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Common cl_sys_sdl for win32 and *nix, replaces cl_sys_win and cl_sys_unix for SDL targets.
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source/cl_sys_sdl.c
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310
source/cl_sys_sdl.c
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/*
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cl_sys_sdl.c
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(description)
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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:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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$Id$
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <SDL\SDL.H>
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#include <SDL\SDL_main.H>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <io.h>
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#include <conio.h>
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#ifndef WIN32
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#include <unistd.h>
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#include <stdarg.h>
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#include <string.h>
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#include <ctype.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <sys/mman.h>
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#endif
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#include "sys.h"
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#include "qargs.h"
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#include "quakedef.h"
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#include "qargs.h"
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#include "client.h"
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qboolean is_server = false;
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int starttime;
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#ifdef WIN32
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#include "winquake.h"
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// fixme: minimized is not currently supported under SDL
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qboolean Minimized=false;
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void MaskExceptions (void);
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#endif
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#define BASEDIR "."
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void Sys_DebugLog(char *file, char *fmt, ...)
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{
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va_list argptr;
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static char data[1024]; // why static ?
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int fd;
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va_start (argptr, fmt);
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vsnprintf (data, sizeof(data), fmt, argptr);
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va_end (argptr);
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fd = open (file, O_WRONLY | O_CREAT | O_APPEND, 0666);
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write (fd, data, strlen(data));
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close (fd);
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};
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/*
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===============================================================================
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FILE IO
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===============================================================================
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*/
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int Sys_FileTime (char *path)
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{
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FILE *f;
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int t, retval;
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f = fopen(path, "rb");
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if (f)
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{
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fclose(f);
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retval = 1;
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}
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else
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{
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retval = -1;
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}
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return retval;
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}
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/*
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===============================================================================
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SYSTEM IO
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===============================================================================
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*/
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/*
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================
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Sys_MakeCodeWriteable
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================
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*/
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void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length)
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{
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#ifdef WIN32
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DWORD flOldProtect;
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//@@@ copy on write or just read-write?
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if (!VirtualProtect((LPVOID)startaddr, length, PAGE_READWRITE, &flOldProtect))
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Sys_Error("Protection change failed\n");
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#else
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int r;
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unsigned long addr;
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int psize = getpagesize();
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addr = (startaddr & ~(psize-1)) - psize;
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// fprintf(stderr, "writable code %lx(%lx)-%lx, length=%lx\n", startaddr,
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// addr, startaddr+length, length);
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r = mprotect((char*)addr, length + startaddr - addr + psize, 7);
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if (r < 0)
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Sys_Error("Protection change failed\n");
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#endif
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}
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/*
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================
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Sys_Init
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================
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*/
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void Sys_Init (void)
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{
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OSVERSIONINFO vinfo;
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#ifdef USE_INTEL_ASM
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#ifdef WIN32
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MaskExceptions ();
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#endif
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Sys_SetFPCW ();
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#endif
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#ifdef WIN32
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// make sure the timer is high precision, otherwise
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// NT gets 18ms resolution
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timeBeginPeriod( 1 );
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vinfo.dwOSVersionInfoSize = sizeof(vinfo);
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if (!GetVersionEx (&vinfo))
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Sys_Error ("Couldn't get OS info");
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if ((vinfo.dwMajorVersion < 4) ||
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(vinfo.dwPlatformId == VER_PLATFORM_WIN32s))
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{
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Sys_Error ("This version of " PROGRAM " requires at least Win95 or NT 4.0");
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}
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#endif
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}
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void Sys_Error (char *error, ...)
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{
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va_list argptr;
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char text[1024];//, text2[1024];
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#ifndef WIN32
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fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~O_NONBLOCK);
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#endif
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va_start (argptr, error);
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vsnprintf (text, sizeof(text), error, argptr);
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va_end (argptr);
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#ifdef WIN32
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MessageBox(NULL, text, "Error", 0 /* MB_OK */ );
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#endif
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fprintf(stderr, "Error: %s\n", text);
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Host_Shutdown ();
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exit (1);
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}
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void Sys_Printf (char *fmt, ...)
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{
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va_list argptr;
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va_start (argptr,fmt);
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vprintf (fmt, argptr);
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va_end (argptr);
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}
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void Sys_Quit (void)
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{
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Host_Shutdown();
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exit (0);
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}
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char *Sys_ConsoleInput (void)
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{
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return NULL;
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}
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void Sys_Sleep (void)
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{
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}
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C_LINKAGE int SDL_main(int c, char **v)
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{
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double time, oldtime, newtime;
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quakeparms_t parms;
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int j;
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static char cwd[1024];
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int t;
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#ifndef WIN32
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signal(SIGFPE, SIG_IGN);
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#endif
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memset(&parms, 0, sizeof(parms));
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// COM_InitArgv(c, v);
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// parms.argc = argc;
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// parms.argv = argv;
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COM_InitArgv(c, v);
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parms.argc = com_argc;
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parms.argv = com_argv;
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parms.memsize = 16*1024*1024;
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j = COM_CheckParm("-mem");
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if (j)
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parms.memsize = (int) (atof(com_argv[j+1]) * 1024 * 1024);
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parms.membase = malloc (parms.memsize);
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if (!parms.membase) {
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printf("Can't allocate memory for zone.\n");
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return 1;
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}
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/* if (!GetCurrentDirectory (sizeof(cwd), cwd))
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Sys_Error ("Couldn't determine current directory");
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if (cwd[strlen(cwd)-1] == '/')
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cwd[strlen(cwd)-1] = 0;
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parms.basedir = cwd;
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*/
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parms.basedir = BASEDIR;
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#ifndef WIN32
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noconinput = COM_CheckParm("-noconinput");
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if (!noconinput)
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fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | O_NONBLOCK);
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if (COM_CheckParm("-nostdout")) Cvar_Set(sys_nostdout, "1");
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#endif
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Host_Init(&parms);
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oldtime = Sys_DoubleTime ();
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while (1)
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{
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// find time spent rendering last frame
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newtime = Sys_DoubleTime ();
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time = newtime - oldtime;
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Host_Frame(time);
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oldtime = newtime;
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}
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}
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