Handle display hotplug errors (215e023b) · Commits · e / os / android_frameworks_base

core/java/android/view/DisplayEventReceiver.java

+15 −0

Original line number	Diff line number	Diff line
		@@ -263,6 +263,16 @@ public abstract class DisplayEventReceiver {
		public void onHotplug(long timestampNanos, long physicalDisplayId, boolean connected) {
		}

		/**
		* Called when a display hotplug event with connection error is received.
		*
		* @param timestampNanos The timestamp of the event, in the {@link System#nanoTime()}
		* timebase.
		* @param connectionError the hotplug connection error code.
		*/
		public void onHotplugConnectionError(long timestampNanos, int connectionError) {
		}

		/**
		* Called when a display mode changed event is received.
		*
		@@ -345,6 +355,11 @@ public abstract class DisplayEventReceiver {
		onHotplug(timestampNanos, physicalDisplayId, connected);
		}

		@SuppressWarnings("unused")
		private void dispatchHotplugConnectionError(long timestampNanos, int connectionError) {
		onHotplugConnectionError(timestampNanos, connectionError);
		}

		// Called from native code.
		@SuppressWarnings("unused")
		private void dispatchModeChanged(long timestampNanos, long physicalDisplayId, int modeId,

core/jni/android_view_DisplayEventReceiver.cpp

+24 −2

Original line number	Diff line number	Diff line
		@@ -38,6 +38,7 @@ static struct {

		jmethodID dispatchVsync;
		jmethodID dispatchHotplug;
		jmethodID dispatchHotplugConnectionError;
		jmethodID dispatchModeChanged;
		jmethodID dispatchFrameRateOverrides;

		@@ -89,6 +90,7 @@ private:
		void dispatchVsync(nsecs_t timestamp, PhysicalDisplayId displayId, uint32_t count,
		VsyncEventData vsyncEventData) override;
		void dispatchHotplug(nsecs_t timestamp, PhysicalDisplayId displayId, bool connected) override;
		void dispatchHotplugConnectionError(nsecs_t timestamp, int errorCode) override;
		void dispatchModeChanged(nsecs_t timestamp, PhysicalDisplayId displayId, int32_t modeId,
		nsecs_t renderPeriod) override;
		void dispatchFrameRateOverrides(nsecs_t timestamp, PhysicalDisplayId displayId,
		@@ -230,6 +232,22 @@ void NativeDisplayEventReceiver::dispatchHotplug(nsecs_t timestamp, PhysicalDisp
		mMessageQueue->raiseAndClearException(env, "dispatchHotplug");
		}

		void NativeDisplayEventReceiver::dispatchHotplugConnectionError(nsecs_t timestamp,
		int connectionError) {
		JNIEnv* env = AndroidRuntime::getJNIEnv();

		ScopedLocalRef<jobject> receiverObj(env, GetReferent(env, mReceiverWeakGlobal));
		if (receiverObj.get()) {
		ALOGV("receiver %p ~ Invoking hotplug dispatchHotplugConnectionError handler.", this);
		env->CallVoidMethod(receiverObj.get(),
		gDisplayEventReceiverClassInfo.dispatchHotplugConnectionError,
		timestamp, connectionError);
		ALOGV("receiver %p ~ Returned from hotplug dispatchHotplugConnectionError handler.", this);
		}

		mMessageQueue->raiseAndClearException(env, "dispatchHotplugConnectionError");
		}

		void NativeDisplayEventReceiver::dispatchModeChanged(nsecs_t timestamp, PhysicalDisplayId displayId,
		int32_t modeId, nsecs_t renderPeriod) {
		JNIEnv* env = AndroidRuntime::getJNIEnv();
		@@ -354,8 +372,12 @@ int register_android_view_DisplayEventReceiver(JNIEnv* env) {

		gDisplayEventReceiverClassInfo.dispatchVsync =
		GetMethodIDOrDie(env, gDisplayEventReceiverClassInfo.clazz, "dispatchVsync", "(JJI)V");
		gDisplayEventReceiverClassInfo.dispatchHotplug = GetMethodIDOrDie(env,
		gDisplayEventReceiverClassInfo.clazz, "dispatchHotplug", "(JJZ)V");
		gDisplayEventReceiverClassInfo.dispatchHotplug =
		GetMethodIDOrDie(env, gDisplayEventReceiverClassInfo.clazz, "dispatchHotplug",
		"(JJZ)V");
		gDisplayEventReceiverClassInfo.dispatchHotplugConnectionError =
		GetMethodIDOrDie(env, gDisplayEventReceiverClassInfo.clazz,
		"dispatchHotplugConnectionError", "(JI)V");
		gDisplayEventReceiverClassInfo.dispatchModeChanged =
		GetMethodIDOrDie(env, gDisplayEventReceiverClassInfo.clazz, "dispatchModeChanged",
		"(JJIJ)V");

services/core/java/com/android/server/display/LocalDisplayAdapter.java

+15 −0

Original line number	Diff line number	Diff line
		@@ -1344,6 +1344,7 @@ final class LocalDisplayAdapter extends DisplayAdapter {

		public interface DisplayEventListener {
		void onHotplug(long timestampNanos, long physicalDisplayId, boolean connected);
		void onHotplugConnectionError(long timestampNanos, int connectionError);
		void onModeChanged(long timestampNanos, long physicalDisplayId, int modeId,
		long renderPeriod);
		void onFrameRateOverridesChanged(long timestampNanos, long physicalDisplayId,
		@@ -1365,6 +1366,11 @@ final class LocalDisplayAdapter extends DisplayAdapter {
		mListener.onHotplug(timestampNanos, physicalDisplayId, connected);
		}

		@Override
		public void onHotplugConnectionError(long timestampNanos, int errorCode) {
		mListener.onHotplugConnectionError(timestampNanos, errorCode);
		}

		@Override
		public void onModeChanged(long timestampNanos, long physicalDisplayId, int modeId,
		long renderPeriod) {
		@@ -1390,6 +1396,15 @@ final class LocalDisplayAdapter extends DisplayAdapter {
		}
		}

		@Override
		public void onHotplugConnectionError(long timestampNanos, int connectionError) {
		if (DEBUG) {
		Slog.d(TAG, "onHotplugConnectionError("
		+ "timestampNanos=" + timestampNanos
		+ ", connectionError=" + connectionError + ")");
		}
		}

		@Override
		public void onModeChanged(long timestampNanos, long physicalDisplayId, int modeId,
		long renderPeriod) {