diff --git a/graphics/common/1.2/Android.bp b/graphics/common/1.2/Android.bp
new file mode 100644
index 0000000..a86f3b5
--- /dev/null
+++ b/graphics/common/1.2/Android.bp
@@ -0,0 +1,23 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.graphics.common@1.2",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
+    srcs: [
+        "types.hal",
+    ],
+    interfaces: [
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.graphics.common@1.1",
+    ],
+    types: [
+        "Dataspace",
+    ],
+    gen_java: true,
+    gen_java_constants: true,
+}
+
diff --git a/graphics/common/1.2/types.hal b/graphics/common/1.2/types.hal
new file mode 100644
index 0000000..cf4e34a
--- /dev/null
+++ b/graphics/common/1.2/types.hal
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.graphics.common@1.2;
+
+import @1.1::BufferUsage;
+import @1.1::ColorMode;
+import @1.1::Dataspace;
+import @1.1::PixelFormat;
+
+@export(name="android_dataspace_v1_2_t", value_prefix="HAL_DATASPACE_",
+        export_parent="false")
+enum Dataspace : @1.1::Dataspace {
+    /**
+     * ITU-R Recommendation 2020 (BT.2020)
+     *
+     * Ultra High-definition television
+     *
+     * Use full range, sRGB transfer and BT2020 standard
+     */
+    DISPLAY_BT2020 = STANDARD_BT2020 | TRANSFER_SRGB | RANGE_FULL,
+};
+
+enum ColorMode : @1.1::ColorMode {
+    /**
+     * DISPLAY_BT2020 corresponds with display settings that implement the ITU-R
+     * Recommendation BT.2020 / Rec. 2020 for UHDTV, but specifies an SRGB
+     * transfer function.
+     *
+     * Primaries:
+     *                  x       y
+     *  green           0.170   0.797
+     *  blue            0.131   0.046
+     *  red             0.708   0.292
+     *  white (D65)     0.3127  0.3290
+     *
+     * Transfer Function is sRGB
+     */
+    DISPLAY_BT2020 = 13,
+};
diff --git a/graphics/composer/2.3/Android.bp b/graphics/composer/2.3/Android.bp
index 78da099..6d29348 100644
--- a/graphics/composer/2.3/Android.bp
+++ b/graphics/composer/2.3/Android.bp
@@ -13,6 +13,7 @@
     interfaces: [
         "android.hardware.graphics.common@1.0",
         "android.hardware.graphics.common@1.1",
+        "android.hardware.graphics.common@1.2",
         "android.hardware.graphics.composer@2.1",
         "android.hardware.graphics.composer@2.2",
         "android.hidl.base@1.0",
diff --git a/graphics/composer/2.3/IComposerClient.hal b/graphics/composer/2.3/IComposerClient.hal
index 089438e..dec3b25 100644
--- a/graphics/composer/2.3/IComposerClient.hal
+++ b/graphics/composer/2.3/IComposerClient.hal
@@ -16,6 +16,10 @@
 
 package android.hardware.graphics.composer@2.3;
 
