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lilium-voyager/code/sys/sys_main.c
Zack Middleton ead54782d0 Improve client input responsiveness 
Move sampling input to the other side of framerate limiter.

Thanks to Alexander "wareya" Nadeau and Juraj "youurayy" Vitko for
pointing this out.
2017-08-21 21:40:54 -05:00

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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 Quake III Arena source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include <signal.h>
#include <stdlib.h>
#include <limits.h>
#include <sys/types.h>
#include <stdarg.h>
#include <stdio.h>
#include <sys/stat.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#ifndef DEDICATED
#ifdef USE_LOCAL_HEADERS
# include "SDL.h"
# include "SDL_cpuinfo.h"
#else
# include <SDL.h>
# include <SDL_cpuinfo.h>
#endif
#endif
#include "sys_local.h"
#include "sys_loadlib.h"
#include "../qcommon/q_shared.h"
#include "../qcommon/qcommon.h"
static char binaryPath[ MAX_OSPATH ] = { 0 };
static char installPath[ MAX_OSPATH ] = { 0 };
/*
=================
Sys_SetBinaryPath
=================
*/
void Sys_SetBinaryPath(const char *path)
{
Q_strncpyz(binaryPath, path, sizeof(binaryPath));
}
/*
=================
Sys_BinaryPath
=================
*/
char *Sys_BinaryPath(void)
{
return binaryPath;
}
/*
=================
Sys_SetDefaultInstallPath
=================
*/
void Sys_SetDefaultInstallPath(const char *path)
{
Q_strncpyz(installPath, path, sizeof(installPath));
}
/*
=================
Sys_DefaultInstallPath
=================
*/
char *Sys_DefaultInstallPath(void)
{
if (*installPath)
return installPath;
else
return Sys_Cwd();
}
/*
=================
Sys_DefaultAppPath
=================
*/
char *Sys_DefaultAppPath(void)
{
return Sys_BinaryPath();
}
/*
=================
Sys_In_Restart_f
Restart the input subsystem
=================
*/
void Sys_In_Restart_f( void )
{
IN_Restart( );
}
/*
=================
Sys_ConsoleInput
Handle new console input
=================
*/
char *Sys_ConsoleInput(void)
{
return CON_Input( );
}
/*
==================
Sys_GetClipboardData
==================
*/
char *Sys_GetClipboardData(void)
{
#ifdef DEDICATED
return NULL;
#else
char *data = NULL;
char *cliptext;
if ( ( cliptext = SDL_GetClipboardText() ) != NULL ) {
if ( cliptext[0] != '\0' ) {
size_t bufsize = strlen( cliptext ) + 1;
data = Z_Malloc( bufsize );
Q_strncpyz( data, cliptext, bufsize );
// find first listed char and set to '\0'
strtok( data, "\n\r\b" );
}
SDL_free( cliptext );
}
return data;
#endif
}
#ifdef DEDICATED
# define PID_FILENAME PRODUCT_NAME "_server.pid"
#else
# define PID_FILENAME PRODUCT_NAME ".pid"
#endif
/*
=================
Sys_PIDFileName
=================
*/
static char *Sys_PIDFileName( const char *gamedir )
{
const char *homePath = Cvar_VariableString( "fs_homepath" );
if( *homePath != '\0' )
return va( "%s/%s/%s", homePath, gamedir, PID_FILENAME );
return NULL;
}
/*
=================
Sys_RemovePIDFile
=================
*/
void Sys_RemovePIDFile( const char *gamedir )
{
char *pidFile = Sys_PIDFileName( gamedir );
if( pidFile != NULL )
remove( pidFile );
}
/*
=================
Sys_WritePIDFile
Return qtrue if there is an existing stale PID file
=================
*/
static qboolean Sys_WritePIDFile( const char *gamedir )
{
char *pidFile = Sys_PIDFileName( gamedir );
FILE *f;
qboolean stale = qfalse;
if( pidFile == NULL )
return qfalse;
// First, check if the pid file is already there
if( ( f = fopen( pidFile, "r" ) ) != NULL )
{
char pidBuffer[ 64 ] = { 0 };
int pid;
pid = fread( pidBuffer, sizeof( char ), sizeof( pidBuffer ) - 1, f );
fclose( f );
if(pid > 0)
{
pid = atoi( pidBuffer );
if( !Sys_PIDIsRunning( pid ) )
stale = qtrue;
}
else
stale = qtrue;
}
if( FS_CreatePath( pidFile ) ) {
return 0;
}
if( ( f = fopen( pidFile, "w" ) ) != NULL )
{
fprintf( f, "%d", Sys_PID( ) );
fclose( f );
}
else
Com_Printf( S_COLOR_YELLOW "Couldn't write %s.\n", pidFile );
