[Etoys] Re: Camera to do

[Bert Freudenberg]

Diego,

my palette patch is up in the SVN repository, you could start from  
there. I'll try to set up an ssh tunnel for you in the office later.

But here's a photograph:

	http://wiki.laptop.org/go/Image:CameraInEtoys.jpg

- Bert -

On Dec 12, 2006, at 1:22 , Diego Gomez Deck wrote:

> Hi Bert,
>
> Great to know the camera is working (slowly, but it's working).
>
> I did know the performance is not good, and I can try to make it  
> faster.
>
> BTW I still didn't find the way to create a test-environment. The  
> alpha
> board doesn't include the webcam, and I didn't find any webcam with  
> the
> same video format (to plug it in the alpha board).
>
> Kim said I'll receive an beta prototype. In this case, I'll just  
> wait to
> develop in it. Kim, can you confirm it?.
>
> Otherwise I'll need an ssh/telnet account to a running beta-board.  
> Bert,
> Is working the WIFI/LAN in your prototype?
>
> Bert, I DO need a picture of the webcam working on the beta- 
> board... to
> post it in my blog! ;-)
>
> Cheers,
>
> -- Diego
>
>
>
>> As I wrote in the other message, the btest machine's camera works,
>> but it's really slow right now even at 320x240 (the camera actually
>> supports 640x480). We'll have to optimize it significantly to be
>> usable. We should allocate a 16 bit form and let the plugin read the
>> camera data right into the form bits. Then only do an in-place
>> palette conversion (YUYV8888 to 2xRGB555). This hopefully will be a
>> lot faster than the current version, which first converts to a 24 bpp
>> bitmap and then to a 32 bpp form using float math for contrast/
>> brightness adjustment which is then drawn on the 16 bpp display.
>> Anybody up to implement this?
>>
>> We maybe also could learn from the camera demo activity. AFAIK, it
>> streams directly into the framebuffer and uses the Geode's video
>> overlay/scaling/color conversion units. It achieves full-screen full-
>> speed video.
>>
>> As an aside, the VideoMorph's controls do not work for me, I can not
>> change the resolution in the dialog.
>>
>> - Bert -
>
>
> -- 
> ==========================================
>  Diego Gomez Deck
> ------------------------------------------
>  http://diegogomezdeck.blogspot.com/
>  http://smalltalk.consultar.com/
> ==========================================
>
>