diff --git a/libs/ui/Gralloc1.cpp b/libs/ui/Gralloc1.cpp
index 367d1ce..0083f58 100644
--- a/libs/ui/Gralloc1.cpp
+++ b/libs/ui/Gralloc1.cpp
@@ -140,12 +140,6 @@
     return descriptor;
 }
 
-gralloc1_error_t Device::getStride(buffer_handle_t buffer, uint32_t* outStride)
-{
-    int32_t intError = mFunctions.getStride(mDevice, buffer, outStride);
-    return static_cast<gralloc1_error_t>(intError);
-}
-
 static inline bool allocationSucceded(gralloc1_error_t error)
 {
     return error == GRALLOC1_ERROR_NONE || error == GRALLOC1_ERROR_NOT_SHARED;
@@ -225,6 +219,99 @@
     return static_cast<gralloc1_error_t>(intError);
 }
 
+gralloc1_error_t Device::getDimensions(buffer_handle_t buffer,
+        uint32_t* outWidth, uint32_t* outHeight)
+{
+    uint32_t width = 0;
+    uint32_t height = 0;
+    int32_t intError = mFunctions.getDimensions(mDevice, buffer, &width,
+            &height);
+    auto error = static_cast<gralloc1_error_t>(intError);
+    if (error == GRALLOC1_ERROR_NONE) {
+        *outWidth = width;
+        *outHeight = height;
+    }
+    return error;
+}
+
+gralloc1_error_t Device::getFormat(buffer_handle_t buffer,
+        int32_t* outFormat)
+{
+    int32_t format = 0;
+    int32_t intError = mFunctions.getFormat(mDevice, buffer, &format);
+    auto error = static_cast<gralloc1_error_t>(intError);
+    if (error == GRALLOC1_ERROR_NONE) {
+        *outFormat = format;
+    }
+    return error;
+}
+
+gralloc1_error_t Device::getLayerCount(buffer_handle_t buffer,
+        uint32_t* outLayerCount)
+{
+    if (hasCapability(GRALLOC1_CAPABILITY_LAYERED_BUFFERS)) {
+        uint32_t layerCount = 0;
+        int32_t intError = mFunctions.getLayerCount(mDevice, buffer,
+                &layerCount);
+        auto error = static_cast<gralloc1_error_t>(intError);
+        if (error == GRALLOC1_ERROR_NONE) {
+            *outLayerCount = layerCount;
+        }
+        return error;
+    } else {
+        // Layered buffers are not supported on this device.
+        return GRALLOC1_ERROR_UNSUPPORTED;
+    }
+}
+
+gralloc1_error_t Device::getProducerUsage(buffer_handle_t buffer,
+        uint64_t* outProducerUsage)
+{
+    uint64_t usage = 0;
+    int32_t intError = mFunctions.getProducerUsage(mDevice, buffer, &usage);
+    auto error = static_cast<gralloc1_error_t>(intError);
+    if (error == GRALLOC1_ERROR_NONE) {
+        *outProducerUsage = usage;
+    }
+    return error;
+}
+
+gralloc1_error_t Device::getConsumerUsage(buffer_handle_t buffer,
+        uint64_t* outConsumerUsage)
+{
+    uint64_t usage = 0;
+    int32_t intError = mFunctions.getConsumerUsage(mDevice, buffer, &usage);
+    auto error = static_cast<gralloc1_error_t>(intError);
+    if (error == GRALLOC1_ERROR_NONE) {
+        *outConsumerUsage = usage;
+    }
+    return error;
+}
+
+gralloc1_error_t Device::getBackingStore(buffer_handle_t buffer,
+        uint64_t* outBackingStore)
+{
+    uint64_t store = 0;
+    int32_t intError = mFunctions.getBackingStore(mDevice, buffer, &store);
+    auto error = static_cast<gralloc1_error_t>(intError);
+    if (error == GRALLOC1_ERROR_NONE) {
+        *outBackingStore = store;
+    }
+    return error;
+}
+
+gralloc1_error_t Device::getStride(buffer_handle_t buffer,
+        uint32_t* outStride)
+{
+    uint32_t stride = 0;
+    int32_t intError = mFunctions.getStride(mDevice, buffer, &stride);
+    auto error = static_cast<gralloc1_error_t>(intError);
+    if (error == GRALLOC1_ERROR_NONE) {
+        *outStride = stride;
+    }
+    return error;
+}
+
 gralloc1_error_t Device::getNumFlexPlanes(buffer_handle_t buffer,
         uint32_t* outNumPlanes)
 {
@@ -244,7 +331,7 @@
         const sp<Fence>& acquireFence)
 {
     ALOGV("Calling lock(%p)", buffer);
-    return lockHelper(mFunctions.lock.pfn, buffer, producerUsage,
+    return lockHelper(mFunctions.lock, buffer, producerUsage,
             consumerUsage, accessRegion, outData, acquireFence);
 }
 
