* and spawn threads.
*****************************************************************************
* Copyright (C) 1998, 1999, 2000 VideoLAN
- * $Id: main.c,v 1.85 2001/04/12 01:52:45 sam Exp $
+ * $Id: main.c,v 1.110 2001/08/05 15:32:46 gbazin Exp $
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
* Samuel Hocevar <sam@zoy.org>
#include <signal.h> /* SIGHUP, SIGINT, SIGKILL */
#include <stdio.h> /* sprintf() */
+#include <setjmp.h> /* longjmp, setjmp */
#ifdef HAVE_GETOPT_LONG
# ifdef HAVE_GETOPT_H
# include "GNUgetopt/getopt.h"
#endif
-#ifdef SYS_DARWIN1_3
+#ifdef SYS_DARWIN
# include <mach/mach.h> /* Altivec detection */
# include <mach/mach_error.h> /* some day the header files||compiler *
will define it for us */
# include <mach/bootstrap.h>
#endif
-#include <unistd.h>
+#ifndef WIN32
+# include <netinet/in.h> /* BSD: struct in_addr */
+#endif
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#elif defined( _MSC_VER ) && defined( _WIN32 )
+# include <io.h>
+#endif
+
#include <errno.h> /* ENOMEM */
#include <stdlib.h> /* getenv(), strtol(), */
#include <string.h> /* strerror() */
+#include <fcntl.h> /* open(), O_WRONLY */
+#include <sys/stat.h> /* S_IREAD */
#include "config.h"
#include "common.h"
# include "beos_specific.h"
#endif
-#ifdef SYS_DARWIN1_3
+#ifdef SYS_DARWIN
# include "darwin_specific.h"
#endif
#define OPT_NOAUDIO 150
#define OPT_STEREO 151
#define OPT_MONO 152
+#define OPT_SPDIF 153
#define OPT_NOVIDEO 160
#define OPT_DISPLAY 161
#define OPT_COLOR 164
#define OPT_FULLSCREEN 165
#define OPT_OVERLAY 166
+#define OPT_SMP 167
#define OPT_CHANNELS 170
#define OPT_SERVER 171
#define OPT_MOTION 181
#define OPT_IDCT 182
#define OPT_YUV 183
+#define OPT_DOWNMIX 184
+#define OPT_IMDCT 185
#define OPT_SYNCHRO 190
#define OPT_WARNING 191
#define OPT_VERSION 192
+#define OPT_STDOUT 193
/* Usage fashion */
#define USAGE 0
#define SHORT_HELP 1
#define LONG_HELP 2
+/* Needed for x86 CPU capabilities detection */
+#define cpuid( a ) \
+ asm volatile ( "cpuid" \
+ : "=a" ( i_eax ), \
+ "=b" ( i_ebx ), \
+ "=c" ( i_ecx ), \
+ "=d" ( i_edx ) \
+ : "a" ( a ) \
+ : "cc" );
+
/* Long options */
static const struct option longopts[] =
{
/* Interface options */
{ "intf", 1, 0, 'I' },
{ "warning", 1, 0, OPT_WARNING },
+ { "stdout", 1, 0, OPT_STDOUT },
/* Audio options */
{ "noaudio", 0, 0, OPT_NOAUDIO },
{ "aout", 1, 0, 'A' },
{ "stereo", 0, 0, OPT_STEREO },
{ "mono", 0, 0, OPT_MONO },
+ { "spdif", 0, 0, OPT_SPDIF },
+ { "downmix", 1, 0, OPT_DOWNMIX },
+ { "imdct", 1, 0, OPT_IMDCT },
/* Video options */
{ "novideo", 0, 0, OPT_NOVIDEO },
{ "yuv", 1, 0, OPT_YUV },
{ "fullscreen", 0, 0, OPT_FULLSCREEN },
{ "overlay", 0, 0, OPT_OVERLAY },
+ { "smp", 1, 0, OPT_SMP },
/* DVD options */
{ "dvdtitle", 1, 0, 't' },
{ "dvdchapter", 1, 0, 'T' },
+ { "dvdangle", 1, 0, 'u' },
{ "dvdaudio", 1, 0, 'a' },
{ "dvdchannel", 1, 0, 'c' },
{ "dvdsubtitle", 1, 0, 's' },
/* Input options */
{ "input", 1, 0, OPT_INPUT },
- { "channels", 0, 0, OPT_CHANNELS },
{ "server", 1, 0, OPT_SERVER },
{ "port", 1, 0, OPT_PORT },
- { "broadcast", 0, 0, OPT_BROADCAST },
+ { "broadcast", 1, 0, OPT_BROADCAST },
