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/scene/util/SGSceneFeatures.hxx>
  15
  16 #include <simgear/structure/exception.hxx>
  17 #include <simgear/props/props.hxx>
  18 #include <simgear/props/props_io.hxx>
  19 #include <simgear/props/condition.hxx>
  20
  21 #include "model.hxx"
  22
  23 using std::vector;
  24
  25 osg::Texture2D*
  26 SGLoadTexture2D(bool staticTexture, const std::string& path,
  27                 const osgDB::ReaderWriter::Options* options,
  28                 bool wrapu, bool wrapv, int)
  29 {
  30   osg::Image* image;
  31   if (options)
  32     image = osgDB::readImageFile(path, options);
  33   else
  34     image = osgDB::readImageFile(path);
  35   osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D;
  36   texture->setImage(image);
  37   if (staticTexture)
  38     texture->setDataVariance(osg::Object::STATIC);
  39   if (wrapu)
  40     texture->setWrap(osg::Texture::WRAP_S, osg::Texture::REPEAT);
  41   else
  42     texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP);
  43   if (wrapv)
  44     texture->setWrap(osg::Texture::WRAP_T, osg::Texture::REPEAT);
  45   else
  46     texture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP);
  47
  48   if (image) {
  49     int s = image->s();
  50     int t = image->t();
  51
  52     if (s <= t && 32 <= s) {
  53       SGSceneFeatures::instance()->setTextureCompression(texture.get());
  54     } else if (t < s && 32 <= t) {
  55       SGSceneFeatures::instance()->setTextureCompression(texture.get());
  56     }
  57   }
  58
  59   return texture.release();
  60 }
  61
  62 // end of model.cxx