diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index 073543c..2f27fd2 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -34,8 +34,10 @@
 
 #include <system/graphics.h>
 
+#include <ui/DisplayConfig.h>
 #include <ui/DisplayInfo.h>
 #include <ui/DisplayStatInfo.h>
+#include <ui/DisplayState.h>
 #include <ui/HdrCapabilities.h>
 
 #include <utils/Log.h>
@@ -351,22 +353,43 @@
         remote()->transact(BnSurfaceComposer::SET_POWER_MODE, data, &reply);
     }
 
-    virtual status_t getDisplayConfigs(const sp<IBinder>& display,
-            Vector<DisplayInfo>* configs)
-    {
+    virtual status_t getDisplayState(const sp<IBinder>& display, ui::DisplayState* state) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+        data.writeStrongBinder(display);
+        remote()->transact(BnSurfaceComposer::GET_DISPLAY_STATE, data, &reply);
+        const status_t result = reply.readInt32();
+        if (result == NO_ERROR) {
+            memcpy(state, reply.readInplace(sizeof(ui::DisplayState)), sizeof(ui::DisplayState));
+        }
+        return result;
+    }
+
+    virtual status_t getDisplayInfo(const sp<IBinder>& display, DisplayInfo* info) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+        data.writeStrongBinder(display);
+        remote()->transact(BnSurfaceComposer::GET_DISPLAY_INFO, data, &reply);
+        const status_t result = reply.readInt32();
+        if (result == NO_ERROR) {
+            memcpy(info, reply.readInplace(sizeof(DisplayInfo)), sizeof(DisplayInfo));
+        }
+        return result;
+    }
+
+    virtual status_t getDisplayConfigs(const sp<IBinder>& display, Vector<DisplayConfig>* configs) {
         Parcel data, reply;
         data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
         data.writeStrongBinder(display);
         remote()->transact(BnSurfaceComposer::GET_DISPLAY_CONFIGS, data, &reply);
-        status_t result = reply.readInt32();
+        const status_t result = reply.readInt32();
         if (result == NO_ERROR) {
-            size_t numConfigs = reply.readUint32();
+            const size_t numConfigs = reply.readUint32();
             configs->clear();
             configs->resize(numConfigs);
             for (size_t c = 0; c < numConfigs; ++c) {
-                memcpy(&(configs->editItemAt(c)),
-                        reply.readInplace(sizeof(DisplayInfo)),
-                        sizeof(DisplayInfo));
+                memcpy(&(configs->editItemAt(c)), reply.readInplace(sizeof(DisplayConfig)),
+                       sizeof(DisplayConfig));
             }
         }
         return result;
@@ -1297,17 +1320,40 @@
             reply->writeStrongBinder(display);
             return NO_ERROR;
         }
+        case GET_DISPLAY_STATE: {
+            CHECK_INTERFACE(ISurfaceComposer, data, reply);
+            ui::DisplayState state;
+            const sp<IBinder> display = data.readStrongBinder();
+            const status_t result = getDisplayState(display, &state);
+            reply->writeInt32(result);
+            if (result == NO_ERROR) {
+                memcpy(reply->writeInplace(sizeof(ui::DisplayState)), &state,
+                       sizeof(ui::DisplayState));
+            }
+            return NO_ERROR;
+        }
+        case GET_DISPLAY_INFO: {
+            CHECK_INTERFACE(ISurfaceComposer, data, reply);
+            DisplayInfo info;
+            const sp<IBinder> display = data.readStrongBinder();
+            const status_t result = getDisplayInfo(display, &info);
+            reply->writeInt32(result);
+            if (result == NO_ERROR) {
+                memcpy(reply->writeInplace(sizeof(DisplayInfo)), &info, sizeof(DisplayInfo));
+            }
+            return NO_ERROR;
+        }
         case GET_DISPLAY_CONFIGS: {
             CHECK_INTERFACE(ISurfaceComposer, data, reply);
-            Vector<DisplayInfo> configs;
-            sp<IBinder> display = data.readStrongBinder();
-            status_t result = getDisplayConfigs(display, &configs);
+            Vector<DisplayConfig> configs;
+            const sp<IBinder> display = data.readStrongBinder();
+            const status_t result = getDisplayConfigs(display, &configs);
             reply->writeInt32(result);
             if (result == NO_ERROR) {
                 reply->writeUint32(static_cast<uint32_t>(configs.size()));
                 for (size_t c = 0; c < configs.size(); ++c) {
-                    memcpy(reply->writeInplace(sizeof(DisplayInfo)),
-                            &configs[c], sizeof(DisplayInfo));
+                    memcpy(reply->writeInplace(sizeof(DisplayConfig)), &configs[c],
+                           sizeof(DisplayConfig));
                 }
             }
             return NO_ERROR;
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 63dc333..43bccf6 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -31,8 +31,6 @@
 
