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Commit 15b60b97 authored by Rachel Lee's avatar Rachel Lee Committed by Automerger Merge Worker
Browse files

Merge "Remove JNI per-frame allocations in Choreographer" into udc-dev am: a87cc2a3 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21635422



Change-Id: I22cef170cd5161304e3ad1ae2b5ac46de6c11769
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 50467c8f a87cc2a3

core/java/android/view/DisplayEventReceiver.java

+24 −18
Original line number Diff line number Diff line
@@ -81,7 +81,10 @@ public abstract class DisplayEventReceiver { 
    // GC'd while the native peer of the receiver is using them.

    private MessageQueue mMessageQueue;



    private final VsyncEventData mVsyncEventData = new VsyncEventData();



    private static native long nativeInit(WeakReference<DisplayEventReceiver> receiver,

            WeakReference<VsyncEventData> vsyncEventData,

            MessageQueue messageQueue, int vsyncSource, int eventRegistration, long layerHandle);

    private static native long nativeGetDisplayEventReceiverFinalizer();

    @FastNative
@@ -124,7 +127,9 @@ public abstract class DisplayEventReceiver { 
        }



        mMessageQueue = looper.getQueue();

        mReceiverPtr = nativeInit(new WeakReference<DisplayEventReceiver>(this), mMessageQueue,

        mReceiverPtr = nativeInit(new WeakReference<DisplayEventReceiver>(this),

                new WeakReference<VsyncEventData>(mVsyncEventData),

                mMessageQueue,

                vsyncSource, eventRegistration, layerHandle);

        mFreeNativeResources = sNativeAllocationRegistry.registerNativeAllocation(this,

                mReceiverPtr);
@@ -142,9 +147,6 @@ public abstract class DisplayEventReceiver { 
    }



    static final class VsyncEventData {



        static final FrameTimeline[] INVALID_FRAME_TIMELINES =

                {new FrameTimeline(FrameInfo.INVALID_VSYNC_ID, Long.MAX_VALUE, Long.MAX_VALUE)};

        // The amount of frame timeline choices.

        // Must be in sync with VsyncEventData::kFrameTimelinesLength in

        // frameworks/native/libs/gui/include/gui/VsyncEventData.h. If they do not match, a runtime
@@ -152,6 +154,10 @@ public abstract class DisplayEventReceiver { 
        static final int FRAME_TIMELINES_LENGTH = 7;



        public static class FrameTimeline {

            FrameTimeline() {}



            // Called from native code.

            @SuppressWarnings("unused")

            FrameTimeline(long vsyncId, long expectedPresentationTime, long deadline) {

                this.vsyncId = vsyncId;

                this.expectedPresentationTime = expectedPresentationTime;
@@ -160,14 +166,14 @@ public abstract class DisplayEventReceiver { 


            // The frame timeline vsync id, used to correlate a frame

            // produced by HWUI with the timeline data stored in Surface Flinger.

            public final long vsyncId;

            public long vsyncId = FrameInfo.INVALID_VSYNC_ID;



            // The frame timestamp for when the frame is expected to be presented.

            public final long expectedPresentationTime;

            public long expectedPresentationTime = Long.MAX_VALUE;



            // The frame deadline timestamp in {@link System#nanoTime()} timebase that it is

            // allotted for the frame to be completed.

            public final long deadline;

            public long deadline = Long.MAX_VALUE;

        }



        /**
@@ -175,11 +181,18 @@ public abstract class DisplayEventReceiver { 
         * {@link FrameInfo#VSYNC} to the current vsync in case Choreographer callback was heavily

         * delayed by the app.

         */

        public final long frameInterval;

        public long frameInterval = -1;



        public final FrameTimeline[] frameTimelines;



        public final int preferredFrameTimelineIndex;

        public int preferredFrameTimelineIndex = 0;



        VsyncEventData() {

            frameTimelines = new FrameTimeline[FRAME_TIMELINES_LENGTH];

            for (int i = 0; i < frameTimelines.length; i++) {

                frameTimelines[i] = new FrameTimeline();

            }

        }



        // Called from native code.