+ { "channels", 0, 0, OPT_CHANNELS },
/* Synchro options */
{ "synchro", 1, 0, OPT_SYNCHRO },
};
/* Short options */
-static const char *psz_shortopts = "hHvgt:T:a:s:c:I:A:V:";
+static const char *psz_shortopts = "hHvgt:T:u:a:s:c:I:A:V:";
/*****************************************************************************
- * Global variable program_data - this is the one and only, see main.h
+ * Global variable program_data - these are the only ones, see main.h and
+ * modules.h
*****************************************************************************/
-main_t *p_main;
+main_t *p_main;
+module_bank_t *p_module_bank;
+aout_bank_t *p_aout_bank;
+vout_bank_t *p_vout_bank;
/*****************************************************************************
* Local prototypes
static void InitSignalHandler ( void );
static void SimpleSignalHandler ( int i_signal );
static void FatalSignalHandler ( int i_signal );
-
+static void InstructionSignalHandler( int i_signal );
static int CPUCapabilities ( void );
+static int RedirectSTDOUT ( void );
+static void ShowConsole ( void );
+
+static jmp_buf env;
+static int i_illegal;
+
/*****************************************************************************
* main: parse command line, start interface and spawn threads
*****************************************************************************
*****************************************************************************/
int main( int i_argc, char *ppsz_argv[], char *ppsz_env[] )
{
- main_t main_data; /* root of all data - see main.h */
+ main_t main_data; /* root of all data - see main.h */
+ module_bank_t module_bank;
+ aout_bank_t aout_bank;
+ vout_bank_t vout_bank;
- p_main = &main_data; /* set up the global variable */
+ p_main = &main_data; /* set up the global variables */
+ p_module_bank = &module_bank;
+ p_aout_bank = &aout_bank;
+ p_vout_bank = &vout_bank;
/*
- * System specific initialization code
+ * Initialize threads system
*/
-#if defined( SYS_BEOS ) || defined( SYS_DARWIN1_3 )
- system_Create( &i_argc, ppsz_argv, ppsz_env );
-#endif
+ vlc_threads_init( );
- p_main->i_cpu_capabilities = CPUCapabilities();
-
/*
* Test if our code is likely to run on this CPU
*/
+ p_main->i_cpu_capabilities = CPUCapabilities();
+
#if defined( __pentium__ ) || defined( __pentiumpro__ )
if( ! TestCPU( CPU_CAPABILITY_586 ) )
{
}
#endif
-#ifdef HAVE_MMX
- if( ! TestCPU( CPU_CAPABILITY_MMX ) )
- {
- fprintf( stderr, "error: this program needs MMX extensions,\n"
- "please try a version without MMX support\n" );
- return( 1 );
- }
+ /*
+ * System specific initialization code
+ */
+#if defined( SYS_BEOS ) || defined( SYS_DARWIN )
+ system_Init( &i_argc, ppsz_argv, ppsz_env );
+#elif defined( WIN32 )
+ _fmode = _O_BINARY; /* sets the default file-translation mode on Win32 */
#endif
/*
/*
* Read configuration
*/
- if( GetConfiguration( &i_argc, ppsz_argv, ppsz_env ) ) /* parse cmd line */
+ if( GetConfiguration( &i_argc, ppsz_argv, ppsz_env ) ) /* parse cmd line */
{
intf_MsgDestroy();
return( errno );
}
+ /*
+ * Redirect the standard output if required by the user, and on Win32 we
+ * also open a console to display the debug messages.
