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
7 * $Id: main.c,v 1.82 2001/04/06 09:15:47 sam Exp $
9 * Authors: Vincent Seguin <seguin@via.ecp.fr>
10 * Samuel Hocevar <sam@zoy.org>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
25 *****************************************************************************/
27 /*****************************************************************************
29 *****************************************************************************/
32 #include <signal.h> /* SIGHUP, SIGINT, SIGKILL */
33 #include <stdio.h> /* sprintf() */
35 #ifdef HAVE_GETOPT_LONG
37 # include <getopt.h> /* getopt() */
40 # include "GNUgetopt/getopt.h"
44 #include <mach/mach.h> /* Altivec detection */
45 #include <mach/mach_error.h> /* some day the header files||compiler *
46 will define it for us */
47 #include <mach/bootstrap.h>
51 #include <errno.h> /* ENOMEM */
52 #include <stdlib.h> /* getenv(), strtol(), */
53 #include <string.h> /* strerror() */
60 #include "tests.h" /* TestCPU() */
63 #include "stream_control.h"
64 #include "input_ext-intf.h"
67 #include "intf_playlist.h"
68 #include "interface.h"
70 #include "audio_output.h"
73 #include "video_output.h"
76 #include "beos_specific.h"
81 /*****************************************************************************
82 * Command line options constants. If something is changed here, be sure that
83 * GetConfiguration and Usage are also changed.
84 *****************************************************************************/
86 /* Long options return values - note that values corresponding to short options
87 * chars, and in general any regular char, should be avoided */
88 #define OPT_NOAUDIO 150
89 #define OPT_STEREO 151
92 #define OPT_NOVIDEO 160
93 #define OPT_DISPLAY 161
95 #define OPT_HEIGHT 163
97 #define OPT_FULLSCREEN 165
98 #define OPT_OVERLAY 166
100 #define OPT_VLANS 170
101 #define OPT_SERVER 171
103 #define OPT_BROADCAST 173
105 #define OPT_INPUT 180
106 #define OPT_MOTION 181
110 #define OPT_SYNCHRO 190
111 #define OPT_WARNING 191
112 #define OPT_VERSION 192
120 static const struct option longopts[] =
122 /* name, has_arg, flag, val */
124 /* General/common options */
125 { "help", 0, 0, 'h' },
126 { "longhelp", 0, 0, 'H' },
127 { "version", 0, 0, OPT_VERSION },
129 /* Interface options */
130 { "intf", 1, 0, 'I' },
131 { "warning", 1, 0, OPT_WARNING },
134 { "noaudio", 0, 0, OPT_NOAUDIO },
135 { "aout", 1, 0, 'A' },
136 { "stereo", 0, 0, OPT_STEREO },
137 { "mono", 0, 0, OPT_MONO },
140 { "novideo", 0, 0, OPT_NOVIDEO },
141 { "vout", 1, 0, 'V' },
142 { "display", 1, 0, OPT_DISPLAY },
143 { "width", 1, 0, OPT_WIDTH },
144 { "height", 1, 0, OPT_HEIGHT },
145 { "grayscale", 0, 0, 'g' },
146 { "color", 0, 0, OPT_COLOR },
147 { "motion", 1, 0, OPT_MOTION },
148 { "idct", 1, 0, OPT_IDCT },
149 { "yuv", 1, 0, OPT_YUV },
150 { "fullscreen", 0, 0, OPT_FULLSCREEN },
151 { "overlay", 0, 0, OPT_OVERLAY },
154 { "dvdtitle", 1, 0, 't' },
155 { "dvdchapter", 1, 0, 'T' },
156 { "dvdaudio", 1, 0, 'a' },
157 { "dvdchannel", 1, 0, 'c' },
158 { "dvdsubtitle", 1, 0, 's' },
161 { "input", 1, 0, OPT_INPUT },
162 { "vlans", 0, 0, OPT_VLANS },
163 { "server", 1, 0, OPT_SERVER },
164 { "port", 1, 0, OPT_PORT },
165 { "broadcast", 0, 0, OPT_BROADCAST },
167 /* Synchro options */
168 { "synchro", 1, 0, OPT_SYNCHRO },
173 static const char *psz_shortopts = "hHvgt:T:a:s:c:I:A:V:";
175 /*****************************************************************************
176 * Global variable program_data - this is the one and only, see main.h
177 *****************************************************************************/
180 /*****************************************************************************
182 *****************************************************************************/
183 static int GetConfiguration ( int i_argc, char *ppsz_argv[],
185 static int GetFilenames ( int i_argc, char *ppsz_argv[] );
186 static void Usage ( int i_fashion );
187 static void Version ( void );
189 static void InitSignalHandler ( void );
190 static void SimpleSignalHandler ( int i_signal );
191 static void FatalSignalHandler ( int i_signal );
193 static int CPUCapabilities ( void );
195 /*****************************************************************************
196 * main: parse command line, start interface and spawn threads
197 *****************************************************************************
198 * Steps during program execution are:
199 * -configuration parsing and messages interface initialization
200 * -opening of audio output device and some global modules
201 * -execution of interface, which exit on error or on user request
202 * -closing of audio output device and some global modules
203 * On error, the spawned threads are canceled, and the open devices closed.
