James Turner
f25c0c60a8
We already request OSG to use UTF8 paths, so ensure whenever we pass an SGPath to OSG, we use the correct conversion function.
128 lines
3.9 KiB
C++
128 lines
3.9 KiB
C++
// matlib.hxx -- class to handle material properties
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//
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// Written by Curtis Olson, started May 1998.
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//
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// Copyright (C) 1998 - 2000 Curtis L. Olson - http://www.flightgear.org/~curt
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#ifndef _MATLIB_HXX
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#define _MATLIB_HXX
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#include <simgear/compiler.h>
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#include <simgear/structure/SGReferenced.hxx>
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#include <simgear/structure/SGSharedPtr.hxx>
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#include <simgear/math/SGMath.hxx>
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#include <memory>
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#include <string> // Standard C++ string library
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#include <map> // STL associative "array"
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#include <vector> // STL "array"
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class SGMaterial;
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class SGPropertyNode;
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class SGPath;
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namespace simgear { class Effect; }
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namespace osg { class Geode; }
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// Material cache class
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class SGMaterialCache : public osg::Referenced
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{
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private:
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typedef std::map < std::string, SGSharedPtr<SGMaterial> > material_cache;
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material_cache cache;
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public:
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// Constructor
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SGMaterialCache ( void );
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// Insertion
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void insert( const std::string& name, SGSharedPtr<SGMaterial> material );
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// Lookup
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SGMaterial *find( const std::string& material ) const;
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// Destructor
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~SGMaterialCache ( void );
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};
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// Material management class
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class SGMaterialLib : public SGReferenced
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{
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private:
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class MatLibPrivate;
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std::unique_ptr<MatLibPrivate> d;
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// associative array of materials
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typedef std::vector< SGSharedPtr<SGMaterial> > material_list;
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typedef material_list::iterator material_list_iterator;
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typedef std::map < std::string, material_list> material_map;
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typedef material_map::iterator material_map_iterator;
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typedef material_map::const_iterator const_material_map_iterator;
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material_map matlib;
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public:
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// Constructor
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SGMaterialLib ( void );
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// Load a library of material properties
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bool load( const SGPath &fg_root, const SGPath& mpath,
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SGPropertyNode *prop_root );
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// find a material record by material name
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SGMaterial *find( const std::string& material, SGVec2f center ) const;
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SGMaterial *find( const std::string& material, const SGGeod& center ) const;
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/**
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* Material lookup involves evaluation of position and SGConditions to
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* determine which possible material (by season, region, etc) is valid.
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* This involves property tree queries, so repeated calls to find() can cause
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* race conditions when called from the osgDB pager thread. (especially
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* during startup)
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*
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* To fix this, and also avoid repeated re-evaluation of the material
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* conditions, we provide factory method to generate a material library
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* cache of the valid materials based on the current state and a given position.
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*/
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SGMaterialCache *generateMatCache( SGVec2f center);
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SGMaterialCache *generateMatCache( SGGeod center);
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material_map_iterator begin() { return matlib.begin(); }
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const_material_map_iterator begin() const { return matlib.begin(); }
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material_map_iterator end() { return matlib.end(); }
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const_material_map_iterator end() const { return matlib.end(); }
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static const SGMaterial *findMaterial(const osg::Geode* geode);
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// Destructor
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~SGMaterialLib ( void );
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};
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typedef SGSharedPtr<SGMaterialLib> SGMaterialLibPtr;
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#endif // _MATLIB_HXX
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