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meta-wayland: intersect the damage region with the window size before applying

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According to the wayland documentation, damage outside the
window size is ignored.
This happened with xwayland+wlshm (causing a GL error when calling
TexSubImage2D), probably due to not resizing the buffer
until we receive the corresponding X event.
Might also be an off-by-one in xwayland, as the window size did
not actually change.

Note: we might want to take the configure_notify path instead,
and keep the GL/clutter size consistent with wayland rather than
X, because in the end that's what matters for events and composition.

https://bugzilla.gnome.org/show_bug.cgi?id=706289
This commit is contained in:
Giovanni Campagna 2013-07-29 14:09:26 +02:00 committed by Jasper St. Pierre
parent 590cf4e832
commit cbe5b6b3bc
1 changed files with 10 additions and 0 deletions
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10
src/wayland/meta-wayland.c
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@ -211,6 +211,16 @@ surface_process_damage (MetaWaylandSurface *surface,
{
MetaWindowActor *window_actor =
META_WINDOW_ACTOR (meta_window_get_compositor_private (surface->window));
MetaRectangle rect;
cairo_rectangle_int_t cairo_rect;
meta_window_get_input_rect (surface->window, &rect);
cairo_rect.x = 0;
cairo_rect.y = 0;
cairo_rect.width = rect.width;
cairo_rect.height = rect.height;
cairo_region_intersect_rectangle (region, &cairo_rect);
if (window_actor)
{