git.sesse.net Git - vlc/blob - plugins/filter/filter_common.h

   1 /*****************************************************************************
   2  * filter_common.h: Common filter functions
   3  *****************************************************************************
   4  * Copyright (C) 2001 VideoLAN
   5  * $Id: filter_common.h,v 1.2 2002/01/04 14:01:34 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_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