diff --git a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/Composer.h b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/Composer.h
index 581dc96..ad985da 100644
--- a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/Composer.h
+++ b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/Composer.h
@@ -80,7 +80,8 @@
 
     Return<void> createClient(IComposer::createClient_cb hidl_cb) override {
         std::unique_lock<std::mutex> lock(mClientMutex);
-        if (!waitForClientDestroyedLocked(lock)) {
+        bool destroyed = waitForClientDestroyedLocked(lock);
+        if (!destroyed) {
             hidl_cb(Error::NO_RESOURCES, nullptr);
             return Void();
         }
diff --git a/graphics/composer/2.1/utils/vts/Android.bp b/graphics/composer/2.1/utils/vts/Android.bp
index 846cfdf..fcb327f 100644
--- a/graphics/composer/2.1/utils/vts/Android.bp
+++ b/graphics/composer/2.1/utils/vts/Android.bp
@@ -25,6 +25,8 @@
     static_libs: [
         "VtsHalHidlTargetTestBase",
         "android.hardware.graphics.composer@2.1",
+        "android.hardware.graphics.mapper@2.0-vts",
+        "android.hardware.graphics.mapper@3.0-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 7ba67d4..c5d5823 100644
--- a/graphics/composer/2.1/utils/vts/ComposerVts.cpp
+++ b/graphics/composer/2.1/utils/vts/ComposerVts.cpp
@@ -315,6 +315,77 @@
     writer->reset();
 }
 
+Gralloc::Gralloc() {
+    [this] {
+        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 native_handle_t* Gralloc::allocate(uint32_t width, uint32_t height, uint32_t layerCount,
+                                         PixelFormat format, uint64_t usage, bool import,
+                                         uint32_t* outStride) {
+    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;
+        return mGralloc3->allocate(info, import, outStride);
+    } else {
+        IMapper2::BufferDescriptorInfo info{};
+        info.width = width;
+        info.height = height;
+        info.layerCount = layerCount;
+        info.format = format;
+        info.usage = usage;
+        return mGralloc2->allocate(info, import, outStride);
+    }
+}
+
+void* Gralloc::lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
+                    const AccessRegion& accessRegionRect, int acquireFence) {
+    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 (mGralloc3) {
+        return mGralloc3->unlock(bufferHandle);
+    } else {
+        return mGralloc2->unlock(bufferHandle);
+    }
+}
+
+void Gralloc::freeBuffer(const native_handle_t* bufferHandle) {
+    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 c97be76..7811048 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
@@ -25,8 +25,12 @@
 #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 <utils/StrongPointer.h>
 
+#include "gtest/gtest.h"
+
 namespace android {
 namespace hardware {
 namespace graphics {
@@ -38,6 +42,10 @@
 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 Gralloc2 = android::hardware::graphics::mapper::V2_0::vts::Gralloc;
+using Gralloc3 = android::hardware::graphics::mapper::V3_0::vts::Gralloc;
 
 class ComposerClient;
 
@@ -119,6 +127,34 @@
     const sp<IComposerClient> mClient;
 };
 
+class AccessRegion {
+  public:
+    int32_t left;
+    int32_t top;
+    int32_t width;
+    int32_t height;
+};
+
+class Gralloc {
+  public:
+    explicit Gralloc();
+
+    const native_handle_t* 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;
+};
+
 }  // namespace vts
 }  // namespace V2_1
 }  // namespace composer
diff --git a/graphics/composer/2.1/vts/functional/Android.bp b/graphics/composer/2.1/vts/functional/Android.bp
index c98cc0d..d54da60 100644
--- a/graphics/composer/2.1/vts/functional/Android.bp
+++ b/graphics/composer/2.1/vts/functional/Android.bp
@@ -26,10 +26,13 @@
     ],
     static_libs: [
         "android.hardware.graphics.allocator@2.0",
+        "android.hardware.graphics.allocator@3.0",
         "android.hardware.graphics.composer@2.1",
         "android.hardware.graphics.composer@2.1-vts",
         "android.hardware.graphics.mapper@2.0",
         "android.hardware.graphics.mapper@2.0-vts",
+        "android.hardware.graphics.mapper@3.0",
+        "android.hardware.graphics.mapper@3.0-vts",
     ],
     header_libs: [
         "android.hardware.graphics.composer@2.1-command-buffer",
diff --git a/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp b/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
index 3c408b7..30b9694 100644
--- a/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
+++ b/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
@@ -21,6 +21,7 @@
 #include <composer-vts/2.1/GraphicsComposerCallback.h>
 #include <composer-vts/2.1/TestCommandReader.h>
 #include <mapper-vts/2.0/MapperVts.h>
+#include <mapper-vts/3.0/MapperVts.h>
 
 #include <VtsHalHidlTargetTestBase.h>
 #include <VtsHalHidlTargetTestEnvBase.h>
@@ -47,8 +48,6 @@
 using android::hardware::graphics::common::V1_0::Dataspace;
 using android::hardware::graphics::common::V1_0::PixelFormat;
 using android::hardware::graphics::common::V1_0::Transform;
-using android::hardware::graphics::mapper::V2_0::IMapper;
-using android::hardware::graphics::mapper::V2_0::vts::Gralloc;
 using GrallocError = android::hardware::graphics::mapper::V2_0::Error;
 
 // Test environment for graphics.composer
@@ -669,7 +668,6 @@
         ASSERT_NO_FATAL_FAILURE(GraphicsComposerHidlTest::SetUp());
 