+ */
+ RedirectSTDOUT();
+
/*
* Initialize playlist and get commandline files
*/
- p_main->p_playlist = intf_PlaylistCreate( );
+ p_main->p_playlist = intf_PlaylistCreate();
if( !p_main->p_playlist )
{
intf_ErrMsg( "playlist error: playlist initialization failed" );
GetFilenames( i_argc, ppsz_argv );
/*
- * Initialize module bank
+ * Initialize module, aout and vout banks
*/
- p_main->p_bank = module_CreateBank( );
- if( !p_main->p_bank )
- {
- intf_ErrMsg( "module error: module bank initialization failed" );
- intf_PlaylistDestroy( p_main->p_playlist );
- intf_MsgDestroy();
- return( errno );
- }
- module_InitBank( p_main->p_bank );
+ module_InitBank();
+ aout_InitBank();
+ vout_InitBank();
/*
* Initialize shared resources and libraries
*/
- if( p_main->b_channels && network_ChannelCreate() )
+ if( main_GetIntVariable( INPUT_NETWORK_CHANNEL_VAR,
+ INPUT_NETWORK_CHANNEL_DEFAULT ) &&
+ network_ChannelCreate() )
{
/* On error during Channels initialization, switch off channels */
intf_Msg( "Channels initialization failed : "
"Channel management is deactivated" );
- p_main->b_channels = 0;
+ main_PutIntVariable( INPUT_NETWORK_CHANNEL_VAR, 0 );
}
/*
- * Run interface
+ * Try to run the interface
*/
p_main->p_intf = intf_Create();
- if( !p_main->p_intf )
+ if( p_main->p_intf == NULL )
{
intf_ErrMsg( "intf error: interface initialization failed" );
- module_DestroyBank( p_main->p_bank );
- intf_PlaylistDestroy( p_main->p_playlist );
- intf_MsgDestroy();
- return( errno );
- }
-
- /*
- * Set signal handling policy for all threads
- */
- InitSignalHandler();
-
- /*
- * Open audio device and start aout thread
- */
- if( p_main->b_audio )
- {
- p_main->p_aout = aout_CreateThread( NULL );
- if( p_main->p_aout == NULL )
- {
- /* On error during audio initialization, switch off audio */
- intf_ErrMsg( "aout error: audio initialization failed,"
- " audio is deactivated" );
- p_main->b_audio = 0;
- }
}
-
- /*
- * Open video device and start vout thread
- */
- if( p_main->b_video )
+ else
{
- p_main->p_vout = vout_CreateThread( NULL );
- if( p_main->p_vout == NULL )
+ /*
+ * Set signal handling policy for all threads
+ */
+ InitSignalHandler();
+
+ /*
+ * This is the main loop
+ */
+ p_main->p_intf->pf_run( p_main->p_intf );
+
+ /*
+ * Finished, destroy the interface
+ */
+ intf_Destroy( p_main->p_intf );
+
+ /*
+ * Go back into channel 0 which is the network
+ */
+ if( main_GetIntVariable( INPUT_NETWORK_CHANNEL_VAR,
+ INPUT_NETWORK_CHANNEL_DEFAULT ) )
{
- /* On error during video initialization, switch off video */
- intf_ErrMsg( "vout error: video initialization failed,"
- " video is deactivated" );
- p_main->b_video = 0;
+ network_ChannelJoin( COMMON_CHANNEL );
}
}
- /* Flush messages before entering the main loop */
- intf_FlushMsg();
-
- /*
- * This is the main loop
- */
- p_main->p_intf->pf_run( p_main->p_intf );
-
- intf_Destroy( p_main->p_intf );
-
- /*
- * Close video device
- */
- if( p_main->b_video )
- {
