diff --git a/graphics/composer/2.1/utils/resources/Android.bp b/graphics/composer/2.1/utils/resources/Android.bp
index 9eb23fa..4052003 100644
--- a/graphics/composer/2.1/utils/resources/Android.bp
+++ b/graphics/composer/2.1/utils/resources/Android.bp
@@ -29,20 +29,15 @@
     vendor_available: true,
     shared_libs: [
         "android.hardware.graphics.composer@2.1",
-        "android.hardware.graphics.mapper@2.0",
-        "android.hardware.graphics.mapper@3.0",
-        "android.hardware.graphics.mapper@4.0",
         "libcutils",
         "libhardware", // TODO remove hwcomposer2.h dependency
         "libhidlbase",
         "liblog",
+        "libui",
         "libutils",
     ],
     export_shared_lib_headers: [
         "android.hardware.graphics.composer@2.1",
-        "android.hardware.graphics.mapper@2.0",
-        "android.hardware.graphics.mapper@3.0",
-        "android.hardware.graphics.mapper@4.0",
         "libhardware",
         "libhidlbase",
         "liblog",
diff --git a/graphics/composer/2.1/utils/resources/ComposerResources.cpp b/graphics/composer/2.1/utils/resources/ComposerResources.cpp
index e52bf71..80bfb7a 100644
--- a/graphics/composer/2.1/utils/resources/ComposerResources.cpp
+++ b/graphics/composer/2.1/utils/resources/ComposerResources.cpp
@@ -18,6 +18,8 @@
 
 #include "composer-resources/2.1/ComposerResources.h"
 
+#include <ui/GraphicBufferMapper.h>
+
 namespace android {
 namespace hardware {
 namespace graphics {
@@ -25,23 +27,10 @@
 namespace V2_1 {
 namespace hal {
 
+ComposerHandleImporter::ComposerHandleImporter() : mMapper{GraphicBufferMapper::get()} {}
+
 bool ComposerHandleImporter::init() {
-    mMapper4 = mapper::V4_0::IMapper::getService();
-    if (mMapper4) {
-        return true;
-    }
-    ALOGI_IF(!mMapper4, "failed to get mapper 4.0 service, falling back to mapper 3.0");
-
-    mMapper3 = mapper::V3_0::IMapper::getService();
-    if (mMapper3) {
-        return true;
-    }
-    ALOGI_IF(!mMapper3, "failed to get mapper 3.0 service, falling back to mapper 2.0");
-
-    mMapper2 = mapper::V2_0::IMapper::getService();
-    ALOGE_IF(!mMapper2, "failed to get mapper 2.0 service");
-
-    return mMapper2 != nullptr;
+    return true;
 }
 
 Error ComposerHandleImporter::importBuffer(const native_handle_t* rawHandle,
@@ -51,51 +40,17 @@
         return Error::NONE;
     }
 
-    const native_handle_t* bufferHandle;
-    if (mMapper2) {
-        mapper::V2_0::Error error;
-        mMapper2->importBuffer(rawHandle, [&](const auto& tmpError, const auto& tmpBufferHandle) {
-            error = tmpError;
-            bufferHandle = static_cast<const native_handle_t*>(tmpBufferHandle);
-        });
-        if (error != mapper::V2_0::Error::NONE) {
-            return Error::NO_RESOURCES;
-        }
+    status_t status = mMapper.importBufferNoValidate(rawHandle, outBufferHandle);
+    if (status == STATUS_OK) {
+        return Error::NONE;
+    } else {
+        return Error::NO_RESOURCES;
     }
-    if (mMapper3) {
-        mapper::V3_0::Error error;
-        mMapper3->importBuffer(rawHandle, [&](const auto& tmpError, const auto& tmpBufferHandle) {
-            error = tmpError;
-            bufferHandle = static_cast<const native_handle_t*>(tmpBufferHandle);
-        });
-        if (error != mapper::V3_0::Error::NONE) {
-            return Error::NO_RESOURCES;
-        }
-    }
-    if (mMapper4) {
-        mapper::V4_0::Error error;
-        mMapper4->importBuffer(rawHandle, [&](const auto& tmpError, const auto& tmpBufferHandle) {
-            error = tmpError;
-            bufferHandle = static_cast<const native_handle_t*>(tmpBufferHandle);
-        });
-        if (error != mapper::V4_0::Error::NONE) {
-            return Error::NO_RESOURCES;
-        }
-    }
-
-    *outBufferHandle = bufferHandle;
-    return Error::NONE;
 }
 