 #include <system/graphics.h>
 
-#include <ui/DisplayInfo.h>
-
 #include <gui/BufferItemConsumer.h>
 #include <gui/CpuConsumer.h>
 #include <gui/IGraphicBufferProducer.h>
@@ -41,6 +39,7 @@
 #include <gui/LayerState.h>
 #include <gui/Surface.h>
 #include <gui/SurfaceComposerClient.h>
+#include <ui/DisplayConfig.h>
 
 #ifndef NO_INPUT
 #include <input/InputWindow.h>
@@ -1623,15 +1622,23 @@
     return sf->injectVSync(when);
 }
 
-status_t SurfaceComposerClient::getDisplayConfigs(
-        const sp<IBinder>& display, Vector<DisplayInfo>* configs)
-{
+status_t SurfaceComposerClient::getDisplayState(const sp<IBinder>& display,
+                                                ui::DisplayState* state) {
+    return ComposerService::getComposerService()->getDisplayState(display, state);
+}
+
+status_t SurfaceComposerClient::getDisplayInfo(const sp<IBinder>& display, DisplayInfo* info) {
+    return ComposerService::getComposerService()->getDisplayInfo(display, info);
+}
+
+status_t SurfaceComposerClient::getDisplayConfigs(const sp<IBinder>& display,
+                                                  Vector<DisplayConfig>* configs) {
     return ComposerService::getComposerService()->getDisplayConfigs(display, configs);
 }
 
-status_t SurfaceComposerClient::getDisplayInfo(const sp<IBinder>& display,
-        DisplayInfo* info) {
-    Vector<DisplayInfo> configs;
+status_t SurfaceComposerClient::getActiveDisplayConfig(const sp<IBinder>& display,
+                                                       DisplayConfig* config) {
+    Vector<DisplayConfig> configs;
     status_t result = getDisplayConfigs(display, &configs);
     if (result != NO_ERROR) {
         return result;
@@ -1643,7 +1650,7 @@
         return NAME_NOT_FOUND;
     }
 
-    *info = configs[static_cast<size_t>(activeId)];
+    *config = configs[static_cast<size_t>(activeId)];
     return NO_ERROR;
 }
 
diff --git a/libs/gui/include/gui/ISurfaceComposer.h b/libs/gui/include/gui/ISurfaceComposer.h
index 46c9f3a..e860f61 100644
--- a/libs/gui/include/gui/ISurfaceComposer.h
+++ b/libs/gui/include/gui/ISurfaceComposer.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_GUI_ISURFACE_COMPOSER_H
-#define ANDROID_GUI_ISURFACE_COMPOSER_H
+#pragma once
 
 #include <stdint.h>
 #include <sys/types.h>
@@ -46,13 +45,13 @@
 #include <vector>
 
 namespace android {
-// ----------------------------------------------------------------------------
 
 struct client_cache_t;
 struct ComposerState;
-struct DisplayState;
+struct DisplayConfig;
 struct DisplayInfo;
 struct DisplayStatInfo;
+struct DisplayState;
 struct InputWindowCommands;
 class LayerDebugInfo;
 class HdrCapabilities;
@@ -63,6 +62,12 @@
 class Rect;
 enum class FrameEvent;
 
+namespace ui {
+
+struct DisplayState;
+
+} // namespace ui
+
 /*
  * This class defines the Binder IPC interface for accessing various
  * SurfaceFlinger features.
@@ -161,10 +166,6 @@
      */
     virtual void setPowerMode(const sp<IBinder>& display, int mode) = 0;
 
