simgear/scene/tgdb/SGReaderWriterBTG.cxx

   1 // Copyright (C) 2007 Tim Moore timoore@redhat.com
   2 //
   3 // This program is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU General Public License as
   5 // published by the Free Software Foundation; either version 2 of the
   6 // License, or (at your option) any later version.
   7 //
   8 // This program is distributed in the hope that it will be useful, but
   9 // WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU General Public License
  14 // along with this program; if not, write to the Free Software
  15 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  16 //
  17
  18 #include <osgDB/FileNameUtils>
  19 #include <osgDB/Registry>
  20
  21 #include <simgear/scene/model/ModelRegistry.hxx>
  22
  23 #include "SGReaderWriterBTGOptions.hxx"
  24 #include "SGReaderWriterBTG.hxx"
  25 #include "obj.hxx"
  26
  27 using namespace simgear;
  28
  29 // SGReaderWriterBTGOptions static value here to avoid an additional,
  30 // tiny source file.
  31
  32 std::string SGReaderWriterBTGOptions::defaultOptions;
  33
  34 SGReaderWriterBTG::SGReaderWriterBTG()
  35 {
  36     supportsExtension("btg", "SimGear btg database format");
  37 }
  38
  39 SGReaderWriterBTG::~SGReaderWriterBTG()
  40 {
  41 }
  42
  43 const char* SGReaderWriterBTG::className() const
  44 {
  45     return "BTG Database reader";
  46 }
  47
  48 osgDB::ReaderWriter::ReadResult
  49 SGReaderWriterBTG::readNode(const std::string& fileName,
  50                             const osgDB::ReaderWriter::Options* options) const
  51 {
  52     SGMaterialLib* matlib = 0;
  53     bool calcLights = false;
  54     bool useRandomObjects = false;
  55     bool useRandomVegetation = false;
  56     const SGReaderWriterBTGOptions* btgOptions
  57         = dynamic_cast<const SGReaderWriterBTGOptions*>(options);
  58     if (btgOptions) {
  59         matlib = btgOptions->getMatlib();
  60         calcLights = btgOptions->getCalcLights();
  61         useRandomObjects = btgOptions->getUseRandomObjects();
  62         useRandomVegetation = btgOptions->getUseRandomVegetation();
  63     }
  64     osg::Node* result = SGLoadBTG(fileName, matlib, calcLights,
  65                                   useRandomObjects,
  66                                   useRandomVegetation);
  67     if (result)
  68         return result;
  69     else
  70         return ReadResult::FILE_NOT_HANDLED;
  71 }
  72
  73
  74 typedef ModelRegistryCallback<DefaultProcessPolicy, NoCachePolicy,
  75                               NoOptimizePolicy, NoCopyPolicy,
  76                               NoSubstitutePolicy, BuildGroupBVHPolicy>
  77 BTGCallback;
  78
  79 namespace
  80 {
  81 ModelRegistryCallbackProxy<BTGCallback> g_btgCallbackProxy("btg");
  82 }