Re: [hatari-devel] PhotoChrome v6.2-pre

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 16/10/2015 15:27, Douglas Little a écrit :
> Hi!
>
>
>     Doug, what is the width of the pcs image, 400 pixel ? Do you center
>     it on the overscan screen by adding black pixels on left/right, and
>     if so how much pixels ?
>
>
> The image is 416 pixels, and it tries to display all 416 - however it
> may be displaying less, as you say, due to border toggle periods and HW
> effects there.
>
> On my STE+LCD TV I seem to see the whole image but it's possible the TV
> is blanking a small part of it at one or both sides.
>
> I'll try converting a testcard to see how many pixels actually make it
> to the TV... It may only be 408 in fact - will see.

I have an old CRT monitor that I need to plug one day to check this. It 
has some buttons to center/move screen horizontally/vertically, which is 
useful to see pixels at the limits. So if I move screen to left, I don't 
see the 1st left pixels, but I see all the pixels to the right and I can 
see blank signal too. This way it's possible to see where the display 
really stops on ST.

From what I see when connecting STF/STE to LCD TV, the TV upscales the 
SCART image to be 1920x1080 and trim/alter some pixels doing so, which 
is not handy to precisely check pixel one by one.


Nicolas