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ioq3quest/code/unix/unix_main.c
Tim Angus 80919a1ce3 * Silly little patch to convert Q3 style color codes to ANSI escape codes. Note 
this doesn't work too well with baseq3 since it logs color strings with no
  color termination.
2005-10-19 01:51:19 +00:00

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code 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.
Quake III Arena source code 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 Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
#include <limits.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/stat.h>
#include <string.h>
#include <ctype.h>
#include <sys/wait.h>
#include <sys/mman.h>
#include <errno.h>
#include <libgen.h> // dirname
#ifdef __linux__ // rb010123
#include <mntent.h>
#endif
#include <dlfcn.h>
#ifdef __linux__
#include <fpu_control.h> // bk001213 - force dumps on divide by zero
#endif
// FIXME TTimo should we gard this? most *nix system should comply?
#include <termios.h>
#include "../game/q_shared.h"
#include "../qcommon/qcommon.h"
#include "../renderer/tr_public.h"
#include "linux_local.h" // bk001204
// Structure containing functions exported from refresh DLL
refexport_t re;
unsigned sys_frame_time;
qboolean stdin_active = qtrue;
// =============================================================
// tty console variables
// =============================================================
// enable/disabled tty input mode
// NOTE TTimo this is used during startup, cannot be changed during run
static cvar_t *ttycon = NULL;
// general flag to tell about tty console mode
static qboolean ttycon_on = qfalse;
// when printing general stuff to stdout stderr (Sys_Printf)
// we need to disable the tty console stuff
// this increments so we can recursively disable
static int ttycon_hide = 0;
// some key codes that the terminal may be using
// TTimo NOTE: I'm not sure how relevant this is
static int tty_erase;
static int tty_eof;
static struct termios tty_tc;
static field_t tty_con;
static cvar_t *ttycon_ansicolor = NULL;
static qboolean ttycon_color_on = qfalse;
// history
// NOTE TTimo this is a bit duplicate of the graphical console history
// but it's safer and faster to write our own here
#define TTY_HISTORY 32
static field_t ttyEditLines[TTY_HISTORY];
static int hist_current = -1, hist_count = 0;
// =======================================================================
// General routines
// =======================================================================
// bk001207
#define MEM_THRESHOLD 96*1024*1024
/*
==================
Sys_LowPhysicalMemory()
==================
*/
qboolean Sys_LowPhysicalMemory() {
//MEMORYSTATUS stat;
//GlobalMemoryStatus (&stat);
//return (stat.dwTotalPhys <= MEM_THRESHOLD) ? qtrue : qfalse;
return qfalse; // bk001207 - FIXME
}
/*
==================
Sys_FunctionCmp
==================
*/
int Sys_FunctionCmp(void *f1, void *f2) {
return qtrue;
}
/*
==================
Sys_FunctionCheckSum
==================
*/
int Sys_FunctionCheckSum(void *f1) {
return 0;
}
/*
==================
Sys_MonkeyShouldBeSpanked
==================
*/
int Sys_MonkeyShouldBeSpanked( void ) {
return 0;
}
void Sys_BeginProfiling( void ) {
}
/*
=================
Sys_In_Restart_f
Restart the input subsystem
=================
*/
void Sys_In_Restart_f( void )
{
IN_Shutdown();
IN_Init();
}
// =============================================================
// tty console routines
// NOTE: if the user is editing a line when something gets printed to the early console then it won't look good
// so we provide tty_Clear and tty_Show to be called before and after a stdout or stderr output
// =============================================================
// flush stdin, I suspect some terminals are sending a LOT of shit
// FIXME TTimo relevant?
void tty_FlushIn( void )
{
char key;
while (read(0, &key, 1)!=-1);
}
// do a backspace
// TTimo NOTE: it seems on some terminals just sending '\b' is not enough
// so for now, in any case we send "\b \b" .. yeah well ..