- vout_DestroyThread( p_main->p_vout, NULL );
- }
-
- /*
- * Close audio device
- */
- if( p_main->b_audio )
- {
- aout_DestroyThread( p_main->p_aout, NULL );
- }
-
- /*
- * Go back into channel 0 which is the network
- */
- if( p_main->b_channels )
- {
- network_ChannelJoin( COMMON_CHANNEL );
- }
-
/*
- * Free module bank
+ * Free module, aout and vout banks
*/
- module_DestroyBank( p_main->p_bank );
+ vout_EndBank();
+ aout_EndBank();
+ module_EndBank();
/*
* Free playlist
/*
* System specific cleaning code
*/
-#if defined( SYS_BEOS ) || defined( SYS_DARWIN1_3 )
- system_Destroy();
+#if defined( SYS_BEOS ) || defined( SYS_DARWIN )
+ system_End();
#endif
+
/*
* Terminate messages interface and program
*/
intf_Msg( "intf: program terminated" );
intf_MsgDestroy();
- return( 0 );
+ /*
+ * Stop threads system
+ */
+ vlc_threads_end( );
+
+ return 0;
}
/*****************************************************************************
p_main->b_audio = 1;
p_main->b_video = 1;
- p_main->b_channels = 0;
- p_main->i_warning_level = 4;
+ p_main->i_warning_level = 0;
+
+ p_main->p_channel = NULL;
/* Get the executable name (similar to the basename command) */
p_main->psz_arg0 = p_tmp = ppsz_argv[ 0 ];
}
}
-#ifdef SYS_DARWIN1_3
+#ifdef SYS_DARWIN
/* When vlc.app is run by double clicking in Mac OS X, the 2nd arg
* is the PSN - process serial number (a unique PID-ish thingie)
* still ok for real Darwin & when run from command line */
- if ( strncmp( ppsz_argv[ 1 ] , "-psn" , 4) == 0 )
- /* for example -psn_0_9306113 */
+ if ( (*pi_argc > 1) && (strncmp( ppsz_argv[ 1 ] , "-psn" , 4 ) == 0) )
+ /* for example -psn_0_9306113 */
{
/* GDMF!... I can't do this or else the MacOSX window server will
* not pick up the PSN and not register the app and we crash...
{
/* General/common options */
case 'h': /* -h, --help */
+ ShowConsole();
+ RedirectSTDOUT();
Usage( SHORT_HELP );
+#ifdef WIN32 /* Pause the console because it's destroyed when we exit */
+ if( strcmp( "", main_GetPszVariable( INTF_STDOUT_VAR,
+ INTF_STDOUT_DEFAULT ) ) == 0 )
+ {
+ /* No stdout redirection has been asked for */
+ intf_MsgImm( "\nPress the RETURN key to continue..." );
+ getchar();
+ }
+#endif
return( -1 );
break;
case 'H': /* -H, --longhelp */
+ ShowConsole();
+ RedirectSTDOUT();
Usage( LONG_HELP );
+#ifdef WIN32 /* Pause the console because it's destroyed when we exit */
+ if( strcmp( "", main_GetPszVariable( INTF_STDOUT_VAR,
+ INTF_STDOUT_DEFAULT ) ) == 0 )
+ {
+ /* No stdout redirection has been asked for */
+ intf_MsgImm( "\nPress the RETURN key to continue..." );
+ getchar();
+ }
+#endif
return( -1 );
break;
case OPT_VERSION: /* --version */
+ ShowConsole();
+ RedirectSTDOUT();
Version();
+#ifdef WIN32 /* Pause the console because it's destroyed when we exit */
+ if( strcmp( "", main_GetPszVariable( INTF_STDOUT_VAR,
+ INTF_STDOUT_DEFAULT ) ) == 0 )
+ {
+ /* No stdout redirection has been asked for */
+ intf_MsgImm( "\nPress the RETURN key to continue..." );
