SurfaceFlinger.h revision 515dc9c538b8206b746eeb4906ac0b8aed1fb497 
1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_SURFACE_FLINGER_H
18#define ANDROID_SURFACE_FLINGER_H
19
20#include <memory>
21#include <stdint.h>
22#include <sys/types.h>
23
24#include <EGL/egl.h>
25
26/*
27 * NOTE: Make sure this file doesn't include  anything from <gl/ > or <gl2/ >
28 */
29
30#include <cutils/compiler.h>
31
32#include <utils/Atomic.h>
33#include <utils/Errors.h>
34#include <utils/KeyedVector.h>
35#include <utils/RefBase.h>
36#include <utils/SortedVector.h>
37#include <utils/threads.h>
38
39#include <ui/FenceTime.h>
40#include <ui/PixelFormat.h>
41#include <math/mat4.h>
42
43#include <gui/FrameTimestamps.h>
44#include <gui/ISurfaceComposer.h>
45#include <gui/ISurfaceComposerClient.h>
46#include <gui/OccupancyTracker.h>
47
48#include <hardware/hwcomposer_defs.h>
49
50#include <system/graphics.h>
51
52#include <private/gui/LayerState.h>
53
54#include "Barrier.h"
55#include "DisplayDevice.h"
56#include "DispSync.h"
57#include "FrameTracker.h"
58#include "LayerVector.h"
59#include "MessageQueue.h"
60#include "SurfaceInterceptor.h"
61#include "StartBootAnimThread.h"
62
63#include "DisplayHardware/HWComposer.h"
64#include "Effects/Daltonizer.h"
65
66#include <map>
67#include <mutex>
68#include <queue>
69#include <string>
70#include <utility>
71
72namespace android {
73
74// ---------------------------------------------------------------------------
75
76class Client;
77class DisplayEventConnection;
78class EventThread;
79class Layer;
80class LayerDim;
81class Surface;
82class RenderEngine;
83class EventControlThread;
84class VSyncSource;
85class InjectVSyncSource;
86
87namespace dvr {
88class VrFlinger;
89} // namespace dvr
90
91// ---------------------------------------------------------------------------
92
93enum {
94    eTransactionNeeded        = 0x01,
95    eTraversalNeeded          = 0x02,
96    eDisplayTransactionNeeded = 0x04,
97    eTransactionMask          = 0x07
98};
99
100class SurfaceFlinger : public BnSurfaceComposer,
101                       private IBinder::DeathRecipient,
102                       private HWComposer::EventHandler
103{
104public:
105
106    // This is the phase offset in nanoseconds of the software vsync event
107    // relative to the vsync event reported by HWComposer.  The software vsync
108    // event is when SurfaceFlinger and Choreographer-based applications run each
109    // frame.
110    //
111    // This phase offset allows adjustment of the minimum latency from application
112    // wake-up time (by Choreographer) to the time at which the resulting window
113    // image is displayed.  This value may be either positive (after the HW vsync)
114    // or negative (before the HW vsync). Setting it to 0 will result in a lower
115    // latency bound of two vsync periods because the app and SurfaceFlinger
116    // will run just after the HW vsync.  Setting it to a positive number will
117    // result in the minimum latency being:
118    //
119    //     (2 * VSYNC_PERIOD - (vsyncPhaseOffsetNs % VSYNC_PERIOD))
120    //
121    // Note that reducing this latency makes it more likely for the applications
122    // to not have their window content image ready in time.  When this happens
123    // the latency will end up being an additional vsync period, and animations
124    // will hiccup.  Therefore, this latency should be tuned somewhat
125    // conservatively (or at least with awareness of the trade-off being made).
126    static int64_t vsyncPhaseOffsetNs;
127    static int64_t sfVsyncPhaseOffsetNs;
128
129    // If fences from sync Framework are supported.
130    static bool hasSyncFramework;
131
132    // Instruct the Render Engine to use EGL_IMG_context_priority is available.
133    static bool useContextPriority;
134
135    // The offset in nanoseconds to use when DispSync timestamps present fence
136    // signaling time.
137    static int64_t dispSyncPresentTimeOffset;
138
139    // Some hardware can do RGB->YUV conversion more efficiently in hardware
140    // controlled by HWC than in hardware controlled by the video encoder.
