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 1.110 2004/02/29 13:08:56 gbazin 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 #elif defined( _MSC_VER )
  47 #   pragma warning( disable : 4244 )
  48 #endif
  49
  50 #include "vlc_config.h"
  51 #include "modules_inner.h"
  52
  53 /*****************************************************************************
  54  * Required system headers
  55  *****************************************************************************/
  56 #include <stdlib.h>
  57 #include <stdarg.h>
  58
  59 #ifdef HAVE_STRING_H
  60 #   include <string.h>                                         /* strerror() */
  61 #endif
  62
  63 #ifdef HAVE_SYS_TYPES_H
  64 #   include <sys/types.h>
  65 #endif
  66
  67 /*****************************************************************************
  68  * Basic types definitions
  69  *****************************************************************************/
  70 #if defined( HAVE_STDINT_H )
  71 #   include <stdint.h>
  72 #elif defined( HAVE_INTTYPES_H )
  73 #   include <inttypes.h>
  74 #elif defined( SYS_CYGWIN )
  75 #   include <sys/types.h>
  76     /* Cygwin only defines half of these... */
  77     typedef u_int8_t            uint8_t;
  78     typedef u_int16_t           uint16_t;
  79     typedef u_int32_t           uint32_t;
  80     typedef u_int64_t           uint64_t;
  81 #else
  82     /* Fallback types (very x86-centric, sorry) */
  83     typedef unsigned char       uint8_t;
  84     typedef signed char         int8_t;
  85     typedef unsigned short      uint16_t;
  86     typedef signed short        int16_t;
  87     typedef unsigned int        uint32_t;
  88     typedef signed int          int32_t;
  89 #   if defined( _MSC_VER ) \
  90       || defined( UNDER_CE ) \
  91       || ( defined( WIN32 ) && !defined( __MINGW32__ ) )
  92     typedef unsigned __int64    uint64_t;
  93     typedef signed __int64      int64_t;
  94 #   else
  95     typedef unsigned long long  uint64_t;
  96     typedef signed long long    int64_t;
  97 #   endif
  98     typedef uint32_t            uintptr_t;
  99     typedef int32_t             intptr_t;
 100 #endif
 101
 102 typedef uint8_t                 byte_t;
 103
 104 /* ptrdiff_t definition */
 105 #ifdef HAVE_STDDEF_H
 106 #   include <stddef.h>
 107 #else
 108 #   include <malloc.h>
 109 #   ifndef _PTRDIFF_T
 110 #       define _PTRDIFF_T
 111 /* Not portable in a 64-bit environment. */
 112 typedef int                 ptrdiff_t;
 113 #   endif
 114 #endif
 115
 116 #if defined( WIN32 )
 117 #   include <malloc.h>
 118 #   ifndef PATH_MAX
 119 #       define PATH_MAX MAX_PATH
 120 #   endif
 121 #endif
 122
 123 #if (defined( WIN32 ) || defined( UNDER_CE )) && !defined( _SSIZE_T_ )
 124 typedef int                 ssize_t;
 125 #endif
 126
 127 /* Counter for statistics and profiling */
 128 typedef unsigned long       count_t;
 129
 130 /* DCT elements types */
 131 typedef int16_t             dctelem_t;
 132
 133 /* Video buffer types */
 134 typedef uint8_t             yuv_data_t;
 135
 136 /* Audio volume */
 137 typedef uint16_t            audio_volume_t;
 138
 139 #ifndef HAVE_SOCKLEN_T
 140 typedef int                 socklen_t;
 141 #endif
 142
 143 /**
 144  * High precision date or time interval
 145  *
 146  * Store a high precision date or time interval. The maximum precision is the
 147  * microsecond, and a 64 bits integer is used to avoid overflows (maximum
 148  * time interval is then 292271 years, which should be long enough for any
 149  * video). Dates are stored as microseconds since a common date (usually the
 150  * epoch). Note that date and time intervals can be manipulated using regular
 151  * arithmetic operators, and that no special functions are required.
 152  */
 153 typedef int64_t mtime_t;
 154
 155 /**
 156  * The vlc_fourcc_t type.
 157  *
 158  * See http://www.webartz.com/fourcc/ for a very detailed list.
