165 lines
5.9 KiB
C++
165 lines
5.9 KiB
C++
/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2020, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the
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following conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------
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*/
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#ifndef OBJ_FILEPARSER_H_INC
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#define OBJ_FILEPARSER_H_INC
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#include <assimp/IOStreamBuffer.h>
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#include <assimp/mesh.h>
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#include <assimp/vector2.h>
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#include <assimp/vector3.h>
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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namespace Assimp {
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namespace ObjFile {
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struct Model;
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struct Object;
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struct Material;
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struct Point3;
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struct Point2;
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} // namespace ObjFile
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class ObjFileImporter;
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class IOSystem;
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class ProgressHandler;
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/// \class ObjFileParser
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/// \brief Parser for a obj waveform file
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class ASSIMP_API ObjFileParser {
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public:
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static const size_t Buffersize = 4096;
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typedef std::vector<char> DataArray;
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typedef std::vector<char>::iterator DataArrayIt;
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typedef std::vector<char>::const_iterator ConstDataArrayIt;
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public:
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/// @brief The default constructor.
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ObjFileParser();
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/// @brief Constructor with data array.
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ObjFileParser(IOStreamBuffer<char> &streamBuffer, const std::string &modelName, IOSystem *io, ProgressHandler *progress, const std::string &originalObjFileName);
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/// @brief Destructor
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~ObjFileParser();
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/// @brief If you want to load in-core data.
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void setBuffer(std::vector<char> &buffer);
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/// @brief Model getter.
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ObjFile::Model *GetModel() const;
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protected:
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/// Parse the loaded file
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void parseFile(IOStreamBuffer<char> &streamBuffer);
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/// Method to copy the new delimited word in the current line.
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void copyNextWord(char *pBuffer, size_t length);
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/// Method to copy the new line.
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// void copyNextLine(char *pBuffer, size_t length);
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/// Get the number of components in a line.
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size_t getNumComponentsInDataDefinition();
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/// Stores the vector
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size_t getTexCoordVector(std::vector<aiVector3D> &point3d_array);
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/// Stores the following 3d vector.
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void getVector3(std::vector<aiVector3D> &point3d_array);
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/// Stores the following homogeneous vector as a 3D vector
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void getHomogeneousVector3(std::vector<aiVector3D> &point3d_array);
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/// Stores the following two 3d vectors on the line.
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void getTwoVectors3(std::vector<aiVector3D> &point3d_array_a, std::vector<aiVector3D> &point3d_array_b);
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/// Stores the following 3d vector.
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void getVector2(std::vector<aiVector2D> &point2d_array);
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/// Stores the following face.
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void getFace(aiPrimitiveType type);
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/// Reads the material description.
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void getMaterialDesc();
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/// Gets a comment.
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void getComment();
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/// Gets a a material library.
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void getMaterialLib();
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/// Creates a new material.
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void getNewMaterial();
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/// Gets the group name from file.
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void getGroupName();
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/// Gets the group number from file.
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void getGroupNumber();
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/// Gets the group number and resolution from file.
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void getGroupNumberAndResolution();
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/// Returns the index of the material. Is -1 if not material was found.
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int getMaterialIndex(const std::string &strMaterialName);
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/// Parse object name
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void getObjectName();
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/// Creates a new object.
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void createObject(const std::string &strObjectName);
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/// Creates a new mesh.
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void createMesh(const std::string &meshName);
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/// Returns true, if a new mesh instance must be created.
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bool needsNewMesh(const std::string &rMaterialName);
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/// Error report in token
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void reportErrorTokenInFace();
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private:
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// Copy and assignment constructor should be private
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// because the class contains pointer to allocated memory
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ObjFileParser(const ObjFileParser &rhs);
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ObjFileParser &operator=(const ObjFileParser &rhs);
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/// Default material name
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static const std::string DEFAULT_MATERIAL;
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//! Iterator to current position in buffer
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DataArrayIt m_DataIt;
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//! Iterator to end position of buffer
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DataArrayIt m_DataItEnd;
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//! Pointer to model instance
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std::unique_ptr<ObjFile::Model> m_pModel;
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//! Current line (for debugging)
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unsigned int m_uiLine;
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//! Helper buffer
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char m_buffer[Buffersize];
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/// Pointer to IO system instance.
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IOSystem *m_pIO;
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//! Pointer to progress handler
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ProgressHandler *m_progress;
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/// Path to the current model, name of the obj file where the buffer comes from
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const std::string m_originalObjFileName;
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};
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} // Namespace Assimp
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#endif
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