surface_radiance.cpp 8.34 KB
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#include "surface_radiance.h"

#include "mapHandler.h"
#include "camera.h"

#include <QFileDialog>
#include <QFileInfo>

namespace CGoGN
{

namespace SCHNApps
{

bool Surface_Radiance_Plugin::enable()
{
	//	magic line that init static variables of GenericMap in the plugins
	GenericMap::copyAllStatics(m_schnapps->getStaticPointers());

	m_dockTab = new Surface_Radiance_DockTab(m_schnapps, this);
	m_schnapps->addPluginDockTab(this, m_dockTab, "Surface_Radiance");

	connect(m_schnapps, SIGNAL(selectedViewChanged(View*, View*)), this, SLOT(selectedViewChanged(View*, View*)));
	connect(m_schnapps, SIGNAL(selectedMapChanged(MapHandlerGen*, MapHandlerGen*)), this, SLOT(selectedMapChanged(MapHandlerGen*, MapHandlerGen*)));
	connect(m_schnapps, SIGNAL(mapAdded(MapHandlerGen*)), this, SLOT(mapAdded(MapHandlerGen*)));
	connect(m_schnapps, SIGNAL(mapRemoved(MapHandlerGen*)), this, SLOT(mapRemoved(MapHandlerGen*)));

	foreach(MapHandlerGen* map, m_schnapps->getMapSet().values())
		mapAdded(map);

	m_dockTab->updateMapParameters();

	m_importAction = new QAction("import", this);
	m_schnapps->addMenuAction(this, "Radiance;Import", m_importAction);
	connect(m_importAction, SIGNAL(triggered()), this, SLOT(importFromFileDialog()));

	return true;
}

void Surface_Radiance_Plugin::disable()
{
	disconnect(m_schnapps, SIGNAL(selectedViewChanged(View*, View*)), this, SLOT(selectedViewChanged(View*, View*)));
	disconnect(m_schnapps, SIGNAL(selectedMapChanged(MapHandlerGen*, MapHandlerGen*)), this, SLOT(selectedMapChanged(MapHandlerGen*, MapHandlerGen*)));
	disconnect(m_schnapps, SIGNAL(mapAdded(MapHandlerGen*)), this, SLOT(mapAdded(MapHandlerGen*)));
	disconnect(m_schnapps, SIGNAL(mapRemoved(MapHandlerGen*)), this, SLOT(mapRemoved(MapHandlerGen*)));

	foreach(MapHandlerGen* map, m_schnapps->getMapSet().values())
		mapRemoved(map);
}

void Surface_Radiance_Plugin::drawMap(View* view, MapHandlerGen* map)
{
	const MapParameters& p = h_mapParameterSet[map];

	if(p.positionVBO && p.normalVBO)
	{
		p.radiancePerVertexShader->setAttributePosition(p.positionVBO);
		p.radiancePerVertexShader->setAttributeNormal(p.normalVBO);

		qglviewer::Vec c = view->getCurrentCamera()->position();
		PFP2::VEC3 camera(c.x, c.y, c.z);
		p.radiancePerVertexShader->setCamera(camera);

		glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
		glEnable(GL_POLYGON_OFFSET_FILL);
		glPolygonOffset(1.0f, 1.0f);
		map->draw(p.radiancePerVertexShader, Algo::Render::GL2::TRIANGLES);
		glDisable(GL_POLYGON_OFFSET_FILL);
	}
}





void Surface_Radiance_Plugin::selectedViewChanged(View *prev, View *cur)
{
	m_dockTab->updateMapParameters();
}

void Surface_Radiance_Plugin::selectedMapChanged(MapHandlerGen *prev, MapHandlerGen *cur)
{
	m_dockTab->updateMapParameters();
	if (cur == NULL)
		m_dockTab->setDisabled(true);
	else
		m_dockTab->setDisabled(false);
}

void Surface_Radiance_Plugin::mapAdded(MapHandlerGen* map)
{
	connect(map, SIGNAL(vboAdded(Utils::VBO*)), this, SLOT(vboAdded(Utils::VBO*)));
	connect(map, SIGNAL(vboRemoved(Utils::VBO*)), this, SLOT(vboRemoved(Utils::VBO*)));
	connect(map, SIGNAL(attributeModified(unsigned int, QString)), this, SLOT(attributeModified(unsigned int, QString)));
}

void Surface_Radiance_Plugin::mapRemoved(MapHandlerGen* map)
{
	disconnect(map, SIGNAL(vboAdded(Utils::VBO*)), this, SLOT(vboAdded(Utils::VBO*)));
	disconnect(map, SIGNAL(vboRemoved(Utils::VBO*)), this, SLOT(vboRemoved(Utils::VBO*)));
	disconnect(map, SIGNAL(attributeModified(unsigned int, QString)), this, SLOT(attributeModified(unsigned int, QString)));
}





void Surface_Radiance_Plugin::vboAdded(Utils::VBO *vbo)
{
	MapHandlerGen* map = static_cast<MapHandlerGen*>(QObject::sender());

	if(map == m_schnapps->getSelectedMap())
	{
		if(vbo->dataSize() == 3)
		{
			m_dockTab->addPositionVBO(QString::fromStdString(vbo->name()));
			m_dockTab->addNormalVBO(QString::fromStdString(vbo->name()));
		}
	}
}

void Surface_Radiance_Plugin::vboRemoved(Utils::VBO *vbo)
{
	MapHandlerGen* map = static_cast<MapHandlerGen*>(QObject::sender());

	if(map == m_schnapps->getSelectedMap())
	{
		if(vbo->dataSize() == 3)
		{
			m_dockTab->removePositionVBO(QString::fromStdString(vbo->name()));
			m_dockTab->removeNormalVBO(QString::fromStdString(vbo->name()));
		}
	}

