first commit

2022-10-20 20:29:11 +08:00
commit 4d531f8044
3238 changed files with 1387862 additions and 0 deletions
--- a/src/Scripting/NasalModelData.hxx
+++ b/src/Scripting/NasalModelData.hxx
@@ -0,0 +1,104 @@
+// Copyright (C) 2013  James Turner
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+#ifndef NASAL_MODEL_DATA_HXX
+#define NASAL_MODEL_DATA_HXX
+
+#include <simgear/nasal/nasal.h>
+#include <simgear/scene/model/modellib.hxx>
+
+class FGNasalModelData;
+typedef SGSharedPtr<FGNasalModelData> FGNasalModelDataRef;
+typedef std::list<FGNasalModelData*> FGNasalModelDataList;
+
+/** Nasal model data container.
+ * load and unload methods must be run in main thread (not thread-safe). */
+class FGNasalModelData : public SGReferenced
+{
+public:
+    /** Constructor to be run in an arbitrary thread. */
+    FGNasalModelData( SGPropertyNode *root,
+                      const std::string& path,
+                      SGPropertyNode *prop,
+                      SGPropertyNode* load,
+                      SGPropertyNode* unload,
+                      osg::Node* branch );
+    
+    ~FGNasalModelData();
+
+    /** Load hook. Always call from inside the main loop. */
+    void load();
+    
+    /** Unload hook. Always call from inside the main loop. */
+    void unload();
+    
+    /**
+     * Get osg scenegraph node of model
+     */
+    osg::Node* getNode();
+
+    /**
+     * Get FGNasalModelData for model with the given module id. Every scenery
+     * model containing a nasal load or unload tag gets assigned a module id
+     * automatically.
+     *
+     * @param id    Module id
+     * @return model data or NULL if does not exists
+     */
+    static FGNasalModelData* getByModuleId(unsigned int id);
+
+private:
+    static unsigned int _max_module_id;
+    static FGNasalModelDataList _loaded_models;
+
+    std::string _module, _path;
+    SGPropertyNode_ptr _root, _prop;
+    SGConstPropertyNode_ptr _load, _unload;
+    osg::ref_ptr<osg::Node> _branch;
+    unsigned int _module_id;
+};
+
+/** Thread-safe proxy for FGNasalModelData.
+ * modelLoaded/destroy methods only register the requested
+ * operation. Actual (un)loading of Nasal module is deferred
+ * and done in the main loop. */
+class FGNasalModelDataProxy : public simgear::SGModelData
+{
+public:
+    FGNasalModelDataProxy(SGPropertyNode *root = 0) :
+    _root(root), _data(0)
+    {
+    }
+    
+    ~FGNasalModelDataProxy();
+    
+    void modelLoaded( const std::string& path,
+                      SGPropertyNode *prop,
+                      osg::Node *branch );
+    
+    virtual FGNasalModelDataProxy* clone() const { return new FGNasalModelDataProxy(_root); }
+
+    ErrorContext getErrorContext() const override
+    {
+        return {}; // return nothing for now, not yet clear if this proxy needs it
+    }
+
+protected:
+    SGPropertyNode_ptr _root;
+    FGNasalModelDataRef _data;
+};
+
+#endif // of NASAL_MODEL_DATA_HXX