piekarski-slides-lca.. - Tinmith Augmented Reality Project

Useful example• X has trouble displaying live video• MIT SHM, Xvideo, DGA, etc• Each driver in XFree86 supports some but not others• You have to write your client to support all of them!• X doesn’t expose the entire acceleration of the video card• OpenGL can display texture maps natively• Not just render but perform warping, scaling, etc• Can render to flat 2D or any 3D polygon!• OpenGL is written to assume acceleration, so it will takeadvantage of as much as is available• Supports auto format conversions (RGB, YUV, B&W)» Show application demo here33 Wayne Piekarski Wearable Computer Lab CIS @ UniSA http://www.tinmith.net/lca2005lca 2005