b8a23f9e49
Fixed build output look in several Makefiles Fixed code to include autoconf.h Fixed code to use ROCKBOX_*_ENDIAN instead of previous attempts. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6421 a1c6a512-1295-4272-9138-f99709370657
262 lines
7 KiB
C
262 lines
7 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id
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*
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* Copyright (C) 2005 by Michiel van der Kolk
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <string.h>
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#include "file.h"
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#include "screens.h"
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#include "kernel.h"
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#include "tree.h"
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#include "lcd.h"
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#include "font.h"
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#include "settings.h"
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#include "icons.h"
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#include "status.h"
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#include "debug.h"
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#include "button.h"
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#include "menu.h"
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#include "main_menu.h"
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#include "mpeg.h"
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#include "misc.h"
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#include "ata.h"
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#include "wps.h"
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#include "filetypes.h"
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#include "applimits.h"
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#include "icons.h"
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#include "lang.h"
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#include "keyboard.h"
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#include "database.h"
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#include "autoconf.h"
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#undef NEW_DB_CODE
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#ifdef NEW_DB_CODE
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static char sbuf[1024];
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static struct file_entry fe;
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static int currentfeoffset, currentferecord;
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#endif
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int tagdb_fd = -1;
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int tagdb_initialized = 0;
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struct tagdb_header tagdbheader;
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int tagdb_init(void)
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{
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unsigned char* ptr = (char*)&tagdbheader.version;
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#ifdef ROCKBOX_LITTLE_ENDIAN
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int i, *p;
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#endif
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tagdb_fd = open(ROCKBOX_DIR "/rockbox.id3db", O_RDONLY);
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if (tagdb_fd < 0) {
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DEBUGF("Failed opening database\n");
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return -1;
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}
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read(tagdb_fd, &tagdbheader, 68);
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if (ptr[0] != 'R' ||
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ptr[1] != 'D' ||
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ptr[2] != 'B')
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{
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splash(HZ,true,"Not a rockbox ID3 database!");
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return -1;
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}
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#ifdef ROCKBOX_LITTLE_ENDIAN
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p=(int *)&tagdbheader;
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for(i=0;i<17;i++) {
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*p=BE32(*p);
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p++;
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}
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#endif
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if ( (tagdbheader.version&0xFF) != TAGDB_VERSION)
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{
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splash(HZ,true,"Unsupported database version %d!", tagdbheader.version&0xFF);
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return -1;
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}
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if (tagdbheader.songstart > tagdbheader.filestart ||
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tagdbheader.albumstart > tagdbheader.songstart ||
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tagdbheader.artiststart > tagdbheader.albumstart)
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{
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splash(HZ,true,"Corrupt ID3 database!");
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return -1;
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}
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tagdb_initialized = 1;
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return 0;
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}
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void tagdb_shutdown(void)
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{
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if (tagdb_fd >= 0)
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close(tagdb_fd);
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tagdb_initialized = 0;
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}
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/* NOTE: All these functions below are yet untested. */
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#ifdef NEW_DB_CODE
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/*** TagDatabase code ***/
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void writetagdbheader() {
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lseek(tagdb_fd,0,SEEK_SET);
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write(tagdb_fd, &tagdbheader, 68);
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}
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void getfentrybyoffset(int offset) {
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lseek(tagdb_fd,offset,SEEK_SET);
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fread(tagdb_fd,sbuf,tagdbheader.filelen);
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fread(tagdb_fd,&fe+sizeof(char *),12);
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fe.name=sbuf;
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currentfeoffset=offset;
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currentferecord=(offset-tagdbheader.filestart)/FILEENTRY_SIZE;
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}
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#define getfentrybyrecord(_x_) getfentrybyoffset(FILERECORD2OFFSET(_x_))
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int getfentrybyfilename(char *fname) {
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int min=0;
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int max=tagdbheader.filecount;
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while(min<max) {
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int mid=(min+max)/2;
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int compare;
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getfentrybyrecord(mid);
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compare=strcasecmp(fname,fe.name));
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if(compare==0)
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return 1;