141    // This instruct VirtualDisplaySurface to use HWC for such conversion on
142    // GL composition.
143    static bool useHwcForRgbToYuv;
144
145    // Maximum dimension supported by HWC for virtual display.
146    // Equal to min(max_height, max_width).
147    static uint64_t maxVirtualDisplaySize;
148
149    // Controls the number of buffers SurfaceFlinger will allocate for use in
150    // FramebufferSurface
151    static int64_t maxFrameBufferAcquiredBuffers;
152
153    // Indicate if platform supports color management on its
154    // wide-color display. This is typically found on devices
155    // with wide gamut (e.g. Display-P3) display.
156    // This also allows devices with wide-color displays that don't
157    // want to support color management to disable color management.
158    static bool hasWideColorDisplay;
159
160    static char const* getServiceName() ANDROID_API {
161        return "SurfaceFlinger";
162    }
163
164    SurfaceFlinger() ANDROID_API;
165
166    // must be called before clients can connect
167    void init() ANDROID_API;
168
169    // starts SurfaceFlinger main loop in the current thread
170    void run() ANDROID_API;
171
172    enum {
173        EVENT_VSYNC = HWC_EVENT_VSYNC
174    };
175
176    // post an asynchronous message to the main thread
177    status_t postMessageAsync(const sp<MessageBase>& msg, nsecs_t reltime = 0, uint32_t flags = 0);
178
179    // post a synchronous message to the main thread
180    status_t postMessageSync(const sp<MessageBase>& msg, nsecs_t reltime = 0, uint32_t flags = 0);
181
182    // force full composition on all displays
183    void repaintEverything();
184
185    // returns the default Display
186    sp<const DisplayDevice> getDefaultDisplayDevice() const {
187        Mutex::Autolock _l(mStateLock);
188        return getDefaultDisplayDeviceLocked();
189    }
190
191    // utility function to delete a texture on the main thread
192    void deleteTextureAsync(uint32_t texture);
193
194    // enable/disable h/w composer event
195    // TODO: this should be made accessible only to EventThread
196#ifdef USE_HWC2
197    void setVsyncEnabled(int disp, int enabled);
198#else
199    void eventControl(int disp, int event, int enabled);
200#endif
201
202    // called on the main thread by MessageQueue when an internal message
203    // is received
204    // TODO: this should be made accessible only to MessageQueue
205    void onMessageReceived(int32_t what);
206
207    // for debugging only
208    // TODO: this should be made accessible only to HWComposer
209    const Vector< sp<Layer> >& getLayerSortedByZForHwcDisplay(int id);
210
211    RenderEngine& getRenderEngine() const {
212        return *mRenderEngine;
213    }
214
215    bool authenticateSurfaceTextureLocked(
216        const sp<IGraphicBufferProducer>& bufferProducer) const;
217
218private:
219    friend class Client;
220    friend class DisplayEventConnection;
221    friend class EventThread;
222    friend class Layer;
223    friend class MonitoredProducer;
224
225    // This value is specified in number of frames.  Log frame stats at most
226    // every half hour.
227    enum { LOG_FRAME_STATS_PERIOD =  30*60*60 };
228
229    static const size_t MAX_LAYERS = 4096;
230    static constexpr const char* kTimestampProperty = "service.sf.present_timestamp";
231
232    // We're reference counted, never destroy SurfaceFlinger directly
233    virtual ~SurfaceFlinger();
234
235    /* ------------------------------------------------------------------------
236     * Internal data structures
237     */
238
239    class State {
240    public:
241        explicit State(LayerVector::StateSet set) : stateSet(set) {}
242        State& operator=(const State& other) {
243            // We explicitly don't copy stateSet so that, e.g., mDrawingState
244            // always uses the Drawing StateSet.