204 *****************************************************************************/
205 int main( int i_argc, char *ppsz_argv[], char *ppsz_env[] )
207 main_t main_data; /* root of all data - see main.h */
209 p_main = &main_data; /* set up the global variable */
212 * System specific initialization code
218 p_main->i_cpu_capabilities = CPUCapabilities();
221 * Test if our code is likely to run on this CPU
223 #if defined( __pentium__ ) || defined( __pentiumpro__ )
224 if( ! TestCPU( CPU_CAPABILITY_586 ) )
226 fprintf( stderr, "error: this program needs a Pentium CPU,\n"
227 "please try a version without Pentium support\n" );
233 if( ! TestCPU( CPU_CAPABILITY_MMX ) )
235 fprintf( stderr, "error: this program needs MMX extensions,\n"
236 "please try a version without MMX support\n" );
242 * Initialize messages interface
244 p_main->p_msg = intf_MsgCreate();
245 if( !p_main->p_msg ) /* start messages interface */
247 fprintf( stderr, "error: can't initialize messages interface (%s)\n",
252 intf_MsgImm( COPYRIGHT_MESSAGE );
257 if( GetConfiguration( i_argc, ppsz_argv, ppsz_env ) ) /* parse cmd line */
264 * Initialize playlist and get commandline files
266 p_main->p_playlist = intf_PlaylistCreate( );
267 if( !p_main->p_playlist )
269 intf_ErrMsg( "playlist error: playlist initialization failed" );
273 intf_PlaylistInit( p_main->p_playlist );
276 * Get input filenames given as commandline arguments
278 GetFilenames( i_argc, ppsz_argv );
281 * Initialize module bank
283 p_main->p_bank = module_CreateBank( );
284 if( !p_main->p_bank )
286 intf_ErrMsg( "module error: module bank initialization failed" );
287 intf_PlaylistDestroy( p_main->p_playlist );
291 module_InitBank( p_main->p_bank );
294 * Initialize shared resources and libraries
296 /* FIXME: no VLANs */
298 if( p_main->b_vlans && input_VlanCreate() )
300 /* On error during vlans initialization, switch off vlans */
301 intf_Msg( "Virtual LANs initialization failed : "
302 "vlans management is deactivated" );
310 p_main->p_intf = intf_Create();
311 if( !p_main->p_intf )
313 intf_ErrMsg( "intf error: interface initialization failed" );
314 module_DestroyBank( p_main->p_bank );
315 intf_PlaylistDestroy( p_main->p_playlist );
321 * Set signal handling policy for all threads
326 * Open audio device and start aout thread
328 if( p_main->b_audio )
330 p_main->p_aout = aout_CreateThread( NULL );
331 if( p_main->p_aout == NULL )
333 /* On error during audio initialization, switch off audio */
334 intf_ErrMsg( "aout error: audio initialization failed,"
335 " audio is deactivated" );
341 * Open video device and start vout thread
343 if( p_main->b_video )
345 p_main->p_vout = vout_CreateThread( NULL );
346 if( p_main->p_vout == NULL )
348 /* On error during video initialization, switch off video */
349 intf_ErrMsg( "vout error: video initialization failed,"
350 " video is deactivated" );
355 /* Flush messages before entering the main loop */
359 * This is the main loop
361 p_main->p_intf->pf_run( p_main->p_intf );
363 intf_Destroy( p_main->p_intf );
368 if( p_main->b_video )
370 vout_DestroyThread( p_main->p_vout, NULL );
376 if( p_main->b_audio )
378 aout_DestroyThread( p_main->p_aout, NULL );
382 * Free shared resources and libraries
386 if( p_main->b_vlans )
395 module_DestroyBank( p_main->p_bank );
400 intf_PlaylistDestroy( p_main->p_playlist );
404 * System specific cleaning code
410 * Terminate messages interface and program
412 intf_Msg( "intf: program terminated" );
418 /*****************************************************************************
419 * main_GetIntVariable: get the int value of an environment variable
420 *****************************************************************************
421 * This function is used to read some default parameters in modules.
