OldSchool Library is a graphical library for the PlayStation Portable. It is intended to help you working on 2D games.

Changes:

– ATRAC3(plus) audio support.
– MP3 audio support (untagged, 44 kHz files only).
– Images are now automatically swizzled when loaded, providing a performance boost for new users.
– Analog-to-DPad support.
– Get/SetImagePixel now can work with swizzled images.

http://brunni.dev-fr.org/index.php?page=pspsoft_oslib