Exemplo n.º 1
0
void
OSBGeometryElement::preWrite(FieldContainer * const fc)
{
    OSG_OSB_LOG(("OSBGeometryElement::preWrite\n"));

    OSBRootElement *root       = editRoot();
    UInt32          fieldCount = fc->getType().getNumFieldDescs();

    UInt8 quanResPositions = root->getOptions().quantizePositions();
    UInt8 quanResNormals   = root->getOptions().quantizeNormals  ();
    UInt8 quanResTexCoords = root->getOptions().quantizeTexCoords();
    bool  packIndices      = root->getOptions().packIndices      ();

    // go through all fields and find those refering to other FCs
    for(UInt32 fieldId = 1; fieldId <= fieldCount; ++fieldId)
    {
        const FieldDescriptionBase *fieldDesc = fc->getFieldDescription(fieldId);
        const FieldType            &fieldType = fieldDesc->getFieldType();
        const std::string          &fieldName = fieldDesc->getName     ();

        // skip internal fields
        if(fieldDesc->isInternal())
        {
            OSG_OSB_LOG(("OSBGeometryElement::preWrite: "
                    "Skipping internal field: [%s]\n", fieldName.c_str()));
            continue;
        }

        if(fieldName == "properties")
        {
            // "properties" might be quantized
            FieldContainerPtrMFieldBase::GetHandlePtr fP =
                boost::dynamic_pointer_cast<
                    FieldContainerPtrMFieldBase::GetHandle>(
                        getContainer()->getField(fieldId));

            if(fP == NULL || fP->isValid() == false)
                continue;

            FieldContainerPtrMFieldBase::const_iterator fieldIt  = 
                (*fP)->begin();

            FieldContainerPtrMFieldBase::const_iterator fieldEnd = 
                (*fP)->end  ();

            for(UInt32 i = 0; fieldIt != fieldEnd; ++fieldIt, ++i)
            {
                FieldContainer *refedFC = *fieldIt;

                if(refedFC == NULL)
                    continue;

                      UInt32      refedId  = refedFC->getId  ();
                const std::string typeName = refedFC->getType().getName();

                // only schedule a container once
                if(root->getIdSet().count(refedId) > 0)
                    continue;

                OSBElementBase              *elem     =
                    OSBElementFactory::the()->acquire(typeName, root);
                OSBGeoVectorPropertyElement *propElem =
                    dynamic_cast<OSBGeoVectorPropertyElement *>(elem);

                if((propElem != 0) && (i == Geometry::PositionsIndex))
                {
                    propElem->setQuantizeResolution(quanResPositions);
                }
                else if((propElem != 0) && (i == Geometry::NormalsIndex))
                {
                    propElem->setQuantizeResolution(quanResNormals);
                }
                else if((propElem != 0) && (i >= Geometry::TexCoordsIndex) &&
                        (i <= Geometry::TexCoords7Index)                     )
                {
                    propElem->setQuantizeResolution(quanResTexCoords);
                }

                root->editIdSet      ().insert   (refedId);
                root->editElementList().push_back(elem   );
                elem->setContainer(refedFC);
                elem->preWrite    (refedFC);
            }
        }
        else if(fieldName == "propIndices")
        {
            // "propIndices" might be packed
            FieldContainerPtrMFieldBase::GetHandlePtr fP =
                boost::dynamic_pointer_cast<
                    FieldContainerPtrMFieldBase::GetHandle>(
                        getContainer()->getField(fieldId));

            if(fP == NULL || fP->isValid() == false)
                continue;

            FieldContainerPtrMFieldBase::const_iterator fieldIt  = 
                (*fP)->begin();
            FieldContainerPtrMFieldBase::const_iterator fieldEnd = 
                (*fP)->end  ();

            for(UInt32 i = 0; fieldIt != fieldEnd; ++fieldIt, ++i)
            {
                FieldContainer *refedFC = *fieldIt;

                if(refedFC == NULL)
                    continue;

                      UInt32      refedId  = refedFC->getId  ();
                const std::string typeName = refedFC->getType().getName();

                // only schedule a container once
                if(root->getIdSet().count(refedId) > 0)
                    continue;

