| /* | 
 |  * Copyright (C) 2018 The Android Open Source Project | 
 |  * | 
 |  * Licensed under the Apache License, Version 2.0 (the "License"); | 
 |  * you may not use this file except in compliance with the License. | 
 |  * You may obtain a copy of the License at | 
 |  * | 
 |  *      http://www.apache.org/licenses/LICENSE-2.0 | 
 |  * | 
 |  * Unless required by applicable law or agreed to in writing, software | 
 |  * distributed under the License is distributed on an "AS IS" BASIS, | 
 |  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
 |  * See the License for the specific language governing permissions and | 
 |  * limitations under the License. | 
 |  */ | 
 |  | 
 | #pragma once | 
 |  | 
 | #include <compositionengine/Display.h> | 
 | #include <compositionengine/LayerFECompositionState.h> | 
 | #include <compositionengine/OutputLayer.h> | 
 | #include <compositionengine/impl/CompositionEngine.h> | 
 | #include <compositionengine/impl/Display.h> | 
 | #include <compositionengine/impl/OutputLayerCompositionState.h> | 
 | #include <compositionengine/mock/DisplaySurface.h> | 
 | #include <gui/ScreenCaptureResults.h> | 
 |  | 
 | #include "BufferQueueLayer.h" | 
 | #include "BufferStateLayer.h" | 
 | #include "ContainerLayer.h" | 
 | #include "DisplayDevice.h" | 
 | #include "EffectLayer.h" | 
 | #include "FakeVsyncConfiguration.h" | 
 | #include "FrameTracer/FrameTracer.h" | 
 | #include "Layer.h" | 
 | #include "NativeWindowSurface.h" | 
 | #include "Scheduler/MessageQueue.h" | 
 | #include "Scheduler/RefreshRateConfigs.h" | 
 | #include "StartPropertySetThread.h" | 
 | #include "SurfaceFlinger.h" | 
 | #include "SurfaceFlingerDefaultFactory.h" | 
 | #include "SurfaceInterceptor.h" | 
 | #include "TestableScheduler.h" | 
 | #include "mock/DisplayHardware/MockComposer.h" | 
 | #include "mock/MockFrameTimeline.h" | 
 | #include "mock/MockFrameTracer.h" | 
 |  | 
 | namespace android { | 
 |  | 
 | class EventThread; | 
 |  | 
 | namespace renderengine { | 
 |  | 
 | class RenderEngine; | 
 |  | 
 | } // namespace renderengine | 
 |  | 
 | namespace Hwc2 { | 
 |  | 
 | class Composer; | 
 |  | 
 | } // namespace Hwc2 | 
 |  | 
 | namespace hal = android::hardware::graphics::composer::hal; | 
 |  | 
 | namespace surfaceflinger::test { | 
 |  | 
 | class Factory final : public surfaceflinger::Factory { | 
 | public: | 
 |     ~Factory() = default; | 
 |  | 
 |     std::unique_ptr<HWComposer> createHWComposer(const std::string&) override { | 
 |         return nullptr; | 
 |     } | 
 |  | 
 |     std::unique_ptr<MessageQueue> createMessageQueue() override { | 
 |         return std::make_unique<android::impl::MessageQueue>(); | 
 |     } | 
 |  | 
 |     std::unique_ptr<scheduler::VsyncConfiguration> createVsyncConfiguration( | 
 |             Fps /*currentRefreshRate*/) override { | 
 |         return std::make_unique<scheduler::FakePhaseOffsets>(); | 
 |     } | 
 |  | 
 |     std::unique_ptr<Scheduler> createScheduler( | 
 |             const std::shared_ptr<scheduler::RefreshRateConfigs>&, ISchedulerCallback&) override { | 
 |         return nullptr; | 
 |     } | 
 |  | 
 |     sp<SurfaceInterceptor> createSurfaceInterceptor() override { | 
 |         return new android::impl::SurfaceInterceptor(); | 
 |     } | 
 |  | 
 |     sp<StartPropertySetThread> createStartPropertySetThread(bool timestampPropertyValue) override { | 
 |         return new StartPropertySetThread(timestampPropertyValue); | 
 |     } | 
 |  | 
 |     sp<DisplayDevice> createDisplayDevice(DisplayDeviceCreationArgs& creationArgs) override { | 
 |         return new DisplayDevice(creationArgs); | 
 |     } | 
 |  | 
 |     sp<GraphicBuffer> createGraphicBuffer(uint32_t width, uint32_t height, PixelFormat format, | 
 |                                           uint32_t layerCount, uint64_t usage, | 
 |                                           std::string requestorName) override { | 
 |         return new GraphicBuffer(width, height, format, layerCount, usage, requestorName); | 
 |     } | 
 |  | 
 |     void createBufferQueue(sp<IGraphicBufferProducer>* outProducer, | 
 |                            sp<IGraphicBufferConsumer>* outConsumer, | 
 |                            bool consumerIsSurfaceFlinger) override { | 
 |         if (!mCreateBufferQueue) { | 
 |             BufferQueue::createBufferQueue(outProducer, outConsumer, consumerIsSurfaceFlinger); | 
 |             return; | 
 |         } | 
 |         mCreateBufferQueue(outProducer, outConsumer, consumerIsSurfaceFlinger); | 
 |     } | 
 |  | 
 |     sp<IGraphicBufferProducer> createMonitoredProducer(const sp<IGraphicBufferProducer>& producer, | 
 |                                                        const sp<SurfaceFlinger>& flinger, | 
