GPUChild.h - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef _include_mozilla_gfx_ipc_GPUChild_h_

#define _include_mozilla_gfx_ipc_GPUChild_h_

#include "mozilla/RefPtr.h"

#include "mozilla/UniquePtr.h"

#include "mozilla/ipc/CrashReporterHelper.h"

#include "mozilla/gfx/PGPUChild.h"

#include "mozilla/gfx/gfxVarReceiver.h"

namespace mozilla {

namespace dom {

class MemoryReportRequestHost;

}  // namespace dom

namespace gfx {

class GPUProcessHost;

class GPUChild final : public ipc::CrashReporterHelper<GeckoProcessType_GPU>,

                       public PGPUChild,

                       public gfxVarReceiver {

  typedef mozilla::dom::MemoryReportRequestHost MemoryReportRequestHost;

 public:

  NS_INLINE_DECL_REFCOUNTING(GPUChild, final)

  explicit GPUChild(GPUProcessHost* aHost);

  void Init();

  bool EnsureGPUReady();

  void MarkWaitForVarUpdate() { mWaitForVarUpdate = true; }

  // Notifies that an unexpected GPU process shutdown has been noticed by a

  // different IPDL actor, and the GPU process is being torn down as a result.

  // ActorDestroy may receive either NormalShutdown or AbnormalShutdown as a

  // reason, depending on timings, but either way we treat the shutdown as

  // abnormal.

  void OnUnexpectedShutdown();

  // gfxVarReceiver overrides.

  void OnVarChanged(const GfxVarUpdate& aVar) override;

  // PGPUChild overrides.

  mozilla::ipc::IPCResult RecvInitComplete(const GPUDeviceData& aData);

  mozilla::ipc::IPCResult RecvDeclareStable();

  mozilla::ipc::IPCResult RecvReportCheckerboard(const uint32_t& aSeverity,

                                                 const nsCString& aLog);

  mozilla::ipc::IPCResult RecvCreateVRProcess();

  mozilla::ipc::IPCResult RecvShutdownVRProcess();

  mozilla::ipc::IPCResult RecvAccumulateChildHistograms(

      nsTArray<HistogramAccumulation>&& aAccumulations);

  mozilla::ipc::IPCResult RecvAccumulateChildKeyedHistograms(

      nsTArray<KeyedHistogramAccumulation>&& aAccumulations);

  mozilla::ipc::IPCResult RecvUpdateChildScalars(

      nsTArray<ScalarAction>&& aScalarActions);

  mozilla::ipc::IPCResult RecvUpdateChildKeyedScalars(

      nsTArray<KeyedScalarAction>&& aScalarActions);

  mozilla::ipc::IPCResult RecvRecordChildEvents(

      nsTArray<ChildEventData>&& events);

  mozilla::ipc::IPCResult RecvRecordDiscardedData(

      const DiscardedData& aDiscardedData);

  void ActorDestroy(ActorDestroyReason aWhy) override;

  mozilla::ipc::IPCResult RecvGraphicsError(const nsCString& aError);

  mozilla::ipc::IPCResult RecvNotifyUiObservers(const nsCString& aTopic);

  mozilla::ipc::IPCResult RecvNotifyDeviceReset(const GPUDeviceData& aData);

  mozilla::ipc::IPCResult RecvNotifyOverlayInfo(const OverlayInfo aInfo);

  mozilla::ipc::IPCResult RecvNotifySwapChainInfo(const SwapChainInfo aInfo);

  mozilla::ipc::IPCResult RecvNotifyDisableRemoteCanvas();

  mozilla::ipc::IPCResult RecvFlushMemory(const nsString& aReason);

  mozilla::ipc::IPCResult RecvAddMemoryReport(const MemoryReport& aReport);

  mozilla::ipc::IPCResult RecvUpdateFeature(const Feature& aFeature,

                                            const FeatureFailure& aChange);

  mozilla::ipc::IPCResult RecvUsedFallback(const Fallback& aFallback,

                                           const nsCString& aMessage);

  mozilla::ipc::IPCResult RecvBHRThreadHang(const HangDetails& aDetails);

  mozilla::ipc::IPCResult RecvUpdateMediaCodecsSupported(

      const media::MediaCodecsSupported& aSupported);

  mozilla::ipc::IPCResult RecvFOGData(ByteBuf&& aBuf);

  bool SendRequestMemoryReport(const uint32_t& aGeneration,

                               const bool& aAnonymize,

                               const bool& aMinimizeMemoryUsage,

                               const Maybe<ipc::FileDescriptor>& aDMDFile);

  static void Destroy(RefPtr<GPUChild>&& aChild);

 private:

  virtual ~GPUChild();

  GPUProcessHost* mHost;

  UniquePtr<MemoryReportRequestHost> mMemoryReportRequest;

  bool mGPUReady;

  bool mWaitForVarUpdate = false;

  bool mUnexpectedShutdown = false;

};

}  // namespace gfx

}  // namespace mozilla

#endif  // _include_mozilla_gfx_ipc_GPUChild_h_