[MPlayer-dev-eng] programming specs for the G400, specifically brightness/contrast

Arpi arpi at thot.banki.hu
Fri Mar 8 07:56:56 CET 2002


Hi,

> The vidix EQ does not work on the G400 (BES).  I have "#deinfed" the
> MGA_EQUALIZER macro but I get a picture that is shaded green on the
> top half and purple on the bottom half (or is it the other way
> around?) and adjusting the brightness and/or contrast has no effect.
> 
> The whole mechanism looks pretty simple so I want to try to fix it,
> but how do I know which registers are to be programmed with what
> values to adjust brightness and contrast?  There is some code there to
> do it, but it's obviously got a problem.
> 
> Is there a programming spec for the G400 around somewhere?  Where did
ftp.mplayerhq.hu

> the values in the current implementation come from?

eq works in mga_vid kernel module afaik, so you can borrow code from that


A'rpi / Astral & ESP-team

--
Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu



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