return stale;
}
/*
=================
Sys_InitPIDFile
=================
*/
void Sys_InitPIDFile( const char *gamedir ) {
if( Sys_WritePIDFile( gamedir ) ) {
#ifndef DEDICATED
char message[1024];
char modName[MAX_OSPATH];
FS_GetModDescription( gamedir, modName, sizeof ( modName ) );
Q_CleanStr( modName );
Com_sprintf( message, sizeof (message), "The last time %s ran, "
"it didn't exit properly. This may be due to inappropriate video "
"settings. Would you like to start with \"safe\" video settings?", modName );
if( Sys_Dialog( DT_YES_NO, message, "Abnormal Exit" ) == DR_YES ) {
Cvar_Set( "com_abnormalExit", "1" );
}
#endif
}
}
/*
=================
Sys_Exit
Single exit point (regular exit or in case of error)
=================
*/
static __attribute__ ((noreturn)) void Sys_Exit( int exitCode )
{
CON_Shutdown( );
#ifndef DEDICATED
SDL_Quit( );
#endif
if( exitCode < 2 && com_fullyInitialized )
{
// Normal exit
Sys_RemovePIDFile( FS_GetCurrentGameDir() );
}
NET_Shutdown( );
Sys_PlatformExit( );
exit( exitCode );
}
/*
=================
Sys_Quit
=================
*/
void Sys_Quit( void )
{
Sys_Exit( 0 );
}
/*
=================
Sys_GetProcessorFeatures
=================
*/
cpuFeatures_t Sys_GetProcessorFeatures( void )
{
cpuFeatures_t features = 0;
#ifndef DEDICATED
if( SDL_HasRDTSC( ) ) features |= CF_RDTSC;
if( SDL_Has3DNow( ) ) features |= CF_3DNOW;
if( SDL_HasMMX( ) ) features |= CF_MMX;
if( SDL_HasSSE( ) ) features |= CF_SSE;
if( SDL_HasSSE2( ) ) features |= CF_SSE2;
if( SDL_HasAltiVec( ) ) features |= CF_ALTIVEC;
#endif
return features;
}
/*
=================
Sys_Init
=================
*/
void Sys_Init(void)
{
Cmd_AddCommand( "in_restart", Sys_In_Restart_f );
Cvar_Set( "arch", OS_STRING " " ARCH_STRING );
Cvar_Set( "username", Sys_GetCurrentUser( ) );
}
/*
=================
Sys_AnsiColorPrint
Transform Q3 colour codes to ANSI escape sequences
=================
*/
void Sys_AnsiColorPrint( const char *msg )
{
static char buffer[ MAXPRINTMSG ];
int length = 0;
static int q3ToAnsi[ 8 ] =
{
30, // COLOR_BLACK
31, // COLOR_RED
32, // COLOR_GREEN
33, // COLOR_YELLOW
34, // COLOR_BLUE
36, // COLOR_CYAN
35, // COLOR_MAGENTA
0 // COLOR_WHITE
};
while( *msg )
{
if( Q_IsColorString( msg ) || *msg == '\n' )
{
// First empty the buffer
if( length > 0 )
{
buffer[ length ] = '\0';
fputs( buffer, stderr );
length = 0;
}
if( *msg == '\n' )
{
// Issue a reset and then the newline
fputs( "\033[0m\n", stderr );
msg++;
}
else
{
// Print the color code
Com_sprintf( buffer, sizeof( buffer ), "\033[%dm",
q3ToAnsi[ ColorIndex( *( msg + 1 ) ) ] );
fputs( buffer, stderr );
msg += 2;
}
}
else
{
if( length >= MAXPRINTMSG - 1 )
break;
buffer[ length ] = *msg;
length++;
msg++;
}
}
// Empty anything still left in the buffer
if( length > 0 )
{
buffer[ length ] = '\0';
fputs( buffer, stderr );
}
}
/*
=================
Sys_Print
=================
*/
void Sys_Print( const char *msg )
{
CON_LogWrite( msg );
CON_Print( msg );
}
/*
=================
Sys_Error
=================
*/
void Sys_Error( const char *error, ... )
{
va_list argptr;
char string[1024];
va_start (argptr,error);
Q_vsnprintf (string, sizeof(string), error, argptr);
va_end (argptr);
Sys_ErrorDialog( string );
Sys_Exit( 3 );
}
#if 0
/*
=================
Sys_Warn
=================
*/
static __attribute__ ((format (printf, 1, 2))) void Sys_Warn( char *warning, ... )
{
va_list argptr;
char string[1024];
va_start (argptr,warning);
Q_vsnprintf (string, sizeof(string), warning, argptr);
va_end (argptr);
CON_Print( va( "Warning: %s", string ) );
}
#endif
/*
============
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;
}
/*
=================
Sys_UnloadDll
=================
*/
void Sys_UnloadDll( void *dllHandle )
{
if( !dllHandle )
{
Com_Printf("Sys_UnloadDll(NULL)\n");
return;
}
Sys_UnloadLibrary(dllHandle);
}
/*
=================
Sys_LoadDll
First try to load library name from system library path,
from executable path, then fs_basepath.