        @SuppressWarnings("unused")
@@ -190,12 +203,6 @@ public abstract class DisplayEventReceiver { 
            this.frameInterval = frameInterval;

        }



        VsyncEventData() {

            this.frameInterval = -1;

            this.frameTimelines = INVALID_FRAME_TIMELINES;

            this.preferredFrameTimelineIndex = 0;

        }



        public FrameTimeline preferredFrameTimeline() {

            return frameTimelines[preferredFrameTimelineIndex];

        }
@@ -299,9 +306,8 @@ public abstract class DisplayEventReceiver { 


    // Called from native code.

    @SuppressWarnings("unused")

    private void dispatchVsync(long timestampNanos, long physicalDisplayId, int frame,

            VsyncEventData vsyncEventData) {

        onVsync(timestampNanos, physicalDisplayId, frame, vsyncEventData);

    private void dispatchVsync(long timestampNanos, long physicalDisplayId, int frame) {

        onVsync(timestampNanos, physicalDisplayId, frame, mVsyncEventData);

    }



    // Called from native code.

core/jni/android_view_DisplayEventReceiver.cpp

+73 −11
Original line number Diff line number Diff line
@@ -50,12 +50,22 @@ static struct { 


    struct {

        jclass clazz;



        jmethodID init;



        jfieldID vsyncId;

        jfieldID expectedPresentationTime;

        jfieldID deadline;

    } frameTimelineClassInfo;



    struct {

        jclass clazz;



        jmethodID init;



        jfieldID frameInterval;

        jfieldID preferredFrameTimelineIndex;

        jfieldID frameTimelines;

    } vsyncEventDataClassInfo;



} gDisplayEventReceiverClassInfo;
@@ -63,7 +73,7 @@ static struct { 


class NativeDisplayEventReceiver : public DisplayEventDispatcher {

public:

    NativeDisplayEventReceiver(JNIEnv* env, jobject receiverWeak,

    NativeDisplayEventReceiver(JNIEnv* env, jobject receiverWeak, jobject vsyncEventDataWeak,

                               const sp<MessageQueue>& messageQueue, jint vsyncSource,

                               jint eventRegistration, jlong layerHandle);
@@ -74,6 +84,7 @@ protected: 


private:

    jobject mReceiverWeakGlobal;

    jobject mVsyncEventDataWeakGlobal;

    sp<MessageQueue> mMessageQueue;



    void dispatchVsync(nsecs_t timestamp, PhysicalDisplayId displayId, uint32_t count,
@@ -87,6 +98,7 @@ private: 
};



NativeDisplayEventReceiver::NativeDisplayEventReceiver(JNIEnv* env, jobject receiverWeak,

                                                       jobject vsyncEventDataWeak,

                                                       const sp<MessageQueue>& messageQueue,

                                                       jint vsyncSource, jint eventRegistration,

                                                       jlong layerHandle)
@@ -98,6 +110,7 @@ NativeDisplayEventReceiver::NativeDisplayEventReceiver(JNIEnv* env, jobject rece 
                                                          reinterpret_cast<IBinder*>(layerHandle))

                                                : nullptr),

        mReceiverWeakGlobal(env->NewGlobalRef(receiverWeak)),

        mVsyncEventDataWeakGlobal(env->NewGlobalRef(vsyncEventDataWeak)),

        mMessageQueue(messageQueue) {

    ALOGV("receiver %p ~ Initializing display event receiver.", this);

}
@@ -144,12 +157,39 @@ void NativeDisplayEventReceiver::dispatchVsync(nsecs_t timestamp, PhysicalDispla 
    JNIEnv* env = AndroidRuntime::getJNIEnv();



