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Diffstat (limited to 'code/sys/sys_main.c')
| -rw-r--r-- | code/sys/sys_main.c | 570 |
1 files changed, 570 insertions, 0 deletions
diff --git a/code/sys/sys_main.c b/code/sys/sys_main.c new file mode 100644 index 0000000..8f97ceb --- /dev/null +++ b/code/sys/sys_main.c @@ -0,0 +1,570 @@ +/* +=========================================================================== +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_Exit + +Single exit point (regular exit or in case of error) +================= +*/ +void Sys_Exit( int ex ) +{ + CON_Shutdown( ); + +#ifndef DEDICATED + SDL_Quit( ); +#endif + +#ifdef NDEBUG + exit( ex ); +#else + // Cause a backtrace on error exits + assert( ex == 0 ); + exit( ex ); +#endif +} + +/* +================= +Sys_Quit +================= +*/ +void Sys_Quit( void ) +{ + CL_Shutdown( ); + Sys_Exit( 0 ); +} + +/* +================= +Sys_GetProcessorFeatures +================= +*/ +cpuFeatures_t Sys_GetProcessorFeatures( void ) +{ + cpuFeatures_t features = 0; + +#ifndef DEDICATED + if( SDL_HasRDTSC( ) ) features |= CF_RDTSC; + if( SDL_HasMMX( ) ) features |= CF_MMX; + if( SDL_HasMMXExt( ) ) features |= CF_MMX_EXT; + if( SDL_Has3DNow( ) ) features |= CF_3DNOW; + if( SDL_Has3DNowExt( ) ) features |= CF_3DNOW_EXT; + 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]; + + CL_Shutdown (); + + va_start (argptr,error); + Q_vsnprintf (string, sizeof(string), error, argptr); + va_end (argptr); + + Sys_ErrorDialog( string ); + + Sys_Exit( 1 ); +} + +/* +================= +Sys_Warn +================= +*/ +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 ) ); +} + +/* +============ +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_TryLibraryLoad +================= +*/ +static void* Sys_TryLibraryLoad(const char* base, const char* gamedir, const char* fname, char* fqpath ) +{ + void* libHandle; + char* fn; + + *fqpath = 0; + + fn = FS_BuildOSPath( base, gamedir, fname ); + Com_Printf( "Sys_LoadDll(%s)... \n", fn ); + + libHandle = Sys_LoadLibrary(fn); + + if(!libHandle) { + Com_Printf( "Sys_LoadDll(%s) failed:\n\"%s\"\n", fn, Sys_LibraryError() ); + return NULL; + } + + Com_Printf ( "Sys_LoadDll(%s): succeeded ...\n", fn ); + Q_strncpyz ( fqpath , fn , MAX_QPATH ) ; + + return libHandle; +} + +/* +================= +Sys_LoadDll + +Used to load a development dll instead of a virtual machine +#1 look in fs_homepath +#2 look in fs_basepath +================= +*/ +void *Sys_LoadDll( const char *name, char *fqpath , + intptr_t (**entryPoint)(int, ...), + intptr_t (*systemcalls)(intptr_t, ...) ) +{ + void *libHandle; + void (*dllEntry)( intptr_t (*syscallptr)(intptr_t, ...) ); + char fname[MAX_OSPATH]; + char *basepath; + char *homepath; + char *gamedir; + + assert( name ); + + Q_snprintf (fname, sizeof(fname), "%s" ARCH_STRING DLL_EXT, name); + + // TODO: use fs_searchpaths from files.c + basepath = Cvar_VariableString( "fs_basepath" ); + homepath = Cvar_VariableString( "fs_homepath" ); + gamedir = Cvar_VariableString( "fs_game" ); + + libHandle = Sys_TryLibraryLoad(homepath, gamedir, fname, fqpath); + + if(!libHandle && basepath) + libHandle = Sys_TryLibraryLoad(basepath, gamedir, fname, fqpath); + + if(!libHandle) { + Com_Printf ( "Sys_LoadDll(%s) failed to load library\n", name ); + return NULL; + } + + dllEntry = Sys_LoadFunction( libHandle, "dllEntry" ); + *entryPoint = Sys_LoadFunction( libHandle, "vmMain" ); + + if ( !*entryPoint || !dllEntry ) + { + Com_Printf ( "Sys_LoadDll(%s) failed to find vmMain function:\n\"%s\" !\n", name, Sys_LibraryError( ) ); + Sys_UnloadLibrary(libHandle); + + return NULL; + } + + Com_Printf ( "Sys_LoadDll(%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 = __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 MACOS_X +# 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; + fprintf( stderr, "Received signal %d, exiting...\n", signal ); +#ifndef DEDICATED + CL_Shutdown(); +#endif + SV_Shutdown( "Signal caught" ); + } + + Sys_Exit( 0 ); // Exit with 0 to avoid recursive signals +} + +/* +================= +main +================= +*/ +int main( int argc, char **argv ) +{ + int i; + char commandLine[ MAX_STRING_CHARS ] = { 0 }; + +#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 + const SDL_version *ver = SDL_Linked_Version( ); + +#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_Print( "SDL version " MINSDL_VERSION " or greater required\n" ); + Sys_Exit( 1 ); + } +#endif + + Sys_PlatformInit( ); + + // Set the initial time base + Sys_Milliseconds( ); + + 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 ), " " ); + } + + Com_Init( commandLine ); + NET_Init( ); + + CON_Init( ); + + signal( SIGILL, Sys_SigHandler ); + signal( SIGFPE, Sys_SigHandler ); + signal( SIGSEGV, Sys_SigHandler ); + signal( SIGTERM, Sys_SigHandler ); + signal( SIGINT, Sys_SigHandler ); + + while( 1 ) + { + IN_Frame( ); + Com_Frame( ); + } + + return 0; +} + |