// (there may be a way to find out if '\b' alone would work though)
void tty_Back( void )
{
char key;
key = '\b';
write(1, &key, 1);
key = ' ';
write(1, &key, 1);
key = '\b';
write(1, &key, 1);
}
// clear the display of the line currently edited
// bring cursor back to beginning of line
void tty_Hide( void )
{
int i;
assert(ttycon_on);
if (ttycon_hide)
{
ttycon_hide++;
return;
}
if (tty_con.cursor>0)
{
for (i=0; i<tty_con.cursor; i++)
{
tty_Back();
}
}
ttycon_hide++;
}
// show the current line
// FIXME TTimo need to position the cursor if needed??
void tty_Show( void )
{
int i;
assert(ttycon_on);
assert(ttycon_hide>0);
ttycon_hide--;
if (ttycon_hide == 0)
{
if (tty_con.cursor)
{
for (i=0; i<tty_con.cursor; i++)
{
write(1, tty_con.buffer+i, 1);
}
}
}
}
// never exit without calling this, or your terminal will be left in a pretty bad state
void Sys_ConsoleInputShutdown( void )
{
if (ttycon_on)
{
Com_Printf("Shutdown tty console\n");
tcsetattr (0, TCSADRAIN, &tty_tc);
}
}
void Hist_Add(field_t *field)
{
int i;
assert(hist_count <= TTY_HISTORY);
assert(hist_count >= 0);
assert(hist_current >= -1);
assert(hist_current <= hist_count);
// make some room
for (i=TTY_HISTORY-1; i>0; i--)
{
ttyEditLines[i] = ttyEditLines[i-1];
}
ttyEditLines[0] = *field;
if (hist_count<TTY_HISTORY)
{
hist_count++;
}
hist_current = -1; // re-init
}
field_t *Hist_Prev( void )
{
int hist_prev;
assert(hist_count <= TTY_HISTORY);
assert(hist_count >= 0);
assert(hist_current >= -1);
assert(hist_current <= hist_count);
hist_prev = hist_current + 1;
if (hist_prev >= hist_count)
{
return NULL;
}
hist_current++;
return &(ttyEditLines[hist_current]);
}
field_t *Hist_Next( void )
{
assert(hist_count <= TTY_HISTORY);
assert(hist_count >= 0);
assert(hist_current >= -1);
assert(hist_current <= hist_count);
if (hist_current >= 0)
{
hist_current--;
}
if (hist_current == -1)
{
return NULL;
}
return &(ttyEditLines[hist_current]);
}
// =============================================================
// general sys routines
// =============================================================
#if 0
// NOTE TTimo this is not used .. looks interesting though? protection against buffer overflow kind of stuff?
void Sys_Printf (char *fmt, ...)
{
va_list argptr;
char text[1024];
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");
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);
}
}
#endif
// single exit point (regular exit or in case of signal fault)
void Sys_Exit( int ex ) {
Sys_ConsoleInputShutdown();
#ifdef NDEBUG // regular behavior
// We can't do this
// as long as GL DLL's keep installing with atexit...
//exit(ex);
_exit(ex);
#else
// Give me a backtrace on error exits.
assert( ex == 0 );
exit(ex);
#endif
}
void Sys_Quit (void) {
CL_Shutdown ();
fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
Sys_Exit(0);
}
void Sys_Init(void)
{
Cmd_AddCommand ("in_restart", Sys_In_Restart_f);
#if defined __linux__
# if defined __i386__
Cvar_Set( "arch", "linux i386" );
# elif defined __x86_64__
Cvar_Set( "arch", "linux x86_64" );
# elif defined __powerpc64__
Cvar_Set( "arch", "linux ppc64" );
# elif defined __powerpc__
Cvar_Set( "arch", "linux ppc" );
# elif defined __s390__
Cvar_Set( "arch", "linux s390" );
# elif defined __s390x__
Cvar_Set( "arch", "linux s390x" );
# elif defined __ia64__
Cvar_Set( "arch", "linux ia64" );
# elif defined __alpha__
Cvar_Set( "arch", "linux alpha" );
# elif defined __sparc__
Cvar_Set( "arch", "linux sparc" );
# else
# error unsupported architecture
#endif
#elif defined __FreeBSD__
#if defined __i386__ // FreeBSD
Cvar_Set( "arch", "freebsd i386" );
#elif defined __alpha__
Cvar_Set( "arch", "freebsd alpha" );
#else
Cvar_Set( "arch", "freebsd unknown" );
#endif
#elif defined __sun__
#if defined __i386__
Cvar_Set( "arch", "solaris x86" );
#elif defined __sparc__
Cvar_Set( "arch", "solaris sparc" );
#else
Cvar_Set( "arch", "solaris unknown" );
#endif
#elif defined __sgi__
#if defined __mips__
Cvar_Set( "arch", "sgi mips" );
#else
Cvar_Set( "arch", "sgi unknown" );
#endif
#else
Cvar_Set( "arch", "unknown" );
#endif
Cvar_Set( "username", Sys_GetCurrentUser() );
//IN_Init(); // rcg08312005 moved into glimp.