	MapParameters& mapParam = h_mapParameterSet[map];
	if(mapParam.positionVBO == vbo)
	{
		mapParam.positionVBO = NULL;
	}
	if(mapParam.normalVBO == vbo)
	{
		mapParam.normalVBO = NULL;
	}
}

void Surface_Radiance_Plugin::attributeModified(unsigned int orbit, QString nameAttr)
{
	if(orbit == VERTEX)
	{

	}
}

void Surface_Radiance_Plugin::importFromFileDialog()
{
	QStringList fileNames = QFileDialog::getOpenFileNames(m_schnapps, "Import surface with radiance", m_schnapps->getAppPath(), "Surface with radiance Files (*.ply)");
	QStringList::Iterator it = fileNames.begin();
	while(it != fileNames.end()) {
		importFromFile(*it);
		++it;
	}
}





void Surface_Radiance_Plugin::changePositionVBO(const QString& map, const QString& vbo)
{
	MapHandlerGen* m = m_schnapps->getMap(map);
	if(m)
	{
		Utils::VBO* vbuf = m->getVBO(vbo);
		h_mapParameterSet[m].positionVBO = vbuf;
		if(m->isSelectedMap())
			m_dockTab->updateMapParameters();
	}
}

void Surface_Radiance_Plugin::changeNormalVBO(const QString& map, const QString& vbo)
{
	MapHandlerGen* m = m_schnapps->getMap(map);
	if(m)
	{
		Utils::VBO* vbuf = m->getVBO(vbo);
		h_mapParameterSet[m].normalVBO = vbuf;
		if(m->isSelectedMap())
			m_dockTab->updateMapParameters();
	}
}

MapHandlerGen* Surface_Radiance_Plugin::importFromFile(const QString& fileName)
{
	QFileInfo fi(fileName);
	if(fi.exists())
	{
		MapHandlerGen* mhg = m_schnapps->addMap(fi.baseName(), 2);
		if(mhg)
		{
			MapHandler<PFP2>* mh = static_cast<MapHandler<PFP2>*>(mhg);
			PFP2::MAP* map = mh->getMap();

			MeshTablesSurface_Radiance importer(*map);
			if (!importer.importPLY<SH_TYPE>(fileName.toStdString()))
			{
				std::cout << "could not import " << fileName.toStdString() << std::endl;
				return NULL;
			}
			CGoGN::Algo::Surface::Import::importMesh<PFP2>(*map, importer);

			// get vertex position attribute
			VertexAttribute<PFP2::VEC3, PFP2::MAP> position = map->getAttribute<PFP2::VEC3, VERTEX, PFP2::MAP>("position") ;
			VertexAttribute<PFP2::VEC3, PFP2::MAP> normal = map->getAttribute<PFP2::VEC3, VERTEX, PFP2::MAP>("normal");

			mh->registerAttribute(position);
			mh->registerAttribute(normal);

			// update corresponding VBO & emit attribute update signal
			mh->notifyAttributeModification(position);
			mh->notifyAttributeModification(normal);

			MapParameters& mapParams = h_mapParameterSet[mhg];

			mapParams.radiance = map->getAttribute<SH_TYPE, VERTEX, PFP2::MAP>("radiance") ;
			mapParams.radianceTexture = new Utils::Texture<2, Geom::Vec3f>(GL_FLOAT);
			mapParams.param = map->checkAttribute<Geom::Vec2i, VERTEX, PFP2::MAP>("param");

			// create texture
			unsigned int nbv_nbc = Algo::Topo::getNbOrbits<VERTEX>(*map) * SH_TYPE::get_nb_coefs();
			unsigned int size = 1;
			while (size * size < nbv_nbc)
				size <<= 1;

			mapParams.radianceTexture->create(Geom::Vec2i(size, size));

			// fill texture
			unsigned int count = 0;
			foreach_cell<VERTEX>(*map, [&] (Vertex v)
			{
				unsigned int i = count / size;
				unsigned int j = count % size;
				mapParams.param[v] = Geom::Vec2i(i, j) ; // first index for current vertex
				for (int l = 0 ; l <= SH_TYPE::get_resolution() ; ++l)
				{
					for (int m = -l ; m <= l ; ++m)
					{
						i = count / size;
						j = count % size;
						(*(mapParams.radianceTexture))(i,j) = mapParams.radiance[v].get_coef(l, m);
						++count;
					}
				}
			}) ;
			// resulting texture : SH00_vx0, SH1-1_vx0, ..., SHlm_vx0, SH00_vx1, SH1-1_vx1, ..., SHlm_vx1, etc.
			// resulting param : param[vxI] points to SH00_vxI
			// the size of the texture is needed to know where to do the divisions and modulos.

			mapParams.radianceTexture->update();

			mapParams.paramVBO = new Utils::VBO();
			mapParams.paramVBO->updateData(mapParams.param);

			mapParams.radiancePerVertexShader = new Utils::ShaderRadiancePerVertex();
			registerShader(mapParams.radiancePerVertexShader);

			mapParams.radiancePerVertexShader->compile(SH_TYPE::get_resolution());

			mapParams.radiancePerVertexShader->setAttributeRadiance(mapParams.paramVBO, mapParams.radianceTexture, GL_TEXTURE1);

			// compute map bounding box
			mh->updateBB(position);
		}
		return mhg;
	}
	else
		return NULL;
}

Q_EXPORT_PLUGIN2(Surface_Radiance_Plugin, Surface_Radiance_Plugin)

} // namespace SCHNApps

} // namespace CGoGN