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shaped-texture: Use actual texture if tower returned NULL

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The texture tower can return no texture e.g. if the calculated level is
negative. This was handled before, but regressed with
e1370ee209ddf4b864c7275f0d67d8ab64d59029. This fixes a potential crash
observed occasionally when starting Firefox nightly using the Wayland
backend in overview mode.
This commit is contained in:
Jonas Ådahl 2019-01-04 19:05:00 +01:00 committed by Georges Basile Stavracas Neto
parent 173867c12b
commit 490f27efcb
1 changed files with 2 additions and 0 deletions
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2
src/compositor/meta-shaped-texture.c
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@ -733,6 +733,8 @@ meta_shaped_texture_paint (ClutterActor *actor)
stex->fast_updates < MIN_FAST_UPDATES_BEFORE_UNMIPMAP)
{
paint_tex = meta_texture_tower_get_paint_texture (stex->paint_tower);
if (!paint_tex)
paint_tex = stex->texture;
}
else
{