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Martin Flöser authored
Summary: If a buffer gets destroyed the texture created from it is still valid. In such a situation the OpenGLWindowPixmap should return true for isValid and not false as it did. Similar in QPainter compositor the pixmap is valid if there is an image copied from the buffer. This change ensures that for example minimizing an XWayland window still has a texture during the minimize animation. BUG: 368440 Test Plan: Minimize animation plays for X windows and minimized windows are shown in present windows. Reviewers: #kwin, #plasma_on_wayland Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D2724
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