 159  */
 160 typedef uint32_t vlc_fourcc_t;
 161
 162 #ifdef WORDS_BIGENDIAN
 163 #   define VLC_FOURCC( a, b, c, d ) \
 164         ( ((uint32_t)d) | ( ((uint32_t)c) << 8 ) \
 165            | ( ((uint32_t)b) << 16 ) | ( ((uint32_t)a) << 24 ) )
 166 #   define VLC_TWOCC( a, b ) \
 167         ( (uint16_t)(b) | ( (uint16_t)(a) << 8 ) )
 168
 169 #else
 170 #   define VLC_FOURCC( a, b, c, d ) \
 171         ( ((uint32_t)a) | ( ((uint32_t)b) << 8 ) \
 172            | ( ((uint32_t)c) << 16 ) | ( ((uint32_t)d) << 24 ) )
 173 #   define VLC_TWOCC( a, b ) \
 174         ( (uint16_t)(a) | ( (uint16_t)(b) << 8 ) )
 175
 176 #endif
 177
 178 /*****************************************************************************
 179  * Classes declaration
 180  *****************************************************************************/
 181
 182 /* Internal types */
 183 typedef struct libvlc_t libvlc_t;
 184 typedef struct vlc_t vlc_t;
 185 typedef struct variable_t variable_t;
 186
 187 /* Messages */
 188 typedef struct msg_bank_t msg_bank_t;
 189 typedef struct msg_subscription_t msg_subscription_t;
 190
 191 /* Playlist */
 192 typedef struct playlist_t playlist_t;
 193 typedef struct playlist_item_t playlist_item_t;
 194 typedef struct playlist_group_t playlist_group_t;
 195 typedef struct item_info_t item_info_t;
 196 typedef struct item_info_category_t item_info_category_t;
 197 typedef struct playlist_export_t playlist_export_t;
 198
 199 /* Modules */
 200 typedef struct module_bank_t module_bank_t;
 201 typedef struct module_t module_t;
 202 typedef struct module_config_t module_config_t;
 203 typedef struct module_symbols_t module_symbols_t;
 204
 205 /* Interface */
 206 typedef struct intf_thread_t intf_thread_t;
 207 typedef struct intf_sys_t intf_sys_t;
 208 typedef struct intf_console_t intf_console_t;
 209 typedef struct intf_msg_t intf_msg_t;
 210 typedef struct intf_channel_t intf_channel_t;
 211
 212 /* Input */
 213 typedef struct input_thread_t input_thread_t;
 214 typedef struct input_thread_sys_t input_thread_sys_t;
 215 typedef struct input_area_t input_area_t;
 216 typedef struct input_buffers_t input_buffers_t;
 217 typedef struct input_socket_t input_socket_t;
 218 typedef struct input_info_t input_info_t;
 219 typedef struct input_info_category_t input_info_category_t;
 220 typedef struct access_sys_t access_sys_t;
 221 typedef struct demux_sys_t demux_sys_t;
 222 typedef struct es_descriptor_t es_descriptor_t;
 223 typedef struct es_sys_t es_sys_t;
 224 typedef struct pgrm_descriptor_t pgrm_descriptor_t;
 225 typedef struct pgrm_sys_t pgrm_sys_t;
 226 typedef struct stream_descriptor_t stream_descriptor_t;
 227
 228 /* Format */
 229 typedef struct audio_format_t audio_format_t;
 230 typedef struct video_format_t video_format_t;
 231 typedef struct subs_format_t subs_format_t;
 232 typedef struct es_format_t es_format_t;
 233 typedef struct video_palette_t video_palette_t;
 234
 235 /* NInput */
 236 typedef struct stream_sys_t stream_sys_t;
 237 typedef struct stream_t     stream_t;
 238 typedef struct es_out_t     es_out_t;
 239 typedef struct es_out_id_t  es_out_id_t;
 240 typedef struct es_out_sys_t es_out_sys_t;
 241 typedef struct demux_t  demux_t;
 242
 243 /* Audio */
 244 typedef struct aout_instance_t aout_instance_t;
 245 typedef struct aout_sys_t aout_sys_t;
 246 typedef struct aout_fifo_t aout_fifo_t;
 247 typedef struct aout_input_t aout_input_t;
 248 typedef struct aout_buffer_t aout_buffer_t;
 249 typedef audio_format_t audio_sample_format_t;
 250 typedef struct audio_date_t audio_date_t;
 251 typedef struct aout_filter_t aout_filter_t;
 252
 253 /* Video */
 254 typedef struct vout_thread_t vout_thread_t;
 255 typedef struct vout_sys_t vout_sys_t;
 256 typedef struct chroma_sys_t chroma_sys_t;
 257 typedef video_format_t video_frame_format_t;
 258 typedef struct picture_t picture_t;
 259 typedef struct picture_sys_t picture_sys_t;
 260 typedef struct picture_heap_t picture_heap_t;
 261 typedef struct subpicture_t subpicture_t;
 262 typedef struct subpicture_sys_t subpicture_sys_t;
 263 typedef struct vout_synchro_t vout_synchro_t;
 264 typedef struct text_renderer_sys_t text_renderer_sys_t;
 265 typedef struct text_style_t text_style_t;
 266
 267 /* Stream output */
 268 typedef struct sout_instance_t sout_instance_t;
 269 typedef struct sout_fifo_t sout_fifo_t;
 270 typedef struct sout_input_t sout_input_t;
