Introduction

OldSchool Library for PSP is the best PSP library and has currently no serious competitor.
Don’t search anywhere else: you just found the true way for developping on your PSP!

It can help you for making PSP an easier console of access for the beginners, and also for those which want just to benefit from its power.
OSLib brings the power of the GPU to you it it PSP without having to learn the concepts 3D or to touch with the hardware.

You can :
* load images (PNG or GIF) with channel alpha
* draw directly on them, deform them (unbounded rotation & zoom, advanced effects of transparency, bilinear filtering,…)
* display more than one hundred of thousands by second
* draw and read single pixels on images
* load paletted images, create paletted image from a true color one, convert between image formats * draw maps
* display ranges at four points
* use debug messages
* play audio files (MP3, ATRAC3, WAV, BGM, MOD, IT, XM or S3M) and choose to stream them or not since the Memory Stick.
* use the advanced keys manager to create ergonomic menus
* use 4-bit font format: you can display colorful characters, which can be tinted
* define the framerate you want
* use virtual file system : everything can be loaded from a file, memory or a custom device you created by yourself.



— Brunni