Helping Cairo - https://people.gnome.org/~federico/blog/helping-cairo.html
@federicomena If I only had the time, improving Cairo would be something that I would definitely like to get into. In particular it completely riles me up is the limitation of surface size to 32768px, this has bitten us many times in WebKit, and it's only going to get worse now with HiDPI displays.
@federicomena For example when some websites will serve sprite sheets e.g. all emojis as a single PNG, which may be one column or row of sprites (so 32x35000px, or 35000x32px)
@federicomena A less borderline case than image sprite sheets is taking a “screenshot” of all the contents of a webpage (not just what's seen on the window): when the page is a few (15-20) screenfulls, like a long Wikipedia article, which can easily be more than 32K px tall. Or for shorter pages around 16K px tall, if a 2x scale factor is in use (because HiDPI), there you go again over the 32K size limit.
@federicomena I could probably find more examples, but those two are just from the top of my head without even needing to go and dig bug reports.
@aperezdc shit, it's a Pixman limitation.
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