245            layersSortedByZ = other.layersSortedByZ;
246            displays = other.displays;
247            return *this;
248        }
249
250        const LayerVector::StateSet stateSet = LayerVector::StateSet::Invalid;
251        LayerVector layersSortedByZ;
252        DefaultKeyedVector< wp<IBinder>, DisplayDeviceState> displays;
253
254        void traverseInZOrder(const LayerVector::Visitor& visitor) const;
255        void traverseInReverseZOrder(const LayerVector::Visitor& visitor) const;
256    };
257
258    /* ------------------------------------------------------------------------
259     * IBinder interface
260     */
261    virtual status_t onTransact(uint32_t code, const Parcel& data,
262        Parcel* reply, uint32_t flags);
263    virtual status_t dump(int fd, const Vector<String16>& args);
264
265    /* ------------------------------------------------------------------------
266     * ISurfaceComposer interface
267     */
268    virtual sp<ISurfaceComposerClient> createConnection();
269    virtual sp<ISurfaceComposerClient> createScopedConnection(const sp<IGraphicBufferProducer>& gbp);
270    virtual sp<IBinder> createDisplay(const String8& displayName, bool secure);
271    virtual void destroyDisplay(const sp<IBinder>& display);
272    virtual sp<IBinder> getBuiltInDisplay(int32_t id);
273    virtual void setTransactionState(const Vector<ComposerState>& state,
274            const Vector<DisplayState>& displays, uint32_t flags);
275    virtual void bootFinished();
276    virtual bool authenticateSurfaceTexture(
277        const sp<IGraphicBufferProducer>& bufferProducer) const;
278    virtual status_t getSupportedFrameTimestamps(
279            std::vector<FrameEvent>* outSupported) const;
280    virtual sp<IDisplayEventConnection> createDisplayEventConnection(
281            ISurfaceComposer::VsyncSource vsyncSource = eVsyncSourceApp);
282    virtual status_t captureScreen(const sp<IBinder>& display,
283            const sp<IGraphicBufferProducer>& producer,
284            Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
285            int32_t minLayerZ, int32_t maxLayerZ,
286            bool useIdentityTransform, ISurfaceComposer::Rotation rotation);
287    virtual status_t getDisplayStats(const sp<IBinder>& display,
288            DisplayStatInfo* stats);
289    virtual status_t getDisplayConfigs(const sp<IBinder>& display,
290            Vector<DisplayInfo>* configs);
291    virtual int getActiveConfig(const sp<IBinder>& display);
292    virtual status_t getDisplayColorModes(const sp<IBinder>& display,
293            Vector<android_color_mode_t>* configs);
294    virtual android_color_mode_t getActiveColorMode(const sp<IBinder>& display);
295    virtual status_t setActiveColorMode(const sp<IBinder>& display, android_color_mode_t colorMode);
296    virtual void setPowerMode(const sp<IBinder>& display, int mode);
297    virtual status_t setActiveConfig(const sp<IBinder>& display, int id);
298    virtual status_t clearAnimationFrameStats();
299    virtual status_t getAnimationFrameStats(FrameStats* outStats) const;
300    virtual status_t getHdrCapabilities(const sp<IBinder>& display,
301            HdrCapabilities* outCapabilities) const;
302    virtual status_t enableVSyncInjections(bool enable);
303    virtual status_t injectVSync(nsecs_t when);
304
305
306    /* ------------------------------------------------------------------------
307     * DeathRecipient interface
308     */
309    virtual void binderDied(const wp<IBinder>& who);
310
311    /* ------------------------------------------------------------------------
312     * RefBase interface
313     */
314    virtual void onFirstRef();
315
316    /* ------------------------------------------------------------------------
317     * HWComposer::EventHandler interface
318     */
319    virtual void onVSyncReceived(HWComposer* composer, int type, nsecs_t timestamp);
320    virtual void onHotplugReceived(HWComposer* composer, int disp, bool connected);
321    virtual void onInvalidateReceived(HWComposer* composer);
322
323    /* ------------------------------------------------------------------------
324     * Message handling
325     */
326    void waitForEvent();
327    void signalTransaction();
328    void signalLayerUpdate();
329    void signalRefresh();
330
331    // called on the main thread in response to initializeDisplays()
332    void onInitializeDisplays();
333    // called on the main thread in response to setActiveConfig()
334    void setActiveConfigInternal(const sp<DisplayDevice>& hw, int mode);
335    // called on the main thread in response to setPowerMode()
336    void setPowerModeInternal(const sp<DisplayDevice>& hw, int mode);
337
338    // Called on the main thread in response to setActiveColorMode()
339    void setActiveColorModeInternal(const sp<DisplayDevice>& hw, android_color_mode_t colorMode);
340
341    // Returns whether the transaction actually modified any state
342    bool handleMessageTransaction();
343
344    // Returns whether a new buffer has been latched (see handlePageFlip())
345    bool handleMessageInvalidate();
346
347    void handleMessageRefresh();
348
349    void handleTransaction(uint32_t transactionFlags);
350    void handleTransactionLocked(uint32_t transactionFlags);
351
352    void updateCursorAsync();
353
354    /* handlePageFlip - latch a new buffer if available and compute the dirty
355     * region. Returns whether a new buffer has been latched, i.e., whether it
356     * is necessary to perform a refresh during this vsync.
