101 lines
3.0 KiB
C++
101 lines
3.0 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
|
|
#include "Exception.h"
|
|
#include "VolumeTile.h"
|
|
#include "Group.h"
|
|
#include "VolumeLayer.h"
|
|
|
|
#include <osgVolume/RayTracedTechnique>
|
|
#include <osgVolume/FixedFunctionTechnique>
|
|
|
|
using namespace ive;
|
|
|
|
void VolumeTile::write(DataOutputStream* out)
|
|
{
|
|
// Write VolumeTile's identification.
|
|
out->writeInt(IVEVOLUMETILE);
|
|
// If the osg class is inherited by any other class we should also write this to file.
|
|
osg::Group* group = dynamic_cast<osg::Group*>(this);
|
|
if(group)
|
|
((ive::Group*)(group))->write(out);
|
|
else
|
|
out_THROW_EXCEPTION("VolumeTile::write(): Could not cast this osgVolume::VolumeTile to an osg::Group.");
|
|
|
|
|
|
out->writeVolumeLocator(getLocator());
|
|
out->writeVolumeLayer(getLayer());
|
|
|
|
writeVolumeTechnique(out, getVolumeTechnique());
|
|
|
|
}
|
|
|
|
void VolumeTile::read(DataInputStream* in)
|
|
{
|
|
// Peek on VolumeTile's identification.
|
|
int id = in->peekInt();
|
|
if (id != IVEVOLUMETILE) in_THROW_EXCEPTION("VolumeTile::read(): Expected Volume identification.");
|
|
|
|
// Read VolumeTile's identification.
|
|
id = in->readInt();
|
|
// If the osg class is inherited by any other class we should also read this from file.
|
|
osg::Group* group = dynamic_cast<osg::Group*>(this);
|
|
if(group)
|
|
((ive::Group*)(group))->read(in);
|
|
else
|
|
in_THROW_EXCEPTION("VolumeTile::read(): Could not cast this osgVolume::VolumeTile to an osg::Group.");
|
|
|
|
setLocator(in->readVolumeLocator());
|
|
setLayer(in->readVolumeLayer());
|
|
|
|
setVolumeTechnique(readVolumeTechnique(in));
|
|
}
|
|
|
|
void VolumeTile::writeVolumeTechnique(DataOutputStream* out, osgVolume::VolumeTechnique* technique)
|
|
{
|
|
if (dynamic_cast<osgVolume::RayTracedTechnique*>(technique))
|
|
{
|
|
out->writeBool(true);
|
|
out->writeInt(IVEVOLUMERAYTRACEDTECHNIQUE);
|
|
}
|
|
if (dynamic_cast<osgVolume::FixedFunctionTechnique*>(technique))
|
|
{
|
|
out->writeBool(true);
|
|
out->writeInt(IVEVOLUMEFIXEDPIPELINETECHNIQUE);
|
|
}
|
|
else
|
|
{
|
|
out->writeBool(false);
|
|
}
|
|
}
|
|
|
|
osgVolume::VolumeTechnique* VolumeTile::readVolumeTechnique(DataInputStream* in)
|
|
{
|
|
bool hasTechnique = in->readBool();
|
|
if (!hasTechnique) return 0;
|
|
|
|
int id = in->readInt();
|
|
if (id==IVEVOLUMERAYTRACEDTECHNIQUE)
|
|
{
|
|
return new osgVolume::RayTracedTechnique;
|
|
}
|
|
else if (id==IVEVOLUMEFIXEDPIPELINETECHNIQUE)
|
|
{
|
|
return new osgVolume::FixedFunctionTechnique;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|