WIP of assimp integration.

Engine/lib/assimp/code/XFileImporter.h

@@ -0,0 +1,149 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2018, 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  XFileImporter.h
+ *  @brief Definition of the XFile importer class.
+ */
+#ifndef AI_XFILEIMPORTER_H_INC
+#define AI_XFILEIMPORTER_H_INC
+
+#include <map>
+
+#include "XFileHelper.h"
+#include <assimp/BaseImporter.h>
+
+#include <assimp/types.h>
+
+struct aiNode;
+
+namespace Assimp    {
+
+namespace XFile {
+struct Scene;
+struct Node;
+}
+
+// ---------------------------------------------------------------------------
+/** The XFileImporter is a worker class capable of importing a scene from a
+ * DirectX file .x
+ */
+class XFileImporter : public BaseImporter {
+public:
+    XFileImporter();
+    ~XFileImporter();
+
+    // -------------------------------------------------------------------
+    /** 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;
+
+protected:
+
+    // -------------------------------------------------------------------
+    /** Return importer meta information.
+     * See #BaseImporter::GetInfo for the details
+     */
+    const aiImporterDesc* GetInfo () const;
+
+    // -------------------------------------------------------------------
+    /** Imports the given file into the given scene structure.
+     * See BaseImporter::InternReadFile() for details
+     */
+    void InternReadFile( const std::string& pFile, aiScene* pScene,
+        IOSystem* pIOHandler);
+
+    // -------------------------------------------------------------------
+    /** Constructs the return data structure out of the imported data.
+     * @param pScene The scene to construct the return data in.
+     * @param pData The imported data in the internal temporary
+     *   representation.
+     */
+    void CreateDataRepresentationFromImport( aiScene* pScene, XFile::Scene* pData);
+
+    // -------------------------------------------------------------------
+    /** Recursively creates scene nodes from the imported hierarchy.
+     * The meshes and materials of the nodes will be extracted on the way.
+     * @param pScene The scene to construct the return data in.
+     * @param pParent The parent node where to create new child nodes
+     * @param pNode The temporary node to copy.
+     * @return The created node
+     */
+    aiNode* CreateNodes( aiScene* pScene, aiNode* pParent,
+        const XFile::Node* pNode);
+
+    // -------------------------------------------------------------------
+    /** Converts all meshes in the given mesh array. Each mesh is split
+     * up per material, the indices of the generated meshes are stored in
+     * the node structure.
+     * @param pScene The scene to construct the return data in.
+     * @param pNode The target node structure that references the
+     *   constructed meshes.
+     * @param pMeshes The array of meshes to convert
+     */
+    void CreateMeshes( aiScene* pScene, aiNode* pNode,
+        const std::vector<XFile::Mesh*>& pMeshes);
+
+    // -------------------------------------------------------------------
+    /** Converts the animations from the given imported data and creates
+    *  them in the scene.
+     * @param pScene The scene to hold to converted animations
+     * @param pData The data to read the animations from
+     */
+    void CreateAnimations( aiScene* pScene, const XFile::Scene* pData);
+
+    // -------------------------------------------------------------------
+    /** Converts all materials in the given array and stores them in the
+     *  scene's material list.
+     * @param pScene The scene to hold the converted materials.
+     * @param pMaterials The material array to convert.
+     */
+    void ConvertMaterials( aiScene* pScene, std::vector<XFile::Material>& pMaterials);
+
+protected:
+    /** Buffer to hold the loaded file */
+    std::vector<char> mBuffer;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_BASEIMPORTER_H_INC