git.sesse.net Git - vlc/blob - include/vlc_common.h

   1 /*****************************************************************************
   2  * common.h: common definitions
   3  * Collection of useful common types and macros definitions
   4  *****************************************************************************
   5  * Copyright (C) 1998, 1999, 2000 VideoLAN
   6  * $Id: vlc_common.h,v 1.88 2003/11/21 15:32:08 fenrir Exp $
   7  *
   8  * Authors: Samuel Hocevar <sam@via.ecp.fr>
   9  *          Vincent Seguin <seguin@via.ecp.fr>
  10  *          Gildas Bazin <gbazin@netcourrier.com>
  11  *
  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.
  16  *
  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.
  21  *
  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  *****************************************************************************/
  26
  27 /**
  28  * \file
  29  * This file is a collection of common definitions and types
  30  */
  31
  32 /*****************************************************************************
  33  * Required vlc headers
  34  *****************************************************************************/
  35 #if defined( __BORLANDC__ )
  36 #   undef PACKAGE
  37 #endif
  38
  39 #include "config.h"
  40
  41 #if defined( __BORLANDC__ )
  42 #   undef HAVE_VARIADIC_MACROS
  43 #   undef HAVE_STDINT_H
  44 #   undef HAVE_INTTYPES_H
  45 #   undef off_t
  46 #endif
  47
  48 #include "vlc_config.h"
  49 #include "modules_inner.h"
  50
  51 /*****************************************************************************
  52  * Required system headers
  53  *****************************************************************************/
  54 #include <stdlib.h>
  55 #include <stdarg.h>
  56
  57 #ifdef HAVE_STRING_H
  58 #   include <string.h>                                         /* strerror() */
  59 #endif
  60
  61 #ifdef HAVE_SYS_TYPES_H
  62 #   include <sys/types.h>
  63 #endif
  64
  65 /*****************************************************************************
  66  * Basic types definitions
  67  *****************************************************************************/
  68 #if defined( HAVE_STDINT_H )
  69 #   include <stdint.h>
  70 #elif defined( HAVE_INTTYPES_H )
  71 #   include <inttypes.h>
  72 #elif defined( SYS_CYGWIN )
  73 #   include <sys/types.h>
  74     /* Cygwin only defines half of these... */
  75     typedef u_int8_t            uint8_t;
  76     typedef u_int16_t           uint16_t;
  77     typedef u_int32_t           uint32_t;
  78     typedef u_int64_t           uint64_t;
  79 #else
  80     /* Fallback types (very x86-centric, sorry) */
  81     typedef unsigned char       uint8_t;
  82     typedef signed char         int8_t;
  83     typedef unsigned short      uint16_t;
  84     typedef signed short        int16_t;
  85     typedef unsigned int        uint32_t;
  86     typedef signed int          int32_t;
  87 #   if defined( _MSC_VER ) \
  88       || defined( UNDER_CE ) \
  89       || ( defined( WIN32 ) && !defined( __MINGW32__ ) )
  90     typedef unsigned __int64    uint64_t;
  91     typedef signed __int64      int64_t;
  92 #   else
  93     typedef unsigned long long  uint64_t;
  94     typedef signed long long    int64_t;
  95 #   endif
  96 #endif
  97
  98 typedef uint8_t                 byte_t;
  99
 100 /* ptrdiff_t definition */
 101 #ifdef HAVE_STDDEF_H
 102 #   include <stddef.h>
 103 #else
 104 #   include <malloc.h>
 105 #   ifndef _PTRDIFF_T
 106 #       define _PTRDIFF_T
 107 /* Not portable in a 64-bit environment. */
 108 typedef int                 ptrdiff_t;
 109 #   endif
 110 #endif
 111
 112 #if defined( WIN32 )
 113 #   include <malloc.h>
 114 #define PATH_MAX MAX_PATH
 115 #endif
 116
 117 #if (defined( WIN32 ) || defined( UNDER_CE )) && !defined( _SSIZE_T_ )
 118 typedef int                 ssize_t;
 119 #endif
 120
 121 /* Counter for statistics and profiling */
 122 typedef unsigned long       count_t;
 123
 124 /* DCT elements types */
 125 typedef int16_t             dctelem_t;
 126
 127 /* Video buffer types */
 128 typedef uint8_t             yuv_data_t;
 129
 130 /* Audio volume */
 131 typedef uint16_t            audio_volume_t;
 132
 133 #ifndef HAVE_SOCKLEN_T
 134 typedef int                 socklen_t;
 135 #endif
 136
 137 /*****************************************************************************
 138  * mtime_t: high precision date or time interval
 139  *****************************************************************************
 140  * Store a high precision date or time interval. The maximum precision is the
 141  * microsecond, and a 64 bits integer is used to avoid overflows (maximum
 142  * time interval is then 292271 years, which should be long enough for any
 143  * video). Dates are stored as microseconds since a common date (usually the
 144  * epoch). Note that date and time intervals can be manipulated using regular
 145  * arithmetic operators, and that no special functions are required.