+import android.hardware.graphics.common@1.1::RenderIntent;
+import android.hardware.graphics.common@1.1::PixelFormat;
+import android.hardware.graphics.common@1.2::ColorMode;
+import android.hardware.graphics.common@1.2::Dataspace;
 import android.hardware.graphics.composer@2.1::IComposerClient.Command;
 import @2.2::IComposerClient;
 import @2.1::Display;
@@ -87,6 +91,75 @@
                generates (Error error,
                           uint8_t port,
                           vec<uint8_t> data);
+    /**
+     * getReadbackBufferAttributes_2_3
+     * Returns the format which should be used when allocating a buffer for use by
+     * device readback as well as the dataspace in which its contents must be
+     * interpreted.
+     *
+     * The width and height of this buffer must be those of the currently-active
+     * display configuration, and the usage flags must consist of the following:
+     *   BufferUsage::CPU_READ | BufferUsage::GPU_TEXTURE |
+     *   BufferUsage::COMPOSER_OUTPUT
+     *
+     * The format and dataspace provided must be sufficient such that if a
+     * correctly-configured buffer is passed into setReadbackBuffer, filled by
+     * the device, and then displayed by the client as a full-screen buffer, the
+     * output of the display remains the same (subject to the note about protected
+     * content in the description of setReadbackBuffer).
+     *
+     * If the active configuration or color mode of this display has changed
+     * since a previous call to this function, it must be called again prior to
+     * setting a readback buffer such that the returned format and dataspace will
+     * be updated accordingly.
+     *
+     * Parameters:
+     * @param display - the display on which to create the layer.
+     *
+     * @return format - the format the client should use when allocating a device
+     *     readback buffer
+     * @return dataspace - the dataspace to use when interpreting the
+     *     contents of a device readback buffer
+     * @return error is NONE upon success. Otherwise,
+     *     BAD_DISPLAY when an invalid display handle was passed in.
+     *     UNSUPPORTED if not supported on underlying HAL
+     *
+     * See also:
+     *   setReadbackBuffer
+     *   getReadbackBufferFence
+     */
+    getReadbackBufferAttributes_2_3(Display display)
+        generates (Error error,
+                   PixelFormat format,
+                   Dataspace dataspace);
+
+    /**
+     * getClientTargetSupport_2_3
+     * Returns whether a client target with the given properties can be
+     * handled by the device.
+     *
+     * This function must return true for a client target with width and
+     * height equal to the active display configuration dimensions,
+     * PixelFormat::RGBA_8888, and Dataspace::UNKNOWN. It is not required to
+     * return true for any other configuration.
+     *
+     * @param display is the display to query.
+     * @param width is the client target width in pixels.
+     * @param height is the client target height in pixels.
+     * @param format is the client target format.
+     * @param dataspace is the client target dataspace, as described in
+     *     setLayerDataspace.
+     * @return error is NONE upon success. Otherwise,
+     *     BAD_DISPLAY when an invalid display handle was passed in.
+     *     UNSUPPORTED when the given configuration is not supported.
+     */
+    @callflow(next="*")
+    getClientTargetSupport_2_3(Display display,
+                               uint32_t width,
+                               uint32_t height,
+                               PixelFormat format,
+                               Dataspace dataspace)
+                    generates (Error error);
 
     /**
      * Executes commands from the input command message queue. Return values
@@ -113,4 +186,58 @@
                         bool outQueueChanged,
                         uint32_t outLength,
                         vec<handle> outHandles);
+
+    /**
+     * Returns the render intents supported by the specified display and color
+     * mode.
+     *
+     * For SDR color modes, RenderIntent::COLORIMETRIC must be supported. For
+     * HDR color modes, RenderIntent::TONE_MAP_COLORIMETRIC must be supported.
+     *
+     * @param display is the display to query.
+     * @param mode is the color mode to query.
+     * @return error is NONE upon success. Otherwise,
+     *     BAD_DISPLAY when an invalid display handle was passed in.
+     *     BAD_PARAMETER when an invalid color mode was passed in.
+     * @return intents is an array of render intents.
+     */
+    getRenderIntents_2_3(Display display, ColorMode mode)
+          generates (Error error,
+                     vec<RenderIntent> intents);
+
+    /**
+     * Returns the color modes supported on this display.
+     *
+     * All devices must support at least ColorMode::NATIVE.
+     *
+     * @param display is the display to query.
+     * @return error is NONE upon success. Otherwise,
+     *     BAD_DISPLAY when an invalid display handle was passed in.
+     * @return modes is an array of color modes.
+     */
+    getColorModes_2_3(Display display)
+           generates (Error error,
+                      vec<ColorMode> modes);
+
+    /**
+     * Sets the color mode and render intent of the given display.
+     *
+     * The color mode and render intent change must take effect on next
+     * presentDisplay.
+     *
+     * All devices must support at least ColorMode::NATIVE and
+     * RenderIntent::COLORIMETRIC, and displays are assumed to be in this mode
+     * upon hotplug.
+     *
+     * @param display is the display to which the color mode is set.
+     * @param mode is the color mode to set to.
+     * @param intent is the render intent to set to.
+     * @return error is NONE upon success. Otherwise,
+     *     BAD_DISPLAY when an invalid display handle was passed in.
+     *     BAD_PARAMETER when mode or intent is invalid
+     *     UNSUPPORTED when mode or intent is not supported on this
+     *         display.
+     */
+    setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent)
+          generates (Error error);
 };
diff --git a/graphics/composer/2.3/utils/command-buffer/include/composer-command-buffer/2.3/ComposerCommandBuffer.h b/graphics/composer/2.3/utils/command-buffer/include/composer-command-buffer/2.3/ComposerCommandBuffer.h
index 3f7b2c9..6c95a1f 100644
--- a/graphics/composer/2.3/utils/command-buffer/include/composer-command-buffer/2.3/ComposerCommandBuffer.h
+++ b/graphics/composer/2.3/utils/command-buffer/include/composer-command-buffer/2.3/ComposerCommandBuffer.h
@@ -34,6 +34,7 @@
 namespace V2_3 {
 
