diff --git a/cmds/installd/InstalldNativeService.cpp b/cmds/installd/InstalldNativeService.cpp
index 22ad718..e3021d8 100644
--- a/cmds/installd/InstalldNativeService.cpp
+++ b/cmds/installd/InstalldNativeService.cpp
@@ -1698,7 +1698,7 @@
                 collectQuotaStats(device, userId, appId, nullptr, &extStats);
             }
         }
-        appSize = extStats.dataSize + extStats.cacheSize;
+        appSize = extStats.dataSize;
         ATRACE_END();
     } else {
         ATRACE_BEGIN("manual");
diff --git a/include/gui/DisplayEventReceiver.h b/include/gui/DisplayEventReceiver.h
index 9557b4f..32ce59a 100644
--- a/include/gui/DisplayEventReceiver.h
+++ b/include/gui/DisplayEventReceiver.h
@@ -25,6 +25,7 @@
 #include <utils/Timers.h>
 
 #include <binder/IInterface.h>
+#include <gui/ISurfaceComposer.h>
 
 // ----------------------------------------------------------------------------
 
@@ -83,7 +84,8 @@
      * or requestNextVsync to receive them.
      * Other events start being delivered immediately.
      */
-    DisplayEventReceiver();
+    DisplayEventReceiver(
+            ISurfaceComposer::VsyncSource vsyncSource = ISurfaceComposer::eVsyncSourceApp);
 
     /*
      * ~DisplayEventReceiver severs the connection with SurfaceFlinger, new events
diff --git a/include/gui/ISurfaceComposer.h b/include/gui/ISurfaceComposer.h
index 1112973..f80ba00 100644
--- a/include/gui/ISurfaceComposer.h
+++ b/include/gui/ISurfaceComposer.h
@@ -72,6 +72,11 @@
         eRotate270  = 3
     };
 
+    enum VsyncSource {
+        eVsyncSourceApp = 0,
+        eVsyncSourceSurfaceFlinger = 1
+    };
+
     /* create connection with surface flinger, requires
      * ACCESS_SURFACE_FLINGER permission
      */
@@ -89,7 +94,8 @@
             const sp<IGraphicBufferProducer>& parent) = 0;
 
     /* return an IDisplayEventConnection */
-    virtual sp<IDisplayEventConnection> createDisplayEventConnection() = 0;
+    virtual sp<IDisplayEventConnection> createDisplayEventConnection(
+            VsyncSource vsyncSource = eVsyncSourceApp) = 0;
 
     /* create a virtual display
      * requires ACCESS_SURFACE_FLINGER permission.
diff --git a/libs/gui/DisplayEventReceiver.cpp b/libs/gui/DisplayEventReceiver.cpp
index 1507d51..1757ec1 100644
--- a/libs/gui/DisplayEventReceiver.cpp
+++ b/libs/gui/DisplayEventReceiver.cpp
@@ -32,10 +32,10 @@
 
 // ---------------------------------------------------------------------------
 
-DisplayEventReceiver::DisplayEventReceiver() {
+DisplayEventReceiver::DisplayEventReceiver(ISurfaceComposer::VsyncSource vsyncSource) {
     sp<ISurfaceComposer> sf(ComposerService::getComposerService());
     if (sf != NULL) {
-        mEventConnection = sf->createDisplayEventConnection();
+        mEventConnection = sf->createDisplayEventConnection(vsyncSource);
         if (mEventConnection != NULL) {
             mDataChannel = std::make_unique<gui::BitTube>();
             mEventConnection->stealReceiveChannel(mDataChannel.get());
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index 2516fb8..0a0d112 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -201,7 +201,7 @@
         return NO_ERROR;
     }
 