422 *****************************************************************************/
423 int main_GetIntVariable( char *psz_name, int i_default )
425 char * psz_env; /* environment value */
426 char * psz_end; /* end of parsing index */
427 long int i_value; /* value */
429 psz_env = getenv( psz_name );
432 i_value = strtol( psz_env, &psz_end, 0 );
433 if( (*psz_env != '\0') && (*psz_end == '\0') )
441 /*****************************************************************************
442 * main_GetPszVariable: get the string value of an environment variable
443 *****************************************************************************
444 * This function is used to read some default parameters in modules.
445 *****************************************************************************/
446 char * main_GetPszVariable( char *psz_name, char *psz_default )
450 psz_env = getenv( psz_name );
455 return( psz_default );
458 /*****************************************************************************
459 * main_PutPszVariable: set the string value of an environment variable
460 *****************************************************************************
461 * This function is used to set some default parameters in modules. The use of
462 * this function will cause some memory leak: since some systems use the pointer
463 * passed to putenv to store the environment string, it can't be freed.
464 *****************************************************************************/
465 void main_PutPszVariable( char *psz_name, char *psz_value )
469 psz_env = malloc( strlen(psz_name) + strlen(psz_value) + 2 );
470 if( psz_env == NULL )
472 intf_ErrMsg( "intf error: cannot create psz_env (%s)",
477 sprintf( psz_env, "%s=%s", psz_name, psz_value );
478 if( putenv( psz_env ) )
480 intf_ErrMsg( "intf error: cannot putenv (%s)", strerror(errno) );
485 /*****************************************************************************
486 * main_PutIntVariable: set the integer value of an environment variable
487 *****************************************************************************
488 * This function is used to set some default parameters in modules. The use of
489 * this function will cause some memory leak: since some systems use the pointer
490 * passed to putenv to store the environment string, it can't be freed.
491 *****************************************************************************/
492 void main_PutIntVariable( char *psz_name, int i_value )
494 char psz_value[ 256 ]; /* buffer for value */
496 sprintf( psz_value, "%d", i_value );
497 main_PutPszVariable( psz_name, psz_value );
500 /* following functions are local */
502 /*****************************************************************************
503 * GetConfiguration: parse command line
504 *****************************************************************************
505 * Parse command line and configuration file for configuration. If the inline
506 * help is requested, the function Usage() is called and the function returns
507 * -1 (causing main() to exit). The messages interface is initialized at this
508 * stage, but most structures are not allocated, so only environment should
510 *****************************************************************************/
511 static int GetConfiguration( int i_argc, char *ppsz_argv[], char *ppsz_env[] )
516 /* Set default configuration and copy arguments */
517 p_main->i_argc = i_argc;
518 p_main->ppsz_argv = ppsz_argv;
519 p_main->ppsz_env = ppsz_env;
525 p_main->i_warning_level = 4;
527 /* Get the executable name (similar to the basename command) */