 void ComposerHandleImporter::freeBuffer(const native_handle_t* bufferHandle) {
     if (bufferHandle) {
-        if (mMapper2) {
-            mMapper2->freeBuffer(static_cast<void*>(const_cast<native_handle_t*>(bufferHandle)));
-        } else if (mMapper3) {
-            mMapper3->freeBuffer(static_cast<void*>(const_cast<native_handle_t*>(bufferHandle)));
-        } else if (mMapper4) {
-            mMapper4->freeBuffer(static_cast<void*>(const_cast<native_handle_t*>(bufferHandle)));
-        }
+        mMapper.freeBuffer(bufferHandle);
     }
 }
 
diff --git a/graphics/composer/2.1/utils/resources/include/composer-resources/2.1/ComposerResources.h b/graphics/composer/2.1/utils/resources/include/composer-resources/2.1/ComposerResources.h
index de78a59..9838118 100644
--- a/graphics/composer/2.1/utils/resources/include/composer-resources/2.1/ComposerResources.h
+++ b/graphics/composer/2.1/utils/resources/include/composer-resources/2.1/ComposerResources.h
@@ -27,12 +27,10 @@
 
 #include <android/hardware/graphics/composer/2.1/types.h>
 
-#include <android/hardware/graphics/mapper/2.0/IMapper.h>
-#include <android/hardware/graphics/mapper/3.0/IMapper.h>
-#include <android/hardware/graphics/mapper/4.0/IMapper.h>
 #include <log/log.h>
 
 namespace android {
+class GraphicBufferMapper;
 namespace hardware {
 namespace graphics {
 namespace composer {
@@ -42,6 +40,7 @@
 // wrapper for IMapper to import buffers and sideband streams
 class ComposerHandleImporter {
   public:
+    ComposerHandleImporter();
     bool init();
 
     Error importBuffer(const native_handle_t* rawHandle, const native_handle_t** outBufferHandle);
@@ -50,9 +49,7 @@
     void freeStream(const native_handle_t* streamHandle);
 
   private:
-    sp<mapper::V2_0::IMapper> mMapper2;
-    sp<mapper::V3_0::IMapper> mMapper3;
-    sp<mapper::V4_0::IMapper> mMapper4;
+    GraphicBufferMapper& mMapper;
 };
 
 class ComposerHandleCache {
diff --git a/graphics/composer/2.1/utils/vts/Android.bp b/graphics/composer/2.1/utils/vts/Android.bp
index 7b6a0e6..0e0081d 100644
--- a/graphics/composer/2.1/utils/vts/Android.bp
+++ b/graphics/composer/2.1/utils/vts/Android.bp
@@ -34,18 +34,15 @@
         "GraphicsComposerCallback.cpp",
         "TestCommandReader.cpp",
     ],
+    shared_libs: [
+        "libui",
+    ],
     static_libs: [
         "android.hardware.graphics.composer@2.1",
-        "android.hardware.graphics.mapper@2.0-vts",
-        "android.hardware.graphics.mapper@3.0-vts",
-        "android.hardware.graphics.mapper@4.0-vts",
         "libgtest",
     ],
     export_static_lib_headers: [
         "android.hardware.graphics.composer@2.1",
-        "android.hardware.graphics.mapper@2.0-vts",
-        "android.hardware.graphics.mapper@3.0-vts",
-        "android.hardware.graphics.mapper@4.0-vts",
     ],
     header_libs: [
         "android.hardware.graphics.composer@2.1-command-buffer",
diff --git a/graphics/composer/2.1/utils/vts/ComposerVts.cpp b/graphics/composer/2.1/utils/vts/ComposerVts.cpp
index 4603dd1..8b89784 100644
--- a/graphics/composer/2.1/utils/vts/ComposerVts.cpp
+++ b/graphics/composer/2.1/utils/vts/ComposerVts.cpp
@@ -308,113 +308,6 @@
     writer->reset();
 }
 