 146  *****************************************************************************/
 147 typedef int64_t mtime_t;
 148
 149 /*****************************************************************************
 150  * The vlc_fourcc_t type.
 151  *****************************************************************************
 152  * See http://www.webartz.com/fourcc/ for a very detailed list.
 153  *****************************************************************************/
 154 typedef uint32_t vlc_fourcc_t;
 155
 156 #ifdef WORDS_BIGENDIAN
 157 #   define VLC_FOURCC( a, b, c, d ) \
 158         ( ((uint32_t)d) | ( ((uint32_t)c) << 8 ) \
 159            | ( ((uint32_t)b) << 16 ) | ( ((uint32_t)a) << 24 ) )
 160 #   define VLC_TWOCC( a, b ) \
 161         ( (uint16_t)(b) | ( (uint16_t)(a) << 8 ) )
 162
 163 #else
 164 #   define VLC_FOURCC( a, b, c, d ) \
 165         ( ((uint32_t)a) | ( ((uint32_t)b) << 8 ) \
 166            | ( ((uint32_t)c) << 16 ) | ( ((uint32_t)d) << 24 ) )
 167 #   define VLC_TWOCC( a, b ) \
 168         ( (uint16_t)(a) | ( (uint16_t)(b) << 8 ) )
 169
 170 #endif
 171
 172 /*****************************************************************************
 173  * Classes declaration
 174  *****************************************************************************/
 175
 176 /* Internal types */
 177 typedef struct libvlc_t libvlc_t;
 178 typedef struct vlc_t vlc_t;
 179 typedef struct variable_t variable_t;
 180
 181 /* Messages */
 182 typedef struct msg_bank_t msg_bank_t;
 183 typedef struct msg_subscription_t msg_subscription_t;
 184
 185 /* Playlist */
 186 typedef struct playlist_t playlist_t;
 187 typedef struct playlist_item_t playlist_item_t;
 188 typedef struct playlist_group_t playlist_group_t;
 189
 190 /* Modules */
 191 typedef struct module_bank_t module_bank_t;
 192 typedef struct module_t module_t;
 193 typedef struct module_config_t module_config_t;
 194 typedef struct module_symbols_t module_symbols_t;
 195
 196 /* Interface */
 197 typedef struct intf_thread_t intf_thread_t;
 198 typedef struct intf_sys_t intf_sys_t;
 199 typedef struct intf_console_t intf_console_t;
 200 typedef struct intf_msg_t intf_msg_t;
 201 typedef struct intf_channel_t intf_channel_t;
 202
 203 /* Input */
 204 typedef struct input_thread_t input_thread_t;
 205 typedef struct input_thread_sys_t input_thread_sys_t;
 206 typedef struct input_area_t input_area_t;
 207 typedef struct input_buffers_t input_buffers_t;
 208 typedef struct input_socket_t input_socket_t;
 209 typedef struct input_info_t input_info_t;
 210 typedef struct input_info_category_t input_info_category_t;
 211 typedef struct access_sys_t access_sys_t;
 212 typedef struct demux_sys_t demux_sys_t;
 213 typedef struct es_descriptor_t es_descriptor_t;
 214 typedef struct es_sys_t es_sys_t;
 215 typedef struct pgrm_descriptor_t pgrm_descriptor_t;
 216 typedef struct pgrm_sys_t pgrm_sys_t;
 217 typedef struct stream_descriptor_t stream_descriptor_t;
 218 typedef struct stream_sys_t stream_sys_t;
 219
 220 /* Format */
 221 typedef struct audio_format_t audio_format_t;
 222 typedef struct video_format_t video_format_t;
 223 typedef struct subs_format_t subs_format_t;
 224 typedef struct es_format_t  es_format_t;
 225
 226 /* NInput */
 227 typedef struct stream_t stream_t;
 228 typedef struct es_out_t     es_out_t;
 229 typedef struct es_out_id_t  es_out_id_t;
 230 typedef struct es_out_sys_t es_out_sys_t;
 231
 232
 233 /* Audio */
 234 typedef struct aout_instance_t aout_instance_t;
 235 typedef struct aout_sys_t aout_sys_t;
 236 typedef struct aout_fifo_t aout_fifo_t;
 237 typedef struct aout_input_t aout_input_t;
 238 typedef struct aout_buffer_t aout_buffer_t;
 239 typedef audio_format_t audio_sample_format_t;
 240 typedef struct audio_date_t audio_date_t;
 241 typedef struct aout_filter_t aout_filter_t;
 242
 243 /* Video */
 244 typedef struct vout_thread_t vout_thread_t;
 245 typedef struct vout_sys_t vout_sys_t;
 246 typedef struct chroma_sys_t chroma_sys_t;
 247 typedef video_format_t video_frame_format_t;
 248 typedef struct picture_t picture_t;
 249 typedef struct picture_sys_t picture_sys_t;
 250 typedef struct picture_heap_t picture_heap_t;
 251 typedef struct subpicture_t subpicture_t;