=================
*/
void *Sys_LoadDll(const char *name, qboolean useSystemLib)
{
void *dllhandle = NULL;
if(!Sys_DllExtension(name))
{
Com_Printf("Refusing to attempt to load library \"%s\": Extension not allowed.\n", name);
return NULL;
}
if(useSystemLib)
{
Com_Printf("Trying to load \"%s\"...\n", name);
dllhandle = Sys_LoadLibrary(name);
}
if(!dllhandle)
{
const char *topDir;
char libPath[MAX_OSPATH];
int len;
topDir = Sys_BinaryPath();
if(!*topDir)
topDir = ".";
len = Com_sprintf(libPath, sizeof(libPath), "%s%c%s", topDir, PATH_SEP, name);
if(len < sizeof(libPath))
{
Com_Printf("Trying to load \"%s\" from \"%s\"...\n", name, topDir);
dllhandle = Sys_LoadLibrary(libPath);
}
else
{
Com_Printf("Skipping trying to load \"%s\" from \"%s\", file name is too long.\n", name, topDir);
}
if(!dllhandle)
{
const char *basePath = Cvar_VariableString("fs_basepath");
if(!basePath || !*basePath)
basePath = ".";
if(FS_FilenameCompare(topDir, basePath))
{
len = Com_sprintf(libPath, sizeof(libPath), "%s%c%s", basePath, PATH_SEP, name);
if(len < sizeof(libPath))
{
Com_Printf("Trying to load \"%s\" from \"%s\"...\n", name, basePath);
dllhandle = Sys_LoadLibrary(libPath);
}
else
{
Com_Printf("Skipping trying to load \"%s\" from \"%s\", file name is too long.\n", name, basePath);
}
}
if(!dllhandle)
Com_Printf("Loading \"%s\" failed\n", name);
}
}
return dllhandle;
}
/*
=================
Sys_LoadGameDll
Used to load a development dll instead of a virtual machine
=================
*/
void *Sys_LoadGameDll(const char *name,
intptr_t (QDECL **entryPoint)(int, ...),
intptr_t (*systemcalls)(intptr_t, ...))