357     */
358    bool handlePageFlip();
359
360    /* ------------------------------------------------------------------------
361     * Transactions
362     */
363    uint32_t getTransactionFlags(uint32_t flags);
364    uint32_t peekTransactionFlags();
365    uint32_t setTransactionFlags(uint32_t flags);
366    void commitTransaction();
367    uint32_t setClientStateLocked(const sp<Client>& client, const layer_state_t& s);
368    uint32_t setDisplayStateLocked(const DisplayState& s);
369
370    /* ------------------------------------------------------------------------
371     * Layer management
372     */
373    status_t createLayer(const String8& name, const sp<Client>& client,
374            uint32_t w, uint32_t h, PixelFormat format, uint32_t flags,
375            uint32_t windowType, uint32_t ownerUid, sp<IBinder>* handle,
376            sp<IGraphicBufferProducer>* gbp, sp<Layer>* parent);
377
378    status_t createNormalLayer(const sp<Client>& client, const String8& name,
379            uint32_t w, uint32_t h, uint32_t flags, PixelFormat& format,
380            sp<IBinder>* outHandle, sp<IGraphicBufferProducer>* outGbp,
381            sp<Layer>* outLayer);
382
383    status_t createDimLayer(const sp<Client>& client, const String8& name,
384            uint32_t w, uint32_t h, uint32_t flags, sp<IBinder>* outHandle,
385            sp<IGraphicBufferProducer>* outGbp, sp<Layer>* outLayer);
386
387    String8 getUniqueLayerName(const String8& name);
388
389    // called in response to the window-manager calling
390    // ISurfaceComposerClient::destroySurface()
391    status_t onLayerRemoved(const sp<Client>& client, const sp<IBinder>& handle);
392
393    // called when all clients have released all their references to
394    // this layer meaning it is entirely safe to destroy all
395    // resources associated to this layer.
396    status_t onLayerDestroyed(const wp<Layer>& layer);
397
398    // remove a layer from SurfaceFlinger immediately
399    status_t removeLayer(const sp<Layer>& layer, bool topLevelOnly = false);
400
401    // add a layer to SurfaceFlinger
402    status_t addClientLayer(const sp<Client>& client,
403            const sp<IBinder>& handle,
404            const sp<IGraphicBufferProducer>& gbc,
405            const sp<Layer>& lbc,
406            const sp<Layer>& parent);
407
408    /* ------------------------------------------------------------------------
409     * Boot animation, on/off animations and screen capture
410     */
411
412    void startBootAnim();
413
414    void renderScreenImplLocked(
415            const sp<const DisplayDevice>& hw,
416            Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
417            int32_t minLayerZ, int32_t maxLayerZ,
418            bool yswap, bool useIdentityTransform, Transform::orientation_flags rotation);
419
420    status_t captureScreenImplLocked(
421            const sp<const DisplayDevice>& hw,
422            const sp<IGraphicBufferProducer>& producer,
423            Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
424            int32_t minLayerZ, int32_t maxLayerZ,
425            bool useIdentityTransform, Transform::orientation_flags rotation,
426            bool isLocalScreenshot);
427
428    sp<StartBootAnimThread> mStartBootAnimThread = nullptr;
429
430    /* ------------------------------------------------------------------------
431     * EGL
432     */
433    size_t getMaxTextureSize() const;
434    size_t getMaxViewportDims() const;
435
436    /* ------------------------------------------------------------------------