 252 typedef struct subpicture_sys_t subpicture_sys_t;
 253 typedef struct vout_synchro_t vout_synchro_t;
 254 typedef struct text_renderer_sys_t text_renderer_sys_t;
 255 typedef struct text_style_t text_style_t;
 256
 257 /* Stream output */
 258 typedef struct sout_instance_t sout_instance_t;
 259 typedef struct sout_fifo_t sout_fifo_t;
 260 typedef struct sout_input_t sout_input_t;
 261 typedef struct sout_packetizer_input_t sout_packetizer_input_t;
 262 typedef struct sout_buffer_t sout_buffer_t;
 263 typedef struct sout_access_out_t sout_access_out_t;
 264 typedef struct sout_mux_t sout_mux_t;
 265 typedef struct sout_stream_t    sout_stream_t;
 266 typedef struct sout_cfg_t       sout_cfg_t;
 267 /*typedef struct sap_session_t    sap_session_t;
 268 typedef struct slp_session_t    slp_session_t;*/
 269
 270 /* Decoders */
 271 typedef struct decoder_fifo_t decoder_fifo_t;
 272 typedef struct decoder_t      decoder_t;
 273 typedef struct decoder_sys_t  decoder_sys_t;
 274
 275 /* Encoders */
 276 typedef struct encoder_t      encoder_t;
 277 typedef struct encoder_sys_t  encoder_sys_t;
 278
 279 /* Misc */
 280 typedef struct data_packet_t data_packet_t;
 281 typedef struct data_buffer_t data_buffer_t;
 282 typedef struct stream_position_t stream_position_t;
 283 typedef struct stream_ctrl_t stream_ctrl_t;
 284 typedef struct pes_packet_t pes_packet_t;
 285 typedef struct bit_stream_t bit_stream_t;
 286 typedef struct network_socket_t network_socket_t;
 287 typedef struct iso639_lang_t iso639_lang_t;
 288
 289 /* block */
 290 typedef struct block_t      block_t;
 291 typedef struct block_fifo_t block_fifo_t;
 292
 293 /*****************************************************************************
 294  * Variable callbacks
 295  *****************************************************************************/
 296 typedef int ( * vlc_callback_t ) ( vlc_object_t *,      /* variable's object */
 297                                    char const *,            /* variable name */
 298                                    vlc_value_t,                 /* old value */
 299                                    vlc_value_t,                 /* new value */
 300                                    void * );                /* callback data */
 301
 302 /*****************************************************************************
 303  * Plug-in stuff
 304  *****************************************************************************/
 305 #ifndef __PLUGIN__
 306 #   define VLC_EXPORT( type, name, args ) type name args
 307 #else
 308 #   define VLC_EXPORT( type, name, args ) struct _u_n_u_s_e_d_
 309     extern module_symbols_t* p_symbols;
 310 #endif
 311
 312 /*****************************************************************************
 313  * OS-specific headers and thread types
 314  *****************************************************************************/
 315 #if defined( WIN32 ) || defined( UNDER_CE )
 316 #   define WIN32_LEAN_AND_MEAN
 317 #   include <windows.h>
 318 #   define IS_WINNT ( GetVersion() < 0x80000000 )
 319 #endif
 320
 321 #include "vlc_threads.h"
 322
 323 /*****************************************************************************
 324  * Common structure members
 325  *****************************************************************************/
 326
 327 /* VLC_COMMON_MEMBERS : members common to all basic vlc objects */
 328 #define VLC_COMMON_MEMBERS                                                  \
 329 /** \name VLC_COMMON_MEMBERS                                                \
 330  * these members are common for all vlc objects                             \
 331  */                                                                         \
 332 /**@{*/                                                                     \
 333     int   i_object_id;                                                      \
 334     int   i_object_type;                                                    \
 335     char *psz_object_type;                                                  \
 336     char *psz_object_name;                                                  \
 337                                                                             \