@@ -256,7 +343,7 @@
         const sp<Fence>& acquireFence)
 {
     ALOGV("Calling lockFlex(%p)", buffer);
-    return lockHelper(mFunctions.lockFlex.pfn, buffer, producerUsage,
+    return lockHelper(mFunctions.lockFlex, buffer, producerUsage,
             consumerUsage, accessRegion, outData, acquireFence);
 }
 
@@ -268,7 +355,7 @@
         const sp<Fence>& acquireFence)
 {
     ALOGV("Calling lockYCbCr(%p)", buffer);
-    return lockHelper(mFunctions.lockYCbCr.pfn, buffer, producerUsage,
+    return lockHelper(mFunctions.lockYCbCr, buffer, producerUsage,
             consumerUsage, accessRegion, outData, acquireFence);
 }
 
diff --git a/libs/ui/GrallocMapper.cpp b/libs/ui/GrallocMapper.cpp
index 7ee01ad..b9e9040 100644
--- a/libs/ui/GrallocMapper.cpp
+++ b/libs/ui/GrallocMapper.cpp
@@ -51,6 +51,115 @@
             "release(%p) failed with %d", handle, error);
 }
 
+Error Mapper::getDimensions(buffer_handle_t handle,
+        uint32_t* outWidth, uint32_t* outHeight) const
+{
+    Error error = kDefaultError;
+    mMapper->getDimensions(handle,
+            [&](const auto& tmpError, const auto& tmpWidth,
+                    const auto& tmpHeight)
+            {
+                error = tmpError;
+                if (error != Error::NONE) {
+                    return;
+                }
+
+                *outWidth = tmpWidth;
+                *outHeight = tmpHeight;
+            });
+
+    return error;
+}
+
+Error Mapper::getFormat(buffer_handle_t handle, int32_t* outFormat) const
+{
+    Error error = kDefaultError;
+    mMapper->getFormat(handle,
+            [&](const auto& tmpError, const auto& tmpFormat)
+            {
+                error = tmpError;
+                if (error != Error::NONE) {
+                    return;
+                }
+
+                *outFormat = static_cast<int32_t>(tmpFormat);
+            });
+
+    return error;
+}
+
+Error Mapper::getLayerCount(buffer_handle_t handle,
+        uint32_t* outLayerCount) const
+{
+    Error error = kDefaultError;
+    mMapper->getLayerCount(handle,
+            [&](const auto& tmpError, const auto& tmpLayerCount)
+            {
+                error = tmpError;
+                if (error != Error::NONE) {
+                    return;
+                }
+
+                *outLayerCount = tmpLayerCount;
+            });
+
+    return error;
+}
+
+Error Mapper::getProducerUsage(buffer_handle_t handle,
+    uint64_t* outProducerUsage) const
+{
+    Error error = kDefaultError;
+    mMapper->getProducerUsageMask(handle,
+            [&](const auto& tmpError, const auto& tmpProducerUsage)
+            {
+                error = tmpError;
+                if (error != Error::NONE) {
+                    return;
+                }
+
+                *outProducerUsage = tmpProducerUsage;
+            });
+
+    return error;
+}
+
+Error Mapper::getConsumerUsage(buffer_handle_t handle,
+        uint64_t* outConsumerUsage) const
+{
+    Error error = kDefaultError;
+    mMapper->getConsumerUsageMask(handle,
+            [&](const auto& tmpError, const auto& tmpConsumerUsage)
+            {
+                error = tmpError;
+                if (error != Error::NONE) {
+                    return;
+                }
+
+                *outConsumerUsage = tmpConsumerUsage;
+            });
+
+    return error;
+}
+
+Error Mapper::getBackingStore(buffer_handle_t handle,
+        uint64_t* outBackingStore) const
+{
+    Error error = kDefaultError;
+    mMapper->getBackingStore(handle,
+            [&](const auto& tmpError, const auto& tmpStore)
+            {
+                error = tmpError;
+                if (error != Error::NONE) {
+                    return;
+                }
+
+                *outBackingStore = tmpStore;
+            });
+
+    return error;
+}
+
 Error Mapper::getStride(buffer_handle_t handle, uint32_t* outStride) const
 {
     Error error = kDefaultError;
@@ -69,8 +178,8 @@
 }
 
 Error Mapper::lock(buffer_handle_t handle,
-        uint64_t producerUsageMask,
-        uint64_t consumerUsageMask,
+        uint64_t producerUsage,
+        uint64_t consumerUsage,
         const IMapper::Rect& accessRegion,
         int acquireFence, void** outData) const
 {
@@ -84,7 +193,7 @@
     }
 
     Error error = kDefaultError;
-    mMapper->lock(handle, producerUsageMask, consumerUsageMask,
+    mMapper->lock(handle, producerUsage, consumerUsage,
             accessRegion, acquireFenceHandle,
             [&](const auto& tmpError, const auto& tmpData)
             {
@@ -104,8 +213,8 @@
 }
 
 Error Mapper::lock(buffer_handle_t handle,
-        uint64_t producerUsageMask,
-        uint64_t consumerUsageMask,
+        uint64_t producerUsage,
+        uint64_t consumerUsage,
         const IMapper::Rect& accessRegion,
         int acquireFence, FlexLayout* outLayout) const
 {
@@ -119,7 +228,7 @@
     }
 
