1 /*****************************************************************************
2 * main.c: main vlc source
3 * Includes the main() function for vlc. Parses command line, start interface
5 *****************************************************************************
6 * Copyright (C) 1998, 1999, 2000 VideoLAN
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
30 #include <signal.h> /* SIGHUP, SIGINT, SIGKILL */
31 #include <stdio.h> /* sprintf() */
34 #include <getopt.h> /* getopt() */
38 #include <Carbon/Carbon.h> /* Altivec detection */
42 #include <errno.h> /* ENOMEM */
43 #include <stdlib.h> /* getenv(), strtol(), */
44 #include <string.h> /* strerror() */
51 #include "tests.h" /* TestCPU() */
54 #include "stream_control.h"
55 #include "input_ext-intf.h"
58 #include "intf_playlist.h"
59 #include "interface.h"
61 #include "audio_output.h"
64 #include "video_output.h"
67 #include "beos_specific.h"
72 /*****************************************************************************
73 * Command line options constants. If something is changed here, be sure that
74 * GetConfiguration and Usage are also changed.
75 *****************************************************************************/
77 /* Long options return values - note that values corresponding to short options
78 * chars, and in general any regular char, should be avoided */
79 #define OPT_NOAUDIO 150
80 #define OPT_STEREO 151
83 #define OPT_NOVIDEO 160
84 #define OPT_DISPLAY 161
86 #define OPT_HEIGHT 163
88 #define OPT_FULLSCREEN 165
89 #define OPT_OVERLAY 166
92 #define OPT_SERVER 171
94 #define OPT_BROADCAST 173
97 #define OPT_MOTION 181
101 #define OPT_SYNCHRO 190
102 #define OPT_WARNING 191
111 static const struct option longopts[] =
113 /* name, has_arg, flag, val */
115 /* General/common options */
116 { "help", 0, 0, 'h' },
117 { "longhelp", 0, 0, 'H' },
118 { "version", 0, 0, 'v' },
120 /* Interface options */
121 { "intf", 1, 0, 'I' },
122 { "warning", 1, 0, OPT_WARNING },
125 { "noaudio", 0, 0, OPT_NOAUDIO },
126 { "aout", 1, 0, 'A' },
127 { "stereo", 0, 0, OPT_STEREO },
128 { "mono", 0, 0, OPT_MONO },
131 { "novideo", 0, 0, OPT_NOVIDEO },
132 { "vout", 1, 0, 'V' },
133 { "display", 1, 0, OPT_DISPLAY },
134 { "width", 1, 0, OPT_WIDTH },
135 { "height", 1, 0, OPT_HEIGHT },
136 { "grayscale", 0, 0, 'g' },
137 { "color", 0, 0, OPT_COLOR },
138 { "motion", 1, 0, OPT_MOTION },
139 { "idct", 1, 0, OPT_IDCT },
140 { "yuv", 1, 0, OPT_YUV },
141 { "fullscreen", 0, 0, OPT_FULLSCREEN },
142 { "overlay", 0, 0, OPT_OVERLAY },
145 { "dvdtitle", 1, 0, 't' },
146 { "dvdchapter", 1, 0, 'T' },
147 { "dvdaudio", 1, 0, 'a' },
148 { "dvdchannel", 1, 0, 'c' },
149 { "dvdsubtitle", 1, 0, 's' },
152 { "input", 1, 0, OPT_INPUT },
153 { "vlans", 0, 0, OPT_VLANS },
154 { "server", 1, 0, OPT_SERVER },
155 { "port", 1, 0, OPT_PORT },
156 { "broadcast", 0, 0, OPT_BROADCAST },
158 /* Synchro options */
159 { "synchro", 1, 0, OPT_SYNCHRO },
164 static const char *psz_shortopts = "hHvgt:T:a:s:c:I:A:V:";
168 /*****************************************************************************
169 * Global variable program_data - this is the one and only, see main.h
170 *****************************************************************************/
173 /*****************************************************************************
175 *****************************************************************************/
176 static void SetDefaultConfiguration ( void );
177 static int GetConfiguration ( int i_argc, char *ppsz_argv[],
179 static int GetFilenames ( int i_argc, char *ppsz_argv[] );
180 static void Usage ( int i_fashion );
181 static void Version ( void );
183 static void InitSignalHandler ( void );
184 static void SimpleSignalHandler ( int i_signal );
185 static void FatalSignalHandler ( int i_signal );
187 static int CPUCapabilities ( void );
189 /*****************************************************************************
190 * main: parse command line, start interface and spawn threads
191 *****************************************************************************
192 * Steps during program execution are:
193 * -configuration parsing and messages interface initialization
194 * -opening of audio output device and some global modules
195 * -execution of interface, which exit on error or on user request
196 * -closing of audio output device and some global modules
197 * On error, the spawned threads are canceled, and the open devices closed.
