shell-recorder: Avoid a crash when the cursor texture is NULL
When running as a wayland compositor, MetaCursorTracker might legitimately not have a displayed cursor because e.g. a client unsets the cursor surface. Note that, under an X session, the assumption that the tracker always has a cursor texture is true because XFixesGetCursorImage() always returns data even if the cursor isn't visible. https://bugzilla.gnome.org/show_bug.cgi?id=767001
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@ -321,6 +321,9 @@ recorder_fetch_cursor_image (ShellRecorder *recorder)
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guint8 *data;
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texture = meta_cursor_tracker_get_sprite (recorder->cursor_tracker);
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if (!texture)
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return;
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width = cogl_texture_get_width (texture);
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height = cogl_texture_get_height (texture);
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stride = 4 * width;
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