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GdkWindowWayland: make sure we attach the surface when repainting

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Lazily creating the cairo surface that backs a window when we
first paint to it means that the call to
gdk_wayland_window_attach_image() in
gdk_wayland_window_process_updates_recurse() wasn't working the
first time a window was painted.

https://bugzilla.gnome.org/show_bug.cgi?id=698864
This commit is contained in:
Owen W. Taylor 2013-04-24 18:00:41 -04:00
parent d5310f9367
commit c71fea568f
1 changed files with 21 additions and 15 deletions
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36
gdk/wayland/gdkwindow-wayland.c
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@ -478,28 +478,34 @@ gdk_wayland_create_cairo_surface (GdkWaylandDisplay *display,
return surface;
}
/* On this first call this creates a double reference - the first reference
* is held by the GdkWindowImplWayland struct - since unlike other backends
* the Cairo surface is not just a cheap wrapper around some other backing.
* It is the buffer itself.
*/
static cairo_surface_t *
gdk_wayland_window_ref_cairo_surface (GdkWindow *window)
static void
gdk_wayland_window_ensure_cairo_surface (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
GdkWaylandDisplay *display_wayland =
GDK_WAYLAND_DISPLAY (gdk_window_get_display (impl->wrapper));
if (GDK_WINDOW_DESTROYED (impl->wrapper))
return NULL;
if (!impl->cairo_surface)
{
GdkWaylandDisplay *display_wayland =
GDK_WAYLAND_DISPLAY (gdk_window_get_display (impl->wrapper));
impl->cairo_surface =
gdk_wayland_create_cairo_surface (display_wayland,
impl->wrapper->width,
impl->wrapper->height);
}
}
/* Unlike other backends the Cairo surface is not just a cheap wrapper
* around some other backing. It is the buffer itself.
*/
static cairo_surface_t *
gdk_wayland_window_ref_cairo_surface (GdkWindow *window)
{
GdkWindowImplWayland *impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
if (GDK_WINDOW_DESTROYED (impl->wrapper))
return NULL;
gdk_wayland_window_ensure_cairo_surface (window);
cairo_surface_reference (impl->cairo_surface);
@ -1623,8 +1629,8 @@ gdk_wayland_window_process_updates_recurse (GdkWindow *window,
gdk_wayland_window_map (window);
if (impl->cairo_surface)
gdk_wayland_window_attach_image (window);
gdk_wayland_window_ensure_cairo_surface (window);
gdk_wayland_window_attach_image (window);
_gdk_window_process_updates_recurse (window, region);