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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 */
include GraphicsMessages;
include MemoryReportTypes;
include HangTypes;
include PrefsTypes;
include protocol PAPZInputBridge;
include protocol PCompositorManager;
include protocol PImageBridge;
include protocol PProfiler;
include protocol PVRGPU;
include protocol PVRManager;
include protocol PVideoBridge;
include protocol PVsyncBridge;
include protocol PUiCompositorController;
include protocol PRemoteDecoderManager;
#if defined(MOZ_SANDBOX) && defined(MOZ_DEBUG) && defined(ENABLE_TESTS)
include protocol PSandboxTesting;
include "mozilla/ipc/ByteBufUtils.h";
include "mozilla/layers/LayersMessageUtils.h";
using base::ProcessId from "base/process.h";
using mozilla::dom::NativeThreadId from "mozilla/dom/NativeThreadId.h";
using mozilla::Telemetry::HistogramAccumulation from "mozilla/TelemetryComms.h";
using mozilla::Telemetry::KeyedHistogramAccumulation from "mozilla/TelemetryComms.h";
using mozilla::Telemetry::ScalarAction from "mozilla/TelemetryComms.h";
using mozilla::Telemetry::KeyedScalarAction from "mozilla/TelemetryComms.h";
using mozilla::Telemetry::ChildEventData from "mozilla/TelemetryComms.h";
using mozilla::Telemetry::DiscardedData from "mozilla/TelemetryComms.h";
using mozilla::gfx::Feature from "gfxFeature.h";
using mozilla::gfx::Fallback from "gfxFallback.h";
using mozilla::layers::LayersId from "mozilla/layers/LayersTypes.h";
using mozilla::layers::OverlayInfo from "mozilla/layers/OverlayInfo.h";
using mozilla::layers::SwapChainInfo from "mozilla/layers/OverlayInfo.h";
using mozilla::media::MediaCodecsSupported from "MediaCodecsSupport.h";
using mozilla::layers::VideoBridgeSource from "mozilla/layers/VideoBridgeUtils.h";
namespace mozilla {
namespace gfx {
struct LayerTreeIdMapping {
LayersId layersId;
ProcessId ownerId;
// This protocol allows the UI process to talk to the GPU process. There is one
// instance of this protocol, with the GPUParent living on the main thread of
// the GPU process and the GPUChild living on the main thread of the UI process.
sync protocol PGPU
// Sent by the UI process to initiate core settings.
async Init(GfxVarUpdate[] vars,
DevicePrefs devicePrefs,
LayerTreeIdMapping[] mapping,
GfxInfoFeatureStatus[] features,
uint32_t wrNamespace);
async InitCompositorManager(Endpoint<PCompositorManagerParent> endpoint);
async InitVsyncBridge(Endpoint<PVsyncBridgeParent> endpoint);
async InitImageBridge(Endpoint<PImageBridgeParent> endpoint);
async InitVideoBridge(Endpoint<PVideoBridgeParent> endpoint, VideoBridgeSource aSource);
async InitVRManager(Endpoint<PVRManagerParent> endpoint);
async InitUiCompositorController(LayersId rootLayerTreeId, Endpoint<PUiCompositorControllerParent> endpoint);
async InitAPZInputBridge(LayersId layersId,
Endpoint<PAPZInputBridgeParent> endpoint);
async InitProfiler(Endpoint<PProfilerChild> endpoint);
// Forward GPU process its endpoints to the VR process.
async InitVR(Endpoint<PVRGPUChild> endpoint);
// Called to update a gfx variable.
async UpdateVar(GfxVarUpdate var);
async PreferenceUpdate(Pref pref);
// Create a new content-process compositor bridge.
async NewContentCompositorManager(Endpoint<PCompositorManagerParent> endpoint);
async NewContentImageBridge(Endpoint<PImageBridgeParent> endpoint);
async NewContentVRManager(Endpoint<PVRManagerParent> endpoint);
async NewContentRemoteDecoderManager(Endpoint<PRemoteDecoderManagerParent> endpoint);
// Called to notify the GPU process of who owns a layersId.
