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Hello,

>>>     1) simple 1-color bit mask (maybe image is ignored, and only
>>> mask is used?)
>>
>> Do you know any chips that use such a format? All I've ever dealt with
>> use at least two bit images.
>
> Nothing modern.  But it seems like it would be a reasonable thing on a
> low-end monochrome LCD, where you don't really have color anyway.

That doesn't have much to do with the image format used by the DAC or 
graphics controller.
And on such a display you'd use black/white + mask. Sorry, I've yet to 
see any hardware that really uses only 1 bit cursor data and no mask.

>>>     4) various alpha blended formats...
>>
>> Yes, bitmap + alpha makes sense. Well, in a way bitmap+mask is a 1 bit
>> bitmap and a 1 bit alpha channel ;)
>
> Yeah.  Radeon can do better, but I'm not implementing right now...

None of mine does anything like that as far as I know ( the voodoo3 
might though ) but we definitely should keep it in mind.

have fun
Michael
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