DO NOT MERGE - Display mode switches.

Knowledge of the various modes of a display is now available to apps, and they can request a specific mode for their windows.

b/18241736

Change-Id: I8eb16ff713e878512faca3ca6662254f08a9be7f
(cherry picked from commit 5c7773d86484aac5737667c604bd8fe8150c2136)

1 files changed, 8 insertions, 0 deletions

diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 6bf68e8..06d3b22 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -691,6 +691,8 @@ public class WindowManagerService extends IWindowManager.Stub
         boolean mObscureApplicationContentOnSecondaryDisplays = false;
 
         float mPreferredRefreshRate = 0;
+
+        int mPreferredModeId = 0;
     }
     final LayoutFields mInnerFields = new LayoutFields();
 
@@ -9713,6 +9715,10 @@ public class WindowManagerService extends IWindowManager.Stub
                         && w.mAttrs.preferredRefreshRate != 0) {
                     mInnerFields.mPreferredRefreshRate = w.mAttrs.preferredRefreshRate;
                 }
+                if (mInnerFields.mPreferredModeId == 0
+                        && w.mAttrs.preferredDisplayModeId != 0) {
+                    mInnerFields.mPreferredModeId = w.mAttrs.preferredDisplayModeId;
+                }
             }
         }
     }
@@ -9846,6 +9852,7 @@ public class WindowManagerService extends IWindowManager.Stub
                 // Reset for each display.
                 mInnerFields.mDisplayHasContent = false;
                 mInnerFields.mPreferredRefreshRate = 0;
+                mInnerFields.mPreferredModeId = 0;
 
                 int repeats = 0;
                 do {
@@ -10066,6 +10073,7 @@ public class WindowManagerService extends IWindowManager.Stub
 
                 mDisplayManagerInternal.setDisplayProperties(displayId,
                         mInnerFields.mDisplayHasContent, mInnerFields.mPreferredRefreshRate,
+                        mInnerFields.mPreferredModeId,
                         true /* inTraversal, must call performTraversalInTrans... below */);
 
                 getDisplayContentLocked(displayId).stopDimmingIfNeeded();