-    virtual sp<IDisplayEventConnection> createDisplayEventConnection()
+    virtual sp<IDisplayEventConnection> createDisplayEventConnection(VsyncSource vsyncSource)
     {
         Parcel data, reply;
         sp<IDisplayEventConnection> result;
@@ -210,6 +210,7 @@
         if (err != NO_ERROR) {
             return result;
         }
+        data.writeInt32(static_cast<int32_t>(vsyncSource));
         err = remote()->transact(
                 BnSurfaceComposer::CREATE_DISPLAY_EVENT_CONNECTION,
                 data, &reply);
@@ -586,7 +587,8 @@
         }
         case CREATE_DISPLAY_EVENT_CONNECTION: {
             CHECK_INTERFACE(ISurfaceComposer, data, reply);
-            sp<IDisplayEventConnection> connection(createDisplayEventConnection());
+            sp<IDisplayEventConnection> connection(createDisplayEventConnection(
+                    static_cast<ISurfaceComposer::VsyncSource>(data.readInt32())));
             reply->writeStrongBinder(IInterface::asBinder(connection));
             return NO_ERROR;
         }
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index 81820de..e18af17 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -465,7 +465,8 @@
             const sp<IGraphicBufferProducer>& /* parent */) override {
         return nullptr;
     }
-    sp<IDisplayEventConnection> createDisplayEventConnection() override {
+    sp<IDisplayEventConnection> createDisplayEventConnection(ISurfaceComposer::VsyncSource)
+            override {
         return nullptr;
     }
     sp<IBinder> createDisplay(const String8& /*displayName*/,
diff --git a/libs/nativewindow/AHardwareBuffer.cpp b/libs/nativewindow/AHardwareBuffer.cpp
index 2f4b996..ed292e7 100644
--- a/libs/nativewindow/AHardwareBuffer.cpp
+++ b/libs/nativewindow/AHardwareBuffer.cpp
@@ -44,12 +44,12 @@
     if (!outBuffer || !desc)
         return BAD_VALUE;
 
-    int format = AHardwareBuffer_convertToPixelFormat(desc->format);
-    if (format == 0) {
-        ALOGE("Invalid pixel format %u", desc->format);
+    if (!AHardwareBuffer_isValidPixelFormat(desc->format)) {
+        ALOGE("Invalid AHardwareBuffer pixel format %u (%#x))", desc->format, desc->format);
         return BAD_VALUE;
     }
 
+    int format = AHardwareBuffer_convertToPixelFormat(desc->format);
     if (desc->rfu0 != 0 || desc->rfu1 != 0) {
         ALOGE("AHardwareBuffer_Desc::rfu fields must be 0");
         return BAD_VALUE;
@@ -296,32 +296,95 @@
     return (mask & bitsToCheck) == bitsToCheck && bitsToCheck;
 }
 
-uint32_t AHardwareBuffer_convertFromPixelFormat(uint32_t format) {
+bool AHardwareBuffer_isValidPixelFormat(uint32_t format) {
+    static_assert(HAL_PIXEL_FORMAT_RGBA_8888 == AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_RGBX_8888 == AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_RGB_565 == AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_RGB_888 == AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_RGBA_FP16 == AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_RGBA_1010102 == AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_BLOB == AHARDWAREBUFFER_FORMAT_BLOB,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_BGRA_8888 == AHARDWAREBUFFER_FORMAT_B8G8R8A8_UNORM,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_YV12 == AHARDWAREBUFFER_FORMAT_YV12,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_Y8 == AHARDWAREBUFFER_FORMAT_Y8,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_Y16 == AHARDWAREBUFFER_FORMAT_Y16,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_RAW16 == AHARDWAREBUFFER_FORMAT_RAW16,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_RAW10 == AHARDWAREBUFFER_FORMAT_RAW10,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_RAW12 == AHARDWAREBUFFER_FORMAT_RAW12,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_RAW_OPAQUE == AHARDWAREBUFFER_FORMAT_RAW_OPAQUE,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED == AHARDWAREBUFFER_FORMAT_IMPLEMENTATION_DEFINED,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_YCBCR_420_888 == AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_420,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_YCBCR_422_888 == AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_422,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_YCBCR_444_888 == AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_444,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_FLEX_RGB_888 == AHARDWAREBUFFER_FORMAT_FLEX_R8G8B8,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_FLEX_RGBA_8888 == AHARDWAREBUFFER_FORMAT_FLEX_R8G8B8A8,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_YCBCR_422_SP == AHARDWAREBUFFER_FORMAT_YCbCr_422_SP,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_YCRCB_420_SP == AHARDWAREBUFFER_FORMAT_YCrCb_420_SP,
+            "HAL and AHardwareBuffer pixel format don't match");
+    static_assert(HAL_PIXEL_FORMAT_YCBCR_422_I == AHARDWAREBUFFER_FORMAT_YCbCr_422_I,
+            "HAL and AHardwareBuffer pixel format don't match");
+
     switch (format) {
-        case HAL_PIXEL_FORMAT_RGBA_8888:    return AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM;
-        case HAL_PIXEL_FORMAT_RGBX_8888:    return AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM;
-        case HAL_PIXEL_FORMAT_RGB_565:      return AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM;
-        case HAL_PIXEL_FORMAT_RGB_888:      return AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM;
-        case HAL_PIXEL_FORMAT_RGBA_FP16:    return AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT;
-        case HAL_PIXEL_FORMAT_RGBA_1010102: return AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM;
-        case HAL_PIXEL_FORMAT_BLOB:         return AHARDWAREBUFFER_FORMAT_BLOB;
-        default:ALOGE("Unknown pixel format %u", format);
-            return 0;
+        case AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM:
+        case AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM:
+        case AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM:
+        case AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM:
+        case AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT:
+        case AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM:
+        case AHARDWAREBUFFER_FORMAT_BLOB:
+            // VNDK formats only -- unfortunately we can't differentiate from where we're called
+        case AHARDWAREBUFFER_FORMAT_B8G8R8A8_UNORM:
+        case AHARDWAREBUFFER_FORMAT_YV12:
+        case AHARDWAREBUFFER_FORMAT_Y8:
+        case AHARDWAREBUFFER_FORMAT_Y16:
+        case AHARDWAREBUFFER_FORMAT_RAW16:
+        case AHARDWAREBUFFER_FORMAT_RAW10:
+        case AHARDWAREBUFFER_FORMAT_RAW12:
+        case AHARDWAREBUFFER_FORMAT_RAW_OPAQUE:
+        case AHARDWAREBUFFER_FORMAT_IMPLEMENTATION_DEFINED:
+        case AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_420:
+        case AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_422:
+        case AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_444:
+        case AHARDWAREBUFFER_FORMAT_FLEX_R8G8B8:
+        case AHARDWAREBUFFER_FORMAT_FLEX_R8G8B8A8:
+        case AHARDWAREBUFFER_FORMAT_YCbCr_422_SP:
+        case AHARDWAREBUFFER_FORMAT_YCrCb_420_SP:
+        case AHARDWAREBUFFER_FORMAT_YCbCr_422_I:
+            return true;
+
+        default:
+            return false;
     }
 }
 