 338     /* Thread properties, if any */                                         \
 339     vlc_bool_t   b_thread;                                                  \
 340     vlc_thread_t thread_id;                                                 \
 341                                                                             \
 342     /* Object access lock */                                                \
 343     vlc_mutex_t  object_lock;                                               \
 344     vlc_cond_t   object_wait;                                               \
 345                                                                             \
 346     /* Object properties */                                                 \
 347     volatile vlc_bool_t b_error;                  /**< set by the object */ \
 348     volatile vlc_bool_t b_die;                   /**< set by the outside */ \
 349     volatile vlc_bool_t b_dead;                   /**< set by the object */ \
 350     volatile vlc_bool_t b_attached;               /**< set by the object */ \
 351                                                                             \
 352     /* Object variables */                                                  \
 353     vlc_mutex_t     var_lock;                                               \
 354     int             i_vars;                                                 \
 355     variable_t *    p_vars;                                                 \
 356                                                                             \
 357     /* Stuff related to the libvlc structure */                             \
 358     libvlc_t *      p_libvlc;                      /**< root of all evil */ \
 359     vlc_t *         p_vlc;                   /**< (root of all evil) - 1 */ \
 360                                                                             \
 361     volatile int    i_refcount;                         /**< usage count */ \
 362     vlc_object_t *  p_parent;                            /**< our parent */ \
 363     vlc_object_t ** pp_children;                       /**< our children */ \
 364     volatile int    i_children;                                             \
 365                                                                             \
 366     /* Private data */                                                      \
 367     void *          p_private;                                              \
 368                                                                             \
 369     /** Just a reminder so that people don't cast garbage */                \
 370     int be_sure_to_add_VLC_COMMON_MEMBERS_to_struct;                        \
 371 /**@}*/                                                                     \
 372
 373 /* VLC_OBJECT: attempt at doing a clever cast */
 374 #define VLC_OBJECT( x ) \
 375     ((vlc_object_t *)(x))+0*(x)->be_sure_to_add_VLC_COMMON_MEMBERS_to_struct
 376
 377 /*****************************************************************************
 378  * Macros and inline functions
 379  *****************************************************************************/
 380 #ifdef NTOHL_IN_SYS_PARAM_H
 381 #   include <sys/param.h>
 382
 383 #elif !defined(WIN32) && !defined( UNDER_CE )
 384 #   include <netinet/in.h>
 385
 386 #endif /* NTOHL_IN_SYS_PARAM_H || WIN32 */
 387
 388 /* CEIL: division with round to nearest greater integer */
 389 #define CEIL(n, d)  ( ((n) / (d)) + ( ((n) % (d)) ? 1 : 0) )
 390
 391 /* PAD: PAD(n, d) = CEIL(n ,d) * d */
 392 #define PAD(n, d)   ( ((n) % (d)) ? ((((n) / (d)) + 1) * (d)) : (n) )
 393
 394 /* __MAX and __MIN: self explanatory */
 395 #ifndef __MAX
 396 #   define __MAX(a, b)   ( ((a) > (b)) ? (a) : (b) )
 397 #endif
 398 #ifndef __MIN
 399 #   define __MIN(a, b)   ( ((a) < (b)) ? (a) : (b) )
 400 #endif
 401
 402 /* Dynamic array handling: realloc array, move data, increment position */
 403 #define INSERT_ELEM( p_ar, i_oldsize, i_pos, elem )                           \
 404     do                                                                        \
 405     {                                                                         \
