pwfb NX Per-Window Framebuffer Text Example

A graphics example using pre-window frame buffers. The example shows three windows containing text moving around, crossing each other from above and from _below_. The example application is NOT updating the windows any anyway! The application is only changing the window position. The windows are being updated from the per-winidow framebuffers automatically.

This example is reminiscent of Pong: Each window travels in straight line until it hits an edge, then it bounces off. The window is also raised when it hits the edge (gets focus). This tests all combinations of overap.

Note: A significant amount of RAM, usually external SDRAM, is required to run this demo. At 16bpp and a 480x272 display, each window requires about 70Kb of RAM for its framebuffer.