Added ID3 database support. Still very early.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5575 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 509 insertions, 0 deletions

diff --git a/apps/filetree.c b/apps/filetree.c
new file mode 100644
index 0000000000..98d59b9e9a
--- /dev/null
+++ b/apps/filetree.c
@@ -0,0 +1,509 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Björn Stenberg
+ *
+ * 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.
+ *
+ ****************************************************************************/
+#include <stdlib.h>
+#include <file.h>
+#include <dir.h>
+#include <string.h>
+#include <kernel.h>
+#include <lcd.h>
+#include <debug.h>
+#include <font.h>
+#include "bookmark.h"
+#include "tree.h"
+#include "settings.h"
+#include "filetypes.h"
+#include "talk.h"
+#include "playlist.h"
+#include "wps-display.h"
+#include "lang.h"
+#include "language.h"
+#include "screens.h"
+#include "plugin.h"
+#include "rolo.h"
+
+static int boot_size = 0;
+static int boot_cluster;
+extern bool boot_changed;
+
+int ft_build_playlist(struct tree_context* c, int start_index)
+{
+    int i;
+    int start=start_index;
+
+    struct entry *dircache = c->dircache;
+
+    for(i = 0;i < c->filesindir;i++)
+    {
+        if((dircache[i].attr & TREE_ATTR_MASK) == TREE_ATTR_MPA)
+        {
+            DEBUGF("Adding %s\n", dircache[i].name);
+            if (playlist_add(dircache[i].name) < 0)
+                break;
+        }
+        else
+        {
+            /* Adjust the start index when se skip non-MP3 entries */
+            if(i < start)
+                start_index--;
+        }
+    }
+
+    return start_index;
+}
+
+/* walk a directory and check all dircache entries if a .talk file exists */
+static void check_file_thumbnails(struct tree_context* c)
+{
+    int i;
+    struct dirent *entry;
+    struct entry* dircache = c->dircache;
+    DIR *dir;
+    
+    dir = opendir(c->currdir);
+    if(!dir)
+        return;
+
+    for (i=0; i < c->filesindir; i++) /* mark all files as non talking, except the .talk ones */
+    {
+        if (dircache[i].attr & ATTR_DIRECTORY)
+            continue; /* we're not touching directories */
+
+        if (strcasecmp(file_thumbnail_ext,
+            &dircache[i].name[strlen(dircache[i].name)
+                              - strlen(file_thumbnail_ext)]))
+        {   /* no .talk file */
+            dircache[i].attr &= ~TREE_ATTR_THUMBNAIL; /* clear */
+        }
+        else
+        {   /* .talk file, we later let them speak themselves */
+            dircache[i].attr |= TREE_ATTR_THUMBNAIL; /* set */
+        }
+    }
+    
+    while((entry = readdir(dir)) != 0) /* walk directory */
+    {
+        int ext_pos;
+
+        ext_pos = strlen(entry->d_name) - strlen(file_thumbnail_ext);
+        if (ext_pos <= 0 /* too short to carry ".talk" */
+            || (entry->attribute & ATTR_DIRECTORY) /* no file */
+            || strcasecmp(&entry->d_name[ext_pos], file_thumbnail_ext))
+        {   /* or doesn't end with ".talk", no candidate */
+            continue; 
+        }
+        
+        /* terminate the (disposable) name in dir buffer,
+           this truncates off the ".talk" without needing an extra buffer */
+        entry->d_name[ext_pos] = '\0';
+        
+        /* search corresponding file in dir cache */
+        for (i=0; i < c->filesindir; i++)
+        {
+            if (!strcasecmp(dircache[i].name, entry->d_name))
+            {   /* match */
+                dircache[i].attr |= TREE_ATTR_THUMBNAIL; /* set the flag */
+                break; /* exit search loop, because we found it */
+            }
+        }
+    }
+    closedir(dir);
+}
+
+/* support function for qsort() */
+static int compare(const void* p1, const void* p2)
+{
+    struct entry* e1 = (struct entry*)p1;
+    struct entry* e2 = (struct entry*)p2;
+    int criteria;
+
+    if (e1->attr & ATTR_DIRECTORY && e2->attr & ATTR_DIRECTORY)
+    {   /* two directories */
+        criteria = global_settings.sort_dir;
+    }
