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File _service:tar_scm:0023-xwayland-Fix-setting-of-_XWAYLAND_RANDR_EMU_MONITOR_.patch of Package xorg-x11-server
From 049333a0ecf8574a0612bf27850f9682f0f70533 Mon Sep 17 00:00:00 2001 From: Hans de Goede <hdegoede@redhat.com> Date: Mon, 4 Nov 2019 14:32:29 +0100 Subject: [PATCH xserver 23/25] xwayland: Fix setting of _XWAYLAND_RANDR_EMU_MONITOR_RECTS prop on new windows For window-manager managed windows, xwl_realize_window is only called for the window-manager's decoration window and not for the actual client window on which we should set the _XWAYLAND_RANDR_EMU_MONITOR_RECTS prop. Usualy this is not a problem since we walk all client windows to update the property when the resolution is changed through a randr call. But for apps which first do the randr change and only then create their window this does not work, and our xwl_output_set_window_randr_emu_props call in xwl_realize_window is a no-op as that is only called for the wm decoration window and not for the actual client's window. This commit fixes this by making ensure_surface_for_window() call xwl_output_set_window_randr_emu_props on the first and only child of window-manager managed windows. Note this also removes the non-functional xwl_output_set_window_randr_emu_props call from xwl_realize_window, which was intended to do this, but does not work. This fixes apps using the ogre3d library always running at the monitors native resolution. Acked-by: Olivier Fourdan <ofourdan@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> (cherry picked from commit 148f428dfccf606b932a00d5a00af06e8dca8a7e) --- hw/xwayland/xwayland.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/hw/xwayland/xwayland.c b/hw/xwayland/xwayland.c index 5bb7a68e9..1600c00cd 100644 --- a/hw/xwayland/xwayland.c +++ b/hw/xwayland/xwayland.c @@ -738,6 +738,7 @@ ensure_surface_for_window(WindowPtr window) struct xwl_screen *xwl_screen; struct xwl_window *xwl_window; struct wl_region *region; + WindowPtr toplevel; if (xwl_window_from_window(window)) return TRUE; @@ -808,7 +809,14 @@ ensure_surface_for_window(WindowPtr window) xwl_window_init_allow_commits(xwl_window); - if (!window_is_wm_window(window)) { + /* When a new window-manager window is realized, then the randr emulation + * props may have not been set on the managed client window yet. + */ + if (window_is_wm_window(window)) { + toplevel = window_get_client_toplevel(window); + if (toplevel) + xwl_output_set_window_randr_emu_props(xwl_screen, toplevel); + } else { /* CSD or O-R toplevel window, check viewport on creation */ xwl_window_check_resolution_change_emulation(xwl_window); } @@ -857,8 +865,6 @@ xwl_realize_window(WindowPtr window) return FALSE; } - xwl_output_set_window_randr_emu_props(xwl_screen, window); - return ensure_surface_for_window(window); } -- 2.28.0
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