         ASSERT_NO_FATAL_FAILURE(mGralloc = std::make_unique<Gralloc>());
-
         Config activeConfig = mComposerClient->getActiveConfig(mPrimaryDisplay);
         mDisplayWidth = mComposerClient->getDisplayAttribute(mPrimaryDisplay, activeConfig,
                                                              IComposerClient::Attribute::WIDTH);
@@ -685,16 +683,10 @@
     }
 
     const native_handle_t* allocate() {
-        IMapper::BufferDescriptorInfo info{};
-        info.width = mDisplayWidth;
-        info.height = mDisplayHeight;
-        info.layerCount = 1;
-        info.format = PixelFormat::RGBA_8888;
-        info.usage =
-            static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN |
-                                  BufferUsage::COMPOSER_OVERLAY);
-
-        return mGralloc->allocate(info);
+        uint64_t usage =
+                static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN |
+                                      BufferUsage::COMPOSER_OVERLAY);
+        return mGralloc->allocate(mDisplayWidth, mDisplayHeight, 1, PixelFormat::RGBA_8888, usage);
     }
 
     void execute() { mComposerClient->execute(mReader.get(), mWriter.get()); }
@@ -705,7 +697,7 @@
     int32_t mDisplayHeight;
 
    private:
-    std::unique_ptr<Gralloc> mGralloc;
+     std::unique_ptr<Gralloc> mGralloc;
 };
 
 /**
diff --git a/graphics/composer/2.2/utils/vts/Android.bp b/graphics/composer/2.2/utils/vts/Android.bp
index c6b524d..dd979cb 100644
--- a/graphics/composer/2.2/utils/vts/Android.bp
+++ b/graphics/composer/2.2/utils/vts/Android.bp
@@ -25,6 +25,10 @@
         "android.hardware.graphics.composer@2.1",
         "android.hardware.graphics.composer@2.1-vts",
         "android.hardware.graphics.composer@2.2",
+        "android.hardware.graphics.mapper@2.1",
+        "android.hardware.graphics.mapper@2.1-vts",
+        "android.hardware.graphics.mapper@3.0",
+        "android.hardware.graphics.mapper@3.0-vts",
     ],
     export_static_lib_headers: [
         "android.hardware.graphics.composer@2.1-vts",
diff --git a/graphics/composer/2.2/utils/vts/ComposerVts.cpp b/graphics/composer/2.2/utils/vts/ComposerVts.cpp
index da99460..cd6772a 100644
--- a/graphics/composer/2.2/utils/vts/ComposerVts.cpp
+++ b/graphics/composer/2.2/utils/vts/ComposerVts.cpp
@@ -180,6 +180,48 @@
     return matrix;
 }
 
+Gralloc::Gralloc() {
+    [this] {
+        ALOGD("Attempting to initialize gralloc3");
+        ASSERT_NO_FATAL_FAILURE(mGralloc3 = std::make_shared<Gralloc3>("default", "default",
+                                                                       /*errOnFailure=*/false));
+        if (mGralloc3->getMapper() == nullptr || mGralloc3->getAllocator() == nullptr) {
+            mGralloc3 = nullptr;
+            ALOGD("Failed to create gralloc3, initializing gralloc2_1");
+            mGralloc2_1 = std::make_shared<Gralloc2_1>(/*errOnFailure*/ false);
+            if (!mGralloc2_1->getMapper()) {
+                mGralloc2_1 = nullptr;
+                ALOGD("Failed to create gralloc2_1, initializing gralloc2");
+                ASSERT_NO_FATAL_FAILURE(mGralloc2 = std::make_shared<Gralloc2>());
+            }
+        }
+    }();
+}
+
+bool Gralloc::validateBufferSize(const native_handle_t* bufferHandle, uint32_t width,
+                                 uint32_t height, uint32_t layerCount, PixelFormat format,
+                                 uint64_t usage, uint32_t stride) {
+    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;
+        return mGralloc3->validateBufferSize(bufferHandle, info, stride);
+    } else if (mGralloc2_1) {
+        IMapper2_1::BufferDescriptorInfo info{};
+        info.width = width;
+        info.height = height;
+        info.layerCount = layerCount;
+        info.format = static_cast<android::hardware::graphics::common::V1_1::PixelFormat>(format);
+        info.usage = usage;
+        return mGralloc2_1->validateBufferSize(bufferHandle, info, stride);
+    } else {
+        return true;
+    }
+}
+
 }  // namespace vts
 }  // namespace V2_2
 }  // namespace composer
diff --git a/graphics/composer/2.2/utils/vts/include/composer-vts/2.2/ComposerVts.h b/graphics/composer/2.2/utils/vts/include/composer-vts/2.2/ComposerVts.h
index 2633021..8fa9b7b 100644
--- a/graphics/composer/2.2/utils/vts/include/composer-vts/2.2/ComposerVts.h
+++ b/graphics/composer/2.2/utils/vts/include/composer-vts/2.2/ComposerVts.h
@@ -27,6 +27,7 @@
 #include <android/hardware/graphics/composer/2.2/IComposerClient.h>
 #include <composer-command-buffer/2.2/ComposerCommandBuffer.h>
 #include <composer-vts/2.1/ComposerVts.h>
+#include <mapper-vts/2.1/MapperVts.h>
 #include <utils/StrongPointer.h>
 
 namespace android {
@@ -41,6 +42,11 @@
 using common::V1_1::Dataspace;
 using common::V1_1::PixelFormat;
 using common::V1_1::RenderIntent;
+using IMapper2_1 = android::hardware::graphics::mapper::V2_1::IMapper;
+using IMapper3 = android::hardware::graphics::mapper::V3_0::IMapper;
+using Gralloc2 = android::hardware::graphics::mapper::V2_0::vts::Gralloc;
+using Gralloc2_1 = android::hardware::graphics::mapper::V2_1::vts::Gralloc;
+using Gralloc3 = android::hardware::graphics::mapper::V3_0::vts::Gralloc;
 
 class ComposerClient;
 
@@ -84,6 +90,26 @@
     const sp<IComposerClient> mClient;
 };
 
