1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2003 VideoLAN
5 * $Id: vlc_block.h,v 1.1 2003/08/23 22:49:50 fenrir Exp $
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
31 typedef struct block_sys_t block_sys_t;
37 vlc_bool_t b_frame_display;
38 vlc_bool_t b_frame_start;
45 void (*pf_release) ( block_t * );
47 block_t *(*pf_modify) ( block_t *, vlc_bool_t );
48 block_t *(*pf_duplicate) ( block_t * );
49 block_t *(*pf_realloc) ( block_t *, int i_prebody, int i_body );
51 /* Following fields are private, user should never touch it */
52 /* XXX never touch that OK !!! the first that access that will
53 * have cvs account removed ;) XXX */
55 /* It's an object that should be valid as long as the block_t is valid */
56 /* It should become a true block manager to reduce malloc/free */
57 vlc_object_t *p_manager;
59 /* private member for block_New, .... manager */
65 vlc_mutex_t lock; /* fifo data lock */
66 vlc_cond_t wait; /* fifo data conditional variable */
76 #define block_New( a, b ) __block_New( VLC_OBJECT(a), b )
77 VLC_EXPORT( block_t *, __block_New, ( vlc_object_t *, int ) );
78 static inline void block_Release( block_t *p_block )
80 p_block->pf_release( p_block );
82 static inline block_t *block_Modify( block_t *p_block, vlc_bool_t b_willmodify )
84 return p_block->pf_modify( p_block, b_willmodify );
86 static inline block_t *block_Duplicate( block_t *p_block )
88 return p_block->pf_duplicate( p_block );
90 static inline block_t *block_Realloc( block_t *p_block, int i_pre, int i_body )
92 return p_block->pf_realloc( p_block, i_pre, i_body );
94 VLC_EXPORT( void, block_ChainAppend, ( block_t **, block_t * ) );
95 VLC_EXPORT( void, block_ChainRelease, ( block_t * ) );
96 VLC_EXPORT( int, block_ChainExtract, ( block_t *, void *, int ) );
97 VLC_EXPORT( block_t *, block_ChainGather, ( block_t * ) );
99 /* a bit special, only for new/other block manager */
100 VLC_EXPORT( block_t *, block_NewEmpty, ( void ) );
102 #define block_FifoNew( a ) __block_FifoNew( VLC_OBJECT(a) )
103 VLC_EXPORT( block_fifo_t *, __block_FifoNew, ( vlc_object_t * ) );
104 VLC_EXPORT( void, block_FifoRelease, ( block_fifo_t * ) );
105 VLC_EXPORT( void, block_FifoEmpty, ( block_fifo_t * ) );
106 VLC_EXPORT( int, block_FifoPut, ( block_fifo_t *, block_t * ) );
107 VLC_EXPORT( block_t *, block_FifoGet, ( block_fifo_t * ) );
108 VLC_EXPORT( block_t *, block_FifoGetFrame, ( block_fifo_t * ) );
109 VLC_EXPORT( block_t *, block_FifoShow, ( block_fifo_t * ) );