 271 typedef struct sout_packetizer_input_t sout_packetizer_input_t;
 272 typedef struct sout_buffer_t sout_buffer_t;
 273 typedef struct sout_access_out_t sout_access_out_t;
 274 typedef struct sout_mux_t sout_mux_t;
 275 typedef struct sout_stream_t    sout_stream_t;
 276 typedef struct sout_cfg_t       sout_cfg_t;
 277 /*typedef struct sap_session_t    sap_session_t;
 278 typedef struct slp_session_t    slp_session_t;*/
 279
 280 /* Decoders */
 281 typedef struct decoder_t      decoder_t;
 282 typedef struct decoder_sys_t  decoder_sys_t;
 283
 284 /* Encoders */
 285 typedef struct encoder_t      encoder_t;
 286 typedef struct encoder_sys_t  encoder_sys_t;
 287
 288 /* Misc */
 289 typedef struct data_packet_t data_packet_t;
 290 typedef struct data_buffer_t data_buffer_t;
 291 typedef struct stream_position_t stream_position_t;
 292 typedef struct stream_ctrl_t stream_ctrl_t;
 293 typedef struct pes_packet_t pes_packet_t;
 294 typedef struct network_socket_t network_socket_t;
 295 typedef struct iso639_lang_t iso639_lang_t;
 296
 297 /* block */
 298 typedef struct block_t      block_t;
 299 typedef struct block_fifo_t block_fifo_t;
 300
 301 /*****************************************************************************
 302  * Variable callbacks
 303  *****************************************************************************/
 304 typedef int ( * vlc_callback_t ) ( vlc_object_t *,      /* variable's object */
 305                                    char const *,            /* variable name */
 306                                    vlc_value_t,                 /* old value */
 307                                    vlc_value_t,                 /* new value */
 308                                    void * );                /* callback data */
 309
 310 /*****************************************************************************
 311  * Plug-in stuff
 312  *****************************************************************************/
 313 #ifndef __PLUGIN__
 314 #   define VLC_EXPORT( type, name, args ) type name args
 315 #else
 316 #   define VLC_EXPORT( type, name, args ) struct _u_n_u_s_e_d_
 317     extern module_symbols_t* p_symbols;
 318 #endif
 319
 320 /*****************************************************************************
 321  * OS-specific headers and thread types
 322  *****************************************************************************/
 323 #if defined( WIN32 ) || defined( UNDER_CE )
 324 #   define WIN32_LEAN_AND_MEAN
 325 #   include <windows.h>
 326 #   define IS_WINNT ( GetVersion() < 0x80000000 )
 327 #endif
 328
 329 #include "vlc_threads.h"
 330
 331 /*****************************************************************************
 332  * Common structure members
 333  *****************************************************************************/
 334
 335 /* VLC_COMMON_MEMBERS : members common to all basic vlc objects */
 336 #define VLC_COMMON_MEMBERS                                                  \
 337 /** \name VLC_COMMON_MEMBERS                                                \
 338  * these members are common for all vlc objects                             \
 339  */                                                                         \
 340 /**@{*/                                                                     \
 341     int   i_object_id;                                                      \
 342     int   i_object_type;                                                    \
 343     char *psz_object_type;                                                  \
 344     char *psz_object_name;                                                  \
 345                                                                             \
 346     /* Thread properties, if any */                                         \
 347     vlc_bool_t   b_thread;                                                  \
 348     vlc_thread_t thread_id;                                                 \
 349                                                                             \
 350     /* Object access lock */                                                \
 351     vlc_mutex_t  object_lock;                                               \
 352     vlc_cond_t   object_wait;                                               \
 353                                                                             \