 406         if( i_oldsize )                                                       \
 407         {                                                                     \
 408             (p_ar) = realloc( p_ar, ((i_oldsize) + 1) * sizeof( *(p_ar) ) );  \
 409         }                                                                     \
 410         else                                                                  \
 411         {                                                                     \
 412             (p_ar) = malloc( ((i_oldsize) + 1) * sizeof( *(p_ar) ) );         \
 413         }                                                                     \
 414         if( (i_oldsize) - (i_pos) )                                           \
 415         {                                                                     \
 416             memmove( (p_ar) + (i_pos) + 1,                                    \
 417                      (p_ar) + (i_pos),                                        \
 418                      ((i_oldsize) - (i_pos)) * sizeof( *(p_ar) ) );           \
 419         }                                                                     \
 420         (p_ar)[i_pos] = elem;                                                 \
 421         (i_oldsize)++;                                                        \
 422     }                                                                         \
 423     while( 0 )
 424
 425 #define REMOVE_ELEM( p_ar, i_oldsize, i_pos )                                 \
 426     do                                                                        \
 427     {                                                                         \
 428         if( (i_oldsize) - (i_pos) - 1 )                                       \
 429         {                                                                     \
 430             memmove( (p_ar) + (i_pos),                                        \
 431                      (p_ar) + (i_pos) + 1,                                    \
 432                      ((i_oldsize) - (i_pos) - 1) * sizeof( *(p_ar) ) );       \
 433         }                                                                     \
 434         if( i_oldsize > 1 )                                                   \
 435         {                                                                     \
 436             (p_ar) = realloc( p_ar, ((i_oldsize) - 1) * sizeof( *(p_ar) ) );  \
 437         }                                                                     \
 438         else                                                                  \
 439         {                                                                     \
 440             free( p_ar );                                                     \
 441             (p_ar) = NULL;                                                    \
 442         }                                                                     \
 443         (i_oldsize)--;                                                        \
 444     }                                                                         \
 445     while( 0 )
 446
 447
 448 #define TAB_APPEND( count, tab, p )             \
 449     if( (count) > 0 )                           \
 450     {                                           \
 451         (tab) = realloc( (tab), sizeof( void ** ) * ( (count) + 1 ) ); \
 452     }                                           \
 453     else                                        \
 454     {                                           \
 455         (tab) = malloc( sizeof( void ** ) );    \
 456     }                                           \
 457     (void**)(tab)[(count)] = (void*)(p);        \
 458     (count)++
 459
 460 #define TAB_FIND( count, tab, p, index )        \
 461     {                                           \
 462         int _i_;                                \
 463         (index) = -1;                           \
 464         for( _i_ = 0; _i_ < (count); _i_++ )    \
 465         {                                       \
 466             if((void**)(tab)[_i_]==(void*)(p))  \
 467             {                                   \
 468                 (index) = _i_;                  \