 using android::hardware::MessageQueue;
+using android::hardware::graphics::common::V1_2::Dataspace;
 using android::hardware::graphics::composer::V2_1::Error;
 using android::hardware::graphics::composer::V2_1::IComposerCallback;
 using android::hardware::graphics::composer::V2_1::Layer;
@@ -43,6 +44,16 @@
 // units of uint32_t's.
 class CommandWriterBase : public V2_2::CommandWriterBase {
    public:
+    void setLayerDataspace(Dataspace dataspace) {
+        setLayerDataspaceInternal(static_cast<int32_t>(dataspace));
+    }
+
+    void setClientTarget(uint32_t slot, const native_handle_t* target, int acquireFence,
+                         Dataspace dataspace, const std::vector<IComposerClient::Rect>& damage) {
+        setClientTargetInternal(slot, target, acquireFence, static_cast<int32_t>(dataspace),
+                                damage);
+    }
+
     CommandWriterBase(uint32_t initialMaxSize) : V2_2::CommandWriterBase(initialMaxSize) {}
 
     static constexpr uint16_t kSetLayerColorTransformLength = 16;
diff --git a/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerClient.h b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerClient.h
index c805472..90603a7 100644
--- a/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerClient.h
+++ b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerClient.h
@@ -38,6 +38,52 @@
 template <typename Interface, typename Hal>
 class ComposerClientImpl : public V2_2::hal::detail::ComposerClientImpl<Interface, Hal> {
    public:
+    Return<Error> setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent) override {
+#ifndef USES_DISPLAY_RENDER_INTENTS
+        if (intent != RenderIntent::COLORIMETRIC) {
+            return Error::BAD_PARAMETER;
+        }
+#endif
+        return mHal->setColorMode_2_3(display, mode, intent);
+    }
+
+    Return<void> getRenderIntents_2_3(Display display, ColorMode mode,
+                                      IComposerClient::getRenderIntents_2_3_cb hidl_cb) override {
+#ifdef USES_DISPLAY_RENDER_INTENTS
+        std::vector<RenderIntent> intents;
+        Error err = mHal->getRenderIntents_2_3(display, mode, &intents);
+        hidl_cb(err, intents);
+#else
+        (void)display;
+        (void)mode;
+        hidl_cb(Error::NONE, hidl_vec<RenderIntent>({RenderIntent::COLORIMETRIC}));
+#endif
+        return Void();
+    }
+
+    Return<void> getColorModes_2_3(Display display,
+                                   IComposerClient::getColorModes_2_3_cb hidl_cb) override {
+        hidl_vec<ColorMode> modes;
+        Error err = mHal->getColorModes_2_3(display, &modes);
+        hidl_cb(err, modes);
+        return Void();
+    }
+
+    Return<void> getReadbackBufferAttributes_2_3(
+        Display display, IComposerClient::getReadbackBufferAttributes_2_3_cb hidl_cb) override {
+        PixelFormat format = PixelFormat::RGB_888;
+        Dataspace dataspace = Dataspace::UNKNOWN;
+        Error error = mHal->getReadbackBufferAttributes_2_3(display, &format, &dataspace);
+        hidl_cb(error, format, dataspace);
+        return Void();
+    }
+
+    Return<Error> getClientTargetSupport_2_3(Display display, uint32_t width, uint32_t height,
+                                             PixelFormat format, Dataspace dataspace) override {
+        Error err = mHal->getClientTargetSupport_2_3(display, width, height, format, dataspace);
+        return err;
+    }
+
     static std::unique_ptr<ComposerClientImpl> create(Hal* hal) {
         auto client = std::make_unique<ComposerClientImpl>(hal);
         return client->init() ? std::move(client) : nullptr;
diff --git a/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerHal.h b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerHal.h
index 0f6205a..27efc2b 100644
--- a/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerHal.h
+++ b/graphics/composer/2.3/utils/hal/include/composer-hal/2.3/ComposerHal.h
@@ -25,12 +25,50 @@
 namespace V2_3 {
 namespace hal {
 
