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Commit 5d908ab4 authored by Santos Cordon's avatar Santos Cordon
Browse files

Log each time the layer stack changes for DisplayDevice. 

Test: Manually note change in logcat.
Bug: 258910717
Change-Id: I2dc91f6c40afb91b3f0187c09be3c6639ae739b5
parent 99dc404b

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

+6 −1
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ import android.graphics.Point; 
import android.graphics.Rect;

import android.hardware.display.DisplayViewport;

import android.os.IBinder;

import android.util.Slog;

import android.view.Display;

import android.view.DisplayAddress;

import android.view.Surface;
@@ -37,6 +38,7 @@ import java.io.PrintWriter; 
 * </p>

 */

abstract class DisplayDevice {

    private static final String TAG = "DisplayDevice";

    private static final Display.Mode EMPTY_DISPLAY_MODE = new Display.Mode.Builder().build();



    private final DisplayAdapter mDisplayAdapter;
@@ -266,10 +268,13 @@ abstract class DisplayDevice { 
    /**

     * Sets the display layer stack while in a transaction.

     */

    public final void setLayerStackLocked(SurfaceControl.Transaction t, int layerStack) {

    public final void setLayerStackLocked(SurfaceControl.Transaction t, int layerStack,

            int layerStackTag) {

        if (mCurrentLayerStack != layerStack) {

            mCurrentLayerStack = layerStack;

            t.setDisplayLayerStack(mDisplayToken, layerStack);

            Slog.i(TAG, "[" + layerStackTag + "] Layerstack set to " + layerStack + " for "

                    + mUniqueId);

        }

    }

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

+1 −1
Original line number Diff line number Diff line
@@ -494,7 +494,7 @@ final class LogicalDisplay { 
            DisplayDevice device,

            boolean isBlanked) {

        // Set the layer stack.

        device.setLayerStackLocked(t, isBlanked ? BLANK_LAYER_STACK : mLayerStack);

        device.setLayerStackLocked(t, isBlanked ? BLANK_LAYER_STACK : mLayerStack, mDisplayId);

        // Also inform whether the device is the same one sent to inputflinger for its layerstack.

        // Prevent displays that are disabled from receiving input.

        // TODO(b/188914255): Remove once input can dispatch against device vs layerstack.