diff --git a/cmds/installd/dexopt.cpp b/cmds/installd/dexopt.cpp
index baa05d0..685fdd8 100644
--- a/cmds/installd/dexopt.cpp
+++ b/cmds/installd/dexopt.cpp
@@ -990,14 +990,22 @@
   return oat_dir == nullptr || oat_dir[0] == '!';
 }
 
+// Best-effort check whether we can fit the the path into our buffers.
+// Note: the cache path will require an additional 5 bytes for ".swap", but we'll try to run
+// without a swap file, if necessary. Reference profiles file also add an extra ".prof"
+// extension to the cache path (5 bytes).
+// TODO(calin): move away from char* buffers and PKG_PATH_MAX.
+static bool validate_dex_path_size(const std::string& dex_path) {
+    if (dex_path.size() >= (PKG_PATH_MAX - 8)) {
+        LOG(ERROR) << "dex_path too long: " << dex_path;
+        return false;
+    }
+    return true;
+}
+
 static bool create_oat_out_path(const char* apk_path, const char* instruction_set,
             const char* oat_dir, bool is_secondary_dex, /*out*/ char* out_oat_path) {
-    // Early best-effort check whether we can fit the the path into our buffers.
-    // Note: the cache path will require an additional 5 bytes for ".swap", but we'll try to run
-    // without a swap file, if necessary. Reference profiles file also add an extra ".prof"
-    // extension to the cache path (5 bytes).
-    if (strlen(apk_path) >= (PKG_PATH_MAX - 8)) {
-        ALOGE("apk_path too long '%s'\n", apk_path);
+    if (!validate_dex_path_size(apk_path)) {
         return false;
     }
 
@@ -1350,33 +1358,29 @@
 // The analyzer will check if the dex_file needs to be (re)compiled to match the compiler_filter.
 // If this is for a profile guided compilation, profile_was_updated will tell whether or not
 // the profile has changed.
-static void exec_dexoptanalyzer(const std::string& dex_file, const char* instruction_set,
-        const char* compiler_filter, bool profile_was_updated) {
+static void exec_dexoptanalyzer(const std::string& dex_file, const std::string& instruction_set,
+        const std::string& compiler_filter, bool profile_was_updated) {
     static const char* DEXOPTANALYZER_BIN = "/system/bin/dexoptanalyzer";
     static const unsigned int MAX_INSTRUCTION_SET_LEN = 7;
 
-    if (strlen(instruction_set) >= MAX_INSTRUCTION_SET_LEN) {
-        ALOGE("Instruction set %s longer than max length of %d",
-              instruction_set, MAX_INSTRUCTION_SET_LEN);
+    if (instruction_set.size() >= MAX_INSTRUCTION_SET_LEN) {
+        LOG(ERROR) << "Instruction set " << instruction_set
+                << " longer than max length of " << MAX_INSTRUCTION_SET_LEN;
         return;
     }
 
-    char dex_file_arg[strlen("--dex-file=") + PKG_PATH_MAX];
-    char isa_arg[strlen("--isa=") + MAX_INSTRUCTION_SET_LEN];
-    char compiler_filter_arg[strlen("--compiler-filter=") + kPropertyValueMax];
+    std::string dex_file_arg = "--dex-file=" + dex_file;
+    std::string isa_arg = "--isa=" + instruction_set;
+    std::string compiler_filter_arg = "--compiler-filter=" + compiler_filter;
     const char* assume_profile_changed = "--assume-profile-changed";
 
-    sprintf(dex_file_arg, "--dex-file=%s", dex_file.c_str());
-    sprintf(isa_arg, "--isa=%s", instruction_set);
-    sprintf(compiler_filter_arg, "--compiler-filter=%s", compiler_filter);
-
     // program name, dex file, isa, filter, the final NULL
     const char* argv[5 + (profile_was_updated ? 1 : 0)];
     int i = 0;
     argv[i++] = DEXOPTANALYZER_BIN;
-    argv[i++] = dex_file_arg;
-    argv[i++] = isa_arg;
-    argv[i++] = compiler_filter_arg;
+    argv[i++] = dex_file_arg.c_str();
+    argv[i++] = isa_arg.c_str();
+    argv[i++] = compiler_filter_arg.c_str();
     if (profile_was_updated) {
         argv[i++] = assume_profile_changed;
     }
@@ -1490,6 +1494,9 @@
         }
     }
     const std::string& dex_path = *dex_path_out;
+    if (!validate_dex_path_size(dex_path)) {
+        return false;
+    }
     if (!validate_secondary_dex_path(pkgname, dex_path, volume_uuid, uid, storage_flag)) {
         LOG(ERROR) << "Could not validate secondary dex path " << dex_path;
         return false;
@@ -1560,6 +1567,10 @@
         LOG_FATAL("dexopt flags contains unknown fields\n");
     }
 
+    if (!validate_dex_path_size(dex_path)) {
+        return false;
+    }
+
     bool is_public = (dexopt_flags & DEXOPT_PUBLIC) != 0;
     bool debuggable = (dexopt_flags & DEXOPT_DEBUGGABLE) != 0;
     bool boot_complete = (dexopt_flags & DEXOPT_BOOTCOMPLETE) != 0;
@@ -1749,6 +1760,10 @@
         /*out*/bool* out_secondary_dex_exists) {
     // Set out to false to start with, just in case we have validation errors.
     *out_secondary_dex_exists = false;
+    if (!validate_dex_path_size(dex_path)) {
+        return false;
+    }
+
     if (isas.size() == 0) {
         LOG(ERROR) << "reconcile_secondary_dex_file called with empty isas vector";
         return false;
diff --git a/cmds/installd/installd_constants.h b/cmds/installd/installd_constants.h
index 6a81cfc..2597c79 100644
--- a/cmds/installd/installd_constants.h
+++ b/cmds/installd/installd_constants.h
@@ -31,7 +31,7 @@
 constexpr const char* DALVIK_CACHE_POSTFIX = "@classes.dex";
 
 constexpr size_t PKG_NAME_MAX = 128u;   /* largest allowed package name */
-constexpr size_t PKG_PATH_MAX = 256u;   /* max size of any path we use */
+constexpr size_t PKG_PATH_MAX = 1024u;  /* max size of any path we use */
 
 /****************************************************************************
  * IMPORTANT: These values are passed from Java code. Keep them in sync with
diff --git a/cmds/servicemanager/servicemanager.rc b/cmds/servicemanager/servicemanager.rc
index aec211a..d336a43 100644
--- a/cmds/servicemanager/servicemanager.rc
+++ b/cmds/servicemanager/servicemanager.rc
@@ -12,3 +12,4 @@
     onrestart restart drm
     onrestart restart cameraserver
     writepid /dev/cpuset/system-background/tasks
+    shutdown critical
diff --git a/cmds/servicemanager/vndservicemanager.rc b/cmds/servicemanager/vndservicemanager.rc
index d5ddaaf..3fa4d7d 100644
--- a/cmds/servicemanager/vndservicemanager.rc
+++ b/cmds/servicemanager/vndservicemanager.rc
@@ -3,4 +3,4 @@
     user system
     group system readproc
     writepid /dev/cpuset/system-background/tasks
-
+    shutdown critical
diff --git a/headers/Android.bp b/headers/Android.bp
index 1ea1ea5..bcbbbc3 100644
--- a/headers/Android.bp
+++ b/headers/Android.bp
@@ -1,5 +1,6 @@
 cc_library_headers {
     name: "media_plugin_headers",
+    vendor_available: true,
     export_include_dirs: ["media_plugin"],
     header_libs: [
         "libstagefright_headers",
diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index 853ca16..bef9505 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp
@@ -15,6 +15,13 @@
 //
 
 cc_test {
+    name: "binderDriverInterfaceTest_IPC_32",
+    srcs: ["binderDriverInterfaceTest.cpp"],
+    compile_multilib: "32",
+    cflags: ["-DBINDER_IPC_32BIT=1"],
+}
+
+cc_test {
     product_variables: {
         binder32bit: {
             cflags: ["-DBINDER_IPC_32BIT=1"],
diff --git a/libs/input/Android.bp b/libs/input/Android.bp
index 9294419..2f39976 100644
--- a/libs/input/Android.bp
+++ b/libs/input/Android.bp
@@ -34,6 +34,7 @@
     clang: true,
 
     shared_libs: [
+        "libbase",
         "liblog",
         "libcutils",
     ],
diff --git a/libs/input/VelocityTracker.cpp b/libs/input/VelocityTracker.cpp
index 7f6b157..b174fa8 100644
--- a/libs/input/VelocityTracker.cpp
+++ b/libs/input/VelocityTracker.cpp
@@ -23,13 +23,14 @@
 // Log debug messages about the progress of the algorithm itself.
 #define DEBUG_STRATEGY 0
 
-#include <math.h>
+#include <inttypes.h>
 #include <limits.h>
+#include <math.h>
 
+#include <android-base/stringprintf.h>
 #include <cutils/properties.h>
 #include <input/VelocityTracker.h>
 #include <utils/BitSet.h>
-#include <utils/String8.h>
 #include <utils/Timers.h>
 
 namespace android {
@@ -46,8 +47,7 @@
 
 static float vectorDot(const float* a, const float* b, uint32_t m) {
     float r = 0;
-    while (m) {
-        m--;
+    for (size_t i = 0; i < m; i++) {
         r += *(a++) * *(b++);
     }
     return r;
@@ -55,8 +55,7 @@
 
 static float vectorNorm(const float* a, uint32_t m) {
     float r = 0;
-    while (m) {
-        m--;
+    for (size_t i = 0; i < m; i++) {
         float t = *(a++);
         r += t * t;
     }
@@ -64,36 +63,36 @@
 }
 
 #if DEBUG_STRATEGY || DEBUG_VELOCITY
-static String8 vectorToString(const float* a, uint32_t m) {
-    String8 str;
-    str.append("[");
-    while (m--) {
-        str.appendFormat(" %f", *(a++));
-        if (m) {
-            str.append(",");
+static std::string vectorToString(const float* a, uint32_t m) {
+    std::string str;
+    str += "[";
+    for (size_t i = 0; i < m; i++) {
+        if (i) {
+            str += ",";
         }
+        str += android::base::StringPrintf(" %f", *(a++));
     }
-    str.append(" ]");
+    str += " ]";
     return str;
 }
 
-static String8 matrixToString(const float* a, uint32_t m, uint32_t n, bool rowMajor) {
-    String8 str;
-    str.append("[");
+static std::string matrixToString(const float* a, uint32_t m, uint32_t n, bool rowMajor) {
+    std::string str;
+    str = "[";
     for (size_t i = 0; i < m; i++) {
         if (i) {
-            str.append(",");
+            str += ",";
         }
-        str.append(" [");
+        str += " [";
         for (size_t j = 0; j < n; j++) {
             if (j) {
-                str.append(",");
+                str += ",";
             }
-            str.appendFormat(" %f", a[rowMajor ? i * n + j : j * m + i]);
+            str += android::base::StringPrintf(" %f", a[rowMajor ? i * n + j : j * m + i]);
         }
-        str.append(" ]");
+        str += " ]";
     }
-    str.append(" ]");
+    str += " ]";
     return str;
 }
 #endif
@@ -244,7 +243,7 @@
     mStrategy->addMovement(eventTime, idBits, positions);
 
 #if DEBUG_VELOCITY
-    ALOGD("VelocityTracker: addMovement eventTime=%lld, idBits=0x%08x, activePointerId=%d",
+    ALOGD("VelocityTracker: addMovement eventTime=%" PRId64 ", idBits=0x%08x, activePointerId=%d",
             eventTime, idBits.value, mActivePointerId);
     for (BitSet32 iterBits(idBits); !iterBits.isEmpty(); ) {
         uint32_t id = iterBits.firstMarkedBit();
@@ -256,8 +255,8 @@
                 "estimator (degree=%d, xCoeff=%s, yCoeff=%s, confidence=%f)",
                 id, positions[index].x, positions[index].y,
                 int(estimator.degree),
-                vectorToString(estimator.xCoeff, estimator.degree + 1).string(),
-                vectorToString(estimator.yCoeff, estimator.degree + 1).string(),
+                vectorToString(estimator.xCoeff, estimator.degree + 1).c_str(),
+                vectorToString(estimator.yCoeff, estimator.degree + 1).c_str(),
                 estimator.confidence);
     }
 #endif
@@ -443,8 +442,8 @@
         const float* w, uint32_t m, uint32_t n, float* outB, float* outDet) {
 #if DEBUG_STRATEGY
     ALOGD("solveLeastSquares: m=%d, n=%d, x=%s, y=%s, w=%s", int(m), int(n),
-            vectorToString(x, m).string(), vectorToString(y, m).string(),
-            vectorToString(w, m).string());
+            vectorToString(x, m).c_str(), vectorToString(y, m).c_str(),
+            vectorToString(w, m).c_str());
 #endif
 
