simgear/scene/tgdb/ShaderGeometry.hxx

   1 /* -*-c++-*-
   2  *
   3  * Copyright (C) 2008 Stuart Buchanan
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of the
   8  * License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  18  * MA 02110-1301, USA.
  19  *
  20  */
  21
  22 #ifndef SHADER_GEOMETRY_HXX
  23 #define SHADER_GEOMETRY_HXX 1
  24
  25 #include <vector>
  26
  27 #include <osg/Array>
  28 #include <osg/BoundingBox>
  29 #include <osg/CopyOp>
  30 #include <osg/Drawable>
  31 #include <osg/Geometry>
  32 #include <osg/RenderInfo>
  33 #include <osg/Vec3>
  34 #include <osg/Vec4>
  35
  36 #include "TreeBin.hxx"
  37
  38 namespace simgear
  39 {
  40
  41 class ShaderGeometry : public osg::Drawable
  42 {
  43     public:
  44         ShaderGeometry() :
  45           varieties(1)
  46         {
  47                 setSupportsDisplayList(false);
  48         }
  49
  50         ShaderGeometry(int v) :
  51           varieties(v)
  52         {
  53                 setSupportsDisplayList(false);
  54         }
  55
  56         /** Copy constructor using CopyOp to manage deep vs shallow copy.*/
  57         ShaderGeometry(const ShaderGeometry& ShaderGeometry,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY):
  58             osg::Drawable(ShaderGeometry,copyop) {}
  59
  60         META_Object(flightgear, ShaderGeometry);
  61
  62         virtual void drawImplementation(osg::RenderInfo& renderInfo) const;
  63         virtual osg::BoundingBox computeBound() const;
  64
  65         void setGeometry(osg::Geometry* geometry)
  66         {
  67             _geometry = geometry;
  68         }
  69
  70         void addTree(const TreeBin::Tree& tree);
  71
  72         osg::ref_ptr<osg::Geometry> _geometry;
  73
  74         int varieties;
  75         osg::ref_ptr<osg::Vec4Array> _posScaleArray;
  76         osg::ref_ptr<osg::FloatArray> _vertexAttribArray;
  77
  78     protected:
  79
  80         virtual ~ShaderGeometry() {}
  81 };
  82
  83 }
  84 #endif