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win: delayed release of shadow image

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Previously win_set_shadow tries to release the shadow image when turning
off shadow for a window. When shadow is turned off _immediately_ after
it's turned on, picom won't have a chance to handle the delayed creation
of the shadow before win_set_shadow tries to release the shadow image,
causing a assertion failure because win_set_shadow tried to release a
non-existing image.

This commit makes releasing the shadow image delayed as well.

In theory, we could check the STALE flag in win_set_shadow before
release the image, but that duplicates the logic that is already in
win_process_flags.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
2019-11-18 22:34:05 +00:00
parent 8b37fcb1d8
commit d4e76b271a
4 changed files with 89 additions and 13 deletions
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tests/run_tests.sh
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@@ -7,3 +7,4 @@ cd $(dirname $0)
./run_one_test.sh $exe configs/issue239.conf testcases/issue239.py
./run_one_test.sh $exe configs/issue239_2.conf testcases/issue239_2.py
./run_one_test.sh $exe configs/issue239_3.conf testcases/issue239_3.py
./run_one_test.sh $exe configs/issue239_3.conf testcases/issue239_3_norefresh.py