[Cairo] [patch] implement push/pull on xc surfaces
cworth at east.isi.edu
Fri Sep 12 12:26:39 PDT 2003
On Sep 12, Keith Packard wrote:
> That's almost certainly because someone is attempting to create depth-32
> pixmaps to hold intermediate data.
That would be me. There are a couple of places within Cairo itself
that it does this.
> Non-Render servers rarely support this format.
Ugh. OK. In that case, supporting non-render servers will take a bit
Ah, but it looks like the work isn't too hard. There's only one call
to XCreatePixmap in Cairo, and it has libic-based fallback code next
to it already.
I just committed a really lame patch that will help in some cases. It
falls over to the libic code whenever it tries to create a depth 32
pixmap on a server without Render. This will be sub-optimal if the
server actually does support depth 32, and it can still break on other
depths, (eg. I just found that cairo-knockout fails against vncserver
which doesn't support depth 8 pixmaps).
I will gladly accept a better patch that actually works with the
server to do the right thing.
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