[cairo] cairo appear white edge antialiasing

[丹青(Hishop)]

Hello, my English is not good, so I used the GOOGLE Translator. This may
cause problems very sorry!

I used to do a cairo 1.12 Convert SWF to bitmap software, but there will be
a white sideline production. I specifically included in the mail Photo
Gallery.
Hope to get your help, thank you![image: 内嵌图片 1]
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