198 *****************************************************************************/
199 int main( int i_argc, char *ppsz_argv[], char *ppsz_env[] )
201 main_t main_data; /* root of all data - see main.h */
203 p_main = &main_data; /* set up the global variable */
206 * System specific initialization code
212 p_main->i_cpu_capabilities = CPUCapabilities();
215 * Test if our code is likely to run on this CPU
217 #if defined( __pentium__ ) || defined( __pentiumpro__ )
218 if( ! TestCPU( CPU_CAPABILITY_586 ) )
220 fprintf( stderr, "error: this program needs a Pentium CPU,\n"
221 "please try a version without Pentium support\n" );
227 if( ! TestCPU( CPU_CAPABILITY_MMX ) )
229 fprintf( stderr, "error: this program needs MMX extensions,\n"
230 "please try a version without MMX support\n" );
236 * Initialize messages interface
238 p_main->p_msg = intf_MsgCreate();
239 if( !p_main->p_msg ) /* start messages interface */
241 fprintf( stderr, "error: can't initialize messages interface (%s)\n",
246 intf_MsgImm( COPYRIGHT_MESSAGE );
251 if( GetConfiguration( i_argc, ppsz_argv, ppsz_env ) ) /* parse cmd line */
257 p_main->i_warning_level = main_GetIntVariable( INTF_WARNING_VAR,
258 INTF_WARNING_DEFAULT );
261 * Initialize playlist and get commandline files
263 p_main->p_playlist = intf_PlaylistCreate( );
264 if( !p_main->p_playlist )
266 intf_ErrMsg( "playlist error: playlist initialization failed" );
270 intf_PlaylistInit( p_main->p_playlist );
273 * Get input filenames given as commandline arguments
275 GetFilenames( i_argc, ppsz_argv );
278 * Initialize module bank
280 p_main->p_bank = module_CreateBank( );
281 if( !p_main->p_bank )
283 intf_ErrMsg( "module error: module bank initialization failed" );
284 intf_PlaylistDestroy( p_main->p_playlist );
288 module_InitBank( p_main->p_bank );
291 * Initialize shared resources and libraries
293 /* FIXME: no VLANs */
295 if( p_main->b_vlans && input_VlanCreate() )
297 /* On error during vlans initialization, switch off vlans */
298 intf_Msg( "Virtual LANs initialization failed : "
299 "vlans management is deactivated" );
307 p_main->p_intf = intf_Create();
308 if( !p_main->p_intf )
310 intf_ErrMsg( "intf error: interface initialization failed" );
311 module_DestroyBank( p_main->p_bank );
312 intf_PlaylistDestroy( p_main->p_playlist );
318 * Set signal handling policy for all threads
323 * Open audio device and start aout thread
325 if( p_main->b_audio )
327 p_main->p_aout = aout_CreateThread( NULL );
328 if( p_main->p_aout == NULL )
330 /* On error during audio initialization, switch off audio */
331 intf_ErrMsg( "aout error: audio initialization failed,"
332 " audio is deactivated" );
338 * Open video device and start vout thread
340 if( p_main->b_video )
342 p_main->p_vout = vout_CreateThread( NULL );
343 if( p_main->p_vout == NULL )
345 /* On error during video initialization, switch off video */
346 intf_ErrMsg( "vout error: video initialization failed,"
347 " video is deactivated" );
352 /* Flush messages before entering the main loop */
356 * This is the main loop
358 p_main->p_intf->pf_run( p_main->p_intf );
360 intf_Destroy( p_main->p_intf );
365 if( p_main->b_video )
367 vout_DestroyThread( p_main->p_vout, NULL );
373 if( p_main->b_audio )
375 aout_DestroyThread( p_main->p_aout, NULL );
379 * Free shared resources and libraries
383 if( p_main->b_vlans )
392 module_DestroyBank( p_main->p_bank );