 469                 break;                          \
 470             }                                   \
 471         }                                       \
 472     }
 473
 474 #define TAB_REMOVE( count, tab, p )             \
 475     {                                           \
 476         int _i_index_;                          \
 477         TAB_FIND( count, tab, p, _i_index_ );   \
 478         if( _i_index_ >= 0 )                    \
 479         {                                       \
 480             if( (count) > 1 )                     \
 481             {                                   \
 482                 memmove( ((void**)(tab) + _i_index_),    \
 483                          ((void**)(tab) + _i_index_+1),  \
 484                          ( (count) - _i_index_ - 1 ) * sizeof( void* ) );\
 485             }                                   \
 486             else                                \
 487             {                                   \
 488                 free( tab );                    \
 489                 (tab) = NULL;                   \
 490             }                                   \
 491             (count)--;                          \
 492         }                                       \
 493     }
 494
 495 /* MSB (big endian)/LSB (little endian) conversions - network order is always
 496  * MSB, and should be used for both network communications and files. Note that
 497  * byte orders other than little and big endians are not supported, but only
 498  * the VAX seems to have such exotic properties. */
 499 static inline uint16_t U16_AT( void * _p )
 500 {
 501     uint8_t * p = (uint8_t *)_p;
 502     return ( ((uint16_t)p[0] << 8) | p[1] );
 503 }
 504 static inline uint32_t U32_AT( void * _p )
 505 {
 506     uint8_t * p = (uint8_t *)_p;
 507     return ( ((uint32_t)p[0] << 24) | ((uint32_t)p[1] << 16)
 508               | ((uint32_t)p[2] << 8) | p[3] );
 509 }
 510 static inline uint64_t U64_AT( void * _p )
 511 {
 512     uint8_t * p = (uint8_t *)_p;
 513     return ( ((uint64_t)p[0] << 56) | ((uint64_t)p[1] << 48)
 514               | ((uint64_t)p[2] << 40) | ((uint64_t)p[3] << 32)
 515               | ((uint64_t)p[4] << 24) | ((uint64_t)p[5] << 16)
 516               | ((uint64_t)p[6] << 8) | p[7] );
 517 }
 518
 519 static inline uint16_t GetWLE( void * _p )
 520 {
 521     uint8_t * p = (uint8_t *)_p;
 522     return ( ((uint16_t)p[1] << 8) | p[0] );
 523 }
 524 static inline uint32_t GetDWLE( void * _p )
 525 {
 526     uint8_t * p = (uint8_t *)_p;
 527     return ( ((uint32_t)p[3] << 24) | ((uint32_t)p[2] << 16)
 528               | ((uint32_t)p[1] << 8) | p[0] );
 529 }
 530 static inline uint64_t GetQWLE( void * _p )
 531 {
 532     uint8_t * p = (uint8_t *)_p;
 533     return ( ((uint64_t)p[7] << 56) | ((uint64_t)p[6] << 48)
 534               | ((uint64_t)p[5] << 40) | ((uint64_t)p[4] << 32)
 535               | ((uint64_t)p[3] << 24) | ((uint64_t)p[2] << 16)
 536               | ((uint64_t)p[1] << 8) | p[0] );
 537 }
 538
 539 #define GetWBE( p )     U16_AT( p )
 540 #define GetDWBE( p )    U32_AT( p )
 541 #define GetQWBE( p )    U64_AT( p )
 542
 543
 544 #if WORDS_BIGENDIAN
 545 #   define hton16(i)   ( i )
 546 #   define hton32(i)   ( i )
 547 #   define hton64(i)   ( i )
 548 #   define ntoh16(i)   ( i )
 549 #   define ntoh32(i)   ( i )
 550 #   define ntoh64(i)   ( i )
 551 #else
 552 #   define hton16(i)   U16_AT(&i)
 553 #   define hton32(i)   U32_AT(&i)
 554 #   define hton64(i)   U64_AT(&i)
 555 #   define ntoh16(i)   U16_AT(&i)
 556 #   define ntoh32(i)   U32_AT(&i)
 557 #   define ntoh64(i)   U64_AT(&i)
 558 #endif
 559
 560 /* Format string sanity checks */
 561 #ifdef HAVE_ATTRIBUTE_FORMAT
 562 #   define ATTRIBUTE_FORMAT(x,y) __attribute__ ((format(printf,x,y)))
 563 #else
 564 #   define ATTRIBUTE_FORMAT(x,y)
 565 #endif
 566
 567 /* Alignment of critical static data structures */
 568 #ifdef ATTRIBUTE_ALIGNED_MAX
 569 #   define ATTR_ALIGN(align) __attribute__ ((__aligned__ ((ATTRIBUTE_ALIGNED_MAX < align) ? ATTRIBUTE_ALIGNED_MAX : align)))
 570 #else
 571 #   define ATTR_ALIGN(align)
 572 #endif
 573
 574 /* Alignment of critical dynamic data structure
