src/dawn/native/d3d12/D3D12Backend.cpp

// Copyright 2019 The Dawn & Tint Authors
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// D3D12Backend.cpp: contains the definition of symbols exported by D3D12Backend.h so that they
// can be compiled twice: once export (shared library), once not exported (static library)

#include "dawn/native/D3D12Backend.h"

#include <memory>
#include <utility>

#include "dawn/common/Log.h"
#include "dawn/common/Math.h"
#include "dawn/native/d3d12/DeviceD3D12.h"
#include "dawn/native/d3d12/ResidencyManagerD3D12.h"
#include "dawn/native/d3d12/TextureD3D12.h"

namespace dawn::native::d3d12 {

Microsoft::WRL::ComPtr<ID3D12Device> GetD3D12Device(WGPUDevice device) {
    return ToBackend(FromAPI(device))->GetD3D12Device();
}

uint64_t SetExternalMemoryReservation(WGPUDevice device,
                                      uint64_t requestedReservationSize,
                                      MemorySegment memorySegment) {
    Device* backendDevice = ToBackend(FromAPI(device));

    auto deviceGuard = backendDevice->GetGuard();

    return backendDevice->GetResidencyManager()->SetExternalMemoryReservation(
        memorySegment, requestedReservationSize);
}

}  // namespace dawn::native::d3d12