+    else if (!(e1->attr & ATTR_DIRECTORY) && !(e2->attr & ATTR_DIRECTORY))
+    {   /* two files */
+        criteria = global_settings.sort_file;
+    }
+    else /* dir and file, dir goes first */
+        return ( e2->attr & ATTR_DIRECTORY ) - ( e1->attr & ATTR_DIRECTORY );
+
+    switch(criteria)
+    {
+        case 3: /* sort type */
+        {
+            int t1 = e1->attr & TREE_ATTR_MASK;
+            int t2 = e2->attr & TREE_ATTR_MASK;
+
+            if (!t1) /* unknown type */
+                t1 = 0x7FFFFFFF; /* gets a high number, to sort after known */
+            if (!t2) /* unknown type */
+                t2 = 0x7FFFFFFF; /* gets a high number, to sort after known */
+
+            if (t1 - t2) /* if different */
+                return t1 - t2;
+            /* else fall through to alphabetical sorting */
+        }
+        case 0: /* sort alphabetically */
+            if (global_settings.sort_case)
+                return strncmp(e1->name, e2->name, MAX_PATH);
+            else
+                return strncasecmp(e1->name, e2->name, MAX_PATH);
+
+        case 1: /* sort date */
+            return e1->time_write - e2->time_write;
+
+        case 2: /* sort date, newest first */
+            return e2->time_write - e1->time_write;
+    }
+    return 0; /* never reached */
+}
+
+/* load and sort directory into dircache.  returns NULL on failure. */
+int ft_load(struct tree_context* c, bool *buffer_full)
+{
+    extern char lastdir[]; /* from tree.c */
+    int i;
+    DIR *dir = opendir(c->currdir);
+    if(!dir)
+        return -1; /* not a directory */
+
+    int name_buffer_used = 0;
+    c->dirsindir = 0;
+    if (buffer_full)
+        *buffer_full = false;
+
+    for ( i=0; i < global_settings.max_files_in_dir; i++ ) {
+        int len;
+        struct dirent *entry = readdir(dir);
+        struct entry* dptr = (struct entry*)(c->dircache + i * sizeof(struct entry));
+        if (!entry)
+            break;
+
+        len = strlen(entry->d_name);
+
+        /* skip directories . and .. */
+        if ((entry->attribute & ATTR_DIRECTORY) &&
+            (((len == 1) &&
+            (!strncmp(entry->d_name, ".", 1))) ||
+            ((len == 2) &&
+            (!strncmp(entry->d_name, "..", 2))))) {
+            i--;
+            continue;
+        }
+
+        /* Skip FAT volume ID */
+        if (entry->attribute & ATTR_VOLUME_ID) {
+            i--;
+            continue;
+        }
+
+        /* filter out dotfiles and hidden files */
+        if (*c->dirfilter != SHOW_ALL &&
+            ((entry->d_name[0]=='.') ||
+            (entry->attribute & ATTR_HIDDEN))) {
+            i--;
+            continue;
+        }
+
+        dptr->attr = entry->attribute;
+
+        /* check for known file types */
+        if ( !(dptr->attr & ATTR_DIRECTORY) && (len > 4) )
+           dptr->attr |= filetype_get_attr(entry->d_name);
+
+        /* memorize/compare details about the boot file */
+        if ((c->currdir[1] == 0) && !strcasecmp(entry->d_name, BOOTFILE)) {
+            if (boot_size) {
+                if ((entry->size != boot_size) ||
+                    (entry->startcluster != boot_cluster))
+                    boot_changed = true;
+            }
+            boot_size = entry->size;
+            boot_cluster = entry->startcluster;
+        }
+
+        /* filter out non-visible files */
+        if (!(dptr->attr & ATTR_DIRECTORY) && (
+            (*c->dirfilter == SHOW_PLAYLIST &&
+             (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_M3U) ||
+            ((*c->dirfilter == SHOW_MUSIC &&
+             (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_MPA) &&
+             (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_M3U) ||
+            (*c->dirfilter == SHOW_SUPPORTED && !filetype_supported(dptr->attr)) ||
+            (*c->dirfilter == SHOW_WPS && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_WPS) ||
+            (*c->dirfilter == SHOW_CFG && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_CFG) ||