 |                                                        const wp<Layer>& layer) override { | 
 |         return new MonitoredProducer(producer, flinger, layer); | 
 |     } | 
 |  | 
 |     sp<BufferLayerConsumer> createBufferLayerConsumer(const sp<IGraphicBufferConsumer>& consumer, | 
 |                                                       renderengine::RenderEngine& renderEngine, | 
 |                                                       uint32_t textureName, Layer* layer) override { | 
 |         return new BufferLayerConsumer(consumer, renderEngine, textureName, layer); | 
 |     } | 
 |  | 
 |     std::unique_ptr<surfaceflinger::NativeWindowSurface> createNativeWindowSurface( | 
 |             const sp<IGraphicBufferProducer>& producer) override { | 
 |         if (!mCreateNativeWindowSurface) return nullptr; | 
 |         return mCreateNativeWindowSurface(producer); | 
 |     } | 
 |  | 
 |     std::unique_ptr<compositionengine::CompositionEngine> createCompositionEngine() override { | 
 |         return compositionengine::impl::createCompositionEngine(); | 
 |     } | 
 |  | 
 |     sp<BufferQueueLayer> createBufferQueueLayer(const LayerCreationArgs&) override { | 
 |         return nullptr; | 
 |     } | 
 |  | 
 |     sp<BufferStateLayer> createBufferStateLayer(const LayerCreationArgs&) override { | 
 |         return nullptr; | 
 |     } | 
 |  | 
 |     sp<EffectLayer> createEffectLayer(const LayerCreationArgs&) override { return nullptr; } | 
 |  | 
 |     sp<ContainerLayer> createContainerLayer(const LayerCreationArgs&) override { | 
 |         return nullptr; | 
 |     } | 
 |  | 
 |     std::unique_ptr<FrameTracer> createFrameTracer() override { | 
 |         return std::make_unique<mock::FrameTracer>(); | 
 |     } | 
 |  | 
 |     std::unique_ptr<frametimeline::FrameTimeline> createFrameTimeline( | 
 |             std::shared_ptr<TimeStats> timeStats, pid_t surfaceFlingerPid = 0) override { | 
 |         return std::make_unique<mock::FrameTimeline>(timeStats, surfaceFlingerPid); | 
 |     } | 
 |  | 
 |     using CreateBufferQueueFunction = | 
 |             std::function<void(sp<IGraphicBufferProducer>* /* outProducer */, | 
 |                                sp<IGraphicBufferConsumer>* /* outConsumer */, | 
 |                                bool /* consumerIsSurfaceFlinger */)>; | 
 |     CreateBufferQueueFunction mCreateBufferQueue; | 
 |  | 
 |     using CreateNativeWindowSurfaceFunction = | 
 |             std::function<std::unique_ptr<surfaceflinger::NativeWindowSurface>( | 
 |                     const sp<IGraphicBufferProducer>&)>; | 
 |     CreateNativeWindowSurfaceFunction mCreateNativeWindowSurface; | 
 |  | 
 |     using CreateCompositionEngineFunction = | 
 |             std::function<std::unique_ptr<compositionengine::CompositionEngine>()>; | 
 |     CreateCompositionEngineFunction mCreateCompositionEngine; | 
 | }; | 
 |  | 
 | } // namespace surfaceflinger::test | 
 |  | 
 | class TestableSurfaceFlinger final : private ISchedulerCallback { | 
 | public: | 
 |     using HotplugEvent = SurfaceFlinger::HotplugEvent; | 
 |  | 
 |     SurfaceFlinger* flinger() { return mFlinger.get(); } | 
 |     TestableScheduler* scheduler() { return mScheduler; } | 
 |  | 
 |     // Extend this as needed for accessing SurfaceFlinger private (and public) | 
 |     // functions. | 
 |  | 
 |     void setupRenderEngine(std::unique_ptr<renderengine::RenderEngine> renderEngine) { | 
 |         mFlinger->mCompositionEngine->setRenderEngine(std::move(renderEngine)); | 
 |     } | 
 |  | 
 |     void setupComposer(std::unique_ptr<Hwc2::Composer> composer) { | 
 |         mFlinger->mCompositionEngine->setHwComposer( | 
 |                 std::make_unique<impl::HWComposer>(std::move(composer))); | 
 |     } | 
 |  | 
 |     void setupTimeStats(const std::shared_ptr<TimeStats>& timeStats) { | 
 |         mFlinger->mCompositionEngine->setTimeStats(timeStats); | 
 |     } | 
 |  | 
 |     // The ISchedulerCallback argument can be nullptr for a no-op implementation. | 
 |     void setupScheduler(std::unique_ptr<scheduler::VsyncController> vsyncController, | 
 |                         std::unique_ptr<scheduler::VSyncTracker> vsyncTracker, | 
 |                         std::unique_ptr<EventThread> appEventThread, | 
 |                         std::unique_ptr<EventThread> sfEventThread, | 
 |                         ISchedulerCallback* callback = nullptr, bool hasMultipleModes = false) { | 
 |         DisplayModes modes{DisplayMode::Builder(0) | 
 |                                    .setId(DisplayModeId(0)) | 
 |                                    .setPhysicalDisplayId(PhysicalDisplayId(0)) | 
 |                                    .setVsyncPeriod(16'666'667) | 