-NativeHandleWrapper::~NativeHandleWrapper() {
-    if (mHandle) {
-        mGralloc.freeBuffer(mHandle);
-    }
-}
-
-Gralloc::Gralloc() {
-    [this] {
-        ASSERT_NO_FATAL_FAILURE(mGralloc4 = std::make_shared<Gralloc4>(
-                                        /*aidlAllocatorServiceName*/ IAllocator::descriptor +
-                                                std::string("/default"),
-                                        /*hidlAllocatorServiceName*/ "default",
-                                        /*mapperServiceName*/ "default",
-                                        /*errOnFailure=*/false));
-        if (!mGralloc4->hasAllocator() || mGralloc4->getMapper() == nullptr) {
-            mGralloc4 = nullptr;
-            ASSERT_NO_FATAL_FAILURE(mGralloc3 = std::make_shared<Gralloc3>("default", "default",
-                                                                           /*errOnFailure=*/false));
-            if (mGralloc3->getAllocator() == nullptr || mGralloc3->getMapper() == nullptr) {
-                mGralloc3 = nullptr;
-                ASSERT_NO_FATAL_FAILURE(mGralloc2 = std::make_shared<Gralloc2>());
-            }
-        }
-    }();
-}
-
-const NativeHandleWrapper Gralloc::allocate(uint32_t width, uint32_t height, uint32_t layerCount,
-                                            PixelFormat format, uint64_t usage, bool import,
-                                            uint32_t* outStride) {
-    const native_handle_t* handle;
-    if (mGralloc4) {
-        IMapper4::BufferDescriptorInfo info{};
-        info.width = width;
-        info.height = height;
-        info.layerCount = layerCount;
-        info.format = static_cast<android::hardware::graphics::common::V1_2::PixelFormat>(format);
-        info.usage = usage;
-        handle = mGralloc4->allocate(info, import, outStride);
-    } else if (mGralloc3) {
-        IMapper3::BufferDescriptorInfo info{};
-        info.width = width;
-        info.height = height;
-        info.layerCount = layerCount;
-        info.format = static_cast<android::hardware::graphics::common::V1_2::PixelFormat>(format);
-        info.usage = usage;
-        handle = mGralloc3->allocate(info, import, outStride);
-    } else {
-        IMapper2::BufferDescriptorInfo info{};
-        info.width = width;
-        info.height = height;
-        info.layerCount = layerCount;
-        info.format = format;
-        info.usage = usage;
-        handle = mGralloc2->allocate(info, import, outStride);
-    }
-    return NativeHandleWrapper(*this, handle);
-}
-
-void* Gralloc::lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
-                    const AccessRegion& accessRegionRect, int acquireFence) {
-    if (mGralloc4) {
-        IMapper4::Rect accessRegion;
-        accessRegion.left = accessRegionRect.left;
-        accessRegion.top = accessRegionRect.top;
-        accessRegion.width = accessRegionRect.width;
-        accessRegion.height = accessRegionRect.height;
-        return mGralloc4->lock(bufferHandle, cpuUsage, accessRegion, acquireFence);
-    } else if (mGralloc3) {
-        IMapper3::Rect accessRegion;
-        accessRegion.left = accessRegionRect.left;
-        accessRegion.top = accessRegionRect.top;
-        accessRegion.width = accessRegionRect.width;
-        accessRegion.height = accessRegionRect.height;
-        int32_t bytesPerPixel;
-        int32_t bytesPerStride;
-        return mGralloc3->lock(bufferHandle, cpuUsage, accessRegion, acquireFence, &bytesPerPixel,
-                               &bytesPerStride);
-    } else {
-        IMapper2::Rect accessRegion;
-        accessRegion.left = accessRegionRect.left;
-        accessRegion.top = accessRegionRect.top;
-        accessRegion.width = accessRegionRect.width;
-        accessRegion.height = accessRegionRect.height;
-        return mGralloc2->lock(bufferHandle, cpuUsage, accessRegion, acquireFence);
-    }
-}
-
-int Gralloc::unlock(const native_handle_t* bufferHandle) {
-    if (mGralloc4) {
-        return mGralloc4->unlock(bufferHandle);
-    } else if (mGralloc3) {
-        return mGralloc3->unlock(bufferHandle);
-    } else {
-        return mGralloc2->unlock(bufferHandle);
-    }
-}
-
-void Gralloc::freeBuffer(const native_handle_t* bufferHandle) {
-    if (mGralloc4) {
-        mGralloc4->freeBuffer(bufferHandle);
-    } else if (mGralloc3) {
-        mGralloc3->freeBuffer(bufferHandle);
-    } else {
-        mGralloc2->freeBuffer(bufferHandle);
-    }
-}
-
 }  // namespace vts
 }  // namespace V2_1
 }  // namespace composer
diff --git a/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h b/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h
index f8ea661..c0aacb5 100644
--- a/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h
+++ b/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h
@@ -25,9 +25,6 @@
 #include <android/hardware/graphics/composer/2.1/IComposer.h>
 #include <composer-command-buffer/2.1/ComposerCommandBuffer.h>
 #include <composer-vts/2.1/TestCommandReader.h>
-#include <mapper-vts/2.0/MapperVts.h>
-#include <mapper-vts/3.0/MapperVts.h>
-#include <mapper-vts/4.0/MapperVts.h>
 #include <utils/StrongPointer.h>
 
