigned char *palette)
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{
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int stat;
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vmode_t *pnewmode, *poldmode;
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if ((modenum >= numvidmodes) || (modenum < 0))
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{
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Cvar_SetValue ("vid_mode", (float)vid_modenum);
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nomodecheck = true;
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Con_Printf ("No such video mode: %d\n", modenum);
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nomodecheck = false;
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if (pcurrentmode == NULL)
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{
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modenum = 0; // mode hasn't been set yet, so initialize to base
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// mode since they gave us an invalid initial mode
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}
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else
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{
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return 0;
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}
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}
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pnewmode = VID_GetModePtr (modenum);
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if (pnewmode == pcurrentmode)
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return 1; // already in the desired mode
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// initialize the new mode
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poldmode = pcurrentmode;
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pcurrentmode = pnewmode;
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vid.width = pcurrentmode->width;
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vid.height = pcurrentmode->height;
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vid.aspect = pcurrentmode->aspect;
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vid.rowbytes = pcurrentmode->rowbytes;
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stat = (*pcurrentmode->setmode) (&vid, pcurrentmode);
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if (stat < 1)
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{
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if (stat == 0)
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{
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// real, hard failure that requires resetting the mode
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if (!VID_SetMode (vid_modenum, palette)) // restore prior mode
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Sys_Error ("VID_SetMode: Unable to set any mode, probably "
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"because there's not enough memory available");
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Con_Printf ("Failed to set mode %d\n", modenum);
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return 0;
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}
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else if (stat == -1)
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{
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// not enough memory; just put things back the way they were
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pcurrentmode = poldmode;
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vid.width = pcurrentmode->width;
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vid.height = pcurrentmode->height;
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vid.aspect = pcurrentmode->aspect;
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vid.rowbytes = pcurrentmode->rowbytes;
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return 0;
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}
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else
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{
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Sys_Error ("VID_SetMode: invalid setmode return code %d");
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}
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}
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(*pcurrentmode->setpalette) (&vid, pcurrentmode, palette);
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vid_modenum = modenum;
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Cvar_SetValue ("vid_mode", (float)vid_modenum);
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nomodecheck = true;
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Con_Printf ("%s\n", VID_ModeInfo (vid_modenum, NULL));
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nomodecheck = false;
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vid.recalc_refdef = 1;
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return 1;
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}
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/*
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================
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VID_SetPalette
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================
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*/
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void VID_SetPalette (unsigned char *palette)
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{
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if (palette != vid_current_palette)
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Q_memcpy(vid_current_palette, palette, 768);
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(*pcurrentmode->setpalette)(&vid, pcurrentmode, vid_current_palette);
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}
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/*
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================
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VID_ShiftPalette
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================
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*/
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void VID_ShiftPalette (unsigned char *palette)
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{
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VID_SetPalette (palette);
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}
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/*
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================
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VID_Shutdown
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================
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*/
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void VID_Shutdown (void)
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{
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regs.h.ah = 0;
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regs.h.al = 0x3;
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dos_int86(0x10);
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vid_testingmode = 0;
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}
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/*
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================
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VID_Update
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================
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*/
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void VID_Update (vrect_t *rects)
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{
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if (firstupdate && _vid_default_mode.value)
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{
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if(_vid_default_mode.value >= numvidmodes)
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Cvar_SetValue ("_vid_default_mode", 0);
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firstupdate = 0;
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Cvar_SetValue ("vid_mode", _vid_default_mode.value);
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}
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(*pcurrentmode->swapbuffers)(&vid, pcurrentmode, rects);
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if (!nomodecheck)
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{
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if (vid_testingmode)
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{
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if (realtime >= vid_testendtime)
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{