397 intf_PlaylistDestroy( p_main->p_playlist );
401 * System specific cleaning code
407 * Terminate messages interface and program
409 intf_Msg( "intf: program terminated" );
415 /*****************************************************************************
416 * main_GetIntVariable: get the int value of an environment variable
417 *****************************************************************************
418 * This function is used to read some default parameters in modules.
419 *****************************************************************************/
420 int main_GetIntVariable( char *psz_name, int i_default )
422 char * psz_env; /* environment value */
423 char * psz_end; /* end of parsing index */
424 long int i_value; /* value */
426 psz_env = getenv( psz_name );
429 i_value = strtol( psz_env, &psz_end, 0 );
430 if( (*psz_env != '\0') && (*psz_end == '\0') )
438 /*****************************************************************************
439 * main_GetPszVariable: get the string value of an environment variable
440 *****************************************************************************
441 * This function is used to read some default parameters in modules.
442 *****************************************************************************/
443 char * main_GetPszVariable( char *psz_name, char *psz_default )
447 psz_env = getenv( psz_name );
452 return( psz_default );
455 /*****************************************************************************
456 * main_PutPszVariable: set the string value of an environment variable
457 *****************************************************************************
458 * This function is used to set some default parameters in modules. The use of
459 * this function will cause some memory leak: since some systems use the pointer
460 * passed to putenv to store the environment string, it can't be freed.
461 *****************************************************************************/
462 void main_PutPszVariable( char *psz_name, char *psz_value )
466 psz_env = malloc( strlen(psz_name) + strlen(psz_value) + 2 );
467 if( psz_env == NULL )
469 intf_ErrMsg( "intf error: cannot create psz_env (%s)",
474 sprintf( psz_env, "%s=%s", psz_name, psz_value );
475 if( putenv( psz_env ) )
477 intf_ErrMsg( "intf error: cannot putenv (%s)", strerror(errno) );
482 /*****************************************************************************
483 * main_PutIntVariable: set the integer value of an environment variable
484 *****************************************************************************
485 * This function is used to set some default parameters in modules. The use of
486 * this function will cause some memory leak: since some systems use the pointer
487 * passed to putenv to store the environment string, it can't be freed.
488 *****************************************************************************/
489 void main_PutIntVariable( char *psz_name, int i_value )
491 char psz_value[ 256 ]; /* buffer for value */
493 sprintf( psz_value, "%d", i_value );
494 main_PutPszVariable( psz_name, psz_value );
497 /* following functions are local */
499 /*****************************************************************************
500 * SetDefaultConfiguration: set default options
501 *****************************************************************************
502 * This function is called by GetConfiguration before command line is parsed.