-    /* returns information for each configuration of the given display
-     * intended to be used to get information about built-in displays */
-    virtual status_t getDisplayConfigs(const sp<IBinder>& display,
-            Vector<DisplayInfo>* configs) = 0;
 
     /* returns display statistics for a given display
      * intended to be used by the media framework to properly schedule
@@ -172,8 +173,25 @@
     virtual status_t getDisplayStats(const sp<IBinder>& display,
             DisplayStatInfo* stats) = 0;
 
-    /* indicates which of the configurations returned by getDisplayInfo is
-     * currently active */
+    /**
+     * Get transactional state of given display.
+     */
+    virtual status_t getDisplayState(const sp<IBinder>& display, ui::DisplayState*) = 0;
+
+    /**
+     * Get immutable information about given physical display.
+     */
+    virtual status_t getDisplayInfo(const sp<IBinder>& display, DisplayInfo*) = 0;
+
+    /**
+     * Get configurations supported by given physical display.
+     */
+    virtual status_t getDisplayConfigs(const sp<IBinder>& display, Vector<DisplayConfig>*) = 0;
+
+    /**
+     * Get the index into configurations returned by getDisplayConfigs,
+     * corresponding to the active configuration.
+     */
     virtual int getActiveConfig(const sp<IBinder>& display) = 0;
 
     virtual status_t getDisplayColorModes(const sp<IBinder>& display,
@@ -493,7 +511,7 @@
         // Java by ActivityManagerService.
         BOOT_FINISHED = IBinder::FIRST_CALL_TRANSACTION,
         CREATE_CONNECTION,
-        CREATE_GRAPHIC_BUFFER_ALLOC_UNUSED, // unused, fails permissions check
+        GET_DISPLAY_INFO,
         CREATE_DISPLAY_EVENT_CONNECTION,
         CREATE_DISPLAY,
         DESTROY_DISPLAY,
@@ -503,7 +521,7 @@
         GET_SUPPORTED_FRAME_TIMESTAMPS,
         GET_DISPLAY_CONFIGS,
         GET_ACTIVE_CONFIG,
-        CONNECT_DISPLAY_UNUSED, // unused, fails permissions check
+        GET_DISPLAY_STATE,
         CAPTURE_SCREEN,
         CAPTURE_LAYERS,
         CLEAR_ANIMATION_FRAME_STATS,
@@ -546,8 +564,4 @@
             Parcel* reply, uint32_t flags = 0);
 };
 
-// ----------------------------------------------------------------------------
-
-}; // namespace android
-
-#endif // ANDROID_GUI_ISURFACE_COMPOSER_H
+} // namespace android
diff --git a/libs/gui/include/gui/SurfaceComposerClient.h b/libs/gui/include/gui/SurfaceComposerClient.h
index 08e6a5a..6eec2b7 100644
--- a/libs/gui/include/gui/SurfaceComposerClient.h
+++ b/libs/gui/include/gui/SurfaceComposerClient.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_GUI_SURFACE_COMPOSER_CLIENT_H
-#define ANDROID_GUI_SURFACE_COMPOSER_CLIENT_H
+#pragma once
 
 #include <stdint.h>
 #include <sys/types.h>
@@ -46,17 +45,12 @@
 
 namespace android {
 
-// ---------------------------------------------------------------------------
-
-struct DisplayInfo;
 class HdrCapabilities;
 class ISurfaceComposerClient;
 class IGraphicBufferProducer;
 class IRegionSamplingListener;
 class Region;
 
-// ---------------------------------------------------------------------------
-
 struct SurfaceControlStats {
     SurfaceControlStats(const sp<SurfaceControl>& sc, nsecs_t time,
                         const sp<Fence>& prevReleaseFence, uint32_t hint)
@@ -102,18 +96,21 @@
     status_t linkToComposerDeath(const sp<IBinder::DeathRecipient>& recipient,
             void* cookie = nullptr, uint32_t flags = 0);
 
-    // Get a list of supported configurations for a given display
-    static status_t getDisplayConfigs(const sp<IBinder>& display,
-            Vector<DisplayInfo>* configs);
+    // Get transactional state of given display.
+    static status_t getDisplayState(const sp<IBinder>& display, ui::DisplayState*);
 