+            (*c->dirfilter == SHOW_LNG && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_LNG) ||
+            (*c->dirfilter == SHOW_MOD && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_MOD) ||
+            (*c->dirfilter == SHOW_FONT && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_FONT) ||
+            (*c->dirfilter == SHOW_PLUGINS && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_ROCK)))
+        {
+            i--;
+            continue;
+        }
+
+        if (len > c->name_buffer_size - name_buffer_used - 1) {
+            /* Tell the world that we ran out of buffer space */
+            if (buffer_full)
+                *buffer_full = true;
+            break;
+        }
+        dptr->name = &c->name_buffer[name_buffer_used];
+        dptr->time_write = entry->wrtdate<<16 | entry->wrttime; /* in one # */
+        strcpy(dptr->name,entry->d_name);
+        name_buffer_used += len + 1;
+
+        if (dptr->attr & ATTR_DIRECTORY) /* count the remaining dirs */
+            c->dirsindir++; 
+    }
+    c->filesindir = i;
+    closedir(dir);
+
+    strcpy(lastdir, c->currdir);
+    
+    qsort(c->dircache,i,sizeof(struct entry),compare);
+
+    /* If thumbnail talking is enabled, make an extra run to mark files with 
+       associated thumbnails, so we don't do unsuccessful spinups later. */
+    if (global_settings.talk_file == 3)
+        check_file_thumbnails(c); /* map .talk to ours */
+
+    return 0;
+}
+
+int ft_enter(struct tree_context* c)
+{
+    int rc = 0;
+    char buf[MAX_PATH];
+    struct entry *dircache = c->dircache;
+    struct entry* file = &dircache[c->dircursor + c->dirstart];
+    bool reload_root = false;
+    bool reload_dir = false;
+    bool start_wps = false;
+    bool exit_func = false;
+
+    if (c->currdir[1])
+        snprintf(buf,sizeof(buf),"%s/%s",c->currdir, file->name);
+    else
+        snprintf(buf,sizeof(buf),"/%s",file->name);
+
+    if (file->attr & ATTR_DIRECTORY) {
+        memcpy(c->currdir, buf, sizeof(c->currdir));
+        if ( c->dirlevel < MAX_DIR_LEVELS ) {
+            c->dirpos[c->dirlevel] = c->dirstart;
+            c->cursorpos[c->dirlevel] = c->dircursor;
+        }
+        c->dirlevel++;
+        c->dircursor=0;
+        c->dirstart=0;
+    }
+    else {
+        int seed = current_tick;
+        bool play = false;
+        int start_index=0;
+
+        lcd_stop_scroll();
+        switch ( file->attr & TREE_ATTR_MASK ) {
+            case TREE_ATTR_M3U:
+                if (bookmark_autoload(buf))
+                    break;
+
+                if (playlist_create(c->currdir, file->name) != -1)
+                {
+                    if (global_settings.playlist_shuffle)
+                        playlist_shuffle(seed, -1);
+                    start_index = 0;
+                    playlist_start(start_index,0);
+                    play = true;
+                }
+                break;
+
+            case TREE_ATTR_MPA:
+                if (bookmark_autoload(c->currdir))
+                    break;
+
+                if (playlist_create(c->currdir, NULL) != -1)
+                {
+                    start_index =
+                        ft_build_playlist(c, c->dircursor + c->dirstart);
+                    if (global_settings.playlist_shuffle)
+                    {
+                        start_index = playlist_shuffle(seed, start_index);
+
+                        /* when shuffling dir.: play all files
+                           even if the file selected by user is
+                           not the first one */
+                        if (!global_settings.play_selected)
+                            start_index = 0;
+                    }
+
+                    playlist_start(start_index, 0);
+                    play = true;
+                }
+                break;
+
+                /* wps config file */
+            case TREE_ATTR_WPS:
+                wps_load(buf,true);
+                set_file(buf, global_settings.wps_file,
+                         MAX_FILENAME);
+                break;