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VID_SetMode (vid_realmode, vid_current_palette);
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vid_testingmode = 0;
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}
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}
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else
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{
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if (vid_mode.value != vid_realmode)
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{
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VID_SetMode ((int)vid_mode.value, vid_current_palette);
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Cvar_SetValue ("vid_mode", (float)vid_modenum);
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// so if mode set fails, we don't keep on
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// trying to set that mode
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vid_realmode = vid_modenum;
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}
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}
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}
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}
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/*
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=================
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VID_NumModes_f
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=================
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*/
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void VID_NumModes_f (void)
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{
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int nummodes;
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nummodes = VID_NumModes ();
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if (nummodes == 1)
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Con_Printf ("%d video mode is available\n", VID_NumModes ());
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else
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Con_Printf ("%d video modes are available\n", VID_NumModes ());
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}
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/*
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=================
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VID_DescribeCurrentMode_f
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=================
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*/
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void VID_DescribeCurrentMode_f (void)
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{
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Con_Printf ("%s\n", VID_ModeInfo (vid_modenum, NULL));
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}
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/*
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=================
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VID_DescribeMode_f
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=================
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*/
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void VID_DescribeMode_f (void)
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{
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int modenum;
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modenum = Q_atoi (Cmd_Argv(1));
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Con_Printf ("%s\n", VID_ModeInfo (modenum, NULL));
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}
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/*
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=================
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VID_DescribeModes_f
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=================
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*/
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void VID_DescribeModes_f (void)
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{
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int i, nummodes;
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char *pinfo, *pheader;
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vmode_t *pv;
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qboolean na;
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na = false;
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nummodes = VID_NumModes ();
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for (i=0 ; i<nummodes ; i++)
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{
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pv = VID_GetModePtr (i);
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pinfo = VID_ModeInfo (i, &pheader);
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if (pheader)
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Con_Printf ("\n%s\n", pheader);
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if (VGA_CheckAdequateMem (pv->width, pv->height, pv->rowbytes,
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(pv->numpages == 1) || vid_nopageflip.value))
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{
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Con_Printf ("%2d: %s\n", i, pinfo);
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}
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else
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{
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Con_Printf ("**: %s\n", pinfo);
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na = true;
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}
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}
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if (na)
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{
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Con_Printf ("\n[**: not enough system RAM for mode]\n");
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}
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}
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/*
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=================
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VID_GetModeDescription
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=================
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*/
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char *VID_GetModeDescription (int mode)
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{
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char *pinfo, *pheader;
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vmode_t *pv;
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pv = VID_GetModePtr (mode);
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pinfo = VID_ModeInfo (mode, &pheader);
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if (VGA_CheckAdequateMem (pv->width, pv->height, pv->rowbytes,
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(pv->numpages == 1) || vid_nopageflip.value))
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{
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return pinfo;
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}
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else
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{
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return NULL;
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}
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}
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/*
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=================
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VID_TestMode_f
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=================
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*/
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void VID_TestMode_f (void)
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{
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int modenum;
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double testduration;
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if (!vid_testingmode)
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{
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modenum = Q_atoi (Cmd_Argv(1));
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if (VID_SetMode (modenum, vid_current_palette))
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{
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vid_testingmode = 1;
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testduration = Q_atof (Cmd_Argv(2));
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if (testduration == 0)
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testduration = 5.0;
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vid_testendtime = realtime + testduration;
