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- /*
- 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_amiga.c
- **
- ** QuakeWorld Server for Amiga M68k and Amiga PowerPC
- **
- */
-
- #pragma amiga-align
- #include <exec/types.h>
- #include <exec/memory.h>
- #include <exec/execbase.h>
- #include <dos/dos.h>
- #include <utility/tagitem.h>
- #include <graphics/gfxbase.h>
- #include <devices/timer.h>
- #include <clib/alib_protos.h>
- #include <proto/exec.h>
- #include <proto/dos.h>
- #include <proto/timer.h>
- #ifdef __PPC__
- #ifdef WOS
- #include <clib/powerpc_protos.h>
- #else
- #include <powerup/ppclib/time.h>
- #include <powerup/gcclib/powerup_protos.h>
- #endif
- #endif
- #pragma default-align
-
- /* Quake includes */
- #include "qwsvdef.h"
-
-
- cvar_t sys_nostdout = {"sys_nostdout","0"};
- cvar_t sys_extrasleep = {"sys_extrasleep","0"};
- static quakeparms_t parms;
- struct Library *TimerBase = NULL;
-
- static struct timerequest *timerio;
- static int membase_offs;
- static BPTR amiga_stdin,amiga_stdout;
-
- extern void NET_Select(unsigned long);
-
-
- /*
- * AMIGA only functions
- */
-
- #if defined(__PPC__) && !defined(WOS)
- /*
- * This is a GetSysTimePPC-emulation for PowerUp, as calling
- * M68k-GetSysTime() via context switch needs too much time.
- */
- static void *PowerUpTimer = NULL;
- static ULONG TicksPerSec[2];
-
-
- /*
- ================
- InitSysTimePPC
- ================
- */
- static void InitSysTimePPC(void)
- {
- struct TagItem ti[2];
- ULONG r[2];
-
- ti[0].ti_Tag = PPCTIMERTAG_CPU;
- ti[0].ti_Data = TRUE;
- ti[1].ti_Tag = TAG_END;
- if (!(PowerUpTimer = PPCCreateTimerObject(ti)))
- Sys_Error("Can't create TimerObject");
- PPCGetTimerObject(PowerUpTimer,PPCTIMERTAG_TICKSPERSEC,TicksPerSec);
- }
-
- /*
- ================
- ExitSysTimePPC
- ================
- */
- static void ExitSysTimePPC(void)
- {
- if (PowerUpTimer) {
- PPCDeleteTimerObject(PowerUpTimer);
- PowerUpTimer = NULL;
- }
- }
-
- /*
- ================
- GetSysTimePPC
- ================
- */
- void GetSysTimePPC(struct timeval *tv)
- {
- static ULONG mill[2] = { 0,1000000 };
- ULONG r[2],secs[2];
-
- if (PowerUpTimer) {
- PPCGetTimerObject(PowerUpTimer,PPCTIMERTAG_CURRENTTICKS,r);
- secs[0] = r[0];
- secs[1] = r[1];
- PPCDivu64p((int *)secs,(int *)TicksPerSec);
- tv->tv_secs = secs[1];
- PPCModu64p((int *)r,(int *)TicksPerSec);
- PPCMulu64p((int *)r,(int *)mill);
- PPCDivu64p((int *)r,(int *)TicksPerSec);
- tv->tv_micro = r[1];
- }
- }
- #endif
-
-
- /*
- ================
- cleanup
- ================
- */
- static void cleanup(int rc)
- {
- SetMode(amiga_stdin,0); /* put console back into normal CON mode */
-
- if (parms.membase)
- FreeMem((char *)parms.membase-membase_offs,parms.memsize+3*32);
-
- if (TimerBase) {
- if (!CheckIO((struct IORequest *)timerio)) {