-    // Get the DisplayInfo for the currently-active configuration
-    static status_t getDisplayInfo(const sp<IBinder>& display,
-            DisplayInfo* info);
+    // Get immutable information about given physical display.
+    static status_t getDisplayInfo(const sp<IBinder>& display, DisplayInfo*);
 
-    // Get the index of the current active configuration (relative to the list
-    // returned by getDisplayInfo)
+    // Get configurations supported by given physical display.
+    static status_t getDisplayConfigs(const sp<IBinder>& display, Vector<DisplayConfig>*);
+
+    // Get the ID of the active DisplayConfig, as getDisplayConfigs index.
     static int getActiveConfig(const sp<IBinder>& display);
 
+    // Shorthand for getDisplayConfigs element at getActiveConfig index.
+    static status_t getActiveDisplayConfig(const sp<IBinder>& display, DisplayConfig*);
+
     // Sets the refresh rate boundaries for display configuration.
     // For all other parameters, default configuration is used. The index for the default is
     // corresponting to the configs returned from getDisplayConfigs().
@@ -644,8 +641,4 @@
     void onTransactionCompleted(ListenerStats stats) override;
 };
 
-// ---------------------------------------------------------------------------
-
-}; // namespace android
-
-#endif // ANDROID_GUI_SURFACE_COMPOSER_CLIENT_H
+} // namespace android
diff --git a/libs/gui/tests/BLASTBufferQueue_test.cpp b/libs/gui/tests/BLASTBufferQueue_test.cpp
index 41f0d40..a273914 100644
--- a/libs/gui/tests/BLASTBufferQueue_test.cpp
+++ b/libs/gui/tests/BLASTBufferQueue_test.cpp
@@ -25,7 +25,7 @@
 #include <gui/IProducerListener.h>
 #include <gui/SurfaceComposerClient.h>
 #include <private/gui/ComposerService.h>
-#include <ui/DisplayInfo.h>
+#include <ui/DisplayConfig.h>
 #include <ui/GraphicBuffer.h>
 #include <ui/GraphicTypes.h>
 #include <ui/Transform.h>
@@ -103,10 +103,11 @@
         t.apply();
         t.clear();
 
-        DisplayInfo info;
-        ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getDisplayInfo(mDisplayToken, &info));
-        mDisplayWidth = info.w;
-        mDisplayHeight = info.h;
+        DisplayConfig config;
+        ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayConfig(mDisplayToken, &config));
+        const ui::Size& resolution = config.resolution;
+        mDisplayWidth = resolution.getWidth();
+        mDisplayHeight = resolution.getHeight();
 
         mSurfaceControl = mClient->createSurface(String8("TestSurface"), mDisplayWidth,
                                                  mDisplayHeight, PIXEL_FORMAT_RGBA_8888,
@@ -114,7 +115,7 @@
                                                  /*parent*/ nullptr);
         t.setLayerStack(mSurfaceControl, 0)
                 .setLayer(mSurfaceControl, std::numeric_limits<int32_t>::max())
-                .setFrame(mSurfaceControl, Rect(0, 0, mDisplayWidth, mDisplayHeight))
+                .setFrame(mSurfaceControl, Rect(resolution))
                 .show(mSurfaceControl)
                 .setDataspace(mSurfaceControl, ui::Dataspace::V0_SRGB)
                 .apply();
diff --git a/libs/gui/tests/EndToEndNativeInputTest.cpp b/libs/gui/tests/EndToEndNativeInputTest.cpp
index 04749e6..1a623e2 100644
--- a/libs/gui/tests/EndToEndNativeInputTest.cpp
+++ b/libs/gui/tests/EndToEndNativeInputTest.cpp
@@ -41,7 +41,7 @@
 #include <input/InputTransport.h>
 #include <input/Input.h>
 
-#include <ui/DisplayInfo.h>
+#include <ui/DisplayConfig.h>
 #include <ui/Rect.h>
 #include <ui/Region.h>
 
@@ -223,13 +223,13 @@
         const auto display = mComposerClient->getInternalDisplayToken();
         ASSERT_NE(display, nullptr);
 
-        DisplayInfo info;
-        ASSERT_EQ(NO_ERROR, mComposerClient->getDisplayInfo(display, &info));
+        DisplayConfig config;
+        ASSERT_EQ(NO_ERROR, mComposerClient->getActiveDisplayConfig(display, &config));
 