}
void Sys_Error( const char *error, ...)
{
va_list argptr;
char string[1024];
// change stdin to non blocking
// NOTE TTimo not sure how well that goes with tty console mode
fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
// don't bother do a show on this one heh
if (ttycon_on)
{
tty_Hide();
}
CL_Shutdown ();
va_start (argptr,error);
vsprintf (string,error,argptr);
va_end (argptr);
fprintf(stderr, "Sys_Error: %s\n", string);
Sys_Exit( 1 ); // bk010104 - use single exit point.
}
void Sys_Warn (char *warning, ...)
{
va_list argptr;
char string[1024];
va_start (argptr,warning);
vsprintf (string,warning,argptr);
va_end (argptr);
if (ttycon_on)
{
tty_Hide();
}
fprintf(stderr, "Warning: %s", string);
if (ttycon_on)
{
tty_Show();
}
}
/*
============
Sys_FileTime
returns -1 if not present
============
*/
int Sys_FileTime (char *path)
{
struct stat buf;
if (stat (path,&buf) == -1)
return -1;
return buf.st_mtime;
}
void floating_point_exception_handler(int whatever)
{
signal(SIGFPE, floating_point_exception_handler);
}
// initialize the console input (tty mode if wanted and possible)
void Sys_ConsoleInputInit( void )
{
struct termios tc;
// TTimo
// https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=390
// ttycon 0 or 1, if the process is backgrounded (running non interactively)
// then SIGTTIN or SIGTOU is emitted, if not catched, turns into a SIGSTP
signal(SIGTTIN, SIG_IGN);
signal(SIGTTOU, SIG_IGN);
// FIXME TTimo initialize this in Sys_Init or something?
ttycon = Cvar_Get("ttycon", "1", 0);
if (ttycon && ttycon->value)
{
if (isatty(STDIN_FILENO)!=1)
{
Com_Printf("stdin is not a tty, tty console mode failed\n");
Cvar_Set("ttycon", "0");
ttycon_on = qfalse;
return;
}
Com_Printf("Started tty console (use +set ttycon 0 to disable)\n");
Field_Clear(&tty_con);
tcgetattr (0, &tty_tc);
tty_erase = tty_tc.c_cc[VERASE];
tty_eof = tty_tc.c_cc[VEOF];
tc = tty_tc;
/*
ECHO: don't echo input characters
ICANON: enable canonical mode. This enables the special
characters EOF, EOL, EOL2, ERASE, KILL, REPRINT,
STATUS, and WERASE, and buffers by lines.
ISIG: when any of the characters INTR, QUIT, SUSP, or
DSUSP are received, generate the corresponding sig<69>
nal
*/
tc.c_lflag &= ~(ECHO | ICANON);
/*
ISTRIP strip off bit 8
INPCK enable input parity checking
*/
tc.c_iflag &= ~(ISTRIP | INPCK);
tc.c_cc[VMIN] = 1;
tc.c_cc[VTIME] = 0;
tcsetattr (0, TCSADRAIN, &tc);
ttycon_on = qtrue;
ttycon_ansicolor = Cvar_Get( "ttycon_ansicolor", "0", CVAR_ARCHIVE );
if( ttycon_ansicolor && ttycon_ansicolor->value )
{
ttycon_color_on = qtrue;
}
} else
ttycon_on = qfalse;
}
char *Sys_ConsoleInput(void)
{
// we use this when sending back commands
static char text[256];
int i;
int avail;
char key;
field_t *history;
if (ttycon && ttycon->value)
{
avail = read(0, &key, 1);
if (avail != -1)
{
// we have something
// backspace?
