https://bugs.documentfoundation.org/show_bug.cgi?id=145910

Caolán McNamara <[email protected]> changed:

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--- Comment #11 from Caolán McNamara <[email protected]> ---
my patch above is just about figring out how to get opengl slide transitions
working under gtk4

For the general case here, my understanding is that: There have been two uses
of OpenGL in libreoffice. The classic use was just for OpenGL slide
transitions, then it began to be used as an optimized mode for the UI itself,
typically on windows. But since db89f53c31af997b9bf422b0e784afba8d62a42e
(towards 7.2) that was removed (in favor of the skia backend basically) and
from 7.2 onwards the OpenGL stuff is again only used directly for OpenGL slide
transitions.

What I don't know is if there is any relationship between
vcl/source/opengl/opengl_denylist_windows.xml and skia (@llunak?) or if the
denylist truly now only in practice disables opengl slide transitions.

If the denylist is now just for our direct opengl slide transitions then it
suggests that if the support was disabled for some case seen in the now removed
"OpenGL for UI" case but that driver family is good enough to run the
transitions it can be removed again from the denylist, and it's fairly easy to
quickly test all the transitions to determine that.

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