1 /*
2 Open Asset Import Library (assimp)
3 ----------------------------------------------------------------------
4 
5 Copyright (c) 2006-2021, assimp team
6 
7 All rights reserved.
8 
9 Redistribution and use of this software in source and binary forms,
10 with or without modification, are permitted provided that the
11 following conditions are met:
12 
13 * Redistributions of source code must retain the above
14   copyright notice, this list of conditions and the
15   following disclaimer.
16 
17 * Redistributions in binary form must reproduce the above
18   copyright notice, this list of conditions and the
19   following disclaimer in the documentation and/or other
20   materials provided with the distribution.
21 
22 * Neither the name of the assimp team, nor the names of its
23   contributors may be used to endorse or promote products
24   derived from this software without specific prior
25   written permission of the assimp team.
26 
27 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
30 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
32 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
33 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
34 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
35 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
36 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
37 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 
39 ----------------------------------------------------------------------
40 */
41 
42 /**
43  *  @file Definition of the .b3d importer class.
44  */
45 #pragma once
46 #ifndef AI_B3DIMPORTER_H_INC
47 #define AI_B3DIMPORTER_H_INC
48 
49 #include <assimp/types.h>
50 #include <assimp/mesh.h>
51 #include <assimp/material.h>
52 #include <assimp/BaseImporter.h>
53 
54 #include <memory>
55 #include <vector>
56 
57 struct aiNodeAnim;
58 struct aiNode;
59 struct aiAnimation;
60 
61 namespace Assimp{
62 
63 class B3DImporter : public BaseImporter{
64 public:
65     B3DImporter() = default;
66     ~B3DImporter() override;
67     bool CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const override;
68 
69 protected:
70     const aiImporterDesc* GetInfo () const override;
71     void InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler) override;
72 
73 private:
74 
75     int ReadByte();
76     int ReadInt();
77     float ReadFloat();
78     aiVector2D ReadVec2();
79     aiVector3D ReadVec3();
80     aiQuaternion ReadQuat();
81     std::string ReadString();
82     std::string ReadChunk();
83     void ExitChunk();
84     size_t ChunkSize();
85 
86     template<class T>
87     T *to_array( const std::vector<T> &v );
88 
89     struct Vertex{
90         aiVector3D vertex;
91         aiVector3D normal;
92         aiVector3D texcoords;
93         unsigned char bones[4];
94         float weights[4];
95     };
96 
97     AI_WONT_RETURN void Oops() AI_WONT_RETURN_SUFFIX;
98     AI_WONT_RETURN void Fail(const std::string &str) AI_WONT_RETURN_SUFFIX;
99 
100     void ReadTEXS();
101     void ReadBRUS();
102 
103     void ReadVRTS();
104     void ReadTRIS( int v0 );
105     void ReadMESH();
106     void ReadBONE( int id );
107     void ReadKEYS( aiNodeAnim *nodeAnim );
108     void ReadANIM();
109 
110     aiNode *ReadNODE( aiNode *parent );
111 
112     void ReadBB3D( aiScene *scene );
113 
114     size_t _pos;
115     std::vector<unsigned char> _buf;
116     std::vector<size_t> _stack;
117 
118     std::vector<std::string> _textures;
119     std::vector<std::unique_ptr<aiMaterial> > _materials;
120 
121     int _vflags,_tcsets,_tcsize;
122     std::vector<Vertex> _vertices;
123 
124     std::vector<aiNode*> _nodes;
125     std::vector<std::unique_ptr<aiMesh> > _meshes;
126     std::vector<std::unique_ptr<aiNodeAnim> > _nodeAnims;
127     std::vector<std::unique_ptr<aiAnimation> > _animations;
128 };
129 
130 }
131 
132 #endif
133