+ getchar();
+ }
+#endif
return( -1 );
break;
case 'v': /* -v, --verbose */
- p_main->i_warning_level--;
+ p_main->i_warning_level++;
break;
/* Interface warning messages level */
p_main->i_warning_level = atoi(optarg);
break;
+ case OPT_STDOUT: /* --stdout */
+ main_PutPszVariable( INTF_STDOUT_VAR, optarg );
+ break;
+
/* Audio options */
case OPT_NOAUDIO: /* --noaudio */
p_main->b_audio = 0;
case OPT_MONO: /* --mono */
main_PutIntVariable( AOUT_STEREO_VAR, 0 );
break;
+ case OPT_SPDIF: /* --spdif */
+ main_PutIntVariable( AOUT_SPDIF_VAR, 1 );
+ break;
+ case OPT_DOWNMIX: /* --downmix */
+ main_PutPszVariable( DOWNMIX_METHOD_VAR, optarg );
+ break;
+ case OPT_IMDCT: /* --imdct */
+ main_PutPszVariable( IMDCT_METHOD_VAR, optarg );
+ break;
/* Video options */
case OPT_NOVIDEO: /* --novideo */
case OPT_YUV: /* --yuv */
main_PutPszVariable( YUV_METHOD_VAR, optarg );
break;
+ case OPT_SMP: /* --smp */
+ main_PutIntVariable( VDEC_SMP_VAR, atoi(optarg) );
+ break;
/* DVD options */
case 't':
case 'T':
main_PutIntVariable( INPUT_CHAPTER_VAR, atoi(optarg) );
break;
+ case 'u':
+ main_PutIntVariable( INPUT_ANGLE_VAR, atoi(optarg) );
+ break;
case 'a':
if ( ! strcmp(optarg, "ac3") )
main_PutIntVariable( INPUT_AUDIO_VAR, REQUESTED_AC3 );
main_PutPszVariable( INPUT_METHOD_VAR, optarg );
break;
case OPT_CHANNELS: /* --channels */
- p_main->b_channels = 1;
+ main_PutIntVariable( INPUT_NETWORK_CHANNEL_VAR, 1 );
break;
case OPT_SERVER: /* --server */
main_PutPszVariable( INPUT_SERVER_VAR, optarg );
break;
case OPT_BROADCAST: /* --broadcast */
main_PutIntVariable( INPUT_BROADCAST_VAR, 1 );
+ main_PutPszVariable( INPUT_BCAST_ADDR_VAR, optarg );
break;
/* Synchro options */
/* Internal error: unknown option */
case '?':
default:
+ ShowConsole();
+ RedirectSTDOUT();
intf_ErrMsg( "intf error: unknown option `%s'",
ppsz_argv[optind - 1] );
Usage( USAGE );
+#ifdef WIN32 /* Pause the console because it's destroyed when we exit */
+ if( strcmp( "", main_GetPszVariable( INTF_STDOUT_VAR,
+ INTF_STDOUT_DEFAULT ) ) == 0 )
+ {
+ /* No stdout redirection has been asked for */
+ intf_MsgImm( "\nPress the RETURN key to continue..." );
+ getchar();
+ }
+#endif
return( EINVAL );
break;
}
intf_MsgImm( "\nOptions:"
"\n -I, --intf <module> \tinterface method"
"\n -v, --verbose \tverbose mode (cumulative)"
+ "\n --stdout <filename> \tredirect console stdout"
"\n"
"\n --noaudio \tdisable audio"
"\n -A, --aout <module> \taudio output method"
"\n --stereo, --mono \tstereo/mono audio"
+ "\n --spdif \tAC3 pass-through mode"
+ "\n --downmix <module> \tAC3 downmix method"
+ "\n --imdct <module> \tAC3 IMDCT method"
"\n"
"\n --novideo \tdisable video"
"\n -V, --vout <module> \tvideo output method"
"\n --idct <module> \tIDCT method"
"\n --yuv <module> \tYUV method"
"\n --synchro <type> \tforce synchro algorithm"
+ "\n --smp <number of threads> \tuse several processors"
"\n"
"\n -t, --dvdtitle <num> \tchoose DVD title"
"\n -T, --dvdchapter <num> \tchoose DVD chapter"