528 p_main->psz_arg0 = p_tmp = ppsz_argv[ 0 ];
533 p_main->psz_arg0 = ++p_tmp;
541 /* Parse command line options */
543 while( ( i_cmd = getopt_long( i_argc, ppsz_argv,
544 psz_shortopts, longopts, 0 ) ) != EOF )
548 /* General/common options */
549 case 'h': /* -h, --help */
553 case 'H': /* -H, --longhelp */
557 case OPT_VERSION: /* --version */
561 case 'v': /* -v, --verbose */
562 p_main->i_warning_level--;
565 /* Interface warning messages level */
566 case 'I': /* -I, --intf */
567 main_PutPszVariable( INTF_METHOD_VAR, optarg );
569 case OPT_WARNING: /* --warning */
570 intf_ErrMsg( "intf error: `--warning' is deprecated, use `-v'" );
571 p_main->i_warning_level = atoi(optarg);
575 case OPT_NOAUDIO: /* --noaudio */
578 case 'A': /* -A, --aout */
579 main_PutPszVariable( AOUT_METHOD_VAR, optarg );
581 case OPT_STEREO: /* --stereo */
582 main_PutIntVariable( AOUT_STEREO_VAR, 1 );
584 case OPT_MONO: /* --mono */
585 main_PutIntVariable( AOUT_STEREO_VAR, 0 );
589 case OPT_NOVIDEO: /* --novideo */
592 case 'V': /* -V, --vout */
593 main_PutPszVariable( VOUT_METHOD_VAR, optarg );
595 case OPT_DISPLAY: /* --display */
596 main_PutPszVariable( VOUT_DISPLAY_VAR, optarg );
598 case OPT_WIDTH: /* --width */
599 main_PutPszVariable( VOUT_WIDTH_VAR, optarg );
601 case OPT_HEIGHT: /* --height */
602 main_PutPszVariable( VOUT_HEIGHT_VAR, optarg );
604 case 'g': /* -g, --grayscale */
605 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 1 );
607 case OPT_COLOR: /* --color */
608 main_PutIntVariable( VOUT_GRAYSCALE_VAR, 0 );
610 case OPT_FULLSCREEN: /* --fullscreen */
611 main_PutIntVariable( VOUT_FULLSCREEN_VAR, 1 );
613 case OPT_OVERLAY: /* --overlay */
614 main_PutIntVariable( VOUT_OVERLAY_VAR, 1 );
616 case OPT_MOTION: /* --motion */
617 main_PutPszVariable( MOTION_METHOD_VAR, optarg );
619 case OPT_IDCT: /* --idct */
620 main_PutPszVariable( IDCT_METHOD_VAR, optarg );
622 case OPT_YUV: /* --yuv */
623 main_PutPszVariable( YUV_METHOD_VAR, optarg );
628 main_PutIntVariable( INPUT_TITLE_VAR, atoi(optarg) );
631 main_PutIntVariable( INPUT_CHAPTER_VAR, atoi(optarg) );
634 if ( ! strcmp(optarg, "ac3") )
635 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_AC3 );
636 else if ( ! strcmp(optarg, "lpcm") )
637 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_LPCM );
638 else if ( ! strcmp(optarg, "mpeg") )
639 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_MPEG );
641 main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_NOAUDIO );
644 main_PutIntVariable( INPUT_CHANNEL_VAR, atoi(optarg) );
647 main_PutIntVariable( INPUT_SUBTITLE_VAR, atoi(optarg) );
651 case OPT_INPUT: /* --input */
652 main_PutPszVariable( INPUT_METHOD_VAR, optarg );
654 case OPT_VLANS: /* --vlans */
657 case OPT_SERVER: /* --server */
658 main_PutPszVariable( INPUT_SERVER_VAR, optarg );
660 case OPT_PORT: /* --port */
661 main_PutPszVariable( INPUT_PORT_VAR, optarg );
663 case OPT_BROADCAST: /* --broadcast */
664 main_PutIntVariable( INPUT_BROADCAST_VAR, 1 );
667 /* Synchro options */
669 main_PutPszVariable( VPAR_SYNCHRO_VAR, optarg );
672 /* Internal error: unknown option */
675 intf_ErrMsg( "intf error: unknown option `%s'",
676 ppsz_argv[optind - 1] );
683 if( p_main->i_warning_level < 0 )
685 p_main->i_warning_level = 0;
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 -v, --verbose \tverbose mode (cumulative)"
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 --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" );
775 /* Audio parameters */
776 intf_MsgImm( "\nAudio parameters:"
