rockbox/apps/database.h
Michiel Van Der Kolk 67772bbf1b More database maintenance functions..
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6364 a1c6a512-1295-4272-9138-f99709370657
2005-04-27 11:49:51 +00:00

98 lines
2.6 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Michiel van der Kolk
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef DATABASE_H
#define DATABASE_H
/* workaround for cygwin not defining endian macros */
#if !defined(LITTLE_ENDIAN) && !defined(BIG_ENDIAN) && defined(_X86_)
#define LITTLE_ENDIAN
#endif
#ifdef LITTLE_ENDIAN
#define BE32(_x_) (((_x_ & 0xff000000) >> 24) | \
((_x_ & 0x00ff0000) >> 8) | \
((_x_ & 0x0000ff00) << 8) | \
((_x_ & 0x000000ff) << 24))
#else
#define BE32(_x_) _x_
#endif
#define SONGENTRY_SIZE (tagdbheader.songlen+12+tagdbheader.genrelen+4)
#define FILEENTRY_SIZE (tagdbheader.filelen+12)
#define ALBUMENTRY_SIZE (tagdbheader.albumlen+4+tagdbheader.songarraylen*4)
#define ARTISTENTRY_SIZE (tagdbheader.artistlen+tagdbheader.albumarraylen*4)
#define FILERECORD2OFFSET(_x_) (tagdbheader.filestart + _x_ * FILEENTRY_SIZE)
extern int tagdb_initialized;
struct tagdb_header {
int version;
int artiststart;
int albumstart;
int songstart;
int filestart;
int artistcount;
int albumcount;
int songcount;
int filecount;
int artistlen;
int albumlen;
int songlen;
int genrelen;
int filelen;
int songarraylen;
int albumarraylen;
int rundbdirty;
};
struct file_entry {
char *name;
int hash;
int songentry;
int rundbentry;
};
extern struct tagdb_header tagdbheader;
extern int tagdb_fd;
int tagdb_init(void);
void tagdb_shutdown(void);
#define TAGDB_VERSION 2
struct rundb_header {
int version;
int entrycount;
};
struct rundb_entry {
int fileentry;
int hash;
short rating;
short voladjust;
int playcount;
int lastplayed;
};
extern struct rundb_header rundbheader;
#define RUNDB_VERSION 1
#endif