+class Gralloc : public V2_1::vts::Gralloc {
+  public:
+    Gralloc();
+    const native_handle_t* allocate(uint32_t width, uint32_t height, uint32_t layerCount,
+                                    PixelFormat format, uint64_t usage, bool import = true,
+                                    uint32_t* outStride = nullptr) {
+        return V2_1::vts::Gralloc::allocate(
+                width, height, layerCount,
+                static_cast<android::hardware::graphics::common::V1_0::PixelFormat>(format), usage,
+                import, outStride);
+    }
+
+    bool validateBufferSize(const native_handle_t* bufferHandle, uint32_t width, uint32_t height,
+                            uint32_t layerCount, PixelFormat format, uint64_t usage,
+                            uint32_t stride);
+
+  protected:
+    std::shared_ptr<Gralloc2_1> mGralloc2_1 = nullptr;
+};
+
 }  // namespace vts
 }  // namespace V2_2
 }  // namespace composer
diff --git a/graphics/composer/2.2/vts/functional/Android.bp b/graphics/composer/2.2/vts/functional/Android.bp
index 4cb0bdf..9f7e1cd 100644
--- a/graphics/composer/2.2/vts/functional/Android.bp
+++ b/graphics/composer/2.2/vts/functional/Android.bp
@@ -31,6 +31,7 @@
     ],
     static_libs: [
         "android.hardware.graphics.allocator@2.0",
+        "android.hardware.graphics.allocator@3.0",
         "android.hardware.graphics.common@1.1",
         "android.hardware.graphics.composer@2.1",
         "android.hardware.graphics.composer@2.1-vts",
@@ -40,6 +41,8 @@
         "android.hardware.graphics.mapper@2.0-vts",
         "android.hardware.graphics.mapper@2.1",
         "android.hardware.graphics.mapper@2.1-vts",
+        "android.hardware.graphics.mapper@3.0",
+        "android.hardware.graphics.mapper@3.0-vts",
     ],
     header_libs: [
         "android.hardware.graphics.composer@2.1-command-buffer",
diff --git a/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2ReadbackTest.cpp b/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2ReadbackTest.cpp
index da8858e..0648b34 100644
--- a/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2ReadbackTest.cpp
+++ b/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2ReadbackTest.cpp
@@ -39,9 +39,9 @@
 using common::V1_1::Dataspace;
 using common::V1_1::PixelFormat;
 using mapper::V2_1::IMapper;
-using mapper::V2_1::vts::Gralloc;
 using V2_1::Display;
 using V2_1::Layer;
+using V2_1::vts::AccessRegion;
 using V2_1::vts::TestCommandReader;
 
 static const IComposerClient::Color BLACK = {0, 0, 0, 0xff};
@@ -296,14 +296,13 @@
         mComposerClient = client;
         mGralloc = gralloc;
 
-        mPixelFormat = pixelFormat;
+        mFormat = pixelFormat;
         mDataspace = dataspace;
 
-        mInfo.width = width;
-        mInfo.height = height;
-        mInfo.layerCount = 1;
-        mInfo.format = mPixelFormat;
-        mInfo.usage = static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::GPU_TEXTURE);
+        mWidth = width;
+        mHeight = height;
+        mLayerCount = 1;
+        mUsage = static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::GPU_TEXTURE);
 
         mAccessRegion.top = 0;
         mAccessRegion.left = 0;
@@ -322,8 +321,10 @@
             mGralloc->freeBuffer(mBufferHandle);
             mBufferHandle = nullptr;
         }
-        mBufferHandle = mGralloc->allocate(mInfo, /*import*/ true, &mStride);
-        ASSERT_NE(false, mGralloc->validateBufferSize(mBufferHandle, mInfo, mStride));
+        mBufferHandle = mGralloc->allocate(mWidth, mHeight, mLayerCount, mFormat, mUsage,
+                                           /*import*/ true, &mStride);
+        ASSERT_NE(false, mGralloc->validateBufferSize(mBufferHandle, mWidth, mHeight, mLayerCount,
+                                                      mFormat, mUsage, mStride));
         ASSERT_NO_FATAL_FAILURE(mComposerClient->setReadbackBuffer(mDisplay, mBufferHandle, -1));
     }
 
@@ -332,13 +333,13 @@
         int32_t fenceHandle;
         ASSERT_NO_FATAL_FAILURE(mComposerClient->getReadbackBufferFence(mDisplay, &fenceHandle));
 
-        void* bufData = mGralloc->lock(mBufferHandle, mInfo.usage, mAccessRegion, fenceHandle);
-        ASSERT_TRUE(mPixelFormat == PixelFormat::RGB_888 || mPixelFormat == PixelFormat::RGBA_8888);
-        int32_t bytesPerPixel = GraphicsComposerReadbackTest::GetBytesPerPixel(mPixelFormat);
+        void* bufData = mGralloc->lock(mBufferHandle, mUsage, mAccessRegion, fenceHandle);
+        ASSERT_TRUE(mFormat == PixelFormat::RGB_888 || mFormat == PixelFormat::RGBA_8888);
+        int32_t bytesPerPixel = GraphicsComposerReadbackTest::GetBytesPerPixel(mFormat);
         ASSERT_NE(-1, bytesPerPixel);
-        for (int row = 0; row < mInfo.height; row++) {
-            for (int col = 0; col < mInfo.width; col++) {
-                int pixel = row * mInfo.width + col;
+        for (int row = 0; row < mHeight; row++) {
+            for (int col = 0; col < mWidth; col++) {
+                int pixel = row * mWidth + col;
                 int offset = (row * mStride + col) * bytesPerPixel;
                 uint8_t* pixelColor = (uint8_t*)bufData + offset;
 
