Initial commit of the PictureFlow plugin, a nice visualization for album covers.

Original code by Ariya Hidayat. Rockbox port by Jonas Hurrelmann and a few tweaks by me.
On the first startup the database is scanned and album art is searched for each album. This process will take some time (dircache enabled and/or database in RAM speed it up, and it is possible to abort by pressing MENU), but the results are cached and the next startups will be very quick.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15900 a1c6a512-1295-4272-9138-f99709370657

apps/plugin.c

@@ -532,6 +532,38 @@ static const struct plugin_api rockbox_api = {
     remote_backlight_set_timeout_plugged,
 #endif
 #endif /* HAVE_REMOTE_LCD */
+
+#if (CONFIG_CODEC == SWCODEC)
+    bufopen,
+    bufalloc,
+    bufclose,
+    bufseek,
+    bufadvance,
+    bufread,
+    bufgetdata,
+    bufgettail,
+    bufcuttail,
+
+    buf_get_offset,
+    buf_handle_offset,
+    buf_request_buffer_handle,
+    buf_set_base_handle,
+    buf_used,
+#endif
+
+#ifdef HAVE_TAGCACHE
+    tagcache_search,
+    tagcache_search_set_uniqbuf,
+    tagcache_search_add_filter,
+    tagcache_get_next,
+    tagcache_retrieve,
+    tagcache_search_finish,
+#endif
+
+#ifdef HAVE_ALBUMART
+    find_albumart,
+    search_albumart_files,
+#endif
 };
 
 int plugin_load(const char* plugin, void* parameter)

apps/plugin.h

@@ -78,6 +78,9 @@
 #include "list.h"
 #include "tree.h"
 #include "color_picker.h"
+#include "buffering.h"
+#include "tagcache.h"
+#include "albumart.h"
 
 #ifdef HAVE_REMOTE_LCD
 #include "lcd-remote.h"
@@ -655,6 +658,42 @@ struct plugin_api {
     void (*remote_backlight_set_timeout_plugged)(int index);
 #endif
 #endif /* HAVE_REMOTE_LCD */
+
+#if (CONFIG_CODEC == SWCODEC)
+    int (*bufopen)(const char *file, size_t offset, enum data_type type);
+    int (*bufalloc)(const void *src, size_t size, enum data_type type);
+    bool (*bufclose)(int handle_id);
+    int (*bufseek)(int handle_id, size_t newpos);
+    int (*bufadvance)(int handle_id, off_t offset);
+    ssize_t (*bufread)(int handle_id, size_t size, void *dest);
+    ssize_t (*bufgetdata)(int handle_id, size_t size, void **data);
+    ssize_t (*bufgettail)(int handle_id, size_t size, void **data);
+    ssize_t (*bufcuttail)(int handle_id, size_t size);
+
+    ssize_t (*buf_get_offset)(int handle_id, void *ptr);
+    ssize_t (*buf_handle_offset)(int handle_id);
+    void (*buf_request_buffer_handle)(int handle_id);
+    void (*buf_set_base_handle)(int handle_id);
+    size_t (*buf_used)(void);
+#endif
+
+#ifdef HAVE_TAGCACHE
+    bool (*tagcache_search)(struct tagcache_search *tcs, int tag);
+    void (*tagcache_search_set_uniqbuf)(struct tagcache_search *tcs,
+           void *buffer, long length);
+    bool (*tagcache_search_add_filter)(struct tagcache_search *tcs,
+                                    int tag, int seek);
+    bool (*tagcache_get_next)(struct tagcache_search *tcs);
+    bool (*tagcache_retrieve)(struct tagcache_search *tcs, int idxid,
+                           int tag, char *buf, long size);
+    void (*tagcache_search_finish)(struct tagcache_search *tcs);
+#endif
+
+#ifdef HAVE_ALBUMART
+    bool (*find_albumart)(const struct mp3entry *id3, char *buf, int buflen);
+    bool (*search_albumart_files)(const struct mp3entry *id3, const char *size_string,
+                                  char *buf, int buflen);
+#endif
 };
 
 /* plugin header */

apps/plugins/CATEGORIES

@@ -47,6 +47,7 @@ mpegplayer,viewers
 nim,games
 oscilloscope,demos
 pacbox,games
+pictureflow,demos
 plasma,demos
 pong,games
 properties,viewers

apps/plugins/SOURCES

@@ -136,6 +136,10 @@ splitedit.c
 matrix.c
 #endif
 
+#if defined(HAVE_LCD_COLOR) && defined(HAVE_ALBUMART) && defined(HAVE_TAGCACHE)
+pictureflow.c
+#endif
+
 /* Platform-specific plugins */
 #if defined(IRIVER_H100_SERIES) || defined(IRIVER_H300_SERIES)
 iriverify.c

apps/plugins/bitmaps/native/SOURCES

@@ -510,4 +510,10 @@ matrix_bold.bmp
 matrix_normal.bmp
 #endif
 
+/* pictureflow */
+#if defined(HAVE_LCD_COLOR) && defined(HAVE_ALBUMART) && defined(HAVE_TAGCACHE)
+pictureflow_logo.bmp
+pictureflow_emptyslide.bmp
+#endif
+
 #endif /* HAVE_LCD_BITMAP */

apps/recorder/albumart.c

@@ -125,7 +125,7 @@ static void fix_path_part(char* path, int offset, int count)
  * If a matching bitmap is found, its filename is stored in buf.
  * Return value is true if a bitmap was found, false otherwise.
  */
-static bool search_files(const struct mp3entry *id3, const char *size_string,
+bool search_albumart_files(const struct mp3entry *id3, const char *size_string,
                            char *buf, int buflen)
 {
     char path[MAX_PATH + 1];
@@ -228,12 +228,12 @@ bool find_albumart(const struct mp3entry *id3, char *buf, int buflen)
              data->albumart_max_width, data->albumart_max_height);
 
     /* First we look for a bitmap of the right size */
-    if (search_files(id3, size_string, buf, buflen))
+    if (search_albumart_files(id3, size_string, buf, buflen))
         return true;
 
     /* Then we look for generic bitmaps */
     *size_string = 0;
-    return search_files(id3, size_string, buf, buflen);
+    return search_albumart_files(id3, size_string, buf, buflen);
 }
 
 /* Draw the album art bitmap from the given handle ID onto the given WPS.

apps/recorder/albumart.h

@@ -35,6 +35,9 @@ bool find_albumart(const struct mp3entry *id3, char *buf, int buflen);
    Call with clear = true to clear the bitmap instead of drawing it. */
 void draw_album_art(struct gui_wps *gwps, int handle_id, bool clear);
 
+bool search_albumart_files(const struct mp3entry *id3, const char *size_string,
+                           char *buf, int buflen);
+
 #endif /* HAVE_ALBUMART */
 
 #endif /* _ALBUMART_H_ */

docs/CREDITS

@@ -352,6 +352,8 @@ Chris Allegretta
 Alastair S
 Gerritt Gonzales
 Martin Crkovský
+Ariya Hidayat
+Jonas Hurrelmann
 
 The libmad team
 The wavpack team