     // Expand the X vector to a matrix A, pre-multiplied by the weights.
@@ -456,7 +455,7 @@
         }
     }
 #if DEBUG_STRATEGY
-    ALOGD("  - a=%s", matrixToString(&a[0][0], m, n, false /*rowMajor*/).string());
+    ALOGD("  - a=%s", matrixToString(&a[0][0], m, n, false /*rowMajor*/).c_str());
 #endif
 
     // Apply the Gram-Schmidt process to A to obtain its QR decomposition.
@@ -491,8 +490,8 @@
         }
     }
 #if DEBUG_STRATEGY
-    ALOGD("  - q=%s", matrixToString(&q[0][0], m, n, false /*rowMajor*/).string());
-    ALOGD("  - r=%s", matrixToString(&r[0][0], n, n, true /*rowMajor*/).string());
+    ALOGD("  - q=%s", matrixToString(&q[0][0], m, n, false /*rowMajor*/).c_str());
+    ALOGD("  - r=%s", matrixToString(&r[0][0], n, n, true /*rowMajor*/).c_str());
 
     // calculate QR, if we factored A correctly then QR should equal A
     float qr[n][m];
@@ -504,7 +503,7 @@
             }
         }
     }
-    ALOGD("  - qr=%s", matrixToString(&qr[0][0], m, n, false /*rowMajor*/).string());
+    ALOGD("  - qr=%s", matrixToString(&qr[0][0], m, n, false /*rowMajor*/).c_str());
 #endif
 
     // Solve R B = Qt W Y to find B.  This is easy because R is upper triangular.
@@ -522,7 +521,7 @@
         outB[i] /= r[i][i];
     }
 #if DEBUG_STRATEGY
-    ALOGD("  - b=%s", vectorToString(outB, n).string());
+    ALOGD("  - b=%s", vectorToString(outB, n).c_str());
 #endif
 
     // Calculate the coefficient of determination as 1 - (SSerr / SStot) where
@@ -608,8 +607,8 @@
 #if DEBUG_STRATEGY
             ALOGD("estimate: degree=%d, xCoeff=%s, yCoeff=%s, confidence=%f",
                     int(outEstimator->degree),
-                    vectorToString(outEstimator->xCoeff, n).string(),
-                    vectorToString(outEstimator->yCoeff, n).string(),
+                    vectorToString(outEstimator->xCoeff, n).c_str(),
+                    vectorToString(outEstimator->yCoeff, n).c_str(),
                     outEstimator->confidence);
 #endif
             return true;
diff --git a/libs/sensor/ISensorEventConnection.cpp b/libs/sensor/ISensorEventConnection.cpp
index 8a3a623..1cd8e01 100644
--- a/libs/sensor/ISensorEventConnection.cpp
+++ b/libs/sensor/ISensorEventConnection.cpp
@@ -36,7 +36,8 @@
     ENABLE_DISABLE,
     SET_EVENT_RATE,
     FLUSH_SENSOR,
-    CONFIGURE_CHANNEL
+    CONFIGURE_CHANNEL,
+    DESTROY,
 };
 
 class BpSensorEventConnection : public BpInterface<ISensorEventConnection>
@@ -96,11 +97,22 @@
         remote()->transact(CONFIGURE_CHANNEL, data, &reply);
         return reply.readInt32();
     }
+
+    virtual void onLastStrongRef(const void* id) {
+        destroy();
+        BpInterface<ISensorEventConnection>::onLastStrongRef(id);
+    }
+
+protected:
+    virtual void destroy() {
+        Parcel data, reply;
+        remote()->transact(DESTROY, data, &reply);
+    }
 };
 
 // Out-of-line virtual method definition to trigger vtable emission in this
 // translation unit (see clang warning -Wweak-vtables)
-BpSensorEventConnection::~BpSensorEventConnection() {}
+BpSensorEventConnection::~BpSensorEventConnection() { }
 
 IMPLEMENT_META_INTERFACE(SensorEventConnection, "android.gui.SensorEventConnection");
 
@@ -150,6 +162,10 @@
             reply->writeInt32(result);
             return NO_ERROR;
         }
+        case DESTROY: {
+            destroy();
+            return NO_ERROR;
+        }
 
     }
     return BBinder::onTransact(code, data, reply, flags);
diff --git a/libs/sensor/include/sensor/ISensorEventConnection.h b/libs/sensor/include/sensor/ISensorEventConnection.h
index 07cc7e8..b62e18c 100644
--- a/libs/sensor/include/sensor/ISensorEventConnection.h
+++ b/libs/sensor/include/sensor/ISensorEventConnection.h
@@ -42,6 +42,8 @@
     virtual status_t setEventRate(int handle, nsecs_t ns) = 0;
     virtual status_t flush() = 0;
     virtual int32_t configureChannel(int32_t handle, int32_t rateLevel) = 0;
+protected:
+    virtual void destroy() = 0; // synchronously release resource hold by remote object
 };
 
 // ----------------------------------------------------------------------------
diff --git a/libs/vr/libbufferhub/bufferhub_tests.cpp b/libs/vr/libbufferhub/bufferhub_tests.cpp
index fa61c4a..1daa5d6 100644
--- a/libs/vr/libbufferhub/bufferhub_tests.cpp
+++ b/libs/vr/libbufferhub/bufferhub_tests.cpp
@@ -62,6 +62,57 @@
   EXPECT_GE(0, RETRY_EINTR(p->Poll(0)));
 }
 
+TEST_F(LibBufferHubTest, TestStateTransitions) {
+  std::unique_ptr<BufferProducer> p = BufferProducer::Create(
+      kWidth, kHeight, kFormat, kUsage, sizeof(uint64_t));
+  ASSERT_TRUE(p.get() != nullptr);
+  std::unique_ptr<BufferConsumer> c =
+      BufferConsumer::Import(p->CreateConsumer());
+  ASSERT_TRUE(c.get() != nullptr);
+
+  uint64_t context;
+  LocalHandle fence;
+
+  // The producer buffer starts in gained state.
+
+  // Acquire, release, and gain in gained state should fail.
+  EXPECT_EQ(-EBUSY, c->Acquire(&fence, &context));
+  EXPECT_EQ(-EBUSY, c->Release(LocalHandle()));
+  EXPECT_EQ(-EALREADY, p->Gain(&fence));
+
+  // Post in gained state should succeed.
+  EXPECT_EQ(0, p->Post(LocalHandle(), kContext));
+
+  // Post, release, and gain in posted state should fail.
+  EXPECT_EQ(-EBUSY, p->Post(LocalHandle(), kContext));
+  EXPECT_EQ(-EBUSY, c->Release(LocalHandle()));
+  EXPECT_EQ(-EBUSY, p->Gain(&fence));
+
+  // Acquire in posted state should succeed.
+  EXPECT_LE(0, c->Acquire(&fence, &context));
+
+  // Acquire, post, and gain in acquired state should fail.
+  EXPECT_EQ(-EBUSY, c->Acquire(&fence, &context));
+  EXPECT_EQ(-EBUSY, p->Post(LocalHandle(), kContext));
+  EXPECT_EQ(-EBUSY, p->Gain(&fence));
+
+  // Release in acquired state should succeed.
+  EXPECT_EQ(0, c->Release(LocalHandle()));
+
+  // Release, acquire, and post in released state should fail.
+  EXPECT_EQ(-EBUSY, c->Release(LocalHandle()));
+  EXPECT_EQ(-EBUSY, c->Acquire(&fence, &context));
+  EXPECT_EQ(-EBUSY, p->Post(LocalHandle(), kContext));
+
+  // Gain in released state should succeed.
+  EXPECT_EQ(0, p->Gain(&fence));
+
+  // Acquire, release, and gain in gained state should fail.
+  EXPECT_EQ(-EBUSY, c->Acquire(&fence, &context));
+  EXPECT_EQ(-EBUSY, c->Release(LocalHandle()));
+  EXPECT_EQ(-EALREADY, p->Gain(&fence));
+}
+
 TEST_F(LibBufferHubTest, TestWithCustomMetadata) {
   struct Metadata {
     int64_t field1;
diff --git a/libs/vr/libdvr/dvr_buffer_queue.cpp b/libs/vr/libdvr/dvr_buffer_queue.cpp
index aa2ed94..2e1655f 100644
--- a/libs/vr/libdvr/dvr_buffer_queue.cpp
+++ b/libs/vr/libdvr/dvr_buffer_queue.cpp
@@ -313,7 +313,10 @@
 int dvrReadBufferQueueDequeue(DvrReadBufferQueue* read_queue, int timeout,
                               DvrReadBuffer* read_buffer, int* out_fence_fd,
                               void* out_meta, size_t meta_size_bytes) {
-  if (!read_queue || !read_buffer || !out_fence_fd || !out_meta)
+  if (!read_queue || !read_buffer || !out_fence_fd)
+    return -EINVAL;
+
+  if (meta_size_bytes != 0 && !out_meta)
     return -EINVAL;
 
   return read_queue->Dequeue(timeout, read_buffer, out_fence_fd, out_meta,
diff --git a/libs/vr/libdvr/dvr_hardware_composer_client.cpp b/libs/vr/libdvr/dvr_hardware_composer_client.cpp
index 46d72ca..4e87cf6 100644
--- a/libs/vr/libdvr/dvr_hardware_composer_client.cpp
+++ b/libs/vr/libdvr/dvr_hardware_composer_client.cpp
@@ -100,10 +100,13 @@
 }
 
 void dvrHwcClientDestroy(DvrHwcClient* client) {
+  client->composer->clearObserver();
+
   // NOTE: Deleting DvrHwcClient* isn't enough since DvrHwcClient::callback is a
   // shared pointer that could be referenced from a binder thread. But the
   // client callback isn't valid past this calls so that needs to be reset.
   client->callback->Shutdown();
+
   delete client;
 }
 
diff --git a/libs/vr/libdvr/include/dvr/dvr_buffer_queue.h b/libs/vr/libdvr/include/dvr/dvr_buffer_queue.h
index caf208d..95c04f1 100644
--- a/libs/vr/libdvr/include/dvr/dvr_buffer_queue.h
+++ b/libs/vr/libdvr/include/dvr/dvr_buffer_queue.h
@@ -124,6 +124,8 @@
 //     signals the release of underlying buffer. The consumer should wait until
 //     this fence clears before reading data from it.
 // @param out_meta The memory area where a metadata object will be filled.
+//     Can be nullptr iff |meta_size_bytes| is zero (i.e., there is no
+//     metadata).
 // @param meta_size_bytes Size of the metadata object caller expects. If it
 //     doesn't match the size of actually metadata transported by the buffer
 //     queue, the method returns -EINVAL.
diff --git a/libs/vr/libdvr/include/dvr/dvr_pose.h b/libs/vr/libdvr/include/dvr/dvr_pose.h
index 4256cf9..b3df028 100644
--- a/libs/vr/libdvr/include/dvr/dvr_pose.h
+++ b/libs/vr/libdvr/include/dvr/dvr_pose.h
@@ -43,16 +43,24 @@
 } DvrPoseAsync;
 
 enum {
-  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_INVALID = (1ULL << 0),       // This pose is invalid.
+  DVR_POSE_FLAG_INITIALIZING = (1ULL << 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.
+      (1ULL << 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.
+      (1ULL << 3),  // If set the floor height is invalid.
+
+  // Bits that indicate the tracking system state.
+  DVR_POSE_FLAG_SERVICE_EXCEPTION = (1ULL << 32),
+  DVR_POSE_FLAG_FISHEYE_OVER_EXPOSED = (1ULL << 33),
+  DVR_POSE_FLAG_FISHEYE_UNDER_EXPOSED = (1ULL << 34),
+  DVR_POSE_FLAG_COLOR_OVER_EXPOSED = (1ULL << 35),
+  DVR_POSE_FLAG_COLOR_UNDER_EXPOSED = (1ULL << 36),
+  DVR_POSE_FLAG_TOO_FEW_FEATURES_TRACKED = (1ULL << 37)
 };
 
 // Represents a sensor pose sample.
diff --git a/libs/vr/libdvr/tests/dvr_buffer_queue-test.cpp b/libs/vr/libdvr/tests/dvr_buffer_queue-test.cpp
index 5158612..497b1cb 100644
--- a/libs/vr/libdvr/tests/dvr_buffer_queue-test.cpp
+++ b/libs/vr/libdvr/tests/dvr_buffer_queue-test.cpp
@@ -37,15 +37,11 @@
 
  protected:
   void SetUp() override {
-    auto config = ProducerQueueConfigBuilder()
-                      .SetDefaultWidth(kBufferWidth)
-                      .SetDefaultHeight(kBufferHeight)
-                      .SetDefaultFormat(kBufferFormat)
-                      .SetMetadata<TestMeta>()
-                      .Build();
-    write_queue_ =
-        new DvrWriteBufferQueue(ProducerQueue::Create(config, UsagePolicy{}));
-    ASSERT_NE(nullptr, write_queue_);
+    config_builder_ = ProducerQueueConfigBuilder()
+                          .SetDefaultWidth(kBufferWidth)
+                          .SetDefaultHeight(kBufferHeight)
+                          .SetDefaultFormat(kBufferFormat)
+                          .SetMetadata<TestMeta>();
   }
 
   void TearDown() override {
@@ -55,6 +51,12 @@
     }
   }
 
+  void CreateWriteBufferQueue() {
+    write_queue_ = new DvrWriteBufferQueue(
+        ProducerQueue::Create(config_builder_.Build(), UsagePolicy{}));
+    ASSERT_NE(nullptr, write_queue_);
+  }
+
   void AllocateBuffers(size_t buffer_count) {
     auto status = write_queue_->producer_queue()->AllocateBuffers(
         kBufferWidth, kBufferHeight, kLayerCount, kBufferFormat, kBufferUsage,
@@ -73,18 +75,23 @@
              buffer_removed_count_);
   }
 
