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 #include <osg/Version>
  36
  37 namespace simgear
  38 {
  39
  40 class ShaderGeometry : public osg::Drawable
  41 {
  42     public:
  43         ShaderGeometry() :
  44           varieties(1)
  45         {
  46                 setSupportsDisplayList(false);
  47         }
  48
  49         ShaderGeometry(int v) :
  50           varieties(v)
  51         {
  52                 setSupportsDisplayList(false);
  53         }
  54
  55         /** Copy constructor using CopyOp to manage deep vs shallow copy.*/
  56         ShaderGeometry(const ShaderGeometry& ShaderGeometry,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY):
  57             osg::Drawable(ShaderGeometry,copyop) {}
  58
  59         META_Object(flightgear, ShaderGeometry);
  60
  61         virtual void drawImplementation(osg::RenderInfo& renderInfo) const;
  62
  63         virtual osg::BoundingBox
  64 #if OSG_VERSION_LESS_THAN(3,3,2)
  65         computeBound()
  66 #else
  67         computeBoundingBox()
  68 #endif
  69         const;
  70
  71         void setGeometry(osg::Geometry* geometry)
  72         {
  73             _geometry = geometry;
  74         }
  75
  76     void addObject(const osg::Vec3& position, float scale, int texture_index);
  77
  78         osg::ref_ptr<osg::Geometry> _geometry;
  79
  80         int varieties;
  81         osg::ref_ptr<osg::Vec4Array> _posScaleArray;
  82         osg::ref_ptr<osg::FloatArray> _vertexAttribArray;
  83
  84     protected:
  85
  86         virtual ~ShaderGeometry() {}
  87 };
  88
  89 }
  90 #endif