#ifndef INCLUDE_DYNAMIC_TEXTURE_DATA_IMPLEMENTATION
#	error Never include this file directly include 'dynamic_texture_buffer.hpp'
#endif


inline assets::texture_data::texture_data(
	std::unique_ptr<value_type[]>&& data,
	const dim_type width,
	const dim_type height,
	const texture_components::flags components
) :
	m_data{ std::move(data) },
	m_width{ width },
	m_height{ height },
	m_components{ components }
{};

inline assets::texture_data::texture_data(const assets::texture_data& other) :
	m_data{ new value_type[other.component_count()] },
	m_width{ other.m_width },
	m_height{ other.m_height },
	m_components{ other.m_components }
{
	std::copy_n(other.m_data.get(), other.m_width * other.m_height, this->m_data.get());
}

inline assets::texture_data::texture_data(texture_data&& other) noexcept :
	m_data{ std::move(other.m_data) },
	m_width{ other.m_width },
	m_height{ other.m_height },
	m_components{ other.m_components }
{
	other.m_width = 0;
	other.m_height = 0;
	other.m_components = texture_components::flags::none;
}

inline assets::texture_data& assets::texture_data::operator=(const assets::texture_data& other)
{
	if (this != &other) [[likely]]
	{

		const auto m_size = this->component_count();
		const auto o_size = other.component_count();

		if (o_size > m_size) {
			this->~texture_data();
			this->m_data.reset(new value_type[o_size]);
		}

		std::copy_n(other.m_data.get(), o_size, this->m_data.get());

		this->m_width = other.m_width;
		this->m_height = other.m_height;
		this->m_components = other.m_components;
	}

	return *this;
}

inline assets::texture_data& assets::texture_data::operator=(texture_data&& other) noexcept
{
	if (this != &other) [[likely]]
	{
		this->~texture_data();

		this->m_data = std::move(other.m_data);
		this->m_width = other.m_width;
		this->m_height = other.m_height;

		other.m_width = 0;
		other.m_height = 0;
		other.m_components = texture_components::flags::none;
	}
	return *this;
}

inline assets::texture_components::flags assets::texture_data::components() const
{
	return m_components;
}

inline assets::texture_data::dim_type assets::texture_data::width() const
{
	return m_width;
}

inline assets::texture_data::dim_type assets::texture_data::height() const
{
	return m_height;
}

inline std::pair<assets::texture_data::dim_type, assets::texture_data::dim_type> assets::texture_data::dimensions() const
{
	return { m_width, m_height };
}

inline assets::texture_data::size_type assets::texture_data::pixel_count() const
{
	return static_cast<size_type>(m_width) * static_cast<size_type>(m_height);
}

inline assets::texture_data::size_type assets::texture_data::component_count() const
{
	return std::popcount(static_cast<std::underlying_type_t<texture_components::flags>>(m_components));
}

inline assets::texture_data::size_type assets::texture_data::size() const
{
	return pixel_count() * component_count();
}

inline assets::texture_data::const_pointer assets::texture_data::data() const
{
	return m_data.get();
}

inline assets::texture_data::pointer assets::texture_data::data()
{
	return m_data.get();
}

inline assets::texture_data::const_iterator assets::texture_data::begin() const
{
	return data();
}

inline assets::texture_data::iterator assets::texture_data::begin()
{
	return data();
}

inline assets::texture_data::const_iterator assets::texture_data::end() const
{
	return begin() + component_count();
}

inline assets::texture_data::iterator assets::texture_data::end()
{
	return begin() + component_count();
}

inline assets::texture_data::const_iterator assets::texture_data::cbegin() const
{
	return const_cast<const_iterator>(begin());
}

inline assets::texture_data::const_iterator assets::texture_data::cend() const
{
	return const_cast<const_iterator>(begin());
}

inline void assets::texture_data::clear()
{
	m_data.reset();
	m_width = 0;
	m_height = 0;
	m_components = {};
}