+using common::V1_1::PixelFormat;
+using common::V1_1::RenderIntent;
+using common::V1_2::ColorMode;
+using common::V1_2::Dataspace;
 using V2_1::Display;
 using V2_1::Error;
 using V2_1::Layer;
 
 class ComposerHal : public V2_2::hal::ComposerHal {
    public:
+    Error setColorMode_2_2(Display display, common::V1_1::ColorMode mode,
+                           RenderIntent intent) override {
+        return setColorMode_2_3(display, static_cast<ColorMode>(mode), intent);
+    }
+
+    Error getColorModes_2_2(Display display, hidl_vec<common::V1_1::ColorMode>* outModes) override {
+        return getColorModes_2_3(display, reinterpret_cast<hidl_vec<ColorMode>*>(outModes));
+    }
+
+    Error getClientTargetSupport_2_2(Display display, uint32_t width, uint32_t height,
+                                     common::V1_1::PixelFormat format,
+                                     common::V1_1::Dataspace dataspace) override {
+        return getClientTargetSupport_2_3(display, width, height, static_cast<PixelFormat>(format),
+                                          static_cast<Dataspace>(dataspace));
+    }
+
+    Error getReadbackBufferAttributes(Display display, common::V1_1::PixelFormat* outFormat,
+                                      common::V1_1::Dataspace* outDataspace) override {
+        return getReadbackBufferAttributes_2_3(display, reinterpret_cast<PixelFormat*>(outFormat),
+                                               reinterpret_cast<Dataspace*>(outDataspace));
+    }
+
+    virtual Error setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent) = 0;
+
+    virtual Error getRenderIntents_2_3(Display display, ColorMode mode,
+                                       std::vector<RenderIntent>* outIntents) = 0;
+
+    virtual Error getColorModes_2_3(Display display, hidl_vec<ColorMode>* outModes) = 0;
+
+    virtual Error getClientTargetSupport_2_3(Display display, uint32_t width, uint32_t height,
+                                             PixelFormat format, Dataspace dataspace) = 0;
+    virtual Error getReadbackBufferAttributes_2_3(Display display, PixelFormat* outFormat,
+                                                  Dataspace* outDataspace) = 0;
+
     virtual Error getDisplayIdentificationData(Display display, uint8_t* outPort,
                                                std::vector<uint8_t>* outData) = 0;
     virtual Error setLayerColorTransform(Display display, Layer layer, const float* matrix) = 0;
diff --git a/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h
index ed1878b..df68f58 100644
--- a/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h
+++ b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h
@@ -34,6 +34,10 @@
 
 namespace detail {
 
+using common::V1_1::PixelFormat;
+using common::V1_1::RenderIntent;
+using common::V1_2::ColorMode;
+using common::V1_2::Dataspace;
 using V2_1::Display;
 using V2_1::Error;
 
