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Diffstat (limited to 'src/3rdparty/assimp/code/OgreXmlSerializer.cpp')
| -rw-r--r-- | src/3rdparty/assimp/code/OgreXmlSerializer.cpp | 1005 |
1 files changed, 0 insertions, 1005 deletions
diff --git a/src/3rdparty/assimp/code/OgreXmlSerializer.cpp b/src/3rdparty/assimp/code/OgreXmlSerializer.cpp deleted file mode 100644 index b5d20cdf6..000000000 --- a/src/3rdparty/assimp/code/OgreXmlSerializer.cpp +++ /dev/null @@ -1,1005 +0,0 @@ -/* -Open Asset Import Library (assimp) ----------------------------------------------------------------------- - -Copyright (c) 2006-2017, assimp team - -All rights reserved. - -Redistribution and use of this software in source and binary forms, -with or without modification, are permitted provided that the -following conditions are met: - -* Redistributions of source code must retain the above - copyright notice, this list of conditions and the - following disclaimer. - -* Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the - following disclaimer in the documentation and/or other - materials provided with the distribution. - -* Neither the name of the assimp team, nor the names of its - contributors may be used to endorse or promote products - derived from this software without specific prior - written permission of the assimp team. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - ----------------------------------------------------------------------- -*/ - -#include "OgreXmlSerializer.h" -#include "OgreBinarySerializer.h" -#include "OgreParsingUtils.h" - -#include "TinyFormatter.h" -#include <assimp/DefaultLogger.hpp> -#include <memory> - -#ifndef ASSIMP_BUILD_NO_OGRE_IMPORTER - -// Define as 1 to get verbose logging. -#define OGRE_XML_SERIALIZER_DEBUG 0 - -namespace Assimp -{ -namespace Ogre -{ - -AI_WONT_RETURN void ThrowAttibuteError(const XmlReader* reader, const std::string &name, const std::string &error = "") AI_WONT_RETURN_SUFFIX; -AI_WONT_RETURN void ThrowAttibuteError(const XmlReader* reader, const std::string &name, const std::string &error) -{ - if (!error.empty()) - { - throw DeadlyImportError(error + " in node '" + std::string(reader->getNodeName()) + "' and attribute '" + name + "'"); - } - else - { - throw DeadlyImportError("Attribute '" + name + "' does not exist in node '" + std::string(reader->getNodeName()) + "'"); - } -} - -template<> -int32_t OgreXmlSerializer::ReadAttribute<int32_t>(const std::string &name) const -{ - if (HasAttribute(name.c_str())) - { - return static_cast<int32_t>(m_reader->getAttributeValueAsInt(name.c_str())); - } - else - { - ThrowAttibuteError(m_reader, name); - return 0; - } -} - -template<> -uint32_t OgreXmlSerializer::ReadAttribute<uint32_t>(const std::string &name) const -{ - if (HasAttribute(name.c_str())) - { - /** @note This is hackish. But we are never expecting unsigned values that go outside the - int32_t range. Just monitor for negative numbers and kill the import. */ - int32_t temp = ReadAttribute<int32_t>(name); - if (temp >= 0) - { - return static_cast<uint32_t>(temp); - } - else - { - ThrowAttibuteError(m_reader, name, "Found a negative number value where expecting a uint32_t value"); - } - } - else - { - ThrowAttibuteError(m_reader, name); - } - return 0; -} - -template<> -uint16_t OgreXmlSerializer::ReadAttribute<uint16_t>(const std::string &name) const -{ - if (HasAttribute(name.c_str())) - { - return static_cast<uint16_t>(ReadAttribute<uint32_t>(name)); - } - else - { - ThrowAttibuteError(m_reader, name); - } - return 0; -} - -template<> -float