Geometry Nodes: initial socket inspection

Socket inspection helps with debugging a geometry node group.
Now, when hovering over a socket, a tooltip will appear that provides
information about the data in the socket. Note, socket inspection only
works for sockets that have been computed already. Nodes that are not
connected to an output are not computed.

Future improvements can include ui changes to make the tooltip look
more like in the original design (T85251). Furthermore, additional
information could be shown if necessary.

Differential Revision: https://developer.blender.org/D11842

2 files changed, 49 insertions, 0 deletions

diff --git a/source/blender/nodes/NOD_geometry_nodes_eval_log.hh b/source/blender/nodes/NOD_geometry_nodes_eval_log.hh
index 1c4590f96ac..b85862a0176 100644
--- a/source/blender/nodes/NOD_geometry_nodes_eval_log.hh
+++ b/source/blender/nodes/NOD_geometry_nodes_eval_log.hh
@@ -90,6 +90,24 @@ class GeometryValueLog : public ValueLog {
   std::unique_ptr<GeometrySet> full_geometry_;
 
  public:
+  struct MeshInfo {
+    int tot_verts, tot_edges, tot_faces;
+  };
+  struct CurveInfo {
+    int tot_splines;
+  };
+  struct PointCloudInfo {
+    int tot_points;
+  };
+  struct InstancesInfo {
+    int tot_instances;
+  };
+
+  std::optional<MeshInfo> mesh_info;
+  std::optional<CurveInfo> curve_info;
+  std::optional<PointCloudInfo> pointcloud_info;
+  std::optional<InstancesInfo> instances_info;
+
   GeometryValueLog(const GeometrySet &geometry_set, bool log_full_geometry);
 
   Span<GeometryAttributeInfo> attributes() const
diff --git a/source/blender/nodes/intern/geometry_nodes_eval_log.cc b/source/blender/nodes/intern/geometry_nodes_eval_log.cc
index 85182b67c8a..3024cc51cad 100644
--- a/source/blender/nodes/intern/geometry_nodes_eval_log.cc
+++ b/source/blender/nodes/intern/geometry_nodes_eval_log.cc
@@ -150,6 +150,37 @@ GeometryValueLog::GeometryValueLog(const GeometrySet &geometry_set, bool log_ful
       8);
   for (const GeometryComponent *component : geometry_set.get_components_for_read()) {
     component_types_.append(component->type());
+    switch (component->type()) {
+      case GEO_COMPONENT_TYPE_MESH: {
+        const MeshComponent &mesh_component = *(const MeshComponent *)component;
+        MeshInfo &info = this->mesh_info.emplace();
+        info.tot_verts = mesh_component.attribute_domain_size(ATTR_DOMAIN_POINT);
+        info.tot_edges = mesh_component.attribute_domain_size(ATTR_DOMAIN_EDGE);
+        info.tot_faces = mesh_component.attribute_domain_size(ATTR_DOMAIN_FACE);
+        break;
+      }
+      case GEO_COMPONENT_TYPE_CURVE: {
+        const CurveComponent &curve_component = *(const CurveComponent *)component;
+        CurveInfo &info = this->curve_info.emplace();
+        info.tot_splines = curve_component.attribute_domain_size(ATTR_DOMAIN_CURVE);
+        break;
+      }
+      case GEO_COMPONENT_TYPE_POINT_CLOUD: {
+        const PointCloudComponent &pointcloud_component = *(const PointCloudComponent *)component;
+        PointCloudInfo &info = this->pointcloud_info.emplace();
+        info.tot_points = pointcloud_component.attribute_domain_size(ATTR_DOMAIN_POINT);
+        break;
+      }
+      case GEO_COMPONENT_TYPE_INSTANCES: {
+        const InstancesComponent &instances_component = *(const InstancesComponent *)component;
+        InstancesInfo &info = this->instances_info.emplace();
+        info.tot_instances = instances_component.instances_amount();
+        break;
+      }
+      case GEO_COMPONENT_TYPE_VOLUME: {
+        break;
+      }
+    }
   }
   if (log_full_geometry) {
     full_geometry_ = std::make_unique<GeometrySet>(geometry_set);