diff options
Diffstat (limited to 'WinQuake/sys_sun.c')
| -rw-r--r-- | WinQuake/sys_sun.c | 352 |
1 files changed, 352 insertions, 0 deletions
diff --git a/WinQuake/sys_sun.c b/WinQuake/sys_sun.c new file mode 100644 index 0000000..48cf828 --- /dev/null +++ b/WinQuake/sys_sun.c @@ -0,0 +1,352 @@ +/* +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_sun.h -- Sun system driver + +#include "quakedef.h" +#include "errno.h" +#include <sys/types.h> +#include <sys/time.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <sys/param.h> +#include <fcntl.h> +#include <stddef.h> +#include <sys/types.h> +#include <fcntl.h> +#include <sys/mman.h> +#include <stdio.h> + +qboolean isDedicated; + +/* +=============================================================================== + +FILE IO + +=============================================================================== +*/ + +#define MAX_HANDLES 10 + +typedef struct +{ + FILE *hFile; + char *pMap; + int nLen; + int nPos; +} MEMFILE; + +MEMFILE sys_handles[MAX_HANDLES]; + +int findhandle (void) +{ + int i; + + for (i=1 ; i<MAX_HANDLES ; i++) + if (!sys_handles[i].hFile) + 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].hFile = f; + sys_handles[i].nLen = filelength(f); + sys_handles[i].nPos = 0; + sys_handles[i].pMap = mmap( 0, sys_handles[i].nLen, PROT_READ, MAP_SHARED, fileno( sys_handles[i].hFile ), 0 ); + if (!sys_handles[i].pMap || (sys_handles[i].pMap == (char *)-1)) + { + printf( "mmap %s failed!", path ); + sys_handles[i].pMap = NULL; + } + + *hndl = i; + + return( sys_handles[i].nLen ); +} + +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].hFile = f; + sys_handles[i].nLen = 0; + sys_handles[i].nPos = 0; + sys_handles[i].pMap = NULL; + + return i; +} + +void Sys_FileClose (int handle) +{ + if (sys_handles[handle].pMap) + if (munmap( sys_handles[handle].pMap, sys_handles[handle].nLen ) != 0) + printf( "failed to unmap handle %d\n", handle ); + + fclose (sys_handles[handle].hFile); + sys_handles[handle].hFile = NULL; +} + +void Sys_FileSeek (int handle, int position) +{ + if (sys_handles[handle].pMap) + { + sys_handles[handle].nPos = position; + } + else fseek (sys_handles[handle].hFile, position, SEEK_SET); +} + +int Sys_FileRead (int handle, void *dest, int count) +{ + if (sys_handles[handle].pMap) + { + int nPos = sys_handles[handle].nPos; + if (count < 0) count = 0; + if (nPos + count > sys_handles[handle].nLen) + count = sys_handles[handle].nLen - nPos; + memcpy( dest, &sys_handles[handle].pMap[nPos], count ); + sys_handles[handle].nPos = nPos + count; + return( count ); + } + else return fread (dest, 1, count, sys_handles[handle].hFile); +} + +int Sys_FileWrite (int handle, void *data, int count) +{ + if (sys_handles[handle].pMap) + Sys_Error( "Attempted to write to read-only file %d!\n", handle ); + return fwrite (data, 1, count, sys_handles[handle].hFile); +} + +int Sys_FileTime (char *path) +{ + FILE *f; + + f = fopen(path, "rb"); + if (f) + { + fclose(f); + return 1; + } + + return -1; +} + +void Sys_mkdir (char *path) +{ + mkdir( path, 0777 ); +} + +/* +=============================================================================== + +SYSTEM IO + +=============================================================================== +*/ + +void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length) +{ + + int r; + unsigned long addr; + int psize = getpagesize(); + + addr = (startaddr & ~(psize-1)) - psize; + +// fprintf(stderr, "writable code %lx(%lx)-%lx, length=%lx\n", startaddr, +// addr, startaddr+length, length); + + r = mprotect((char*)addr, length + startaddr - addr + psize, 7); + + if (r < 0) + Sys_Error("Protection change failed\n"); + +} + + +void Sys_Error (char *error, ...) +{ + va_list argptr; + + printf ("Sys_Error: "); + va_start (argptr,error); + vprintf (error,argptr); + va_end (argptr); + printf ("\n"); + Host_Shutdown(); + exit (1); +} + +void Sys_Printf (char *fmt, ...) +{ + va_list argptr; + + va_start (argptr,fmt); + vprintf (fmt,argptr); + va_end (argptr); +} + +void Sys_Quit (void) +{ + Host_Shutdown(); + exit (0); +} + +double Sys_FloatTime (void) +{ + struct timeval tp; + struct timezone tzp; + static int secbase; + + gettimeofday(&tp, &tzp); + + if (!secbase) + { + secbase = tp.tv_sec; + return tp.tv_usec/1000000.0; + } + + return (tp.tv_sec - secbase) + tp.tv_usec/1000000.0; +} + +char *Sys_ConsoleInput (void) +{ + static char text[256]; + int len; + fd_set readfds; + int ready; + struct timeval timeout; + + timeout.tv_sec = 0; + timeout.tv_usec = 0; + FD_ZERO(&readfds); + FD_SET(0, &readfds); + ready = select(1, &readfds, 0, 0, &timeout); + + if (ready>0) + { + len = read (0, text, sizeof(text)); + if (len >= 1) + { + text[len-1] = 0; // rip off the /n and terminate + return text; + } + } + + return 0; +} + +void Sys_Sleep (void) +{ +} + +#if !id386 +void Sys_HighFPPrecision (void) +{ +} + +void Sys_LowFPPrecision (void) +{ +} +#endif + +void Sys_Init(void) +{ +#if id386 + Sys_SetFPCW(); +#endif +} + +//============================================================================= + +int main (int argc, char **argv) +{ + static quakeparms_t parms; + float time, oldtime, newtime; + + parms.memsize = 16*1024*1024; + parms.membase = malloc (parms.memsize); + parms.basedir = "."; + parms.cachedir = NULL; + + COM_InitArgv (argc, argv); + + parms.argc = com_argc; + parms.argv = com_argv; + + printf ("Host_Init\n"); + Host_Init (&parms); + + Sys_Init(); + + // unroll the simulation loop to give the video side a chance to see _vid_default_mode + Host_Frame( 0.1 ); + VID_SetDefaultMode(); + + oldtime = Sys_FloatTime(); + while (1) + { + newtime = Sys_FloatTime(); + Host_Frame (newtime - oldtime); + oldtime = newtime; + } + return 0; +} + + + + |