command_allocator_pool.h

#pragma once

#include "util/vector.h"
#include "util/queue.h"
#include "util/utility.h"
#include "renderer/d3d12_includes.h"

namespace blowbox
{
    class CommandAllocatorPool
    {
    public:
        CommandAllocatorPool(D3D12_COMMAND_LIST_TYPE type);

        ~CommandAllocatorPool();

        ID3D12CommandAllocator* RequestAllocator(uint64_t completed_fence_value);

        void DiscardAllocator(uint64_t fence_value, ID3D12CommandAllocator* allocator);

        inline size_t GetPoolSize() { return allocator_pool_.size(); }

    private:
        D3D12_COMMAND_LIST_TYPE type_;                                          
        Vector<ID3D12CommandAllocator*> allocator_pool_;                        
        Queue<Pair<uint64_t, ID3D12CommandAllocator*>> available_allocators_;   
    };
}