+  ProducerQueueConfigBuilder config_builder_;
   DvrWriteBufferQueue* write_queue_{nullptr};
   int buffer_available_count_{0};
   int buffer_removed_count_{0};
 };
 
-TEST_F(DvrBufferQueueTest, TestWrite_QueueDestroy) {
+TEST_F(DvrBufferQueueTest, TestWrite_QueueCreateDestroy) {
+  ASSERT_NO_FATAL_FAILURE(CreateWriteBufferQueue());
+
   dvrWriteBufferQueueDestroy(write_queue_);
   write_queue_ = nullptr;
 }
 
 TEST_F(DvrBufferQueueTest, TestWrite_QueueGetCapacity) {
-  AllocateBuffers(kQueueCapacity);
+  ASSERT_NO_FATAL_FAILURE(CreateWriteBufferQueue());
+  ASSERT_NO_FATAL_FAILURE(AllocateBuffers(kQueueCapacity));
+
   size_t capacity = dvrWriteBufferQueueGetCapacity(write_queue_);
 
   ALOGD_IF(TRACE, "TestWrite_QueueGetCapacity, capacity=%zu", capacity);
@@ -92,6 +99,8 @@
 }
 
 TEST_F(DvrBufferQueueTest, TestCreateReadQueueFromWriteQueue) {
+  ASSERT_NO_FATAL_FAILURE(CreateWriteBufferQueue());
+
   DvrReadBufferQueue* read_queue = nullptr;
   int ret = dvrWriteBufferQueueCreateReadQueue(write_queue_, &read_queue);
 
@@ -102,6 +111,8 @@
 }
 
 TEST_F(DvrBufferQueueTest, TestCreateReadQueueFromReadQueue) {
+  ASSERT_NO_FATAL_FAILURE(CreateWriteBufferQueue());
+
   DvrReadBufferQueue* read_queue1 = nullptr;
   DvrReadBufferQueue* read_queue2 = nullptr;
   int ret = dvrWriteBufferQueueCreateReadQueue(write_queue_, &read_queue1);
@@ -119,7 +130,8 @@
 }
 
 TEST_F(DvrBufferQueueTest, CreateEmptyBuffer) {
-  AllocateBuffers(3);
+  ASSERT_NO_FATAL_FAILURE(CreateWriteBufferQueue());
+  ASSERT_NO_FATAL_FAILURE(AllocateBuffers(3));
 
   DvrReadBuffer* read_buffer = nullptr;
   DvrWriteBuffer* write_buffer = nullptr;
@@ -152,6 +164,9 @@
 }
 
 TEST_F(DvrBufferQueueTest, TestDequeuePostDequeueRelease) {
+  ASSERT_NO_FATAL_FAILURE(CreateWriteBufferQueue());
+  ASSERT_NO_FATAL_FAILURE(AllocateBuffers(kQueueCapacity));
+
   static constexpr int kTimeout = 0;
   DvrReadBufferQueue* read_queue = nullptr;
   DvrReadBuffer* rb = nullptr;
@@ -172,8 +187,6 @@
   dvrReadBufferCreateEmpty(&rb);
   ASSERT_NE(nullptr, rb);
 
-  AllocateBuffers(kQueueCapacity);
-
   // Gain buffer for writing.
   ret = dvrWriteBufferQueueDequeue(write_queue_, kTimeout, wb, &fence_fd);
   ASSERT_EQ(0, ret);
@@ -221,6 +234,8 @@
 }
 
 TEST_F(DvrBufferQueueTest, TestGetExternalSurface) {
+  ASSERT_NO_FATAL_FAILURE(CreateWriteBufferQueue());
+
   ANativeWindow* window = nullptr;
 
   // The |write_queue_| doesn't have proper metadata (must be
@@ -251,6 +266,9 @@
 // Before each dequeue operation, we resize the buffer queue and expect the
 // queue always return buffer with desired dimension.
 TEST_F(DvrBufferQueueTest, TestResizeBuffer) {
+  ASSERT_NO_FATAL_FAILURE(CreateWriteBufferQueue());
+  ASSERT_NO_FATAL_FAILURE(AllocateBuffers(kQueueCapacity));
+
   static constexpr int kTimeout = 0;
   int fence_fd = -1;
 
@@ -278,8 +296,6 @@
   dvrWriteBufferCreateEmpty(&wb3);
   ASSERT_NE(nullptr, wb3);
 
-  AllocateBuffers(kQueueCapacity);
-
   // Handle all pending events on the read queue.
   ret = dvrReadBufferQueueHandleEvents(read_queue);
   ASSERT_EQ(0, ret);
@@ -369,6 +385,71 @@
   dvrReadBufferQueueDestroy(read_queue);
 }
 
+TEST_F(DvrBufferQueueTest, DequeueEmptyMetadata) {
+  // Overrides default queue parameters: Empty metadata.
+  config_builder_.SetMetadata<void>();
+  ASSERT_NO_FATAL_FAILURE(CreateWriteBufferQueue());
+  ASSERT_NO_FATAL_FAILURE(AllocateBuffers(1));
+
+  DvrReadBuffer* rb = nullptr;
+  DvrWriteBuffer* wb = nullptr;
+  dvrReadBufferCreateEmpty(&rb);
+  dvrWriteBufferCreateEmpty(&wb);
+
+  DvrReadBufferQueue* read_queue = nullptr;
+  EXPECT_EQ(0, dvrWriteBufferQueueCreateReadQueue(write_queue_, &read_queue));
+
+  const int kTimeoutMs = 0;
+  int fence_fd = -1;
+  EXPECT_EQ(0, dvrWriteBufferQueueDequeue(write_queue_, 0, wb, &fence_fd));
+
+  EXPECT_EQ(0, dvrWriteBufferPost(wb, /*fence=*/-1, nullptr, 0));
+  EXPECT_EQ(0, dvrWriteBufferClear(wb));
+  dvrWriteBufferDestroy(wb);
+  wb = nullptr;
+
+  // When acquire buffer, it's legit to pass nullptr as out_meta iff metadata
+  // size is Zero.
+  EXPECT_EQ(0, dvrReadBufferQueueDequeue(read_queue, kTimeoutMs, rb, &fence_fd,
+                                         nullptr, 0));
+  EXPECT_TRUE(dvrReadBufferIsValid(rb));
+}
+
+TEST_F(DvrBufferQueueTest, DequeueMismatchMetadata) {
+  ASSERT_NO_FATAL_FAILURE(CreateWriteBufferQueue());
+  ASSERT_NO_FATAL_FAILURE(AllocateBuffers(1));
+
+  DvrReadBuffer* rb = nullptr;
+  DvrWriteBuffer* wb = nullptr;
+  dvrReadBufferCreateEmpty(&rb);
+  dvrWriteBufferCreateEmpty(&wb);
+
+  DvrReadBufferQueue* read_queue = nullptr;
+  EXPECT_EQ(0, dvrWriteBufferQueueCreateReadQueue(write_queue_, &read_queue));
+
+  const int kTimeoutMs = 0;
+  int fence_fd = -1;
+  EXPECT_EQ(0, dvrWriteBufferQueueDequeue(write_queue_, 0, wb, &fence_fd));
+
+  TestMeta seq = 42U;
+  EXPECT_EQ(0, dvrWriteBufferPost(wb, /*fence=*/-1, &seq, sizeof(seq)));
+  EXPECT_EQ(0, dvrWriteBufferClear(wb));
+  dvrWriteBufferDestroy(wb);
+  wb = nullptr;
+
+  // Dequeue with wrong metadata will cause EINVAL.
+  int8_t wrong_metadata;
+  EXPECT_EQ(-EINVAL,
+            dvrReadBufferQueueDequeue(read_queue, kTimeoutMs, rb, &fence_fd,
+                                      &wrong_metadata, sizeof(wrong_metadata)));
+  EXPECT_FALSE(dvrReadBufferIsValid(rb));
+
+  // Dequeue with empty metadata will cause EINVAL.
+  EXPECT_EQ(-EINVAL, dvrReadBufferQueueDequeue(read_queue, kTimeoutMs, rb,
+                                               &fence_fd, nullptr, 0));
+  EXPECT_FALSE(dvrReadBufferIsValid(rb));
+}
+
 }  // namespace
 
 }  // namespace dvr
diff --git a/libs/vr/libvrflinger/display_surface.cpp b/libs/vr/libvrflinger/display_surface.cpp
index 6e18781..04e3d5f 100644
--- a/libs/vr/libvrflinger/display_surface.cpp
+++ b/libs/vr/libvrflinger/display_surface.cpp
@@ -248,11 +248,12 @@
            "ApplicationDisplaySurface::OnQueueEvent: queue_id=%d events=%x",
            consumer_queue->id(), events);
 
+  std::lock_guard<std::mutex> autolock(lock_);
+
   // Always give the queue a chance to handle its internal bookkeeping.
   consumer_queue->HandleQueueEvents();
 
   // Check for hangup and remove a queue that is no longer needed.
-  std::lock_guard<std::mutex> autolock(lock_);
   if (consumer_queue->hung_up()) {
     ALOGD_IF(TRACE, "ApplicationDisplaySurface::OnQueueEvent: Removing queue.");
     UnregisterQueue(consumer_queue);
@@ -317,11 +318,12 @@
   ALOGD_IF(TRACE, "DirectDisplaySurface::OnQueueEvent: queue_id=%d events=%x",
            consumer_queue->id(), events);
 
+  std::lock_guard<std::mutex> autolock(lock_);
+
   // Always give the queue a chance to handle its internal bookkeeping.
   consumer_queue->HandleQueueEvents();
 
   // Check for hangup and remove a queue that is no longer needed.
-  std::lock_guard<std::mutex> autolock(lock_);
   if (consumer_queue->hung_up()) {
     ALOGD_IF(TRACE, "DirectDisplaySurface::OnQueueEvent: Removing queue.");
     UnregisterQueue(consumer_queue);
diff --git a/services/sensorservice/SensorDirectConnection.cpp b/services/sensorservice/SensorDirectConnection.cpp
index 870635b..538d728 100644
--- a/services/sensorservice/SensorDirectConnection.cpp
+++ b/services/sensorservice/SensorDirectConnection.cpp
@@ -27,12 +27,21 @@
         const String16& opPackageName)
         : mService(service), mUid(uid), mMem(*mem),
         mHalChannelHandle(halChannelHandle),
-        mOpPackageName(opPackageName) {
+        mOpPackageName(opPackageName), mDestroyed(false) {
     ALOGD_IF(DEBUG_CONNECTIONS, "Created SensorDirectConnection");
 }
 
 SensorService::SensorDirectConnection::~SensorDirectConnection() {
     ALOGD_IF(DEBUG_CONNECTIONS, "~SensorDirectConnection %p", this);
+    destroy();
+}
+
+void SensorService::SensorDirectConnection::destroy() {
+    Mutex::Autolock _l(mDestroyLock);
+    // destroy once only
+    if (mDestroyed) {
+        return;
+    }
 
     stopAll();
     mService->cleanupConnection(this);
@@ -40,6 +49,7 @@
         native_handle_close(mMem.handle);
         native_handle_delete(const_cast<struct native_handle*>(mMem.handle));
     }
+    mDestroyed = true;
 }
 
 void SensorService::SensorDirectConnection::onFirstRef() {
diff --git a/services/sensorservice/SensorDirectConnection.h b/services/sensorservice/SensorDirectConnection.h
index 27458d4..5c398a8 100644
--- a/services/sensorservice/SensorDirectConnection.h
+++ b/services/sensorservice/SensorDirectConnection.h
@@ -47,7 +47,7 @@
     // stop all active sensor report. if backupRecord is set to false,
     // those report can be recovered by recoverAll
     // called by SensorService when enter restricted mode
-    void stopAll(bool clearRecord = false);
+    void stopAll(bool backupRecord = false);
 
     // recover sensor reports previously stopped by stopAll(true)
     // called by SensorService when return to NORMAL mode.
@@ -63,7 +63,7 @@
     virtual status_t setEventRate(int handle, nsecs_t samplingPeriodNs);
     virtual status_t flush();
     virtual int32_t configureChannel(int handle, int rateLevel);
-
+    virtual void destroy();
 private:
     const sp<SensorService> mService;
     const uid_t mUid;
@@ -74,6 +74,9 @@
     mutable Mutex mConnectionLock;
     std::unordered_map<int, int> mActivated;
     std::unordered_map<int, int> mActivatedBackup;
+
+    mutable Mutex mDestroyLock;
+    bool mDestroyed;
 };
 
