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nested: Add damage tracking to the nested compositor example 

The nested compositor example now responds to damage requests and
tracks them in the pending buffer state. This isn't currently used for
anything and it is immediately discarded when the surface is commited
but it will be used later when the example is converted to use
subsurfaces.
This commit is contained in:
Neil Roberts 2013-09-08 20:24:14 +01:00 committed by Kristian Høgsberg
parent 15a8d340fd
commit 2855766333
1 changed files with 21 additions and 0 deletions
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21
clients/nested.c
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@ -95,6 +95,9 @@ struct nested_surface {
/* wl_surface.frame */
struct wl_list frame_callback_list;
/* wl_surface.damage */
pixman_region32_t damage;
} pending;
};
@ -371,6 +374,8 @@ destroy_surface(struct wl_resource *resource)
nested_buffer_reference(&surface->buffer_ref, NULL);
pixman_region32_fini(&surface->pending.damage);
wl_list_remove(&surface->link);
free(surface);
@ -472,6 +477,11 @@ surface_damage(struct wl_client *client,
struct wl_resource *resource,
int32_t x, int32_t y, int32_t width, int32_t height)
{
struct nested_surface *surface = wl_resource_get_user_data(resource);
pixman_region32_union_rect(&surface->pending.damage,
&surface->pending.damage,
x, y, width, height);
}
static void
@ -521,6 +531,13 @@ surface_set_input_region(struct wl_client *client,
fprintf(stderr, "surface_set_input_region\n");
}
static void
empty_region(pixman_region32_t *region)
{
pixman_region32_fini(region);
pixman_region32_init(region);
}
static void
surface_commit(struct wl_client *client, struct wl_resource *resource)
{
@ -537,6 +554,9 @@ surface_commit(struct wl_client *client, struct wl_resource *resource)
}
surface->pending.newly_attached = 0;
/* wl_surface.damage */
empty_region(&surface->pending.damage);
/* wl_surface.frame */
wl_list_insert_list(&nested->frame_callback_list,
&surface->pending.frame_callback_list);
@ -591,6 +611,7 @@ compositor_create_surface(struct wl_client *client,
wl_list_init(&surface->pending.frame_callback_list);
surface->pending.buffer_destroy_listener.notify =
surface_handle_pending_buffer_destroy;
pixman_region32_init(&surface->pending.damage);
display_acquire_window_surface(nested->display,
nested->window, NULL);