 354     /* Object properties */                                                 \
 355     volatile vlc_bool_t b_error;                  /**< set by the object */ \
 356     volatile vlc_bool_t b_die;                   /**< set by the outside */ \
 357     volatile vlc_bool_t b_dead;                   /**< set by the object */ \
 358     volatile vlc_bool_t b_attached;               /**< set by the object */ \
 359                                                                             \
 360     /* Object variables */                                                  \
 361     vlc_mutex_t     var_lock;                                               \
 362     int             i_vars;                                                 \
 363     variable_t *    p_vars;                                                 \
 364                                                                             \
 365     /* Stuff related to the libvlc structure */                             \
 366     libvlc_t *      p_libvlc;                      /**< root of all evil */ \
 367     vlc_t *         p_vlc;                   /**< (root of all evil) - 1 */ \
 368                                                                             \
 369     volatile int    i_refcount;                         /**< usage count */ \
 370     vlc_object_t *  p_parent;                            /**< our parent */ \
 371     vlc_object_t ** pp_children;                       /**< our children */ \
 372     volatile int    i_children;                                             \
 373                                                                             \
 374     /* Private data */                                                      \
 375     void *          p_private;                                              \
 376                                                                             \
 377     /** Just a reminder so that people don't cast garbage */                \
 378     int be_sure_to_add_VLC_COMMON_MEMBERS_to_struct;                        \
 379 /**@}*/                                                                     \
 380
 381 /* VLC_OBJECT: attempt at doing a clever cast */
 382 #define VLC_OBJECT( x ) \
 383     ((vlc_object_t *)(x))+0*(x)->be_sure_to_add_VLC_COMMON_MEMBERS_to_struct
 384
 385 /*****************************************************************************
 386  * Macros and inline functions
 387  *****************************************************************************/
 388 #ifdef NTOHL_IN_SYS_PARAM_H
 389 #   include <sys/param.h>
 390
 391 #elif !defined(WIN32) && !defined( UNDER_CE )
 392 #   include <netinet/in.h>
 393
 394 #endif /* NTOHL_IN_SYS_PARAM_H || WIN32 */
 395
 396 /* CEIL: division with round to nearest greater integer */
 397 #define CEIL(n, d)  ( ((n) / (d)) + ( ((n) % (d)) ? 1 : 0) )
 398
 399 /* PAD: PAD(n, d) = CEIL(n ,d) * d */
 400 #define PAD(n, d)   ( ((n) % (d)) ? ((((n) / (d)) + 1) * (d)) : (n) )
 401
 402 /* __MAX and __MIN: self explanatory */
 403 #ifndef __MAX
 404 #   define __MAX(a, b)   ( ((a) > (b)) ? (a) : (b) )
 405 #endif
 406 #ifndef __MIN
 407 #   define __MIN(a, b)   ( ((a) < (b)) ? (a) : (b) )
 408 #endif
 409
 410 /* Dynamic array handling: realloc array, move data, increment position */
 411 #define INSERT_ELEM( p_ar, i_oldsize, i_pos, elem )                           \
 412     do                                                                        \
 413     {                                                                         \
 414         if( i_oldsize )                                                       \
 415         {                                                                     \
 416             (p_ar) = realloc( p_ar, ((i_oldsize) + 1) * sizeof( *(p_ar) ) );  \
 417         }                                                                     \
 418         else                                                                  \
 419         {                                                                     \
 420             (p_ar) = malloc( ((i_oldsize) + 1) * sizeof( *(p_ar) ) );         \
 421         }                                                                     \
 422         if( (i_oldsize) - (i_pos) )                                           \
 423         {                                                                     \