 } // namepsace android
diff --git a/services/sensorservice/SensorEventConnection.cpp b/services/sensorservice/SensorEventConnection.cpp
index bfe4c09..0a05dd1 100644
--- a/services/sensorservice/SensorEventConnection.cpp
+++ b/services/sensorservice/SensorEventConnection.cpp
@@ -32,7 +32,8 @@
         const String16& opPackageName)
     : mService(service), mUid(uid), mWakeLockRefCount(0), mHasLooperCallbacks(false),
       mDead(false), mDataInjectionMode(isDataInjectionMode), mEventCache(NULL),
-      mCacheSize(0), mMaxCacheSize(0), mPackageName(packageName), mOpPackageName(opPackageName) {
+      mCacheSize(0), mMaxCacheSize(0), mPackageName(packageName), mOpPackageName(opPackageName),
+      mDestroyed(false) {
     mChannel = new BitTube(mService->mSocketBufferSize);
 #if DEBUG_CONNECTIONS
     mEventsReceived = mEventsSentFromCache = mEventsSent = 0;
@@ -42,10 +43,22 @@
 
 SensorService::SensorEventConnection::~SensorEventConnection() {
     ALOGD_IF(DEBUG_CONNECTIONS, "~SensorEventConnection(%p)", this);
+    destroy();
+}
+
+void SensorService::SensorEventConnection::destroy() {
+    Mutex::Autolock _l(mDestroyLock);
+
+    // destroy once only
+    if (mDestroyed) {
+        return;
+    }
+
     mService->cleanupConnection(this);
     if (mEventCache != NULL) {
         delete mEventCache;
     }
+    mDestroyed = true;
 }
 
 void SensorService::SensorEventConnection::onFirstRef() {
diff --git a/services/sensorservice/SensorEventConnection.h b/services/sensorservice/SensorEventConnection.h
index c81e015..6f282cd 100644
--- a/services/sensorservice/SensorEventConnection.h
+++ b/services/sensorservice/SensorEventConnection.h
@@ -75,6 +75,7 @@
     virtual status_t setEventRate(int handle, nsecs_t samplingPeriodNs);
     virtual status_t flush();
     virtual int32_t configureChannel(int handle, int rateLevel);
+    virtual void destroy();
 
     // Count the number of flush complete events which are about to be dropped in the buffer.
     // Increment mPendingFlushEventsToSend in mSensorInfo. These flush complete events will be sent
@@ -164,6 +165,8 @@
     int mTotalAcksNeeded, mTotalAcksReceived;
 #endif
 
+    mutable Mutex mDestroyLock;
+    bool mDestroyed;
 };
 
 } // namepsace android
diff --git a/services/vr/bufferhubd/consumer_channel.cpp b/services/vr/bufferhubd/consumer_channel.cpp
index 08b2790..ac6896a 100644
--- a/services/vr/bufferhubd/consumer_channel.cpp
+++ b/services/vr/bufferhubd/consumer_channel.cpp
@@ -8,9 +8,9 @@
 #include <private/dvr/bufferhub_rpc.h>
 #include "producer_channel.h"
 
-using android::pdx::ErrorStatus;
 using android::pdx::BorrowedHandle;
 using android::pdx::Channel;
+using android::pdx::ErrorStatus;
 using android::pdx::Message;
 using android::pdx::Status;
 using android::pdx::rpc::DispatchRemoteMethod;
@@ -22,8 +22,6 @@
                                  int channel_id,
                                  const std::shared_ptr<Channel> producer)
     : BufferHubChannel(service, buffer_id, channel_id, kConsumerType),
-      handled_(true),
-      ignored_(false),
       producer_(producer) {
   GetProducer()->AddConsumer(this);
 }
@@ -34,7 +32,7 @@
            channel_id(), buffer_id());
 
   if (auto producer = GetProducer()) {
-    if (!handled_)  // Producer is waiting for our Release.
+    if (!released_)  // Producer is waiting for our Release.
       producer->OnConsumerIgnored();
     producer->RemoveConsumer(this);
   }
@@ -108,15 +106,20 @@
   if (!producer)
     return ErrorStatus(EPIPE);
 
-  if (ignored_ || handled_) {
+  if (acquired_ || released_) {
     ALOGE(
         "ConsumerChannel::OnConsumerAcquire: Acquire when not posted: "
-        "ignored=%d handled=%d channel_id=%d buffer_id=%d",
-        ignored_, handled_, message.GetChannelId(), producer->buffer_id());
+        "ignored=%d acquired=%d released=%d channel_id=%d buffer_id=%d",
+        ignored_, acquired_, released_, message.GetChannelId(),
+        producer->buffer_id());
     return ErrorStatus(EBUSY);
   } else {
-    ClearAvailable();
-    return producer->OnConsumerAcquire(message, metadata_size);
+    auto status = producer->OnConsumerAcquire(message, metadata_size);
+    if (status) {
+      ClearAvailable();
+      acquired_ = true;
+    }
+    return status;
   }
 }
 
@@ -127,17 +130,21 @@
   if (!producer)
     return ErrorStatus(EPIPE);
 
-  if (ignored_ || handled_) {
+  if (!acquired_ || released_) {
     ALOGE(
         "ConsumerChannel::OnConsumerRelease: Release when not acquired: "
-        "ignored=%d handled=%d channel_id=%d buffer_id=%d",
-        ignored_, handled_, message.GetChannelId(), producer->buffer_id());
+        "ignored=%d acquired=%d released=%d channel_id=%d buffer_id=%d",
+        ignored_, acquired_, released_, message.GetChannelId(),
+        producer->buffer_id());
     return ErrorStatus(EBUSY);
   } else {
-    ClearAvailable();
     auto status =
         producer->OnConsumerRelease(message, std::move(release_fence));
-    handled_ = !!status;
+    if (status) {
+      ClearAvailable();
+      acquired_ = false;
+      released_ = true;
+    }
     return status;
   }
 }
@@ -149,12 +156,13 @@
     return ErrorStatus(EPIPE);
 
   ignored_ = ignored;
-  if (ignored_ && !handled_) {
+  if (ignored_ && acquired_) {
     // Update the producer if ignore is set after the consumer acquires the
     // buffer.
     ClearAvailable();
     producer->OnConsumerIgnored();
-    handled_ = false;
+    acquired_ = false;
+    released_ = true;
   }
 
   return {};
@@ -162,10 +170,12 @@
 
 bool ConsumerChannel::OnProducerPosted() {
   if (ignored_) {
-    handled_ = true;
+    acquired_ = false;
+    released_ = true;
     return false;
   } else {
-    handled_ = false;
+    acquired_ = false;
+    released_ = false;
     SignalAvailable();
     return true;
   }
diff --git a/services/vr/bufferhubd/consumer_channel.h b/services/vr/bufferhubd/consumer_channel.h
index d84055c..208a002 100644
--- a/services/vr/bufferhubd/consumer_channel.h
+++ b/services/vr/bufferhubd/consumer_channel.h
@@ -38,8 +38,9 @@
                                       LocalFence release_fence);
   pdx::Status<void> OnConsumerSetIgnore(Message& message, bool ignore);
 
-  bool handled_;  // True if we have processed RELEASE.
-  bool ignored_;  // True if we are ignoring events.
+  bool acquired_{false};
+  bool released_{true};
+  bool ignored_{false};  // True if we are ignoring events.
   std::weak_ptr<Channel> producer_;
 
   ConsumerChannel(const ConsumerChannel&) = delete;
diff --git a/services/vr/bufferhubd/producer_channel.cpp b/services/vr/bufferhubd/producer_channel.cpp
index b9984a0..b2db795 100644
--- a/services/vr/bufferhubd/producer_channel.cpp
+++ b/services/vr/bufferhubd/producer_channel.cpp
@@ -122,7 +122,7 @@
 }
 
 Status<NativeBufferHandle<BorrowedHandle>> ProducerChannel::OnGetBuffer(
-    Message& message) {
+    Message& /*message*/) {
   ATRACE_NAME("ProducerChannel::OnGetBuffer");
   ALOGD_IF(TRACE, "ProducerChannel::OnGetBuffer: buffer=%d", buffer_id());
   return {NativeBufferHandle<BorrowedHandle>(buffer_, buffer_id())};
@@ -204,7 +204,7 @@
   return {};
 }
 
-Status<LocalFence> ProducerChannel::OnProducerGain(Message& message) {
+Status<LocalFence> ProducerChannel::OnProducerGain(Message& /*message*/) {
   ATRACE_NAME("ProducerChannel::OnGain");
   ALOGD_IF(TRACE, "ProducerChannel::OnGain: buffer_id=%d", buffer_id());
   if (producer_owns_) {
@@ -224,7 +224,7 @@
 }
 
 Status<std::pair<BorrowedFence, BufferWrapper<std::uint8_t*>>>
-ProducerChannel::OnConsumerAcquire(Message& message,
+ProducerChannel::OnConsumerAcquire(Message& /*message*/,
                                    std::size_t metadata_size) {
   ATRACE_NAME("ProducerChannel::OnConsumerAcquire");
   ALOGD_IF(TRACE, "ProducerChannel::OnConsumerAcquire: buffer_id=%d",
diff --git a/services/vr/hardware_composer/aidl/android/dvr/IVrComposer.aidl b/services/vr/hardware_composer/aidl/android/dvr/IVrComposer.aidl
index 5fd5c36..be1ec5b 100644
--- a/services/vr/hardware_composer/aidl/android/dvr/IVrComposer.aidl
+++ b/services/vr/hardware_composer/aidl/android/dvr/IVrComposer.aidl
@@ -17,4 +17,9 @@
    * Registers a callback used to receive frame notifications.
    */
   void registerObserver(in IVrComposerCallback callback);
+
+  /**
+   * Clears a previously registered frame notification callback.
+   */
+  void clearObserver();
 }
diff --git a/services/vr/hardware_composer/vr_composer.cpp b/services/vr/hardware_composer/vr_composer.cpp
index c45fbf4..36a313a 100644
--- a/services/vr/hardware_composer/vr_composer.cpp
+++ b/services/vr/hardware_composer/vr_composer.cpp
@@ -42,6 +42,12 @@
   return binder::Status::ok();
 }
 
+binder::Status VrComposer::clearObserver() {
+  std::lock_guard<std::mutex> guard(mutex_);
+  callback_ = nullptr;
+  return binder::Status::ok();
+}
+
 base::unique_fd VrComposer::OnNewFrame(const ComposerView::Frame& frame) {
   std::lock_guard<std::mutex> guard(mutex_);
 
diff --git a/services/vr/hardware_composer/vr_composer.h b/services/vr/hardware_composer/vr_composer.h
index 93d1f2b..7b580c6 100644
--- a/services/vr/hardware_composer/vr_composer.h
+++ b/services/vr/hardware_composer/vr_composer.h
@@ -27,6 +27,8 @@
   binder::Status registerObserver(
       const sp<IVrComposerCallback>& callback) override;
 
+  binder::Status clearObserver() override;
+
   // ComposerView::Observer:
   base::unique_fd OnNewFrame(const ComposerView::Frame& frame) override;
 
diff --git a/services/vr/performanced/performance_service.cpp b/services/vr/performanced/performance_service.cpp
index 3f7009a..4b9fbe0 100644
--- a/services/vr/performanced/performance_service.cpp
+++ b/services/vr/performanced/performance_service.cpp
@@ -63,7 +63,7 @@
 // Returns true if the sender's euid is trusted according to VR manager service.
 struct Trusted {
   static bool Check(const Message& sender, const Task&) {
-    return IsTrustedUid(sender.GetEffectiveUserId(), false);
+    return IsTrustedUid(sender.GetEffectiveUserId());
   }
 };
 
diff --git a/services/vr/performanced/performance_service.h b/services/vr/performanced/performance_service.h
index b812535..b28d94a 100644
--- a/services/vr/performanced/performance_service.h
+++ b/services/vr/performanced/performance_service.h
@@ -53,10 +53,13 @@
         permission_check;
 
     // Check the permisison of the given task to use this scheduler class. If a
-    // permission check function is not set then all tasks are allowed.
-    bool IsAllowed(const pdx::Message& message, const Task& task) const {
+    // permission check function is not set then operations are only allowed on
+    // tasks in the sender's process.
+    bool IsAllowed(const pdx::Message& sender, const Task& task) const {
       if (permission_check)
-        return permission_check(message, task);
+        return permission_check(sender, task);
+      else if (!task || task.thread_group_id() != sender.GetProcessId())
+        return false;
       else
         return true;
     }
diff --git a/services/vr/performanced/performance_service_tests.cpp b/services/vr/performanced/performance_service_tests.cpp
index 7de1f08..274a1b3 100644
--- a/services/vr/performanced/performance_service_tests.cpp
+++ b/services/vr/performanced/performance_service_tests.cpp
@@ -183,6 +183,17 @@
   ASSERT_EQ(AID_ROOT, original_uid)
       << "This test must run as root to function correctly!";
 
