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Fri, 25 Sep 1998 12:52:42 -0800 |
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<002801bde736$d4fde060$d25bfea9@safora> |
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General Magic |
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On 23 Sep 98 at 17:12, Roberto Safora wrote:
> I have a client who wants to use his video card on 800 x 600, 32
> bits color. However he is using a CL5446 PCI, 2 MB. In win 95 the
> most I can see is color 24 bits. I dont understand why we can get
> 32 bit color, nor even in 640 x 480, if we have 2 MB.
32-bit "colour" doesn't actually give you any more than 24 colour
bits.
What 32-bit mode DOES is align the 24-bit pixel colour values on
32-bit (DWORD) boundaries, so that they can often be read/written in
one cycle rather than two.
It's a PERFORMANCE feature. As such, you'll only find it on video
cards that feature performance -- which I wouldn't expect to include
any of the Cirrus Logic chipsets.
David G
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