OgreXmlSerializer::ReadAttribute<float>(const std::string &name) const -{ - if (HasAttribute(name.c_str())) - { - return m_reader->getAttributeValueAsFloat(name.c_str()); - } - else - { - ThrowAttibuteError(m_reader, name); - return 0; - } -} - -template<> -std::string OgreXmlSerializer::ReadAttribute<std::string>(const std::string &name) const -{ - const char* value = m_reader->getAttributeValue(name.c_str()); - if (value) - { - return std::string(value); - } - else - { - ThrowAttibuteError(m_reader, name); - return ""; - } -} - -template<> -bool OgreXmlSerializer::ReadAttribute<bool>(const std::string &name) const -{ - std::string value = Ogre::ToLower(ReadAttribute<std::string>(name)); - if (ASSIMP_stricmp(value, "true") == 0) - { - return true; - } - else if (ASSIMP_stricmp(value, "false") == 0) - { - return false; - } - else - { - ThrowAttibuteError(m_reader, name, "Boolean value is expected to be 'true' or 'false', encountered '" + value + "'"); - return false; - } -} - -bool OgreXmlSerializer::HasAttribute(const std::string &name) const -{ - return (m_reader->getAttributeValue(name.c_str()) != 0); -} - -std::string &OgreXmlSerializer::NextNode() -{ - do - { - if (!m_reader->read()) - { - m_currentNodeName = ""; - return m_currentNodeName; - } - } - while(m_reader->getNodeType() != irr::io::EXN_ELEMENT); - - CurrentNodeName(true); -#if (OGRE_XML_SERIALIZER_DEBUG == 1) - DefaultLogger::get()->debug("<" + m_currentNodeName + ">"); -#endif - return m_currentNodeName; -} - -bool OgreXmlSerializer::CurrentNodeNameEquals(const std::string &name) const -{ - return (ASSIMP_stricmp(m_currentNodeName, name) == 0); -} - -std::string OgreXmlSerializer::CurrentNodeName(bool forceRead) -{ - if (forceRead) - m_currentNodeName = std::string(m_reader->getNodeName()); - return m_currentNodeName; -} - -std::string &OgreXmlSerializer::SkipCurrentNode() -{ -#if (OGRE_XML_SERIALIZER_DEBUG == 1) - DefaultLogger::get()->debug("Skipping node <" + m_currentNodeName + ">"); -#endif - - for(;;) - { - if (!m_reader->read()) - { - m_currentNodeName = ""; - return m_currentNodeName; - } - if (m_reader->getNodeType() != irr::io::EXN_ELEMENT_END) - continue; - else if (std::string(m_reader->getNodeName()) == m_currentNodeName) - break; - } - return NextNode(); -} - -// Mesh XML constants - -// <mesh> -const std::string nnMesh = "mesh"; -const std::string nnSharedGeometry = "sharedgeometry"; -const std::string nnSubMeshes = "submeshes"; -const std::string nnSubMesh = "submesh"; -const std::string nnSubMeshNames = "submeshnames"; -const std::string nnSkeletonLink = "skeletonlink"; -const std::string nnLOD = "levelofdetail"; -const std::string nnExtremes = "extremes"; -const std::string nnPoses = "poses"; -const std::string nnAnimations = "animations"; - -// <submesh> -const std::string nnFaces = "faces"; -const std::string nnFace = "face"; -const std::string nnGeometry = "geometry"; -const std::string nnTextures = "textures"; - -// <mesh/submesh> -const std::string nnBoneAssignments = "boneassignments"; - -// <sharedgeometry/geometry> -const std::string nnVertexBuffer = "vertexbuffer"; - -// <vertexbuffer> -const std::string nnVertex = "vertex"; -const std::string nnPosition = "position"; -const std::string nnNormal = "normal"; -const std::string nnTangent = "tangent"; -const std::string nnBinormal = "binormal"; -const std::string nnTexCoord = "texcoord"; -const std::string nnColorDiffuse = "colour_diffuse"; -const std::string nnColorSpecular = "colour_specular"; - -// <boneassignments> -const std::string nnVertexBoneAssignment = "vertexboneassignment"; - -// Skeleton