    ScopedLocalRef<jobject> receiverObj(env, GetReferent(env, mReceiverWeakGlobal));

    if (receiverObj.get()) {

    ScopedLocalRef<jobject> vsyncEventDataObj(env, GetReferent(env, mVsyncEventDataWeakGlobal));

    if (receiverObj.get() && vsyncEventDataObj.get()) {

        ALOGV("receiver %p ~ Invoking vsync handler.", this);



        jobject javaVsyncEventData = createJavaVsyncEventData(env, vsyncEventData);

        env->SetIntField(vsyncEventDataObj.get(),

                         gDisplayEventReceiverClassInfo.vsyncEventDataClassInfo

                                 .preferredFrameTimelineIndex,

                         vsyncEventData.preferredFrameTimelineIndex);

        env->SetLongField(vsyncEventDataObj.get(),

                          gDisplayEventReceiverClassInfo.vsyncEventDataClassInfo.frameInterval,

                          vsyncEventData.frameInterval);



        jobjectArray frameTimelinesObj = reinterpret_cast<jobjectArray>(

                env->GetObjectField(vsyncEventDataObj.get(),

                                    gDisplayEventReceiverClassInfo.vsyncEventDataClassInfo

                                            .frameTimelines));

        for (int i = 0; i < VsyncEventData::kFrameTimelinesLength; i++) {

            VsyncEventData::FrameTimeline& frameTimeline = vsyncEventData.frameTimelines[i];

            jobject frameTimelineObj = env->GetObjectArrayElement(frameTimelinesObj, i);

            env->SetLongField(frameTimelineObj,

                              gDisplayEventReceiverClassInfo.frameTimelineClassInfo.vsyncId,

                              frameTimeline.vsyncId);

            env->SetLongField(frameTimelineObj,

                              gDisplayEventReceiverClassInfo.frameTimelineClassInfo

                                      .expectedPresentationTime,

                              frameTimeline.expectedPresentationTime);

            env->SetLongField(frameTimelineObj,

                              gDisplayEventReceiverClassInfo.frameTimelineClassInfo.deadline,

                              frameTimeline.deadlineTimestamp);

        }



        env->CallVoidMethod(receiverObj.get(), gDisplayEventReceiverClassInfo.dispatchVsync,

                            timestamp, displayId.value, count, javaVsyncEventData);

                            timestamp, displayId.value, count);

        ALOGV("receiver %p ~ Returned from vsync handler.", this);

    }
@@ -217,8 +257,9 @@ void NativeDisplayEventReceiver::dispatchFrameRateOverrides( 
    mMessageQueue->raiseAndClearException(env, "dispatchModeChanged");

}



static jlong nativeInit(JNIEnv* env, jclass clazz, jobject receiverWeak, jobject messageQueueObj,

                        jint vsyncSource, jint eventRegistration, jlong layerHandle) {

static jlong nativeInit(JNIEnv* env, jclass clazz, jobject receiverWeak, jobject vsyncEventDataWeak,

                        jobject messageQueueObj, jint vsyncSource, jint eventRegistration,

                        jlong layerHandle) {

    sp<MessageQueue> messageQueue = android_os_MessageQueue_getMessageQueue(env, messageQueueObj);

    if (messageQueue == NULL) {

        jniThrowRuntimeException(env, "MessageQueue is not initialized.");
@@ -226,8 +267,8 @@ static jlong nativeInit(JNIEnv* env, jclass clazz, jobject receiverWeak, jobject 
    }



    sp<NativeDisplayEventReceiver> receiver =

            new NativeDisplayEventReceiver(env, receiverWeak, messageQueue, vsyncSource,

                                           eventRegistration, layerHandle);

            new NativeDisplayEventReceiver(env, receiverWeak, vsyncEventDataWeak, messageQueue,