+  // Test unprivileged policies on a task that does not belong to this process.
+  // Use the init process (task_id=1) as the target.
+  error = dvrSetSchedulerPolicy(1, "batch");
+  EXPECT_EQ(-EINVAL, error);
+  error = dvrSetSchedulerPolicy(1, "background");
+  EXPECT_EQ(-EINVAL, error);
+  error = dvrSetSchedulerPolicy(1, "foreground");
+  EXPECT_EQ(-EINVAL, error);
+  error = dvrSetSchedulerPolicy(1, "normal");
+  EXPECT_EQ(-EINVAL, error);
+
   // Switch the uid/gid to an id that should not have permission to access any
   // privileged actions.
   ASSERT_EQ(0, setresgid(AID_NOBODY, AID_NOBODY, -1))
diff --git a/vulkan/api/vulkan.api b/vulkan/api/vulkan.api
index 11161c6..52c0b51 100644
--- a/vulkan/api/vulkan.api
+++ b/vulkan/api/vulkan.api
@@ -28,7 +28,7 @@
 // API version (major.minor.patch)
 define VERSION_MAJOR 1
 define VERSION_MINOR 0
-define VERSION_PATCH 49
+define VERSION_PATCH 53
 
 // API limits
 define VK_MAX_PHYSICAL_DEVICE_NAME_SIZE 256
@@ -85,7 +85,7 @@
 @extension("VK_KHR_android_surface") define VK_KHR_ANDROID_SURFACE_NAME         "VK_KHR_android_surface"
 
 // 10
-@extension("VK_KHR_win32_surface") define VK_KHR_WIN32_SURFACE_SPEC_VERSION     5
+@extension("VK_KHR_win32_surface") define VK_KHR_WIN32_SURFACE_SPEC_VERSION     6
 @extension("VK_KHR_win32_surface") define VK_KHR_WIN32_SURFACE_NAME             "VK_KHR_win32_surface"
 
 // 11
@@ -93,7 +93,7 @@
 @extension("VK_ANDROID_native_buffer") define VK_ANDROID_NATIVE_BUFFER_NAME             "VK_ANDROID_native_buffer"
 
 // 12
-@extension("VK_EXT_debug_report") define VK_EXT_DEBUG_REPORT_SPEC_VERSION       6
+@extension("VK_EXT_debug_report") define VK_EXT_DEBUG_REPORT_SPEC_VERSION       8
 @extension("VK_EXT_debug_report") define VK_EXT_DEBUG_REPORT_NAME               "VK_EXT_debug_report"
 
 // 13
@@ -152,6 +152,10 @@
 @extension("VK_AMD_shader_ballot") define VK_AMD_SHADER_BALLOT_SPEC_VERSION 1
 @extension("VK_AMD_shader_ballot") define VK_AMD_SHADER_BALLOT_EXTENSION_NAME "VK_AMD_shader_ballot"
 
+// 42
+@extension("VK_AMD_texture_gather_bias_lod") define VK_AMD_TEXTURE_GATHER_BIAS_LOD_SPEC_VERSION 1
+@extension("VK_AMD_texture_gather_bias_lod") define VK_AMD_TEXTURE_GATHER_BIAS_LOD_EXTENSION_NAME "VK_AMD_texture_gather_bias_lod"
+
 // 54
 @extension("VK_KHX_multiview") define VK_KHX_MULTIVIEW_SPEC_VERSION 1
 @extension("VK_KHX_multiview") define VK_KHX_MULTIVIEW_EXTENSION_NAME "VK_KHX_multiview"
@@ -332,6 +336,30 @@
 @extension("VK_MVK_macos_surface") define VK_MVK_MACOS_SURFACE_SPEC_VERSION 1
 @extension("VK_MVK_macos_surface") define VK_MVK_MACOS_SURFACE_EXTENSION_NAME "VK_MVK_macos_surface"
 
+// 131
+@extension("VK_EXT_sampler_filter_minmax") define VK_EXT_SAMPLER_FILTER_MINMAX_SPEC_VERSION 1
+@extension("VK_EXT_sampler_filter_minmax") define VK_EXT_SAMPLER_FILTER_MINMAX_EXTENSION_NAME "VK_EXT_sampler_filter_minmax"
+
+// 133
+@extension("VK_AMD_gpu_shader_int16") define VK_AMD_GPU_SHADER_INT16_SPEC_VERSION 1
+@extension("VK_AMD_gpu_shader_int16") define VK_AMD_GPU_SHADER_INT16_EXTENSION_NAME "VK_AMD_gpu_shader_int16"
+
+// 149
+@extension("VK_EXT_blend_operation_advanced") define VK_EXT_BLEND_OPERATION_ADVANCED_SPEC_VERSION 2
+@extension("VK_EXT_blend_operation_advanced") define VK_EXT_BLEND_OPERATION_ADVANCED_EXTENSION_NAME "VK_EXT_blend_operation_advanced"
+
+// 150
+@extension("VK_NV_fragment_coverage_to_color") define VK_NV_FRAGMENT_COVERAGE_TO_COLOR_SPEC_VERSION 1
+@extension("VK_NV_fragment_coverage_to_color") define VK_NV_FRAGMENT_COVERAGE_TO_COLOR_EXTENSION_NAME "VK_NV_fragment_coverage_to_color"
+
+// 153
+@extension("VK_NV_framebuffer_mixed_samples") define VK_NV_FRAMEBUFFER_MIXED_SAMPLES_SPEC_VERSION 1
+@extension("VK_NV_framebuffer_mixed_samples") define VK_NV_FRAMEBUFFER_MIXED_SAMPLES_EXTENSION_NAME "VK_NV_framebuffer_mixed_samples"
+
+// 154
+@extension("VK_NV_fill_rectangle") define VK_NV_FILL_RECTANGLE_SPEC_VERSION 1
+@extension("VK_NV_fill_rectangle") define VK_NV_FILL_RECTANGLE_EXTENSION_NAME "VK_NV_fill_rectangle"
+
 /////////////
 //  Types  //
 /////////////
@@ -554,6 +582,9 @@
     VK_POLYGON_MODE_FILL                                    = 0x00000000,
     VK_POLYGON_MODE_LINE                                    = 0x00000001,
     VK_POLYGON_MODE_POINT                                   = 0x00000002,
+
+    //@extension("VK_NV_fill_rectangle") // 154
+    VK_POLYGON_MODE_FILL_RECTANGLE_NV                       = 1000153000,
 }
 
 enum VkFrontFace {
@@ -589,6 +620,54 @@
     VK_BLEND_OP_REVERSE_SUBTRACT                            = 0x00000002,
     VK_BLEND_OP_MIN                                         = 0x00000003,
     VK_BLEND_OP_MAX                                         = 0x00000004,
+
+    //@extension("VK_EXT_blend_operation_advanced") // 149
+    VK_BLEND_OP_ZERO_EXT                                    = 1000148000,
+    VK_BLEND_OP_SRC_EXT                                     = 1000148001,
+    VK_BLEND_OP_DST_EXT                                     = 1000148002,
+    VK_BLEND_OP_SRC_OVER_EXT                                = 1000148003,
+    VK_BLEND_OP_DST_OVER_EXT                                = 1000148004,
+    VK_BLEND_OP_SRC_IN_EXT                                  = 1000148005,
+    VK_BLEND_OP_DST_IN_EXT                                  = 1000148006,
+    VK_BLEND_OP_SRC_OUT_EXT                                 = 1000148007,
+    VK_BLEND_OP_DST_OUT_EXT                                 = 1000148008,
+    VK_BLEND_OP_SRC_ATOP_EXT                                = 1000148009,
+    VK_BLEND_OP_DST_ATOP_EXT                                = 1000148010,
+    VK_BLEND_OP_XOR_EXT                                     = 1000148011,
+    VK_BLEND_OP_MULTIPLY_EXT                                = 1000148012,
+    VK_BLEND_OP_SCREEN_EXT                                  = 1000148013,
+    VK_BLEND_OP_OVERLAY_EXT                                 = 1000148014,
+    VK_BLEND_OP_DARKEN_EXT                                  = 1000148015,
+    VK_BLEND_OP_LIGHTEN_EXT                                 = 1000148016,
+    VK_BLEND_OP_COLORDODGE_EXT                              = 1000148017,
+    VK_BLEND_OP_COLORBURN_EXT                               = 1000148018,
+    VK_BLEND_OP_HARDLIGHT_EXT                               = 1000148019,
+    VK_BLEND_OP_SOFTLIGHT_EXT                               = 1000148020,
+    VK_BLEND_OP_DIFFERENCE_EXT                              = 1000148021,
+    VK_BLEND_OP_EXCLUSION_EXT                               = 1000148022,
+    VK_BLEND_OP_INVERT_EXT                                  = 1000148023,
+    VK_BLEND_OP_INVERT_RGB_EXT                              = 1000148024,
+    VK_BLEND_OP_LINEARDODGE_EXT                             = 1000148025,
+    VK_BLEND_OP_LINEARBURN_EXT                              = 1000148026,
+    VK_BLEND_OP_VIVIDLIGHT_EXT                              = 1000148027,
+    VK_BLEND_OP_LINEARLIGHT_EXT                             = 1000148028,
+    VK_BLEND_OP_PINLIGHT_EXT                                = 1000148029,
+    VK_BLEND_OP_HARDMIX_EXT                                 = 1000148030,
+    VK_BLEND_OP_HSL_HUE_EXT                                 = 1000148031,
+    VK_BLEND_OP_HSL_SATURATION_EXT                          = 1000148032,
+    VK_BLEND_OP_HSL_COLOR_EXT                               = 1000148033,
+    VK_BLEND_OP_HSL_LUMINOSITY_EXT                          = 1000148034,
+    VK_BLEND_OP_PLUS_EXT                                    = 1000148035,
+    VK_BLEND_OP_PLUS_CLAMPED_EXT                            = 1000148036,
+    VK_BLEND_OP_PLUS_CLAMPED_ALPHA_EXT                      = 1000148037,
+    VK_BLEND_OP_PLUS_DARKER_EXT                             = 1000148038,
+    VK_BLEND_OP_MINUS_EXT                                   = 1000148039,
+    VK_BLEND_OP_MINUS_CLAMPED_EXT                           = 1000148040,
+    VK_BLEND_OP_CONTRAST_EXT                                = 1000148041,
+    VK_BLEND_OP_INVERT_OVG_EXT                              = 1000148042,
+    VK_BLEND_OP_RED_EXT                                     = 1000148043,
+    VK_BLEND_OP_GREEN_EXT                                   = 1000148044,
+    VK_BLEND_OP_BLUE_EXT                                    = 1000148045,
 }
 
 enum VkStencilOp {
@@ -947,6 +1026,9 @@
     VK_STRUCTURE_TYPE_DEDICATED_ALLOCATION_BUFFER_CREATE_INFO_NV = 1000026001,
     VK_STRUCTURE_TYPE_DEDICATED_ALLOCATION_MEMORY_ALLOCATE_INFO_NV = 1000026002,
 
+    //@extension("VK_AMD_texture_gather_bias_lod") // 42
+    VK_STRUCTURE_TYPE_TEXTURE_LOD_GATHER_FORMAT_PROPERTIES_AMD  = 1000041000,
+
     //@extension("VK_KHX_multiview") // 54
     VK_STRUCTURE_TYPE_RENDER_PASS_MULTIVIEW_CREATE_INFO_KHX     = 1000053000,
     VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES_KHX    = 1000053001,
@@ -1096,6 +1178,21 @@
 
     //@extension("VK_MVK_macos_surface") // 124
     VK_STRUCTURE_TYPE_MACOS_SURFACE_CREATE_INFO_MVK             = 1000123000,
+
+    //@extension("VK_EXT_sampler_filter_minmax") // 131
+    VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_FILTER_MINMAX_PROPERTIES_EXT = 1000130000,
+    VK_STRUCTURE_TYPE_SAMPLER_REDUCTION_MODE_CREATE_INFO_EXT = 1000130001,
+
+    //@extension("VK_EXT_blend_operation_advanced") // 149
+    VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_BLEND_OPERATION_ADVANCED_FEATURES_EXT = 1000148000,
+    VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_BLEND_OPERATION_ADVANCED_PROPERTIES_EXT = 1000148001,
+    VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_ADVANCED_STATE_CREATE_INFO_EXT = 1000148002,
+
+    //@extension("VK_NV_fragment_coverage_to_color") // 150
+    VK_STRUCTURE_TYPE_PIPELINE_COVERAGE_TO_COLOR_STATE_CREATE_INFO_NV = 1000149000,
+
+    //@structure("VK_NV_framebuffer_mixed_samples") // 153
+    VK_STRUCTURE_TYPE_PIPELINE_COVERAGE_MODULATION_STATE_CREATE_INFO_NV = 1000152000,
 }
 
 enum VkSubpassContents {
@@ -1288,7 +1385,7 @@
     VK_DEBUG_REPORT_OBJECT_TYPE_COMMAND_POOL_EXT            = 25,
     VK_DEBUG_REPORT_OBJECT_TYPE_SURFACE_KHR_EXT             = 26,
     VK_DEBUG_REPORT_OBJECT_TYPE_SWAPCHAIN_KHR_EXT           = 27,
-    VK_DEBUG_REPORT_OBJECT_TYPE_DEBUG_REPORT_EXT            = 28,
+    VK_DEBUG_REPORT_OBJECT_TYPE_DEBUG_REPORT_CALLBACK_EXT_EXT = 28,
     VK_DEBUG_REPORT_OBJECT_TYPE_DISPLAY_KHR_EXT             = 29,
     VK_DEBUG_REPORT_OBJECT_TYPE_DISPLAY_MODE_KHR_EXT        = 30,
     VK_DEBUG_REPORT_OBJECT_TYPE_OBJECT_TABLE_NVX_EXT        = 31,
@@ -1298,12 +1395,6 @@
     VK_DEBUG_REPORT_OBJECT_TYPE_DESCRIPTOR_UPDATE_TEMPLATE_KHR_EXT = 1000085000,
 }
 
