Date: Mon, 10 Mar 1997 01:18:12 -0800 From: Amancio Hasty <hasty@rah.star-gate.com> To: Doug White <dwhite@resnet.uoregon.edu> Cc: freebsd-multimedia@FreeBSD.ORG Subject: Re: BT848: Revenge of the smurfs Message-ID: <199703100918.BAA02166@rah.star-gate.com> In-Reply-To: Your message of "Mon, 10 Mar 1997 00:08:23 PST." <Pine.BSI.3.94.970309233112.416A-100000@localhost>
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>From The Desk Of Doug White :
> 5. A special hack needs to be made for the Mach64 X server. Amancio
> reports the Mach64 cards' RGB bit order is backwards from other (S3?)
> units. This is best exhibited by firing up tv and tuning to the evening
> news -- it's the attack of the killer human-sized smurfs! :)
> Traditionally blue backgounds become fire red, and my nice blue raincoat
> performs a similar transformation with my video camera. Green comes
> through fine, as does captures from vic.
>
Just to get you going over there : Try setting the following bits:
bt848[BKTR_COLOR_CTL] :
bit 3 WORD SWAP ODD
bit 2 WORD SWAP EVEN
bit 1 BYTE SWAP ODD
bit 0 BYTE SWAP EVEN
Now if you look in brooktree848.c: start_capture
you will see:
case METEOR_ONLY_EVEN_FIELDS:
bktr->flags |= METEOR_WANT_EVEN;
i_flag = 1;
break;
case METEOR_ONLY_ODD_FIELDS:
bktr->flags |= METEOR_WANT_ODD;
i_flag = 2;
break;
default:
bktr->flags |= METEOR_WANT_MASK;
i_flag = 3;
break;
}
even is for even frames
odd is for odd frames
default:
is for even and odd frames
For testing purposes I would just set bit 0 1 if you are capturing in 16bits
If you are capturing 32bits I would set bit 3 2.
bt848[BKTR_COLOR_CTL] |= 3;
Obviously this is a quick and very dirty hack but I think it can get you
going over there.
Have fun,
Amancio
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