VertexArray.hpp

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#ifndef GALAXY_GRAPHICS_GL_VERTEXARRAY_HPP_
#define GALAXY_GRAPHICS_GL_VERTEXARRAY_HPP_
 
#include "galaxy/graphics/gl/VertexBuffer.hpp"
 
namespace galaxy
{
    class VertexArray final
    {
    public:
        VertexArray();
 
        VertexArray(VertexArray&&) noexcept;
 
        VertexArray& operator=(VertexArray&&) noexcept;
 
        ~VertexArray();
 
        void buffer(std::span<Vertex> vertices, std::span<unsigned int> indices);
 
        void reserve(const int vertex_count, const int index_count);
 
        void
        sub_buffer(const unsigned int vi, const int vertex_size, const std::span<Vertex> vertices, const unsigned int ei, const int index_size, std::span<unsigned int> indices);
 
        void sub_buffer_vertices(const unsigned int vi, const int vertex_size, const std::span<Vertex> vertices) const;
 
        void sub_buffer_indices(const unsigned int ei, const int index_size, std::span<unsigned int> indices) const;
 
        void erase(const unsigned int vi, const int vertex_count, const unsigned int ei, const int index_count);
 
        void clear();
 
        void bind() const;
 
        void unbind() const;
 
        [[nodiscard]]
        int count() const noexcept;
 
        [[nodiscard]]
        void* offset() noexcept;
 
        [[nodiscard]]
        VertexBuffer& vbo() noexcept;
 
        [[nodiscard]]
        unsigned int id() const noexcept;
 
    private:
        VertexArray(const VertexArray&) = delete;
 
        VertexArray& operator=(const VertexArray&) = delete;
 
    private:
        unsigned int m_id;
 
        VertexBuffer m_vbo;
    };
} // namespace galaxy
 
#endif