/* * Copyright (C) 2007 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. */ #ifndef ANDROID_SURFACE_FLINGER_H #define ANDROID_SURFACE_FLINGER_H #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "Barrier.h" #include "CPUGauge.h" #include "Layer.h" #include "Tokenizer.h" struct copybit_device_t; struct overlay_device_t; namespace android { // --------------------------------------------------------------------------- class Client; class BClient; class DisplayHardware; class FreezeLock; class GPUHardwareInterface; class IGPUCallback; class Layer; class LayerBuffer; class LayerOrientationAnim; class OrientationAnimation; class SurfaceHeapManager; typedef int32_t ClientID; #define LIKELY( exp ) (__builtin_expect( (exp) != 0, true )) #define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false )) // --------------------------------------------------------------------------- class Client { public: Client(ClientID cid, const sp& flinger); ~Client(); int32_t generateId(int pid); void free(int32_t id); status_t bindLayer(LayerBaseClient* layer, int32_t id); sp createAllocator(uint32_t memory_type); inline bool isValid(int32_t i) const; inline const uint8_t* inUseArray() const; inline size_t numActiveLayers() const; LayerBaseClient* getLayerUser(int32_t i) const; const Vector& getLayers() const { return mLayers; } const sp& controlBlockMemory() const { return mCblkMemory; } void dump(const char* what); const sp& getSurfaceHeapManager() const; // pointer to this client's control block per_client_cblk_t* ctrlblk; ClientID cid; private: int getClientPid() const { return mPid; } int mPid; uint32_t mBitmap; SortedVector mInUse; Vector mLayers; sp mCblkHeap; sp mFlinger; sp mSharedHeapAllocator; sp mPMemAllocator; sp mCblkMemory; }; // --------------------------------------------------------------------------- class GraphicPlane { public: static status_t orientationToTransfrom(int orientation, int w, int h, Transform* tr); GraphicPlane(); ~GraphicPlane(); bool initialized() const; void setDisplayHardware(DisplayHardware *); void setTransform(const Transform& tr); status_t setOrientation(int orientation); int getOrientation() const { return mOrientation; } const DisplayHardware& displayHardware() const; const Transform& transform() const; private: GraphicPlane(const GraphicPlane&); GraphicPlane operator = (const GraphicPlane&); DisplayHardware* mHw; Transform mTransform; Transform mOrientationTransform; Transform mGlobalTransform; int mOrientation; }; // --------------------------------------------------------------------------- enum { eTransactionNeeded = 0x01, eTraversalNeeded = 0x02 }; class SurfaceFlinger : public BnSurfaceComposer, protected Thread { public: static void instantiate(); static void shutdown(); SurfaceFlinger(); virtual ~SurfaceFlinger(); void init(); virtual status_t onTransact( uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags); virtual status_t dump(int fd, const Vector& args); // ISurfaceComposer interface virtual sp createConnection(); virtual sp getCblk() const; virtual void bootFinished(); virtual void openGlobalTransaction(); virtual void closeGlobalTransaction(); virtual status_t freezeDisplay(DisplayID dpy, uint32_t flags); virtual status_t unfreezeDisplay(DisplayID dpy, uint32_t flags); virtual int setOrientation(DisplayID dpy, int orientation, uint32_t flags); virtual void signal() const; virtual status_t requestGPU(const sp& callback, gpu_info_t* gpu); virtual status_t revokeGPU(); void screenReleased(DisplayID dpy); void screenAcquired(DisplayID dpy); const sp& getSurfaceHeapManager() const { return mSurfaceHeapManager; } const sp& getGPU() const { return mGPU; } copybit_device_t* getBlitEngine() const; overlay_control_device_t* getOverlayEngine() const; status_t removeLayer(LayerBase* layer); status_t addLayer(LayerBase* layer); status_t invalidateLayerVisibility(LayerBase* layer); private: friend class BClient; friend class LayerBase; friend class LayerBuffer; friend class LayerBaseClient; friend class Layer; friend class LayerBlur; sp createSurface(ClientID client, int pid, ISurfaceFlingerClient::surface_data_t* params, DisplayID display, uint32_t w, uint32_t h, PixelFormat format, uint32_t flags); LayerBaseClient* createNormalSurfaceLocked(Client* client, DisplayID display, int32_t id, uint32_t w, uint32_t h, PixelFormat format, uint32_t flags); LayerBaseClient* createBlurSurfaceLocked(Client* client, DisplayID display, int32_t id, uint32_t w, uint32_t h, uint32_t flags); LayerBaseClient* createDimSurfaceLocked(Client* client, DisplayID display, int32_t id, uint32_t w, uint32_t h, uint32_t flags); LayerBaseClient* createPushBuffersSurfaceLocked(Client* client, DisplayID display, int32_t id, uint32_t w, uint32_t h, uint32_t flags); status_t destroySurface(SurfaceID surface_id); status_t setClientState(ClientID cid, int32_t count, const layer_state_t* states); class LayerVector { public: inline LayerVector() { } LayerVector(const LayerVector&); inline size_t size() const { return layers.size(); } inline LayerBase*const* array() const { return layers.array(); } ssize_t