[PATCH weston v3 1/6] compositor: Untangle mapedness from outputs

Armin Krezović krezovic.armin at gmail.com
Fri Jul 1 12:30:55 UTC 2016


On 30.06.2016 21:50, Bryce Harrington wrote:
> mapedness isn't a word ;-)
> 
> (Neither is mappedness really...  You'll likely need to reword the
> commit title entirely.  The third sentence in your commit message is
> probably a good starting point if you can boil it down.)
> 

After a discussion with Pekka, we agreed that 

"Untangle surface/view is_mapped from output assignments"

is a better title and will be corrected when commiting the patches.

> On Thu, Jun 30, 2016 at 06:04:28AM +0200, Armin Krezović wrote:
>> Currently, weston assumes a surface/view is mapped if
>> it has an output assigned. In a zero outputs scenario,
>> this isn't really desirable.
>>
>> This patch introduces a new flag to weston_surface and
>> weston_view, which has to be set manually to indicate
>> that a surface/view is mapped.
>>
>> v2:
>>
>> - Remove usage of new flags from
>>   weston_{view,surface}_is_mapped at this point. They
>>   will be added after all the implicit mappings have
>>   been introduced
>> - Unmap a surface before unmapping a view so the input
>>   foci is cleaned up properly
>> - Remove implicit view mapping from view_list_add
>> - Cosmetic fixes
>>
>> v3:
>>
>> - Rebased to apply on git master
>>
>> Signed-off-by: Armin Krezović <krezovic.armin at gmail.com>
>> ---
>>  libweston/compositor.c  | 15 ++++++---------
>>  libweston/compositor.h  |  4 ++++
>>  libweston/data-device.c |  2 ++
>>  libweston/input.c       |  2 ++
>>  4 files changed, 14 insertions(+), 9 deletions(-)
>>
>> diff --git a/libweston/compositor.c b/libweston/compositor.c
>> index 37d94ec..93371b1 100644
>> --- a/libweston/compositor.c
>> +++ b/libweston/compositor.c
>> @@ -1735,6 +1735,7 @@ weston_view_unmap(struct weston_view *view)
>>  	weston_view_damage_below(view);
>>  	view->output = NULL;
>>  	view->plane = NULL;
>> +	view->is_mapped = false;
>>  	weston_layer_entry_remove(&view->layer_link);
>>  	wl_list_remove(&view->link);
>>  	wl_list_init(&view->link);
>> @@ -1764,6 +1765,7 @@ weston_surface_unmap(struct weston_surface *surface)
>>  {
>>  	struct weston_view *view;
>>  
>> +	surface->is_mapped = false;
>>  	wl_list_for_each(view, &surface->views, surface_link)
>>  		weston_view_unmap(view);
>>  	surface->output = NULL;
>> @@ -2128,6 +2130,7 @@ view_list_add_subsurface_view(struct weston_compositor *compositor,
>>  
>>  	view->parent_view = parent;
>>  	weston_view_update_transform(view);
>> +	view->is_mapped = true;
>>  
>>  	if (wl_list_empty(&sub->surface->subsurface_list)) {
>>  		wl_list_insert(compositor->view_list.prev, &view->link);
>> @@ -3241,7 +3244,6 @@ subsurface_get_label(struct weston_surface *surface, char *buf, size_t len)
>>  static void
>>  subsurface_configure(struct weston_surface *surface, int32_t dx, int32_t dy)
>>  {
>> -	struct weston_compositor *compositor = surface->compositor;
>>  	struct weston_view *view;
>>  
>>  	wl_list_for_each(view, &surface->views, surface_link)
>> @@ -3253,8 +3255,9 @@ subsurface_configure(struct weston_surface *surface, int32_t dx, int32_t dy)
>>  	 * mapped, parent is not in a visible layer, so this sub-surface
>>  	 * will not be drawn either.
>>  	 */
>> +
>>  	if (!weston_surface_is_mapped(surface)) {
>> -		struct weston_output *output;
>> +		surface->is_mapped = true;
>>  
>>  		/* Cannot call weston_view_update_transform(),
>>  		 * because that would call it also for the parent surface,
>> @@ -3262,17 +3265,11 @@ subsurface_configure(struct weston_surface *surface, int32_t dx, int32_t dy)
>>  		 * inconsistent state, where the window could never be
>>  		 * mapped.
>>  		 *
>> -		 * Instead just assign any output, to make
>> +		 * Instead just force the is_mapped flag on, to make
>>  		 * weston_surface_is_mapped() return true, so that when the
>>  		 * parent surface does get mapped, this one will get
>>  		 * included, too. See view_list_add().
>>  		 */
>> -		assert(!wl_list_empty(&compositor->output_list));
>> -		output = container_of(compositor->output_list.next,
>> -				      struct weston_output, link);
>> -
>> -		surface->output = output;
>> -		weston_surface_update_output_mask(surface, 1u << output->id);
>>  	}
>>  }
>>  
>> diff --git a/libweston/compositor.h b/libweston/compositor.h
>> index 9e5155c..8770982 100644
>> --- a/libweston/compositor.h
>> +++ b/libweston/compositor.h
>> @@ -964,6 +964,8 @@ struct weston_view {
>>  
>>  	/* Per-surface Presentation feedback flags, controlled by backend. */
>>  	uint32_t psf_flags;
>> +
>> +	bool is_mapped;
>>  };
>>  
>>  struct weston_surface_state {
>> @@ -1082,6 +1084,8 @@ struct weston_surface {
>>  	const char *role_name;
>>  
>>  	struct weston_timeline_object timeline;
>> +
>> +	bool is_mapped;
>>  };
>>  
>>  struct weston_subsurface {
>> diff --git a/libweston/data-device.c b/libweston/data-device.c
>> index f04f030..44a08f9 100644
>> --- a/libweston/data-device.c
>> +++ b/libweston/data-device.c
>> @@ -421,6 +421,8 @@ drag_surface_configure(struct weston_drag *drag,
>>  		weston_layer_entry_insert(list, &drag->icon->layer_link);
>>  		weston_view_update_transform(drag->icon);
>>  		pixman_region32_clear(&es->pending.input);
>> +		es->is_mapped = true;
>> +		drag->icon->is_mapped = true;
>>  	}
>>  
>>  	drag->dx += sx;
>> diff --git a/libweston/input.c b/libweston/input.c
>> index 08378d1..5ccc75f 100644
>> --- a/libweston/input.c
>> +++ b/libweston/input.c
>> @@ -1950,6 +1950,8 @@ pointer_cursor_surface_configure(struct weston_surface *es,
>>  		weston_layer_entry_insert(&es->compositor->cursor_layer.view_list,
>>  					  &pointer->sprite->layer_link);
>>  		weston_view_update_transform(pointer->sprite);
>> +		es->is_mapped = true;
>> +		pointer->sprite->is_mapped = true;
>>  	}
>>  }
>>  
>> -- 
>> 2.9.0
>>
>> _______________________________________________
>> wayland-devel mailing list
>> wayland-devel at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/wayland-devel

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