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/*
Open Asset Import Library (assimp)
----------------------------------------------------------------------
Copyright (c) 2006-2020, 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.
----------------------------------------------------------------------
*/
#ifndef OBJ_FILEPARSER_H_INC
#define OBJ_FILEPARSER_H_INC
#include <assimp/IOStreamBuffer.h>
#include <assimp/material.h>
#include <assimp/mesh.h>
#include <assimp/vector2.h>
#include <assimp/vector3.h>
#include <map>
#include <memory>
#include <string>
#include <vector>
namespace Assimp {
namespace ObjFile {
struct Model;
struct Object;
struct Material;
struct Point3;
struct Point2;
} // namespace ObjFile
class ObjFileImporter;
class IOSystem;
class ProgressHandler;
/// \class ObjFileParser
/// \brief Parser for a obj waveform file
class ASSIMP_API ObjFileParser {
public:
static const size_t Buffersize = 4096;
typedef std::vector<char> DataArray;
typedef std::vector<char>::iterator DataArrayIt;
typedef std::vector<char>::const_iterator ConstDataArrayIt;
/// @brief The default constructor.
ObjFileParser();
/// @brief Constructor with data array.
ObjFileParser(IOStreamBuffer<char> &streamBuffer, const std::string &modelName, IOSystem *io, ProgressHandler *progress, const std::string &originalObjFileName);
/// @brief Destructor
~ObjFileParser();
/// @brief If you want to load in-core data.
void setBuffer(std::vector<char> &buffer);
/// @brief Model getter.
ObjFile::Model *GetModel() const;
ObjFileParser(const ObjFileParser&) = delete;
ObjFileParser &operator=(const ObjFileParser& ) = delete;
protected:
/// Parse the loaded file
void parseFile(IOStreamBuffer<char> &streamBuffer);
/// Method to copy the new delimited word in the current line.
void copyNextWord(char *pBuffer, size_t length);
/// Method to copy the new line.
// void copyNextLine(char *pBuffer, size_t length);
/// Get the number of components in a line.
size_t getNumComponentsInDataDefinition();
/// Stores the vector
size_t getTexCoordVector(std::vector<aiVector3D> &point3d_array);
/// Stores the following 3d vector.
void getVector3(std::vector<aiVector3D> &point3d_array);
/// Stores the following homogeneous vector as a 3D vector
void getHomogeneousVector3(std::vector<aiVector3D> &point3d_array);
/// Stores the following two 3d vectors on the line.
void getTwoVectors3(std::vector<aiVector3D> &point3d_array_a, std::vector<aiVector3D> &point3d_array_b);
/// Stores the following 3d vector.
void getVector2(std::vector<aiVector2D> &point2d_array);
/// Stores the following face.
void getFace(aiPrimitiveType type);
/// Reads the material description.
void getMaterialDesc();
/// Gets a comment.
void getComment();
/// Gets a a material library.
void getMaterialLib();
/// Creates a new material.
void getNewMaterial();
/// Gets the group name from file.
void getGroupName();
/// Gets the group number from file.
void getGroupNumber();
/// Gets the group number and resolution from file.
void getGroupNumberAndResolution();
/// Returns the index of the material. Is -1 if not material was found.
int getMaterialIndex(const std::string &strMaterialName);
/// Parse object name
void getObjectName();
/// Creates a new object.
void createObject(const std::string &strObjectName);
/// Creates a new mesh.
void createMesh(const std::string &meshName);
/// Returns true, if a new mesh instance must be created.
bool needsNewMesh(const std::string &rMaterialName);
/// Error report in token
void reportErrorTokenInFace();
private:
// Copy and assignment constructor should be private
// because the class contains pointer to allocated memory
/// Default material name
static constexpr char DEFAULT_MATERIAL[] = AI_DEFAULT_MATERIAL_NAME;
//! Iterator to current position in buffer
DataArrayIt m_DataIt;
//! Iterator to end position of buffer
DataArrayIt m_DataItEnd;
//! Pointer to model instance
std::unique_ptr<ObjFile::Model> m_pModel;
//! Current line (for debugging)
unsigned int m_uiLine;
//! Helper buffer
char m_buffer[Buffersize];
/// Pointer to IO system instance.
IOSystem *m_pIO;
//! Pointer to progress handler
ProgressHandler *m_progress;
/// Path to the current model, name of the obj file where the buffer comes from
const std::string m_originalObjFileName;
};
} // Namespace Assimp
#endif
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