XML constants - -// <skeleton> -const std::string nnSkeleton = "skeleton"; -const std::string nnBones = "bones"; -const std::string nnBoneHierarchy = "bonehierarchy"; -const std::string nnAnimationLinks = "animationlinks"; - -// <bones> -const std::string nnBone = "bone"; -const std::string nnRotation = "rotation"; -const std::string nnAxis = "axis"; -const std::string nnScale = "scale"; - -// <bonehierarchy> -const std::string nnBoneParent = "boneparent"; - -// <animations> -const std::string nnAnimation = "animation"; -const std::string nnTracks = "tracks"; - -// <tracks> -const std::string nnTrack = "track"; -const std::string nnKeyFrames = "keyframes"; -const std::string nnKeyFrame = "keyframe"; -const std::string nnTranslate = "translate"; -const std::string nnRotate = "rotate"; - -// Common XML constants - -const std::string anX = "x"; -const std::string anY = "y"; -const std::string anZ = "z"; - -// Mesh - -MeshXml *OgreXmlSerializer::ImportMesh(XmlReader *reader) -{ - OgreXmlSerializer serializer(reader); - - MeshXml *mesh = new MeshXml(); - serializer.ReadMesh(mesh); - return mesh; -} - -void OgreXmlSerializer::ReadMesh(MeshXml *mesh) -{ - if (NextNode() != nnMesh) { - throw DeadlyImportError("Root node is <" + m_currentNodeName + "> expecting <mesh>"); - } - - DefaultLogger::get()->debug("Reading Mesh"); - - NextNode(); - - // Root level nodes - while(m_currentNodeName == nnSharedGeometry || - m_currentNodeName == nnSubMeshes || - m_currentNodeName == nnSkeletonLink || - m_currentNodeName == nnBoneAssignments || - m_currentNodeName == nnLOD || - m_currentNodeName == nnSubMeshNames || - m_currentNodeName == nnExtremes || - m_currentNodeName == nnPoses || - m_currentNodeName == nnAnimations) - { - if (m_currentNodeName == nnSharedGeometry) - { - mesh->sharedVertexData = new VertexDataXml(); - ReadGeometry(mesh->sharedVertexData); - } - else if (m_currentNodeName == nnSubMeshes) - { - NextNode(); - while(m_currentNodeName == nnSubMesh) { - ReadSubMesh(mesh); - } - } - else if (m_currentNodeName == nnBoneAssignments) - { - ReadBoneAssignments(mesh->sharedVertexData); - } - else if (m_currentNodeName == nnSkeletonLink) - { - mesh->skeletonRef = ReadAttribute<std::string>("name"); - DefaultLogger::get()->debug("Read skeleton link " + mesh->skeletonRef); - NextNode(); - } - // Assimp incompatible/ignored nodes - else - SkipCurrentNode(); - } -} - -void OgreXmlSerializer::ReadGeometry(VertexDataXml *dest) -{ - dest->count = ReadAttribute<uint32_t>("vertexcount"); - DefaultLogger::get()->debug(Formatter::format() << " - Reading geometry of " << dest->count << " vertices"); - - NextNode(); - while(m_currentNodeName == nnVertexBuffer) { - ReadGeometryVertexBuffer(dest); - } -} - -void OgreXmlSerializer::ReadGeometryVertexBuffer(VertexDataXml *dest) -{ - bool positions = (HasAttribute("positions") && ReadAttribute<bool>("positions")); - bool normals = (HasAttribute("normals") && ReadAttribute<bool>("normals")); - bool tangents = (HasAttribute("tangents") && ReadAttribute<bool>("tangents")); - uint32_t uvs = (HasAttribute("texture_coords") ? ReadAttribute<uint32_t>("texture_coords") : 0); - - // Not having positions is a error only if a previous vertex buffer did not have them. - if (!positions && !dest->HasPositions()) { - throw DeadlyImportError("Vertex buffer does not contain positions!"); - } - - if (positions) - { - DefaultLogger::get()->debug(" - Contains positions"); - dest->positions.reserve(dest->count); - } - if (normals) - { - DefaultLogger::get()->debug(" - Contains normals"); - dest->normals.reserve(dest->count); - } - if (tangents) - { - DefaultLogger::get()->debug(" - Contains tangents"); - dest->tangents.reserve(dest->count); - } - if (uvs > 0) - { - DefaultLogger::get()->debug(Formatter::format() << " - Contains " << uvs << " texture coords"); - dest->uvs.resize(uvs); - for(size_t i=0, len=dest->uvs.size(); i<len; ++i) { - dest->uvs[i].reserve(dest->count); - } - } - - bool warnBinormal = true; - bool warnColorDiffuse = true; - bool warnColorSpecular = true; - - NextNode(); - - while(m_currentNodeName == nnVertex || - m_currentNodeName == nnPosition || - m_currentNodeName == nnNormal || - m_currentNodeName == nnTangent || - m_currentNodeName == nnBinormal || - m_currentNodeName == nnTexCoord || - m_currentNodeName == nnColorDiffuse || - m_currentNodeName == nnColorSpecular) - { - if (m_currentNodeName == nnVertex) { - NextNode(); - } - - /// @todo Implement nnBinormal, nnColorDiffuse and nnColorSpecular - - if (positions && m_currentNodeName == nnPosition) - { - aiVector3D pos; - pos.x = ReadAttribute<float>(anX); - pos.y = ReadAttribute<float>(anY); - pos.z = ReadAttribute<float>(anZ); - dest->positions.push_back(pos); - } - else if (normals && m_currentNodeName == nnNormal) - { - aiVector3D normal; - normal.x = ReadAttribute<float>(anX); - normal.y = ReadAttribute<float>(anY); - normal.z = ReadAttribute<float>(anZ); - dest->normals.push_back(normal); - } - else if (tangents && m_currentNodeName == nnTangent) - { - aiVector3D tangent; - tangent.x = ReadAttribute<float>(anX); - tangent.y = ReadAttribute<float>(anY); - tangent.z = ReadAttribute<float>(anZ); - dest->tangents.push_back(tangent); - } - else if (uvs > 0 && m_currentNodeName == nnTexCoord) - { - for(auto &uvs : dest->uvs) - { - if (m_currentNodeName != nnTexCoord) { - throw DeadlyImportError("Vertex buffer declared more UVs than can be found in a vertex"); - } - - aiVector3D uv; - uv.x = ReadAttribute<float>("u"); - uv.y = (ReadAttribute<float>("v") * -1) + 1; // Flip UV from Ogre to Assimp form - uvs.push_back(uv); - - NextNode(); - } - // Continue main loop as above already read next node - continue; - } - else - { - /// @todo Remove this stuff once implemented. We only want to log warnings once per element. - bool warn = true; - if (m_currentNodeName == nnBinormal) - { - if (warnBinormal) - { - warnBinormal = false; - } - else - { - warn = false; - } - } - else if (m_currentNodeName == nnColorDiffuse) - { - if (warnColorDiffuse) - { - warnColorDiffuse = false; - } - else - { - warn = false; - } - } - else if (m_currentNodeName == nnColorSpecular) - { - if (warnColorSpecular) - { - warnColorSpecular = false; - } - else - { - warn = false; - } - } - if (warn) { - DefaultLogger::get()->warn("Vertex buffer attribute read not implemented for element: " + m_currentNodeName); - } - } - - // Advance - NextNode(); - } - - // Sanity checks - if (dest->positions.size() != dest->count) { - throw DeadlyImportError(Formatter::format() << "Read only " << dest->positions.size() << " positions when should have read " << dest->count); - } - if (normals && dest->normals.size() != dest->count) { - throw DeadlyImportError(Formatter::format() << "Read only " << dest->normals.size() << " normals when should have read " << dest->count); - } - if (tangents && dest->tangents.size() != dest->count) { - throw DeadlyImportError(Formatter::format() << "Read only " << dest->tangents.size() << " tangents when should have read " << dest->count); - } - for(unsigned int i=0; i<dest->uvs.size(); ++i) - { - if (dest->uvs[i].size() != dest->count) { - throw DeadlyImportError(Formatter::format() << "Read