 575  *
 576  * Not all platforms support memalign so we provide a vlc_memalign wrapper
 577  * void *vlc_memalign( size_t align, size_t size, void **pp_orig )
 578  * *pp_orig is the pointer that has to be freed afterwards.
 579  */
 580 #if 0
 581 #ifdef HAVE_POSIX_MEMALIGN
 582 #   define vlc_memalign(align,size,pp_orig) \
 583     ( !posix_memalign( pp_orig, align, size ) ? *(pp_orig) : NULL )
 584 #endif
 585 #endif
 586 #ifdef HAVE_MEMALIGN
 587     /* Some systems have memalign() but no declaration for it */
 588     void * memalign( size_t align, size_t size );
 589
 590 #   define vlc_memalign(pp_orig,align,size) \
 591     ( *(pp_orig) = memalign( align, size ) )
 592
 593 #else /* We don't have any choice but to align manually */
 594 #   define vlc_memalign(pp_orig,align,size) \
 595     (( *(pp_orig) = malloc( size + align - 1 )) \
 596         ? (void *)( (((unsigned long)*(pp_orig)) + (unsigned long)(align-1) ) \
 597                        & (~(unsigned long)(align-1)) ) \
 598         : NULL )
 599
 600 #endif
 601
 602 /* Stuff defined in src/extras/libc.c */
 603 #ifndef HAVE_STRDUP
 604 #   define strdup vlc_strdup
 605     VLC_EXPORT( char *, vlc_strdup, ( const char *s ) );
 606 #elif !defined(__PLUGIN__)
 607 #   define vlc_strdup NULL
 608 #endif
 609
 610 #ifndef HAVE_STRNDUP
 611 #   if defined(STRNDUP_IN_GNOME_H) && \
 612         (defined(MODULE_NAME_IS_gnome)||defined(MODULE_NAME_IS_gnome_main)||\
 613          defined(MODULE_NAME_IS_gnome2)||defined(MODULE_NAME_IS_gnome2_main))
 614         /* Do nothing: gnome.h defines strndup for us */
 615 #   else
 616 #       define strndup vlc_strndup
 617         VLC_EXPORT( char *, vlc_strndup, ( const char *s, size_t n ) );
 618 #   endif
 619 #elif !defined(__PLUGIN__)
 620 #   define vlc_strndup NULL
 621 #endif
 622
 623 #ifndef HAVE_ATOF
 624 #   define atof vlc_atof
 625     VLC_EXPORT( double, vlc_atof, ( const char *nptr ) );
 626 #elif !defined(__PLUGIN__)
 627 #   define vlc_atof NULL
 628 #endif
 629
 630 #ifndef HAVE_ATOLL
 631 #   define atoll vlc_atoll
 632     VLC_EXPORT( int64_t, vlc_atoll, ( const char *nptr ) );
 633 #elif !defined(__PLUGIN__)
 634 #   define vlc_atoll NULL
 635 #endif
 636
 637 #ifndef HAVE_GETENV
 638 #   define getenv vlc_getenv
 639     VLC_EXPORT( char *, vlc_getenv, ( const char *name ) );
 640 #elif !defined(__PLUGIN__)
 641 #   define vlc_getenv NULL
 642 #endif
 643
 644 #ifndef HAVE_STRCASECMP
 645 #   ifdef HAVE_STRICMP
 646 #       define strcasecmp stricmp
 647 #       if !defined(__PLUGIN__)
 648 #           define vlc_strcasecmp NULL
 649 #       endif
 650 #   elif !defined(__PLUGIN__)
 651 #       define strcasecmp vlc_strcasecmp
 652         VLC_EXPORT( int, vlc_strcasecmp, ( const char *s1, const char *s2 ) );
 653 #   endif
 654 #elif !defined(__PLUGIN__)
 655 #   define vlc_strcasecmp NULL
 656 #endif
 657
 658 #ifndef HAVE_STRNCASECMP
 659 #   ifdef HAVE_STRNICMP
 660 #       define strncasecmp strnicmp
 661 #       if !defined(__PLUGIN__)
 662 #           define vlc_strncasecmp NULL
 663 #       endif
 664 #   elif !defined(__PLUGIN__)
 665 #       define strncasecmp vlc_strncasecmp
 666         VLC_EXPORT( int, vlc_strncasecmp, ( const char *s1, const char *s2, size_t n ) );
 667 #   endif
 668 #elif !defined(__PLUGIN__)
 669 #   define vlc_strncasecmp NULL
 670 #endif
 671
 672 /* Format type specifiers for 64 bits numbers */
 673 #if !defined(WIN32) && !defined(UNDER_CE)
 674 #   define I64Fd "%lld"
 675 #   define I64Fi "%lli"
 676 #   define I64Fo "%llo"
 677 #   define I64Fu "%llu"
 678 #   define I64Fx "%llx"
 679 #   define I64FX "%llX"
 680 #else
 681 #   define I64Fd "%I64d"
 682 #   define I64Fi "%I64i"
 683 #   define I64Fo "%I64o"
 684 #   define I64Fu "%I64u"
 685 #   define I64Fx "%I64x"
 686 #   define I64FX "%I64X"
 687 #endif /* defined(WIN32)||defined(UNDER_CE) */
 688
 689 /* 64 bits integer constant suffix */
 690 #if defined( __MINGW32__ ) || (!defined(WIN32) && !defined(UNDER_CE))
 691 #   define I64C(x)         x##LL
 692 #else
 693 #   define I64C(x)         x##i64
 694 #endif /* defined(WIN32)||defined(UNDER_CE) */
 695
 696 #if defined(WIN32) || defined(UNDER_CE)
 697 /* win32, cl and icl support */