 424             memmove( (p_ar) + (i_pos) + 1,                                    \
 425                      (p_ar) + (i_pos),                                        \
 426                      ((i_oldsize) - (i_pos)) * sizeof( *(p_ar) ) );           \
 427         }                                                                     \
 428         (p_ar)[i_pos] = elem;                                                 \
 429         (i_oldsize)++;                                                        \
 430     }                                                                         \
 431     while( 0 )
 432
 433 #define REMOVE_ELEM( p_ar, i_oldsize, i_pos )                                 \
 434     do                                                                        \
 435     {                                                                         \
 436         if( (i_oldsize) - (i_pos) - 1 )                                       \
 437         {                                                                     \
 438             memmove( (p_ar) + (i_pos),                                        \
 439                      (p_ar) + (i_pos) + 1,                                    \
 440                      ((i_oldsize) - (i_pos) - 1) * sizeof( *(p_ar) ) );       \
 441         }                                                                     \
 442         if( i_oldsize > 1 )                                                   \
 443         {                                                                     \
 444             (p_ar) = realloc( p_ar, ((i_oldsize) - 1) * sizeof( *(p_ar) ) );  \
 445         }                                                                     \
 446         else                                                                  \
 447         {                                                                     \
 448             free( p_ar );                                                     \
 449             (p_ar) = NULL;                                                    \
 450         }                                                                     \
 451         (i_oldsize)--;                                                        \
 452     }                                                                         \
 453     while( 0 )
 454
 455
 456 #define TAB_APPEND( count, tab, p )             \
 457     if( (count) > 0 )                           \
 458     {                                           \
 459         (void *)(tab) = realloc( tab, sizeof( void ** ) * ( (count) + 1 ) ); \
 460     }                                           \
 461     else                                        \
 462     {                                           \
 463         (void *)(tab) = malloc( sizeof( void ** ) );    \
 464     }                                           \
 465     ((void**)(tab))[count] = (void*)(p);        \
 466     (count)++
 467
 468 #define TAB_FIND( count, tab, p, index )        \
 469     {                                           \
 470         int _i_;                                \
 471         (index) = -1;                           \
 472         for( _i_ = 0; _i_ < (count); _i_++ )    \
 473         {                                       \
 474             if( ((void**)(tab))[_i_] == (void*)(p) )  \
 475             {                                   \
 476                 (index) = _i_;                  \
 477                 break;                          \
 478             }                                   \
 479         }                                       \
 480     }
 481
 482 #define TAB_REMOVE( count, tab, p )             \
 483     {                                           \
 484         int _i_index_;                          \
 485         TAB_FIND( count, tab, p, _i_index_ );   \
 486         if( _i_index_ >= 0 )                    \
 487         {                                       \
 488             if( (count) > 1 )                     \
 489             {                                   \
 490                 memmove( ((void**)(tab) + _i_index_),    \
 491                          ((void**)(tab) + _i_index_+1),  \
 492                          ( (count) - _i_index_ - 1 ) * sizeof( void* ) );\
 493             }                                   \
 494             else                                \