 |                                    .setGroup(0) | 
 |                                    .build()}; | 
 |  | 
 |         if (hasMultipleModes) { | 
 |             modes.emplace_back(DisplayMode::Builder(1) | 
 |                                        .setId(DisplayModeId(1)) | 
 |                                        .setPhysicalDisplayId(PhysicalDisplayId(0)) | 
 |                                        .setVsyncPeriod(11'111'111) | 
 |                                        .setGroup(0) | 
 |                                        .build()); | 
 |         } | 
 |  | 
 |         const auto currMode = DisplayModeId(0); | 
 |         mRefreshRateConfigs = std::make_shared<scheduler::RefreshRateConfigs>(modes, currMode); | 
 |         const auto currFps = mRefreshRateConfigs->getCurrentRefreshRate().getFps(); | 
 |         mFlinger->mVsyncConfiguration = mFactory.createVsyncConfiguration(currFps); | 
 |         mFlinger->mVsyncModulator = sp<scheduler::VsyncModulator>::make( | 
 |                 mFlinger->mVsyncConfiguration->getCurrentConfigs()); | 
 |         mFlinger->mRefreshRateStats = | 
 |                 std::make_unique<scheduler::RefreshRateStats>(*mFlinger->mTimeStats, currFps, | 
 |                                                               /*powerMode=*/hal::PowerMode::OFF); | 
 |  | 
 |         mScheduler = new TestableScheduler(std::move(vsyncController), std::move(vsyncTracker), | 
 |                                            mRefreshRateConfigs, *(callback ?: this)); | 
 |  | 
 |         mFlinger->mAppConnectionHandle = mScheduler->createConnection(std::move(appEventThread)); | 
 |         mFlinger->mSfConnectionHandle = mScheduler->createConnection(std::move(sfEventThread)); | 
 |         resetScheduler(mScheduler); | 
 |     } | 
 |  | 
 |     void resetScheduler(Scheduler* scheduler) { mFlinger->mScheduler.reset(scheduler); } | 
 |  | 
 |     TestableScheduler& mutableScheduler() const { return *mScheduler; } | 
 |  | 
 |     using CreateBufferQueueFunction = surfaceflinger::test::Factory::CreateBufferQueueFunction; | 
 |     void setCreateBufferQueueFunction(CreateBufferQueueFunction f) { | 
 |         mFactory.mCreateBufferQueue = f; | 
 |     } | 
 |  | 
 |     using CreateNativeWindowSurfaceFunction = | 
 |             surfaceflinger::test::Factory::CreateNativeWindowSurfaceFunction; | 
 |     void setCreateNativeWindowSurface(CreateNativeWindowSurfaceFunction f) { | 
 |         mFactory.mCreateNativeWindowSurface = f; | 
 |     } | 
 |  | 
 |     void setInternalDisplayPrimaries(const ui::DisplayPrimaries& primaries) { | 
 |         memcpy(&mFlinger->mInternalDisplayPrimaries, &primaries, sizeof(ui::DisplayPrimaries)); | 
 |     } | 
 |  | 
 |     static auto& mutableLayerDrawingState(const sp<Layer>& layer) { return layer->mDrawingState; } | 
 |  | 
 |     auto& mutableStateLock() { return mFlinger->mStateLock; } | 
 |  | 
 |     static auto findOutputLayerForDisplay(const sp<Layer>& layer, | 
 |                                           const sp<const DisplayDevice>& display) { | 
 |         return layer->findOutputLayerForDisplay(display.get()); | 
 |     } | 
 |  | 
 |     static void setLayerSidebandStream(const sp<Layer>& layer, | 
 |                                        const sp<NativeHandle>& sidebandStream) { | 
 |         layer->mDrawingState.sidebandStream = sidebandStream; | 
 |         layer->mSidebandStream = sidebandStream; | 
 |         layer->editCompositionState()->sidebandStream = sidebandStream; | 
 |     } | 
 |  | 
 |     void setLayerCompositionType(const sp<Layer>& layer, hal::Composition type) { | 
 |         auto outputLayer = findOutputLayerForDisplay(layer, mFlinger->getDefaultDisplayDevice()); | 
 |         LOG_ALWAYS_FATAL_IF(!outputLayer); | 
 |         auto& state = outputLayer->editState(); | 
 |         LOG_ALWAYS_FATAL_IF(!outputLayer->getState().hwc); | 
 |         (*state.hwc).hwcCompositionType = type; | 
 |     } | 
 |  | 
 |     static void setLayerPotentialCursor(const sp<Layer>& layer, bool potentialCursor) { | 
 |         layer->mPotentialCursor = potentialCursor; | 
 |     } | 
 |  | 
 |     static void setLayerDrawingParent(const sp<Layer>& layer, const sp<Layer>& drawingParent) { | 
 |         layer->mDrawingParent = drawingParent; | 
 |     } | 
 |  | 
 |     /* ------------------------------------------------------------------------ | 
 |      * Forwarding for functions being tested | 
 |      */ | 
 |  | 
 |     auto createDisplay(const String8& displayName, bool secure) { | 
 |         return mFlinger->createDisplay(displayName, secure); | 
 |     } | 
 |  | 
 |     auto destroyDisplay(const sp<IBinder>& displayToken) { | 
 |         return mFlinger->destroyDisplay(displayToken); | 
