apps/database.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 by Michiel van der Kolk
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #ifndef DATABASE_H
  20 #define DATABASE_H
  21
  22 #ifdef ROCKBOX_LITTLE_ENDIAN
  23 #define BE32(_x_) (((_x_ & 0xff000000) >> 24) | \
  24                                    ((_x_ & 0x00ff0000) >> 8) | \
  25                                    ((_x_ & 0x0000ff00) << 8) | \
  26                                    ((_x_ & 0x000000ff) << 24))
  27 #define BE16(_x_) ( ((_x_&0xFF00) >> 8)|((_x_&0xFF)<<8))
  28 #else
  29 #define BE32(_x_) _x_
  30 #define BE16(_x_) _x_
  31 #endif
  32
  33 #define SONGENTRY_SIZE    (tagdbheader.songlen+12+tagdbheader.genrelen+4)
  34 #define FILEENTRY_SIZE    (tagdbheader.filelen+12)
  35 #define ALBUMENTRY_SIZE   (tagdbheader.albumlen+4+tagdbheader.songarraylen*4)
  36 #define ARTISTENTRY_SIZE  (tagdbheader.artistlen+tagdbheader.albumarraylen*4)
  37
  38 #define FILERECORD2OFFSET(_x_) (tagdbheader.filestart + _x_ * FILEENTRY_SIZE)
  39
  40 extern int tagdb_initialized;
  41
  42 struct tagdb_header {
  43         int version;
  44         int artiststart;
  45         int albumstart;
  46         int songstart;
  47         int filestart;
  48         int artistcount;
  49         int albumcount;
  50         int songcount;
  51         int filecount;
  52         int artistlen;
  53         int albumlen;
  54         int songlen;
  55         int genrelen;
  56         int filelen;
  57         int songarraylen;
  58         int albumarraylen;
  59         int rundbdirty;
  60 };
  61
  62 struct file_entry {
  63         char *name;
  64         int hash;
  65         int songentry;
  66         int rundbentry;
  67 };
  68
  69 extern struct tagdb_header tagdbheader;
  70 extern int tagdb_fd;
  71
  72 int tagdb_init(void);
  73 void tagdb_shutdown(void);
  74
  75 #define TAGDB_VERSION 2
  76
  77 struct rundb_header {
  78         int version;
  79         int entrycount;
  80 };
  81
  82 struct rundb_entry {
  83         int fileentry;
  84         int hash;
  85         short rating;
  86         short voladjust;
  87         int playcount;
  88         int lastplayed;
  89 };
  90
  91 extern struct rundb_header rundbheader;
  92
  93 #define RUNDB_VERSION 1
  94
  95 #endif