 495             {                                   \
 496                 free( tab );                    \
 497                 (tab) = NULL;                   \
 498             }                                   \
 499             (count)--;                          \
 500         }                                       \
 501     }
 502
 503 /* MSB (big endian)/LSB (little endian) conversions - network order is always
 504  * MSB, and should be used for both network communications and files. Note that
 505  * byte orders other than little and big endians are not supported, but only
 506  * the VAX seems to have such exotic properties. */
 507 static inline uint16_t U16_AT( void const * _p )
 508 {
 509     uint8_t * p = (uint8_t *)_p;
 510     return ( ((uint16_t)p[0] << 8) | p[1] );
 511 }
 512 static inline uint32_t U32_AT( void const * _p )
 513 {
 514     uint8_t * p = (uint8_t *)_p;
 515     return ( ((uint32_t)p[0] << 24) | ((uint32_t)p[1] << 16)
 516               | ((uint32_t)p[2] << 8) | p[3] );
 517 }
 518 static inline uint64_t U64_AT( void const * _p )
 519 {
 520     uint8_t * p = (uint8_t *)_p;
 521     return ( ((uint64_t)p[0] << 56) | ((uint64_t)p[1] << 48)
 522               | ((uint64_t)p[2] << 40) | ((uint64_t)p[3] << 32)
 523               | ((uint64_t)p[4] << 24) | ((uint64_t)p[5] << 16)
 524               | ((uint64_t)p[6] << 8) | p[7] );
 525 }
 526
 527 static inline uint16_t GetWLE( void const * _p )
 528 {
 529     uint8_t * p = (uint8_t *)_p;
 530     return ( ((uint16_t)p[1] << 8) | p[0] );
 531 }
 532 static inline uint32_t GetDWLE( void const * _p )
 533 {
 534     uint8_t * p = (uint8_t *)_p;
 535     return ( ((uint32_t)p[3] << 24) | ((uint32_t)p[2] << 16)
 536               | ((uint32_t)p[1] << 8) | p[0] );
 537 }
 538 static inline uint64_t GetQWLE( void const * _p )
 539 {
 540     uint8_t * p = (uint8_t *)_p;
 541     return ( ((uint64_t)p[7] << 56) | ((uint64_t)p[6] << 48)
 542               | ((uint64_t)p[5] << 40) | ((uint64_t)p[4] << 32)
 543               | ((uint64_t)p[3] << 24) | ((uint64_t)p[2] << 16)
 544               | ((uint64_t)p[1] << 8) | p[0] );
 545 }
 546
 547 #define GetWBE( p )     U16_AT( p )
 548 #define GetDWBE( p )    U32_AT( p )
 549 #define GetQWBE( p )    U64_AT( p )
 550
 551 /* Helper writer functions */
 552
 553 #define SetWLE( p, v ) _SetWLE( (uint8_t*)p, v)
 554 static inline void _SetWLE( uint8_t *p, uint16_t i_dw )
 555 {
 556     p[1] = ( i_dw >>  8 )&0xff;
 557     p[0] = ( i_dw       )&0xff;
 558 }
 559
 560 #define SetDWLE( p, v ) _SetDWLE( (uint8_t*)p, v)
 561 static inline void _SetDWLE( uint8_t *p, uint32_t i_dw )
 562 {
 563     p[3] = ( i_dw >> 24 )&0xff;
 564     p[2] = ( i_dw >> 16 )&0xff;
 565     p[1] = ( i_dw >>  8 )&0xff;
 566     p[0] = ( i_dw       )&0xff;
 567 }
 568 #define SetQWLE( p, v ) _SetQWLE( (uint8_t*)p, v)
 569 static inline void _SetQWLE( uint8_t *p, uint64_t i_qw )
 570 {
 571     SetDWLE( p,   i_qw&0xffffffff );
 572     SetDWLE( p+4, ( i_qw >> 32)&0xffffffff );
 573 }
 574
 575 #if WORDS_BIGENDIAN
 576 #   define hton16(i)   ( i )
 577 #   define hton32(i)   ( i )
 578 #   define hton64(i)   ( i )
 579 #   define ntoh16(i)   ( i )
 580 #   define ntoh32(i)   ( i )
 581 #   define ntoh64(i)   ( i )
 582 #else
 583 #   define hton16(i)   U16_AT(&i)
 584 #   define hton32(i)   U32_AT(&i)
 585 #   define hton64(i)   U64_AT(&i)
 586 #   define ntoh16(i)   U16_AT(&i)
 587 #   define ntoh32(i)   U32_AT(&i)
 588 #   define ntoh64(i)   U64_AT(&i)
 589 #endif
 590
 591 /* Format string sanity checks */
 592 #ifdef HAVE_ATTRIBUTE_FORMAT
 593 #   define ATTRIBUTE_FORMAT(x,y) __attribute__ ((format(printf,x,y)))
 594 #else
 595 #   define ATTRIBUTE_FORMAT(x,y)
 596 #endif
 597
 598 /* Alignment of critical static data structures */
 599 #ifdef ATTRIBUTE_ALIGNED_MAX
 600 #   define ATTR_ALIGN(align) __attribute__ ((__aligned__ ((ATTRIBUTE_ALIGNED_MAX < align) ? ATTRIBUTE_ALIGNED_MAX : align)))
 601 #else
 602 #   define ATTR_ALIGN(align)
 603 #endif
 604
 605 /* Alignment of critical dynamic data structure
 606  *
 607  * Not all platforms support memalign so we provide a vlc_memalign wrapper
 608  * void *vlc_memalign( size_t align, size_t size, void **pp_orig )
 609  * *pp_orig is the pointer that has to be freed afterwards.
 610  */
 611 #if 0
 612 #ifdef HAVE_POSIX_MEMALIGN
 613 #   define vlc_memalign(align,size,pp_orig) \
 614     ( !posix_memalign( pp_orig, align, size ) ? *(pp_orig) : NULL )