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else if(compare<0)
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max=mid;
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else
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min=mid+1;
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}
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return 0;
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}
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int getfentrybyhash(int hash) {
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int min=0;
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for(min=0;min<tagdbheader.filecount;min++) {
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getfentrybyrecord(min);
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if(hash==fe.hash)
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return 1;
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}
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return 0;
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}
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int deletefentry(char *fname) {
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if(!getfentrybyfilename(fname))
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return 0;
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int restrecord = currentferecord+1;
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if(currentferecord!=tagdbheader.filecount) /* file is not last entry */
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shiftdown(FILERECORD2OFFSET(currentferecord),FILERECORD2OFFSET(restrecord),(tagdbheader.filecount-restrecord)*FILEENTRY_SIZE);
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ftruncate(tagdb_fd,lseek(tagdb_fd,0,SEEK_END)-FILEENTRY_SIZE);
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tagdbheader.filecount--;
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update_fentryoffsets(restrecord,tagdbheader.filecount);
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writetagdbheader();
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return 1;
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}
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int update_fentryoffsets(int start, int end) {
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int i;
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for(int i=start;i<end;i++) {
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getfentrybyrecord(i);
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if(fe.songentry!=-1) {
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int p;
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lseek(tagdb_fd,fe.songentry+tagdbheader.songlen+8,SEEK_SET);
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read(tagdb_fd,&p,sizeof(int));
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if(p!=currentfeoffset) {
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p=currentfeoffset;
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lseek(tagdb_fd,fe.songentry+tagdbheader.songlen+8,SEEK_SET);
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write(tagdb_fd,&p,sizeof(int));
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}
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}
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if(fe.rundbentry!=-1) {
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splash(HZ*2, "o.o.. found a rundbentry? o.o; didn't update it, update the code o.o;");
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}
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}
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}
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int tagdb_shiftdown(int targetoffset, int startingoffset, int bytes) {
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int amount;
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if(targetoffset>=startingoffset) {
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splash(HZ*2,"Woah. no beeping way. (tagdb_shiftdown)");
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return 0;
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}
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lseek(tagdb_fd,startingoffset,SEEK_SET);
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while(amount=read(tagdb_fd,sbuf,bytes > 1024 ? 1024 : bytes)) {
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int written;
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startingoffset+=amount;
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lseek(tagdb_fd,targetoffset,SEEK_SET);
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written=write(tagdb_fd,sbuf,amount);
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targetoffset+=written;
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if(amount!=written) {
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splash(HZ*2,"Something went very wrong. expect database corruption. (tagdb_shiftdown)");
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return 0;
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}
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lseek(tagdb_fd,startingoffset,SEEK_SET);
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bytes-=amount;
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}
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return 1;
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}
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int tagdb_shiftup(int targetoffset, int startingoffset, int bytes) {
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int amount,amount2;
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int readpos,writepos,filelen;
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int ok;
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if(targetoffset<=startingoffset) {
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splash(HZ*2,"Um. no. (tagdb_shiftup)");
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return 0;
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}
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filelen=lseek(tagdb_fd,0,SEEK_END);
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readpos=startingoffset+bytes;
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do {
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amount=bytes>1024 ? 1024 : bytes;
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readpos-=amount;
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writepos=readpos+targetoffset-startingoffset;
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lseek(tagdb_fd,readpos,SEEK_SET);
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amount2=read(tagdb_fd,sbuf,amount);
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if(amount2!=amount) {
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splash(HZ*2,"Something went very wrong. expect database corruption. (tagdb_shiftup)");
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return 0;
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}
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lseek(tagdb_fd,writepos,SEEK_SET);
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amount=write(tagdb_fd,sbuf,amount2);
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if(amount2!=amount) {
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splash(HZ*2,"Something went very wrong. expect database corruption. (tagdb_shiftup)");
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return 0;
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}
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bytes-=amount;
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} while (amount>0);
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if(bytes==0)
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return 1;
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else {
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splash(HZ*2,"Something went wrong, >.>;; (tagdb_shiftup)");
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return 0;
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}
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}
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/*** end TagDatabase code ***/
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/*** RuntimeDatabase code ***/
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/*** end RuntimeDatabase code ***/
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#endif
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