@@ -41,6 +45,32 @@
 template <typename Hal>
 class HwcHalImpl : public V2_2::passthrough::detail::HwcHalImpl<Hal> {
    public:
+    Error setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent) override {
+        return setColorMode_2_2(display, static_cast<common::V1_1::ColorMode>(mode), intent);
+    }
+
+    Error getRenderIntents_2_3(Display display, ColorMode mode,
+                               std::vector<RenderIntent>* outIntents) override {
+        return getRenderIntents(display, static_cast<common::V1_1::ColorMode>(mode), outIntents);
+    }
+
+    Error getColorModes_2_3(Display display, hidl_vec<ColorMode>* outModes) override {
+        return getColorModes_2_2(display,
+                                 reinterpret_cast<hidl_vec<common::V1_1::ColorMode>*>(outModes));
+    }
+
+    Error getClientTargetSupport_2_3(Display display, uint32_t width, uint32_t height,
+                                     PixelFormat format, Dataspace dataspace) override {
+        return getClientTargetSupport_2_2(display, width, height, format,
+                                          static_cast<common::V1_1::Dataspace>(dataspace));
+    }
+
+    Error getReadbackBufferAttributes_2_3(Display display, PixelFormat* outFormat,
+                                          Dataspace* outDataspace) override {
+        return getReadbackBufferAttributes(
+            display, outFormat, reinterpret_cast<common::V1_1::Dataspace*>(outDataspace));
+    }
+
     Error getDisplayIdentificationData(Display display, uint8_t* outPort,
                                        std::vector<uint8_t>* outData) override {
         if (!mDispatch.getDisplayIdentificationData) {
@@ -96,6 +126,11 @@
     using BaseType2_2 = V2_2::passthrough::detail::HwcHalImpl<Hal>;
     using BaseType2_1 = V2_1::passthrough::detail::HwcHalImpl<Hal>;
     using BaseType2_1::mDevice;
+    using BaseType2_2::getClientTargetSupport_2_2;
+    using BaseType2_2::getColorModes_2_2;
+    using BaseType2_2::getReadbackBufferAttributes;
+    using BaseType2_2::getRenderIntents;
+    using BaseType2_2::setColorMode_2_2;
 };
 
 }  // namespace detail
diff --git a/graphics/composer/2.3/utils/vts/ComposerVts.cpp b/graphics/composer/2.3/utils/vts/ComposerVts.cpp
index f1d3a50..656c8c4 100644
--- a/graphics/composer/2.3/utils/vts/ComposerVts.cpp
+++ b/graphics/composer/2.3/utils/vts/ComposerVts.cpp
@@ -45,6 +45,10 @@
     return client;
 }
 
+sp<IComposerClient> ComposerClient::getRaw() const {
+    return mClient;
+}
+
 bool ComposerClient::getDisplayIdentificationData(Display display, uint8_t* outPort,
                                                   std::vector<uint8_t>* outData) {
     bool supported = true;
@@ -64,6 +68,46 @@
     return supported;
 }
 
+std::vector<ColorMode> ComposerClient::getColorModes_2_3(Display display) {
+    std::vector<ColorMode> modes;
+    mClient->getColorModes_2_3(display, [&](const auto& tmpError, const auto& tmpModes) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to get color modes";
+        modes = tmpModes;
+    });
+    return modes;
+}
+
+void ComposerClient::setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent) {
+    Error error = mClient->setColorMode_2_3(display, mode, intent);
+    ASSERT_TRUE(error == Error::NONE || error == Error::UNSUPPORTED) << "failed to set color mode";
+}
+
+std::vector<RenderIntent> ComposerClient::getRenderIntents_2_3(Display display, ColorMode mode) {
+    std::vector<RenderIntent> intents;
+    mClient->getRenderIntents_2_3(display, mode, [&](const auto& tmpError, const auto& tmpIntents) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to get render intents";
+        intents = tmpIntents;
+    });
+    return intents;
+}
+
+void ComposerClient::getReadbackBufferAttributes_2_3(Display display, PixelFormat* outPixelFormat,
+                                                     Dataspace* outDataspace) {
+    mClient->getReadbackBufferAttributes_2_3(
+        display,
+        [&](const auto& tmpError, const auto& tmpOutPixelFormat, const auto& tmpOutDataspace) {
+            ASSERT_EQ(Error::NONE, tmpError) << "failed to get readback buffer attributes";
+            *outPixelFormat = tmpOutPixelFormat;
+            *outDataspace = tmpOutDataspace;
+        });
+}
+
+bool ComposerClient::getClientTargetSupport_2_3(Display display, uint32_t width, uint32_t height,
+                                                PixelFormat format, Dataspace dataspace) {
+    Error error = mClient->getClientTargetSupport_2_3(display, width, height, format, dataspace);
+    return error == Error::NONE;
+}
+
 }  // namespace vts
 }  // namespace V2_3
 }  // namespace composer
diff --git a/graphics/composer/2.3/utils/vts/include/composer-vts/2.3/ComposerVts.h b/graphics/composer/2.3/utils/vts/include/composer-vts/2.3/ComposerVts.h
index 103b85a..ec1a2a1 100644
--- a/graphics/composer/2.3/utils/vts/include/composer-vts/2.3/ComposerVts.h
+++ b/graphics/composer/2.3/utils/vts/include/composer-vts/2.3/ComposerVts.h
@@ -32,6 +32,10 @@
 namespace V2_3 {
 namespace vts {
 