 615 #endif
 616 #endif
 617 #ifdef HAVE_MEMALIGN
 618     /* Some systems have memalign() but no declaration for it */
 619     void * memalign( size_t align, size_t size );
 620
 621 #   define vlc_memalign(pp_orig,align,size) \
 622     ( *(pp_orig) = memalign( align, size ) )
 623
 624 #else /* We don't have any choice but to align manually */
 625 #   define vlc_memalign(pp_orig,align,size) \
 626     (( *(pp_orig) = malloc( size + align - 1 )) \
 627         ? (void *)( (((unsigned long)*(pp_orig)) + (unsigned long)(align-1) ) \
 628                        & (~(unsigned long)(align-1)) ) \
 629         : NULL )
 630
 631 #endif
 632
 633 /* Stuff defined in src/extras/libc.c */
 634 #ifndef HAVE_STRDUP
 635 #   define strdup vlc_strdup
 636     VLC_EXPORT( char *, vlc_strdup, ( const char *s ) );
 637 #elif !defined(__PLUGIN__)
 638 #   define vlc_strdup NULL
 639 #endif
 640
 641 #if !defined(HAVE_VASPRINTF) || defined(SYS_DARWIN) || defined(SYS_BEOS)
 642 #   define vasprintf vlc_vasprintf
 643     VLC_EXPORT( int, vlc_vasprintf, (char **, const char *, va_list ) );
 644 #elif !defined(__PLUGIN__)
 645 #   define vlc_vasprintf NULL
 646 #endif
 647
 648 #if !defined(HAVE_ASPRINTF) || defined(SYS_DARWIN) || defined(SYS_BEOS)
 649 #   define asprintf vlc_asprintf
 650     VLC_EXPORT( int, vlc_asprintf, (char **, const char *, ... ) );
 651 #elif !defined(__PLUGIN__)
 652 #   define vlc_asprintf NULL
 653 #endif
 654
 655 #ifndef HAVE_STRNDUP
 656 #   if defined(STRNDUP_IN_GNOME_H) && \
 657         (defined(MODULE_NAME_IS_gnome)||defined(MODULE_NAME_IS_gnome_main)||\
 658          defined(MODULE_NAME_IS_gnome2)||defined(MODULE_NAME_IS_gnome2_main))
 659         /* Do nothing: gnome.h defines strndup for us */
 660 #   else
 661 #       define strndup vlc_strndup
 662         VLC_EXPORT( char *, vlc_strndup, ( const char *s, size_t n ) );
 663 #   endif
 664 #elif !defined(__PLUGIN__)
 665 #   define vlc_strndup NULL
 666 #endif
 667
 668 #ifndef HAVE_ATOF
 669 #   define atof vlc_atof
 670     VLC_EXPORT( double, vlc_atof, ( const char *nptr ) );
 671 #elif !defined(__PLUGIN__)
 672 #   define vlc_atof NULL
 673 #endif
 674
 675 #ifndef HAVE_ATOLL
 676 #   define atoll vlc_atoll
 677     VLC_EXPORT( int64_t, vlc_atoll, ( const char *nptr ) );
 678 #elif !defined(__PLUGIN__)
 679 #   define vlc_atoll NULL
 680 #endif
 681
 682 #ifndef HAVE_GETENV
 683 #   define getenv vlc_getenv
 684     VLC_EXPORT( char *, vlc_getenv, ( const char *name ) );
 685 #elif !defined(__PLUGIN__)
 686 #   define vlc_getenv NULL
 687 #endif
 688
 689 #ifndef HAVE_STRCASECMP
 690 #   ifdef HAVE_STRICMP
 691 #       define strcasecmp stricmp
 692 #       if !defined(__PLUGIN__)
 693 #           define vlc_strcasecmp NULL
 694 #       endif
 695 #   elif !defined(__PLUGIN__)
 696 #       define strcasecmp vlc_strcasecmp
 697         VLC_EXPORT( int, vlc_strcasecmp, ( const char *s1, const char *s2 ) );
 698 #   endif
 699 #elif !defined(__PLUGIN__)
 700 #   define vlc_strcasecmp NULL
 701 #endif
 702
 703 #ifndef HAVE_STRNCASECMP
 704 #   ifdef HAVE_STRNICMP
 705 #       define strncasecmp strnicmp
 706 #       if !defined(__PLUGIN__)
 707 #           define vlc_strncasecmp NULL
 708 #       endif
 709 #   elif !defined(__PLUGIN__)
 710 #       define strncasecmp vlc_strncasecmp
 711         VLC_EXPORT( int, vlc_strncasecmp, ( const char *s1, const char *s2, size_t n ) );
 712 #   endif
 713 #elif !defined(__PLUGIN__)
 714 #   define vlc_strncasecmp NULL
 715 #endif
 716
 717 /* Format type specifiers for 64 bits numbers */
 718 #if !defined(WIN32) && !defined(UNDER_CE)
 719 #   define I64Fd "%lld"
 720 #   define I64Fi "%lli"
 721 #   define I64Fo "%llo"
 722 #   define I64Fu "%llu"
 723 #   define I64Fx "%llx"
 724 #   define I64FX "%llX"
 725 #else
 726 #   define I64Fd "%I64d"
 727 #   define I64Fi "%I64i"
 728 #   define I64Fo "%I64o"
 729 #   define I64Fu "%I64u"
 730 #   define I64Fx "%I64x"
 731 #   define I64FX "%I64X"
 732 #endif /* defined(WIN32)||defined(UNDER_CE) */
 733
 734 /* 64 bits integer constant suffix */
 735 #if defined( __MINGW32__ ) || (!defined(WIN32) && !defined(UNDER_CE))
 736 #   define I64C(x)         x##LL
 737 #   define UI64C(x)        x##ULL
 738 #else
 739 #   define I64C(x)         x##i64
 740 #   define UI64C(x)        x##ui64
 741 #endif /* defined(WIN32)||defined(UNDER_CE) */
 742