                                           vsyncSource, eventRegistration, layerHandle);

    status_t status = receiver->initialize();

    if (status) {

        String8 message;
@@ -274,7 +315,9 @@ static jobject nativeGetLatestVsyncEventData(JNIEnv* env, jclass clazz, jlong re 


static const JNINativeMethod gMethods[] = {

        /* name, signature, funcPtr */

        {"nativeInit", "(Ljava/lang/ref/WeakReference;Landroid/os/MessageQueue;IIJ)J",

        {"nativeInit",

         "(Ljava/lang/ref/WeakReference;Ljava/lang/ref/WeakReference;Landroid/os/"

         "MessageQueue;IIJ)J",

         (void*)nativeInit},

        {"nativeGetDisplayEventReceiverFinalizer", "()J",

         (void*)nativeGetDisplayEventReceiverFinalizer},
@@ -291,8 +334,7 @@ int register_android_view_DisplayEventReceiver(JNIEnv* env) { 
    gDisplayEventReceiverClassInfo.clazz = MakeGlobalRefOrDie(env, clazz);



    gDisplayEventReceiverClassInfo.dispatchVsync =

            GetMethodIDOrDie(env, gDisplayEventReceiverClassInfo.clazz, "dispatchVsync",

                             "(JJILandroid/view/DisplayEventReceiver$VsyncEventData;)V");

            GetMethodIDOrDie(env, gDisplayEventReceiverClassInfo.clazz, "dispatchVsync", "(JJI)V");

    gDisplayEventReceiverClassInfo.dispatchHotplug = GetMethodIDOrDie(env,

            gDisplayEventReceiverClassInfo.clazz, "dispatchHotplug", "(JJZ)V");

    gDisplayEventReceiverClassInfo.dispatchModeChanged =
@@ -318,6 +360,15 @@ int register_android_view_DisplayEventReceiver(JNIEnv* env) { 
    gDisplayEventReceiverClassInfo.frameTimelineClassInfo.init =

            GetMethodIDOrDie(env, gDisplayEventReceiverClassInfo.frameTimelineClassInfo.clazz,

                             "<init>", "(JJJ)V");

    gDisplayEventReceiverClassInfo.frameTimelineClassInfo.vsyncId =

            GetFieldIDOrDie(env, gDisplayEventReceiverClassInfo.frameTimelineClassInfo.clazz,

                            "vsyncId", "J");

    gDisplayEventReceiverClassInfo.frameTimelineClassInfo.expectedPresentationTime =

            GetFieldIDOrDie(env, gDisplayEventReceiverClassInfo.frameTimelineClassInfo.clazz,

                            "expectedPresentationTime", "J");

    gDisplayEventReceiverClassInfo.frameTimelineClassInfo.deadline =

            GetFieldIDOrDie(env, gDisplayEventReceiverClassInfo.frameTimelineClassInfo.clazz,

                            "deadline", "J");



    jclass vsyncEventDataClazz =

            FindClassOrDie(env, "android/view/DisplayEventReceiver$VsyncEventData");
@@ -329,6 +380,17 @@ int register_android_view_DisplayEventReceiver(JNIEnv* env) { 
                             "([Landroid/view/"

                             "DisplayEventReceiver$VsyncEventData$FrameTimeline;IJ)V");



    gDisplayEventReceiverClassInfo.vsyncEventDataClassInfo.preferredFrameTimelineIndex =

            GetFieldIDOrDie(env, gDisplayEventReceiverClassInfo.vsyncEventDataClassInfo.clazz,

                            "preferredFrameTimelineIndex", "I");

    gDisplayEventReceiverClassInfo.vsyncEventDataClassInfo.frameInterval =

            GetFieldIDOrDie(env, gDisplayEventReceiverClassInfo.vsyncEventDataClassInfo.clazz,

                            "frameInterval", "J");

    gDisplayEventReceiverClassInfo.vsyncEventDataClassInfo.frameTimelines =

            GetFieldIDOrDie(env, gDisplayEventReceiverClassInfo.vsyncEventDataClassInfo.clazz,

                            "frameTimelines",

                            "[Landroid/view/DisplayEventReceiver$VsyncEventData$FrameTimeline;");



    return res;

}