+using common::V1_1::PixelFormat;
+using common::V1_1::RenderIntent;
+using common::V1_2::ColorMode;
+using common::V1_2::Dataspace;
 using V2_1::Display;
 using V2_3::IComposer;
 using V2_3::IComposerClient;
@@ -59,9 +63,23 @@
     explicit ComposerClient(const sp<IComposerClient>& client)
         : V2_2::vts::ComposerClient(client), mClient(client) {}
 
+    sp<IComposerClient> getRaw() const;
+
     bool getDisplayIdentificationData(Display display, uint8_t* outPort,
                                       std::vector<uint8_t>* outData);
 
+    std::vector<ColorMode> getColorModes_2_3(Display display);
+
+    void setColorMode_2_3(Display display, ColorMode mode, RenderIntent intent);
+
+    std::vector<RenderIntent> getRenderIntents_2_3(Display display, ColorMode mode);
+
+    void getReadbackBufferAttributes_2_3(Display display, PixelFormat* outPixelFormat,
+                                         Dataspace* outDataspace);
+
+    bool getClientTargetSupport_2_3(Display display, uint32_t width, uint32_t height,
+                                    PixelFormat format, Dataspace dataspace);
+
    private:
     const sp<IComposerClient> mClient;
 };
diff --git a/graphics/composer/2.3/vts/functional/VtsHalGraphicsComposerV2_3TargetTest.cpp b/graphics/composer/2.3/vts/functional/VtsHalGraphicsComposerV2_3TargetTest.cpp
index 1030ddc..3ca21aa 100644
--- a/graphics/composer/2.3/vts/functional/VtsHalGraphicsComposerV2_3TargetTest.cpp
+++ b/graphics/composer/2.3/vts/functional/VtsHalGraphicsComposerV2_3TargetTest.cpp
@@ -33,6 +33,11 @@
 namespace vts {
 namespace {
 
+using common::V1_1::PixelFormat;
+using common::V1_1::RenderIntent;
+using common::V1_2::ColorMode;
+using common::V1_2::Dataspace;
+
 // Test environment for graphics.composer
 class GraphicsComposerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
    public:
@@ -64,6 +69,8 @@
         // assume the first display is primary and is never removed
         mPrimaryDisplay = waitForFirstDisplay();
 
+        mInvalidDisplayId = GetInvalidDisplayId();
+
         // explicitly disable vsync
         mComposerClient->setVsyncEnabled(mPrimaryDisplay, false);
         mComposerCallback->setVsyncAllowed(false);
@@ -80,6 +87,22 @@
         }
     }
 
+    // returns an invalid display id (one that has not been registered to a
+    // display.  Currently assuming that a device will never have close to
+    // std::numeric_limit<uint64_t>::max() displays registered while running tests
+    Display GetInvalidDisplayId() {
+        std::vector<Display> validDisplays = mComposerCallback->getDisplays();
+        uint64_t id = std::numeric_limits<uint64_t>::max();
+        while (id > 0) {
+            if (std::find(validDisplays.begin(), validDisplays.end(), id) == validDisplays.end()) {
+                return id;
+            }
+            id--;
+        }
+
+        return 0;
+    }
+
     void execute() { mComposerClient->execute(mReader.get(), mWriter.get()); }
 
