At 02:44 �� 9/2/2002 +0000, you wrote:

> >Does anyone know what Disp_Colour 4,x,y is supposed to do? IIRC from
>the
> >QPC manual (I don't have it in front on me) it's supposed to switch
>to 24
> >bit colour, however I see nowhere a documented Mode xx for 24 bit
>colour....
> >
> >Can someone help?
>
>24-bit colour mode is a 16 million colour mode. As yet does not exist
>in hardware terms - SMSQ2.98 docs say:
>
>'DISP_COLOUR colour depth
>Specifies the colour depth to be used - 0 for QL, 3 for 16 bit (65536
>colours) also 1 for 4 bit (16 colour) 2 for 8-bit (256 colour) and 4
>for 24 bit (16 million colours) - but these do not exist'
>
>I don't know if the last part refers to the fact that SMSQ/E has no
>support (yet) for those colour depth modes, or just that there is no
>hardware with 24 bit support.
>
>The theory for 24 bit (true) colour mode is:
>MODE number 64, 16 million colours, 24 bits, 8 bit RGB colour
>definition, organised within the long word as rrrrrrrr gggggggg
>bbbbbbbb --------
>
>(again, I don't know if the lower 8 bits are used for anything...)

Hi Dilwyn,
I found out that one of my converted PIC or SCR files that loads great in 
say 800x600 appears totally distorted when the DISP_COLOUR 4 is given...

(If you ask me why in heaven's name I gave DISP_COLOUR 4... well it was a 
typo!)

Nonetheless I observed the following:

1. Organization in that mode must not be 3 bytes per pixel because just the 
colours appear distorted and not the overall size of the SCR file when 
loaded with BGIMAGE
2. It turns out to be semi black and white...

So my question is:

Is that an undocumented 16 bit greyscale or what????

Phoebus

>--
>Dilwyn Jones
>[EMAIL PROTECTED]
>http://www.soft.net.uk/dj/index.html

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