#pragma once

#if !defined(VK_CAPTURE_DATA_POOL_HPP_INCLUDED)
#define VK_CAPTURE_DATA_POOL_HPP_INCLUDED 1

#include <array>
#include <cstddef>
#include <cstdint>
#include <memory>
#include <vector>

namespace vk_capture
{

//
// public defines
//

//
// public constants
//

//
// public types
//

struct DataPool
{
    static constexpr std::size_t PAGE_SIZE = 4096 * 1024;
    static_assert(PAGE_SIZE % alignof(std::max_align_t) == 0);
    
    struct alignas(std::max_align_t) Page : std::array<std::uint8_t, PAGE_SIZE> {};

    using page_ptr_t = std::unique_ptr<Page>;

    std::vector<page_ptr_t> pages;
    std::size_t offset = 0;

    void* allocate(std::size_t bytes, std::size_t alignment = 1);
    inline void reset() { offset = 0; }
};

//
// public functions
//

} // namespace vk_capture

#endif // !defined(VK_CAPTURE_DATA_POOL_HPP_INCLUDED)