@@ -354,12 +355,16 @@
         }
     }
 
-   protected:
-    IMapper::BufferDescriptorInfo mInfo;
-    IMapper::Rect mAccessRegion;
+    uint32_t mWidth;
+    uint32_t mHeight;
+    uint32_t mLayerCount;
+    PixelFormat mFormat;
+    uint64_t mUsage;
+    AccessRegion mAccessRegion;
+
+  protected:
     uint32_t mStride;
     const native_handle_t* mBufferHandle = nullptr;
-    PixelFormat mPixelFormat;
     Dataspace mDataspace;
     Display mDisplay;
     std::shared_ptr<Gralloc> mGralloc;
@@ -392,13 +397,12 @@
         : TestLayer{client, display} {
         mGralloc = gralloc;
         mComposition = composition;
-        mInfo.width = width;
-        mInfo.height = height;
-        mInfo.layerCount = 1;
-        mInfo.format = format;
-        mInfo.usage =
-            static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
-                                  BufferUsage::COMPOSER_OVERLAY);
+        mWidth = width;
+        mHeight = height;
+        mLayerCount = 1;
+        mFormat = format;
+        mUsage = static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
+                                       BufferUsage::COMPOSER_OVERLAY);
 
         mAccessRegion.top = 0;
         mAccessRegion.left = 0;
@@ -423,9 +427,9 @@
     }
 
     void fillBuffer(std::vector<IComposerClient::Color> expectedColors) {
-        void* bufData = mGralloc->lock(mBufferHandle, mInfo.usage, mAccessRegion, -1);
+        void* bufData = mGralloc->lock(mBufferHandle, mUsage, mAccessRegion, -1);
         ASSERT_NO_FATAL_FAILURE(GraphicsComposerReadbackTest::fillBuffer(
-            mInfo.width, mInfo.height, mStride, bufData, mInfo.format, expectedColors));
+                mWidth, mHeight, mStride, bufData, mFormat, expectedColors));
         mFillFence = mGralloc->unlock(mBufferHandle);
         if (mFillFence != -1) {
             sync_wait(mFillFence, -1);
@@ -437,10 +441,12 @@
             mGralloc->freeBuffer(mBufferHandle);
             mBufferHandle = nullptr;
         }
-        mBufferHandle = mGralloc->allocate(mInfo, /*import*/ true, &mStride);
+        mBufferHandle = mGralloc->allocate(mWidth, mHeight, mLayerCount, mFormat, mUsage,
+                                           /*import*/ true, &mStride);
         ASSERT_NE(nullptr, mBufferHandle);
         ASSERT_NO_FATAL_FAILURE(fillBuffer(colors));
-        ASSERT_NE(false, mGralloc->validateBufferSize(mBufferHandle, mInfo, mStride));
+        ASSERT_NE(false, mGralloc->validateBufferSize(mBufferHandle, mWidth, mHeight, mLayerCount,
+                                                      mFormat, mUsage, mStride));
     }
 
     void setToClientComposition(const std::shared_ptr<CommandWriterBase>& writer) {
@@ -448,11 +454,15 @@
         writer->setLayerCompositionType(IComposerClient::Composition::CLIENT);
     }
 
-    IMapper::BufferDescriptorInfo mInfo;
-    IMapper::Rect mAccessRegion;
+    AccessRegion mAccessRegion;
     uint32_t mStride;
+    uint32_t mWidth;
+    uint32_t mHeight;
+    uint32_t mLayerCount;
+    PixelFormat mFormat;
 
-   protected:
+  protected:
+    uint64_t mUsage;
     IComposerClient::Composition mComposition;
     std::shared_ptr<Gralloc> mGralloc;
     int32_t mFillFence;
@@ -568,14 +578,11 @@
     layer->write(mWriter);
 
     // This following buffer call should have no effect
-    IMapper::BufferDescriptorInfo bufferInfo{};
-    bufferInfo.width = mDisplayWidth;
-    bufferInfo.height = mDisplayHeight;
-    bufferInfo.layerCount = 1;
-    bufferInfo.format = PixelFormat::RGBA_8888;
-    bufferInfo.usage =
-        static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN);
-    const native_handle_t* bufferHandle = mGralloc->allocate(bufferInfo);
+    PixelFormat format = PixelFormat::RGBA_8888;
+    uint64_t usage =
+            static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN);
+    const native_handle_t* bufferHandle =
+            mGralloc->allocate(mDisplayWidth, mDisplayHeight, 1, format, usage);
     mWriter->setLayerBuffer(0, bufferHandle, -1);
 
     // expected color for each pixel
@@ -642,23 +649,20 @@
 
         // create client target buffer
         uint32_t clientStride;
-        IMapper::BufferDescriptorInfo clientInfo;
-        clientInfo.width = layer->mInfo.width;
-        clientInfo.height = layer->mInfo.height;
-        clientInfo.layerCount = layer->mInfo.layerCount;
-        clientInfo.format = PixelFormat::RGBA_8888;
-        clientInfo.usage =
-            static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
-                                  BufferUsage::COMPOSER_CLIENT_TARGET);
+        PixelFormat clientFormat = PixelFormat::RGBA_8888;
+        uint64_t clientUsage =
+                static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
+                                      BufferUsage::COMPOSER_CLIENT_TARGET);
         const native_handle_t* clientBufferHandle =
-            mGralloc->allocate(clientInfo, /*import*/ true, &clientStride);
+                mGralloc->allocate(layer->mWidth, layer->mHeight, layer->mLayerCount, clientFormat,
+                                   clientUsage, /*import*/ true, &clientStride);
         ASSERT_NE(nullptr, clientBufferHandle);
 
         void* clientBufData =
-            mGralloc->lock(clientBufferHandle, clientInfo.usage, layer->mAccessRegion, -1);
+                mGralloc->lock(clientBufferHandle, clientUsage, layer->mAccessRegion, -1);
 