777 "\n " AOUT_METHOD_VAR "=<method name> \taudio method"
778 "\n " AOUT_DSP_VAR "=<filename> \tdsp device path"
779 "\n " AOUT_STEREO_VAR "={1|0} \tstereo or mono output"
780 "\n " AOUT_RATE_VAR "=<rate> \toutput rate" );
782 /* Video parameters */
783 intf_MsgImm( "\nVideo parameters:"
784 "\n " VOUT_METHOD_VAR "=<method name> \tdisplay method"
785 "\n " VOUT_DISPLAY_VAR "=<display name> \tdisplay used"
786 "\n " VOUT_WIDTH_VAR "=<width> \tdisplay width"
787 "\n " VOUT_HEIGHT_VAR "=<height> \tdislay height"
788 "\n " VOUT_FB_DEV_VAR "=<filename> \tframebuffer device path"
789 "\n " VOUT_GRAYSCALE_VAR "={1|0} \tgrayscale or color output"
790 "\n " VOUT_FULLSCREEN_VAR "={1|0} \tfullscreen"
791 "\n " VOUT_OVERLAY_VAR "={1|0} \toverlay"
792 "\n " MOTION_METHOD_VAR "=<method name> \tmotion compensation method"
793 "\n " IDCT_METHOD_VAR "=<method name> \tIDCT method"
794 "\n " YUV_METHOD_VAR "=<method name> \tYUV method"
795 "\n " VPAR_SYNCHRO_VAR "={I|I+|IP|IP+|IPB} \tsynchro algorithm" );
798 intf_MsgImm( "\nDVD parameters:"
799 "\n " INPUT_DVD_DEVICE_VAR "=<device> \tDVD device"
800 "\n " INPUT_TITLE_VAR "=<title> \ttitle number"
801 "\n " INPUT_CHAPTER_VAR "=<chapter> \tchapter number"
802 "\n " INPUT_AUDIO_VAR "={ac3|lpcm|mpeg|off} \taudio type"
803 "\n " INPUT_CHANNEL_VAR "=[0-15] \taudio channel"
804 "\n " INPUT_SUBTITLE_VAR "=[0-31] \tsubtitle channel" );
806 /* Input parameters */
807 intf_MsgImm( "\nInput parameters:"
808 "\n " INPUT_SERVER_VAR "=<hostname> \tvideo server"
809 "\n " INPUT_PORT_VAR "=<port> \tvideo server port"
810 "\n " INPUT_IFACE_VAR "=<interface> \tnetwork interface"
811 "\n " INPUT_BROADCAST_VAR "={1|0} \tbroadcast mode"
812 "\n " INPUT_VLAN_SERVER_VAR "=<hostname> \tvlan server"
813 "\n " INPUT_VLAN_PORT_VAR "=<port> \tvlan server port" );
817 /*****************************************************************************
818 * Version: print complete program version
819 *****************************************************************************
820 * Print complete program version and build number.
821 *****************************************************************************/
822 static void Version( void )
824 intf_MsgImm( VERSION_MESSAGE
825 "This program comes with NO WARRANTY, to the extent permitted by law.\n"
826 "You may redistribute it under the terms of the GNU General Public License;\n"
827 "see the file named COPYING for details.\n"
828 "Written by the VideoLAN team at Ecole Centrale, Paris." );
831 /*****************************************************************************
832 * InitSignalHandler: system signal handler initialization
833 *****************************************************************************
834 * Set the signal handlers. SIGTERM is not intercepted, because we need at
835 * at least a method to kill the program when all other methods failed, and
836 * when we don't want to use SIGKILL.
837 *****************************************************************************/
838 static void InitSignalHandler( void )
840 /* Termination signals */
841 signal( SIGHUP, FatalSignalHandler );
842 signal( SIGINT, FatalSignalHandler );
843 signal( SIGQUIT, FatalSignalHandler );
846 signal( SIGALRM, SimpleSignalHandler );
847 signal( SIGPIPE, SimpleSignalHandler );
851 /*****************************************************************************
852 * SimpleSignalHandler: system signal handler
853 *****************************************************************************
854 * This function is called when a non fatal signal is received by the program.
