[gtk: 3/3] Merge branch 'wip/otte/diff' into 'main'

[Benjamin Otte <otte src gnome org>]

commit c83cba2322815bfc3ea3768ce68a084539b02c97
Merge: 4b3247576a 20dcc31d19
Author: Benjamin Otte <otte benjamin googlemail com>
Date:   Mon Dec 20 19:01:52 2021 +0000

    Merge branch 'wip/otte/diff' into 'main'
    
    Make render node diffing not slow
    
    Closes #4560 and #2396
    
    See merge request GNOME/gtk!4269

 gsk/gskdiff.c           | 19 ++++++++++++++-----
 gsk/gskdiffprivate.h    |  6 +++---
 gsk/gskrendernodeimpl.c | 35 ++++++++++++++++++++++-------------
 3 files changed, 39 insertions(+), 21 deletions(-)
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