WIP of assimp integration.

Engine/lib/assimp/code/PlyLoader.h

@@ -0,0 +1,140 @@
+/*
+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  PLYLoader.h
+ *  @brief Declaration of the .ply importer class.
+ */
+#ifndef AI_PLYLOADER_H_INCLUDED
+#define AI_PLYLOADER_H_INCLUDED
+
+#include <assimp/BaseImporter.h>
+#include <assimp/types.h>
+#include "PlyParser.h"
+#include <vector>
+
+struct aiNode;
+struct aiMaterial;
+struct aiMesh;
+
+namespace Assimp {
+
+using namespace PLY;
+
+// ---------------------------------------------------------------------------
+/** Importer class to load the stanford PLY file format
+*/
+class PLYImporter : public BaseImporter
+{
+public:
+    PLYImporter();
+    ~PLYImporter();
+
+public:
+
+    // -------------------------------------------------------------------
+    /** 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;
+
+    // -------------------------------------------------------------------
+    /** Extract a vertex from the DOM
+    */
+    void LoadVertex(const PLY::Element* pcElement, const PLY::ElementInstance* instElement, unsigned int pos);
+
+    // -------------------------------------------------------------------
+    /** Extract a face from the DOM
+    */
+    void LoadFace(const PLY::Element* pcElement, const PLY::ElementInstance* instElement, unsigned int pos);
+
+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);
+
+protected:
+    // -------------------------------------------------------------------
+    /** Extract a material list from the DOM
+    */
+    void LoadMaterial(std::vector<aiMaterial*>* pvOut, std::string &defaultTexture, const bool pointsOnly);
+
+    // -------------------------------------------------------------------
+    /** Static helper to parse a color from four single channels in
+    */
+    static void GetMaterialColor(
+        const std::vector<PLY::PropertyInstance>& avList,
+        unsigned int aiPositions[4],
+        PLY::EDataType aiTypes[4],
+        aiColor4D* clrOut);
+
+    // -------------------------------------------------------------------
+    /** Static helper to parse a color channel value. The input value
+    *  is normalized to 0-1.
+    */
+    static ai_real NormalizeColorValue (
+        PLY::PropertyInstance::ValueUnion val,
+        PLY::EDataType eType);
+
+    /** Buffer to hold the loaded file */
+    unsigned char* mBuffer;
+
+    /** Document object model representation extracted from the file */
+    PLY::DOM* pcDOM;
+
+    /** Mesh generated by loader */
+    aiMesh* mGeneratedMesh;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_3DSIMPORTER_H_INC