src/dawn/native/webgpu/BackendWGPU.h

// Copyright 2025 The Dawn & Tint Authors
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#ifndef SRC_DAWN_NATIVE_WEBGPU_BACKENDWGPU_H_
#define SRC_DAWN_NATIVE_WEBGPU_BACKENDWGPU_H_

#include <vector>

#include "dawn/native/BackendConnection.h"

namespace dawn::native::webgpu {

class PhysicalDevice;

class Backend : public BackendConnection {
  public:
    Backend(InstanceBase* instance, wgpu::BackendType backendType);
    ~Backend() override;

    std::vector<Ref<PhysicalDeviceBase>> DiscoverPhysicalDevices(
        const UnpackedPtr<RequestAdapterOptions>& options) override;

    const DawnProcTable& GetFunctions() const;
    WGPUInstance GetInnerInstance() const;

  private:
    // The dawn proc table used as the underlying backend. It can be specified when creating the
    // backend. This is different from the static global gProcTable.
    DawnProcTable mDawnProcs;
    WGPUInstance mInnerInstance = nullptr;
};

}  // namespace dawn::native::webgpu

#endif  // SRC_DAWN_NATIVE_WEBGPU_BACKENDWGPU_H_