{
void *libHandle;
void (*dllEntry)(intptr_t (*syscallptr)(intptr_t, ...));
assert(name);
if(!Sys_DllExtension(name))
{
Com_Printf("Refusing to attempt to load library \"%s\": Extension not allowed.\n", name);
return NULL;
}
Com_Printf( "Loading DLL file: %s\n", name);
libHandle = Sys_LoadLibrary(name);
if(!libHandle)
{
Com_Printf("Sys_LoadGameDll(%s) failed:\n\"%s\"\n", name, Sys_LibraryError());
return NULL;
}
dllEntry = Sys_LoadFunction( libHandle, "dllEntry" );
*entryPoint = Sys_LoadFunction( libHandle, "vmMain" );
if ( !*entryPoint || !dllEntry )
{
Com_Printf ( "Sys_LoadGameDll(%s) failed to find vmMain function:\n\"%s\" !\n", name, Sys_LibraryError( ) );
Sys_UnloadLibrary(libHandle);
return NULL;
}
Com_Printf ( "Sys_LoadGameDll(%s) found vmMain function at %p\n", name, *entryPoint );
dllEntry( systemcalls );
return libHandle;
}
/*
=================
Sys_ParseArgs
=================
*/
void Sys_ParseArgs( int argc, char **argv )
{
if( argc == 2 )
{
if( !strcmp( argv[1], "--version" ) ||
!strcmp( argv[1], "-v" ) )
{
const char* date = PRODUCT_DATE;
#ifdef DEDICATED
fprintf( stdout, Q3_VERSION " dedicated server (%s)\n", date );
#else
fprintf( stdout, Q3_VERSION " client (%s)\n", date );
#endif
Sys_Exit( 0 );
}
}
}
#ifndef DEFAULT_BASEDIR
# ifdef __APPLE__
# define DEFAULT_BASEDIR Sys_StripAppBundle(Sys_BinaryPath())
# else
# define DEFAULT_BASEDIR Sys_BinaryPath()
# endif
#endif
/*
=================
Sys_SigHandler
=================
*/
void Sys_SigHandler( int signal )
{
static qboolean signalcaught = qfalse;
if( signalcaught )
{
fprintf( stderr, "DOUBLE SIGNAL FAULT: Received signal %d, exiting...\n",
signal );
}
else
{
signalcaught = qtrue;
VM_Forced_Unload_Start();
#ifndef DEDICATED
CL_Shutdown(va("Received signal %d", signal), qtrue, qtrue);
#endif
SV_Shutdown(va("Received signal %d", signal) );
VM_Forced_Unload_Done();
}
if( signal == SIGTERM || signal == SIGINT )
Sys_Exit( 1 );
else
Sys_Exit( 2 );
}
/*
=================
main
=================
*/
int main( int argc, char **argv )
{
int i;
char commandLine[ MAX_STRING_CHARS ] = { 0 };
extern void Sys_LaunchAutoupdater(int argc, char **argv);
Sys_LaunchAutoupdater(argc, argv);
#ifndef DEDICATED
// SDL version check
// Compile time
# if !SDL_VERSION_ATLEAST(MINSDL_MAJOR,MINSDL_MINOR,MINSDL_PATCH)
# error A more recent version of SDL is required
# endif
// Run time
SDL_version ver;
SDL_GetVersion( &ver );
#define MINSDL_VERSION \
XSTRING(MINSDL_MAJOR) "." \
XSTRING(MINSDL_MINOR) "." \
XSTRING(MINSDL_PATCH)
if( SDL_VERSIONNUM( ver.major, ver.minor, ver.patch ) <
SDL_VERSIONNUM( MINSDL_MAJOR, MINSDL_MINOR, MINSDL_PATCH ) )
{
Sys_Dialog( DT_ERROR, va( "SDL version " MINSDL_VERSION " or greater is required, "
"but only version %d.%d.%d was found. You may be able to obtain a more recent copy "
"from http://www.libsdl.org/.", ver.major, ver.minor, ver.patch ), "SDL Library Too Old" );
Sys_Exit( 1 );
}
#endif
Sys_PlatformInit( );
// Set the initial time base
Sys_Milliseconds( );
#ifdef __APPLE__
// This is passed if we are launched by double-clicking
if ( argc >= 2 && Q_strncmp ( argv[1], "-psn", 4 ) == 0 )
argc = 1;
#endif
Sys_ParseArgs( argc, argv );
Sys_SetBinaryPath( Sys_Dirname( argv[ 0 ] ) );
Sys_SetDefaultInstallPath( DEFAULT_BASEDIR );
// Concatenate the command line for passing to Com_Init
for( i = 1; i < argc; i++ )
{
const qboolean containsSpaces = strchr(argv[i], ' ') != NULL;
if (containsSpaces)
Q_strcat( commandLine, sizeof( commandLine ), "\"" );
Q_strcat( commandLine, sizeof( commandLine ), argv[ i ] );
if (containsSpaces)
Q_strcat( commandLine, sizeof( commandLine ), "\"" );
Q_strcat( commandLine, sizeof( commandLine ), " " );
}
CON_Init( );
Com_Init( commandLine );
NET_Init( );
signal( SIGILL, Sys_SigHandler );
signal( SIGFPE, Sys_SigHandler );
signal( SIGSEGV, Sys_SigHandler );
signal( SIGTERM, Sys_SigHandler );
signal( SIGINT, Sys_SigHandler );
while( 1 )
{
Com_Frame( );
}
return 0;
}
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