         // After a new buffer is queued, SurfaceFlinger is notified and will
         // latch the new buffer on next vsync.  Let's heuristically wait for 3
         // vsyncs.
-        mBufferPostDelay = int32_t(1e6 / info.fps) * 3;
+        mBufferPostDelay = static_cast<int32_t>(1e6 / config.refreshRate) * 3;
     }
 
     void TearDown() {
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index 25c032f..70fd888 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -718,8 +718,15 @@
     }
 
     void setPowerMode(const sp<IBinder>& /*display*/, int /*mode*/) override {}
-    status_t getDisplayConfigs(const sp<IBinder>& /*display*/,
-            Vector<DisplayInfo>* /*configs*/) override { return NO_ERROR; }
+    status_t getDisplayInfo(const sp<IBinder>& /*display*/, DisplayInfo*) override {
+        return NO_ERROR;
+    }
+    status_t getDisplayConfigs(const sp<IBinder>& /*display*/, Vector<DisplayConfig>*) override {
+        return NO_ERROR;
+    }
+    status_t getDisplayState(const sp<IBinder>& /*display*/, ui::DisplayState*) override {
+        return NO_ERROR;
+    }
     status_t getDisplayStats(const sp<IBinder>& /*display*/,
             DisplayStatInfo* /*stats*/) override { return NO_ERROR; }
     int getActiveConfig(const sp<IBinder>& /*display*/) override { return 0; }
diff --git a/libs/nativedisplay/ADisplay.cpp b/libs/nativedisplay/ADisplay.cpp
index 1e25049..277635c 100644
--- a/libs/nativedisplay/ADisplay.cpp
+++ b/libs/nativedisplay/ADisplay.cpp
@@ -16,6 +16,7 @@
 
 #include <apex/display.h>
 #include <gui/SurfaceComposerClient.h>
+#include <ui/DisplayConfig.h>
 #include <ui/DisplayInfo.h>
 #include <ui/GraphicTypes.h>
 #include <ui/PixelFormat.h>
@@ -116,17 +117,12 @@
     LOG_ALWAYS_FATAL_IF(name == nullptr, "nullptr passed as " #name " argument");
 
 namespace {
+
 sp<IBinder> getToken(ADisplay* display) {
     DisplayImpl* impl = reinterpret_cast<DisplayImpl*>(display);
     return SurfaceComposerClient::getPhysicalDisplayToken(impl->id);
 }
 
-int64_t computeSfOffset(const DisplayInfo& info) {
-    // This should probably be part of the config instead of extrapolated from
-    // the presentation deadline and fudged here, but the way the math works out
-    // here we do get the right offset.
-    return static_cast<int64_t>((1000000000 / info.fps) - info.presentationDeadline + 1000000);
-}
 } // namespace
 
 namespace android {
@@ -142,9 +138,16 @@
     int numConfigs = 0;
     for (int i = 0; i < size; ++i) {
         const sp<IBinder> token = SurfaceComposerClient::getPhysicalDisplayToken(ids[i]);
-        Vector<DisplayInfo> configs;
-        const status_t status = SurfaceComposerClient::getDisplayConfigs(token, &configs);
-        if (status != OK) {
+
+        DisplayInfo info;
+        if (const status_t status = SurfaceComposerClient::getDisplayInfo(token, &info);
+            status != OK) {
+            return status;
+        }
+
+        Vector<DisplayConfig> configs;
+        if (const status_t status = SurfaceComposerClient::getDisplayConfigs(token, &configs);
+            status != OK) {
             return status;
         }
         if (configs.empty()) {
@@ -154,11 +157,11 @@
         numConfigs += configs.size();
         configsPerDisplay[i].reserve(configs.size());
         for (int j = 0; j < configs.size(); ++j) {
-            const DisplayInfo config = configs[j];
+            const DisplayConfig& config = configs[j];
             configsPerDisplay[i].emplace_back(
-                    DisplayConfigImpl{static_cast<int32_t>(config.w),
-                                      static_cast<int32_t>(config.h), config.density, config.fps,
-                                      computeSfOffset(config), config.appVsyncOffset});
+                    DisplayConfigImpl{config.resolution.getWidth(), config.resolution.getHeight(),
+                                      info.density, config.refreshRate, config.sfVsyncOffset,
+                                      config.appVsyncOffset});
         }
     }
 