 698 #   if defined( _MSC_VER ) || !defined( __MINGW32__ )
 699 #       define __attribute__(x)
 700 #       define __inline__      __inline
 701 #       define S_IFBLK         0x3000  /* Block */
 702 #       define S_ISBLK(m)      (0)
 703 #       define S_ISCHR(m)      (0)
 704 #       define S_ISFIFO(m)     (((m)&_S_IFMT) == _S_IFIFO)
 705 #       define S_ISREG(m)      (((m)&_S_IFMT) == _S_IFREG)
 706 #   endif
 707
 708 /* several type definitions */
 709 #   if defined( __MINGW32__ )
 710 #       if !defined( _OFF_T_ )
 711 typedef long long _off_t;
 712 typedef _off_t off_t;
 713 #           define _OFF_T_
 714 #       else
 715 #           ifdef off_t
 716 #               undef off_t
 717 #           endif
 718 #           define off_t long long
 719 #       endif
 720 #   endif
 721
 722 #   if defined( _MSC_VER )
 723 #       if !defined( _OFF_T_DEFINED )
 724 typedef __int64 off_t;
 725 #           define _OFF_T_DEFINED
 726 #       else
 727 #           define off_t __int64
 728 #       endif
 729 #   endif
 730
 731 #   if defined( __BORLANDC__ )
 732 #       undef off_t
 733 #       define off_t unsigned __int64
 734 #   endif
 735
 736 #   ifndef O_NONBLOCK
 737 #       define O_NONBLOCK 0
 738 #   endif
 739
 740 #   ifndef alloca
 741 #       define alloca _alloca
 742 #   endif
 743
 744     /* These two are not defined in mingw32 (bug?) */
 745 #   ifndef snprintf
 746 #       define snprintf _snprintf
 747 #   endif
 748 #   ifndef vsnprintf
 749 #       define vsnprintf _vsnprintf
 750 #   endif
 751
 752 #endif
 753
 754 /* lseek (defined in src/extras/libc.c) */
 755 #ifndef HAVE_LSEEK
 756 #   define lseek vlc_lseek
 757     VLC_EXPORT( off_t, vlc_lseek, ( int fildes, off_t offset, int whence ) );
 758 #elif !defined(__PLUGIN__)
 759 #   define vlc_lseek NULL
 760 #endif
 761
 762 /* vlc_wraptext (defined in src/extras/libc.c) */
 763 #define wraptext vlc_wraptext
 764 VLC_EXPORT( char *, vlc_wraptext, ( const char *, int, vlc_bool_t ) );
 765
 766 /*****************************************************************************
 767  * CPU capabilities
 768  *****************************************************************************/
 769 #define CPU_CAPABILITY_NONE    0
 770 #define CPU_CAPABILITY_486     (1<<0)
 771 #define CPU_CAPABILITY_586     (1<<1)
 772 #define CPU_CAPABILITY_PPRO    (1<<2)
 773 #define CPU_CAPABILITY_MMX     (1<<3)
 774 #define CPU_CAPABILITY_3DNOW   (1<<4)
 775 #define CPU_CAPABILITY_MMXEXT  (1<<5)
 776 #define CPU_CAPABILITY_SSE     (1<<6)
 777 #define CPU_CAPABILITY_ALTIVEC (1<<16)
 778 #define CPU_CAPABILITY_FPU     (1<<31)
 779
 780 /*****************************************************************************
 781  * I18n stuff
 782  *****************************************************************************/
 783 VLC_EXPORT( char *, vlc_dgettext, ( const char *package, const char *msgid ) );
 784
 785 #if defined( ENABLE_NLS ) && \
 786      (defined(MODULE_NAME_IS_gnome)||defined(MODULE_NAME_IS_gnome_main)||\
 787       defined(MODULE_NAME_IS_gnome2)||defined(MODULE_NAME_IS_gnome2_main))
 788     /* Declare nothing: gnome.h will do it for us */
 789 #elif defined( ENABLE_NLS )
 790 #if defined( HAVE_INCLUDED_GETTEXT )
 791 #   include "libintl.h"
 792 #else
 793 #   include <libintl.h>
 794 #endif
 795 #   undef _
 796 #if defined( __BORLANDC__ )
 797 #define _(String) vlc_dgettext (PACKAGE_TARNAME, String)
 798 #else
 799 #   define _(String) vlc_dgettext (PACKAGE, String)
 800 #endif
 801 #   define N_(String) ((char*)(String))
 802 #else
 803 #   define _(String) ((char*)(String))
 804 #   define N_(String) ((char*)(String))
 805 #endif
 806
 807 /*****************************************************************************
 808  * Additional vlc stuff
 809  *****************************************************************************/
 810 #include "vlc_symbols.h"
 811 #include "os_specific.h"
 812 #include "vlc_messages.h"
 813 #include "variables.h"
 814 #include "vlc_objects.h"
 815 #include "vlc_threads_funcs.h"
 816 #include "mtime.h"
 817 #include "modules.h"
 818 #include "main.h"
 819 #include "configuration.h"
 820
 821 #if defined( __BORLANDC__ )
 822 #   undef PACKAGE
 823 #   define PACKAGE
 824 #endif
 825