503 * It sets all the default values required later by the program. At this stage,
504 * most structure are not yet allocated, so initialization must be done using
506 *****************************************************************************/
507 static void SetDefaultConfiguration( void )
510 * All features are activated by default except vlans
517 /*****************************************************************************
518 * GetConfiguration: parse command line
519 *****************************************************************************
520 * Parse command line and configuration file for configuration. If the inline
521 * help is requested, the function Usage() is called and the function returns
522 * -1 (causing main() to exit). The messages interface is initialized at this
523 * stage, but most structures are not allocated, so only environment should
525 *****************************************************************************/
526 static int GetConfiguration( int i_argc, char *ppsz_argv[], char *ppsz_env[] )
531 /* Set default configuration and copy arguments */
532 p_main->i_argc = i_argc;
533 p_main->ppsz_argv = ppsz_argv;
534 p_main->ppsz_env = ppsz_env;
535 SetDefaultConfiguration();
537 /* Get the executable name (similar to the basename command) */
538 p_main->psz_arg0 = p_pointer = ppsz_argv[ 0 ];
541 if( *p_pointer == '/' )
543 p_main->psz_arg0 = ++p_pointer;
551 /* Parse command line options */
554 while( ( c = getopt_long( i_argc, ppsz_argv, psz_shortopts, longopts, 0 ) ) != EOF )
558 /* General/common options */
559 case 'h': /* -h, --help */
563 case 'H': /* -H, --longhelp */
567 case 'v': /* -v, --version */
572 /* Interface warning messages level */
573 case 'I': /* -I, --intf */
574 main_PutPszVariable( INTF_METHOD_VAR, optarg );
576 case OPT_WARNING: /* --warning */
577 main_PutIntVariable( INTF_WARNING_VAR, atoi(optarg) );
581 case OPT_NOAUDIO: /* --noaudio */
584 case 'A': /* -A, --aout */
585 main_PutPszVariable( AOUT_METHOD_VAR, optarg );
587 case OPT_STEREO: /* --stereo */
588 main_PutIntVariable( AOUT_STEREO_VAR, 1 );
590 case OPT_MONO: /* --mono */
591 main_PutIntVariable( AOUT_STEREO_VAR, 0 );
595 case OPT_NOVIDEO: /* --novideo */
598 case 'V': /* -V, --vout */
599 main_PutPszVariable( VOUT_METHOD_VAR, optarg );
601 case OPT_DISPLAY: /* --display */
602 main_PutPszVariable( VOUT_DISPLAY_VAR, optarg );
604 case OPT_WIDTH: /* --width */
605 main_PutPszVariable( VOUT_WIDTH_VAR, optarg );
607 case OPT_HEIGHT: /* --height */
608 main_PutPszVariable( VOUT_HEIGHT_VAR, optarg );
610 case 'g': /* -g, --grayscale */
611 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 1 );
613 case OPT_COLOR: /* --color */
614 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 0 );
616 case OPT_FULLSCREEN: /* --fullscreen */
617 main_PutIntVariable( VOUT_FULLSCREEN_VAR, 1 );
619 case OPT_OVERLAY: /* --overlay */
620 main_PutIntVariable( VOUT_OVERLAY_VAR, 1 );
622 case OPT_MOTION: /* --motion */
623 main_PutPszVariable( MOTION_METHOD_VAR, optarg );
625 case OPT_IDCT: /* --idct */
626 main_PutPszVariable( IDCT_METHOD_VAR, optarg );
628 case OPT_YUV: /* --yuv */
629 main_PutPszVariable( YUV_METHOD_VAR, optarg );
634 main_PutIntVariable( INPUT_TITLE_VAR, atoi(optarg) );
637 main_PutIntVariable( INPUT_CHAPTER_VAR, atoi(optarg) );
640 if ( ! strcmp(optarg, "ac3") )
641 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_AC3 );
642 else if ( ! strcmp(optarg, "lpcm") )
643 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_LPCM );
644 else if ( ! strcmp(optarg, "mpeg") )
645 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_MPEG );
647 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_NOAUDIO );
650 main_PutIntVariable( INPUT_CHANNEL_VAR, atoi(optarg) );
653 main_PutIntVariable( INPUT_SUBTITLE_VAR, atoi(optarg) );
657 case OPT_INPUT: /* --input */
658 main_PutPszVariable( INPUT_METHOD_VAR, optarg );
660 case OPT_VLANS: /* --vlans */
663 case OPT_SERVER: /* --server */
664 main_PutPszVariable( INPUT_SERVER_VAR, optarg );
666 case OPT_PORT: /* --port */
667 main_PutPszVariable( INPUT_PORT_VAR, optarg );
669 case OPT_BROADCAST: /* --broadcast */
670 main_PutIntVariable( INPUT_BROADCAST_VAR, 1 );
673 /* Synchro options */
675 main_PutPszVariable( VPAR_SYNCHRO_VAR, optarg );
678 /* Internal error: unknown option */
681 intf_ErrMsg( "intf error: unknown option `%s'", ppsz_argv[optind - 1] );
691 /*****************************************************************************
692 * GetFilenames: parse command line options which are not flags
693 *****************************************************************************
694 * Parse command line for input files.
