src/dawn/wire/client/Instance.h

// Copyright 2021 The Dawn & Tint Authors
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#ifndef SRC_DAWN_WIRE_CLIENT_INSTANCE_H_
#define SRC_DAWN_WIRE_CLIENT_INSTANCE_H_

#include <memory>

#include "absl/container/flat_hash_set.h"
#include "dawn/wire/WireClient.h"
#include "dawn/wire/WireCmd_autogen.h"
#include "src/dawn/wire/client/EventManager.h"
#include "src/dawn/wire/client/ObjectBase.h"

namespace dawn::wire::client {

void APISupportedWGSLLanguageFeaturesFreeMembers(
    WGPUSupportedWGSLLanguageFeatures supportedFeatures);
void APISupportedInstanceFeaturesFreeMembers(WGPUSupportedInstanceFeatures supportedFeatures);

class Instance final : public ObjectBase {
  public:
    explicit Instance(const ObjectBaseParams& params);

    ObjectType GetObjectType() const override;

    EventManager& GetEventManager() const;

    // Validate and initialize the client side state. Note the *actual* native
    // instance is not created via the wire, but gets injected separately.
    WireResult Initialize(const InstanceDescriptor* descriptor);

    Future APIRequestAdapter(const RequestAdapterOptions* options,
                             const WGPURequestAdapterCallbackInfo& callbackInfo);

    void APIProcessEvents();
    wgpu::WaitStatus APIWaitAny(Span<FutureWaitInfo> infos, uint64_t timeoutNS);

    bool APIHasWGSLLanguageFeature(wgpu::WGSLLanguageFeatureName feature) const;
    void APIGetWGSLLanguageFeatures(SupportedWGSLLanguageFeatures* features) const;

    Surface* APICreateSurface(const SurfaceDescriptor* desc) const;

  private:
    void GatherWGSLFeatures(const DawnWireWGSLControl* wgslControl,
                            const DawnWGSLBlocklist* wgslBlocklist);

    absl::flat_hash_set<wgpu::WGSLLanguageFeatureName> mWGSLFeatures;
    std::unique_ptr<EventManager> mEventManager;
};

}  // namespace dawn::wire::client

#endif  // SRC_DAWN_WIRE_CLIENT_INSTANCE_H_