add(LayerBase*, Vector::compar_t); ssize_t remove(LayerBase*); ssize_t reorder(LayerBase*, Vector::compar_t); ssize_t indexOf(LayerBase* key, size_t guess=0) const; inline LayerBase* operator [] (size_t i) const { return layers[i]; } private: KeyedVector lookup; Vector layers; }; struct State { State() { orientation = ISurfaceComposer::eOrientationDefault; freezeDisplay = 0; } LayerVector layersSortedByZ; uint8_t orientation; uint8_t orientationType; uint8_t freezeDisplay; }; class DelayedTransaction : public Thread { friend class SurfaceFlinger; sp mFlinger; nsecs_t mDelay; public: DelayedTransaction(const sp& flinger, nsecs_t delay) : Thread(false), mFlinger(flinger), mDelay(delay) { } virtual bool threadLoop() { usleep(mDelay / 1000); if (android_atomic_and(~1, &mFlinger->mDeplayedTransactionPending) == 1) { mFlinger->signalEvent(); } return false; } }; virtual bool threadLoop(); virtual status_t readyToRun(); virtual void onFirstRef(); const GraphicPlane& graphicPlane(int dpy) const; GraphicPlane& graphicPlane(int dpy); void waitForEvent(); void signalEvent(); void signalDelayedEvent(nsecs_t delay); void handleConsoleEvents(); void handleTransaction(uint32_t transactionFlags); void computeVisibleRegions( LayerVector& currentLayers, Region& dirtyRegion, Region& wormholeRegion); void handlePageFlip(); bool lockPageFlip(const LayerVector& currentLayers); void unlockPageFlip(const LayerVector& currentLayers); void handleRepaint(); void handleDebugCpu(); void scheduleBroadcast(Client* client); void executeScheduledBroadcasts(); void postFramebuffer(); void composeSurfaces(const Region& dirty); void unlockClients(); void destroyConnection(ClientID cid); LayerBaseClient* getLayerUser_l(SurfaceID index) const; status_t addLayer_l(LayerBase* layer); status_t removeLayer_l(LayerBase* layer); void destroy_all_removed_layers_l(); void free_resources_l(); uint32_t getTransactionFlags(uint32_t flags); uint32_t setTransactionFlags(uint32_t flags, nsecs_t delay = 0); void commitTransaction(); friend class FreezeLock; sp getFreezeLock() const; inline void incFreezeCount() { mFreezeCount++; } inline void decFreezeCount() { if (mFreezeCount > 0) mFreezeCount--; } inline bool hasFreezeRequest() const { return mFreezeDisplay; } inline bool isFrozen() const { return mFreezeDisplay || mFreezeCount>0; } void debugFlashRegions(); void debugShowFPS() const; void drawWormhole() const; // access must be protected by mStateLock mutable Mutex mStateLock; State mCurrentState; State mDrawingState; volatile int32_t mTransactionFlags; volatile int32_t mTransactionCount; Condition mTransactionCV; // protected by mStateLock (but we could use another lock) Tokenizer mTokens; DefaultKeyedVector mClientsMap; DefaultKeyedVector mLayerMap; GraphicPlane mGraphicPlanes[1]; SortedVector mRemovedLayers; Vector mDisconnectedClients; // constant members (no synchronization needed for access) sp mServerHeap; sp mServerCblkMemory; surface_flinger_cblk_t* mServerCblk; sp mSurfaceHeapManager; sp mGPU; GLuint mWormholeTexName; nsecs_t mBootTime; // Can only accessed from the main thread, these members // don't need synchronization Region mDirtyRegion; Region mDirtyRegionRemovedLayer; Region mInvalidRegion; Region mWormholeRegion; Client* mLastScheduledBroadcast; SortedVector mScheduledBroadcasts; bool mVisibleRegionsDirty; bool mDeferReleaseConsole; bool mFreezeDisplay; int32_t mFreezeCount; nsecs_t mFreezeDisplayTime; friend class OrientationAnimation; OrientationAnimation* mOrientationAnimation; // access protected by mDebugLock mutable Mutex mDebugLock; sp mCpuGauge; // don't use a lock for these, we don't care int mDebugRegion; int mDebugCpu; int mDebugFps; int mDebugBackground; // these are thread safe mutable Barrier mReadyToRunBarrier; mutable SurfaceFlingerSynchro mSyncObject; volatile int32_t mDeplayedTransactionPending; // atomic variables enum { eConsoleReleased = 1, eConsoleAcquired = 2 }; volatile int32_t mConsoleSignals; // only written in the main thread, only read in other threads volatile int32_t mSecureFrameBuffer; }; // --------------------------------------------------------------------------- class FreezeLock : public LightRefBase { SurfaceFlinger* mFlinger; public: FreezeLock(SurfaceFlinger* flinger) : mFlinger(flinger) { mFlinger->incFreezeCount(); } ~FreezeLock() { mFlinger->decFreezeCount(); } }; // --------------------------------------------------------------------------- class BClient : public BnSurfaceFlingerClient { public: BClient(SurfaceFlinger *flinger, ClientID cid, const sp& cblk); ~BClient(); // ISurfaceFlingerClient interface virtual void getControlBlocks(sp* ctrl) const; virtual sp createSurface( surface_data_t* params, int pid, DisplayID display, uint32_t w, uint32_t h,PixelFormat format, uint32_t flags); virtual status_t destroySurface(SurfaceID surfaceId); virtual status_t setState(int32_t count, const layer_state_t* states); private: ClientID mId; SurfaceFlinger* mFlinger; sp mCblk; }; // --------------------------------------------------------------------------- }; // namespace android #endif // ANDROID_SURFACE_FLINGER_H