-uint32_t AHardwareBuffer_convertToPixelFormat(uint32_t format) {
-    switch (format) {
-        case AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM:         return HAL_PIXEL_FORMAT_RGBA_8888;
-        case AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM:         return HAL_PIXEL_FORMAT_RGBX_8888;
-        case AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM:           return HAL_PIXEL_FORMAT_RGB_565;
-        case AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM:           return HAL_PIXEL_FORMAT_RGB_888;
-        case AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT:     return HAL_PIXEL_FORMAT_RGBA_FP16;
-        case AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM:      return HAL_PIXEL_FORMAT_RGBA_1010102;
-        case AHARDWAREBUFFER_FORMAT_BLOB:                   return HAL_PIXEL_FORMAT_BLOB;
-        default:ALOGE("Unknown AHardwareBuffer format %u", format);
-            return 0;
-    }
+uint32_t AHardwareBuffer_convertFromPixelFormat(uint32_t hal_format) {
+    return hal_format;
+}
+
+uint32_t AHardwareBuffer_convertToPixelFormat(uint32_t ahardwarebuffer_format) {
+    return ahardwarebuffer_format;
 }
 
 uint64_t AHardwareBuffer_convertToGrallocUsageBits(uint64_t usage) {
diff --git a/libs/nativewindow/include/private/android/AHardwareBufferHelpers.h b/libs/nativewindow/include/private/android/AHardwareBufferHelpers.h
index ed6b169..71f5634 100644
--- a/libs/nativewindow/include/private/android/AHardwareBufferHelpers.h
+++ b/libs/nativewindow/include/private/android/AHardwareBufferHelpers.h
@@ -32,11 +32,21 @@
 
 namespace android {
 
+// whether this AHardwareBuffer format is valid
+bool AHardwareBuffer_isValidPixelFormat(uint32_t ahardwarebuffer_format);
+
+// convert AHardwareBuffer format to HAL format (note: this is a no-op)
 uint32_t AHardwareBuffer_convertFromPixelFormat(uint32_t format);
+
+// convert HAL format to AHardwareBuffer format (note: this is a no-op)
 uint32_t AHardwareBuffer_convertToPixelFormat(uint32_t format);
-uint64_t AHardwareBuffer_convertToGrallocUsageBits(uint64_t usage);
+
+// convert AHardwareBuffer usage bits to HAL usage bits (note: this is a no-op)
 uint64_t AHardwareBuffer_convertFromGrallocUsageBits(uint64_t usage);
 
+// convert HAL usage bits to AHardwareBuffer usage bits  (note: this is a no-op)
+uint64_t AHardwareBuffer_convertToGrallocUsageBits(uint64_t usage);
+
 class GraphicBuffer;
 const GraphicBuffer* AHardwareBuffer_to_GraphicBuffer(const AHardwareBuffer* buffer);
 GraphicBuffer* AHardwareBuffer_to_GraphicBuffer(AHardwareBuffer* buffer);
diff --git a/libs/nativewindow/include/vndk/hardware_buffer.h b/libs/nativewindow/include/vndk/hardware_buffer.h
index dc2dcbe..802edcc 100644
--- a/libs/nativewindow/include/vndk/hardware_buffer.h
+++ b/libs/nativewindow/include/vndk/hardware_buffer.h
@@ -26,6 +26,49 @@
 
 const native_handle_t* AHardwareBuffer_getNativeHandle(const AHardwareBuffer* buffer);
 
