Big round of fixes in the aout3.
[vlc.git] / modules / video_filter / filter_common.h
1 /*****************************************************************************
2  * filter_common.h: Common filter functions
3  *****************************************************************************
4  * Copyright (C) 2001 VideoLAN
5  * $Id: filter_common.h,v 1.1 2002/08/04 17:23:43 sam Exp $
6  *
7  * Authors: Samuel Hocevar <sam@zoy.org>
8  *
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.
13  * 
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.
18  *
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  *****************************************************************************/
23
24 #define ALLOCATE_DIRECTBUFFERS( i_max ) \
25     /* Try to initialize i_max direct buffers */                              \
26     while( I_OUTPUTPICTURES < ( i_max ) )                                     \
27     {                                                                         \
28         p_pic = NULL;                                                         \
29                                                                               \
30         /* Find an empty picture slot */                                      \
31         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )          \
32         {                                                                     \
33             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )       \
34             {                                                                 \
35                 p_pic = p_vout->p_picture + i_index;                          \
36                 break;                                                        \
37             }                                                                 \
38         }                                                                     \
39                                                                               \
40         if( p_pic == NULL )                                                   \
41         {                                                                     \
42             break;                                                            \
43         }                                                                     \
44                                                                               \
45         /* Allocate the picture */                                            \
46         vout_AllocatePicture( p_vout, p_pic,                                  \
47                               p_vout->output.i_width,                         \
48                               p_vout->output.i_height,                        \
49                               p_vout->output.i_chroma );                      \
50                                                                               \
51         if( !p_pic->i_planes )                                                \
52         {                                                                     \
53             break;                                                            \
54         }                                                                     \
55                                                                               \
56         p_pic->i_status = DESTROYED_PICTURE;                                  \
57         p_pic->i_type   = DIRECT_PICTURE;                                     \
58                                                                               \
59         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;                         \
60                                                                               \
61         I_OUTPUTPICTURES++;                                                   \
62     }                                                                         \
63