From 3e458306b0caf4e21294acc58286b24bda08a242 Mon Sep 17 00:00:00 2001
From: Mathias Agopian <mathias@google.com>
Date: Fri, 4 Nov 2011 18:46:11 -0700
Subject: [PATCH] Set the WM refresh rate to 60 Hz for tuna devices only DO NOT
 MERGE

This approach is TEMPORARY until we can do this properly.

Change-Id: I81a8f852df501b2faccffdae7cac954855a6c98f
---
 .../com/android/server/wm/WindowManagerService.java   |  8 ++------
 services/surfaceflinger/Android.mk                    |  4 ++++
 .../DisplayHardware/DisplayHardware.cpp               | 11 +++++++++++
 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/services/java/com/android/server/wm/WindowManagerService.java b/services/java/com/android/server/wm/WindowManagerService.java
index 6546d61869d1f..122d515894f65 100644
--- a/services/java/com/android/server/wm/WindowManagerService.java
+++ b/services/java/com/android/server/wm/WindowManagerService.java
@@ -226,11 +226,6 @@ public class WindowManagerService extends IWindowManager.Stub
      */
     static final int DEFAULT_FADE_IN_OUT_DURATION = 400;
 
-    /**
-     * Frame rate. TODO: Replace with Display.getRefreshRate() when that is reliable.
-     */
-    static final int FRAME_RATE = 48;
-
     /**
      * If true, the window manager will do its own custom freezing and general
      * management of the screen during rotation.
@@ -8665,7 +8660,8 @@ public class WindowManagerService extends IWindowManager.Stub
         if (needRelayout) {
             requestAnimationLocked(0);
         } else if (animating) {
-            requestAnimationLocked(currentTime+(1000/FRAME_RATE)-SystemClock.uptimeMillis());
+            final int refreshTimeUs = (int)(1000 / mDisplay.getRefreshRate());
+            requestAnimationLocked(currentTime + refreshTimeUs - SystemClock.uptimeMillis());
         }
 
         // Finally update all input windows now that the window changes have stabilized.
diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index 61a8358332ebb..10686c08deaa7 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -30,6 +30,10 @@ ifeq ($(TARGET_BOARD_PLATFORM), s5pc110)
 	LOCAL_CFLAGS += -DHAS_CONTEXT_PRIORITY -DNEVER_DEFAULT_TO_ASYNC_MODE
 endif
 
+ifneq (,$(findstring $(TARGET_DEVICE),tuna toro maguro))
+	LOCAL_CFLAGS += -DREFRESH_RATE=60
+endif
+
 
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
diff --git a/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp b/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
index f4be168383876..329c052708ac0 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
+++ b/services/surfaceflinger/DisplayHardware/DisplayHardware.cpp
@@ -141,6 +141,17 @@ void DisplayHardware::init(uint32_t dpy)
     mDpiY = mNativeWindow->ydpi;
     mRefreshRate = fbDev->fps;
 
+
+/* FIXME: this is a temporary HACK until we are able to report the refresh rate
+ * properly from the HAL. The WindowManagerService now relies on this value.
+ */
+#ifndef REFRESH_RATE
+    mRefreshRate = fbDev->fps;
+#else
+    mRefreshRate = REFRESH_RATE;
+#warning "refresh rate set via makefile to REFRESH_RATE"
+#endif
+
     EGLint w, h, dummy;
     EGLint numConfigs=0;
     EGLSurface surface;