/* ----------------------------------------------------------------------------- This source file is part of OGRE (Object-oriented Graphics Rendering Engine) For the latest info, see http://www.ogre3d.org/ Copyright (c) 2000-2005 The OGRE Team Also see acknowledgements in Readme.html This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program 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 GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA, or go to http://www.gnu.org/copyleft/lesser.txt. ----------------------------------------------------------------------------- */ #include "OgreXMLMeshSerializer.h" #include "OgreSubMesh.h" #include "OgreLogManager.h" #include "OgreSkeleton.h" #include "OgreStringConverter.h" #include "OgreHardwareBufferManager.h" #include "OgreException.h" namespace Ogre { //--------------------------------------------------------------------- XMLMeshSerializer::XMLMeshSerializer() { } //--------------------------------------------------------------------- XMLMeshSerializer::~XMLMeshSerializer() { } //--------------------------------------------------------------------- void XMLMeshSerializer::importMesh(const String& filename, Mesh* pMesh) { LogManager::getSingleton().logMessage("XMLMeshSerializer reading mesh data from " + filename + "..."); mpMesh = pMesh; mXMLDoc = new TiXmlDocument(filename); mXMLDoc->LoadFile(); TiXmlElement* elem; TiXmlElement* rootElem = mXMLDoc->RootElement(); // shared geometry elem = rootElem->FirstChildElement("sharedgeometry"); if (elem) { if(StringConverter::parseInt(elem->Attribute("vertexcount")) > 0) { mpMesh->sharedVertexData = new VertexData(); readGeometry(elem, mpMesh->sharedVertexData); } } // submeshes elem = rootElem->FirstChildElement("submeshes"); if (elem) readSubMeshes(elem); // skeleton link elem = rootElem->FirstChildElement("skeletonlink"); if (elem) readSkeletonLink(elem); // bone assignments elem = rootElem->FirstChildElement("boneassignments"); if (elem) readBoneAssignments(elem); //Lod elem = rootElem->FirstChildElement("levelofdetail"); if (elem) readLodInfo(elem); // submesh names elem = rootElem->FirstChildElement("submeshnames"); if (elem) readSubMeshNames(elem, mpMesh); delete mXMLDoc; LogManager::getSingleton().logMessage("XMLMeshSerializer import successful."); } //--------------------------------------------------------------------- void XMLMeshSerializer::exportMesh(const Mesh* pMesh, const String& filename) { LogManager::getSingleton().logMessage("XMLMeshSerializer writing mesh data to " + filename + "..."); mpMesh = const_cast(pMesh); mXMLDoc = new TiXmlDocument(); mXMLDoc->InsertEndChild(TiXmlElement("mesh")); TiXmlElement* rootNode = mXMLDoc->RootElement(); LogManager::getSingleton().logMessage("Populating DOM..."); // Write to DOM writeMesh(pMesh); LogManager::getSingleton().logMessage("DOM populated, writing XML file.."); // Write out to a file mXMLDoc->SaveFile(filename); delete mXMLDoc; LogManager::getSingleton().logMessage("XMLMeshSerializer export successful."); } //--------------------------------------------------------------------- void XMLMeshSerializer::writeMesh(const Mesh* pMesh) { TiXmlElement* rootNode = mXMLDoc->RootElement(); // Write geometry if (pMesh->sharedVertexData) { TiXmlElement* geomNode = rootNode->InsertEndChild(TiXmlElement("sharedgeometry"))->ToElement(); writeGeometry(geomNode, pMesh->sharedVertexData); } // Write Submeshes TiXmlElement* subMeshesNode = rootNode->InsertEndChild(TiXmlElement("submeshes"))->ToElement(); for (int i = 0; i < pMesh->getNumSubMeshes(); ++i) { LogManager::getSingleton().logMessage("Writing submesh..."); writeSubMesh(subMeshesNode, pMesh->getSubMesh(i)); LogManager::getSingleton().logMessage("Submesh exported."); } // Write skeleton info if required if (pMesh->hasSkeleton()) { LogManager::getSingleton().logMessage("Exporting skeleton link..."); // Write skeleton link writeSkeletonLink(rootNode, pMesh->getSkeletonName()); LogManager::getSingleton().logMessage("Skeleton link exported."); // Write bone assignments Mesh::BoneAssignmentIterator bi = const_cast(pMesh)->getBoneAssignmentIterator(); if (bi.hasMoreElements()) { LogManager::getSingleton().logMessage("Exporting shared geometry bone assignments..."); TiXmlElement* boneAssignNode = rootNode->InsertEndChild(TiXmlElement("boneassignments"))->ToElement(); while (bi.hasMoreElements()) { writeBoneAssignment(boneAssignNode, &(bi.getNext())); } LogManager::getSingleton().logMessage("Shared geometry bone assignments exported."); } } if (pMesh->getNumLodLevels() > 1) { LogManager::getSingleton().logMessage("Exporting LOD information..."); writeLodInfo(rootNode, pMesh); LogManager::getSingleton().logMessage("LOD information exported."); } // Write submesh names writeSubMeshNames(rootNode, pMesh); } //--------------------------------------------------------------------- void XMLMeshSerializer::writeSubMesh(TiXmlElement* mSubMeshesNode, const SubMesh* s) { TiXmlElement* subMeshNode = mSubMeshesNode->InsertEndChild(TiXmlElement("submesh"))->ToElement(); size_t numFaces; // Material name subMeshNode->SetAttribute("material", s->getMaterialName()); // bool useSharedVertices subMeshNode->SetAttribute("usesharedvertices", StringConverter::toString(s->useSharedVertices) ); // bool use32BitIndexes bool use32BitIndexes = (s->indexData->indexBuffer->getType() == HardwareIndexBuffer::IT_32BIT); subMeshNode->SetAttribute("use32bitindexes", StringConverter::toString( use32BitIndexes )); // Operation type switch(s->operationType) { case RenderOperation::OT_LINE_LIST: case RenderOperation::OT_LINE_STRIP: case RenderOperation::OT_POINT_LIST: OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR, "Unsupported operation type, only " "triangle types are allowed.", "XMLMeshSerializer::writeSubMesh"); break; case RenderOperation::OT_TRIANGLE_FAN: subMeshNode->SetAttribute("operationtype", "triangle_fan"); break; case RenderOperation::OT_TRIANGLE_LIST: subMeshNode->SetAttribute("operationtype", "triangle_list"); break; case RenderOperation::OT_TRIANGLE_STRIP: subMeshNode->SetAttribute("operationtype", "triangle_strip"); break; } // Faces TiXmlElement* facesNode = subMeshNode->InsertEndChild(TiXmlElement("faces"))->ToElement(); if (s->operationType == RenderOperation::OT_TRIANGLE_LIST) { // tri list numFaces = s->indexData->indexCount / 3; } else { // triangle fan or triangle strip numFaces = s->indexData->indexCount - 2; } facesNode->SetAttribute("count", StringConverter::toString(numFaces)); // Write each face in turn ushort i; unsigned int* pInt; unsigned short* pShort; HardwareIndexBufferSharedPtr ibuf = s->indexData->indexBuffer; if (use32BitIndexes) { pInt = static_cast( ibuf->lock(HardwareBuffer::HBL_READ_ONLY)); } else { pShort = static_cast( ibuf->lock(HardwareBuffer::HBL_READ_ONLY)); } for (i = 0; i < numFaces; ++i) { TiXmlElement* faceNode = facesNode->InsertEndChild(TiXmlElement("face"))->ToElement(); if (use32BitIndexes) { faceNode->SetAttribute("v1", StringConverter::toString(*pInt++)); /// Only need all 3 vertex indices if trilist or first face if (s->operationType == RenderOperation::OT_TRIANGLE_LIST || i == 0) { faceNode->SetAttribute("v2", StringConverter::toString(*pInt++)); faceNode->SetAttribute("v3", StringConverter::toString(*pInt++)); } } else { faceNode->SetAttribute("v1", StringConverter::toString(*pShort++)); /// Only need all 3 vertex indices if trilist or first face if (s->operationType == RenderOperation::OT_TRIANGLE_LIST || i == 0) { faceNode->SetAttribute("v2", StringConverter::toString(*pShort++)); faceNode->SetAttribute("v3", StringConverter::toString(*pShort++)); } } } // M_GEOMETRY chunk (Optional: present only if useSharedVertices = false) if (!s->useSharedVertices) { TiXmlElement* geomNode = subMeshNode->InsertEndChild(TiXmlElement("geometry"))->ToElement(); writeGeometry(geomNode, s->vertexData); } // Bone assignments if (mpMesh->hasSkeleton()) { SubMesh::BoneAssignmentIterator bi = const_cast(s)->getBoneAssignmentIterator(); LogManager::getSingleton().logMessage("Exporting dedicated geometry bone assignments..."); TiXmlElement* boneAssignNode = subMeshNode->InsertEndChild(TiXmlElement("boneassignments"))->ToElement(); while (bi.hasMoreElements()) { writeBoneAssignment(boneAssignNode, &bi.getNext()); } } LogManager::getSingleton().logMessage("Dedicated geometry bone assignments exported."); } //--------------------------------------------------------------------- void XMLMeshSerializer::writeGeometry(TiXmlElement* mParentNode, const VertexData* vertexData) { // Write a vertex buffer per