commit 59119e658a12279e8fff508f8773843de2d90917
author Mathias Agopian <mathias@google.com> Mon Oct 11 12:37:43 2010 -0700
committer Joe Onorato <joeo@android.com> Tue Oct 12 14:16:11 2010 -0700
tree db492638cc54a48cb0ae03832e9fb66cad128dc6
parent 3c8e66f9a44e502d337d9d9d063738c8f831e5ba

turn off the electron beam

Change-Id: I335fb6719f1d5a3f1c6f37a046fd1c2c4ed2bbc6

services/surfaceflinger/DisplayHardware/DisplayHardwareBase.cpp

diff --git a/services/surfaceflinger/DisplayHardware/DisplayHardwareBase.cpp b/services/surfaceflinger/DisplayHardware/DisplayHardwareBase.cpp
index 1d09f84..fe9a5ab 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayHardwareBase.cpp
+++ b/services/surfaceflinger/DisplayHardware/DisplayHardwareBase.cpp
@@ -359,7 +359,7 @@
 
 DisplayHardwareBase::DisplayHardwareBase(const sp<SurfaceFlinger>& flinger,
         uint32_t displayIndex) 
-    : mCanDraw(true)
+    : mCanDraw(true), mScreenAcquired(true)
 {
     mDisplayEventThread = new DisplayEventThread(flinger);
     if (mDisplayEventThread->initCheck() != NO_ERROR) {
@@ -374,18 +374,21 @@
     mDisplayEventThread->requestExitAndWait();
 }
 
+void DisplayHardwareBase::setCanDraw(bool canDraw)
+{
+    mCanDraw = canDraw;
+}
 
 bool DisplayHardwareBase::canDraw() const
 {
-    return mCanDraw;
+    return mCanDraw && mScreenAcquired;
 }
 
 void DisplayHardwareBase::releaseScreen() const
 {
     status_t err = mDisplayEventThread->releaseScreen();
     if (err >= 0) {
-        //LOGD("screen given-up");
-        mCanDraw = false;
+        mScreenAcquired = false;
     }
 }
 
@@ -393,9 +396,14 @@
 {
     status_t err = mDisplayEventThread->acquireScreen();
     if (err >= 0) {
-        //LOGD("screen returned");
         mCanDraw = true;
+        mScreenAcquired = true;
     }
 }
 
+bool DisplayHardwareBase::isScreenAcquired() const
+{
+    return mScreenAcquired;
+}
+
 }; // namespace android

services/surfaceflinger/DisplayHardware/DisplayHardwareBase.h

diff --git a/services/surfaceflinger/DisplayHardware/DisplayHardwareBase.h b/services/surfaceflinger/DisplayHardware/DisplayHardwareBase.h
index 8369bb8..fa6a0c4 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayHardwareBase.h
+++ b/services/surfaceflinger/DisplayHardware/DisplayHardwareBase.h
@@ -40,7 +40,11 @@
     // console managment
     void releaseScreen() const;
     void acquireScreen() const;
+    bool isScreenAcquired() const;
+
     bool canDraw() const;
+    void setCanDraw(bool canDraw);
+
 
 private:
     class DisplayEventThreadBase : public Thread {
@@ -89,6 +93,7 @@
 
     sp<DisplayEventThreadBase>  mDisplayEventThread;
     mutable int                 mCanDraw;
+    mutable int                 mScreenAcquired;
 };
 
 }; // namespace android