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/buffering.h b/apps/buffering.h
index d0e2dd797f..6e17b65d8c 100644
--- a/apps/buffering.h
+++ b/apps/buffering.h
@@ -74,7 +74,8 @@ bool buffering_reset(char *buf, size_t buflen);
 
 #define BUF_MAX_HANDLES         256
 
-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);