437     * Display and layer stack management
438     */
439    // called when starting, or restarting after system_server death
440    void initializeDisplays();
441
442    // Create an IBinder for a builtin display and add it to current state
443    void createBuiltinDisplayLocked(DisplayDevice::DisplayType type);
444
445
446    sp<const DisplayDevice> getDisplayDevice(const wp<IBinder>& dpy) const {
447      Mutex::Autolock _l(mStateLock);
448      return getDisplayDeviceLocked(dpy);
449    }
450
451    sp<DisplayDevice> getDisplayDevice(const wp<IBinder>& dpy) {
452      Mutex::Autolock _l(mStateLock);
453      return getDisplayDeviceLocked(dpy);
454    }
455
456    // NOTE: can only be called from the main thread or with mStateLock held
457    sp<const DisplayDevice> getDisplayDeviceLocked(const wp<IBinder>& dpy) const {
458        return mDisplays.valueFor(dpy);
459    }
460
461    // NOTE: can only be called from the main thread or with mStateLock held
462    sp<DisplayDevice> getDisplayDeviceLocked(const wp<IBinder>& dpy) {
463        return mDisplays.valueFor(dpy);
464    }
465
466    sp<const DisplayDevice> getDefaultDisplayDeviceLocked() const {
467        return getDisplayDeviceLocked(mBuiltinDisplays[DisplayDevice::DISPLAY_PRIMARY]);
468    }
469
470    void createDefaultDisplayDevice();
471
472    int32_t getDisplayType(const sp<IBinder>& display) {
473        if (!display.get()) return NAME_NOT_FOUND;
474        for (int i = 0; i < DisplayDevice::NUM_BUILTIN_DISPLAY_TYPES; ++i) {
475            if (display == mBuiltinDisplays[i]) {
476                return i;
477            }
478        }
479        return NAME_NOT_FOUND;
480    }
481
482    // mark a region of a layer stack dirty. this updates the dirty
483    // region of all screens presenting this layer stack.
484    void invalidateLayerStack(uint32_t layerStack, const Region& dirty);
485
486#ifndef USE_HWC2
487    int32_t allocateHwcDisplayId(DisplayDevice::DisplayType type);
488#endif
489
490    /* ------------------------------------------------------------------------
491     * H/W composer
492     */
493
494    HWComposer& getHwComposer() const { return *mHwc; }
495
496    /* ------------------------------------------------------------------------
497     * Compositing
498     */
499    void invalidateHwcGeometry();
500    void computeVisibleRegions(uint32_t layerStack,
501            Region& dirtyRegion, Region& opaqueRegion);
502
503    void preComposition(nsecs_t refreshStartTime);
504    void postComposition(nsecs_t refreshStartTime);
505    void updateCompositorTiming(
506            nsecs_t vsyncPhase, nsecs_t vsyncInterval, nsecs_t compositeTime,
507            std::shared_ptr<FenceTime>& presentFenceTime);
508    void setCompositorTimingSnapped(
509            nsecs_t vsyncPhase, nsecs_t vsyncInterval,
510            nsecs_t compositeToPresentLatency);
511    void rebuildLayerStacks();
512
513    // Given a dataSpace, returns the appropriate color_mode to use
514    // to display that dataSpace.
515    android_color_mode pickColorMode(android_dataspace dataSpace);
516    android_dataspace bestTargetDataSpace(android_dataspace a, android_dataspace b);
517
518    void setUpHWComposer();
519    void doComposition();
520    void doDebugFlashRegions();
521    void doDisplayComposition(const sp<const DisplayDevice>& displayDevice, const Region& dirtyRegion);
522
523    // compose surfaces for display hw. this fails if using GL and the surface
524    // has been destroyed and is no longer valid.
