Rework albumart buffering internally to allow for mutliple albumart sizes.

Playback now has a few albumart slots. Anything (most importantly: skins)  can obtain such a slot.
The slot has fields for the size which is passed to bufopen then to image_load to buffer the albumart with the proper size.
Currently there's 1 slot. We can increase it for remotes if we want. Custom statusbar will increase it.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23209 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 2 insertions, 1 deletions

diff --git a/apps/plugin.h b/apps/plugin.h
index b060104373..41375a6adb 100644
--- a/apps/plugin.h
+++ b/apps/plugin.h
@@ -789,7 +789,8 @@ struct plugin_api {
 
 #if (CONFIG_CODEC == SWCODEC)
     /* buffering API */
-    int (*bufopen)(const char *file, size_t offset, enum data_type type);
+    int (*bufopen)(const char *file, size_t offset, enum data_type type,
+                   void *user_data);
     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);