+
+/**
+ * Buffer pixel formats.
+ */
+enum {
+    /* for future proofing, keep these in sync with system/graphics-base.h */
+
+    /* same as HAL_PIXEL_FORMAT_BGRA_8888 */
+    AHARDWAREBUFFER_FORMAT_B8G8R8A8_UNORM           = 5,
+    /* same as HAL_PIXEL_FORMAT_YV12 */
+    AHARDWAREBUFFER_FORMAT_YV12                     = 0x32315659,
+    /* same as HAL_PIXEL_FORMAT_Y8 */
+    AHARDWAREBUFFER_FORMAT_Y8                       = 0x20203859,
+    /* same as HAL_PIXEL_FORMAT_Y16 */
+    AHARDWAREBUFFER_FORMAT_Y16                      = 0x20363159,
+    /* same as HAL_PIXEL_FORMAT_RAW16 */
+    AHARDWAREBUFFER_FORMAT_RAW16                    = 0x20,
+    /* same as HAL_PIXEL_FORMAT_RAW10 */
+    AHARDWAREBUFFER_FORMAT_RAW10                    = 0x25,
+    /* same as HAL_PIXEL_FORMAT_RAW12 */
+    AHARDWAREBUFFER_FORMAT_RAW12                    = 0x26,
+    /* same as HAL_PIXEL_FORMAT_RAW_OPAQUE */
+    AHARDWAREBUFFER_FORMAT_RAW_OPAQUE               = 0x24,
+    /* same as HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED */
+    AHARDWAREBUFFER_FORMAT_IMPLEMENTATION_DEFINED   = 0x22,
+    /* same as HAL_PIXEL_FORMAT_YCBCR_420_888 */
+    AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_420             = 0x23,
+    /* same as HAL_PIXEL_FORMAT_YCBCR_422_888 */
+    AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_422             = 0x27,
+    /* same as HAL_PIXEL_FORMAT_YCBCR_444_888 */
+    AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_444             = 0x28,
+    /* same as HAL_PIXEL_FORMAT_FLEX_RGB_888 */
+    AHARDWAREBUFFER_FORMAT_FLEX_R8G8B8              = 0x29,
+    /* same as HAL_PIXEL_FORMAT_FLEX_RGBA_8888 */
+    AHARDWAREBUFFER_FORMAT_FLEX_R8G8B8A8            = 0x2A,
+    /* same as HAL_PIXEL_FORMAT_YCBCR_422_SP */
+    AHARDWAREBUFFER_FORMAT_YCbCr_422_SP             = 0x10,
+    /* same as HAL_PIXEL_FORMAT_YCRCB_420_SP */
+    AHARDWAREBUFFER_FORMAT_YCrCb_420_SP             = 0x11,
+    /* same as HAL_PIXEL_FORMAT_YCBCR_422_I */
+    AHARDWAREBUFFER_FORMAT_YCbCr_422_I              = 0x14,
+};
+
 __END_DECLS
 
 #endif /* ANDROID_VNDK_NATIVEWINDOW_AHARDWAREBUFFER_H */
diff --git a/libs/vr/libdvr/include/dvr/dvr_pose.h b/libs/vr/libdvr/include/dvr/dvr_pose.h
index a7e83c9..4256cf9 100644
--- a/libs/vr/libdvr/include/dvr/dvr_pose.h
+++ b/libs/vr/libdvr/include/dvr/dvr_pose.h
@@ -36,16 +36,23 @@
   int64_t timestamp_ns;
   // Bitmask of DVR_POSE_FLAG_* constants that apply to this pose.
   //
-  // If DVR_POSE_FLAG_VALID is not set, the pose is indeterminate.
+  // If DVR_POSE_FLAG_INVALID is set, the pose is indeterminate.
   uint64_t flags;
   // Reserved padding to 128 bytes.
   uint8_t pad[16];
 } DvrPoseAsync;
 
 enum {
-  DVR_POSE_FLAG_VALID = (1UL << 0),       // This pose is valid.
-  DVR_POSE_FLAG_HEAD = (1UL << 1),        // This pose is the head.
-  DVR_POSE_FLAG_CONTROLLER = (1UL << 2),  // This pose is a controller.
+  DVR_POSE_FLAG_INVALID = (1UL << 0),       // This pose is invalid.
+  DVR_POSE_FLAG_INITIALIZING = (1UL << 1),  // The pose delivered during
+                                            // initialization and it may not be
+                                            // correct.
+  DVR_POSE_FLAG_3DOF =
+      (1UL << 2),  // This pose is derived from 3Dof sensors. If
+                   // this is not set, pose is derived using
+                   // 3Dof and 6Dof sensors.
+  DVR_POSE_FLAG_FLOOR_HEIGHT_INVALID =
+      (1UL << 3),  // If set the floor height is invalid.
 };
 