     Error error = kDefaultError;
-    mMapper->lockFlex(handle, producerUsageMask, consumerUsageMask,
+    mMapper->lockFlex(handle, producerUsage, consumerUsage,
             accessRegion, acquireFenceHandle,
             [&](const auto& tmpError, const auto& tmpLayout)
             {
diff --git a/libs/ui/GraphicBufferMapper.cpp b/libs/ui/GraphicBufferMapper.cpp
index f03a307..b0ed2df 100644
--- a/libs/ui/GraphicBufferMapper.cpp
+++ b/libs/ui/GraphicBufferMapper.cpp
@@ -117,6 +117,140 @@
     return outRect;
 }
 
+
+status_t GraphicBufferMapper::getDimensions(buffer_handle_t handle,
+        uint32_t* outWidth, uint32_t* outHeight) const
+{
+    ATRACE_CALL();
+
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        mMapper->getDimensions(handle, outWidth, outHeight);
+        error = GRALLOC1_ERROR_NONE;
+    } else {
+        error = mDevice->getDimensions(handle, outWidth, outHeight);
+    }
+
+    ALOGW_IF(error != GRALLOC1_ERROR_NONE, "getDimensions(%p, ...): failed %d",
+            handle, error);
+
+    return error;
+}
+
+status_t GraphicBufferMapper::getFormat(buffer_handle_t handle,
+        int32_t* outFormat) const
+{
+    ATRACE_CALL();
+
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        mMapper->getFormat(handle, outFormat);
+        error = GRALLOC1_ERROR_NONE;
+    } else {
+        error = mDevice->getFormat(handle, outFormat);
+    }
+
+    ALOGW_IF(error != GRALLOC1_ERROR_NONE, "getFormat(%p, ...): failed %d",
+            handle, error);
+
+    return error;
+}
+
+status_t GraphicBufferMapper::getLayerCount(buffer_handle_t handle,
+        uint32_t* outLayerCount) const
+{
+    ATRACE_CALL();
+
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        mMapper->getLayerCount(handle, outLayerCount);
+        error = GRALLOC1_ERROR_NONE;
+    } else {
+        error = mDevice->getLayerCount(handle, outLayerCount);
+    }
+
+    ALOGW_IF(error != GRALLOC1_ERROR_NONE, "getLayerCount(%p, ...): failed %d",
+            handle, error);
+
+    return error;
+}
+
+status_t GraphicBufferMapper::getProducerUsage(buffer_handle_t handle,
+        uint64_t* outProducerUsage) const
+{
+    ATRACE_CALL();
+
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        mMapper->getProducerUsage(handle, outProducerUsage);
+        error = GRALLOC1_ERROR_NONE;
+    } else {
+        error = mDevice->getProducerUsage(handle, outProducerUsage);
+    }
+
+    ALOGW_IF(error != GRALLOC1_ERROR_NONE,
+            "getProducerUsage(%p, ...): failed %d", handle, error);
+
+    return error;
+}
+
+status_t GraphicBufferMapper::getConsumerUsage(buffer_handle_t handle,
+        uint64_t* outConsumerUsage) const
+{
+    ATRACE_CALL();
+
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        mMapper->getConsumerUsage(handle, outConsumerUsage);
+        error = GRALLOC1_ERROR_NONE;
+    } else {
+        error = mDevice->getConsumerUsage(handle, outConsumerUsage);
+    }
+
+    ALOGW_IF(error != GRALLOC1_ERROR_NONE,
+            "getConsumerUsage(%p, ...): failed %d", handle, error);
+
+    return error;
+}
+
+status_t GraphicBufferMapper::getBackingStore(buffer_handle_t handle,
+        uint64_t* outBackingStore) const
+{
+    ATRACE_CALL();
+
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        mMapper->getBackingStore(handle, outBackingStore);
+        error = GRALLOC1_ERROR_NONE;
+    } else {
+        error = mDevice->getBackingStore(handle, outBackingStore);
+    }
+
+    ALOGW_IF(error != GRALLOC1_ERROR_NONE,
+            "getBackingStore(%p, ...): failed %d", handle, error);
+
+    return error;
+}
+
+status_t GraphicBufferMapper::getStride(buffer_handle_t handle,
+        uint32_t* outStride) const
+{
+    ATRACE_CALL();
+
+    gralloc1_error_t error;
+    if (mMapper->valid()) {
+        mMapper->getStride(handle, outStride);
+        error = GRALLOC1_ERROR_NONE;
+    } else {
+        error = mDevice->getStride(handle, outStride);
+    }
+
+    ALOGW_IF(error != GRALLOC1_ERROR_NONE, "getStride(%p, ...): failed %d",
+            handle, error);
+
+    return error;
+}
+
 status_t GraphicBufferMapper::lock(buffer_handle_t handle, uint32_t usage,
         const Rect& bounds, void** vaddr)
 {