Search Results for "frame buffer"

...Composite output doesn't require external components (maybe a 5Mhz low pass filter). An unlimited number of sprites are supported. However big sprites and a large amount of them reduce the frame rate and could generate flickering. When there is enough memory (on low resolutions like 320x200), it is possible to allocate two screen buffers, so to implement double buffering. In this case primitives are always drawn on the back buffer.

Based on my previous work a while ago on Solaris workstations (and the great work at http://raspberrycompote.blogspot.co.uk) I have put together a simple library to make use of the RaspberryPI's frame buffer for unaccelerated 2D graphics. The Library supports graphics primatives such as: Pixel, Line, Ellipse, Rectangle, Fill, Triangle, Polygon, CopyRect, Images, DoubleBuffering/Page Flips, XY origin, TTF Fonts (via public domain code) Using 16-bit (R5-G6-B5) colour mode (at all available screen resolutions the PI supports) it allows for a relatively fast, colourful graphics API. ...