simgear/scene/material/GLPredicate.cxx

   1 #include <simgear/scene/material/GLPredicate.hxx>
   2
   3 #include <algorithm>
   4 #include <boost/bind.hpp>
   5
   6 #include <osg/GLExtensions>
   7 #include <osg/Math>
   8
   9 namespace simgear
  10 {
  11 using namespace std;
  12 using namespace osg;
  13 using namespace boost;
  14
  15 bool GLPredicate::operator ()(unsigned int contextID)
  16 {
  17     float versionNumber = getGLVersionNumber() * 10.0f;
  18     float required = (static_cast<float>(majorVersion) * 10.0f
  19                       + static_cast<float>(minorVersion));
  20     if (versionNumber < required
  21         && !osg::equivalent(versionNumber, required))
  22         return false;
  23     return (find_if(extensions.begin(), extensions.end(),
  24                     !bind(isGLExtensionSupported, contextID,
  25                           bind(&string::c_str, _1)))
  26             == extensions.end());
  27 }
  28 }