 |     } | 
 |  | 
 |     void enableHalVirtualDisplays(bool enable) { mFlinger->enableHalVirtualDisplays(enable); } | 
 |  | 
 |     auto setupNewDisplayDeviceInternal( | 
 |             const wp<IBinder>& displayToken, | 
 |             std::shared_ptr<compositionengine::Display> compositionDisplay, | 
 |             const DisplayDeviceState& state, | 
 |             const sp<compositionengine::DisplaySurface>& dispSurface, | 
 |             const sp<IGraphicBufferProducer>& producer) NO_THREAD_SAFETY_ANALYSIS { | 
 |         return mFlinger->setupNewDisplayDeviceInternal(displayToken, compositionDisplay, state, | 
 |                                                        dispSurface, producer); | 
 |     } | 
 |  | 
 |     auto handleTransactionLocked(uint32_t transactionFlags) { | 
 |         Mutex::Autolock _l(mFlinger->mStateLock); | 
 |         return mFlinger->handleTransactionLocked(transactionFlags); | 
 |     } | 
 |  | 
 |     void onComposerHalHotplug(hal::HWDisplayId hwcDisplayId, hal::Connection connection) { | 
 |         mFlinger->onComposerHalHotplug(hwcDisplayId, connection); | 
 |     } | 
 |  | 
 |     auto setDisplayStateLocked(const DisplayState& s) { | 
 |         Mutex::Autolock _l(mFlinger->mStateLock); | 
 |         return mFlinger->setDisplayStateLocked(s); | 
 |     } | 
 |  | 
 |     // Allow reading display state without locking, as if called on the SF main thread. | 
 |     auto onInitializeDisplays() NO_THREAD_SAFETY_ANALYSIS { | 
 |         return mFlinger->onInitializeDisplays(); | 
 |     } | 
 |  | 
 |     auto notifyPowerBoost(int32_t boostId) { return mFlinger->notifyPowerBoost(boostId); } | 
 |  | 
 |     // Allow reading display state without locking, as if called on the SF main thread. | 
 |     auto setPowerModeInternal(const sp<DisplayDevice>& display, | 
 |                               hal::PowerMode mode) NO_THREAD_SAFETY_ANALYSIS { | 
 |         return mFlinger->setPowerModeInternal(display, mode); | 
 |     } | 
 |  | 
 |     auto onMessageReceived(int32_t what) { | 
 |         return mFlinger->onMessageReceived(what, /*vsyncId=*/0, systemTime()); | 
 |     } | 
 |  | 
 |     auto renderScreenImplLocked(const RenderArea& renderArea, | 
 |                                 SurfaceFlinger::TraverseLayersFunction traverseLayers, | 
 |                                 const std::shared_ptr<renderengine::ExternalTexture>& buffer, | 
 |                                 bool forSystem, bool regionSampling) { | 
 |         ScreenCaptureResults captureResults; | 
 |         return mFlinger->renderScreenImplLocked(renderArea, traverseLayers, buffer, forSystem, | 
 |                                                 regionSampling, false /* grayscale */, | 
 |                                                 captureResults); | 
 |     } | 
 |  | 
 |     auto traverseLayersInLayerStack(ui::LayerStack layerStack, int32_t uid, | 
 |                                     const LayerVector::Visitor& visitor) { | 
 |         return mFlinger->SurfaceFlinger::traverseLayersInLayerStack(layerStack, uid, visitor); | 
 |     } | 
 |  | 
 |     auto getDisplayNativePrimaries(const sp<IBinder>& displayToken, | 
 |                                    ui::DisplayPrimaries &primaries) { | 
 |         return mFlinger->SurfaceFlinger::getDisplayNativePrimaries(displayToken, primaries); | 
 |     } | 
 |  | 
 |     auto& getTransactionQueue() { return mFlinger->mTransactionQueue; } | 
 |     auto& getPendingTransactionQueue() { return mFlinger->mPendingTransactionQueues; } | 
 |  | 
 |     auto setTransactionState( | 
 |             const FrameTimelineInfo& frameTimelineInfo, const Vector<ComposerState>& states, | 
 |             const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken, | 
 |             const InputWindowCommands& inputWindowCommands, int64_t desiredPresentTime, | 
 |             bool isAutoTimestamp, const client_cache_t& uncacheBuffer, bool hasListenerCallbacks, | 
 |             std::vector<ListenerCallbacks>& listenerCallbacks, uint64_t transactionId) { | 
 |         return mFlinger->setTransactionState(frameTimelineInfo, states, displays, flags, applyToken, | 
 |                                              inputWindowCommands, desiredPresentTime, | 
 |                                              isAutoTimestamp, uncacheBuffer, hasListenerCallbacks, | 
 |                                              listenerCallbacks, transactionId); | 
 |     } | 
 |  | 
 |     auto flushTransactionQueues() { return mFlinger->flushTransactionQueues(); }; | 
 |  | 
 |     auto onTransact(uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) { | 
 |         return mFlinger->onTransact(code, data, reply, flags); | 
 |     } | 
 |  | 
