[squeak-dev] Cuis updated to #0204

Karl Ramberg karlramberg at gmail.com
Sat May 23 13:31:24 UTC 2009


On 2009-05-23 14:43, Juan Vuletich wrote:
> Karl Ramberg wrote:
>> On 2009-05-23 14:15, Juan Vuletich wrote:
>>> ...
>>>
>>> BTW, at http://www.jvuletich.org/Cuis I uploaded some screen shots 
>>> of Cuis with and without subpixel AA and at various Display depth, 
>>> for those too lazy to actually download it.
>>>
>>> Cheers,
>>> Juan Vuletich
>>>
>>>
>> Not to be nit picking but being it anyway...
>> In the SubPixelAA pictures in the Workspace on top I see white pixels 
>> in the f,  t, 1, B and s....
>>
>> Karl
>>
>>
>> I see some artifacts on the subpixel
>
> You are right! It is in the 32bpp image. Of course you don't see those 
> in Squeak, it is a problem of how I saved the PNG file. I fixed it now.
>
> The details... The alpha channel of Display is ignored by VMs. So we 
> don't pay much attention to it, but it usually contains "garbage". 
> This was noted by people using composing window managers in Linux. You 
> see in the png that I evaluated 'Display fixAlpha. PNGReadWriter 
> putForm:...'. That fixed the alpha channel for the whole Display. But 
> it seems that when evaluating, Squeak redered the selected text again, 
> creating the defect you noticed.
>
> Cheers,
> Juan Vuletich
>
>
Ah, that explains it.

Karl




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