// NOTE TTimo testing a lot of values .. seems it's the only way to get it to work everywhere
if ((key == tty_erase) || (key == 127) || (key == 8))
{
if (tty_con.cursor > 0)
{
tty_con.cursor--;
tty_con.buffer[tty_con.cursor] = '\0';
tty_Back();
}
return NULL;
}
// check if this is a control char
if ((key) && (key) < ' ')
{
if (key == '\n')
{
// push it in history
Hist_Add(&tty_con);
strcpy(text, tty_con.buffer);
Field_Clear(&tty_con);
key = '\n';
write(1, &key, 1);
return text;
}
if (key == '\t')
{
tty_Hide();
Field_CompleteCommand( &tty_con );
// Field_CompleteCommand does weird things to the string, do a cleanup
// it adds a '\' at the beginning of the string
// cursor doesn't reflect actual length of the string that's sent back
tty_con.cursor = strlen(tty_con.buffer);
if (tty_con.cursor>0)
{
if (tty_con.buffer[0] == '\\')
{
for (i=0; i<=tty_con.cursor; i++)
{
tty_con.buffer[i] = tty_con.buffer[i+1];
}
tty_con.cursor--;
}
}
tty_Show();
return NULL;
}
avail = read(0, &key, 1);
if (avail != -1)
{
// VT 100 keys
if (key == '[' || key == 'O')
{
avail = read(0, &key, 1);
if (avail != -1)
{
switch (key)
{
case 'A':
history = Hist_Prev();
if (history)
{
tty_Hide();
tty_con = *history;
tty_Show();
}
tty_FlushIn();
return NULL;
break;
case 'B':
history = Hist_Next();
tty_Hide();
if (history)
{
tty_con = *history;
} else
{
Field_Clear(&tty_con);
}
tty_Show();
tty_FlushIn();
return NULL;
break;
case 'C':
return NULL;
case 'D':
return NULL;
}
}
}
}
Com_DPrintf("droping ISCTL sequence: %d, tty_erase: %d\n", key, tty_erase);
tty_FlushIn();
return NULL;
}
// push regular character
tty_con.buffer[tty_con.cursor] = key;
tty_con.cursor++;
// print the current line (this is differential)
write(1, &key, 1);
}
return NULL;
} else
{
int len;
fd_set fdset;
struct timeval timeout;
if (!com_dedicated || !com_dedicated->value)
return NULL;
if (!stdin_active)
return NULL;
FD_ZERO(&fdset);
FD_SET(0, &fdset); // stdin
timeout.tv_sec = 0;
timeout.tv_usec = 0;
if (select (1, &fdset, NULL, NULL, &timeout) == -1 || !FD_ISSET(0, &fdset))
{
return NULL;
}
len = read (0, text, sizeof(text));
if (len == 0)
{ // eof!
stdin_active = qfalse;
return NULL;
}
if (len < 1)
return NULL;
text[len-1] = 0; // rip off the /n and terminate
return text;
}
}
/*****************************************************************************/
/*
=================
Sys_UnloadDll
=================
*/
void Sys_UnloadDll( void *dllHandle ) {
// bk001206 - verbose error reporting
const char* err; // rb010123 - now const
if ( !dllHandle )
{
Com_Printf("Sys_UnloadDll(NULL)\n");
return;
}
dlclose( dllHandle );
err = dlerror();
if ( err != NULL )
Com_Printf ( "Sys_UnloadGame failed on dlclose: \"%s\"!\n", err );
}
/*
=================
Sys_LoadDll
Used to load a development dll instead of a virtual machine
TTimo:
changed the load procedure to match VFS logic, and allow developer use
#1 look down current path
#2 look in fs_homepath
#3 look in fs_basepath
=================
*/
extern char *FS_BuildOSPath( const char *base, const char *game, const char *qpath );
static void* try_dlopen(const char* base, const char* gamedir, const char* fname, char* fqpath )
{
void* libHandle;
char* fn;
*fqpath = 0;
// bk001129 - was RTLD_LAZY
#define Q_RTLD RTLD_NOW
fn = FS_BuildOSPath( base, gamedir, fname );
Com_Printf( "Sys_LoadDll(%s)... \n", fn );
libHandle = dlopen( fn, Q_RTLD );
if(!libHandle) {
Com_Printf( "Sys_LoadDll(%s) failed:\n\"%s\"\n", fn, dlerror() );
return NULL;