525    bool doComposeSurfaces(const sp<const DisplayDevice>& displayDevice, const Region& dirty);
526
527    void postFramebuffer();
528    void drawWormhole(const sp<const DisplayDevice>& displayDevice, const Region& region) const;
529
530    /* ------------------------------------------------------------------------
531     * Display management
532     */
533
534    /* ------------------------------------------------------------------------
535     * VSync
536     */
537    void enableHardwareVsync();
538    void resyncToHardwareVsync(bool makeAvailable);
539    void disableHardwareVsync(bool makeUnavailable);
540
541public:
542    void resyncWithRateLimit();
543    void getCompositorTiming(CompositorTiming* compositorTiming);
544private:
545
546    /* ------------------------------------------------------------------------
547     * Debugging & dumpsys
548     */
549    void listLayersLocked(const Vector<String16>& args, size_t& index, String8& result) const;
550    void dumpStatsLocked(const Vector<String16>& args, size_t& index, String8& result) const;
551    void clearStatsLocked(const Vector<String16>& args, size_t& index, String8& result);
552    void dumpAllLocked(const Vector<String16>& args, size_t& index, String8& result) const;
553    bool startDdmConnection();
554    void appendSfConfigString(String8& result) const;
555    void checkScreenshot(size_t w, size_t s, size_t h, void const* vaddr,
556            const sp<const DisplayDevice>& hw,
557            int32_t minLayerZ, int32_t maxLayerZ);
558
559    void logFrameStats();
560
561    void dumpStaticScreenStats(String8& result) const;
562    // Not const because each Layer needs to query Fences and cache timestamps.
563    void dumpFrameEventsLocked(String8& result);
564
565    void recordBufferingStats(const char* layerName,
566            std::vector<OccupancyTracker::Segment>&& history);
567    void dumpBufferingStats(String8& result) const;
568    void dumpWideColorInfo(String8& result) const;
569
570    bool isLayerTripleBufferingDisabled() const {
571        return this->mLayerTripleBufferingDisabled;
572    }
573
574#ifdef USE_HWC2
575    /* ------------------------------------------------------------------------
576     * VrFlinger
577     */
578    void clearHwcLayers(const LayerVector& layers);
579    void resetHwcLocked();
580
581    // Check to see if we should handoff to vr flinger.
582    void updateVrFlinger();
583#endif
584
585    /* ------------------------------------------------------------------------
586     * Attributes
587     */
588
589    // access must be protected by mStateLock
590    mutable Mutex mStateLock;
591    State mCurrentState{LayerVector::StateSet::Current};
592    volatile int32_t mTransactionFlags;
593    Condition mTransactionCV;
594    bool mTransactionPending;
595    bool mAnimTransactionPending;
596    SortedVector< sp<Layer> > mLayersPendingRemoval;
597    SortedVector< wp<IBinder> > mGraphicBufferProducerList;
598
599    // protected by mStateLock (but we could use another lock)
600    bool mLayersRemoved;
601    bool mLayersAdded;
602
603    // access must be protected by mInvalidateLock
604    volatile int32_t mRepaintEverything;
605
606    // current, real and vr hardware composers.
607    HWComposer* mHwc;
608#ifdef USE_HWC2
609    HWComposer* mRealHwc;
610    HWComposer* mVrHwc;
611#endif
612    // constant members (no synchronization needed for access)
613    RenderEngine* mRenderEngine;
614    nsecs_t mBootTime;
615    bool mGpuToCpuSupported;
616    sp<EventThread> mEventThread;
617    sp<EventThread> mSFEventThread;
618    sp<EventThread> mInjectorEventThread;
619    sp<InjectVSyncSource> mVSyncInjector;
620    sp<EventControlThread> mEventControlThread;
621    EGLContext mEGLContext;
622    EGLDisplay mEGLDisplay;
623    sp<IBinder> mBuiltinDisplays[DisplayDevice::NUM_BUILTIN_DISPLAY_TYPES];
624
625#ifdef USE_HWC2
626    std::unique_ptr<dvr::VrFlinger> mVrFlinger;
627#endif
628
629    // Can only accessed from the main thread, these members
630    // don't need synchronization
631    State mDrawingState{LayerVector::StateSet::Drawing};
632    bool mVisibleRegionsDirty;
633#ifndef USE_HWC2
634    bool mHwWorkListDirty;
635#else
636    bool mGeometryInvalid;
637#endif
638    bool mAnimCompositionPending;
639#ifdef USE_HWC2
640    std::vector<sp<Layer>> mLayersWithQueuedFrames;
641    sp<Fence> mPreviousPresentFence = Fence::NO_FENCE;
642    bool mHadClientComposition = false;
643#endif
644    FenceTimeline mGlCompositionDoneTimeline;
645    FenceTimeline mDisplayTimeline;
646
647    // this may only be written from the main thread with mStateLock held
648    // it may be read from other threads with mStateLock held
649    DefaultKeyedVector< wp<IBinder>, sp<DisplayDevice> > mDisplays;
650
651    // don't use a lock for these, we don't care
652    int mDebugRegion;
653    int mDebugDDMS;
654    int mDebugDisableHWC;
655    int mDebugDisableTransformHint;
656    volatile nsecs_t mDebugInSwapBuffers;
657    nsecs_t mLastSwapBufferTime;
658    volatile nsecs_t mDebugInTransaction;
659    nsecs_t mLastTransactionTime;
660    bool mBootFinished;
661    bool mForceFullDamage;
662#ifdef USE_HWC2
663    bool mPropagateBackpressure = true;
664#endif
665    SurfaceInterceptor mInterceptor;
666    bool mUseHwcVirtualDisplays = false;
667
668    // Restrict layers to use two buffers in their bufferqueues.