695 *****************************************************************************/
696 static int GetFilenames( int i_argc, char *ppsz_argv[] )
700 /* We assume that the remaining parameters are filenames */
701 for( i_opt = optind; i_opt < i_argc; i_opt++ )
703 intf_PlaylistAdd( p_main->p_playlist, PLAYLIST_END,
704 ppsz_argv[ i_opt ] );
710 /*****************************************************************************
711 * Usage: print program usage
712 *****************************************************************************
713 * Print a short inline help. Message interface is initialized at this stage.
714 *****************************************************************************/
715 static void Usage( int i_fashion )
718 intf_MsgImm( "Usage: %s [options] [parameters] [file]...",
721 if( i_fashion == USAGE )
723 intf_MsgImm( "Try `%s --help' for more information.",
729 intf_MsgImm( "\nOptions:"
730 "\n -I, --intf <module> \tinterface method"
731 "\n --warning <level> \tdisplay warning messages"
733 "\n --noaudio \tdisable audio"
734 "\n -A, --aout <module> \taudio output method"
735 "\n --stereo, --mono \tstereo/mono audio"
737 "\n --novideo \tdisable video"
738 "\n -V, --vout <module> \tvideo output method"
739 "\n --display <display> \tdisplay string"
740 "\n --width <w>, --height <h> \tdisplay dimensions"
741 "\n -g, --grayscale \tgrayscale output"
742 "\n --fullscreen \tfullscreen output"
743 "\n --overlay \taccelerated display"
744 "\n --color \tcolor output"
745 "\n --motion <module> \tmotion compensation method"
746 "\n --idct <module> \tIDCT method"
747 "\n --yuv <module> \tYUV method"
748 "\n --synchro <type> \tforce synchro algorithm"
750 "\n -t, --dvdtitle <num> \tchoose DVD title"
751 "\n -T, --dvdchapter <num> \tchoose DVD chapter"
752 "\n -a, --dvdaudio <type> \tchoose DVD audio type"
753 "\n -c, --dvdchannel <channel> \tchoose DVD audio channel"
754 "\n -s, --dvdsubtitle <channel> \tchoose DVD subtitle channel"
756 "\n --input \tinput method"
757 "\n --vlans \tenable vlans"
758 "\n --server <host> \tvideo server address"
759 "\n --port <port> \tvideo server port"
760 "\n --broadcast \tlisten to a broadcast"
762 "\n -h, --help \tprint help and exit"
763 "\n -H, --longhelp \tprint long help and exit"
764 "\n -v, --version \toutput version information and exit" );
766 if( i_fashion == SHORT_HELP )
769 /* Interface parameters */
770 intf_MsgImm( "\nInterface parameters:"
771 "\n " INTF_METHOD_VAR "=<method name> \tinterface method"
772 "\n " INTF_INIT_SCRIPT_VAR "=<filename> \tinitialization script"
773 "\n " INTF_CHANNELS_VAR "=<filename> \tchannels list"
774 "\n " INTF_WARNING_VAR "=<level> \twarning level" );
776 /* Audio parameters */
777 intf_MsgImm( "\nAudio parameters:"
778 "\n " AOUT_METHOD_VAR "=<method name> \taudio method"
