Add ability to turn off VR virtual display functionality.

Add flag to enable/disable virtual displays via the existing
setDisplayProperties API. This makes it possible for the VR system
to turn off virtual displays if necessary after we ship.

Bug: 62546364
Test: Run 'adb shell vr enable-virtual-display [true|false] to toggle while 2d in 3d
runs.

Change-Id: Iae029be501d61189fced981dbc554e984fa7ed4b

1 files changed, 23 insertions, 1 deletions

diff --git a/cmds/vr/src/com/android/commands/vr/Vr.java b/cmds/vr/src/com/android/commands/vr/Vr.java
index b765866faef9..8fb1b7b80618 100644
--- a/cmds/vr/src/com/android/commands/vr/Vr.java
+++ b/cmds/vr/src/com/android/commands/vr/Vr.java
@@ -41,6 +41,7 @@ public final class Vr extends BaseCommand {
         "set-persistent-vr-mode-enabled";
     private static final String COMMAND_SET_VR2D_DISPLAY_PROPERTIES =
         "set-display-props";
+    private static final String COMMAND_ENABLE_VD = "enable-virtual-display";
 
     private IVrManager mVrService;
 
@@ -49,7 +50,8 @@ public final class Vr extends BaseCommand {
         out.println(
                 "usage: vr [subcommand]\n" +
                 "usage: vr set-persistent-vr-mode-enabled [true|false]\n" +
-                "usage: vr set-display-props [width] [height] [dpi]\n"
+                "usage: vr set-display-props [width] [height] [dpi]\n" +
+                "usage: vr enable-virtual-display [true|false]\n"
                 );
     }
 
@@ -69,6 +71,9 @@ public final class Vr extends BaseCommand {
             case COMMAND_SET_PERSISTENT_VR_MODE_ENABLED:
                 runSetPersistentVrModeEnabled();
                 break;
+            case COMMAND_ENABLE_VD:
+                runEnableVd();
+                break;
             default:
                 throw new IllegalArgumentException ("unknown command '" + command + "'");
         }
@@ -94,6 +99,23 @@ public final class Vr extends BaseCommand {
         }
     }
 
+    private void runEnableVd() throws RemoteException {
+        Vr2dDisplayProperties.Builder builder = new Vr2dDisplayProperties.Builder();
+
+        String value = nextArgRequired();
+        if ("true".equals(value)) {
+            builder.setEnabled(true);
+        } else if ("false".equals(value)) {
+            builder.setEnabled(false);
+        } // Don't do anything if not exactly true/false
+
+        try {
+            mVrService.setVr2dDisplayProperties(builder.build());
+        } catch (RemoteException re) {
+            System.err.println("Error: Can't enable (" + value +") virtual display" + re);
+        }
+    }
+
     private void runSetPersistentVrModeEnabled() throws RemoteException {
         String enableStr = nextArg();
         boolean enabled = Boolean.parseBoolean(enableStr);