source: experimental/distortionNG/DistortionSet.cpp @ 418

/* -*-c++-*- osgVisual - Copyright (C) 2009-2012 Torben Dannhauer
 *
 * This library is based on OpenSceneGraph, 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.
 *
 * osgVisual requires for some proprietary modules a license from the correspondig manufacturer.
 * You have to aquire licenses for all used proprietary modules.
 * 
 * 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 "DistortionSet.h"
#include <osgDB/ObjectWrapper>
#include <osgDB/InputStream>
#include <osgDB/OutputStream>

using namespace osgViewer;

DistortionSet::DistortionSet()
{
        _meshDirty = false;
        _matrixDirty = false;

        setDistortionMeshDimensions(2, 2);
        
        _intensityMap = NULL;
        _texUnitScene = 0;
        _texUnitIntensityMap = 1;

        _viewOffset = osg::Matrixd::identity();
        _projectionOffset = osg::Matrixd::identity();

        _showIntesityMapMapOnly = false;

        _sceneCamera = NULL;
        _distortionCamera = NULL;
        _distortionInternals = NULL;

        _distortionInternals = new osg::Switch();

}

DistortionSet::~DistortionSet()
{
}

void DistortionSet::setDistortionMeshDimensions(int rows, int cols, bool enforceMeshRebuild)
{
        _distortionMeshRows = rows;
        _distortionMeshColumns = cols;

        if(!_distortionMesh.valid() || enforceMeshRebuild || _distortionMesh->size() != _distortionMeshRows * _distortionMeshColumns)   // If dimensions differ: discard current mesh and create a new one
        {
                _distortionMesh = new osg::Vec4Array(_distortionMeshRows * _distortionMeshColumns);
                for(int row=0;row<_distortionMeshRows;row++)
                {
                        for(int col=0;col<_distortionMeshColumns;col++)
                        {
                                float x=col/(float)(_distortionMeshColumns-1);  // Vertex X
                                float y=row/(float)(_distortionMeshRows-1);     // Vertex Y
                                float z=col/(float)(_distortionMeshColumns-1);  // TexCoord X
                                float w=row/(float)(_distortionMeshRows-1);     // TexCoord Y

                                _distortionMesh->at(row*_distortionMeshColumns+col).set(x,y,z,w);
                        }
                }
        }
}


REGISTER_OBJECT_WRAPPER( osgViewer_DistortionSet,                  // The unique wrapper name
                         new osgViewer::DistortionSet,             // The proto
                         osgViewer::DistortionSet,                 // The class typename
                         "osg::Object osgViewer::DistortionSet" )  // The inheritance relations
{
    // Serializers for different members
        ADD_INT_SERIALIZER( DistortionMeshRows, 1 );    //int _distortionMeshRows;
        ADD_INT_SERIALIZER( DistortionMeshColumns, 1 ); //int _distortionMeshColumns;
        ADD_OBJECT_SERIALIZER( DistortionMesh, osg::Vec4Array, NULL );  // x,y = vertex coordinates, z,t=textureCoordinates, Werte sind normalisiert auf 0-1

    ADD_GLENUM_SERIALIZER( MeshType, GLenum, GL_QUAD_STRIP );  //osg::PrimitiveSet::Mode _MeshType
        
        ADD_IMAGE_SERIALIZER( IntensityMap, osg::Image, NULL );  //osg::ref_ptr<osg::Image> _intensityMap;

        ADD_UINT_SERIALIZER( TexUnitScene, 0 ); //unsigned int _texUnitScene;
        ADD_UINT_SERIALIZER( TexUnitIntensityMap, 1 );  //unsigned int _texUnitIntensityMap;

        ADD_MATRIX_SERIALIZER( ViewOffset, osg::Matrix() );     //osg::Matrix _viewOffset;
        ADD_MATRIX_SERIALIZER( ProjectionOffset, osg::Matrix() );       //osg::Matrix _projectionOffset;

        ADD_BOOL_SERIALIZER( ShowIntensityMapOnly, false );     //bool _showIntesityMapMapOnly
}