855 *****************************************************************************/
856 static void SimpleSignalHandler( int i_signal )
858 /* Acknowledge the signal received */
859 intf_WarnMsg( 0, "intf: ignoring signal %d", i_signal );
863 /*****************************************************************************
864 * FatalSignalHandler: system signal handler
865 *****************************************************************************
866 * This function is called when a fatal signal is received by the program.
867 * It tries to end the program in a clean way.
868 *****************************************************************************/
869 static void FatalSignalHandler( int i_signal )
871 /* Once a signal has been trapped, the termination sequence will be
872 * armed and following signals will be ignored to avoid sending messages
873 * to an interface having been destroyed */
874 signal( SIGHUP, SIG_IGN );
875 signal( SIGINT, SIG_IGN );
876 signal( SIGQUIT, SIG_IGN );
878 /* Acknowledge the signal received */
879 intf_ErrMsgImm( "intf error: signal %d received, exiting", i_signal );
881 /* Try to terminate everything - this is done by requesting the end of the
882 * interface thread */
883 p_main->p_intf->b_die = 1;
886 /*****************************************************************************
887 * CPUCapabilities: list the processors MMX support and other capabilities
888 *****************************************************************************
889 * This function is called to list extensions the CPU may have.
890 *****************************************************************************/
891 static int CPUCapabilities( void )
893 int i_capabilities = CPU_CAPABILITY_NONE;
895 #if defined( SYS_BEOS )
896 i_capabilities |= CPU_CAPABILITY_486
898 | CPU_CAPABILITY_MMX;
900 #elif defined( SYS_DARWIN1_3 )
902 struct host_basic_info hi;
904 host_name_port_t host;
907 char *psz_name, *psz_subname;
909 /* Should 'never' fail? */
910 host = mach_host_self();
912 i_size = sizeof( hi ) / sizeof( int );
913 ret = host_info( host, HOST_BASIC_INFO, ( host_info_t )&hi, &i_size );
915 if( ret != KERN_SUCCESS )
917 intf_ErrMsg( "error: couldn't get CPU information" );
918 return( i_capabilities );
921 slot_name( hi.cpu_type, hi.cpu_subtype, &psz_name, &psz_subname );
922 /* FIXME: need better way to detect newer proccessors.
923 * could do strncmp(a,b,5), but that's real ugly */
924 if( strcmp(psz_name, "ppc7400") || strcmp(psz_name, "ppc7450") )
926 i_capabilities |= CPU_CAPABILITY_ALTIVEC;
929 #elif defined( __i386__ )
930 unsigned int i_eax, i_ebx, i_ecx, i_edx;
933 # define cpuid( a ) \
934 asm volatile ( "cpuid" \
942 /* test for a 486 CPU */
943 asm volatile ( "pushfl\n\t"
945 "movl %%eax, %%ebx\n\t"
946 "xorl $0x200000, %%eax\n\t"
958 return( i_capabilities );
961 i_capabilities |= CPU_CAPABILITY_486;
963 /* the CPU supports the CPUID instruction - get its level */
968 return( i_capabilities );
971 /* FIXME: this isn't correct, since some 486s have cpuid */
972 i_capabilities |= CPU_CAPABILITY_586;
974 /* borrowed from mpeg2dec */
975 b_amd = ( i_ebx == 0x68747541 ) && ( i_ecx == 0x444d4163 )
976 && ( i_edx == 0x69746e65 );
978 /* test for the MMX flag */
981 if( ! (i_edx & 0x00800000) )
983 return( i_capabilities );
986 i_capabilities |= CPU_CAPABILITY_MMX;
988 if( i_edx & 0x02000000 )
990 i_capabilities |= CPU_CAPABILITY_MMXEXT;
993 /* test for additional capabilities */
996 if( i_eax < 0x80000001 )
998 return( i_capabilities );
1001 /* list these additional capabilities */
1002 cpuid( 0x80000001 );
1004 if( i_edx & 0x80000000 )
1006 i_capabilities |= CPU_CAPABILITY_3DNOW;
1009 if( b_amd && ( i_edx & 0x00400000 ) )
1011 i_capabilities |= CPU_CAPABILITY_MMXEXT;
1015 /* default behaviour */
1018 return( i_capabilities );