     // use the slot count usually set by SF
@@ -90,6 +113,7 @@
     sp<V2_1::vts::GraphicsComposerCallback> mComposerCallback;
     // the first display and is assumed never to be removed
     Display mPrimaryDisplay;
+    Display mInvalidDisplayId;
     std::unique_ptr<CommandWriterBase> mWriter;
     std::unique_ptr<V2_1::vts::TestCommandReader> mReader;
 
@@ -128,6 +152,185 @@
 }
 
 /**
+ * TestIComposerClient::getReadbackBufferAttributes_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, GetReadbackBufferAttributes_2_3) {
+    Dataspace dataspace;
+    PixelFormat pixelFormat;
+
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->getReadbackBufferAttributes_2_3(
+        mPrimaryDisplay, &pixelFormat, &dataspace));
+}
+
+/**
+ * Test IComposerClient::getClientTargetSupport_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, GetClientTargetSupport_2_3) {
+    std::vector<V2_1::Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
+    for (auto config : configs) {
+        int32_t width = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                             IComposerClient::Attribute::WIDTH);
+        int32_t height = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                              IComposerClient::Attribute::HEIGHT);
+        ASSERT_LT(0, width);
+        ASSERT_LT(0, height);
+
+        mComposerClient->setActiveConfig(mPrimaryDisplay, config);
+
+        ASSERT_TRUE(mComposerClient->getClientTargetSupport_2_3(
+            mPrimaryDisplay, width, height, PixelFormat::RGBA_8888, Dataspace::UNKNOWN));
+    }
+}
+/**
+ * Test IComposerClient::getClientTargetSupport_2_3
+ *
+ * Test that IComposerClient::getClientTargetSupport_2_3 returns
+ * Error::BAD_DISPLAY when passed in an invalid display handle
+ */
+
+TEST_F(GraphicsComposerHidlTest, GetClientTargetSupport_2_3BadDisplay) {
+    std::vector<V2_1::Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
+    for (auto config : configs) {
+        int32_t width = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                             IComposerClient::Attribute::WIDTH);
+        int32_t height = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
+                                                              IComposerClient::Attribute::HEIGHT);
+        ASSERT_LT(0, width);
+        ASSERT_LT(0, height);
+
+        mComposerClient->setActiveConfig(mPrimaryDisplay, config);
+
+        Error error = mComposerClient->getRaw()->getClientTargetSupport_2_3(
+            mInvalidDisplayId, width, height, PixelFormat::RGBA_8888, Dataspace::UNKNOWN);
+
+        EXPECT_EQ(Error::BAD_DISPLAY, error);
+    }
+}
+
+/**
+ * Test IComposerClient::getRenderIntents_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, GetRenderIntents_2_3) {
+    std::vector<ColorMode> modes = mComposerClient->getColorModes_2_3(mPrimaryDisplay);
+    for (auto mode : modes) {
+        std::vector<RenderIntent> intents =
+            mComposerClient->getRenderIntents_2_3(mPrimaryDisplay, mode);
+
+        bool isHdr;
+        switch (mode) {
+            case ColorMode::BT2100_PQ:
+            case ColorMode::BT2100_HLG:
+                isHdr = true;
+                break;
+            default:
+                isHdr = false;
+                break;
+        }
+        RenderIntent requiredIntent =
+            isHdr ? RenderIntent::TONE_MAP_COLORIMETRIC : RenderIntent::COLORIMETRIC;
+
+        auto iter = std::find(intents.cbegin(), intents.cend(), requiredIntent);
+        EXPECT_NE(intents.cend(), iter);
+    }
+}
+
+/*
+ * Test IComposerClient::getRenderIntents_2_3
+ *
+ * Test that IComposerClient::getRenderIntents_2_3 returns Error::BAD_DISPLAY when
