// Copyright 2023 The Dawn & Tint Authors
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#include <memory>

#include "dawn/native/d3d12/DeviceD3D12.h"
#include "dawn/native/d3d12/QueueD3D12.h"
#include "dawn/tests/white_box/GPUTimestampCalibrationTests.h"
#include "partition_alloc/pointers/raw_ptr.h"

namespace dawn {
namespace {

class GPUTimestampCalibrationTestsD3D12 : public GPUTimestampCalibrationTestBackend {
  public:
    explicit GPUTimestampCalibrationTestsD3D12(const wgpu::Device& device) {
        mBackendDevice = native::d3d12::ToBackend(native::FromAPI(device.Get()));
        mBackendQueue = native::d3d12::ToBackend(mBackendDevice->GetQueue());
    }

    bool IsSupported() const override { return true; }

    void GetTimestampCalibration(uint64_t* gpuTimestamp, uint64_t* cpuTimestamp) override {
        mBackendQueue->GetCommandQueue()->GetClockCalibration(gpuTimestamp, cpuTimestamp);
    }

    float GetTimestampPeriod() const override { return mBackendDevice->GetTimestampPeriodInNS(); }

  private:
    raw_ptr<native::d3d12::Device> mBackendDevice;
    raw_ptr<native::d3d12::Queue> mBackendQueue;
};

}  // anonymous namespace

// static
std::unique_ptr<GPUTimestampCalibrationTestBackend> GPUTimestampCalibrationTestBackend::Create(
    const wgpu::Device& device) {
    return std::make_unique<GPUTimestampCalibrationTestsD3D12>(device);
}

}  // namespace dawn