 743 #if defined(WIN32) || defined(UNDER_CE)
 744 /* win32, cl and icl support */
 745 #   if defined( _MSC_VER ) || !defined( __MINGW32__ )
 746 #       define __attribute__(x)
 747 #       define __inline__      __inline
 748 #       define S_IFBLK         0x3000  /* Block */
 749 #       define S_ISBLK(m)      (0)
 750 #       define S_ISCHR(m)      (0)
 751 #       define S_ISFIFO(m)     (((m)&_S_IFMT) == _S_IFIFO)
 752 #       define S_ISREG(m)      (((m)&_S_IFMT) == _S_IFREG)
 753 #   endif
 754
 755 /* several type definitions */
 756 #   if defined( __MINGW32__ )
 757 #       if !defined( _OFF_T_ )
 758 typedef long long _off_t;
 759 typedef _off_t off_t;
 760 #           define _OFF_T_
 761 #       else
 762 #           ifdef off_t
 763 #               undef off_t
 764 #           endif
 765 #           define off_t long long
 766 #       endif
 767 #   endif
 768
 769 #   if defined( _MSC_VER )
 770 #       if !defined( _OFF_T_DEFINED )
 771 typedef __int64 off_t;
 772 #           define _OFF_T_DEFINED
 773 #       else
 774 #           define off_t __int64
 775 #       endif
 776 #   endif
 777
 778 #   if defined( __BORLANDC__ )
 779 #       undef off_t
 780 #       define off_t unsigned __int64
 781 #   endif
 782
 783 #   ifndef O_NONBLOCK
 784 #       define O_NONBLOCK 0
 785 #   endif
 786
 787 #   ifndef alloca
 788 #       define alloca _alloca
 789 #   endif
 790
 791     /* These two are not defined in mingw32 (bug?) */
 792 #   ifndef snprintf
 793 #       define snprintf _snprintf
 794 #   endif
 795 #   ifndef vsnprintf
 796 #       define vsnprintf _vsnprintf
 797 #   endif
 798
 799 #endif
 800
 801 /* lseek (defined in src/extras/libc.c) */
 802 #ifndef HAVE_LSEEK
 803 #   define lseek vlc_lseek
 804     VLC_EXPORT( off_t, vlc_lseek, ( int fildes, off_t offset, int whence ) );
 805 #elif !defined(__PLUGIN__)
 806 #   define vlc_lseek NULL
 807 #endif
 808
 809 /* vlc_wraptext (defined in src/extras/libc.c) */
 810 #define wraptext vlc_wraptext
 811 VLC_EXPORT( char *, vlc_wraptext, ( const char *, int, vlc_bool_t ) );
 812
 813 /*****************************************************************************
 814  * CPU capabilities
 815  *****************************************************************************/
 816 #define CPU_CAPABILITY_NONE    0
 817 #define CPU_CAPABILITY_486     (1<<0)
 818 #define CPU_CAPABILITY_586     (1<<1)
 819 #define CPU_CAPABILITY_PPRO    (1<<2)
 820 #define CPU_CAPABILITY_MMX     (1<<3)
 821 #define CPU_CAPABILITY_3DNOW   (1<<4)
 822 #define CPU_CAPABILITY_MMXEXT  (1<<5)
 823 #define CPU_CAPABILITY_SSE     (1<<6)
 824 #define CPU_CAPABILITY_SSE2    (1<<7)
 825 #define CPU_CAPABILITY_ALTIVEC (1<<16)
 826 #define CPU_CAPABILITY_FPU     (1<<31)
 827
 828 /*****************************************************************************
 829  * I18n stuff
 830  *****************************************************************************/
 831 VLC_EXPORT( char *, vlc_dgettext, ( const char *package, const char *msgid ) );
 832
 833 #if defined( ENABLE_NLS ) && \
 834      (defined(MODULE_NAME_IS_gnome)||defined(MODULE_NAME_IS_gnome_main)||\
 835       defined(MODULE_NAME_IS_gnome2)||defined(MODULE_NAME_IS_gnome2_main)||\
 836       defined(MODULE_NAME_IS_pda))
 837     /* Declare nothing: gnome.h will do it for us */
 838 #elif defined( ENABLE_NLS )
 839 #if defined( HAVE_INCLUDED_GETTEXT )
 840 #   include "libintl.h"
 841 #else
 842 #   include <libintl.h>
 843 #endif
 844 #   undef _
 845 #if defined( __BORLANDC__ )
 846 #define _(String) vlc_dgettext (PACKAGE_TARNAME, String)
 847 #else
 848 #   define _(String) vlc_dgettext (PACKAGE, String)
 849 #endif
 850 #   define N_(String) ((char*)(String))
 851 #else
 852 #   define _(String) ((char*)(String))
 853 #   define N_(String) ((char*)(String))
 854 #endif
 855
 856 /*****************************************************************************
 857  * Additional vlc stuff
 858  *****************************************************************************/
 859 #include "vlc_symbols.h"
 860 #include "os_specific.h"
 861 #include "vlc_messages.h"
 862 #include "variables.h"
 863 #include "vlc_objects.h"
 864 #include "vlc_threads_funcs.h"
 865 #include "mtime.h"
 866 #include "modules.h"
 867 #include "main.h"
 868 #include "configuration.h"
 869
 870 #if defined( __BORLANDC__ )
 871 #   undef PACKAGE
 872 #   define PACKAGE
 873 #endif
 874