669    bool mLayerTripleBufferingDisabled = false;
670
671    // these are thread safe
672    mutable MessageQueue mEventQueue;
673    FrameTracker mAnimFrameTracker;
674    DispSync mPrimaryDispSync;
675
676    // protected by mDestroyedLayerLock;
677    mutable Mutex mDestroyedLayerLock;
678    Vector<Layer const *> mDestroyedLayers;
679
680    // protected by mHWVsyncLock
681    Mutex mHWVsyncLock;
682    bool mPrimaryHWVsyncEnabled;
683    bool mHWVsyncAvailable;
684
685    // protected by mCompositorTimingLock;
686    mutable std::mutex mCompositorTimingLock;
687    CompositorTiming mCompositorTiming;
688
689    // Only accessed from the main thread.
690    struct CompositePresentTime {
691        nsecs_t composite { -1 };
692        std::shared_ptr<FenceTime> display { FenceTime::NO_FENCE };
693    };
694    std::queue<CompositePresentTime> mCompositePresentTimes;
695
696    /* ------------------------------------------------------------------------
697     * Feature prototyping
698     */
699
700    bool mInjectVSyncs;
701
702    Daltonizer mDaltonizer;
703#ifndef USE_HWC2
704    bool mDaltonize;
705#endif
706
707    mat4 mPreviousColorMatrix;
708    mat4 mColorMatrix;
709    bool mHasColorMatrix;
710
711    // Static screen stats
712    bool mHasPoweredOff;
713    static const size_t NUM_BUCKETS = 8; // < 1-7, 7+
714    nsecs_t mFrameBuckets[NUM_BUCKETS];
715    nsecs_t mTotalTime;
716    std::atomic<nsecs_t> mLastSwapTime;
717
718    size_t mNumLayers;
719
720    // Double- vs. triple-buffering stats
721    struct BufferingStats {
722        BufferingStats()
723          : numSegments(0),
724            totalTime(0),
725            twoBufferTime(0),
726            doubleBufferedTime(0),
727            tripleBufferedTime(0) {}
728
729        size_t numSegments;
730        nsecs_t totalTime;
731
732        // "Two buffer" means that a third buffer was never used, whereas
733        // "double-buffered" means that on average the segment only used two
734        // buffers (though it may have used a third for some part of the
735        // segment)
736        nsecs_t twoBufferTime;
737        nsecs_t doubleBufferedTime;
738        nsecs_t tripleBufferedTime;
739    };
740    mutable Mutex mBufferingStatsMutex;
741    std::unordered_map<std::string, BufferingStats> mBufferingStats;
742
743    // Verify that transaction is being called by an approved process:
744    // either AID_GRAPHICS or AID_SYSTEM.
745    status_t CheckTransactCodeCredentials(uint32_t code);
746
747#ifdef USE_HWC2
748    std::atomic<bool> mVrFlingerRequestsDisplay;
749    static bool useVrFlinger;
750#endif
751    };
752}; // namespace android
753
754#endif // ANDROID_SURFACE_FLINGER_H
755