779 "\n " AOUT_DSP_VAR "=<filename> \tdsp device path"
780 "\n " AOUT_STEREO_VAR "={1|0} \tstereo or mono output"
781 "\n " AOUT_RATE_VAR "=<rate> \toutput rate" );
783 /* Video parameters */
784 intf_MsgImm( "\nVideo parameters:"
785 "\n " VOUT_METHOD_VAR "=<method name> \tdisplay method"
786 "\n " VOUT_DISPLAY_VAR "=<display name> \tdisplay used"
787 "\n " VOUT_WIDTH_VAR "=<width> \tdisplay width"
788 "\n " VOUT_HEIGHT_VAR "=<height> \tdislay height"
789 "\n " VOUT_FB_DEV_VAR "=<filename> \tframebuffer device path"
790 "\n " VOUT_GRAYSCALE_VAR "={1|0} \tgrayscale or color output"
791 "\n " VOUT_FULLSCREEN_VAR "={1|0} \tfullscreen"
792 "\n " VOUT_OVERLAY_VAR "={1|0} \toverlay"
793 "\n " MOTION_METHOD_VAR "=<method name> \tmotion compensation method"
794 "\n " IDCT_METHOD_VAR "=<method name> \tIDCT method"
795 "\n " YUV_METHOD_VAR "=<method name> \tYUV method"
796 "\n " VPAR_SYNCHRO_VAR "={I|I+|IP|IP+|IPB} \tsynchro algorithm" );
799 intf_MsgImm( "\nDVD parameters:"
800 "\n " INPUT_DVD_DEVICE_VAR "=<device> \tDVD device"
801 "\n " INPUT_TITLE_VAR "=<title> \ttitle number"
802 "\n " INPUT_CHAPTER_VAR "=<chapter> \tchapter number"
803 "\n " INPUT_AUDIO_VAR "={ac3|lpcm|mpeg|off} \taudio type"
804 "\n " INPUT_CHANNEL_VAR "=[0-15] \taudio channel"
805 "\n " INPUT_SUBTITLE_VAR "=[0-31] \tsubtitle channel" );
807 /* Input parameters */
808 intf_MsgImm( "\nInput parameters:"
809 "\n " INPUT_SERVER_VAR "=<hostname> \tvideo server"
810 "\n " INPUT_PORT_VAR "=<port> \tvideo server port"
811 "\n " INPUT_IFACE_VAR "=<interface> \tnetwork interface"
812 "\n " INPUT_BROADCAST_VAR "={1|0} \tbroadcast mode"
813 "\n " INPUT_VLAN_SERVER_VAR "=<hostname> \tvlan server"
814 "\n " INPUT_VLAN_PORT_VAR "=<port> \tvlan server port" );
818 /*****************************************************************************
819 * Version: print complete program version
820 *****************************************************************************
821 * Print complete program version and build number.
822 *****************************************************************************/
823 static void Version( void )
825 intf_MsgImm( VERSION_MESSAGE
826 "This program comes with NO WARRANTY, to the extent permitted by law.\n"
827 "You may redistribute it under the terms of the GNU General Public License;\n"
828 "see the file named COPYING for details.\n"
829 "Written by the VideoLAN team at Ecole Centrale, Paris." );
832 /*****************************************************************************
833 * InitSignalHandler: system signal handler initialization
834 *****************************************************************************
835 * Set the signal handlers. SIGTERM is not intercepted, because we need at
836 * at least a method to kill the program when all other methods failed, and
837 * when we don't want to use SIGKILL.