- AbortIO((struct IORequest *)timerio);
- WaitIO((struct IORequest *)timerio);
- }
- CloseDevice((struct IORequest *)timerio);
- DeletePort(timerio->tr_node.io_Message.mn_ReplyPort);
- DeleteExtIO((struct IORequest *)timerio);
- }
-
- #if defined(__PPC__) && !defined(WOS)
- /* cleanup GetSysTimePPC() emulation for PowerUp */
- ExitSysTimePPC();
- #endif
-
- exit(rc);
- }
-
-
- /*
- ================
- usleep
- ================
- */
- void usleep(unsigned long timeout)
- {
- timerio->tr_node.io_Command = TR_ADDREQUEST;
- timerio->tr_time.tv_secs = timeout / 1000000;
- timerio->tr_time.tv_micro = timeout % 1000000;
- SendIO((struct IORequest *)timerio);
- WaitIO((struct IORequest *)timerio);
- }
-
-
- /*
- ================
- strcasecmp
- ================
- */
- int strcasecmp(const char *str1, const char *str2)
- {
- while(tolower((unsigned char)*str1) == tolower((unsigned char)*str2)) {
- if(!*str1) return(0);
- str1++;str2++;
- }
- return(tolower(*(unsigned char *)str1)-tolower(*(unsigned char *)str2));
- }
-
-
- /*
- ================
- strncasecmp
- ================
- */
- int strncasecmp(const char *str1, const char *str2, size_t n)
- {
- if (n==0) return 0;
- while (--n && tolower((unsigned char)*str1)==tolower((unsigned char)*str2)){
- if (!*str1) return(0);
- str1++; str2++;
- }
- return(tolower(*(unsigned char *)str1)-tolower(*(unsigned char *)str2));
- }
-
-
- /*
- ================
- bzero
- ================
- */
- void bzero(void *p,size_t n)
- {
- memset(p,0,n);
- }
-
-
- /*
- ===============================================================================
-
- REQUIRED SYS FUNCTIONS
-
- ===============================================================================
- */
-
- /*
- ============
- Sys_FileTime
-
- returns -1 if not present
- ============
- */
- int Sys_FileTime (char *path)
- {
- BPTR lck;
- int t = -1;
-
- if (lck = Lock(path,ACCESS_READ)) {
- t = 1;
- UnLock(lck);
- }
-
- return t;
- }
-
-
- /*
- ============
- Sys_mkdir
-
- ============
- */
- void Sys_mkdir (char *path)
- {
- BPTR lck;
-
- if (lck = CreateDir(path))
- UnLock(lck);
- }
-
-
- /*
- ================
- Sys_DoubleTime
- ================
- */
- double Sys_DoubleTime (void)
- {
- static ULONG secbase = 0;
- struct timeval tv;
-
- #ifdef __PPC__
- GetSysTimePPC(&tv);
- #else
- GetSysTime(&tv);
- #endif
- if (!secbase) {
- secbase = tv.tv_secs;
- return (double)tv.tv_micro/1000000.0;
- }
- return (double)(tv.tv_secs-secbase) + (((double)tv.tv_micro) / 1000000.0);
- }
-
- /*
- ================
- Sys_Error
- ================
- */
- void Sys_Error (char *error, ...)
- {
- va_list argptr;
-
- printf("Fatal error: ");
- va_start(argptr,error);
- vprintf(error,argptr);
- va_end(argptr);
- printf("\n");
- cleanup(1);
- }
-
- /*
- ================
- Sys_Printf
- ================
- */
- void Sys_Printf (char *fmt, ...)
