Window: DGL Cairo has a critical bug on rendering

[AnClark]

Hi, falkTX!

I'm testing jpcima's String Machine on Windows. It uses DPF and Cairo. When I open string machine's GUI (VST2) on hosts like REAPER and MidiPlayer6, the GUI will crash occasionally. At this time, the host UI may crash altogether.

(Notice the font in the third image, which only appears on critical UI rendering issues.)

This issue may be similar to #437 , but even more critical.

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System environment:

Item	Value
OS	Windows 10
Build environment	MSYS2 MinGW64
Cairo library	Provided by MSYS2

[falkTX]

is the plugin using an updated dpf? if not the bug is invalid, because as I said on the other discussion this same issue was already fixed.

[AnClark]

is the plugin using an updated dpf? if not the bug is invalid, because as I said on the other discussion this same issue was already fixed.

It still uses old DPF (f24e531). I'll test it later with updated DPF.

Which commit resolved the issue?

[falkTX]

the commit comes from pugl, so you cant just cherry-pick it. too many things change, then dpf has to change to match too.

PS: bug reports against old DPF are invalid btw, and kinda waste of time

[AnClark]

Thanks a lot! I'll sync the local DPF tree.

P.S. A change log of critical updates maybe useful.