-@extension("VK_EXT_debug_report") // 12
-enum VkDebugReportErrorEXT {
-    VK_DEBUG_REPORT_ERROR_NONE_EXT                          = 0,
-    VK_DEBUG_REPORT_ERROR_CALLBACK_REF_EXT                  = 1,
-}
-
 @extension("VK_AMD_rasterization_order") // 19
 enum VkRasterizationOrderAMD {
     VK_RASTERIZATION_ORDER_STRICT_AMD                       = 0,
@@ -1313,6 +1404,7 @@
 @extension("VK_EXT_validation_flags") // 62
 enum VkValidationCheckEXT {
     VK_VALIDATION_CHECK_ALL_EXT                             = 0,
+    VK_VALIDATION_CHECK_SHADERS_EXT                         = 1,
 }
 
 @extension("VK_KHR_descriptor_update_template") // 86
@@ -1323,23 +1415,23 @@
 
 @extension("VK_NVX_device_generated_commands") // 87
 enum VkIndirectCommandsTokenTypeNVX {
-    VK_INDIRECT_COMMANDS_TOKEN_PIPELINE_NVX                 = 0,
-    VK_INDIRECT_COMMANDS_TOKEN_DESCRIPTOR_SET_NVX           = 1,
-    VK_INDIRECT_COMMANDS_TOKEN_INDEX_BUFFER_NVX             = 2,
-    VK_INDIRECT_COMMANDS_TOKEN_VERTEX_BUFFER_NVX            = 3,
-    VK_INDIRECT_COMMANDS_TOKEN_PUSH_CONSTANT_NVX            = 4,
-    VK_INDIRECT_COMMANDS_TOKEN_DRAW_INDEXED_NVX             = 5,
-    VK_INDIRECT_COMMANDS_TOKEN_DRAW_NVX                     = 6,
-    VK_INDIRECT_COMMANDS_TOKEN_DISPATCH_NVX                 = 7,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_PIPELINE_NVX            = 0,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_DESCRIPTOR_SET_NVX      = 1,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_INDEX_BUFFER_NVX        = 2,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_VERTEX_BUFFER_NVX       = 3,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_PUSH_CONSTANT_NVX       = 4,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_DRAW_INDEXED_NVX        = 5,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_DRAW_NVX                = 6,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_DISPATCH_NVX            = 7,
 }
 
 @extension("VK_NVX_device_generated_commands") // 87
 enum VkObjectEntryTypeNVX {
-    VK_OBJECT_ENTRY_DESCRIPTOR_SET_NVX                      = 0,
-    VK_OBJECT_ENTRY_PIPELINE_NVX                            = 1,
-    VK_OBJECT_ENTRY_INDEX_BUFFER_NVX                        = 2,
-    VK_OBJECT_ENTRY_VERTEX_BUFFER_NVX                       = 3,
-    VK_OBJECT_ENTRY_PUSH_CONSTANT_NVX                       = 4,
+    VK_OBJECT_ENTRY_TYPE_DESCRIPTOR_SET_NVX                 = 0,
+    VK_OBJECT_ENTRY_TYPE_PIPELINE_NVX                       = 1,
+    VK_OBJECT_ENTRY_TYPE_INDEX_BUFFER_NVX                   = 2,
+    VK_OBJECT_ENTRY_TYPE_VERTEX_BUFFER_NVX                  = 3,
+    VK_OBJECT_ENTRY_TYPE_PUSH_CONSTANT_NVX                  = 4,
 }
 
 @extension("VK_EXT_display_control") // 92
@@ -1377,6 +1469,28 @@
     VK_DISCARD_RECTANGLE_MODE_EXCLUSIVE_EXT = 1,
 }
 
+@extension("VK_EXT_sampler_filter_minmax") // 131
+enum VkSamplerReductionModeEXT {
+    VK_SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT          = 0,
+    VK_SAMPLER_REDUCTION_MODE_MIN_EXT                       = 1,
+    VK_SAMPLER_REDUCTION_MODE_MAX_EXT                       = 2,
+}
+
+@extension("VK_EXT_blend_operation_advanced") // 149
+enum VkBlendOverlapEXT {
+    VK_BLEND_OVERLAP_UNCORRELATED_EXT                       = 0,
+    VK_BLEND_OVERLAP_DISJOINT_EXT                           = 1,
+    VK_BLEND_OVERLAP_CONJOINT_EXT                           = 2,
+}
+
+@extension("VK_NV_framebuffer_mixed_samples") // 153
+enum VkCoverageModulationModeNV {
+    VK_COVERAGE_MODULATION_MODE_NONE_NV                     = 0,
+    VK_COVERAGE_MODULATION_MODE_RGB_NV                      = 1,
+    VK_COVERAGE_MODULATION_MODE_ALPHA_NV                    = 2,
+    VK_COVERAGE_MODULATION_MODE_RGBA_NV                     = 3,
+}
+
 /////////////////
 //  Bitfields  //
 /////////////////
@@ -1433,6 +1547,9 @@
     //@extension("VK_NVX_device_generated_commands") // 87
     VK_ACCESS_COMMAND_PROCESS_READ_BIT_NVX                  = 0x00020000,
     VK_ACCESS_COMMAND_PROCESS_WRITE_BIT_NVX                 = 0x00040000,
+
+    //@extension("VK_EXT_blend_operation_advanced") // 149
+    VK_ACCESS_COLOR_ATTACHMENT_READ_NONCOHERENT_BIT_EXT     = 0x00080000,
 }
 
 /// Buffer usage flags
@@ -1571,6 +1688,9 @@
     //@extension("VK_KHR_maintenance1") // 70
     VK_FORMAT_FEATURE_TRANSFER_SRC_BIT_KHR                  = 0x00004000,
     VK_FORMAT_FEATURE_TRANSFER_DST_BIT_KHR                  = 0x00008000,
+
+    //@extension("VK_EXT_sampler_filter_minmax") // 131
+    VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_MINMAX_BIT_EXT   = 0x00010000,
 }
 
 /// Query control flags
@@ -2117,6 +2237,18 @@
 //bitfield VkMacOSSurfaceCreateFlagBitsMVK {
 //}
 
+@extension("VK_NV_fragment_coverage_to_color") // 150
+type VkFlags VkPipelineCoverageToColorStateCreateFlagsNV
+@extension("VK_NV_fragment_coverage_to_color") // 150
+//bitfield VkPipelineCoverageToColorStateCreateFlagBitsNV {
+//}
+
+@extension("VK_NV_framebuffer_mixed_samples") // 153
+type VkFlags VkPipelineCoverageModulationStateCreateFlagsNV
+@extension("VK_NV_framebuffer_mixed_samples") // 153
+//bitfield VkPipelineCoverageModulationStateCreateFlagBitsNV {
+//}
+
 //////////////////
 //  Structures  //
 //////////////////
@@ -3498,6 +3630,13 @@
     VkBuffer                                    buffer
 }
 
+@extension("VK_AMD_texture_gather_bias_lod") // 42
+class VkTextureLODGatherFormatPropertiesAMD {
+    VkStructureType                             sType
+    void*                                       pNext
+    VkBool32                                    supportsTextureGatherLODBiasAMD
+}
+
 @extension("VK_KHX_multiview") // 54
 class VkRenderPassMultiviewCreateInfoKHX {
     VkStructureType                             sType
@@ -4352,6 +4491,69 @@
     const void*                                     pView
 }
 
+@extension("VK_EXT_sampler_filter_minmax") // 131
+class VkSamplerReductionModeCreateInfoEXT {
+    VkStructureType                                 sType
+    const void*                                     pNext
+    VkSamplerReductionModeEXT                       reductionMode
+}
+
+@extension("VK_EXT_sampler_filter_minmax") // 131
+class VkPhysicalDeviceSamplerFilterMinmaxPropertiesEXT {
+    VkStructureType                                 sType
+    void*                                           pNext
+    VkBool32                                        filterMinmaxSingleComponentFormats
+    VkBool32                                        filterMinmaxImageComponentMapping
+}
+
+@extension("VK_EXT_blend_operation_advanced") // 149
+class VkPhysicalDeviceBlendOperationAdvancedFeaturesEXT {
+    VkStructureType                                 sType
+    void*                                           pNext
+    VkBool32                                        advancedBlendCoherentOperations
+}
+
+@extension("VK_EXT_blend_operation_advanced") // 149
+class VkPhysicalDeviceBlendOperationAdvancedPropertiesEXT {
+    VkStructureType                                 sType
+    void*                                           pNext
+    u32                                             advancedBlendMaxColorAttachments
+    VkBool32                                        advancedBlendIndependentBlend
+    VkBool32                                        advancedBlendNonPremultipliedSrcColor
+    VkBool32                                        advancedBlendNonPremultipliedDstColor
+    VkBool32                                        advancedBlendCorrelatedOverlap
+    VkBool32                                        advancedBlendAllOperations
+}
+
+@extension("VK_EXT_blend_operation_advanced") // 149
+class VkPipelineColorBlendAdvancedStateCreateInfoEXT {
+    VkStructureType                                 sType
+    const void*                                     pNext
+    VkBool32                                        srcPremultiplied
+    VkBool32                                        dstPremultiplied
+    VkBlendOverlapEXT                               blendOverlap
+}
+
+@extension("VK_NV_fragment_coverage_to_color") // 150
+class VkPipelineCoverageToColorStateCreateInfoNV {
+    VkStructureType                                 sType
+    const void*                                     pNext
+    VkPipelineCoverageToColorStateCreateFlagsNV     flags
+    VkBool32                                        coverageToColorEnable
+    u32                                             coverageToColorLocation
+}
+
+@extension("VK_NV_framebuffer_mixed_samples") // 153
+class VkPipelineCoverageModulationStateCreateInfoNV {
+    VkStructureType                                 sType
+    const void*                                     pNext
+    VkPipelineCoverageModulationStateCreateFlagsNV  flags
+    VkCoverageModulationModeNV                      coverageModulationMode
+    VkBool32                                        coverageModulationTableEnable
+    u32                                             coverageModulationTableCount
+    const f32*                                      pCoverageModulationTable
+}
+
 ////////////////
 //  Commands  //
 ////////////////
diff --git a/vulkan/include/vulkan/vulkan.h b/vulkan/include/vulkan/vulkan.h
index f0209d6..4e7c2fc 100644
--- a/vulkan/include/vulkan/vulkan.h
+++ b/vulkan/include/vulkan/vulkan.h
@@ -43,7 +43,7 @@
 #define VK_VERSION_MINOR(version) (((uint32_t)(version) >> 12) & 0x3ff)
 #define VK_VERSION_PATCH(version) ((uint32_t)(version) & 0xfff)
 // Version of this file
-#define VK_HEADER_VERSION 49
+#define VK_HEADER_VERSION 53
 