only " << dest->uvs[i].size() - << " uvs for uv index " << i << " when should have read " << dest->count); - } - } -} - -void OgreXmlSerializer::ReadSubMesh(MeshXml *mesh) -{ - static const std::string anMaterial = "material"; - static const std::string anUseSharedVertices = "usesharedvertices"; - static const std::string anCount = "count"; - static const std::string anV1 = "v1"; - static const std::string anV2 = "v2"; - static const std::string anV3 = "v3"; - static const std::string anV4 = "v4"; - - SubMeshXml* submesh = new SubMeshXml(); - - if (HasAttribute(anMaterial)) { - submesh->materialRef = ReadAttribute<std::string>(anMaterial); - } - if (HasAttribute(anUseSharedVertices)) { - submesh->usesSharedVertexData = ReadAttribute<bool>(anUseSharedVertices); - } - - DefaultLogger::get()->debug(Formatter::format() << "Reading SubMesh " << mesh->subMeshes.size()); - DefaultLogger::get()->debug(Formatter::format() << " - Material: '" << submesh->materialRef << "'"); - DefaultLogger::get()->debug(Formatter::format() << " - Uses shared geometry: " << (submesh->usesSharedVertexData ? "true" : "false")); - - // TODO: maybe we have always just 1 faces and 1 geometry and always in this order. this loop will only work correct, when the order - // of faces and geometry changed, and not if we have more than one of one - /// @todo Fix above comment with better read logic below - - bool quadWarned = false; - - NextNode(); - while(m_currentNodeName == nnFaces || - m_currentNodeName == nnGeometry || - m_currentNodeName == nnTextures || - m_currentNodeName == nnBoneAssignments) - { - if (m_currentNodeName == nnFaces) - { - submesh->indexData->faceCount = ReadAttribute<uint32_t>(anCount); - submesh->indexData->faces.reserve(submesh->indexData->faceCount); - - NextNode(); - while(m_currentNodeName == nnFace) - { - aiFace face; - face.mNumIndices = 3; - face.mIndices = new unsigned int[3]; - face.mIndices[0] = ReadAttribute<uint32_t>(anV1); - face.mIndices[1] = ReadAttribute<uint32_t>(anV2); - face.mIndices[2] = ReadAttribute<uint32_t>(anV3); - - /// @todo Support quads if Ogre even supports them in XML (I'm not sure but I doubt it) - if (!quadWarned && HasAttribute(anV4)) { - DefaultLogger::get()->warn("Submesh <face> has quads with <v4>, only triangles are supported at the moment!"); - quadWarned = true; - } - - submesh->indexData->faces.push_back(face); - - // Advance - NextNode(); - } - - if (submesh->indexData->faces.size() == submesh->indexData->faceCount) - { - DefaultLogger::get()->debug(Formatter::format() << " - Faces " << submesh->indexData->faceCount); - } - else - { - throw DeadlyImportError(Formatter::format() << "Read only " << submesh->indexData->faces.size() << " faces when should have read " << submesh->indexData->faceCount); - } - } - else if (m_currentNodeName == nnGeometry) - { - if (submesh->usesSharedVertexData) { - throw DeadlyImportError("Found <geometry> in <submesh> when use shared geometry is true. Invalid mesh file."); - } - - submesh->vertexData = new VertexDataXml(); - ReadGeometry(submesh->vertexData); - } - else if (m_currentNodeName == nnBoneAssignments) - { - ReadBoneAssignments(submesh->vertexData); - } - // Assimp incompatible/ignored nodes - else - SkipCurrentNode(); - } - - submesh->index = static_cast<unsigned int>(mesh->subMeshes.size()); - mesh->subMeshes.push_back(submesh); -} - -void OgreXmlSerializer::ReadBoneAssignments(VertexDataXml *dest) -{ - if (!dest) { - throw DeadlyImportError("Cannot read bone assignments, vertex data is null."); - } - - static const std::string anVertexIndex = "vertexindex"; - static const std::string anBoneIndex = "boneindex"; - static const std::string anWeight = "weight"; - - std::set<uint32_t> influencedVertices; - - NextNode(); - while(m_currentNodeName == nnVertexBoneAssignment) - { - VertexBoneAssignment ba; - ba.vertexIndex = ReadAttribute<uint32_t>(anVertexIndex); - ba.boneIndex = ReadAttribute<uint16_t>(anBoneIndex); - ba.weight = ReadAttribute<float>(anWeight); - - dest->boneAssignments.push_back(ba); - influencedVertices.insert(ba.vertexIndex); - - NextNode(); - } - - /** Normalize bone weights. - Some exporters won't care if the sum of all bone weights - for a single vertex equals 1 or not, so validate here. */ - const float epsilon = 0.05f; - for (const uint32_t vertexIndex : influencedVertices) - { - float sum = 0.0f; - for (VertexBoneAssignmentList::const_iterator baIter=dest->boneAssignments.begin(), baEnd=dest->boneAssignments.end(); baIter != baEnd; ++baIter) - { - if (baIter->vertexIndex == vertexIndex) - sum += baIter->weight; - } - if ((sum < (1.0f - epsilon)) || (sum > (1.0f + epsilon))) - { - for (auto &boneAssign : dest->boneAssignments) - { - if (boneAssign.vertexIndex == vertexIndex) - boneAssign.weight /= sum; - } - } - } - - DefaultLogger::get()->debug(Formatter::format() << " - " << dest->boneAssignments.size() << " bone assignments"); -} - -// Skeleton - -bool OgreXmlSerializer::ImportSkeleton(Assimp::IOSystem *pIOHandler, MeshXml *mesh) -{ - if (!mesh || mesh->skeletonRef.empty()) - return false; - - // Highly unusual to see in read world cases but support - // XML mesh referencing a binary skeleton file. - if (EndsWith(mesh->skeletonRef, ".skeleton", false)) - { - if (OgreBinarySerializer::ImportSkeleton(pIOHandler, mesh)) - return true; - - /** Last fallback if .skeleton failed to be read. Try reading from - .skeleton.xml even if the XML file referenced a binary skeleton. - @note This logic was in the previous version and I don't want to break - old code that might depends on it. */ - mesh->skeletonRef = mesh->skeletonRef + ".xml"; - } - - XmlReaderPtr reader = OpenReader(pIOHandler, mesh->skeletonRef); - if (!reader.get()) - return false; - - Skeleton *skeleton = new Skeleton(); - OgreXmlSerializer serializer(reader.get()); - serializer.ReadSkeleton(skeleton); - mesh->skeleton = skeleton; - return true; -} - -bool OgreXmlSerializer::ImportSkeleton(Assimp::IOSystem *pIOHandler, Mesh *mesh) -{ - if (!mesh || mesh->skeletonRef.empty()) - return false; - - XmlReaderPtr reader = OpenReader(pIOHandler, mesh->skeletonRef); - if (!reader.get()) - return false; - - Skeleton *skeleton = new Skeleton(); - OgreXmlSerializer serializer(reader.get()); - serializer.ReadSkeleton(skeleton); - mesh->skeleton = skeleton; - return true; -} - -XmlReaderPtr OgreXmlSerializer::OpenReader(Assimp::IOSystem *pIOHandler, const std::string &filename) -{ - if (!EndsWith(filename, ".skeleton.xml", false)) - { - DefaultLogger::get()->error("Imported Mesh is referencing to unsupported '" + filename + "' skeleton file."); - return XmlReaderPtr(); - } - - if (!pIOHandler->Exists(filename)) - { - DefaultLogger::get()->error("Failed to find skeleton file '" + filename + "' that is referenced by imported Mesh."); - return XmlReaderPtr(); - } - - std::unique_ptr<IOStream> file(pIOHandler->Open(filename)); - if (!file.get()) { - throw DeadlyImportError("Failed to open skeleton file " + filename); - } - - std::unique_ptr<CIrrXML_IOStreamReader> stream(new CIrrXML_IOStreamReader(file.get())); - XmlReaderPtr reader = XmlReaderPtr(irr::io::createIrrXMLReader(stream.get())); - if (!reader.get()) { - throw DeadlyImportError("Failed to create XML reader for skeleton file " + filename); - } - return reader; -} - -void OgreXmlSerializer::ReadSkeleton(Skeleton *skeleton) -{ - if (NextNode() != nnSkeleton) { - throw DeadlyImportError("Root node is <" + m_currentNodeName + "> expecting <skeleton>"); - } - - DefaultLogger::get()->debug("Reading Skeleton"); - - // Optional blend mode from root node - if (HasAttribute("blendmode")) { - skeleton->blendMode = (ToLower(ReadAttribute<std::string>("blendmode")) == "cumulative" - ? Skeleton::ANIMBLEND_CUMULATIVE : Skeleton::ANIMBLEND_AVERAGE); - } - - NextNode(); - - // Root level nodes - while(m_currentNodeName == nnBones || - m_currentNodeName == nnBoneHierarchy || - m_currentNodeName == nnAnimations || - m_currentNodeName == nnAnimationLinks) - { - if (m_currentNodeName == nnBones) - ReadBones(skeleton); - else if (m_currentNodeName == nnBoneHierarchy) - ReadBoneHierarchy(skeleton); - else if (m_currentNodeName == nnAnimations) - ReadAnimations(skeleton); - else - SkipCurrentNode(); - } -} - -void OgreXmlSerializer::ReadAnimations(Skeleton *skeleton) -{ - if (skeleton->bones.empty()) { - throw DeadlyImportError("Cannot read <animations> for a Skeleton without bones"); - } - - DefaultLogger::get()->debug(" - Animations"); - - NextNode(); - while(m_currentNodeName == nnAnimation) - { - Animation *anim = new Animation(skeleton); - anim->name = ReadAttribute<std::string>("name"); - anim->length = ReadAttribute<float>("length"); - - if (NextNode() != nnTracks) { - throw DeadlyImportError(Formatter::format() << "No <tracks> found in <animation> " << anim->name); - } - - ReadAnimationTracks(anim); - skeleton->animations.push_back(anim); - - DefaultLogger::get()->debug(Formatter::format() << " " << anim->name << " (" << anim->length << " sec, " << anim->tracks.size() << " tracks)"); - } -} - -void OgreXmlSerializer::ReadAnimationTracks(Animation *dest) -{ - NextNode(); - while(m_currentNodeName == nnTrack) - { - VertexAnimationTrack track; - track.type = VertexAnimationTrack::VAT_TRANSFORM; - track.boneName = ReadAttribute<std::string>("bone"); - - if (NextNode() != nnKeyFrames) { - throw DeadlyImportError(Formatter::format() << "No <keyframes> found in <track> " << dest->name); - } - - ReadAnimationKeyFrames(dest, &track); - - dest->tracks.push_back(track); - } -} - -void OgreXmlSerializer::ReadAnimationKeyFrames(Animation *anim, VertexAnimationTrack *dest) -{ - const aiVector3D zeroVec(0.f, 0.f, 0.f); - - NextNode(); - while(m_currentNodeName == nnKeyFrame) - { - TransformKeyFrame keyframe; - keyframe.timePos = ReadAttribute<float>("time"); - - NextNode(); - while(m_currentNodeName == nnTranslate || m_currentNodeName == nnRotate || m_currentNodeName == nnScale) - { - if (m_currentNodeName == nnTranslate) - { - keyframe.position.x = ReadAttribute<float>(anX); - keyframe.position.y = ReadAttribute<float>(anY); - keyframe.position.z = ReadAttribute<float>(anZ); - } - else if (m_currentNodeName == nnRotate) - { - float angle = ReadAttribute<float>("angle"); - - if (NextNode() != nnAxis) { - throw DeadlyImportError("No axis specified for keyframe rotation in animation " + anim->name); - } - - aiVector3D axis; - axis.x = ReadAttribute<float>(anX); - axis.y = ReadAttribute<float>(anY); - axis.z = ReadAttribute<float>(anZ); - if (axis.Equal(zeroVec)) - { - axis.x = 1.0f; - if (angle != 0) { - DefaultLogger::get()->warn("Found invalid a key frame with a zero rotation axis in animation: " + anim->name); - } - } - keyframe.rotation = aiQuaternion(axis, angle); - } - else if (m_currentNodeName == nnScale) - { - keyframe.scale.x = ReadAttribute<float>(anX); - keyframe.scale.y = ReadAttribute<float>(anY); - keyframe.scale.z = ReadAttribute<float>(anZ); - } - - NextNode(); - } - - dest->transformKeyFrames.push_back(keyframe); - } -} - -void OgreXmlSerializer::ReadBoneHierarchy(Skeleton *skeleton) -{ - if (skeleton->bones.empty()) { - throw DeadlyImportError("Cannot read <bonehierarchy> for a Skeleton without bones"); - } - - while(NextNode() == nnBoneParent) - { - const std::string name = ReadAttribute<std::string>("bone"); - const std::string parentName = ReadAttribute<std::string>("parent"); - - Bone *bone = skeleton->BoneByName(name); - Bone *parent = skeleton->BoneByName(parentName); - - if (bone && parent) - parent->AddChild(bone); - else - throw DeadlyImportError("Failed to find bones for parenting: Child " + name + " for parent " + parentName); - } - - // Calculate bone matrices for root bones. Recursively calculates their children. - for (size_t i=0, len=skeleton->bones.size(); i<len; ++i) - { - Bone *bone = skeleton->bones[i]; - if (!bone->IsParented()) - bone->CalculateWorldMatrixAndDefaultPose(skeleton); - } -} - -bool BoneCompare(Bone *a, Bone *b) -{ - return (a->id < b->id); -} - -void OgreXmlSerializer::ReadBones(Skeleton *skeleton) -{ - DefaultLogger::get()->debug(" - Bones"); - - NextNode(); - while(m_currentNodeName == nnBone) - { - Bone *bone = new Bone(); - bone->id = ReadAttribute<uint16_t>("id"); - bone->name = ReadAttribute<std::string>("name"); - - NextNode(); - while(m_currentNodeName == nnPosition || - m_currentNodeName == nnRotation || - m_currentNodeName == nnScale) - { - if (m_currentNodeName == nnPosition) - { - bone->position.x = ReadAttribute<float>(anX); - bone->position.y = ReadAttribute<float>(anY); - bone->position.z = ReadAttribute<float>(anZ); - } - else if (m_currentNodeName == nnRotation) - { - float angle = ReadAttribute<float>("angle"); - - if (NextNode() != nnAxis) { - throw DeadlyImportError(Formatter::format() << "No axis specified for bone rotation in bone " << bone->id); - } - - aiVector3D axis; - axis.x = ReadAttribute<float>(anX); - axis.y = ReadAttribute<float>(anY); - axis.z = ReadAttribute<float>(anZ); - - bone->rotation = aiQuaternion(axis, angle); - } - else if (m_currentNodeName == nnScale) - { - /// @todo Implement taking scale into account in matrix/pose calculations! - if (HasAttribute("factor")) - { - float factor = ReadAttribute<float>("factor"); - bone->scale.Set(factor, factor, factor); - } - else - { - if (HasAttribute(anX)) - bone->scale.x = ReadAttribute<float>(anX); - if (HasAttribute(anY)) - bone->scale.y = ReadAttribute<float>(anY); - if (HasAttribute(anZ)) - bone->scale.z = ReadAttribute<float>(anZ); - } - } - - NextNode(); - } - - skeleton->bones.push_back(bone); - } - - // Order bones by Id - std::sort(skeleton->bones.begin(), skeleton->bones.end(), BoneCompare); - - // Validate that bone indexes are not skipped. - /** @note Left this from original authors code, but not sure if this is strictly necessary - as per the Ogre skeleton spec. It might be more that other (later) code in this imported does not break. */ - for (size_t i=0, len=skeleton->bones.size(); i<len; ++i) - { - Bone *b = skeleton->bones[i]; - DefaultLogger::get()->debug(Formatter::format() << " " << b->id << " " << b->name); - - if (b->id != static_cast<uint16_t>(i)) { - throw DeadlyImportError(Formatter::format() << "Bone ids are not in sequence starting from 0. Missing index " << i); - } - } -} - -} // Ogre -} // Assimp - -#endif // ASSIMP_BUILD_NO_OGRE_IMPORTER |