+
+            case TREE_ATTR_CFG:
+                if (!settings_load_config(buf))
+                    break;
+                lcd_clear_display();
+                lcd_puts(0,0,str(LANG_SETTINGS_LOADED1));
+                lcd_puts(0,1,str(LANG_SETTINGS_LOADED2));
+#ifdef HAVE_LCD_BITMAP
+                lcd_update();
+#endif
+                sleep(HZ/2);
+                break;
+
+            case TREE_ATTR_BMARK:
+                bookmark_load(buf, false);
+                reload_dir = true;
+                break;
+
+            case TREE_ATTR_LNG:
+                if(!lang_load(buf)) {
+                    extern bool language_changed; /* from settings_menu.c */
+
+                    set_file(buf, global_settings.lang_file,
+                             MAX_FILENAME);
+                    talk_init(); /* use voice of same language */
+                    splash(HZ, true, str(LANG_LANGUAGE_LOADED));
+                    language_changed = true;
+                }
+                break;
+
+#ifdef HAVE_LCD_BITMAP
+            case TREE_ATTR_FONT:
+                font_load(buf);
+                set_file(buf, global_settings.font_file, MAX_FILENAME);
+                break;
+#endif
+
+#ifndef SIMULATOR
+                /* firmware file */
+            case TREE_ATTR_MOD:
+                rolo_load(buf);
+                break;
+#endif
+
+                /* plugin file */
+            case TREE_ATTR_ROCK:
+                if (plugin_load(buf,NULL) == PLUGIN_USB_CONNECTED)
+                {
+                    if(*c->dirfilter > NUM_FILTER_MODES)
+                        /* leave sub-browsers after usb, doing
+                           otherwise might be confusing to the user */
+                        exit_func = true;
+                    else
+                        reload_root = true;
+                }
+                break;
+
+            default:
+            {
+                char* plugin = filetype_get_plugin(file);
+                if (plugin)
+                {
+                    if (plugin_load(plugin,buf) == PLUGIN_USB_CONNECTED)
+                        reload_root = true;
+                }
+                break;
+            }
+        }
+
+        if ( play ) {
+            if ( global_settings.resume ) {
+                /* the resume_index must always be the index in the
+                   shuffled list in case shuffle is enabled */
+                global_settings.resume_index = start_index;
+                global_settings.resume_offset = 0;
+                settings_save();
+            }
+
+            start_wps = true;
+        }
+        else {
+            if (*c->dirfilter > NUM_FILTER_MODES &&
+                *c->dirfilter != SHOW_FONT &&
+                *c->dirfilter != SHOW_PLUGINS)
+            {
+                exit_func = true;
+            }
+        }
+    }
+
+    if (reload_dir)
+        rc = 1;
+    if (reload_root)
+        rc = 2;
+    if (start_wps)
+        rc = 3;
+    if (exit_func)
+        rc = 4;
+
+    return rc;
+}
+
+int ft_exit(struct tree_context* c)
+{
+    extern char lastfile[]; /* from tree.c */
+    char buf[MAX_PATH];
+    int rc = 0;
+    bool exit_func = false;
+
+    int i = strlen(c->currdir);
+    if (i>1) {
+        while (c->currdir[i-1]!='/')
+            i--;
+        strcpy(buf,&c->currdir[i]);
+        if (i==1)
+            c->currdir[i]=0;
+        else
+            c->currdir[i-1]=0;
+
+        if (*c->dirfilter > NUM_FILTER_MODES && c->dirlevel < 1)
+            exit_func = true;
+
+        c->dirlevel--;
+        if ( c->dirlevel < MAX_DIR_LEVELS ) {
+            c->dirstart = c->dirpos[c->dirlevel];
+            c->dircursor = c->cursorpos[c->dirlevel];
+        }
+        else
+            c->dirstart = c->dircursor = 0;
+
+        if (c->dirstart == -1)
+            strcpy(lastfile, buf);
+    }
+    else
+    {
+        if (*c->dirfilter > NUM_FILTER_MODES && c->dirlevel < 1)
+            exit_func = true;
+    }
+
+    if (exit_func)
+        rc = 4;
+
+    return rc;
+}