+ "\n -u, --dvdangle <num> \tchoose DVD angle"
"\n -a, --dvdaudio <type> \tchoose DVD audio type"
"\n -c, --dvdchannel <channel> \tchoose DVD audio channel"
"\n -s, --dvdsubtitle <channel> \tchoose DVD subtitle channel"
"\n"
"\n --input \tinput method"
- "\n --channels \tenable channels"
+ "\n --channels \tenable channels"
"\n --server <host> \tvideo server address"
"\n --port <port> \tvideo server port"
"\n --broadcast \tlisten to a broadcast"
/* Interface parameters */
intf_MsgImm( "\nInterface parameters:"
- "\n " INTF_METHOD_VAR "=<method name> \tinterface method"
- "\n " INTF_INIT_SCRIPT_VAR "=<filename> \tinitialization script"
- "\n " INTF_CHANNELS_VAR "=<filename> \tchannels list" );
+ "\n " INTF_METHOD_VAR "=<method name> \tinterface method"
+ "\n " INTF_INIT_SCRIPT_VAR "=<filename> \tinitialization script"
+ "\n " INTF_CHANNELS_VAR "=<filename> \tchannels list"
+ "\n " INTF_STDOUT_VAR "=<filename> \tredirect console stdout" );
/* Audio parameters */
intf_MsgImm( "\nAudio parameters:"
"\n " AOUT_METHOD_VAR "=<method name> \taudio method"
"\n " AOUT_DSP_VAR "=<filename> \tdsp device path"
"\n " AOUT_STEREO_VAR "={1|0} \tstereo or mono output"
+ "\n " AOUT_SPDIF_VAR "={1|0} \tAC3 pass-through mode"
+ "\n " DOWNMIX_METHOD_VAR "=<method name> \tAC3 downmix method"
+ "\n " IMDCT_METHOD_VAR "=<method name> \tAC3 IMDCT method"
"\n " AOUT_RATE_VAR "=<rate> \toutput rate" );
/* Video parameters */
"\n " MOTION_METHOD_VAR "=<method name> \tmotion compensation method"
"\n " IDCT_METHOD_VAR "=<method name> \tIDCT method"
"\n " YUV_METHOD_VAR "=<method name> \tYUV method"
- "\n " VPAR_SYNCHRO_VAR "={I|I+|IP|IP+|IPB} \tsynchro algorithm" );
+ "\n " VPAR_SYNCHRO_VAR "={I|I+|IP|IP+|IPB} \tsynchro algorithm"
+ "\n " VDEC_SMP_VAR "=<number of threads> \tuse several processors" );
/* DVD parameters */
intf_MsgImm( "\nDVD parameters:"
"\n " INPUT_DVD_DEVICE_VAR "=<device> \tDVD device"
"\n " INPUT_TITLE_VAR "=<title> \ttitle number"
"\n " INPUT_CHAPTER_VAR "=<chapter> \tchapter number"
+ "\n " INPUT_ANGLE_VAR "=<angle> \tangle number"
"\n " INPUT_AUDIO_VAR "={ac3|lpcm|mpeg|off} \taudio type"
"\n " INPUT_CHANNEL_VAR "=[0-15] \taudio channel"
"\n " INPUT_SUBTITLE_VAR "=[0-31] \tsubtitle channel" );
/* Input parameters */
intf_MsgImm( "\nInput parameters:"
- "\n " INPUT_SERVER_VAR "=<hostname> \tvideo server"
- "\n " INPUT_PORT_VAR "=<port> \tvideo server port"
- "\n " INPUT_IFACE_VAR "=<interface> \tnetwork interface"
- "\n " INPUT_BROADCAST_VAR "={1|0} \tbroadcast mode"
- "\n " INPUT_CHANNEL_SERVER_VAR "=<hostname> \tchannel server"
- "\n " INPUT_CHANNEL_PORT_VAR "=<port> \tchannel server port" );
+ "\n " INPUT_SERVER_VAR "=<hostname> \tvideo server"
+ "\n " INPUT_PORT_VAR "=<port> \tvideo server port"
+ "\n " INPUT_IFACE_VAR "=<interface> \tnetwork interface"
+ "\n " INPUT_BCAST_ADDR_VAR "=<addr> \tbroadcast mode"
+ "\n " INPUT_CHANNEL_SERVER_VAR "=<hostname> \tchannel server"
+ "\n " INPUT_CHANNEL_PORT_VAR "=<port> \tchannel server port" );