element TiXmlElement *vbNode, *vertexNode, *dataNode; // Set num verts on parent mParentNode->SetAttribute("vertexcount", StringConverter::toString(vertexData->vertexCount)); VertexDeclaration* decl = vertexData->vertexDeclaration; VertexBufferBinding* bind = vertexData->vertexBufferBinding; VertexBufferBinding::VertexBufferBindingMap::const_iterator b, bend; bend = bind->getBindings().end(); // Iterate over buffers for(b = bind->getBindings().begin(); b != bend; ++b) { vbNode = mParentNode->InsertEndChild(TiXmlElement("vertexbuffer"))->ToElement(); const HardwareVertexBufferSharedPtr vbuf = b->second; unsigned short bufferIdx = b->first; // Get all the elements that relate to this buffer VertexDeclaration::VertexElementList elems = decl->findElementsBySource(bufferIdx); VertexDeclaration::VertexElementList::iterator i, iend; iend = elems.end(); // Set up the data access for this buffer (lock read-only) unsigned char* pVert; float* pFloat; ARGB* pColour; pVert = static_cast( vbuf->lock(HardwareBuffer::HBL_READ_ONLY)); // Skim over the elements to set up the general data unsigned short numTextureCoords = 0; for (i = elems.begin(); i != iend; ++i) { VertexElement& elem = *i; switch(elem.getSemantic()) { case VES_POSITION: vbNode->SetAttribute("positions","true"); break; case VES_NORMAL: vbNode->SetAttribute("normals","true"); break; case VES_DIFFUSE: vbNode->SetAttribute("colours_diffuse","true"); break; case VES_SPECULAR: vbNode->SetAttribute("colours_specular","true"); break; case VES_TEXTURE_COORDINATES: vbNode->SetAttribute( "texture_coord_dimensions_" + StringConverter::toString(numTextureCoords), StringConverter::toString(VertexElement::getTypeCount(elem.getType()))); ++numTextureCoords; break; default: break; } } if (numTextureCoords > 0) { vbNode->SetAttribute("texture_coords", StringConverter::toString(numTextureCoords)); } // For each vertex for (size_t v = 0; v < vertexData->vertexCount; ++v) { vertexNode = vbNode->InsertEndChild(TiXmlElement("vertex"))->ToElement(); // Iterate over the elements for (i = elems.begin(); i != iend; ++i) { VertexElement& elem = *i; switch(elem.getSemantic()) { case VES_POSITION: elem.baseVertexPointerToElement(pVert, &pFloat); dataNode = vertexNode->InsertEndChild(TiXmlElement("position"))->ToElement(); dataNode->SetAttribute("x", StringConverter::toString(pFloat[0])); dataNode->SetAttribute("y", StringConverter::toString(pFloat[1])); dataNode->SetAttribute("z", StringConverter::toString(pFloat[2])); break; case VES_NORMAL: elem.baseVertexPointerToElement(pVert, &pFloat); dataNode = vertexNode->InsertEndChild(TiXmlElement("normal"))->ToElement(); dataNode->SetAttribute("x", StringConverter::toString(pFloat[0])); dataNode->SetAttribute("y", StringConverter::toString(pFloat[1])); dataNode->SetAttribute("z", StringConverter::toString(pFloat[2])); break; case VES_DIFFUSE: elem.baseVertexPointerToElement(pVert, &pColour); dataNode = vertexNode->InsertEndChild(TiXmlElement("colour_diffuse"))->ToElement(); { ARGB rc = *pColour++; ColourValue cv; cv.b = (rc & 0xFF) / 255.0f; rc >>= 8; cv.g = (rc & 0xFF) / 255.0f; rc >>= 8; cv.r = (rc & 0xFF) / 255.0f; rc >>= 8; cv.a = (rc & 0xFF) / 255.0f; dataNode->SetAttribute("value", StringConverter::toString(cv)); } break; case VES_SPECULAR: elem.baseVertexPointerToElement(pVert, &pColour); dataNode = vertexNode->InsertEndChild(TiXmlElement("colour_specular"))->ToElement(); { ARGB rc = *pColour++; ColourValue cv; cv.b = (rc & 0xFF) / 255.0f; rc >>= 8; cv.g = (rc & 0xFF) / 255.0f; rc >>= 8; cv.r = (rc & 0xFF) / 255.0f; rc >>= 8; cv.a = (rc & 0xFF) / 255.0f; dataNode->SetAttribute("value", StringConverter::toString(cv)); } break; case VES_TEXTURE_COORDINATES: elem.baseVertexPointerToElement(pVert, &pFloat); dataNode = vertexNode->InsertEndChild(TiXmlElement("texcoord"))->ToElement(); switch(elem.getType()) { case VET_FLOAT1: dataNode->SetAttribute("u", StringConverter::toString(*pFloat++)); break; case VET_FLOAT2: dataNode->SetAttribute("u", StringConverter::toString(*pFloat++)); dataNode->SetAttribute("v", StringConverter::toString(*pFloat++)); break; case VET_FLOAT3: dataNode->SetAttribute("u", StringConverter::toString(*pFloat++)); dataNode->SetAttribute("v", StringConverter::toString(*pFloat++)); dataNode->SetAttribute("w", StringConverter::toString(*pFloat++)); break; default: break; } break; default: break; } } pVert += vbuf->getVertexSize(); } vbuf->unlock(); } } //--------------------------------------------------------------------- void XMLMeshSerializer::writeSkeletonLink(TiXmlElement* mMeshNode, const String& skelName) { TiXmlElement* skelNode = mMeshNode->InsertEndChild(TiXmlElement("skeletonlink"))->ToElement(); skelNode->SetAttribute("name", skelName); } //--------------------------------------------------------------------- void XMLMeshSerializer::writeBoneAssignment(TiXmlElement* mBoneAssignNode, const VertexBoneAssignment* assign) { TiXmlElement* assignNode = mBoneAssignNode->InsertEndChild( TiXmlElement("vertexboneassignment"))->ToElement(); assignNode->SetAttribute("vertexindex", StringConverter::toString(assign->vertexIndex)); assignNode->SetAttribute("boneindex", StringConverter::toString(assign->boneIndex)); assignNode->SetAttribute("weight", StringConverter::toString(assign->weight)); } //--------------------------------------------------------------------- void XMLMeshSerializer::readSubMeshes(TiXmlElement* mSubmeshesNode) { LogManager::getSingleton().logMessage("Reading submeshes..."); for (TiXmlElement* smElem = mSubmeshesNode->FirstChildElement(); smElem != 0; smElem = smElem->NextSiblingElement()) { // All children should be submeshes SubMesh* sm = mpMesh->createSubMesh(); const char* mat = smElem->Attribute("material"); if (mat) sm->setMaterialName(mat); // Read operation type const char* optype = smElem->Attribute("operationtype"); if (optype) { if (!strcmp(optype, "triangle_list")) { sm->operationType = RenderOperation::OT_TRIANGLE_LIST; } else if (!strcmp(optype, "triangle_fan")) { sm->operationType = RenderOperation::OT_TRIANGLE_FAN; } else if (!strcmp(optype, "triangle_strip")) { sm->operationType = RenderOperation::OT_TRIANGLE_STRIP; } } const char* tmp = smElem->Attribute("usesharedvertices"); if (tmp) sm->useSharedVertices = StringConverter::parseBool(tmp); tmp = smElem->Attribute("use32bitindexes"); bool use32BitIndexes = false; if (tmp) use32BitIndexes = StringConverter::parseBool(tmp); // Faces TiXmlElement* faces = smElem->FirstChildElement("faces"); if (sm->operationType == RenderOperation::OT_TRIANGLE_LIST) { // tri list sm->indexData->indexCount = StringConverter::parseInt(faces->Attribute("count")) * 3; } else { // tri strip or fan sm->indexData->indexCount = StringConverter::parseInt(faces->Attribute("count")) + 2; } // Allocate space HardwareIndexBufferSharedPtr ibuf = HardwareBufferManager::getSingleton(). createIndexBuffer( use32BitIndexes? HardwareIndexBuffer::IT_32BIT : HardwareIndexBuffer::IT_16BIT, sm->indexData->indexCount, HardwareBuffer::HBU_DYNAMIC, false); sm->indexData->indexBuffer = ibuf; unsigned int *pInt; unsigned short *pShort; if (use32BitIndexes) { pInt = static_cast( ibuf->lock(HardwareBuffer::HBL_DISCARD)); } else { pShort = static_cast( ibuf->lock(HardwareBuffer::HBL_DISCARD)); } TiXmlElement* faceElem; bool firstTri = true; for (faceElem = faces->FirstChildElement(); faceElem != 0; faceElem = faceElem->NextSiblingElement()) { if (use32BitIndexes) { *pInt++ = StringConverter::parseInt(faceElem->Attribute("v1")); // only need all 3 vertices if it's a trilist or first tri if (sm->operationType == RenderOperation::OT_TRIANGLE_LIST || firstTri) { *pInt++ = StringConverter::parseInt(faceElem->Attribute("v2")); *pInt++ = StringConverter::parseInt(faceElem->Attribute("v3")); } } else { *pShort++ = StringConverter::parseInt(faceElem->Attribute("v1")); // only need all 3 vertices if it's a trilist or first tri if (sm->operationType == RenderOperation::OT_TRIANGLE_LIST || firstTri) { *pShort++ = StringConverter::parseInt(faceElem->Attribute("v2")); *pShort++ = StringConverter::parseInt(faceElem->Attribute("v3")); } } firstTri = false; } ibuf->unlock(); // Geometry if (!sm->useSharedVertices) { TiXmlElement* geomNode = smElem->FirstChildElement("geometry"); if (geomNode) { sm->vertexData = new VertexData(); readGeometry(geomNode, sm->vertexData); } } // Bone assignments TiXmlElement* boneAssigns = smElem->FirstChildElement("boneassignments"); if(boneAssigns) readBoneAssignments(boneAssigns, sm); } LogManager::getSingleton().logMessage("Submeshes