git-svn-id: svn://db.shs.com.ru/libs@668 a8b55f48-bf90-11e4-a774-851b48703e85

qglengine/glscene.cpp

@@ -171,6 +171,7 @@ void Scene::removeObject(ObjectBase & o, bool inChildren) {
 
 void Scene::clearObjects(bool deleteAll) {
 	root_->clearChildren(deleteAll);
+	cleanUnused();
 	setTreeStructChanged();
 	emitSelectionChanged();
 }
@@ -253,6 +254,20 @@ ObjectBase * Scene::selectedObject() const {
 }
 
 
+void Scene::cleanUnused() {
+	QSet<Mesh*> ums;
+	QMapIterator<int, QMap<Mesh*, ObjectBaseList>> it(geometries_used);
+	while (it.hasNext())
+		ums |= it.next().value().keys().toSet();
+	for (int i = 0; i < geometries.size(); ++i) {
+		if (ums.contains(geometries[i])) continue;
+		td_geometries << geometries[i];
+		geometries.removeAt(i);
+		--i;
+	}
+}
+
+
 const Box3D & Scene::boundingBox() const {
 	root_->calculateBoundingBox();
 	return root_->boundingBox();
@@ -319,25 +334,8 @@ void Scene::attachObject(ObjectBase * o) {
 	if (!o) return;
 	o->setScene(this);
 	if (o->mesh()) { // search suitable mesh in this scene
-		uint ohash = o->mesh()->hash();
-		bool need_new = true;
-		foreach (Mesh * m, geometries) {
-			if (m == o->mesh()) { // already exists by ptr
-				need_new = false;
-				setObjectMeshChanged(o);
-				break;
-			}
-			if (m->hash() == ohash) { // already exists by hash
-				need_new = false;
-				o->setMesh(m);
-				break;
-			}
-		}
-		if (need_new) { // need to clone mesh and add to scene
-			Mesh * nmesh = o->mesh()->clone();
-			o->setMesh(nmesh);
-			geometries << nmesh;
-		}
+		o->mesh_ = attachMesh(o->mesh());
+		setObjectMeshChanged(o);
 	}
 	if (o->material()) { // search suitable material in this scene
 		uint ohash = o->material()->hash();
@@ -361,6 +359,25 @@ void Scene::attachObject(ObjectBase * o) {
 			materials << nmat;
 		}
 	}
+	setTreeStructChanged();
+}
+
+
+Mesh * Scene::attachMesh(Mesh * mesh) {
+	if (!mesh) return 0;
+	uint mhash = mesh->hash();
+	foreach (Mesh * m, geometries) {
+		if (m == mesh) { // already exists by ptr
+			return m;
+		}
+		if (m->hash() == mhash) { // already exists by hash
+			return m;
+		}
+	}
+	// need to clone mesh and add to scene
+	Mesh * nmesh = mesh->clone();
+	geometries << nmesh;
+	return nmesh;
 }
 
 
@@ -421,14 +438,15 @@ bool Scene::prepare() {
 	if (tree_changed) {
 		tree_changed = false;
 		lights_changed = true;
-		if (tree_struct_changed) {
-			tree_struct_changed = false;
-			QMetaObject::invokeMethod(this, "treeChanged", Qt::QueuedConnection);
-		}
 		geometries_used[rpSolid      ].clear();
 		geometries_used[rpTransparent].clear();
 		lights_used.clear();
 		prepareTree(root_);
+		if (tree_struct_changed) {
+			tree_struct_changed = false;
+			cleanUnused();
+			QMetaObject::invokeMethod(this, "treeChanged", Qt::QueuedConnection);
+		}
 	}
 	mat_changed = false;
 	return true;
@@ -440,7 +458,7 @@ void Scene::destroy() {
 	selected_top.clear();
 	emitSelectionChanged();
 	root_->clearChildren(true);
-	qDeleteAll(geometries);
+	td_geometries << geometries;
 	qDeleteAll(materials);
 	geometries.clear();
 	materials.clear();
@@ -449,6 +467,15 @@ void Scene::destroy() {
 }
 
 
+void Scene::destroyUnused(QOpenGLExtraFunctions * f) {
+	if (!td_geometries.isEmpty()) qDebug() << "destroyUnused" << td_geometries.size();
+	foreach (Mesh * i, td_geometries)
+		i->destroy(f);
+	qDeleteAll(td_geometries);
+	td_geometries.clear();
+}
+
+
 QDataStream & operator <<(QDataStream & s, const Scene * p) {
 	ChunkStream cs;
 	//qDebug() << "place" << p->name() << "...";