-        ASSERT_NO_FATAL_FAILURE(fillBuffer(clientInfo.width, clientInfo.height, clientStride,
-                                           clientBufData, clientInfo.format, expectedColors));
+        ASSERT_NO_FATAL_FAILURE(fillBuffer(layer->mWidth, layer->mHeight, clientStride,
+                                           clientBufData, clientFormat, expectedColors));
         int clientFence = mGralloc->unlock(clientBufferHandle);
         if (clientFence != -1) {
             sync_wait(clientFence, -1);
@@ -706,14 +710,13 @@
     auto deviceLayer =
         std::make_shared<TestBufferLayer>(mComposerClient, mGralloc, mPrimaryDisplay, mDisplayWidth,
                                           mDisplayHeight / 2, PixelFormat::RGBA_8888);
-    std::vector<IComposerClient::Color> deviceColors(deviceLayer->mInfo.width *
-                                                     deviceLayer->mInfo.height);
-    fillColorsArea(deviceColors, deviceLayer->mInfo.width,
-                   {0, 0, static_cast<int32_t>(deviceLayer->mInfo.width),
-                    static_cast<int32_t>(deviceLayer->mInfo.height)},
+    std::vector<IComposerClient::Color> deviceColors(deviceLayer->mWidth * deviceLayer->mHeight);
+    fillColorsArea(deviceColors, deviceLayer->mWidth,
+                   {0, 0, static_cast<int32_t>(deviceLayer->mWidth),
+                    static_cast<int32_t>(deviceLayer->mHeight)},
                    GREEN);
-    deviceLayer->setDisplayFrame({0, 0, static_cast<int32_t>(deviceLayer->mInfo.width),
-                                  static_cast<int32_t>(deviceLayer->mInfo.height)});
+    deviceLayer->setDisplayFrame({0, 0, static_cast<int32_t>(deviceLayer->mWidth),
+                                  static_cast<int32_t>(deviceLayer->mHeight)});
     deviceLayer->setZOrder(10);
     ASSERT_NO_FATAL_FAILURE(deviceLayer->setBuffer(deviceColors));
     deviceLayer->write(mWriter);
@@ -728,30 +731,25 @@
     execute();
     ASSERT_EQ(0, mReader->mErrors.size());
 
-    IMapper::BufferDescriptorInfo clientInfo;
-    clientInfo.width = mDisplayWidth;
-    clientInfo.height = mDisplayHeight;
-    clientInfo.layerCount = 1;
-    clientInfo.format = PixelFormat::RGBA_8888;
-    clientInfo.usage =
-        static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
-                              BufferUsage::COMPOSER_CLIENT_TARGET);
-
+    uint64_t clientUsage =
+            static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
+                                  BufferUsage::COMPOSER_CLIENT_TARGET);
     uint32_t clientStride;
     const native_handle_t* clientBufferHandle =
-        mGralloc->allocate(clientInfo, /*import*/ true, &clientStride);
+            mGralloc->allocate(mDisplayWidth, mDisplayHeight, 1, PixelFormat::RGBA_8888,
+                               clientUsage, /*import*/ true, &clientStride);
     ASSERT_NE(nullptr, clientBufferHandle);
 
-    IMapper::Rect clientAccessRegion;
+    AccessRegion clientAccessRegion;
     clientAccessRegion.left = 0;
     clientAccessRegion.top = 0;
     clientAccessRegion.width = mDisplayWidth;
     clientAccessRegion.height = mDisplayHeight;
-    void* clientData = mGralloc->lock(clientBufferHandle, clientInfo.usage, clientAccessRegion, -1);
-    std::vector<IComposerClient::Color> clientColors(clientInfo.width * clientInfo.height);
-    fillColorsArea(clientColors, clientInfo.width, clientFrame, RED);
-    ASSERT_NO_FATAL_FAILURE(fillBuffer(clientInfo.width, clientInfo.height, clientStride,
-                                       clientData, clientInfo.format, clientColors));
+    void* clientData = mGralloc->lock(clientBufferHandle, clientUsage, clientAccessRegion, -1);
+    std::vector<IComposerClient::Color> clientColors(mDisplayWidth * mDisplayHeight);
+    fillColorsArea(clientColors, mDisplayWidth, clientFrame, RED);
+    ASSERT_NO_FATAL_FAILURE(fillBuffer(mDisplayWidth, mDisplayHeight, clientStride, clientData,
+                                       PixelFormat::RGBA_8888, clientColors));
     int clientFence = mGralloc->unlock(clientBufferHandle);
     if (clientFence != -1) {
         sync_wait(clientFence, -1);
diff --git a/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2TargetTest.cpp b/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2TargetTest.cpp
index 9c80f4d..51832f9 100644
--- a/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2TargetTest.cpp
+++ b/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2TargetTest.cpp
@@ -40,7 +40,6 @@
 using common::V1_1::PixelFormat;
 using common::V1_1::RenderIntent;
 using mapper::V2_0::IMapper;
-using mapper::V2_0::vts::Gralloc;
 
 // Test environment for graphics.composer
 class GraphicsComposerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
@@ -171,15 +170,10 @@
     }
 
     const native_handle_t* allocate() {
-        IMapper::BufferDescriptorInfo info{};
-        info.width = 64;
-        info.height = 64;
-        info.layerCount = 1;
-        info.format = static_cast<common::V1_0::PixelFormat>(PixelFormat::RGBA_8888);
-        info.usage =
-            static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN);
-
-        return mGralloc->allocate(info);
+        uint64_t usage =
+                static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN);
+        return mGralloc->allocate(/*width*/ 64, /*height*/ 64, /*layerCount*/ 1,
+                                  PixelFormat::RGBA_8888, usage);
     }
 
     void execute() { mComposerClient->execute(mReader.get(), mWriter.get()); }
@@ -456,18 +450,15 @@
         return;
     }
 