- {
- va_list argptr;
- static char text[2048];
- unsigned char *p;
-
- va_start(argptr,fmt);
- vsprintf(text,fmt,argptr);
- va_end(argptr);
-
- if (strlen(text) > sizeof(text))
- Sys_Error("memory overwrite in Sys_Printf");
-
- if (sys_nostdout.value)
- return;
-
- for (p = (unsigned char *)text; *p; p++) {
- *p &= 0x7f;
- if ((*p > 128 || *p < 32) && *p != 10 && *p != 13 && *p != 9)
- printf("[%02x]", *p);
- else
- putc(*p, stdout);
- }
- fflush(stdout);
- }
-
-
- /*
- ================
- Sys_Quit
- ================
- */
- void Sys_Quit (void)
- {
- cleanup(0); // appkit isn't running
- }
-
-
- /*
- ================
- Sys_ConsoleInput
-
- Checks for a complete line of text typed in at the console, then forwards
- it to the host command processor
- ================
- */
- char *Sys_ConsoleInput (void)
- {
- static const char *backspace = "\b \b";
- static char text[256];
- static int len = 0;
- char ch;
-
- while (WaitForChar(amiga_stdin,10) == DOSTRUE) {
- Read(amiga_stdin,&ch,1); /* note: console is in RAW mode! */
- if (ch == '\r') {
- ch = '\n';
- Write(amiga_stdout,&ch,1);
- text[len] = 0;
- len = 0;
- return text;
- }
- else if (ch == '\b') {
- if (len > 0) {
- len--;
- Write(amiga_stdout,(char *)backspace,3);
- }
- }
- else {
- if (len < sizeof(text)-1) {
- Write(amiga_stdout,&ch,1);
- text[len++] = ch;
- }
- }
- }
- return NULL;
- }
-
- /*
- =============
- Sys_Init
-
- Quake calls this so the system can register variables before host_hunklevel
- is marked
- =============
- */
- void Sys_Init (void)
- {
- Cvar_RegisterVariable (&sys_nostdout);
- Cvar_RegisterVariable (&sys_extrasleep);
- }
-
- /*
- =============
- main
- =============
- */
- main(int argc, char *argv[])
- {
- char cwd[128];
- struct MsgPort *timerport;
- int i;
- double time, oldtime, newtime;
-
- memset(&parms,0,sizeof(parms));
- parms.memsize = 16*1024*1024; /* 16MB is default */
-
- COM_InitArgv (argc, argv);
- parms.argc = com_argc;
- parms.argv = com_argv;
-
- /* Amiga Init */
- amiga_stdin = Input();
- amiga_stdout = Output();
- if (!COM_CheckParm("-noconsole"))
- SetMode(amiga_stdin,1); /* put console into RAW mode */
-
- #if defined(__PPC__) && !defined(WOS)
- /* init GetSysTimePPC() emulation for PowerUp */
- InitSysTimePPC();
- #endif
-
- /* open timer.device */
- if (timerport = CreatePort(NULL,0)) {
- if (timerio = (struct timerequest *)
- CreateExtIO(timerport,sizeof(struct timerequest))) {
- if (OpenDevice(TIMERNAME,UNIT_MICROHZ,
- (struct IORequest *)timerio,0) == 0) {
- TimerBase = (struct Library *)timerio->tr_node.io_Device;
- }
- else {
- DeleteExtIO((struct IORequest *)timerio);
- DeletePort(timerport);
- }
- }
- else
- DeletePort(timerport);
- }
- if (!TimerBase)
- Sys_Error("Can't open timer.device");
- usleep(1); /* don't delete, otherwise we can't do timer.device cleanup */
-
- /* check arguments */
- if (i = COM_CheckParm("-mem"))
- parms.memsize = (int)(Q_atof(com_argv[i+1]) * 1024 * 1024);
-
- /* alloc 16-byte aligned quake memory */
- parms.memsize = (parms.memsize+15)&~15;
- if ((parms.membase = AllocMem((ULONG)parms.memsize,MEMF_FAST)) == NULL)
- Sys_Error("Can't allocate %ld bytes\n", parms.memsize);
- if ((ULONG)parms.membase & 8)
- membase_offs = 40; /* guarantee 16-byte aligment */
- else
- membase_offs = 32;
- parms.membase = (char *)parms.membase + membase_offs;
- parms.memsize -= 3*32;
-
- /* get name of current directory */
- GetCurrentDirName(cwd,128);
- parms.basedir = cwd;
-
- SV_Init (&parms);
-
- /* run one frame immediately for first heartbeat */
- SV_Frame (0.1);
-
- /*
- * main loop
- */
- oldtime = Sys_DoubleTime() - 0.1;
- while (1) {
- /* wait 100 usec for a pending network packet */
- NET_Select(100);
-
- /* find time passed since last cycle */
- newtime = Sys_DoubleTime();
- time = newtime - oldtime;
- oldtime = newtime;
-
- SV_Frame (time);
-
- /* extrasleep is just a way to generate a fucked up connection on purpose */
- if (sys_extrasleep.value)
- usleep(sys_extrasleep.value);
- }
- }
-