107 lines
3.0 KiB
C++
107 lines
3.0 KiB
C++
// Copyright (C) 2020 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Utility module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#pragma once
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#ifndef NAZARA_FORMATS_OBJPARSER_HPP
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#define NAZARA_FORMATS_OBJPARSER_HPP
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#include <Nazara/Prerequisites.hpp>
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#include <Nazara/Math/Vector3.hpp>
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#include <Nazara/Math/Vector4.hpp>
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#include <Nazara/Utility/Config.hpp>
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#include <vector>
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namespace Nz
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{
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class NAZARA_UTILITY_API OBJParser
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{
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public:
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struct Mesh;
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OBJParser() = default;
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~OBJParser() = default;
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inline void Clear();
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bool Check(Stream& stream);
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inline std::string* GetMaterials();
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inline const std::string* GetMaterials() const;
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inline std::size_t GetMaterialCount() const;
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inline Mesh* GetMeshes();
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inline const Mesh* GetMeshes() const;
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inline std::size_t GetMeshCount() const;
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inline const std::filesystem::path& GetMtlLib() const;
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inline Vector3f* GetNormals();
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inline const Vector3f* GetNormals() const;
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inline std::size_t GetNormalCount() const;
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inline Vector4f* GetPositions();
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inline const Vector4f* GetPositions() const;
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inline std::size_t GetPositionCount() const;
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inline Vector3f* GetTexCoords();
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inline const Vector3f* GetTexCoords() const;
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inline std::size_t GetTexCoordCount() const;
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bool Parse(Stream& stream, std::size_t reservedVertexCount = 100);
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bool Save(Stream& stream) const;
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inline std::string* SetMaterialCount(std::size_t materialCount);
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inline Mesh* SetMeshCount(std::size_t meshCount);
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inline void SetMtlLib(const std::filesystem::path& mtlLib);
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inline Vector3f* SetNormalCount(std::size_t normalCount);
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inline Vector4f* SetPositionCount(std::size_t positionCount);
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inline Vector3f* SetTexCoordCount(std::size_t texCoordCount);
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struct Face
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{
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std::size_t firstVertex;
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std::size_t vertexCount;
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};
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struct FaceVertex
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{
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std::size_t normal;
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std::size_t position;
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std::size_t texCoord;
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};
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struct Mesh
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{
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std::vector<Face> faces;
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std::vector<FaceVertex> vertices;
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std::string name;
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std::size_t material;
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};
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private:
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bool Advance(bool required = true);
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template<typename T> void Emit(const T& text) const;
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inline void EmitLine() const;
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template<typename T> void EmitLine(const T& line) const;
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inline void Error(const std::string& message);
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inline void Flush() const;
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inline void Warning(const std::string& message);
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inline bool UnrecognizedLine(bool error = false);
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std::vector<Mesh> m_meshes;
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std::vector<std::string> m_materials;
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std::vector<Vector3f> m_normals;
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std::vector<Vector4f> m_positions;
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std::vector<Vector3f> m_texCoords;
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mutable Stream* m_currentStream;
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std::string m_currentLine;
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std::filesystem::path m_mtlLib;
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mutable std::ostringstream m_outputStream;
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bool m_keepLastLine;
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unsigned int m_lineCount;
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unsigned int m_errorCount;
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};
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}
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#include <Nazara/Utility/Formats/OBJParser.inl>
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#endif // NAZARA_FORMATS_OBJPARSER_HPP
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