 |     auto getGPUContextPriority() { return mFlinger->getGPUContextPriority(); } | 
 |  | 
 |     auto calculateMaxAcquiredBufferCount(Fps refreshRate, | 
 |                                          std::chrono::nanoseconds presentLatency) const { | 
 |         return SurfaceFlinger::calculateMaxAcquiredBufferCount(refreshRate, presentLatency); | 
 |     } | 
 |  | 
 |     /* ------------------------------------------------------------------------ | 
 |      * Read-only access to private data to assert post-conditions. | 
 |      */ | 
 |  | 
 |     const auto& getAnimFrameTracker() const { return mFlinger->mAnimFrameTracker; } | 
 |     const auto& getHasPoweredOff() const { return mFlinger->mHasPoweredOff; } | 
 |     const auto& getVisibleRegionsDirty() const { return mFlinger->mVisibleRegionsDirty; } | 
 |     auto& getHwComposer() const { | 
 |         return static_cast<impl::HWComposer&>(mFlinger->getHwComposer()); | 
 |     } | 
 |     auto& getCompositionEngine() const { return mFlinger->getCompositionEngine(); } | 
 |  | 
 |     const auto& getCompositorTiming() const { return mFlinger->getBE().mCompositorTiming; } | 
 |  | 
 |     mock::FrameTracer* getFrameTracer() const { | 
 |         return static_cast<mock::FrameTracer*>(mFlinger->mFrameTracer.get()); | 
 |     } | 
 |  | 
 |     /* ------------------------------------------------------------------------ | 
 |      * Read-write access to private data to set up preconditions and assert | 
 |      * post-conditions. | 
 |      */ | 
 |  | 
 |     auto& mutableHasWideColorDisplay() { return SurfaceFlinger::hasWideColorDisplay; } | 
 |     auto& mutableUseColorManagement() { return SurfaceFlinger::useColorManagement; } | 
 |  | 
 |     auto& mutableCurrentState() { return mFlinger->mCurrentState; } | 
 |     auto& mutableDisplayColorSetting() { return mFlinger->mDisplayColorSetting; } | 
 |     auto& mutableDisplays() { return mFlinger->mDisplays; } | 
 |     auto& mutableDrawingState() { return mFlinger->mDrawingState; } | 
 |     auto& mutableEventQueue() { return mFlinger->mEventQueue; } | 
 |     auto& mutableGeometryInvalid() { return mFlinger->mGeometryInvalid; } | 
 |     auto& mutableInterceptor() { return mFlinger->mInterceptor; } | 
 |     auto& mutableMainThreadId() { return mFlinger->mMainThreadId; } | 
 |     auto& mutablePendingHotplugEvents() { return mFlinger->mPendingHotplugEvents; } | 
 |     auto& mutablePhysicalDisplayTokens() { return mFlinger->mPhysicalDisplayTokens; } | 
 |     auto& mutableTexturePool() { return mFlinger->mTexturePool; } | 
 |     auto& mutableTransactionFlags() { return mFlinger->mTransactionFlags; } | 
 |     auto& mutablePowerAdvisor() { return mFlinger->mPowerAdvisor; } | 
 |     auto& mutableDebugDisableHWC() { return mFlinger->mDebugDisableHWC; } | 
 |     auto& mutableMaxRenderTargetSize() { return mFlinger->mMaxRenderTargetSize; } | 
 |  | 
 |     auto& mutableHwcDisplayData() { return getHwComposer().mDisplayData; } | 
 |     auto& mutableHwcPhysicalDisplayIdMap() { return getHwComposer().mPhysicalDisplayIdMap; } | 
 |     auto& mutableInternalHwcDisplayId() { return getHwComposer().mInternalHwcDisplayId; } | 
 |     auto& mutableExternalHwcDisplayId() { return getHwComposer().mExternalHwcDisplayId; } | 
 |     auto& mutableUseFrameRateApi() { return mFlinger->useFrameRateApi; } | 
 |     auto& mutableActiveDisplayToken() { return mFlinger->mActiveDisplayToken; } | 
 |  | 
 |     auto fromHandle(const sp<IBinder>& handle) { | 
 |         return mFlinger->fromHandle(handle); | 
 |     } | 
 |  | 
 |     ~TestableSurfaceFlinger() { | 
 |         // All these pointer and container clears help ensure that GMock does | 
 |         // not report a leaked object, since the SurfaceFlinger instance may | 
 |         // still be referenced by something despite our best efforts to destroy | 
 |         // it after each test is done. | 
 |         mutableDisplays().clear(); | 
 |         mutableCurrentState().displays.clear(); | 
 |         mutableDrawingState().displays.clear(); | 
 |         mutableEventQueue().reset(); | 
 |         mutableInterceptor().clear(); | 
 |         mFlinger->mScheduler.reset(); | 
 |         mFlinger->mCompositionEngine->setHwComposer(std::unique_ptr<HWComposer>()); | 
 |         mFlinger->mCompositionEngine->setRenderEngine( | 
 |                 std::unique_ptr<renderengine::RenderEngine>()); | 
 |     } | 
 |  | 
 |     /* ------------------------------------------------------------------------ | 
 |      * Wrapper classes for Read-write access to private data to set up | 
 |      * preconditions and assert post-conditions. | 
 |      */ | 
 |     struct HWC2Display : public HWC2::impl::Display { | 
 |         HWC2Display(Hwc2::Composer& composer, | 