                OSBElementBase                *elem     =
                    OSBElementFactory::the()->acquire(typeName, root);
                OSBGeoIntegralPropertyElement *propElem =
                    dynamic_cast<OSBGeoIntegralPropertyElement *>(elem);

                if((propElem != 0) && (packIndices == true))
                {
                    propElem->setPackData(true);
                }

                root->editIdSet      ().insert   (refedId);
                root->editElementList().push_back(elem   );
                elem->setContainer(refedFC);
                elem->preWrite    (refedFC);
            }
        }
        else if(fieldName == "attachments")
        {
            preWriteAttachmentMapField(fieldId);
        }
        else
        {
            // check if field refers to another FC, i.e. its a field holding
            // FieldContainerPtr or an FieldContainerAttachmentMap
            if(fieldType.getContentType().isDerivedFrom(
                FieldTraits<FieldContainer *>::getType()) == true)
            {
                if(fieldType.getCardinality() == FieldType::SingleField)
                {
                    preWritePtrSingleField(fieldId);
                }
                else if(fieldType.getCardinality() == FieldType::MultiField)
                {
                    preWritePtrMultiField(fieldId);
                }
            }
        }
    }
}
/*! Visits the given container \a fc during preWrite and creates elements
    for all containers reachable from this (except for those refered to by
    fields whose names are in \a excludeFields).

    The excludeFields string has the format: "'name1' 'name2' 'name3'",
    the spaces between the "'" are mandatory.

    \param[in] fc Container this element shall visit.
    \param[in] excludeFields Field names that are not to be considered when
    determining reachable containers.
 */
void
OSBCommonElement::preWriteFieldContainer(
    FieldContainer *fc, const std::string &excludeFields)
{
    OSG_OSB_LOG(("OSBCommonElement::preWriteFieldContainer: >> type [%s] "
                 "excludeFields: [%s]\n",
                 fc->getType().getName().c_str(),
                 excludeFields.c_str()));

    UInt32 fieldCount = fc->getType().getNumFieldDescs();

    // go through all fields and find those refering to other FCs
    for(UInt32 fieldId = 1; fieldId <= fieldCount; ++fieldId)
    {
        const FieldDescriptionBase *fieldDesc = fc->getFieldDescription(fieldId);
        const FieldType            &fieldType = fieldDesc->getFieldType();
        const std::string          &fieldName = fieldDesc->getName     ();

        OSG_OSB_LOG(("OSBCommonElement::preWriteFieldContainer: "
                     "fieldName: [%s] fieldId: [%u]\n",
                     fieldName.c_str(), fieldId));

        // skip internal fields
        if(fieldDesc->isInternal())
        {
            OSG_OSB_LOG(("OSBCommonElement::preWriteFieldContainer: "
                         "Skipping internal field: [%s]\n",
                         fieldName.c_str()));
            continue;
        }

        // skip excluded fields
        if((!excludeFields.empty()                                        ) &&
           (excludeFields.find("'" + fieldName + "'") != std::string::npos)   )
        {
            OSG_OSB_LOG(("OSBCommonElement::preWriteFieldContainer: "
                         "Skipping excluded field: [%s]\n", fieldName.c_str()));
            continue;
        }

        // check if field refers to another FC, i.e. its a field holding
        // FieldContainerPtr or an FieldContainerAttachmentMap
        if(fieldType.getContentType().isDerivedFrom(
               FieldTraits<AttachmentMap>::getType()) == true)
        {
            preWriteAttachmentMapField(fieldId);
        }
        else if(fieldType.getContentType().isDerivedFrom(
                    FieldTraits<FieldContainer *>::getMapType()) == true)
        {
            preWriteMapField(fieldId);
        }
        else if(fieldType.getContentType().isDerivedFrom(
                    FieldTraits<FieldContainer *>::getType()) == true)
        {
            if(fieldType.getCardinality() == FieldType::SingleField)
            {
                preWritePtrSingleField(fieldId);
            }
            else if(fieldType.getCardinality() == FieldType::MultiField)
            {
                preWritePtrMultiField(fieldId);
            }
        }
    }

    OSG_OSB_LOG(("OSBCommonElement::preWriteFieldContainer: << type [%s] "
                 "excludeFields: [%s]\n",
                 fc->getType().getName().c_str(),
                 excludeFields.c_str()));
}