evas_render: Use hardware planes

This is a very simple proof of concept for using hardware planes for
evas image objects.

Right now only dmabuf objects will be dropped into planes, and they're
considered in the order they're in in the scene graph with no attention
paid to which objects will have the most benefit from being on a plane
at all.  There's nothing to prevent your mouse cursor from consuming the
only hardware plane capable of UHD video. :)

This is mostly just to help test the low level functionality in the
engines and ecore_drm2 that enable hardware planes.  Smarter plane usage
is coming.

1 files changed, 28 insertions, 0 deletions

diff --git a/src/lib/evas/canvas/evas_render.c b/src/lib/evas/canvas/evas_render.c
index bb84209109..e02ee0d5ef 100644
--- a/src/lib/evas/canvas/evas_render.c
+++ b/src/lib/evas/canvas/evas_render.c
@@ -1360,6 +1360,9 @@ _evas_render_can_use_overlay(Evas_Public_Data *e, Evas_Object *eo_obj)
    Eina_Bool surface_below, stacking_check, object_above = EINA_FALSE;
    Eina_Bool ignore_window;
 
+   if (!_evas_object_image_can_use_plane(obj))
+     return EINA_FALSE;
+
    video_parent = _evas_object_image_video_parent_get(eo_obj);
 
    /* Check if any one is the stack make this object mapped */
@@ -3075,6 +3078,7 @@ evas_render_updates_internal(Evas *eo_e,
    unsigned int i;
    Phase1_Context p1ctx;
    int redraw_all = 0;
+   Evas_Active_Entry *ao;
    Evas_Render_Mode render_mode = !do_async ?
      EVAS_RENDER_MODE_SYNC :
      EVAS_RENDER_MODE_ASYNC_INIT;
@@ -3157,6 +3161,30 @@ evas_render_updates_internal(Evas *eo_e,
         else
           _evas_object_image_video_overlay_hide(eo_obj);
      }
+
+   /* check if individual image objects can be dropped into hardware planes */
+   if (ENFN->image_plane_assign)
+     EINA_INARRAY_FOREACH(&evas->active_objects, ao)
+       {
+          Evas_Object_Protected_Data *obj;
+          Evas_Object *eo_obj;
+
+          obj = ao->obj;
+          eo_obj = obj->object;
+
+          if (!efl_isa(eo_obj, EFL_CANVAS_IMAGE_INTERNAL_CLASS)) continue;
+
+          if (evas_object_image_video_surface_get(eo_obj)) continue;
+
+          _evas_object_image_plane_release(eo_obj, obj);
+          if (!_evas_render_can_use_overlay(e, eo_obj))
+            {
+               /* This may free up things temporarily allocated by
+                * _can_use_overlay() testing in the engine */
+               _evas_object_image_plane_release(eo_obj, obj);
+            }
+       }
+
    eina_evlog("+render_phase1_direct", eo_e, 0.0, NULL);
    /* phase 1.8. pre render for proxy */
    _evas_render_phase1_direct(e, &e->active_objects, &e->restack_objects,