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#ifndef SRC_DAWN_NATIVE_D3D12_GPUDESCRIPTORHEAPALLOCATIOND3D12_H_
#define SRC_DAWN_NATIVE_D3D12_GPUDESCRIPTORHEAPALLOCATIOND3D12_H_

#include "src/dawn/native/IntegerTypes.h"
#include "src/dawn/native/d3d12/IntegerTypes.h"
#include "src/dawn/native/d3d12/d3d12_platform.h"

namespace dawn::native::d3d12 {

// Wrapper for a handle into a GPU-only descriptor heap.
class GPUDescriptorHeapAllocation {
  public:
    GPUDescriptorHeapAllocation() = default;
    GPUDescriptorHeapAllocation(D3D12_GPU_DESCRIPTOR_HANDLE baseDescriptor,
                                ExecutionSerial lastUsageSerial,
                                HeapVersionID heapSerial);

    D3D12_GPU_DESCRIPTOR_HANDLE GetBaseDescriptor() const;
    ExecutionSerial GetLastUsageSerial() const;
    HeapVersionID GetHeapSerial() const;

  private:
    D3D12_GPU_DESCRIPTOR_HANDLE mBaseDescriptor = {0};
    ExecutionSerial mLastUsageSerial = ExecutionSerial(0);
    HeapVersionID mHeapSerial = HeapVersionID(0);
};

}  // namespace dawn::native::d3d12

#endif  // SRC_DAWN_NATIVE_D3D12_GPUDESCRIPTORHEAPALLOCATIOND3D12_H_