 
 #define VK_NULL_HANDLE 0
@@ -222,6 +222,7 @@
     VK_STRUCTURE_TYPE_DEDICATED_ALLOCATION_IMAGE_CREATE_INFO_NV = 1000026000,
     VK_STRUCTURE_TYPE_DEDICATED_ALLOCATION_BUFFER_CREATE_INFO_NV = 1000026001,
     VK_STRUCTURE_TYPE_DEDICATED_ALLOCATION_MEMORY_ALLOCATE_INFO_NV = 1000026002,
+    VK_STRUCTURE_TYPE_TEXTURE_LOD_GATHER_FORMAT_PROPERTIES_AMD = 1000041000,
     VK_STRUCTURE_TYPE_RENDER_PASS_MULTIVIEW_CREATE_INFO_KHX = 1000053000,
     VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES_KHX = 1000053001,
     VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_PROPERTIES_KHX = 1000053002,
@@ -304,6 +305,13 @@
     VK_STRUCTURE_TYPE_SURFACE_FORMAT_2_KHR = 1000119002,
     VK_STRUCTURE_TYPE_IOS_SURFACE_CREATE_INFO_MVK = 1000122000,
     VK_STRUCTURE_TYPE_MACOS_SURFACE_CREATE_INFO_MVK = 1000123000,
+    VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_FILTER_MINMAX_PROPERTIES_EXT = 1000130000,
+    VK_STRUCTURE_TYPE_SAMPLER_REDUCTION_MODE_CREATE_INFO_EXT = 1000130001,
+    VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_BLEND_OPERATION_ADVANCED_FEATURES_EXT = 1000148000,
+    VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_BLEND_OPERATION_ADVANCED_PROPERTIES_EXT = 1000148001,
+    VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_ADVANCED_STATE_CREATE_INFO_EXT = 1000148002,
+    VK_STRUCTURE_TYPE_PIPELINE_COVERAGE_TO_COLOR_STATE_CREATE_INFO_NV = 1000149000,
+    VK_STRUCTURE_TYPE_PIPELINE_COVERAGE_MODULATION_STATE_CREATE_INFO_NV = 1000152000,
     VK_STRUCTURE_TYPE_BEGIN_RANGE = VK_STRUCTURE_TYPE_APPLICATION_INFO,
     VK_STRUCTURE_TYPE_END_RANGE = VK_STRUCTURE_TYPE_LOADER_DEVICE_CREATE_INFO,
     VK_STRUCTURE_TYPE_RANGE_SIZE = (VK_STRUCTURE_TYPE_LOADER_DEVICE_CREATE_INFO - VK_STRUCTURE_TYPE_APPLICATION_INFO + 1),
@@ -657,6 +665,7 @@
     VK_POLYGON_MODE_FILL = 0,
     VK_POLYGON_MODE_LINE = 1,
     VK_POLYGON_MODE_POINT = 2,
+    VK_POLYGON_MODE_FILL_RECTANGLE_NV = 1000153000,
     VK_POLYGON_MODE_BEGIN_RANGE = VK_POLYGON_MODE_FILL,
     VK_POLYGON_MODE_END_RANGE = VK_POLYGON_MODE_POINT,
     VK_POLYGON_MODE_RANGE_SIZE = (VK_POLYGON_MODE_POINT - VK_POLYGON_MODE_FILL + 1),
@@ -757,6 +766,52 @@
     VK_BLEND_OP_REVERSE_SUBTRACT = 2,
     VK_BLEND_OP_MIN = 3,
     VK_BLEND_OP_MAX = 4,
+    VK_BLEND_OP_ZERO_EXT = 1000148000,
+    VK_BLEND_OP_SRC_EXT = 1000148001,
+    VK_BLEND_OP_DST_EXT = 1000148002,
+    VK_BLEND_OP_SRC_OVER_EXT = 1000148003,
+    VK_BLEND_OP_DST_OVER_EXT = 1000148004,
+    VK_BLEND_OP_SRC_IN_EXT = 1000148005,
+    VK_BLEND_OP_DST_IN_EXT = 1000148006,
+    VK_BLEND_OP_SRC_OUT_EXT = 1000148007,
+    VK_BLEND_OP_DST_OUT_EXT = 1000148008,
+    VK_BLEND_OP_SRC_ATOP_EXT = 1000148009,
+    VK_BLEND_OP_DST_ATOP_EXT = 1000148010,
+    VK_BLEND_OP_XOR_EXT = 1000148011,
+    VK_BLEND_OP_MULTIPLY_EXT = 1000148012,
+    VK_BLEND_OP_SCREEN_EXT = 1000148013,
+    VK_BLEND_OP_OVERLAY_EXT = 1000148014,
+    VK_BLEND_OP_DARKEN_EXT = 1000148015,
+    VK_BLEND_OP_LIGHTEN_EXT = 1000148016,
+    VK_BLEND_OP_COLORDODGE_EXT = 1000148017,
+    VK_BLEND_OP_COLORBURN_EXT = 1000148018,
+    VK_BLEND_OP_HARDLIGHT_EXT = 1000148019,
+    VK_BLEND_OP_SOFTLIGHT_EXT = 1000148020,
+    VK_BLEND_OP_DIFFERENCE_EXT = 1000148021,
+    VK_BLEND_OP_EXCLUSION_EXT = 1000148022,
+    VK_BLEND_OP_INVERT_EXT = 1000148023,
+    VK_BLEND_OP_INVERT_RGB_EXT = 1000148024,
+    VK_BLEND_OP_LINEARDODGE_EXT = 1000148025,
+    VK_BLEND_OP_LINEARBURN_EXT = 1000148026,
+    VK_BLEND_OP_VIVIDLIGHT_EXT = 1000148027,
+    VK_BLEND_OP_LINEARLIGHT_EXT = 1000148028,
+    VK_BLEND_OP_PINLIGHT_EXT = 1000148029,
+    VK_BLEND_OP_HARDMIX_EXT = 1000148030,
+    VK_BLEND_OP_HSL_HUE_EXT = 1000148031,
+    VK_BLEND_OP_HSL_SATURATION_EXT = 1000148032,
+    VK_BLEND_OP_HSL_COLOR_EXT = 1000148033,
+    VK_BLEND_OP_HSL_LUMINOSITY_EXT = 1000148034,
+    VK_BLEND_OP_PLUS_EXT = 1000148035,
+    VK_BLEND_OP_PLUS_CLAMPED_EXT = 1000148036,
+    VK_BLEND_OP_PLUS_CLAMPED_ALPHA_EXT = 1000148037,
+    VK_BLEND_OP_PLUS_DARKER_EXT = 1000148038,
+    VK_BLEND_OP_MINUS_EXT = 1000148039,
+    VK_BLEND_OP_MINUS_CLAMPED_EXT = 1000148040,
+    VK_BLEND_OP_CONTRAST_EXT = 1000148041,
+    VK_BLEND_OP_INVERT_OVG_EXT = 1000148042,
+    VK_BLEND_OP_RED_EXT = 1000148043,
+    VK_BLEND_OP_GREEN_EXT = 1000148044,
+    VK_BLEND_OP_BLUE_EXT = 1000148045,
     VK_BLEND_OP_BEGIN_RANGE = VK_BLEND_OP_ADD,
     VK_BLEND_OP_END_RANGE = VK_BLEND_OP_MAX,
     VK_BLEND_OP_RANGE_SIZE = (VK_BLEND_OP_MAX - VK_BLEND_OP_ADD + 1),
@@ -958,6 +1013,7 @@
     VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_CUBIC_BIT_IMG = 0x00002000,
     VK_FORMAT_FEATURE_TRANSFER_SRC_BIT_KHR = 0x00004000,
     VK_FORMAT_FEATURE_TRANSFER_DST_BIT_KHR = 0x00008000,
+    VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_MINMAX_BIT_EXT = 0x00010000,
     VK_FORMAT_FEATURE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
 } VkFormatFeatureFlagBits;
 typedef VkFlags VkFormatFeatureFlags;
@@ -1235,6 +1291,7 @@
     VK_ACCESS_MEMORY_WRITE_BIT = 0x00010000,
     VK_ACCESS_COMMAND_PROCESS_READ_BIT_NVX = 0x00020000,
     VK_ACCESS_COMMAND_PROCESS_WRITE_BIT_NVX = 0x00040000,
+    VK_ACCESS_COLOR_ATTACHMENT_READ_NONCOHERENT_BIT_EXT = 0x00080000,
     VK_ACCESS_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF
 } VkAccessFlagBits;
 typedef VkFlags VkAccessFlags;
@@ -3862,7 +3919,7 @@
 #define VK_KHR_win32_surface 1
 #include <windows.h>
 
-#define VK_KHR_WIN32_SURFACE_SPEC_VERSION 5
+#define VK_KHR_WIN32_SURFACE_SPEC_VERSION 6
 #define VK_KHR_WIN32_SURFACE_EXTENSION_NAME "VK_KHR_win32_surface"
 
 typedef VkFlags VkWin32SurfaceCreateFlagsKHR;
@@ -4207,9 +4264,10 @@
 #define VK_EXT_debug_report 1
 VK_DEFINE_NON_DISPATCHABLE_HANDLE(VkDebugReportCallbackEXT)
 
-#define VK_EXT_DEBUG_REPORT_SPEC_VERSION  6
+#define VK_EXT_DEBUG_REPORT_SPEC_VERSION  8
 #define VK_EXT_DEBUG_REPORT_EXTENSION_NAME "VK_EXT_debug_report"
 #define VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT
+#define VK_DEBUG_REPORT_OBJECT_TYPE_DEBUG_REPORT_EXT VK_DEBUG_REPORT_OBJECT_TYPE_DEBUG_REPORT_CALLBACK_EXT_EXT
 
 
 typedef enum VkDebugReportObjectTypeEXT {
@@ -4241,7 +4299,7 @@
     VK_DEBUG_REPORT_OBJECT_TYPE_COMMAND_POOL_EXT = 25,
     VK_DEBUG_REPORT_OBJECT_TYPE_SURFACE_KHR_EXT = 26,
     VK_DEBUG_REPORT_OBJECT_TYPE_SWAPCHAIN_KHR_EXT = 27,
-    VK_DEBUG_REPORT_OBJECT_TYPE_DEBUG_REPORT_EXT = 28,
+    VK_DEBUG_REPORT_OBJECT_TYPE_DEBUG_REPORT_CALLBACK_EXT_EXT = 28,
     VK_DEBUG_REPORT_OBJECT_TYPE_DISPLAY_KHR_EXT = 29,
     VK_DEBUG_REPORT_OBJECT_TYPE_DISPLAY_MODE_KHR_EXT = 30,
     VK_DEBUG_REPORT_OBJECT_TYPE_OBJECT_TABLE_NVX_EXT = 31,
@@ -4253,15 +4311,6 @@
     VK_DEBUG_REPORT_OBJECT_TYPE_MAX_ENUM_EXT = 0x7FFFFFFF
 } VkDebugReportObjectTypeEXT;
 
-typedef enum VkDebugReportErrorEXT {
-    VK_DEBUG_REPORT_ERROR_NONE_EXT = 0,
-    VK_DEBUG_REPORT_ERROR_CALLBACK_REF_EXT = 1,
-    VK_DEBUG_REPORT_ERROR_BEGIN_RANGE_EXT = VK_DEBUG_REPORT_ERROR_NONE_EXT,
-    VK_DEBUG_REPORT_ERROR_END_RANGE_EXT = VK_DEBUG_REPORT_ERROR_CALLBACK_REF_EXT,
-    VK_DEBUG_REPORT_ERROR_RANGE_SIZE_EXT = (VK_DEBUG_REPORT_ERROR_CALLBACK_REF_EXT - VK_DEBUG_REPORT_ERROR_NONE_EXT + 1),
-    VK_DEBUG_REPORT_ERROR_MAX_ENUM_EXT = 0x7FFFFFFF
-} VkDebugReportErrorEXT;
-
 
 typedef enum VkDebugReportFlagBitsEXT {
     VK_DEBUG_REPORT_INFORMATION_BIT_EXT = 0x00000001,
@@ -4491,6 +4540,18 @@
 #define VK_AMD_SHADER_BALLOT_EXTENSION_NAME "VK_AMD_shader_ballot"
 
 
+#define VK_AMD_texture_gather_bias_lod 1
+#define VK_AMD_TEXTURE_GATHER_BIAS_LOD_SPEC_VERSION 1
+#define VK_AMD_TEXTURE_GATHER_BIAS_LOD_EXTENSION_NAME "VK_AMD_texture_gather_bias_lod"
+
+typedef struct VkTextureLODGatherFormatPropertiesAMD {
+    VkStructureType    sType;
+    void*              pNext;
+    VkBool32           supportsTextureGatherLODBiasAMD;
+} VkTextureLODGatherFormatPropertiesAMD;
+
+
+
 #define VK_KHX_multiview 1
 #define VK_KHX_MULTIVIEW_SPEC_VERSION     1
 #define VK_KHX_MULTIVIEW_EXTENSION_NAME   "VK_KHX_multiview"
@@ -4846,9 +4907,10 @@
 
 typedef enum VkValidationCheckEXT {
     VK_VALIDATION_CHECK_ALL_EXT = 0,
+    VK_VALIDATION_CHECK_SHADERS_EXT = 1,
     VK_VALIDATION_CHECK_BEGIN_RANGE_EXT = VK_VALIDATION_CHECK_ALL_EXT,
-    VK_VALIDATION_CHECK_END_RANGE_EXT = VK_VALIDATION_CHECK_ALL_EXT,
-    VK_VALIDATION_CHECK_RANGE_SIZE_EXT = (VK_VALIDATION_CHECK_ALL_EXT - VK_VALIDATION_CHECK_ALL_EXT + 1),
+    VK_VALIDATION_CHECK_END_RANGE_EXT = VK_VALIDATION_CHECK_SHADERS_EXT,
+    VK_VALIDATION_CHECK_RANGE_SIZE_EXT = (VK_VALIDATION_CHECK_SHADERS_EXT - VK_VALIDATION_CHECK_ALL_EXT + 1),
     VK_VALIDATION_CHECK_MAX_ENUM_EXT = 0x7FFFFFFF
 } VkValidationCheckEXT;
 
