commit f0681b34dffc1510cbd9c3da5c3a7e695553fa8d
author Jeff Brown <jeffbrown@google.com> Tue Oct 23 17:35:57 2012 -0700
committer Jeff Brown <jeffbrown@google.com> Tue Oct 23 20:37:40 2012 -0700
tree 750cc9603cd0571c9a229117129b6c21ab61be24
parent 56e75631bd737e5362309330d4839cc1dddb501c

Secure windows, secure surface views and secure displays.

Add new API to determine whether a display is secure.
Add new API to make a SurfaceView secure.
Clarify documentation.

Bug: 7368436
Change-Id: I7068c34c910e43b4bc72e43fa0dded59a25f0fe2

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

diff --git a/services/java/com/android/server/display/LocalDisplayAdapter.java b/services/java/com/android/server/display/LocalDisplayAdapter.java
index d6c5248..fa56b83 100644
--- a/services/java/com/android/server/display/LocalDisplayAdapter.java
+++ b/services/java/com/android/server/display/LocalDisplayAdapter.java
@@ -127,10 +127,12 @@
                 mInfo.height = mPhys.height;
                 mInfo.refreshRate = mPhys.refreshRate;
 
-                // Assume that all built-in displays have secure output (eg. HDCP) and
+                // Assume that all built-in displays that have secure output (eg. HDCP) also
                 // support compositing from gralloc protected buffers.
-                mInfo.flags = DisplayDeviceInfo.FLAG_SECURE
-                        | DisplayDeviceInfo.FLAG_SUPPORTS_PROTECTED_BUFFERS;
+                if (mPhys.secure) {
+                    mInfo.flags = DisplayDeviceInfo.FLAG_SECURE
+                            | DisplayDeviceInfo.FLAG_SUPPORTS_PROTECTED_BUFFERS;
+                }
 
                 if (mBuiltInDisplayId == Surface.BUILT_IN_DISPLAY_ID_MAIN) {
                     mInfo.name = getContext().getResources().getString(

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

diff --git a/services/java/com/android/server/display/LogicalDisplay.java b/services/java/com/android/server/display/LogicalDisplay.java
index aa7ea82..aa62aee 100644
--- a/services/java/com/android/server/display/LogicalDisplay.java
+++ b/services/java/com/android/server/display/LogicalDisplay.java
@@ -186,6 +186,9 @@
             if ((deviceInfo.flags & DisplayDeviceInfo.FLAG_SUPPORTS_PROTECTED_BUFFERS) != 0) {
                 mBaseDisplayInfo.flags |= Display.FLAG_SUPPORTS_PROTECTED_BUFFERS;
             }
+            if ((deviceInfo.flags & DisplayDeviceInfo.FLAG_SECURE) != 0) {
+                mBaseDisplayInfo.flags |= Display.FLAG_SECURE;
+            }
             mBaseDisplayInfo.name = deviceInfo.name;
             mBaseDisplayInfo.appWidth = deviceInfo.width;
             mBaseDisplayInfo.appHeight = deviceInfo.height;

services/java/com/android/server/display/WifiDisplayAdapter.java

diff --git a/services/java/com/android/server/display/WifiDisplayAdapter.java b/services/java/com/android/server/display/WifiDisplayAdapter.java
index 97fc3e6..2ea83ee 100644
--- a/services/java/com/android/server/display/WifiDisplayAdapter.java
+++ b/services/java/com/android/server/display/WifiDisplayAdapter.java
@@ -281,18 +281,19 @@
             scheduleStatusChangedBroadcastLocked();
         }
 
+        boolean secure = (flags & RemoteDisplay.DISPLAY_FLAG_SECURE) != 0;
         int deviceFlags = 0;
-        if ((flags & RemoteDisplay.DISPLAY_FLAG_SECURE) != 0) {
+        if (secure) {
             deviceFlags |= DisplayDeviceInfo.FLAG_SECURE;
-        }
-        if (mSupportsProtectedBuffers) {
-            deviceFlags |= DisplayDeviceInfo.FLAG_SUPPORTS_PROTECTED_BUFFERS;
+            if (mSupportsProtectedBuffers) {
+                deviceFlags |= DisplayDeviceInfo.FLAG_SUPPORTS_PROTECTED_BUFFERS;
+            }
         }
 
         float refreshRate = 60.0f; // TODO: get this for real
 
         String name = display.getFriendlyDisplayName();
-        IBinder displayToken = Surface.createDisplay(name, false);
+        IBinder displayToken = Surface.createDisplay(name, secure);
         mDisplayDevice = new WifiDisplayDevice(displayToken, name, width, height,
                 refreshRate, deviceFlags, surface);
         sendDisplayDeviceEventLocked(mDisplayDevice, DISPLAY_DEVICE_EVENT_ADDED);