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}
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}
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}
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/*
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================
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D_BeginDirectRect
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================
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*/
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void D_BeginDirectRect (int x, int y, byte *pbitmap, int width, int height)
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{
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if (!vid.direct || !pcurrentmode)
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return;
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if ((width > 24) || (height > 24) || (width < 1) || (height < 1))
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return;
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if (width & 0x03)
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return;
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(*pcurrentmode->begindirectrect) (&vid, pcurrentmode, x, y, pbitmap, width,
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height);
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}
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/*
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================
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D_EndDirectRect
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================
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*/
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void D_EndDirectRect (int x, int y, int width, int height)
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{
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if (!vid.direct || !pcurrentmode)
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return;
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if ((width > 24) || (height > 24) || (width < 1) || (height < 1))
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return;
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if ((width & 0x03) || (height & 0x03))
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return;
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(*pcurrentmode->enddirectrect) (&vid, pcurrentmode, x, y, width, height);
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}
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//===========================================================================
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extern void M_Menu_Options_f (void);
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extern void M_Print (int cx, int cy, char *str);
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extern void M_PrintWhite (int cx, int cy, char *str);
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extern void M_DrawCharacter (int cx, int line, int num);
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extern void M_DrawTransPic (int x, int y, qpic_t *pic);
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extern void M_DrawPic (int x, int y, qpic_t *pic);
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static int vid_line, vid_wmodes, vid_column_size;
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typedef struct
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{
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int modenum;
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char *desc;
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int iscur;
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} modedesc_t;
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#define MAX_COLUMN_SIZE 11
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#define MAX_MODEDESCS (MAX_COLUMN_SIZE*3)
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static modedesc_t modedescs[MAX_MODEDESCS];
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/*
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================
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VID_MenuDraw
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================
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*/
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void VID_MenuDraw (void)
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{
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qpic_t *p;
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char *ptr;
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int nummodes, i, j, column, row, dup;
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char temp[100];
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vid_wmodes = 0;
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nummodes = VID_NumModes ();
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p = Draw_CachePic ("gfx/vidmodes.lmp");
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M_DrawPic ( (320-p->width)/2, 4, p);
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for (i=0 ; i<nummodes ; i++)
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{
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if (vid_wmodes < MAX_MODEDESCS)
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|
{
|
|
if (i != 1)
|
|
{
|
|
ptr = VID_GetModeDescription (i);
|
|
|
|
if (ptr)
|
|
{
|
|
dup = 0;
|
|
|
|
for (j=0 ; j<vid_wmodes ; j++)
|
|
{
|
|
if (!strcmp (modedescs[j].desc, ptr))
|
|
{
|
|
if (modedescs[j].modenum != 0)
|
|
{
|
|
modedescs[j].modenum = i;
|
|
dup = 1;
|
|
|
|
if (i == vid_modenum)
|
|
modedescs[j].iscur = 1;
|
|
}
|
|
else
|
|
{
|
|
dup = 1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!dup)
|
|
{
|
|
modedescs[vid_wmodes].modenum = i;
|
|
modedescs[vid_wmodes].desc = ptr;
|
|
modedescs[vid_wmodes].iscur = 0;
|
|
|
|
if (i == vid_modenum)
|
|
modedescs[vid_wmodes].iscur = 1;
|
|
|
|
vid_wmodes++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
vid_column_size = (vid_wmodes + 2) / 3;
|
|
|
|
column = 16;
|
|
row = 36;
|
|
|
|
for (i=0 ; i<vid_wmodes ; i++)
|
|
{
|
|
if (modedescs[i].iscur)
|
|
M_PrintWhite (column, row, modedescs[i].desc);
|
|
else
|
|
M_Print (column, row, modedescs[i].desc);
|
|
|
|
row += 8;
|
|
|
|
if ((i % vid_column_size) == (vid_column_size - 1))
|
|
{
|
|
column += 13*8;
|
|
row = 36;
|
|
}
|
|
}
|
|
|
|
// line cursor
|
|
if (vid_testingmode)
|
|
{
|
|
sprintf (temp, "TESTING %s",
|
|
modedescs[vid_line].desc);
|
|
M_Print (13*8, 36 + MAX_COLUMN_SIZE * 8 + 8*4, temp);
|
|
M_Print (9*8, 36 + MAX_COLUMN_SIZE * 8 + 8*6,
|
|
"Please wait 5 seconds...");
|
|
}
|
|
else
|
|
{
|
|
M_Print (9*8, 36 + MAX_COLUMN_SIZE * 8 + 8,
|
|
"Press Enter to set mode");
|
|
M_Print (6*8, 36 + MAX_COLUMN_SIZE * 8 + 8*3,
|
|
"T to test mode for 5 seconds");
|
|
ptr = VID_GetModeDescription (vid_modenum);
|
|
sprintf (temp, "D to make %s the default", ptr);
|
|
M_Print (6*8, 36 + MAX_COLUMN_SIZE * 8 + 8*5, temp);
|
|
ptr = VID_GetModeDescription ((int)_vid_default_mode.value);
|
|
|
|
if (ptr)
|
|
{
|
|
sprintf (temp, "Current default is %s", ptr);
|
|
M_Print (7*8, 36 + MAX_COLUMN_SIZE * 8 + 8*6, temp);
|
|
}
|
|
|
|
M_Print (15*8, 36 + MAX_COLUMN_SIZE * 8 + 8*8,
|
|
"Esc to exit");
|
|
|
|
row = 36 + (vid_line % vid_column_size) * 8;
|
|
column = 8 + (vid_line / vid_column_size) * 13*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_UPARROW:
|
|
S_LocalSound ("misc/menu1.wav");
|
|
vid_line--;
|
|
|
|
if (vid_line < 0)
|
|
vid_line = vid_wmodes - 1;
|
|
break;
|
|
|
|
case K_DOWNARROW:
|
|
S_LocalSound ("misc/menu1.wav");
|
|
vid_line++;
|
|
|
|
if (vid_line >= vid_wmodes)
|
|
vid_line = 0;
|
|
break;
|
|
|
|
case K_LEFTARROW:
|
|
S_LocalSound ("misc/menu1.wav");
|
|
vid_line -= vid_column_size;
|
|
|
|
if (vid_line < 0)
|
|
{
|
|
vid_line += ((vid_wmodes + (vid_column_size - 1)) /
|
|
vid_column_size) * vid_column_size;
|
|
|
|
while (vid_line >= vid_wmodes)
|
|
vid_line -= vid_column_size;
|
|
}
|
|
break;
|
|
|
|
case K_RIGHTARROW:
|
|
S_LocalSound ("misc/menu1.wav");
|
|
vid_line += vid_column_size;
|
|
|
|
if (vid_line >= vid_wmodes)
|
|
{
|
|
vid_line -= ((vid_wmodes + (vid_column_size - 1)) /
|
|
vid_column_size) * vid_column_size;
|
|
|
|
while (vid_line < 0)
|
|
vid_line += vid_column_size;
|
|
}
|
|
break;
|
|
|
|
case K_ENTER:
|
|
S_LocalSound ("misc/menu1.wav");
|
|
VID_SetMode (modedescs[vid_line].modenum, vid_current_palette);
|
|
break;
|
|
|
|
case 'T':
|
|
case 't':
|
|
S_LocalSound ("misc/menu1.wav");
|
|
if (VID_SetMode (modedescs[vid_line].modenum, vid_current_palette))
|
|
{
|
|
vid_testingmode = 1;
|
|
vid_testendtime = realtime + 5.0;
|
|
}
|
|
break;
|
|
|
|
case 'D':
|
|
case 'd':
|
|
S_LocalSound ("misc/menu1.wav");
|
|
firstupdate = 0;
|
|
Cvar_SetValue ("_vid_default_mode", vid_modenum);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|