add assimp submodule

1 files changed, 237 insertions, 0 deletions

diff --git a/src/mesh/assimp-master/code/AssetLib/LWS/LWSLoader.h b/src/mesh/assimp-master/code/AssetLib/LWS/LWSLoader.h
new file mode 100644
index 0000000..225186f
--- /dev/null
+++ b/src/mesh/assimp-master/code/AssetLib/LWS/LWSLoader.h
@@ -0,0 +1,237 @@
+/*
+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  LWSLoader.h
+ *  @brief Declaration of the LightWave scene importer class.
+ */
+#pragma once
+#ifndef AI_LWSLOADER_H_INCLUDED
+#define AI_LWSLOADER_H_INCLUDED
+
+#include "AssetLib/LWO/LWOFileData.h"
+
+#include <assimp/BaseImporter.h>
+#include <assimp/SceneCombiner.h>
+
+struct aiImporterDesc;
+
+namespace Assimp {
+
+class BatchLoader;
+class Importer;
+class IOSystem;
+
+namespace LWS {
+
+// ---------------------------------------------------------------------------
+/** Represents an element in a LWS file.
+ *
+ *  This can either be a single data line - <name> <value> or a data
+ *  group - { name <data_line0> ... n }
+ */
+class Element {
+public:
+    Element() {}
+
+    // first: name, second: rest
+    std::string tokens[2];
+    std::list<Element> children;
+
+    //! Recursive parsing function
+    void Parse(const char *&buffer);
+};
+
+#define AI_LWS_MASK (0xffffffff >> 4u)
+
+// ---------------------------------------------------------------------------
+/** Represents a LWS scenegraph element
+ */
+struct NodeDesc {
+    NodeDesc() :
+            type(),
+            id(),
+            number(0),
+            parent(0),
+            name(),
+            isPivotSet(false),
+            lightColor(1.f, 1.f, 1.f),
+            lightIntensity(1.f),
+            lightType(0),
+            lightFalloffType(0),
+            lightConeAngle(45.f),
+            lightEdgeAngle(),
+            parent_resolved(nullptr) {}
+
+    enum {
+
+        OBJECT = 1,
+        LIGHT = 2,
+        CAMERA = 3,
+        BONE = 4
+    } type; // type of node
+
+    // if object: path
+    std::string path;
+    unsigned int id;
+
+    // number of object
+    unsigned int number;
+
+    // index of parent index
+    unsigned int parent;
+
+    // lights & cameras & dummies: name
+    const char *name;
+
+    // animation channels
+    std::list<LWO::Envelope> channels;
+
+    // position of pivot point
+    aiVector3D pivotPos;
+    bool isPivotSet;
+
+    // color of light source
+    aiColor3D lightColor;
+
+    // intensity of light source
+    float lightIntensity;
+
+    // type of light source
+    unsigned int lightType;
+
+    // falloff type of light source
+    unsigned int lightFalloffType;
+
+    // cone angle of (spot) light source
+    float lightConeAngle;
+
+    // soft cone angle of (spot) light source
+    float lightEdgeAngle;
+
+    // list of resolved children
+    std::list<NodeDesc *> children;
+
+    // resolved parent node
+    NodeDesc *parent_resolved;
+
+    // for std::find()
+    bool operator==(unsigned int num) const {
+        if (!num)
+            return false;
+        unsigned int _type = num >> 28u;
+
+        return _type == static_cast<unsigned int>(type) && (num & AI_LWS_MASK) == number;
+    }
+};
+
+} // end namespace LWS
+
+// ---------------------------------------------------------------------------
+/** LWS (LightWave Scene Format) importer class.
+ *
+ *  This class does heavily depend on the LWO importer class. LWS files
+ *  contain mainly descriptions how LWO objects are composed together
+ *  in a scene.
+*/
+class LWSImporter : public BaseImporter {
+public:
+    LWSImporter();
+    ~LWSImporter() override;
+
+    // -------------------------------------------------------------------
+    // Check whether we can read a specific file
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler,
+            bool checkSig) const override;
+
+protected:
+    // -------------------------------------------------------------------
+    // Get list of supported extensions
+    const aiImporterDesc *GetInfo() const override;
+
+    // -------------------------------------------------------------------
+    // Import file into given scene data structure
+    void InternReadFile(const std::string &pFile, aiScene *pScene,
+            IOSystem *pIOHandler) override;
+
+    // -------------------------------------------------------------------
+    // Setup import properties
+    void SetupProperties(const Importer *pImp) override;
+
+private:
+    // -------------------------------------------------------------------
+    // Read an envelope description
+    void ReadEnvelope(const LWS::Element &dad, LWO::Envelope &out);
+
+    // -------------------------------------------------------------------
+    // Read an envelope description for the older LW file format
+    void ReadEnvelope_Old(std::list<LWS::Element>::const_iterator &it,
+            const std::list<LWS::Element>::const_iterator &end,
+            LWS::NodeDesc &nodes,
+            unsigned int version);
+
+    // -------------------------------------------------------------------
+    // Setup a nice name for a node
+    void SetupNodeName(aiNode *nd, LWS::NodeDesc &src);
+
+    // -------------------------------------------------------------------
+    // Recursively build the scenegraph
+    void BuildGraph(aiNode *nd,
+            LWS::NodeDesc &src,
+            std::vector<AttachmentInfo> &attach,
+            BatchLoader &batch,
+            aiCamera **&camOut,
+            aiLight **&lightOut,
+            std::vector<aiNodeAnim *> &animOut);
+
+    // -------------------------------------------------------------------
+    // Try several dirs until we find the right location of a LWS file.
+    std::string FindLWOFile(const std::string &in);
+
+private:
+    bool configSpeedFlag;
+    IOSystem *io;
+    double first, last, fps;
+    bool noSkeletonMesh;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_LWSIMPORTER_H_INC