From a093a88531599832811a1ba5cb85101af91a545e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michel=20D=C3=A4nzer?= Date: Tue, 29 Jan 2019 18:59:09 +0100 Subject: [PATCH] present/wnmd: Allow flipping if the window pixmap matches the toplevel's Instead of testing window->redirectDraw. With Xwayland, the toplevel window is always redirected, so this would unnecessarily preclude flipping there in some cases, e.g. with wlroots based Wayland compositors or with fullscreen X11 windows in weston. Fixes issue #631. --- present/present_wnmd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/present/present_wnmd.c b/present/present_wnmd.c index a2d9da8fb..9d0b147cc 100644 --- a/present/present_wnmd.c +++ b/present/present_wnmd.c @@ -270,8 +270,8 @@ present_wnmd_check_flip(RRCrtcPtr crtc, if (!screen_priv->wnmd_info->flip) return FALSE; - /* Don't flip redirected windows */ - if (window->redirectDraw != RedirectDrawNone) + /* Can't flip redirected child windows */ + if (screen->GetWindowPixmap(window) != screen->GetWindowPixmap(toplvl_window)) return FALSE; /* Source pixmap must align with window exactly */