}
static void InitSignalHandler( void )
{
/* Termination signals */
- signal( SIGHUP, FatalSignalHandler );
+#ifndef WIN32
signal( SIGINT, FatalSignalHandler );
+ signal( SIGHUP, FatalSignalHandler );
signal( SIGQUIT, FatalSignalHandler );
/* Other signals */
signal( SIGALRM, SimpleSignalHandler );
signal( SIGPIPE, SimpleSignalHandler );
+#endif
}
/* Once a signal has been trapped, the termination sequence will be
* armed and following signals will be ignored to avoid sending messages
* to an interface having been destroyed */
- signal( SIGHUP, SIG_IGN );
+#ifndef WIN32
signal( SIGINT, SIG_IGN );
+ signal( SIGHUP, SIG_IGN );
signal( SIGQUIT, SIG_IGN );
+#endif
/* Acknowledge the signal received */
intf_ErrMsgImm( "intf error: signal %d received, exiting", i_signal );
p_main->p_intf->b_die = 1;
}
+/*****************************************************************************
+ * InstructionSignalHandler: system signal handler
+ *****************************************************************************
+ * This function is called when a illegal instruction signal is received by
+ * the program.
+ * We use this function to test OS and CPU_Capabilities
+ *****************************************************************************/
+static void InstructionSignalHandler( int i_signal )
+{
+ /* Once a signal has been trapped, the termination sequence will be
+ * armed and following signals will be ignored to avoid sending messages
+ * to an interface having been destroyed */
+
+ /* Acknowledge the signal received */
+ fprintf( stderr, "illegal instruction : optimization disabled\n" );
+
+ i_illegal = 1;
+
+#ifdef HAVE_SIGRELSE
+ sigrelse( i_signal );
+#endif
+ longjmp( env, 1 );
+}
+
/*****************************************************************************
* CPUCapabilities: list the processors MMX support and other capabilities
*****************************************************************************
*****************************************************************************/
static int CPUCapabilities( void )
{
- int i_capabilities = CPU_CAPABILITY_NONE;
+ volatile int i_capabilities = CPU_CAPABILITY_NONE;
#if defined( SYS_BEOS )
i_capabilities |= CPU_CAPABILITY_486
| CPU_CAPABILITY_586
| CPU_CAPABILITY_MMX;
-#elif defined( SYS_DARWIN1_3 )
+ return( i_capabilities );
+#elif defined( SYS_DARWIN )
struct host_basic_info hi;
kern_return_t ret;
host_name_port_t host;
i_capabilities |= CPU_CAPABILITY_ALTIVEC;
}
-#elif defined( __i386__ )
- unsigned int i_eax, i_ebx, i_ecx, i_edx;
- boolean_t b_amd;
+ return( i_capabilities );
-# define cpuid( a ) \
- asm volatile ( "cpuid" \
- : "=a" ( i_eax ), \
- "=b" ( i_ebx ), \
- "=c" ( i_ecx ), \
- "=d" ( i_edx ) \
- : "a" ( a ) \
- : "cc" ); \
+#elif defined( __i386__ )
+ volatile unsigned int i_eax, i_ebx, i_ecx, i_edx;
+ volatile boolean_t b_amd;
+ signal( SIGILL, InstructionSignalHandler );
+
/* test for a 486 CPU */
asm volatile ( "pushfl\n\t"