 |                     const std::unordered_set<hal::Capability>& capabilities, hal::HWDisplayId id, | 
 |                     hal::DisplayType type) | 
 |               : HWC2::impl::Display(composer, capabilities, id, type) {} | 
 |         ~HWC2Display() { | 
 |             // Prevents a call to disable vsyncs. | 
 |             mType = hal::DisplayType::INVALID; | 
 |         } | 
 |  | 
 |         auto& mutableIsConnected() { return this->mIsConnected; } | 
 |         auto& mutableLayers() { return this->mLayers; } | 
 |     }; | 
 |  | 
 |     class FakeHwcDisplayInjector { | 
 |     public: | 
 |         static constexpr hal::HWDisplayId DEFAULT_HWC_DISPLAY_ID = 1000; | 
 |         static constexpr int32_t DEFAULT_WIDTH = 1920; | 
 |         static constexpr int32_t DEFAULT_HEIGHT = 1280; | 
 |         static constexpr int32_t DEFAULT_VSYNC_PERIOD = 16'666'666; | 
 |         static constexpr int32_t DEFAULT_CONFIG_GROUP = 7; | 
 |         static constexpr int32_t DEFAULT_DPI = 320; | 
 |         static constexpr hal::HWConfigId DEFAULT_ACTIVE_CONFIG = 0; | 
 |         static constexpr hal::PowerMode DEFAULT_POWER_MODE = hal::PowerMode::ON; | 
 |  | 
 |         FakeHwcDisplayInjector(HalDisplayId displayId, hal::DisplayType hwcDisplayType, | 
 |                                bool isPrimary) | 
 |               : mDisplayId(displayId), mHwcDisplayType(hwcDisplayType), mIsPrimary(isPrimary) {} | 
 |  | 
 |         auto& setHwcDisplayId(hal::HWDisplayId displayId) { | 
 |             mHwcDisplayId = displayId; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setWidth(int32_t width) { | 
 |             mWidth = width; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setHeight(int32_t height) { | 
 |             mHeight = height; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setVsyncPeriod(int32_t vsyncPeriod) { | 
 |             mVsyncPeriod = vsyncPeriod; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setDpiX(int32_t dpi) { | 
 |             mDpiX = dpi; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setDpiY(int32_t dpi) { | 
 |             mDpiY = dpi; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setActiveConfig(hal::HWConfigId config) { | 
 |             mActiveConfig = config; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setCapabilities(const std::unordered_set<hal::Capability>* capabilities) { | 
 |             mCapabilities = capabilities; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setPowerMode(hal::PowerMode mode) { | 
 |             mPowerMode = mode; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         void inject(TestableSurfaceFlinger* flinger, Hwc2::mock::Composer* composer) { | 
 |             using ::testing::_; | 
 |             using ::testing::DoAll; | 
 |             using ::testing::Return; | 
 |             using ::testing::SetArgPointee; | 
 |  | 
 |             static const std::unordered_set<hal::Capability> defaultCapabilities; | 
 |             if (mCapabilities == nullptr) mCapabilities = &defaultCapabilities; | 
 |  | 
 |             // Caution - Make sure that any values passed by reference here do | 
 |             // not refer to an instance owned by FakeHwcDisplayInjector. This | 
 |             // class has temporary lifetime, while the constructed HWC2::Display | 
 |             // is much longer lived. | 
 |             auto display = std::make_unique<HWC2Display>(*composer, *mCapabilities, mHwcDisplayId, | 
 |                                                          mHwcDisplayType); | 
 |  | 
 |             display->mutableIsConnected() = true; | 
 |             display->setPowerMode(mPowerMode); | 
 |             flinger->mutableHwcDisplayData()[mDisplayId].hwcDisplay = std::move(display); | 
 |  | 
 |             EXPECT_CALL(*composer, getDisplayConfigs(mHwcDisplayId, _)) | 
 |                     .WillRepeatedly( | 
 |                             DoAll(SetArgPointee<1>(std::vector<hal::HWConfigId>{mActiveConfig}), | 
 |                                   Return(hal::Error::NONE))); | 
 |  | 
 |             EXPECT_CALL(*composer, | 
 |                         getDisplayAttribute(mHwcDisplayId, mActiveConfig, hal::Attribute::WIDTH, _)) | 
 |                     .WillRepeatedly(DoAll(SetArgPointee<3>(mWidth), Return(hal::Error::NONE))); | 
 |  | 
 |             EXPECT_CALL(*composer, | 
 |                         getDisplayAttribute(mHwcDisplayId, mActiveConfig, hal::Attribute::HEIGHT, | 
 |                                             _)) | 
 |                     .WillRepeatedly(DoAll(SetArgPointee<3>(mHeight), Return(hal::Error::NONE))); | 
 |  | 
 |             EXPECT_CALL(*composer, | 
 |                         getDisplayAttribute(mHwcDisplayId, mActiveConfig, | 