@@ -5270,29 +5332,29 @@
 
 
 typedef enum VkIndirectCommandsTokenTypeNVX {
-    VK_INDIRECT_COMMANDS_TOKEN_PIPELINE_NVX = 0,
-    VK_INDIRECT_COMMANDS_TOKEN_DESCRIPTOR_SET_NVX = 1,
-    VK_INDIRECT_COMMANDS_TOKEN_INDEX_BUFFER_NVX = 2,
-    VK_INDIRECT_COMMANDS_TOKEN_VERTEX_BUFFER_NVX = 3,
-    VK_INDIRECT_COMMANDS_TOKEN_PUSH_CONSTANT_NVX = 4,
-    VK_INDIRECT_COMMANDS_TOKEN_DRAW_INDEXED_NVX = 5,
-    VK_INDIRECT_COMMANDS_TOKEN_DRAW_NVX = 6,
-    VK_INDIRECT_COMMANDS_TOKEN_DISPATCH_NVX = 7,
-    VK_INDIRECT_COMMANDS_TOKEN_TYPE_BEGIN_RANGE_NVX = VK_INDIRECT_COMMANDS_TOKEN_PIPELINE_NVX,
-    VK_INDIRECT_COMMANDS_TOKEN_TYPE_END_RANGE_NVX = VK_INDIRECT_COMMANDS_TOKEN_DISPATCH_NVX,
-    VK_INDIRECT_COMMANDS_TOKEN_TYPE_RANGE_SIZE_NVX = (VK_INDIRECT_COMMANDS_TOKEN_DISPATCH_NVX - VK_INDIRECT_COMMANDS_TOKEN_PIPELINE_NVX + 1),
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_PIPELINE_NVX = 0,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_DESCRIPTOR_SET_NVX = 1,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_INDEX_BUFFER_NVX = 2,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_VERTEX_BUFFER_NVX = 3,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_PUSH_CONSTANT_NVX = 4,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_DRAW_INDEXED_NVX = 5,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_DRAW_NVX = 6,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_DISPATCH_NVX = 7,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_BEGIN_RANGE_NVX = VK_INDIRECT_COMMANDS_TOKEN_TYPE_PIPELINE_NVX,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_END_RANGE_NVX = VK_INDIRECT_COMMANDS_TOKEN_TYPE_DISPATCH_NVX,
+    VK_INDIRECT_COMMANDS_TOKEN_TYPE_RANGE_SIZE_NVX = (VK_INDIRECT_COMMANDS_TOKEN_TYPE_DISPATCH_NVX - VK_INDIRECT_COMMANDS_TOKEN_TYPE_PIPELINE_NVX + 1),
     VK_INDIRECT_COMMANDS_TOKEN_TYPE_MAX_ENUM_NVX = 0x7FFFFFFF
 } VkIndirectCommandsTokenTypeNVX;
 
 typedef enum VkObjectEntryTypeNVX {
-    VK_OBJECT_ENTRY_DESCRIPTOR_SET_NVX = 0,
-    VK_OBJECT_ENTRY_PIPELINE_NVX = 1,
-    VK_OBJECT_ENTRY_INDEX_BUFFER_NVX = 2,
-    VK_OBJECT_ENTRY_VERTEX_BUFFER_NVX = 3,
-    VK_OBJECT_ENTRY_PUSH_CONSTANT_NVX = 4,
-    VK_OBJECT_ENTRY_TYPE_BEGIN_RANGE_NVX = VK_OBJECT_ENTRY_DESCRIPTOR_SET_NVX,
-    VK_OBJECT_ENTRY_TYPE_END_RANGE_NVX = VK_OBJECT_ENTRY_PUSH_CONSTANT_NVX,
-    VK_OBJECT_ENTRY_TYPE_RANGE_SIZE_NVX = (VK_OBJECT_ENTRY_PUSH_CONSTANT_NVX - VK_OBJECT_ENTRY_DESCRIPTOR_SET_NVX + 1),
+    VK_OBJECT_ENTRY_TYPE_DESCRIPTOR_SET_NVX = 0,
+    VK_OBJECT_ENTRY_TYPE_PIPELINE_NVX = 1,
+    VK_OBJECT_ENTRY_TYPE_INDEX_BUFFER_NVX = 2,
+    VK_OBJECT_ENTRY_TYPE_VERTEX_BUFFER_NVX = 3,
+    VK_OBJECT_ENTRY_TYPE_PUSH_CONSTANT_NVX = 4,
+    VK_OBJECT_ENTRY_TYPE_BEGIN_RANGE_NVX = VK_OBJECT_ENTRY_TYPE_DESCRIPTOR_SET_NVX,
+    VK_OBJECT_ENTRY_TYPE_END_RANGE_NVX = VK_OBJECT_ENTRY_TYPE_PUSH_CONSTANT_NVX,
+    VK_OBJECT_ENTRY_TYPE_RANGE_SIZE_NVX = (VK_OBJECT_ENTRY_TYPE_PUSH_CONSTANT_NVX - VK_OBJECT_ENTRY_TYPE_DESCRIPTOR_SET_NVX + 1),
     VK_OBJECT_ENTRY_TYPE_MAX_ENUM_NVX = 0x7FFFFFFF
 } VkObjectEntryTypeNVX;
 
@@ -5919,6 +5981,134 @@
 #endif
 #endif /* VK_USE_PLATFORM_MACOS_MVK */
 
+#define VK_EXT_sampler_filter_minmax 1
+#define VK_EXT_SAMPLER_FILTER_MINMAX_SPEC_VERSION 1
+#define VK_EXT_SAMPLER_FILTER_MINMAX_EXTENSION_NAME "VK_EXT_sampler_filter_minmax"
+
+
+typedef enum VkSamplerReductionModeEXT {
+    VK_SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT = 0,
+    VK_SAMPLER_REDUCTION_MODE_MIN_EXT = 1,
+    VK_SAMPLER_REDUCTION_MODE_MAX_EXT = 2,
+    VK_SAMPLER_REDUCTION_MODE_BEGIN_RANGE_EXT = VK_SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT,
+    VK_SAMPLER_REDUCTION_MODE_END_RANGE_EXT = VK_SAMPLER_REDUCTION_MODE_MAX_EXT,
+    VK_SAMPLER_REDUCTION_MODE_RANGE_SIZE_EXT = (VK_SAMPLER_REDUCTION_MODE_MAX_EXT - VK_SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT + 1),
+    VK_SAMPLER_REDUCTION_MODE_MAX_ENUM_EXT = 0x7FFFFFFF
+} VkSamplerReductionModeEXT;
+
+typedef struct VkSamplerReductionModeCreateInfoEXT {
+    VkStructureType              sType;
+    const void*                  pNext;
+    VkSamplerReductionModeEXT    reductionMode;
+} VkSamplerReductionModeCreateInfoEXT;
+
+typedef struct VkPhysicalDeviceSamplerFilterMinmaxPropertiesEXT {
+    VkStructureType    sType;
+    void*              pNext;
+    VkBool32           filterMinmaxSingleComponentFormats;
+    VkBool32           filterMinmaxImageComponentMapping;
+} VkPhysicalDeviceSamplerFilterMinmaxPropertiesEXT;
+
+
+
+#define VK_AMD_gpu_shader_int16 1
+#define VK_AMD_GPU_SHADER_INT16_SPEC_VERSION 1
+#define VK_AMD_GPU_SHADER_INT16_EXTENSION_NAME "VK_AMD_gpu_shader_int16"
+
+
+#define VK_EXT_blend_operation_advanced 1
+#define VK_EXT_BLEND_OPERATION_ADVANCED_SPEC_VERSION 2
+#define VK_EXT_BLEND_OPERATION_ADVANCED_EXTENSION_NAME "VK_EXT_blend_operation_advanced"
+
+
+typedef enum VkBlendOverlapEXT {
+    VK_BLEND_OVERLAP_UNCORRELATED_EXT = 0,
+    VK_BLEND_OVERLAP_DISJOINT_EXT = 1,
+    VK_BLEND_OVERLAP_CONJOINT_EXT = 2,
+    VK_BLEND_OVERLAP_BEGIN_RANGE_EXT = VK_BLEND_OVERLAP_UNCORRELATED_EXT,
+    VK_BLEND_OVERLAP_END_RANGE_EXT = VK_BLEND_OVERLAP_CONJOINT_EXT,
+    VK_BLEND_OVERLAP_RANGE_SIZE_EXT = (VK_BLEND_OVERLAP_CONJOINT_EXT - VK_BLEND_OVERLAP_UNCORRELATED_EXT + 1),
+    VK_BLEND_OVERLAP_MAX_ENUM_EXT = 0x7FFFFFFF
+} VkBlendOverlapEXT;
+
+typedef struct VkPhysicalDeviceBlendOperationAdvancedFeaturesEXT {
+    VkStructureType    sType;
+    void*              pNext;
+    VkBool32           advancedBlendCoherentOperations;
+} VkPhysicalDeviceBlendOperationAdvancedFeaturesEXT;
+
+typedef struct VkPhysicalDeviceBlendOperationAdvancedPropertiesEXT {
+    VkStructureType    sType;
+    void*              pNext;
+    uint32_t           advancedBlendMaxColorAttachments;
+    VkBool32           advancedBlendIndependentBlend;
+    VkBool32           advancedBlendNonPremultipliedSrcColor;
+    VkBool32           advancedBlendNonPremultipliedDstColor;
+    VkBool32           advancedBlendCorrelatedOverlap;
+    VkBool32           advancedBlendAllOperations;
+} VkPhysicalDeviceBlendOperationAdvancedPropertiesEXT;
+
+typedef struct VkPipelineColorBlendAdvancedStateCreateInfoEXT {
+    VkStructureType      sType;
+    const void*          pNext;
+    VkBool32             srcPremultiplied;
+    VkBool32             dstPremultiplied;
+    VkBlendOverlapEXT    blendOverlap;
+} VkPipelineColorBlendAdvancedStateCreateInfoEXT;
+
+
+
+#define VK_NV_fragment_coverage_to_color 1
+#define VK_NV_FRAGMENT_COVERAGE_TO_COLOR_SPEC_VERSION 1
+#define VK_NV_FRAGMENT_COVERAGE_TO_COLOR_EXTENSION_NAME "VK_NV_fragment_coverage_to_color"
+
+typedef VkFlags VkPipelineCoverageToColorStateCreateFlagsNV;
+
+typedef struct VkPipelineCoverageToColorStateCreateInfoNV {
+    VkStructureType                                sType;
+    const void*                                    pNext;
+    VkPipelineCoverageToColorStateCreateFlagsNV    flags;
+    VkBool32                                       coverageToColorEnable;
+    uint32_t                                       coverageToColorLocation;
+} VkPipelineCoverageToColorStateCreateInfoNV;
+
+
+
+#define VK_NV_framebuffer_mixed_samples 1
+#define VK_NV_FRAMEBUFFER_MIXED_SAMPLES_SPEC_VERSION 1
+#define VK_NV_FRAMEBUFFER_MIXED_SAMPLES_EXTENSION_NAME "VK_NV_framebuffer_mixed_samples"
+
+
+typedef enum VkCoverageModulationModeNV {
+    VK_COVERAGE_MODULATION_MODE_NONE_NV = 0,
+    VK_COVERAGE_MODULATION_MODE_RGB_NV = 1,
+    VK_COVERAGE_MODULATION_MODE_ALPHA_NV = 2,
+    VK_COVERAGE_MODULATION_MODE_RGBA_NV = 3,
+    VK_COVERAGE_MODULATION_MODE_BEGIN_RANGE_NV = VK_COVERAGE_MODULATION_MODE_NONE_NV,
+    VK_COVERAGE_MODULATION_MODE_END_RANGE_NV = VK_COVERAGE_MODULATION_MODE_RGBA_NV,
+    VK_COVERAGE_MODULATION_MODE_RANGE_SIZE_NV = (VK_COVERAGE_MODULATION_MODE_RGBA_NV - VK_COVERAGE_MODULATION_MODE_NONE_NV + 1),
+    VK_COVERAGE_MODULATION_MODE_MAX_ENUM_NV = 0x7FFFFFFF
+} VkCoverageModulationModeNV;
+
+typedef VkFlags VkPipelineCoverageModulationStateCreateFlagsNV;
+
+typedef struct VkPipelineCoverageModulationStateCreateInfoNV {
+    VkStructureType                                   sType;
+    const void*                                       pNext;
+    VkPipelineCoverageModulationStateCreateFlagsNV    flags;
+    VkCoverageModulationModeNV                        coverageModulationMode;
+    VkBool32                                          coverageModulationTableEnable;
+    uint32_t                                          coverageModulationTableCount;
+    const float*                                      pCoverageModulationTable;
+} VkPipelineCoverageModulationStateCreateInfoNV;
+
+
+
+#define VK_NV_fill_rectangle 1
+#define VK_NV_FILL_RECTANGLE_SPEC_VERSION 1
+#define VK_NV_FILL_RECTANGLE_EXTENSION_NAME "VK_NV_fill_rectangle"
+
+
 #ifdef __cplusplus
 }
 #endif