 // Represents a sensor pose sample.
@@ -70,8 +77,14 @@
   // Timestamp for the measurement in nanoseconds.
   int64_t timestamp_ns;
 
-  // Padding to 96 bytes so the size is a multiple of 16.
-  uint8_t padding[8];
+  // The combination of flags above.
+  uint64_t flags;
+
+  // The current floor height. May be updated at a lower cadence than pose.
+  float floor_height;
+
+  // Padding to 112 bytes so the size is a multiple of 16.
+  uint8_t padding[12];
 } DvrPose;
 
 __END_DECLS
diff --git a/libs/vr/libdvr/include/dvr/dvr_shared_buffers.h b/libs/vr/libdvr/include/dvr/dvr_shared_buffers.h
index 096f800..63c7385 100644
--- a/libs/vr/libdvr/include/dvr/dvr_shared_buffers.h
+++ b/libs/vr/libdvr/include/dvr/dvr_shared_buffers.h
@@ -11,7 +11,7 @@
 namespace dvr {
 
 // Increment when the layout for the buffers change.
-enum : uint32_t { kSharedBufferLayoutVersion = 1 };
+enum : uint32_t { kSharedBufferLayoutVersion = 2 };
 
 // Note: These buffers will be mapped from various system processes as well
 // as VrCore and the application processes in a r/w manner.
@@ -24,7 +24,7 @@
 
 // Sanity check for basic type sizes.
 static_assert(sizeof(DvrPoseAsync) == 128, "Unexpected size for DvrPoseAsync");
-static_assert(sizeof(DvrPose) == 96, "Unexpected size for DvrPose");
+static_assert(sizeof(DvrPose) == 112, "Unexpected size for DvrPose");
 static_assert(sizeof(DvrVsync) == 32, "Unexpected size for DvrVsync");
 static_assert(sizeof(DvrConfig) == 16, "Unexpected size for DvrConfig");
 
@@ -85,7 +85,7 @@
   uint8_t padding[12];
 };
 
-static_assert(sizeof(DvrVsyncPoseBuffer) == 1136,
+static_assert(sizeof(DvrVsyncPoseBuffer) == 1152,
               "Unexpected size for DvrVsyncPoseBuffer");
 
 // The keys for the dvr global buffers.
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 13472df..627bf77 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -1029,8 +1029,13 @@
 
 // ----------------------------------------------------------------------------
 
-sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection() {
-    return mEventThread->createEventConnection();
+sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection(
+        ISurfaceComposer::VsyncSource vsyncSource) {
+    if (vsyncSource == eVsyncSourceSurfaceFlinger) {
+        return mSFEventThread->createEventConnection();
+    } else {
+        return mEventThread->createEventConnection();
+    }
 }
 
 // ----------------------------------------------------------------------------
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 68a088a..e2a0470 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -277,7 +277,8 @@
         const sp<IGraphicBufferProducer>& bufferProducer) const;
     virtual status_t getSupportedFrameTimestamps(
             std::vector<FrameEvent>* outSupported) const;
-    virtual sp<IDisplayEventConnection> createDisplayEventConnection();
+    virtual sp<IDisplayEventConnection> createDisplayEventConnection(
+            ISurfaceComposer::VsyncSource vsyncSource = eVsyncSourceApp);
     virtual status_t captureScreen(const sp<IBinder>& display,
             const sp<IGraphicBufferProducer>& producer,
             Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
diff --git a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
index 0b3a0d0..6ea070d 100644
--- a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
+++ b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
@@ -933,8 +933,13 @@
 
 // ----------------------------------------------------------------------------
 
-sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection() {
-    return mEventThread->createEventConnection();
+sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection(
+        ISurfaceComposer::VsyncSource vsyncSource) {
+    if (vsyncSource == eVsyncSourceSurfaceFlinger) {
+        return mSFEventThread->createEventConnection();
+    } else {
+        return mEventThread->createEventConnection();
+    }
 }
 
 // ----------------------------------------------------------------------------