}
Com_Printf ( "Sys_LoadDll(%s): succeeded ...\n", fn );
Q_strncpyz ( fqpath , fn , MAX_QPATH ) ; // added 7/20/02 by T.Ray
return libHandle;
}
void *Sys_LoadDll( const char *name, char *fqpath ,
long (**entryPoint)(long, ...),
long (*systemcalls)(long, ...) )
{
void *libHandle;
void (*dllEntry)( long (*syscallptr)(long, ...) );
char curpath[MAX_OSPATH];
char fname[MAX_OSPATH];
char *basepath;
char *homepath;
char *pwdpath;
char *cdpath;
char *gamedir;
const char* err = NULL;
// bk001206 - let's have some paranoia
assert( name );
getcwd(curpath, sizeof(curpath));
#if defined __i386__
snprintf (fname, sizeof(fname), "%si386.so", name);
#elif defined __x86_64__
snprintf (fname, sizeof(fname), "%sx86_64.so", name);
#elif defined __powerpc64__
snprintf (fname, sizeof(fname), "%sppc64.so", name);
#elif defined __powerpc__ //rcg010207 - PPC support.
snprintf (fname, sizeof(fname), "%sppc.so", name);
#elif defined __s390__
snprintf (fname, sizeof(fname), "%ss390.so", name);
#elif defined __s390x__
snprintf (fname, sizeof(fname), "%ss390x.so", name);
#elif defined __ia64__
snprintf (fname, sizeof(fname), "%sia64.so", name);
#elif defined __axp__
snprintf (fname, sizeof(fname), "%saxp.so", name);
#elif defined __mips__
snprintf (fname, sizeof(fname), "%smips.so", name);
#else
#error Unknown arch
#endif
// TODO: use fs_searchpaths from files.c
pwdpath = Sys_Cwd();
basepath = Cvar_VariableString( "fs_basepath" );
homepath = Cvar_VariableString( "fs_homepath" );
cdpath = Cvar_VariableString( "fs_cdpath" );
gamedir = Cvar_VariableString( "fs_game" );
libHandle = try_dlopen(pwdpath, gamedir, fname, fqpath);
if(!libHandle && homepath)
libHandle = try_dlopen(homepath, gamedir, fname, fqpath);
if(!libHandle && basepath)
libHandle = try_dlopen(basepath, gamedir, fname, fqpath);
if(!libHandle && cdpath)
libHandle = try_dlopen(cdpath, gamedir, fname, fqpath);
if(!libHandle) {
#if 0 // don't abort -- ln
//#ifndef NDEBUG // bk001206 - in debug abort on failure
Com_Error ( ERR_FATAL, "Sys_LoadDll(%s) failed dlopen() completely!\n", name );
#else
Com_Printf ( "Sys_LoadDll(%s) failed dlopen() completely!\n", name );
#endif
return NULL;
}
dllEntry = dlsym( libHandle, "dllEntry" );
*entryPoint = dlsym( libHandle, "vmMain" );
if ( !*entryPoint || !dllEntry )
{
err = dlerror();
#ifndef NDEBUG // bk001206 - in debug abort on failure
Com_Error ( ERR_FATAL, "Sys_LoadDll(%s) failed dlsym(vmMain):\n\"%s\" !\n", name, err );
#else
Com_Printf ( "Sys_LoadDll(%s) failed dlsym(vmMain):\n\"%s\" !\n", name, err );
#endif
dlclose( libHandle );
err = dlerror();
if ( err != NULL )
Com_Printf ( "Sys_LoadDll(%s) failed dlcose:\n\"%s\"\n", name, err );
return NULL;
}
Com_Printf ( "Sys_LoadDll(%s) found **vmMain** at %p \n", name, *entryPoint ); // bk001212
dllEntry( systemcalls );
Com_Printf ( "Sys_LoadDll(%s) succeeded!\n", name );
return libHandle;
}
/*
========================================================================
BACKGROUND FILE STREAMING
========================================================================
*/
#if 1
void Sys_InitStreamThread( void ) {
}
void Sys_ShutdownStreamThread( void ) {
}
void Sys_BeginStreamedFile( fileHandle_t f, int readAhead ) {
}
void Sys_EndStreamedFile( fileHandle_t f ) {
}
int Sys_StreamedRead( void *buffer, int size, int count, fileHandle_t f ) {
return FS_Read( buffer, size * count, f );
}
void Sys_StreamSeek( fileHandle_t f, int offset, int origin ) {
FS_Seek( f, offset, origin );
}