sync AddLayerTreeIdMapping(LayerTreeIdMapping mapping);
async RemoveLayerTreeIdMapping(LayerTreeIdMapping mapping);
// Request the current DeviceStatus from the GPU process. This blocks until
// one is available (i.e., Init has completed).
sync GetDeviceStatus() returns (GPUDeviceData status);
// Request to simulate device reset and to get the updated DeviceStatus from
// the GPU process. This blocks until one is available (i.e., Init has completed).
async SimulateDeviceReset();
// Have a message be broadcasted to the GPU process by the GPU process
// observer service.
async NotifyGpuObservers(nsCString aTopic);
async RequestMemoryReport(uint32_t generation,
bool anonymize,
bool minimizeMemoryUsage,
FileDescriptor? DMDFile)
returns (uint32_t aGeneration);
async ShutdownVR();
// Functions supporting PerfStats data collection.
async UpdatePerfStatsCollectionMask(uint64_t aMask);
async CollectPerfStatsJSON() returns (nsCString aStats);
#if defined(MOZ_SANDBOX) && defined(MOZ_DEBUG) && defined(ENABLE_TESTS)
async InitSandboxTesting(Endpoint<PSandboxTestingChild> aEndpoint);
// Tells the gpu process to flush any pending telemetry.
// Used in tests and ping assembly. Buffer contains bincoded Rust structs.
async FlushFOGData() returns (ByteBuf buf);
// Test-only method.
// Asks the gpu process to trigger test-only instrumentation.
// The unused returned value is to have a promise we can await.
async TestTriggerMetrics() returns (bool unused);
// Causes the GPU process to crash. Used for tests and diagnostics.
async CrashProcess();
// Sent when the GPU process has initialized devices. This occurs once, after
// Init().
async InitComplete(GPUDeviceData data);
// Sent when APZ detects checkerboarding and apz checkerboard reporting is enabled.
async ReportCheckerboard(uint32_t severity, nsCString log);
// Graphics errors, analogous to PContent::GraphicsError
async GraphicsError(nsCString aError);
async InitCrashReporter(NativeThreadId threadId);
async CreateVRProcess();
async ShutdownVRProcess();
// Have a message be broadcasted to the UI process by the UI process
// observer service.
async NotifyUiObservers(nsCString aTopic);
// Messages for reporting telemetry to the UI process.
async AccumulateChildHistograms(HistogramAccumulation[] accumulations);
async AccumulateChildKeyedHistograms(KeyedHistogramAccumulation[] accumulations);
async UpdateChildScalars(ScalarAction[] actions);
async UpdateChildKeyedScalars(KeyedScalarAction[] actions);
async RecordChildEvents(ChildEventData[] events);
async RecordDiscardedData(DiscardedData data);
async DeclareStable();
async NotifyDeviceReset(GPUDeviceData status);
async NotifyOverlayInfo(OverlayInfo info);
async NotifySwapChainInfo(SwapChainInfo info);
async FlushMemory(nsString reason);
async AddMemoryReport(MemoryReport aReport);
// Update the UI process after a feature's status has changed. This is used
// outside of the normal startup flow.
async UpdateFeature(Feature aFeature, FeatureFailure aChange);
// Notify about:support/Telemetry that a fallback occurred.
async UsedFallback(Fallback aFallback, nsCString message);
async BHRThreadHang(HangDetails aDetails);
// Update the cached list of codec supported following a check in the
// GPU parent.
async UpdateMediaCodecsSupported(MediaCodecsSupported aSupported);
// Sent from time-to-time to limit the amount of telemetry vulnerable to loss
// Buffer contains bincoded Rust structs.
async FOGData(ByteBuf buf);
} // namespace gfx
} // namespace mozilla