ref: 02611e064eceed8d8cda8cc4d6e60f8f1833ea72
dir: /u/sys_null.c/
/* 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 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ // sys_null.h -- null system driver to aid porting efforts #include "quakedef.h" #include "errno.h" /* =============================================================================== FILE IO =============================================================================== */ #define MAX_HANDLES 10 FILE *sys_handles[MAX_HANDLES]; int findhandle (void) { int i; for (i=1 ; i<MAX_HANDLES ; i++) if (!sys_handles[i]) return i; Sys_Error ("out of handles"); return -1; } /* ================ filelength ================ */ int filelength (FILE *f) { int pos; int end; pos = ftell (f); fseek (f, 0, SEEK_END); end = ftell (f); fseek (f, pos, SEEK_SET); return end; } int Sys_FileOpenRead (char *path, int *hndl) { FILE *f; int i; i = findhandle (); f = fopen(path, "rb"); if (!f) { *hndl = -1; return -1; } sys_handles[i] = f; *hndl = i; return filelength(f); } int Sys_FileOpenWrite (char *path) { FILE *f; int i; i = findhandle (); f = fopen(path, "wb"); if (!f) Sys_Error ("Error opening %s: %s", path,strerror(errno)); sys_handles[i] = f; return i; } void Sys_FileClose (int handle) { fclose (sys_handles[handle]); sys_handles[handle] = NULL; } void Sys_FileSeek (int handle, int position) { fseek (sys_handles[handle], position, SEEK_SET); } int Sys_FileRead (int handle, void *dest, int count) { return fread (dest, 1, count, sys_handles[handle]); } int Sys_FileWrite (int handle, void *data, int count) { return fwrite (data, 1, count, sys_handles[handle]); } int Sys_FileTime (char *path) { FILE *f; f = fopen(path, "rb"); if (f) { fclose(f); return 1; } return -1; } void Sys_mkdir (char *path) { } /* =============================================================================== SYSTEM IO =============================================================================== */ void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length) { } void Sys_Error (char *error, ...) { va_list argptr; printf ("Sys_Error: "); va_start (argptr,error); vprintf (error,argptr); va_end (argptr); printf ("\n"); exit (1); } void Sys_Printf (char *fmt, ...) { va_list argptr; va_start (argptr,fmt); vprintf (fmt,argptr); va_end (argptr); } void Sys_Quit (void) { exit (0); } double Sys_FloatTime (void) { static double t; t += 0.1; return t; } char *Sys_ConsoleInput (void) { return NULL; } void Sys_Sleep (void) { } void Sys_SendKeyEvents (void) { } void Sys_HighFPPrecision (void) { } void Sys_LowFPPrecision (void) { } //============================================================================= void main (int argc, char **argv) { static quakeparms_t parms; parms.memsize = 8*1024*1024; parms.membase = malloc (parms.memsize); parms.basedir = "."; COM_InitArgv (argc, argv); parms.argc = com_argc; parms.argv = com_argv; printf ("Host_Init\n"); Host_Init (&parms); while (1) { Host_Frame (0.1); } }