#else
typedef struct
{
fileHandle_t file;
byte *buffer;
qboolean eof;
int bufferSize;
int streamPosition; // next byte to be returned by Sys_StreamRead
int threadPosition; // next byte to be read from file
} streamState_t;
streamState_t stream;
/*
===============
Sys_StreamThread
A thread will be sitting in this loop forever
================
*/
void Sys_StreamThread( void )
{
int buffer;
int count;
int readCount;
int bufferPoint;
int r;
// if there is any space left in the buffer, fill it up
if ( !stream.eof )
{
count = stream.bufferSize - (stream.threadPosition - stream.streamPosition);
if ( count )
{
bufferPoint = stream.threadPosition % stream.bufferSize;
buffer = stream.bufferSize - bufferPoint;
readCount = buffer < count ? buffer : count;
r = FS_Read ( stream.buffer + bufferPoint, readCount, stream.file );
stream.threadPosition += r;
if ( r != readCount )
stream.eof = qtrue;
}
}
}
/*
===============
Sys_InitStreamThread
================
*/
void Sys_InitStreamThread( void )
{
}
/*
===============
Sys_ShutdownStreamThread
================
*/
void Sys_ShutdownStreamThread( void )
{
}
/*
===============
Sys_BeginStreamedFile
================
*/
void Sys_BeginStreamedFile( fileHandle_t f, int readAhead )
{
if ( stream.file )
{
Com_Error( ERR_FATAL, "Sys_BeginStreamedFile: unclosed stream");
}
stream.file = f;
stream.buffer = Z_Malloc( readAhead );
stream.bufferSize = readAhead;
stream.streamPosition = 0;
stream.threadPosition = 0;
stream.eof = qfalse;
}
/*
===============
Sys_EndStreamedFile
================
*/
void Sys_EndStreamedFile( fileHandle_t f )
{
if ( f != stream.file )
{
Com_Error( ERR_FATAL, "Sys_EndStreamedFile: wrong file");
}
stream.file = 0;
Z_Free( stream.buffer );
}
/*
===============
Sys_StreamedRead
================
*/
int Sys_StreamedRead( void *buffer, int size, int count, fileHandle_t f )
{
int available;
int remaining;
int sleepCount;
int copy;
int bufferCount;
int bufferPoint;
byte *dest;
dest = (byte *)buffer;
remaining = size * count;
if ( remaining <= 0 )
{
Com_Error( ERR_FATAL, "Streamed read with non-positive size" );
}
sleepCount = 0;
while ( remaining > 0 )
{
available = stream.threadPosition - stream.streamPosition;
if ( !available )
{
if (stream.eof)
break;
Sys_StreamThread();
continue;
}
bufferPoint = stream.streamPosition % stream.bufferSize;
bufferCount = stream.bufferSize - bufferPoint;
copy = available < bufferCount ? available : bufferCount;
if ( copy > remaining )
{
copy = remaining;
}
memcpy( dest, stream.buffer + bufferPoint, copy );
stream.streamPosition += copy;
dest += copy;
remaining -= copy;
}
return(count * size - remaining) / size;
}
/*
===============
Sys_StreamSeek
================
*/
void Sys_StreamSeek( fileHandle_t f, int offset, int origin ) {
// clear to that point
FS_Seek( f, offset, origin );
stream.streamPosition = 0;
stream.threadPosition = 0;
stream.eof = qfalse;
}
#endif
/*
========================================================================
EVENT LOOP
========================================================================
*/
// bk000306: upped this from 64
#define MAX_QUED_EVENTS 256
#define MASK_QUED_EVENTS ( MAX_QUED_EVENTS - 1 )
sysEvent_t eventQue[MAX_QUED_EVENTS];
// bk000306: initialize
int eventHead = 0;
int eventTail = 0;
byte sys_packetReceived[MAX_MSGLEN];
/*
================
Sys_QueEvent
A time of 0 will get the current time
Ptr should either be null, or point to a block of data that can
be freed by the game later.
