spk_index_buffer_object.hpp

#pragma once
 
#include "structure/opengl/spk_buffer_object.hpp"
#include "structure/opengl/spk_opengl_includes.hpp"
#include <cstdint>
#include <initializer_list>
#include <span>
#include <vector>
 
namespace spk
{
    namespace OpenGL
    {
        class IndexBufferObject : public BufferObject
        {
        private:
            using BufferObject::data;
            using BufferObject::editData;
            using BufferObject::pushData;
            using BufferObject::reserve;
            using BufferObject::resize;
            using BufferObject::setData;
            using BufferObject::size;
            using BufferObject::swapData;
 
        public:
            IndexBufferObject(Usage p_usage);
            IndexBufferObject(const IndexBufferObject &p_other) = default;
            IndexBufferObject &operator=(const IndexBufferObject &p_other) = default;

            void reserve(size_t p_nbIndexes);
            void resize(size_t p_nbIndexes);

            void setIndexes(const std::vector<uint32_t> &p_indexes);

            void pushIndex(uint32_t p_index);
            void pushIndexes(const std::vector<uint32_t> &p_indexes);
            void pushIndexes(std::initializer_list<uint32_t> p_values);

            size_t nbIndexes() const;
            size_t nbTriangles() const;
            std::vector<uint32_t> pull() const;

            std::span<uint32_t> indices();
            std::span<const uint32_t> indices() const;
        };
 
        using IBO = IndexBufferObject;
    }
}