+ * passed an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, GetRenderIntents_2_3BadDisplay) {
+    std::vector<ColorMode> modes = mComposerClient->getColorModes_2_3(mPrimaryDisplay);
+    for (auto mode : modes) {
+        mComposerClient->getRaw()->getRenderIntents_2_3(
+            mInvalidDisplayId, mode,
+            [&](const auto& tmpError, const auto&) { EXPECT_EQ(Error::BAD_DISPLAY, tmpError); });
+    }
+}
+
+/*
+ * Test IComposerClient::getRenderIntents_2_3
+ *
+ * Test that IComposerClient::getRenderIntents_2_3 returns Error::BAD_PARAMETER when
+ * pased either an invalid Color mode or an invalid Render Intent
+ */
+TEST_F(GraphicsComposerHidlTest, GetRenderIntents_2_3BadParameter) {
+    mComposerClient->getRaw()->getRenderIntents_2_3(
+        mPrimaryDisplay, static_cast<ColorMode>(-1),
+        [&](const auto& tmpError, const auto&) { EXPECT_EQ(Error::BAD_PARAMETER, tmpError); });
+}
+
+/**
+ * IComposerClient::getColorModes_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, GetColorModes_2_3) {
+    std::vector<ColorMode> colorModes = mComposerClient->getColorModes_2_3(mPrimaryDisplay);
+
+    auto native = std::find(colorModes.cbegin(), colorModes.cend(), ColorMode::NATIVE);
+    ASSERT_NE(colorModes.cend(), native);
+}
+
+/*
+ * Test IComposerClient::getColorModes_2_3
+ *
+ * Test that IComposerClient::getColorModes_2_3 returns Error::BAD_DISPLAY when
+ * passed an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, GetColorMode_2_3BadDisplay) {
+    mComposerClient->getRaw()->getColorModes_2_3(
+        mInvalidDisplayId,
+        [&](const auto& tmpError, const auto&) { ASSERT_EQ(Error::BAD_DISPLAY, tmpError); });
+}
+
+/**
+ * IComposerClient::setColorMode_2_3
+ */
+TEST_F(GraphicsComposerHidlTest, SetColorMode_2_3) {
+    std::vector<ColorMode> colorModes = mComposerClient->getColorModes_2_3(mPrimaryDisplay);
+    for (auto mode : colorModes) {
+        std::vector<RenderIntent> intents =
+            mComposerClient->getRenderIntents_2_3(mPrimaryDisplay, mode);
+        for (auto intent : intents) {
+            ASSERT_NO_FATAL_FAILURE(
+                mComposerClient->setColorMode_2_3(mPrimaryDisplay, mode, intent));
+        }
+    }
+
+    ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode_2_3(mPrimaryDisplay, ColorMode::NATIVE,
+                                                              RenderIntent::COLORIMETRIC));
+}
+
+/*
+ * Test IComposerClient::setColorMode_2_3
+ *
+ * Test that IComposerClient::setColorMode_2_3 returns an Error::BAD_DISPLAY
+ * when passed an invalid display handle
+ */
+TEST_F(GraphicsComposerHidlTest, SetColorMode_2_3BadDisplay) {
+    Error error = mComposerClient->getRaw()->setColorMode_2_3(mInvalidDisplayId, ColorMode::NATIVE,
+                                                              RenderIntent::COLORIMETRIC);
+
+    ASSERT_EQ(Error::BAD_DISPLAY, error);
+}
+
+/*
+ * Test IComposerClient::setColorMode_2_3
+ *
+ * Test that IComposerClient::setColorMode_2_3 returns Error::BAD_PARAMETER when
+ * passed an invalid Color mode or an invalid render intent
+ */
+TEST_F(GraphicsComposerHidlTest, SetColorMode_2_3BadParameter) {
+    Error colorModeError = mComposerClient->getRaw()->setColorMode_2_3(
+        mPrimaryDisplay, static_cast<ColorMode>(-1), RenderIntent::COLORIMETRIC);
+    EXPECT_EQ(Error::BAD_PARAMETER, colorModeError);
+
+    Error renderIntentError = mComposerClient->getRaw()->setColorMode_2_3(
+        mPrimaryDisplay, ColorMode::NATIVE, static_cast<RenderIntent>(-1));
+    EXPECT_EQ(Error::BAD_PARAMETER, renderIntentError);
+}
+
+/**
  * Test IComposerClient::Command::SET_LAYER_COLOR_TRANSFORM.
  * TODO Add color to the layer, use matrix to keep only red component,
  * and check.