================
*/
void Sys_QueEvent( int time, sysEventType_t type, int value, int value2, int ptrLength, void *ptr ) {
sysEvent_t *ev;
ev = &eventQue[ eventHead & MASK_QUED_EVENTS ];
// bk000305 - was missing
if ( eventHead - eventTail >= MAX_QUED_EVENTS )
{
Com_Printf("Sys_QueEvent: overflow\n");
// we are discarding an event, but don't leak memory
if ( ev->evPtr )
{
Z_Free( ev->evPtr );
}
eventTail++;
}
eventHead++;
if ( time == 0 )
{
time = Sys_Milliseconds();
}
ev->evTime = time;
ev->evType = type;
ev->evValue = value;
ev->evValue2 = value2;
ev->evPtrLength = ptrLength;
ev->evPtr = ptr;
}
/*
================
Sys_GetEvent
================
*/
sysEvent_t Sys_GetEvent( void ) {
sysEvent_t ev;
char *s;
msg_t netmsg;
netadr_t adr;
// return if we have data
if ( eventHead > eventTail )
{
eventTail++;
return eventQue[ ( eventTail - 1 ) & MASK_QUED_EVENTS ];
}
// pump the message loop
// in vga this calls KBD_Update, under X, it calls GetEvent
Sys_SendKeyEvents ();
// check for console commands
s = Sys_ConsoleInput();
if ( s )
{
char *b;
int len;
len = strlen( s ) + 1;
b = Z_Malloc( len );
strcpy( b, s );
Sys_QueEvent( 0, SE_CONSOLE, 0, 0, len, b );
}
// check for other input devices
IN_Frame();
// check for network packets
MSG_Init( &netmsg, sys_packetReceived, sizeof( sys_packetReceived ) );
if ( Sys_GetPacket ( &adr, &netmsg ) )
{
netadr_t *buf;
int len;
// copy out to a seperate buffer for qeueing
len = sizeof( netadr_t ) + netmsg.cursize;
buf = Z_Malloc( len );
*buf = adr;
memcpy( buf+1, netmsg.data, netmsg.cursize );
Sys_QueEvent( 0, SE_PACKET, 0, 0, len, buf );
}
// return if we have data
if ( eventHead > eventTail )
{
eventTail++;
return eventQue[ ( eventTail - 1 ) & MASK_QUED_EVENTS ];
}
// create an empty event to return
memset( &ev, 0, sizeof( ev ) );
ev.evTime = Sys_Milliseconds();
return ev;
}
/*****************************************************************************/
qboolean Sys_CheckCD( void ) {
return qtrue;
}
void Sys_AppActivate (void)
{
}
char *Sys_GetClipboardData(void)
{
return NULL;
}
static struct Q3ToAnsiColorTable_s
{
char Q3color;
char *ANSIcolor;
} tty_colorTable[ ] =
{
{ COLOR_BLACK, "30" },
{ COLOR_RED, "31" },
{ COLOR_GREEN, "32" },
{ COLOR_YELLOW, "33" },
{ COLOR_BLUE, "34" },
{ COLOR_CYAN, "36" },
{ COLOR_MAGENTA, "35" },
{ COLOR_WHITE, "0" }
};
static int tty_colorTableSize =
sizeof( tty_colorTable ) / sizeof( tty_colorTable[ 0 ] );
void Sys_ANSIColorify( const char *msg, char *buffer, int bufferSize )
{
int msgLength, pos;
int i, j;
char *escapeCode;
if( !msg || !buffer )
return;
msgLength = strlen( msg );
pos = 0;
i = 0;
buffer[ 0 ] = '\0';
while( i < msgLength )
{
if( msg[ i ] == '\n' )
{
strncat( buffer, va( "%c[0m\n", 0x1B ), bufferSize );
i++;
}
else if( msg[ i ] == Q_COLOR_ESCAPE )
{
i++;
if( i < msgLength )
{
escapeCode = NULL;
for( j = 0; j < tty_colorTableSize; j++ )
{
if( msg[ i ] == tty_colorTable[ j ].Q3color )
{
