attribute_data.h

// © Joseph Cameron - MIT License
 
#ifndef GDK_GRAPHICS_ATTRIBUTE_DATA_H
#define GDK_GRAPHICS_ATTRIBUTE_DATA_H
 
#include <cstddef>
#include <gdk/graphics/data_types.h>
 
#include <vector>
#include <initializer_list>
#include <span>
 
namespace gdk::graphics {
    using component_type = floating_point_type; 

    class attribute_data final {
    public:
        std::size_t number_of_components_per_attribute() const;
 
        std::size_t number_of_attributes_in_component_data() const;

        const std::vector<component_type> &components() const;

        std::vector<component_type> &components();
 
        void push_back(const attribute_data &rhs);
 
        attribute_data &operator+=(const attribute_data &rhs);
 
        void overwrite(std::size_t vertexOffset, const attribute_data &other);

        attribute_data &operator=(attribute_data &&a) = default;
        attribute_data(attribute_data &&) = default;

        attribute_data &operator=(const attribute_data &a) = default;
        attribute_data(const attribute_data &) = default;
 
        attribute_data(std::span<const component_type> aComponents, const std::size_t aComponentCount);
 
        attribute_data(std::initializer_list<component_type> aComponents, const std::size_t aComponentCount);
        attribute_data() = default;
        ~attribute_data() = default;
 
    private:
        std::size_t m_NumberOfComponentsPerAttribute{};
        std::vector<component_type> m_Components{};
    };
}
 
#endif