add assimp submodule

1 files changed, 209 insertions, 0 deletions

diff --git a/src/mesh/assimp-master/code/AssetLib/XGL/XGLLoader.h b/src/mesh/assimp-master/code/AssetLib/XGL/XGLLoader.h
new file mode 100644
index 0000000..ae7ccdd
--- /dev/null
+++ b/src/mesh/assimp-master/code/AssetLib/XGL/XGLLoader.h
@@ -0,0 +1,209 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, 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.
+
+----------------------------------------------------------------------
+*/
+
+/** @file XGLLoader.h
+ *  @brief Declaration of the .xgl/.zgl
+ */
+#ifndef AI_XGLLOADER_H_INCLUDED
+#define AI_XGLLOADER_H_INCLUDED
+
+#include <assimp/BaseImporter.h>
+#include <assimp/XmlParser.h>
+#include <assimp/LogAux.h>
+#include <assimp/light.h>
+#include <assimp/material.h>
+#include <assimp/mesh.h>
+#include <assimp/light.h>
+#include <assimp/Importer.hpp>
+#include <assimp/XmlParser.h>
+
+#include <map>
+#include <memory>
+
+struct aiNode;
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** XGL/ZGL importer.
+ *
+ * Spec: http://vizstream.aveva.com/release/vsplatform/XGLSpec.htm
+ */
+class XGLImporter : public BaseImporter, public LogFunctions<XGLImporter> {
+public:
+    XGLImporter();
+    ~XGLImporter() override;
+
+    // -------------------------------------------------------------------
+    /** Returns whether the class can handle the format of the given file.
+     *  See BaseImporter::CanRead() for details.    */
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler,
+            bool checkSig) const override;
+
+protected:
+    // -------------------------------------------------------------------
+    /** Return importer meta information.
+     * See #BaseImporter::GetInfo for the details  */
+    const aiImporterDesc *GetInfo() const override;
+
+    // -------------------------------------------------------------------
+    /** Imports the given file into the given scene structure.
+     * See BaseImporter::InternReadFile() for details */
+    void InternReadFile(const std::string &pFile, aiScene *pScene,
+            IOSystem *pIOHandler) override;
+
+private:
+    struct TempScope {
+        TempScope() :
+                light() {
+            // empty
+        }
+
+        ~TempScope() {
+            for (aiMesh *m : meshes_linear) {
+                delete m;
+            }
+
+            for (aiMaterial *m : materials_linear) {
+                delete m;
+            }
+
+            delete light;
+        }
+
+        void dismiss() {
+            light = nullptr;
+            meshes_linear.clear();
+            materials_linear.clear();
+            meshes.clear();
+            materials.clear();
+        }
+
+        std::multimap<unsigned int, aiMesh *> meshes;
+        std::map<unsigned int, aiMaterial *> materials;
+
+        std::vector<aiMesh *> meshes_linear;
+        std::vector<aiMaterial *> materials_linear;
+
+        aiLight *light;
+    };
+
+    struct SortMeshByMaterialId {
+        SortMeshByMaterialId(const TempScope &scope) :
+                scope(scope) {
+            // empty
+        }
+        bool operator()(unsigned int a, unsigned int b) const {
+            return scope.meshes_linear[a]->mMaterialIndex < scope.meshes_linear[b]->mMaterialIndex;
+        };
+
+        const TempScope &scope;
+    };
+
+    struct TempMesh {
+        std::map<unsigned int, aiVector3D> points;
+        std::map<unsigned int, aiVector3D> normals;
+        std::map<unsigned int, aiVector2D> uvs;
+    };
+
+    struct TempMaterialMesh {
+        TempMaterialMesh() :
+                pflags(),
+                matid() {
+            // empty
+        }
+
+        std::vector<aiVector3D> positions, normals;
+        std::vector<aiVector2D> uvs;
+
+        std::vector<unsigned int> vcounts;
+        unsigned int pflags;
+        unsigned int matid;
+    };
+
+    struct TempFace {
+        TempFace() :
+                has_uv(),
+                has_normal() {
+            // empty
+        }
+
+        aiVector3D pos;
+        aiVector3D normal;
+        aiVector2D uv;
+        bool has_uv;
+        bool has_normal;
+    };
+
+private:
+    void Cleanup();
+
+    std::string GetElementName();
+    bool ReadElement();
+    bool ReadElementUpToClosing(const char *closetag);
+    bool SkipToText();
+    unsigned int ReadIDAttr(XmlNode &node);
+
+    void ReadWorld(XmlNode &node, TempScope &scope);
+    void ReadLighting(XmlNode &node, TempScope &scope);
+    aiLight *ReadDirectionalLight(XmlNode &node);
+    aiNode *ReadObject(XmlNode &node, TempScope &scope);
+    bool ReadMesh(XmlNode &node, TempScope &scope, bool &empty);
+    void ReadMaterial(XmlNode &node, TempScope &scope);
+    aiVector2D ReadVec2(XmlNode &node);
+    aiVector3D ReadVec3(XmlNode &node);
+    aiColor3D ReadCol3(XmlNode &node);
+    aiMatrix4x4 ReadTrafo(XmlNode &node);
+    unsigned int ReadIndexFromText(XmlNode &node);
+    float ReadFloat(XmlNode &node);
+
+    aiMesh *ToOutputMesh(const TempMaterialMesh &m);
+    void ReadFaceVertex(XmlNode &node, const TempMesh &t, TempFace &out);
+    unsigned int ResolveMaterialRef(XmlNode &node, TempScope &scope);
+
+private:
+    XmlParser *mXmlParser;
+    aiScene *m_scene;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_IRRMESHIMPORTER_H_INC