 |                                             hal::Attribute::VSYNC_PERIOD, _)) | 
 |                     .WillRepeatedly( | 
 |                             DoAll(SetArgPointee<3>(mVsyncPeriod), Return(hal::Error::NONE))); | 
 |  | 
 |             EXPECT_CALL(*composer, | 
 |                         getDisplayAttribute(mHwcDisplayId, mActiveConfig, hal::Attribute::DPI_X, _)) | 
 |                     .WillRepeatedly(DoAll(SetArgPointee<3>(mDpiX), Return(hal::Error::NONE))); | 
 |  | 
 |             EXPECT_CALL(*composer, | 
 |                         getDisplayAttribute(mHwcDisplayId, mActiveConfig, hal::Attribute::DPI_Y, _)) | 
 |                     .WillRepeatedly(DoAll(SetArgPointee<3>(mDpiY), Return(hal::Error::NONE))); | 
 |  | 
 |             EXPECT_CALL(*composer, | 
 |                         getDisplayAttribute(mHwcDisplayId, mActiveConfig, | 
 |                                             hal::Attribute::CONFIG_GROUP, _)) | 
 |                     .WillRepeatedly( | 
 |                             DoAll(SetArgPointee<3>(mConfigGroup), Return(hal::Error::NONE))); | 
 |  | 
 |             if (mHwcDisplayType == hal::DisplayType::PHYSICAL) { | 
 |                 const auto physicalId = PhysicalDisplayId::tryCast(mDisplayId); | 
 |                 LOG_ALWAYS_FATAL_IF(!physicalId); | 
 |                 flinger->mutableHwcPhysicalDisplayIdMap().emplace(mHwcDisplayId, *physicalId); | 
 |                 if (mIsPrimary) { | 
 |                     flinger->mutableInternalHwcDisplayId() = mHwcDisplayId; | 
 |                 } else { | 
 |                     // If there is an external HWC display there should always be an internal ID | 
 |                     // as well. Set it to some arbitrary value. | 
 |                     auto& internalId = flinger->mutableInternalHwcDisplayId(); | 
 |                     if (!internalId) internalId = mHwcDisplayId - 1; | 
 |                     flinger->mutableExternalHwcDisplayId() = mHwcDisplayId; | 
 |                 } | 
 |             } | 
 |         } | 
 |  | 
 |     private: | 
 |         const HalDisplayId mDisplayId; | 
 |         const hal::DisplayType mHwcDisplayType; | 
 |         const bool mIsPrimary; | 
 |  | 
 |         hal::HWDisplayId mHwcDisplayId = DEFAULT_HWC_DISPLAY_ID; | 
 |         int32_t mWidth = DEFAULT_WIDTH; | 
 |         int32_t mHeight = DEFAULT_HEIGHT; | 
 |         int32_t mVsyncPeriod = DEFAULT_VSYNC_PERIOD; | 
 |         int32_t mDpiX = DEFAULT_DPI; | 
 |         int32_t mDpiY = DEFAULT_DPI; | 
 |         int32_t mConfigGroup = DEFAULT_CONFIG_GROUP; | 
 |         hal::HWConfigId mActiveConfig = DEFAULT_ACTIVE_CONFIG; | 
 |         hal::PowerMode mPowerMode = DEFAULT_POWER_MODE; | 
 |         const std::unordered_set<hal::Capability>* mCapabilities = nullptr; | 
 |     }; | 
 |  | 
 |     class FakeDisplayDeviceInjector { | 
 |     public: | 
 |         FakeDisplayDeviceInjector(TestableSurfaceFlinger& flinger, | 
 |                                   std::shared_ptr<compositionengine::Display> compositionDisplay, | 
 |                                   std::optional<ui::DisplayConnectionType> connectionType, | 
 |                                   std::optional<hal::HWDisplayId> hwcDisplayId, bool isPrimary) | 
 |               : mFlinger(flinger), | 
 |                 mCreationArgs(flinger.mFlinger.get(), flinger.mFlinger->getHwComposer(), | 
 |                               mDisplayToken, compositionDisplay), | 
 |                 mHwcDisplayId(hwcDisplayId) { | 
 |             mCreationArgs.connectionType = connectionType; | 
 |             mCreationArgs.isPrimary = isPrimary; | 
 |  | 
 |             mActiveModeId = DisplayModeId(0); | 
 |             DisplayModePtr activeMode = | 
 |                     DisplayMode::Builder(FakeHwcDisplayInjector::DEFAULT_ACTIVE_CONFIG) | 
 |                             .setId(mActiveModeId) | 
 |                             .setPhysicalDisplayId(PhysicalDisplayId(0)) | 
 |                             .setWidth(FakeHwcDisplayInjector::DEFAULT_WIDTH) | 
 |                             .setHeight(FakeHwcDisplayInjector::DEFAULT_HEIGHT) | 
 |                             .setVsyncPeriod(FakeHwcDisplayInjector::DEFAULT_VSYNC_PERIOD) | 
 |                             .setDpiX(FakeHwcDisplayInjector::DEFAULT_DPI) | 
 |                             .setDpiY(FakeHwcDisplayInjector::DEFAULT_DPI) | 
 |                             .setGroup(0) | 
 |                             .build(); | 
 |  | 
 |             DisplayModes modes{activeMode}; | 
 |             mCreationArgs.supportedModes = modes; | 
 |             mCreationArgs.refreshRateConfigs = flinger.mRefreshRateConfigs; | 
 |         } | 
 |  | 
 |         sp<IBinder> token() const { return mDisplayToken; } | 
 |  | 
