[cairo] Non-antialiased rendering in image surface

[cu]

I see. That's unfortunate. I use non-antialiased rendering for certain
objects when it's important that their edges match perfectly (without a
thin line that seems to appear when fill is made in antialiased mode).

Guess I need to measure the impact and compare.

M Joonas Pihlaja wrote:
> On Sat, 26 Jun 2010, cu wrote:
>
>   
>> Is there something about non-antialiased rendering that makes it less
>> preferred or slower than antialiased rendering wrt image surface?
>>     
>
> Yes there is.  The non-antialiased rendering is generally done via an 
> A1 format bitmap mask surface and this invokes general composition 
> paths inside pixman.  There's no particularly good reason for this I 
> think other than "nobody uses unantialiased rendering."
>
> Joonas
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