"popl %%eax\n\t"
if( i_eax == i_ebx )
{
+ signal( SIGILL, NULL );
return( i_capabilities );
}
if( !i_eax )
{
+ signal( SIGILL, NULL );
return( i_capabilities );
}
if( ! (i_edx & 0x00800000) )
{
+ signal( SIGILL, NULL );
return( i_capabilities );
}
if( i_edx & 0x02000000 )
{
i_capabilities |= CPU_CAPABILITY_MMXEXT;
+
+ /* We test if OS support the SSE instructions */
+ i_illegal = 0;
+ if( setjmp( env ) == 0 )
+ {
+ /* Test a SSE instruction */
+ __asm__ __volatile__ ( "xorps %%xmm0,%%xmm0\n" : : );
+ }
+
+ if( i_illegal == 0 )
+ {
+ i_capabilities |= CPU_CAPABILITY_SSE;
+ }
}
/* test for additional capabilities */
if( i_eax < 0x80000001 )
{
+ signal( SIGILL, NULL );
return( i_capabilities );
}
if( i_edx & 0x80000000 )
{
- i_capabilities |= CPU_CAPABILITY_3DNOW;
+ i_illegal = 0;
+ if( setjmp( env ) == 0 )
+ {
+ /* Test a 3D Now! instruction */
+ __asm__ __volatile__ ( "pfadd %%mm0,%%mm0\n" "femms\n" : : );
+ }
+
+ if( i_illegal == 0 )
+ {
+ i_capabilities |= CPU_CAPABILITY_3DNOW;
+ }
}
if( b_amd && ( i_edx & 0x00400000 ) )
i_capabilities |= CPU_CAPABILITY_MMXEXT;
}
+ signal( SIGILL, NULL );
+ return( i_capabilities );
+
#else
/* default behaviour */
+ return( i_capabilities );
#endif
- return( i_capabilities );
+}
+
+/*****************************************************************************
+ * RedirectSTDOUT: redirect stdout and stderr to a file
+ *****************************************************************************
+ * This function will redirect stdout and stderr to a file if the user has
+ * specified so.
+ *****************************************************************************/
+static int RedirectSTDOUT( void )
+{
+ int i_stdout_filedesc;
+ char *psz_stdout_filename;
+
+ psz_stdout_filename = main_GetPszVariable( INTF_STDOUT_VAR,
+ INTF_STDOUT_DEFAULT );
+ if( strcmp( "", psz_stdout_filename ) != 0 )
+ {
+ ShowConsole();
+ i_stdout_filedesc = open( psz_stdout_filename,
+ O_CREAT | O_TRUNC | O_RDWR,
+ S_IREAD | S_IWRITE );
+ if( dup2( i_stdout_filedesc, fileno(stdout) ) == -1 )
+ intf_ErrMsg("Unable to redirect stdout!\n");
+ if( dup2( i_stdout_filedesc, fileno(stderr) ) == -1 )
+ intf_ErrMsg("Unable to redirect stderr!\n");
+ close( i_stdout_filedesc );
+ }
+ else
+ {
+ /* No stdout redirection has been asked so open a console */
+ if( p_main->i_warning_level )
+ {
+ ShowConsole();
+ }
+
+ }
+
+ return 0;
+}
+
+/*****************************************************************************
+ * ShowConsole: On Win32, create an output console for debug messages
+ *****************************************************************************
+ * This function is usefull only on Win32.
+ *****************************************************************************/
+static void ShowConsole( void )
+{
+#ifdef WIN32 /* */
+ AllocConsole();
+ freopen( "CONOUT$", "w", stdout );
+ freopen( "CONOUT$", "w", stderr );
+ freopen( "CONIN$", "r", stdin );
+#endif
+ return;
}
projects / vlc / blobdiff