 |         DisplayDeviceState& mutableDrawingDisplayState() { | 
 |             return mFlinger.mutableDrawingState().displays.editValueFor(mDisplayToken); | 
 |         } | 
 |  | 
 |         DisplayDeviceState& mutableCurrentDisplayState() { | 
 |             return mFlinger.mutableCurrentState().displays.editValueFor(mDisplayToken); | 
 |         } | 
 |  | 
 |         const auto& getDrawingDisplayState() { | 
 |             return mFlinger.mutableDrawingState().displays.valueFor(mDisplayToken); | 
 |         } | 
 |  | 
 |         const auto& getCurrentDisplayState() { | 
 |             return mFlinger.mutableCurrentState().displays.valueFor(mDisplayToken); | 
 |         } | 
 |  | 
 |         auto& mutableDisplayDevice() { return mFlinger.mutableDisplays()[mDisplayToken]; } | 
 |  | 
 |         auto& setActiveMode(DisplayModeId mode) { | 
 |             mActiveModeId = mode; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setSupportedModes(DisplayModes mode) { | 
 |             mCreationArgs.supportedModes = mode; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setNativeWindow(const sp<ANativeWindow>& nativeWindow) { | 
 |             mCreationArgs.nativeWindow = nativeWindow; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setDisplaySurface(const sp<compositionengine::DisplaySurface>& displaySurface) { | 
 |             mCreationArgs.displaySurface = displaySurface; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setSecure(bool secure) { | 
 |             mCreationArgs.isSecure = secure; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setPowerMode(hal::PowerMode mode) { | 
 |             mCreationArgs.initialPowerMode = mode; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setHwcColorModes( | 
 |                 const std::unordered_map<ui::ColorMode, std::vector<ui::RenderIntent>> | 
 |                         hwcColorModes) { | 
 |             mCreationArgs.hwcColorModes = hwcColorModes; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setHasWideColorGamut(bool hasWideColorGamut) { | 
 |             mCreationArgs.hasWideColorGamut = hasWideColorGamut; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         auto& setPhysicalOrientation(ui::Rotation orientation) { | 
 |             mCreationArgs.physicalOrientation = orientation; | 
 |             return *this; | 
 |         } | 
 |  | 
 |         sp<DisplayDevice> inject() NO_THREAD_SAFETY_ANALYSIS { | 
 |             const auto displayId = mCreationArgs.compositionDisplay->getDisplayId(); | 
 |  | 
 |             DisplayDeviceState state; | 
 |             if (const auto type = mCreationArgs.connectionType) { | 
 |                 LOG_ALWAYS_FATAL_IF(!displayId); | 
 |                 const auto physicalId = PhysicalDisplayId::tryCast(*displayId); | 
 |                 LOG_ALWAYS_FATAL_IF(!physicalId); | 
 |                 LOG_ALWAYS_FATAL_IF(!mHwcDisplayId); | 
 |                 state.physical = {.id = *physicalId, .type = *type, .hwcDisplayId = *mHwcDisplayId}; | 
 |             } | 
 |  | 
 |             state.isSecure = mCreationArgs.isSecure; | 
 |  | 
 |             sp<DisplayDevice> device = new DisplayDevice(mCreationArgs); | 
 |             if (!device->isVirtual()) { | 
 |                 device->setActiveMode(mActiveModeId); | 
 |             } | 
 |             mFlinger.mutableDisplays().emplace(mDisplayToken, device); | 
 |             mFlinger.mutableCurrentState().displays.add(mDisplayToken, state); | 
 |             mFlinger.mutableDrawingState().displays.add(mDisplayToken, state); | 
 |  | 
 |             if (const auto& physical = state.physical) { | 
 |                 mFlinger.mutablePhysicalDisplayTokens()[physical->id] = mDisplayToken; | 
 |             } | 
 |  | 
 |             return device; | 
 |         } | 
 |  | 
 |     private: | 
 |         TestableSurfaceFlinger& mFlinger; | 
 |         sp<BBinder> mDisplayToken = new BBinder(); | 
 |         DisplayDeviceCreationArgs mCreationArgs; | 
 |         const std::optional<hal::HWDisplayId> mHwcDisplayId; | 
 |         DisplayModeId mActiveModeId; | 
 |     }; | 
 |  | 
 | private: | 
 |     void setVsyncEnabled(bool) override {} | 
 |     void changeRefreshRate(const Scheduler::RefreshRate&, Scheduler::ModeEvent) override {} | 
 |     void repaintEverythingForHWC() override {} | 
 |     void kernelTimerChanged(bool) override {} | 
 |     void triggerOnFrameRateOverridesChanged() {} | 
 |  | 
 |     surfaceflinger::test::Factory mFactory; | 
 |     sp<SurfaceFlinger> mFlinger = new SurfaceFlinger(mFactory, SurfaceFlinger::SkipInitialization); | 
 |     TestableScheduler* mScheduler = nullptr; | 
 |     std::shared_ptr<scheduler::RefreshRateConfigs> mRefreshRateConfigs; | 
 | }; | 
 |  | 
 | } // namespace android |