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VFD display rendering library for the empeg car player
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empeg/vfdlib
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******************************************************* vfdlib - a graphics api library for empeg userland apps ******************************************************* Version 3 - 6th September 2002 Copyright (C) 2002 Richard Kirkby ** find the latest version at http://empeg-vfdlib.sourceforge.net ** Introduction: I recognized a barrier to implementing userland apps on the empeg/riocar as being the lack of custom graphics libraries. I personally would like to see a lot more development, and sought to help myself and others overcome the initial barrier by writing my own set of graphics routines. I see a lot of potential for this library in combination with hijack (thanks to mlord) and the efforts of others for a wealth of cool userland apps on the empeg! Now if only someone would automate the installation process of apps then we would really be getting somewhere... Features: * Ability to draw points, lines, rectangles, ellipses, polygons, text and bitmaps. * Can use the same font files the player uses! * Drawing operations fully clipped to a user definable rectangle. Those of you hungry for more speed can bypass the clipping overhead when careful to ensure drawing operations will not leak outside the display area. * Written in C with the empeg in mind, meaning fast, compact, optimized integer routines. * Think you can do better? Please do! The code is open source - help to make it better and share the results with the rest of us. Copying/Modifying/Distributing: The code is released under the GNU GPL. See the file COPYING for more information. Files: README - this file COPYING - information about the GPL license vfdlib.h - the header file to include in your apps vfdlib.c - the source file to compile and link with your apps Feedback: Please feel free to send me any suggestions, improvements, bug reports or comments via my email address: rkirkby (at) cs.waikato.ac.nz Even better, join in the discussions on the unofficial empeg bbs: http://empeg.comms.net/ Credits: Thanks go to Mourgoyiannis Spiros for helping me to decypher the .bf file format. Special thanks to Mark Lord for his brilliant hijack kernel. Most of all, thanks to the empeg team for developing the best gadget I've ever owned. Revisions: 06/09/2002 v3 - added fastclear function fixed bugs in bitmap drawing routines 16/06/2002 v2 - added support for .bf font files added invert rectangle function 29/05/2002 v1 - initial release
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