escapeCode = tty_colorTable[ j ].ANSIcolor;
break;
}
}
if( escapeCode )
strncat( buffer, va( "%c[%sm", 0x1B, escapeCode ), bufferSize );
i++;
}
}
else
strncat( buffer, va( "%c", msg[ i++ ] ), bufferSize );
}
}
void Sys_Print( const char *msg )
{
if (ttycon_on)
{
tty_Hide();
}
if( ttycon_on && ttycon_color_on )
{
char ansiColorString[ MAXPRINTMSG ];
Sys_ANSIColorify( msg, ansiColorString, MAXPRINTMSG );
fputs( ansiColorString, stderr );
}
else
fputs(msg, stderr);
if (ttycon_on)
{
tty_Show();
}
}
void Sys_ConfigureFPU( void ) { // bk001213 - divide by zero
#ifdef __linux__
#ifdef __i386
#ifndef NDEBUG
// bk0101022 - enable FPE's in debug mode
static int fpu_word = _FPU_DEFAULT & ~(_FPU_MASK_ZM | _FPU_MASK_IM);
int current = 0;
_FPU_GETCW(current);
if ( current!=fpu_word)
{
#if 0
Com_Printf("FPU Control 0x%x (was 0x%x)\n", fpu_word, current );
_FPU_SETCW( fpu_word );
_FPU_GETCW( current );
assert(fpu_word==current);
#endif
}
#else // NDEBUG
static int fpu_word = _FPU_DEFAULT;
_FPU_SETCW( fpu_word );
#endif // NDEBUG
#endif // __i386
#endif // __linux
}
void Sys_PrintBinVersion( const char* name ) {
char* date = __DATE__;
char* time = __TIME__;
char* sep = "==============================================================";
fprintf( stdout, "\n\n%s\n", sep );
#ifdef DEDICATED
fprintf( stdout, "Linux Quake3 Dedicated Server [%s %s]\n", date, time );
#else
fprintf( stdout, "Linux Quake3 Full Executable [%s %s]\n", date, time );
#endif
fprintf( stdout, " local install: %s\n", name );
fprintf( stdout, "%s\n\n", sep );
}
void Sys_ParseArgs( int argc, char* argv[] ) {
if ( argc==2 )
{
if ( (!strcmp( argv[1], "--version" ))
|| ( !strcmp( argv[1], "-v" )) )
{
Sys_PrintBinVersion( argv[0] );
Sys_Exit(0);
}
}
}
#ifndef DEFAULT_BASEDIR
# define DEFAULT_BASEDIR Sys_Cwd()
#endif
#include "../client/client.h"
extern clientStatic_t cls;
int main ( int argc, char* argv[] )
{
// int oldtime, newtime; // bk001204 - unused
int len, i;
char *cmdline;
char cdpath[PATH_MAX] = {0};
void Sys_SetDefaultCDPath(const char *path);
Sys_ParseArgs( argc, argv ); // bk010104 - added this for support
strncat(cdpath, argv[0], sizeof(cdpath)-1);
Sys_SetDefaultCDPath(dirname(cdpath));
Sys_SetDefaultInstallPath(DEFAULT_BASEDIR);
// merge the command line, this is kinda silly
for (len = 1, i = 1; i < argc; i++)
len += strlen(argv[i]) + 1;
cmdline = malloc(len);
*cmdline = 0;
for (i = 1; i < argc; i++)
{
if (i > 1)
strcat(cmdline, " ");
strcat(cmdline, argv[i]);
}
// bk000306 - clear queues
memset( &eventQue[0], 0, MAX_QUED_EVENTS*sizeof(sysEvent_t) );
memset( &sys_packetReceived[0], 0, MAX_MSGLEN*sizeof(byte) );
Com_Init(cmdline);
NET_Init();
Sys_ConsoleInputInit();
fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
#ifdef DEDICATED
// init here for dedicated, as we don't have GLimp_Init
InitSig();
#endif
while (1)
{
#ifdef __linux__
Sys_ConfigureFPU();
#endif
Com_Frame ();
}
}
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