diff --git a/libs/ui/include/ui/DisplayConfig.h b/libs/ui/include/ui/DisplayConfig.h
new file mode 100644
index 0000000..09b8211
--- /dev/null
+++ b/libs/ui/include/ui/DisplayConfig.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <type_traits>
+
+#include <ui/Size.h>
+#include <utils/Timers.h>
+
+namespace android {
+
+// Configuration supported by physical display.
+struct DisplayConfig {
+    ui::Size resolution;
+    float xDpi = 0;
+    float yDpi = 0;
+
+    float refreshRate = 0;
+    nsecs_t appVsyncOffset = 0;
+    nsecs_t sfVsyncOffset = 0;
+    nsecs_t presentationDeadline = 0;
+};
+
+static_assert(std::is_trivially_copyable_v<DisplayConfig>);
+
+} // namespace android
diff --git a/libs/ui/include/ui/DisplayInfo.h b/libs/ui/include/ui/DisplayInfo.h
index 38f8d6b..7773319 100644
--- a/libs/ui/include/ui/DisplayInfo.h
+++ b/libs/ui/include/ui/DisplayInfo.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2007 The Android Open Source Project
+ * Copyright 2019 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,35 +14,18 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_UI_DISPLAY_INFO_H
-#define ANDROID_UI_DISPLAY_INFO_H
+#pragma once
 
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <ui/Rotation.h>
-#include <utils/Timers.h>
+#include <type_traits>
 
 namespace android {
 
-constexpr uint32_t NO_LAYER_STACK = static_cast<uint32_t>(-1);
-
+// Immutable information about physical display.
 struct DisplayInfo {
-    uint32_t w{0};
-    uint32_t h{0};
-    float xdpi{0};
-    float ydpi{0};
-    float fps{0};
-    float density{0};
-    ui::Rotation orientation{ui::ROTATION_0};
-    bool secure{false};
-    nsecs_t appVsyncOffset{0};
-    nsecs_t presentationDeadline{0};
-    uint32_t viewportW{0};
-    uint32_t viewportH{0};
-    uint32_t layerStack{NO_LAYER_STACK};
+    float density = 0.f;
+    bool secure = false;
 };
 
-} // namespace android
+static_assert(std::is_trivially_copyable_v<DisplayInfo>);
 
-#endif // ANDROID_COMPOSER_DISPLAY_INFO_H
+} // namespace android
diff --git a/libs/ui/include/ui/DisplayState.h b/libs/ui/include/ui/DisplayState.h
new file mode 100644
index 0000000..64efc84
--- /dev/null
+++ b/libs/ui/include/ui/DisplayState.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <ui/Rotation.h>
+#include <ui/Size.h>
+
+#include <cstdint>
+#include <type_traits>
+
+namespace android::ui {
+
+using LayerStack = uint32_t;
+constexpr LayerStack NO_LAYER_STACK = static_cast<LayerStack>(-1);
+
+// Transactional state of physical or virtual display. Note that libgui defines
+// android::DisplayState as a superset of android::ui::DisplayState.
+struct DisplayState {
+    LayerStack layerStack = NO_LAYER_STACK;
+    Rotation orientation = ROTATION_0;
+    Size viewport;
+};
+
+static_assert(std::is_trivially_copyable_v<DisplayState>);
+
+} // namespace android::ui
diff --git a/libs/ui/include_vndk/ui/DisplayConfig.h b/libs/ui/include_vndk/ui/DisplayConfig.h
new file mode 120000
index 0000000..1450319
--- /dev/null
+++ b/libs/ui/include_vndk/ui/DisplayConfig.h
@@ -0,0 +1 @@
+../../include/ui/DisplayConfig.h
\ No newline at end of file
diff --git a/libs/ui/include_vndk/ui/DisplayState.h b/libs/ui/include_vndk/ui/DisplayState.h
new file mode 120000
index 0000000..4e92849
--- /dev/null
+++ b/libs/ui/include_vndk/ui/DisplayState.h
@@ -0,0 +1 @@
+../../include/ui/DisplayState.h
\ No newline at end of file