-    IMapper::BufferDescriptorInfo info{};
-    info.width = mDisplayWidth;
-    info.height = mDisplayHeight;
-    info.layerCount = 1;
-    info.format = static_cast<common::V1_0::PixelFormat>(mReadbackPixelFormat);
     // BufferUsage::COMPOSER_OUTPUT is missing
-    info.usage = static_cast<uint64_t>(BufferUsage::COMPOSER_OVERLAY | BufferUsage::CPU_READ_OFTEN);
+    uint64_t usage =
+            static_cast<uint64_t>(BufferUsage::COMPOSER_OVERLAY | BufferUsage::CPU_READ_OFTEN);
 
     std::unique_ptr<Gralloc> gralloc;
     const native_handle_t* buffer;
     ASSERT_NO_FATAL_FAILURE(gralloc = std::make_unique<Gralloc>());
-    ASSERT_NO_FATAL_FAILURE(buffer = gralloc->allocate(info));
+    ASSERT_NO_FATAL_FAILURE(buffer = gralloc->allocate(mDisplayWidth, mDisplayHeight, 1,
+                                                       mReadbackPixelFormat, usage));
 
     mComposerClient->setReadbackBuffer(mPrimaryDisplay, buffer, -1);
 }
@@ -483,17 +474,14 @@
         return;
     }
 
-    IMapper::BufferDescriptorInfo info{};
-    info.width = mDisplayWidth;
-    info.height = mDisplayHeight;
-    info.layerCount = 1;
-    info.format = static_cast<common::V1_0::PixelFormat>(mReadbackPixelFormat);
-    info.usage = static_cast<uint64_t>(BufferUsage::COMPOSER_OVERLAY | BufferUsage::CPU_READ_OFTEN);
+    uint64_t usage =
+            static_cast<uint64_t>(BufferUsage::COMPOSER_OVERLAY | BufferUsage::CPU_READ_OFTEN);
 
     std::unique_ptr<Gralloc> gralloc;
     const native_handle_t* buffer;
     ASSERT_NO_FATAL_FAILURE(gralloc = std::make_unique<Gralloc>());
-    ASSERT_NO_FATAL_FAILURE(buffer = gralloc->allocate(info));
+    ASSERT_NO_FATAL_FAILURE(buffer = gralloc->allocate(mDisplayWidth, mDisplayHeight, 1,
+                                                       mReadbackPixelFormat, usage));
 
     Error error = mComposerClient->getRaw()->setReadbackBuffer(mInvalidDisplayId, buffer, nullptr);
     ASSERT_EQ(Error::BAD_DISPLAY, error);
diff --git a/graphics/composer/2.3/utils/vts/Android.bp b/graphics/composer/2.3/utils/vts/Android.bp
index 19438cb..2fe6cd6 100644
--- a/graphics/composer/2.3/utils/vts/Android.bp
+++ b/graphics/composer/2.3/utils/vts/Android.bp
@@ -27,6 +27,12 @@
         "android.hardware.graphics.composer@2.2",
         "android.hardware.graphics.composer@2.2-vts",
         "android.hardware.graphics.composer@2.3",
+	"android.hardware.graphics.mapper@2.0",
+	"android.hardware.graphics.mapper@2.0-vts",
+	"android.hardware.graphics.mapper@2.1",
+	"android.hardware.graphics.mapper@2.1-vts",
+	"android.hardware.graphics.mapper@3.0",
+	"android.hardware.graphics.mapper@3.0-vts",
     ],
     header_libs: [
         "android.hardware.graphics.composer@2.1-command-buffer",
diff --git a/graphics/composer/2.3/vts/functional/Android.bp b/graphics/composer/2.3/vts/functional/Android.bp
index ce675ee..2766638 100644
--- a/graphics/composer/2.3/vts/functional/Android.bp
+++ b/graphics/composer/2.3/vts/functional/Android.bp
@@ -28,6 +28,7 @@
     ],
     static_libs: [
         "android.hardware.graphics.allocator@2.0",
+        "android.hardware.graphics.allocator@3.0",
         "android.hardware.graphics.composer@2.1",
         "android.hardware.graphics.composer@2.1-vts",
         "android.hardware.graphics.composer@2.2",
@@ -37,6 +38,9 @@
         "android.hardware.graphics.mapper@2.0",
         "android.hardware.graphics.mapper@2.0-vts",
         "android.hardware.graphics.mapper@2.1",
+        "android.hardware.graphics.mapper@2.1-vts",
+        "android.hardware.graphics.mapper@3.0",
+        "android.hardware.graphics.mapper@3.0-vts",
     ],
     header_libs: [
         "android.hardware.graphics.composer@2.1-command-buffer",
diff --git a/graphics/composer/2.3/vts/functional/VtsHalGraphicsComposerV2_3TargetTest.cpp b/graphics/composer/2.3/vts/functional/VtsHalGraphicsComposerV2_3TargetTest.cpp
index d51c30a..dafe587 100644
--- a/graphics/composer/2.3/vts/functional/VtsHalGraphicsComposerV2_3TargetTest.cpp
+++ b/graphics/composer/2.3/vts/functional/VtsHalGraphicsComposerV2_3TargetTest.cpp
@@ -41,7 +41,7 @@
 using common::V1_2::Dataspace;
 using common::V1_2::PixelFormat;
 using mapper::V2_0::IMapper;
-using mapper::V2_0::vts::Gralloc;
+using V2_2::vts::Gralloc;
 
 // Test environment for graphics.composer
 class GraphicsComposerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
@@ -156,15 +156,9 @@
     }
 
     const native_handle_t* allocate() {
-        IMapper::BufferDescriptorInfo info{};
-        info.width = 64;
-        info.height = 64;
-        info.layerCount = 1;
-        info.format = static_cast<common::V1_0::PixelFormat>(PixelFormat::RGBA_8888);
-        info.usage =
-            static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN);
-
-        return mGralloc->allocate(info);
+        return mGralloc->allocate(
+                64, 64, 1, static_cast<common::V1_1::PixelFormat>(PixelFormat::RGBA_8888),
+                static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN));
     }
 
     void execute() { mComposerClient->execute(mReader.get(), mWriter.get()); }
diff --git a/graphics/mapper/2.1/utils/vts/MapperVts.cpp b/graphics/mapper/2.1/utils/vts/MapperVts.cpp
index 078068e..36f9cbb 100644
--- a/graphics/mapper/2.1/utils/vts/MapperVts.cpp
+++ b/graphics/mapper/2.1/utils/vts/MapperVts.cpp
@@ -43,24 +43,25 @@
                       offsetof(IMapper::BufferDescriptorInfo, usage),
               "");
 