838 *****************************************************************************/
839 static void InitSignalHandler( void )
841 /* Termination signals */
842 signal( SIGHUP, FatalSignalHandler );
843 signal( SIGINT, FatalSignalHandler );
844 signal( SIGQUIT, FatalSignalHandler );
847 signal( SIGALRM, SimpleSignalHandler );
848 signal( SIGPIPE, SimpleSignalHandler );
852 /*****************************************************************************
853 * SimpleSignalHandler: system signal handler
854 *****************************************************************************
855 * This function is called when a non fatal signal is received by the program.
856 *****************************************************************************/
857 static void SimpleSignalHandler( int i_signal )
859 /* Acknowledge the signal received */
860 intf_WarnMsg( 0, "intf: ignoring signal %d", i_signal );
864 /*****************************************************************************
865 * FatalSignalHandler: system signal handler
866 *****************************************************************************
867 * This function is called when a fatal signal is received by the program.
868 * It tries to end the program in a clean way.
869 *****************************************************************************/
870 static void FatalSignalHandler( int i_signal )
872 /* Once a signal has been trapped, the termination sequence will be
873 * armed and following signals will be ignored to avoid sending messages
874 * to an interface having been destroyed */
875 signal( SIGHUP, SIG_IGN );
876 signal( SIGINT, SIG_IGN );
877 signal( SIGQUIT, SIG_IGN );
879 /* Acknowledge the signal received */
880 intf_ErrMsgImm( "intf error: signal %d received, exiting", i_signal );
882 /* Try to terminate everything - this is done by requesting the end of the
883 * interface thread */
884 p_main->p_intf->b_die = 1;
887 /*****************************************************************************
888 * CPUCapabilities: list the processors MMX support and other capabilities
889 *****************************************************************************
890 * This function is called to list extensions the CPU may have.
891 *****************************************************************************/
892 static int CPUCapabilities( void )
894 int i_capabilities = CPU_CAPABILITY_NONE;
896 #if defined( SYS_BEOS )
897 i_capabilities |= CPU_CAPABILITY_486
899 | CPU_CAPABILITY_MMX;
901 #elif defined( SYS_DARWIN1_3 )
903 long l_attributes = 0;
905 err = Gestalt( gestaltPowerPCProcessorFeatures, &l_attributes );
908 ( (1 << gestaltPowerPCHasVectorInstructions) & l_attributes ) )
910 i_capabilities |= CPU_CAPABILITY_ALTIVEC;
913 #elif defined( __i386__ )
914 unsigned int i_eax, i_ebx, i_ecx, i_edx;
917 # define cpuid( a ) \
918 asm volatile ( "cpuid" \
926 /* test for a 486 CPU */
927 asm volatile ( "pushfl
930 xorl $0x200000, %%eax
942 return( i_capabilities );
945 i_capabilities |= CPU_CAPABILITY_486;
947 /* the CPU supports the CPUID instruction - get its level */
952 return( i_capabilities );
955 /* FIXME: this isn't correct, since some 486s have cpuid */
956 i_capabilities |= CPU_CAPABILITY_586;
958 /* borrowed from mpeg2dec */
959 b_amd = ( i_ebx == 0x68747541 ) && ( i_ecx == 0x444d4163 )
960 && ( i_edx == 0x69746e65 );
962 /* test for the MMX flag */
965 if( ! (i_edx & 0x00800000) )
967 return( i_capabilities );
970 i_capabilities |= CPU_CAPABILITY_MMX;
972 if( i_edx & 0x02000000 )
974 i_capabilities |= CPU_CAPABILITY_MMXEXT;
977 /* test for additional capabilities */
980 if( i_eax < 0x80000001 )
982 return( i_capabilities );
985 /* list these additional capabilities */
988 if( i_edx & 0x80000000 )
990 i_capabilities |= CPU_CAPABILITY_3DNOW;
993 if( b_amd && ( i_edx & 0x00400000 ) )
995 i_capabilities |= CPU_CAPABILITY_MMXEXT;
999 /* default behaviour */
1002 return( i_capabilities );