simgear/scene/model/model.cxx

   1 // model.cxx - manage a 3D aircraft model.
   2 // Written by David Megginson, started 2002.
   3 //
   4 // This file is in the Public Domain, and comes with no warranty.
   5
   6 #ifdef HAVE_CONFIG_H
   7 #include <simgear_config.h>
   8 #endif
   9
  10 #include <osg/ref_ptr>
  11 #include <osgDB/ReadFile>
  12 #include <osgDB/SharedStateManager>
  13
  14 #include <simgear/math/SGMath.hxx>
  15 #include <simgear/scene/util/SGSceneFeatures.hxx>
  16
  17 #include <simgear/structure/exception.hxx>
  18 #include <simgear/props/props.hxx>
  19 #include <simgear/props/props_io.hxx>
  20 #include <simgear/props/condition.hxx>
  21
  22 #include "model.hxx"
  23
  24 using std::vector;
  25
  26 osg::Texture2D*
  27 SGLoadTexture2D(bool staticTexture, const std::string& path,
  28                 const osgDB::ReaderWriter::Options* options,
  29                 bool wrapu, bool wrapv, int)
  30 {
  31   osg::Image* image;
  32   if (options)
  33     image = osgDB::readImageFile(path, options);
  34   else
  35     image = osgDB::readImageFile(path);
  36   osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D;
  37   texture->setImage(image);
  38   if (staticTexture)
  39     texture->setDataVariance(osg::Object::STATIC);
  40   if (wrapu)
  41     texture->setWrap(osg::Texture::WRAP_S, osg::Texture::REPEAT);
  42   else
  43     texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP);
  44   if (wrapv)
  45     texture->setWrap(osg::Texture::WRAP_T, osg::Texture::REPEAT);
  46   else
  47     texture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP);
  48
  49   if (image) {
  50     int s = image->s();
  51     int t = image->t();
  52
  53     if (s <= t && 32 <= s) {
  54       SGSceneFeatures::instance()->setTextureCompression(texture.get());
  55     } else if (t < s && 32 <= t) {
  56       SGSceneFeatures::instance()->setTextureCompression(texture.get());
  57     }
  58   }
  59
  60   return texture.release();
  61 }
  62
  63 // end of model.cxx