-Gralloc::Gralloc() : V2_0::vts::Gralloc() {
+Gralloc::Gralloc(bool errOnFailure) : V2_0::vts::Gralloc() {
     if (::testing::Test::HasFatalFailure()) {
         return;
     }
-    init();
+    init(errOnFailure);
 }
 
-Gralloc::Gralloc(const std::string& allocatorServiceName, const std::string& mapperServiceName)
+Gralloc::Gralloc(const std::string& allocatorServiceName, const std::string& mapperServiceName,
+                 bool errOnFailure)
     : V2_0::vts::Gralloc(allocatorServiceName, mapperServiceName) {
     if (::testing::Test::HasFatalFailure()) {
         return;
     }
-    init();
+    init(errOnFailure);
 }
 
-void Gralloc::init() {
+void Gralloc::init(bool errOnFailure) {
     mMapperV2_1 = IMapper::castFrom(V2_0::vts::Gralloc::getMapper());
-    ASSERT_NE(nullptr, mMapperV2_1.get()) << "failed to get mapper 2.1 service";
+    if (errOnFailure) ASSERT_NE(nullptr, mMapperV2_1.get()) << "failed to get mapper 2.1 service";
 }
 
 sp<IMapper> Gralloc::getMapper() const {
diff --git a/graphics/mapper/2.1/utils/vts/include/mapper-vts/2.1/MapperVts.h b/graphics/mapper/2.1/utils/vts/include/mapper-vts/2.1/MapperVts.h
index 423d4b3..bc683bb 100644
--- a/graphics/mapper/2.1/utils/vts/include/mapper-vts/2.1/MapperVts.h
+++ b/graphics/mapper/2.1/utils/vts/include/mapper-vts/2.1/MapperVts.h
@@ -32,25 +32,26 @@
 // A wrapper to IAllocator and IMapper.
 class Gralloc : public V2_0::vts::Gralloc {
    public:
-    Gralloc();
-    Gralloc(const std::string& allocatorServiceName, const std::string& mapperServiceName);
+     Gralloc(bool errOnFailure = true);
+     Gralloc(const std::string& allocatorServiceName, const std::string& mapperServiceName,
+             bool errOnFailure = true);
 
-    sp<IMapper> getMapper() const;
+     sp<IMapper> getMapper() const;
 
-    bool validateBufferSize(const native_handle_t* bufferHandle,
-                            const IMapper::BufferDescriptorInfo& descriptorInfo, uint32_t stride);
-    void getTransportSize(const native_handle_t* bufferHandle, uint32_t* outNumFds,
-                          uint32_t* outNumInts);
+     bool validateBufferSize(const native_handle_t* bufferHandle,
+                             const IMapper::BufferDescriptorInfo& descriptorInfo, uint32_t stride);
+     void getTransportSize(const native_handle_t* bufferHandle, uint32_t* outNumFds,
+                           uint32_t* outNumInts);
 
-    BufferDescriptor createDescriptor(const IMapper::BufferDescriptorInfo& descriptorInfo);
+     BufferDescriptor createDescriptor(const IMapper::BufferDescriptorInfo& descriptorInfo);
 
-    const native_handle_t* allocate(const IMapper::BufferDescriptorInfo& descriptorInfo,
-                                    bool import = true, uint32_t* outStride = nullptr);
+     const native_handle_t* allocate(const IMapper::BufferDescriptorInfo& descriptorInfo,
+                                     bool import = true, uint32_t* outStride = nullptr);
 
    protected:
-    void init();
+     void init(bool errOnFailure = true);
 
-    sp<IMapper> mMapperV2_1;
+     sp<IMapper> mMapperV2_1;
 };
 
 }  // namespace vts
diff --git a/graphics/mapper/3.0/utils/vts/MapperVts.cpp b/graphics/mapper/3.0/utils/vts/MapperVts.cpp
index f2b7594..c94e8db 100644
--- a/graphics/mapper/3.0/utils/vts/MapperVts.cpp
+++ b/graphics/mapper/3.0/utils/vts/MapperVts.cpp
@@ -25,8 +25,13 @@
 namespace V3_0 {
 namespace vts {
 
-Gralloc::Gralloc(const std::string& allocatorServiceName, const std::string& mapperServiceName) {
-    init(allocatorServiceName, mapperServiceName);
+Gralloc::Gralloc(const std::string& allocatorServiceName, const std::string& mapperServiceName,
+                 bool errOnFailure) {
+    if (errOnFailure) {
+        init(allocatorServiceName, mapperServiceName);
+    } else {
+        initNoErr(allocatorServiceName, mapperServiceName);
+    }
 }
 
 void Gralloc::init(const std::string& allocatorServiceName, const std::string& mapperServiceName) {
@@ -38,6 +43,16 @@
     ASSERT_FALSE(mMapper->isRemote()) << "mapper is not in passthrough mode";
 }
 
+void Gralloc::initNoErr(const std::string& allocatorServiceName,
+                        const std::string& mapperServiceName) {
+    mAllocator = ::testing::VtsHalHidlTargetTestBase::getService<IAllocator>(allocatorServiceName);
+
+    mMapper = ::testing::VtsHalHidlTargetTestBase::getService<IMapper>(mapperServiceName);
+    if (mMapper.get()) {
+        ASSERT_FALSE(mMapper->isRemote()) << "mapper is not in passthrough mode";
+    }
+}
+
 Gralloc::~Gralloc() {
     for (auto bufferHandle : mClonedBuffers) {
         auto buffer = const_cast<native_handle_t*>(bufferHandle);
diff --git a/graphics/mapper/3.0/utils/vts/include/mapper-vts/3.0/MapperVts.h b/graphics/mapper/3.0/utils/vts/include/mapper-vts/3.0/MapperVts.h
index ba79ca4..1141a88 100644
--- a/graphics/mapper/3.0/utils/vts/include/mapper-vts/3.0/MapperVts.h
+++ b/graphics/mapper/3.0/utils/vts/include/mapper-vts/3.0/MapperVts.h
@@ -36,62 +36,66 @@
 // A wrapper to IAllocator and IMapper.
 class Gralloc {
    public:
-    Gralloc(const std::string& allocatorServiceName = "default",
-            const std::string& mapperServiceName = "default");
-    ~Gralloc();
+     Gralloc(const std::string& allocatorServiceName = "default",
+             const std::string& mapperServiceName = "default", bool errOnFailure = true);
+     ~Gralloc();
 