 #include "gtest/gtest.h"
@@ -43,13 +40,6 @@
 using android::hardware::graphics::common::V1_0::Dataspace;
 using android::hardware::graphics::common::V1_0::Hdr;
 using android::hardware::graphics::common::V1_0::PixelFormat;
-using IMapper2 = android::hardware::graphics::mapper::V2_0::IMapper;
-using IMapper3 = android::hardware::graphics::mapper::V3_0::IMapper;
-using IMapper4 = android::hardware::graphics::mapper::V4_0::IMapper;
-using Gralloc2 = android::hardware::graphics::mapper::V2_0::vts::Gralloc;
-using Gralloc3 = android::hardware::graphics::mapper::V3_0::vts::Gralloc;
-using Gralloc4 = android::hardware::graphics::mapper::V4_0::vts::Gralloc;
-using IAllocator = aidl::android::hardware::graphics::allocator::IAllocator;
 
 class ComposerClient;
 
@@ -129,52 +119,6 @@
     const sp<IComposerClient> mClient;
 };
 
-class AccessRegion {
-  public:
-    int32_t left;
-    int32_t top;
-    int32_t width;
-    int32_t height;
-};
-
-class Gralloc;
-
-// RAII wrapper around native_handle_t*
-class NativeHandleWrapper {
-  public:
-    NativeHandleWrapper(Gralloc& gralloc, const native_handle_t* handle)
-        : mGralloc(gralloc), mHandle(handle) {}
-
-    ~NativeHandleWrapper();
-
-    const native_handle_t* get() { return mHandle; }
-
-  private:
-    Gralloc& mGralloc;
-    const native_handle_t* mHandle;
-};
-
-class Gralloc {
-  public:
-    explicit Gralloc();
-
-    const NativeHandleWrapper allocate(uint32_t width, uint32_t height, uint32_t layerCount,
-                                       PixelFormat format, uint64_t usage, bool import = true,
-                                       uint32_t* outStride = nullptr);
-
-    void* lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
-               const AccessRegion& accessRegionRect, int acquireFence);
-
-    int unlock(const native_handle_t* bufferHandle);
-
-    void freeBuffer(const native_handle_t* bufferHandle);
-
-  protected:
-    std::shared_ptr<Gralloc2> mGralloc2 = nullptr;
-    std::shared_ptr<Gralloc3> mGralloc3 = nullptr;
-    std::shared_ptr<Gralloc4> mGralloc4 = nullptr;
-};
-
 }  // namespace vts
 }  // namespace V2_1
 }  // namespace composer