done."); } //--------------------------------------------------------------------- void XMLMeshSerializer::readGeometry(TiXmlElement* mGeometryNode, VertexData* vertexData) { LogManager::getSingleton().logMessage("Reading geometry..."); unsigned char *pVert; float *pFloat; ARGB *pCol; vertexData->vertexCount = StringConverter::parseInt(mGeometryNode->Attribute("vertexcount")); // Skip empty if (vertexData->vertexCount <= 0) return; VertexDeclaration* decl = vertexData->vertexDeclaration; VertexBufferBinding* bind = vertexData->vertexBufferBinding; unsigned short bufCount = 0; unsigned short totalTexCoords = 0; // across all buffers // Information for calculating bounds Vector3 min, max, pos; Real maxSquaredRadius = -1; bool first = true; // Iterate over all children (vertexbuffer entries) for (TiXmlElement* vbElem = mGeometryNode->FirstChildElement(); vbElem != 0; vbElem = vbElem->NextSiblingElement()) { size_t offset = 0; // Skip non-vertexbuffer elems if (stricmp(vbElem->Value(), "vertexbuffer")) continue; const char* attrib = vbElem->Attribute("positions"); if (attrib && StringConverter::parseBool(attrib)) { // Add element decl->addElement(bufCount, offset, VET_FLOAT3, VES_POSITION); offset += VertexElement::getTypeSize(VET_FLOAT3); } attrib = vbElem->Attribute("normals"); if (attrib && StringConverter::parseBool(attrib)) { // Add element decl->addElement(bufCount, offset, VET_FLOAT3, VES_NORMAL); offset += VertexElement::getTypeSize(VET_FLOAT3); } attrib = vbElem->Attribute("colours_diffuse"); if (attrib && StringConverter::parseBool(attrib)) { // Add element decl->addElement(bufCount, offset, VET_COLOUR, VES_DIFFUSE); offset += VertexElement::getTypeSize(VET_COLOUR); } attrib = vbElem->Attribute("colours_specular"); if (attrib && StringConverter::parseBool(attrib)) { // Add element decl->addElement(bufCount, offset, VET_COLOUR, VES_SPECULAR); offset += VertexElement::getTypeSize(VET_COLOUR); } attrib = vbElem->Attribute("texture_coords"); if (attrib && StringConverter::parseInt(attrib)) { unsigned short numTexCoords = StringConverter::parseInt(vbElem->Attribute("texture_coords")); for (unsigned short tx = 0; tx < numTexCoords; ++tx) { // NB set is local to this buffer, but will be translated into a // global set number across all vertex buffers attrib = vbElem->Attribute("texture_coord_dimensions_" + StringConverter::toString(tx)); unsigned short dims; if (attrib) { dims = StringConverter::parseInt(attrib); } else { // Default dims = 2; } // Add element VertexElementType vtype = VertexElement::multiplyTypeCount(VET_FLOAT1, dims); decl->addElement(bufCount, offset, vtype, VES_TEXTURE_COORDINATES, totalTexCoords++); offset += VertexElement::getTypeSize(vtype); } } // Now create the vertex buffer HardwareVertexBufferSharedPtr vbuf = HardwareBufferManager::getSingleton(). createVertexBuffer(offset, vertexData->vertexCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY, false); // Bind it bind->setBinding(bufCount, vbuf); // Lock it pVert = static_cast( vbuf->lock(HardwareBuffer::HBL_DISCARD)); // Get the element list for this buffer alone VertexDeclaration::VertexElementList elems = decl->findElementsBySource(bufCount); // Now the buffer is set up, parse all the vertices for (TiXmlElement* vertexElem = vbElem->FirstChildElement(); vertexElem != 0; vertexElem = vertexElem->NextSiblingElement()) { // Now parse the elements, ensure they are all matched VertexDeclaration::VertexElementList::const_iterator ielem, ielemend; TiXmlElement* xmlElem; TiXmlElement* texCoordElem = 0; ielemend = elems.end(); for (ielem = elems.begin(); ielem != ielemend; ++ielem) { const VertexElement& elem = *ielem; // Find child for this element switch(elem.getSemantic()) { case VES_POSITION: xmlElem = vertexElem->FirstChildElement("position"); if (!xmlElem) { OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "Missing element.", "XMLSerializer::readGeometry"); } elem.baseVertexPointerToElement(pVert, &pFloat); *pFloat++ = StringConverter::parseReal( xmlElem->Attribute("x")); *pFloat++ = StringConverter::parseReal( xmlElem->Attribute("y")); *pFloat++ = StringConverter::parseReal( xmlElem->Attribute("z")); pos.x = StringConverter::parseReal( xmlElem->Attribute("x")); pos.y = StringConverter::parseReal( xmlElem->Attribute("y")); pos.z = StringConverter::parseReal( xmlElem->Attribute("z")); if (first) { min = max = pos; maxSquaredRadius = pos.squaredLength(); first = false; } else { min.makeFloor(pos); max.makeCeil(pos); maxSquaredRadius = std::max(pos.squaredLength(), maxSquaredRadius); } break; case VES_NORMAL: xmlElem = vertexElem->FirstChildElement("normal"); if (!xmlElem) { OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "Missing element.", "XMLSerializer::readGeometry"); } elem.baseVertexPointerToElement(pVert, &pFloat); *pFloat++ = StringConverter::parseReal( xmlElem->Attribute("x")); *pFloat++ = StringConverter::parseReal( xmlElem->Attribute("y")); *pFloat++ = StringConverter::parseReal( xmlElem->Attribute("z")); break; case VES_DIFFUSE: xmlElem = vertexElem->FirstChildElement("colour_diffuse"); if (!xmlElem) { OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "Missing element.", "XMLSerializer::readGeometry"); } elem.baseVertexPointerToElement(pVert, &pCol); { ColourValue cv; cv = StringConverter::parseColourValue( xmlElem->Attribute("value")); *pCol++ = cv.getAsARGB(); } break; case VES_SPECULAR: xmlElem = vertexElem->FirstChildElement("colour_specular"); if (!xmlElem) { OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "Missing element.", "XMLSerializer::readGeometry"); } elem.baseVertexPointerToElement(pVert, &pCol); { ColourValue cv; cv = StringConverter::parseColourValue( xmlElem->Attribute("value")); *pCol++ = cv.getAsARGB(); } break; case VES_TEXTURE_COORDINATES: if (!texCoordElem) { // Get first texcoord xmlElem = vertexElem->FirstChildElement("texcoord"); } else { // Get next texcoord xmlElem = texCoordElem->NextSiblingElement("texcoord"); } if (!xmlElem) { OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "Missing element.", "XMLSerializer::readGeometry"); } // Record the latest texture coord entry texCoordElem = xmlElem; elem.baseVertexPointerToElement(pVert, &pFloat); *pFloat++ = StringConverter::parseReal( xmlElem->Attribute("u")); if (VertexElement::getTypeCount(elem.getType()) > 1) { *pFloat++ = StringConverter::parseReal( xmlElem->Attribute("v")); } if (VertexElement::getTypeCount(elem.getType()) > 2) { *pFloat++ = StringConverter::parseReal( xmlElem->Attribute("w")); } break; default: break; } } // semantic pVert += vbuf->getVertexSize(); } // vertex bufCount++; vbuf->unlock(); } // vertexbuffer // Set bounds const AxisAlignedBox& currBox = mpMesh->getBounds(); Real currRadius = mpMesh->getBoundingSphereRadius(); if (currBox.isNull()) { //do not pad the bounding box mpMesh->_setBounds(AxisAlignedBox(min, max), false); mpMesh->_setBoundingSphereRadius(Math::Sqrt(maxSquaredRadius)); } else { AxisAlignedBox newBox(min, max); newBox.merge(currBox); //do not pad the bounding box mpMesh->_setBounds(newBox, false); mpMesh->_setBoundingSphereRadius(std::max(Math::Sqrt(maxSquaredRadius), currRadius)); } LogManager::getSingleton().logMessage("Geometry done..."); } //--------------------------------------------------------------------- void XMLMeshSerializer::readSkeletonLink(TiXmlElement* mSkelNode) { mpMesh->setSkeletonName(mSkelNode->Attribute("name")); } //--------------------------------------------------------------------- void XMLMeshSerializer::readBoneAssignments(TiXmlElement* mBoneAssignmentsNode) { LogManager::getSingleton().logMessage("Reading bone assignments..."); // Iterate over all children (vertexboneassignment entries) for (TiXmlElement* elem = mBoneAssignmentsNode->FirstChildElement(); elem != 0; elem = elem->NextSiblingElement()) { VertexBoneAssignment vba; vba.vertexIndex = StringConverter::parseInt( elem->Attribute("vertexindex")); vba.boneIndex = StringConverter::parseInt( elem->Attribute("boneindex")); vba.weight= StringConverter::parseReal( elem->Attribute("weight")); mpMesh->addBoneAssignment(vba); } LogManager::getSingleton().logMessage("Bone assignments done."); } //--------------------------------------------------------------------- void XMLMeshSerializer::readSubMeshNames(TiXmlElement* mMeshNamesNode, Mesh *sm) { LogManager::getSingleton().logMessage("Reading mesh names..."); // Iterate over all children (vertexboneassignment entries) for (TiXmlElement* elem = mMeshNamesNode->FirstChildElement(); elem != 0; elem = elem->NextSiblingElement()) { String meshName = elem->Attribute("name"); int index = StringConverter::parseInt(elem->Attribute("index")); sm->nameSubMesh(meshName, index); } LogManager::getSingleton().logMessage("Mesh names done."); } //--------------------------------------------------------------------- void XMLMeshSerializer::readBoneAssignments(TiXmlElement* mBoneAssignmentsNode, SubMesh* sm) { LogManager::getSingleton().logMessage("Reading bone assignments..."); // Iterate over all children (vertexboneassignment entries) for (TiXmlElement* elem = mBoneAssignmentsNode->FirstChildElement(); elem != 0; elem = elem->NextSiblingElement()) { VertexBoneAssignment vba; vba.vertexIndex = StringConverter::parseInt( elem->Attribute("vertexindex")); vba.boneIndex = StringConverter::parseInt( elem->Attribute("boneindex")); vba.weight= StringConverter::parseReal( elem->Attribute("weight")); sm->addBoneAssignment(vba); } LogManager::getSingleton().logMessage("Bone assignments done."); } //--------------------------------------------------------------------- void XMLMeshSerializer::writeLodInfo(TiXmlElement* mMeshNode, const Mesh* pMesh) { TiXmlElement* lodNode = mMeshNode->InsertEndChild(TiXmlElement("levelofdetail"))->ToElement(); unsigned short numLvls = pMesh->getNumLodLevels(); bool manual = pMesh->isLodManual(); lodNode->SetAttribute("numlevels", StringConverter::toString(numLvls)); lodNode->SetAttribute("manual", StringConverter::toString(manual)); // Iterate from level 1, not 0 (full detail) for (unsigned short i = 1; i < numLvls; ++i) { const MeshLodUsage& usage = pMesh->getLodLevel(i); if (manual) { writeLodUsageManual(lodNode, i, usage); } else { writeLodUsageGenerated(lodNode, i, usage, pMesh); } } } //--------------------------------------------------------------------- void XMLMeshSerializer::writeSubMeshNames(TiXmlElement* mMeshNode, const Mesh* m) { const Mesh::SubMeshNameMap& nameMap = m->getSubMeshNameMap(); if (nameMap.empty()) return; // do nothing TiXmlElement* namesNode = mMeshNode->InsertEndChild(TiXmlElement("submeshnames"))->ToElement(); Mesh::SubMeshNameMap::const_iterator i, iend; iend = nameMap.end(); for (i = nameMap.begin(); i != iend; ++i) { TiXmlElement* subNameNode = namesNode->InsertEndChild(TiXmlElement("submeshname"))->ToElement(); subNameNode->SetAttribute("name", i->first); subNameNode->SetAttribute("index", StringConverter::toString(i->second)); } } //--------------------------------------------------------------------- void XMLMeshSerializer::writeLodUsageManual(TiXmlElement* usageNode, unsigned short levelNum, const MeshLodUsage& usage) { TiXmlElement* manualNode = usageNode->InsertEndChild(TiXmlElement("lodmanual"))->ToElement(); manualNode->SetAttribute("fromdepthsquared", StringConverter::toString(usage.fromDepthSquared)); manualNode->SetAttribute("meshname", usage.manualName); } //--------------------------------------------------------------------- void XMLMeshSerializer::writeLodUsageGenerated(TiXmlElement* usageNode, unsigned short levelNum, const MeshLodUsage& usage, const Mesh* pMesh) { TiXmlElement* generatedNode = usageNode->InsertEndChild(TiXmlElement("lodgenerated"))->ToElement(); generatedNode->SetAttribute("fromdepthsquared", StringConverter::toString(usage.fromDepthSquared)); // Iterate over submeshes at this level unsigned short numsubs = pMesh->getNumSubMeshes(); for (unsigned short subi = 0; subi < numsubs; ++subi) { TiXmlElement* subNode = generatedNode->InsertEndChild(TiXmlElement("lodfacelist"))->ToElement(); SubMesh* sub = pMesh->getSubMesh(subi); subNode->SetAttribute("submeshindex", StringConverter::toString(subi)); // NB level - 1 because SubMeshes don't store the first index in geometry IndexData* facedata = sub->mLodFaceList[levelNum - 1]; subNode->SetAttribute("numfaces", StringConverter::toString(facedata->indexCount / 3)); // Write each face in turn bool use32BitIndexes = (facedata->indexBuffer->getType() == HardwareIndexBuffer::IT_32BIT); // Write each face in turn unsigned int* pInt; unsigned short* pShort; HardwareIndexBufferSharedPtr ibuf = facedata->indexBuffer; if (use32BitIndexes) { pInt = static_cast( ibuf->lock(HardwareBuffer::HBL_READ_ONLY)); } else { pShort = static_cast( ibuf->lock(HardwareBuffer::HBL_READ_ONLY)); } for (size_t f = 0; f < facedata->indexCount; f += 3) { TiXmlElement* faceNode = subNode->InsertEndChild(TiXmlElement("face"))->ToElement(); if (use32BitIndexes) { faceNode->SetAttribute("v1", StringConverter::toString(*pInt++)); faceNode->SetAttribute("v2", StringConverter::toString(*pInt++)); faceNode->SetAttribute("v3", StringConverter::toString(*pInt++)); } else { faceNode->SetAttribute("v1", StringConverter::toString(*pShort++)); faceNode->SetAttribute("v2", StringConverter::toString(*pShort++)); faceNode->SetAttribute("v3", StringConverter::toString(*pShort++)); } } } } //--------------------------------------------------------------------- void XMLMeshSerializer::readLodInfo(TiXmlElement* lodNode) { LogManager::getSingleton().logMessage("Parsing LOD information..."); const char* val = lodNode->Attribute("numlevels"); unsigned short numLevels = static_cast( StringConverter::parseUnsignedInt(val)); val = lodNode->Attribute("manual"); bool manual = StringConverter::parseBool(val); // Set up the basic structures mpMesh->_setLodInfo(numLevels, manual); // Parse the detail, start from 1 (the first sub-level of detail) unsigned short i = 1; TiXmlElement* usageElem; if (manual) { usageElem = lodNode->FirstChildElement("lodmanual"); } else { usageElem = lodNode->FirstChildElement("lodgenerated"); } while (usageElem) { if (manual) { readLodUsageManual(usageElem, i); usageElem = usageElem->NextSiblingElement(); } else { readLodUsageGenerated(usageElem, i); usageElem = usageElem->NextSiblingElement(); } ++i; } LogManager::getSingleton().logMessage("LOD information done."); } //--------------------------------------------------------------------- void XMLMeshSerializer::readLodUsageManual(TiXmlElement* manualNode, unsigned short index) { MeshLodUsage usage; const char* val = manualNode->Attribute("fromdepthsquared"); usage.fromDepthSquared = StringConverter::parseReal(val); usage.manualName = manualNode->Attribute("meshname"); usage.edgeData = NULL; mpMesh->_setLodUsage(index, usage); } //--------------------------------------------------------------------- void XMLMeshSerializer::readLodUsageGenerated(TiXmlElement* genNode, unsigned short index) { MeshLodUsage usage; const char* val = genNode->Attribute("fromdepthsquared"); usage.fromDepthSquared = StringConverter::parseReal(val); usage.manualMesh.setNull(); usage.manualName = ""; usage.edgeData = NULL; mpMesh->_setLodUsage(index, usage); // Read submesh face lists TiXmlElement* faceListElem = genNode->FirstChildElement("lodfacelist"); while (faceListElem) { val = faceListElem->Attribute("submeshindex"); unsigned short subidx = StringConverter::parseUnsignedInt(val); val = faceListElem->Attribute("numfaces"); unsigned short numFaces = StringConverter::parseUnsignedInt(val); // use of 32bit indexes depends on submesh HardwareIndexBuffer::IndexType itype = mpMesh->getSubMesh(subidx)->indexData->indexBuffer->getType(); bool use32bitindexes = (itype == HardwareIndexBuffer::IT_32BIT); // Assign memory: this will be deleted by the submesh HardwareIndexBufferSharedPtr ibuf = HardwareBufferManager::getSingleton(). createIndexBuffer( itype, numFaces * 3, HardwareBuffer::HBU_STATIC_WRITE_ONLY); unsigned short *pShort; unsigned int *pInt; if (use32bitindexes) { pInt = static_cast( ibuf->lock(HardwareBuffer::HBL_DISCARD)); } else { pShort = static_cast( ibuf->lock(HardwareBuffer::HBL_DISCARD)); } TiXmlElement* faceElem = faceListElem->FirstChildElement("face"); for (unsigned int face = 0; face < numFaces; ++face, faceElem = faceElem->NextSiblingElement()) { if (use32bitindexes) { val = faceElem->Attribute("v1"); *pInt++ = StringConverter::parseUnsignedInt(val); val = faceElem->Attribute("v2"); *pInt++ = StringConverter::parseUnsignedInt(val); val = faceElem->Attribute("v3"); *pInt++ = StringConverter::parseUnsignedInt(val); } else { val = faceElem->Attribute("v1"); *pShort++ = StringConverter::parseUnsignedInt(val); val = faceElem->Attribute("v2"); *pShort++ = StringConverter::parseUnsignedInt(val); val = faceElem->Attribute("v3"); *pShort++ = StringConverter::parseUnsignedInt(val); } } ibuf->unlock(); IndexData* facedata = new IndexData(); // will be deleted by SubMesh facedata->indexCount = numFaces * 3; facedata->indexStart = 0; facedata->indexBuffer = ibuf; mpMesh->_setSubMeshLodFaceList(subidx, index, facedata); faceListElem = faceListElem->NextSiblingElement(); } } }