-    // IAllocator methods
+     // IAllocator methods
 
-    sp<IAllocator> getAllocator() const;
+     sp<IAllocator> getAllocator() const;
 
-    std::string dumpDebugInfo();
+     std::string dumpDebugInfo();
 
-    // When import is false, this simply calls IAllocator::allocate. When import
-    // is true, the returned buffers are also imported into the mapper.
-    //
-    // Either case, the returned buffers must be freed with freeBuffer.
-    std::vector<const native_handle_t*> allocate(const BufferDescriptor& descriptor, uint32_t count,
-                                                 bool import = true, uint32_t* outStride = nullptr);
-    const native_handle_t* allocate(const IMapper::BufferDescriptorInfo& descriptorInfo,
-                                    bool import = true, uint32_t* outStride = nullptr);
+     // When import is false, this simply calls IAllocator::allocate. When import
+     // is true, the returned buffers are also imported into the mapper.
+     //
+     // Either case, the returned buffers must be freed with freeBuffer.
+     std::vector<const native_handle_t*> allocate(const BufferDescriptor& descriptor,
+                                                  uint32_t count, bool import = true,
+                                                  uint32_t* outStride = nullptr);
+     const native_handle_t* allocate(const IMapper::BufferDescriptorInfo& descriptorInfo,
+                                     bool import = true, uint32_t* outStride = nullptr);
 
-    // IMapper methods
+     // IMapper methods
 
-    sp<IMapper> getMapper() const;
+     sp<IMapper> getMapper() const;
 
-    BufferDescriptor createDescriptor(const IMapper::BufferDescriptorInfo& descriptorInfo);
+     BufferDescriptor createDescriptor(const IMapper::BufferDescriptorInfo& descriptorInfo);
 
-    const native_handle_t* importBuffer(const hidl_handle& rawHandle);
-    void freeBuffer(const native_handle_t* bufferHandle);
+     const native_handle_t* importBuffer(const hidl_handle& rawHandle);
+     void freeBuffer(const native_handle_t* bufferHandle);
 
-    // We use fd instead of hidl_handle in these functions to pass fences
-    // in and out of the mapper.  The ownership of the fd is always transferred
-    // with each of these functions.
-    void* lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
-               const IMapper::Rect& accessRegion, int acquireFence, int32_t* outBytesPerPixel,
-               int32_t* outBytesPerStride);
-    YCbCrLayout lockYCbCr(const native_handle_t* bufferHandle, uint64_t cpuUsage,
-                          const IMapper::Rect& accessRegion, int acquireFence);
-    int unlock(const native_handle_t* bufferHandle);
+     // We use fd instead of hidl_handle in these functions to pass fences
+     // in and out of the mapper.  The ownership of the fd is always transferred
+     // with each of these functions.
+     void* lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
+                const IMapper::Rect& accessRegion, int acquireFence, int32_t* outBytesPerPixel,
+                int32_t* outBytesPerStride);
+     YCbCrLayout lockYCbCr(const native_handle_t* bufferHandle, uint64_t cpuUsage,
+                           const IMapper::Rect& accessRegion, int acquireFence);
+     int unlock(const native_handle_t* bufferHandle);
 
-    bool validateBufferSize(const native_handle_t* bufferHandle,
-                            const IMapper::BufferDescriptorInfo& descriptorInfo, uint32_t stride);
-    void getTransportSize(const native_handle_t* bufferHandle, uint32_t* outNumFds,
-                          uint32_t* outNumInts);
+     bool validateBufferSize(const native_handle_t* bufferHandle,
+                             const IMapper::BufferDescriptorInfo& descriptorInfo, uint32_t stride);
+     void getTransportSize(const native_handle_t* bufferHandle, uint32_t* outNumFds,
+                           uint32_t* outNumInts);
 
-    bool isSupported(const IMapper::BufferDescriptorInfo& descriptorInfo);
+     bool isSupported(const IMapper::BufferDescriptorInfo& descriptorInfo);
 
    private:
-    void init(const std::string& allocatorServiceName, const std::string& mapperServiceName);
-    const native_handle_t* cloneBuffer(const hidl_handle& rawHandle);
+     void init(const std::string& allocatorServiceName, const std::string& mapperServiceName);
 
-    sp<IAllocator> mAllocator;
-    sp<IMapper> mMapper;
+     // initialize without checking for failure to get service
+     void initNoErr(const std::string& allocatorServiceName, const std::string& mapperServiceName);
+     const native_handle_t* cloneBuffer(const hidl_handle& rawHandle);
 
-    // Keep track of all cloned and imported handles.  When a test fails with
-    // ASSERT_*, the destructor will free the handles for the test.
-    std::unordered_set<const native_handle_t*> mClonedBuffers;
-    std::unordered_set<const native_handle_t*> mImportedBuffers;
+     sp<IAllocator> mAllocator;
+     sp<IMapper> mMapper;
+
+     // Keep track of all cloned and imported handles.  When a test fails with
+     // ASSERT_*, the destructor will free the handles for the test.
+     std::unordered_set<const native_handle_t*> mClonedBuffers;
+     std::unordered_set<const native_handle_t*> mImportedBuffers;
 };
 
 }  // namespace vts