Why does the GTK3 vcl sal plugin default to SvpSalGraphics / software rendering?

Clemens Eisserer linuxhippy at gmail.com
Wed Feb 14 09:44:39 UTC 2018


I am currently analyzing performance issues when scrolling larger
images in writer on linux, especially when they have an alpha channel:

Some reports indicate that the GTK3 vcl backend seems to be particulary bad.

While investigaing, I found that with the GTK3 backend all rendering
is done with SvpSalGraphics in software / on the CPU.
I wonder what was the relationale behind this decision? And is this
the right mailing list to ask vcl implementation details?

Best regards, Clemens

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