PNG importing appears to be broken ( was Re: [squeak-dev] Who understand bilinear interpolation for reducing image size?)

J. Vuletich (mail lists) juanlists at jvuletich.org
Sat Dec 13 16:15:29 UTC 2014


Quoting "J. Vuletich (mail lists)" <juanlists at jvuletich.org>:

> Quoting Bert Freudenberg <bert at freudenbergs.de>:
>
>> On 12.12.2014, at 20:09, tim Rowledge <tim at rowledge.org> wrote:
> i>> Scratch has to use paint.
>>
>> Then Scratch has to make it usable for that. All I'm saying is that  
>> we should not make the general importer worse for the special case  
>> of Scratch.
>>
>> So as soon as the imported form enters Scratch code, fix up the RGB  
>> values. Why wouldn't that work?
>>
>> - Bert -
>
> +1
>
> Cheers,
> Juan Vuletich

Just doing 'aForm asFormOfDepth: 16' should suffice. This should  
convert pixels with alpha below some threshold to zero, giving forms  
that work ok with 'paint'.
Cheers,
Juan Vuletich



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