D3D12DynamicDescriptorHeap.hpp

#pragma once
#include <memory>
#include <queue>
#include <directx/d3d12.h>
#include <DescriptorHeap.h>
#include "FreeList.hpp"
 
 
namespace RGL {
    template<uint32_t totalCount = 2048u>
    struct D3D12DynamicDescriptorHeap : public DirectX::DescriptorHeap  {
        using index_t = std::remove_const_t<std::make_unsigned_t<decltype(totalCount)>>;
    private:
        ID3D12Device* owningDevice;
        FreeList<index_t, totalCount> freeList;
    public:
 
        D3D12DynamicDescriptorHeap(decltype(owningDevice) device, D3D12_DESCRIPTOR_HEAP_TYPE type, D3D12_DESCRIPTOR_HEAP_FLAGS flags) : owningDevice(device), DescriptorHeap(device, type, flags, totalCount) {}
 
        index_t AllocateSingle() {
            return freeList.Allocate();
        }
 
        void DeallocateSingle(index_t index) {
            freeList.Deallocate(index);
        }
        
    };
}