Explanation of 2D accelerator theorem in video application

[mitsubishi]

2D Accelerator ??

Do anyone understand theorem of 2D acceleratoe(2D engine) in video application.

Where can find relation data. Thanks.

 

[mikel262]

Re: 2D Accelerator ??

2D acceleration could be for eg. hardware line (circle,box) drawing using bresenham, dda or others algorithms; also blitter (block image transfer). You can find some useful information here:

circle :http://www.dcs.gla.ac.uk/research/fpga/papers/pdf/fccm94.pdf

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and bresenham in c:
http://www.edepot.com/linebresenham.html
implementation of this algorithm in hardware (vhdl) is fairly straightforward. This algorithm has been implemented in voodoo banshee 2D accelerator, which btw has very good datasheet:

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and here some good introduction info:
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mike