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Commit 1db2e372 authored by Marissa Wall's avatar Marissa Wall
Browse files

test-hwc2: create and destroy layers 

Test: Add "#define HAVE_NO_SURFACE_FLINGER" to
          frameworks/native/libs/gui/BufferQueueCore.cpp.
      Recompile and flash.
      Run "mm" in frameworks/native/services/surfaceflinger/tests/hwc2.
      Push test-hwc2 to device.
      Run "adb root && adb shell stop".
      Run test case. Ex: "./test-hwc2"

Change-Id: I508174a871a74d4c4d2843fc0ded84c517553bce
parent cfb9a07f

services/surfaceflinger/tests/hwc2/Hwc2Test.cpp

+181 −0
Original line number Diff line number Diff line
@@ -51,6 +51,15 @@ public: 


    virtual void TearDown()

    {



        for (auto itr = mLayers.begin(); itr != mLayers.end();) {

            hwc2_display_t display = itr->first;

            hwc2_layer_t layer = itr->second;

            itr++;

            /* Destroys and removes the layer from mLayers */

            destroyLayer(display, layer);

        }



        if (mHwc2Device)

            hwc2_close(mHwc2Device);

    }
@@ -103,6 +112,46 @@ public: 
        mHotplugCv.notify_all();

    }



    void createLayer(hwc2_display_t display, hwc2_layer_t* outLayer,

            hwc2_error_t* outErr = nullptr)

    {

        auto pfn = reinterpret_cast<HWC2_PFN_CREATE_LAYER>(

                getFunction(HWC2_FUNCTION_CREATE_LAYER));

        ASSERT_TRUE(pfn) << "failed to get function";



        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,

                outLayer));



        if (err == HWC2_ERROR_NONE)

            mLayers.insert(std::make_pair(display, *outLayer));



        if (outErr) {

            *outErr = err;

        } else {

            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to create layer";

        }

    }



    void destroyLayer(hwc2_display_t display, hwc2_layer_t layer,

            hwc2_error_t* outErr = nullptr)

    {

        auto pfn = reinterpret_cast<HWC2_PFN_DESTROY_LAYER>(

                getFunction(HWC2_FUNCTION_DESTROY_LAYER));

        ASSERT_TRUE(pfn) << "failed to get function";



        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer));



        if (err == HWC2_ERROR_NONE)

            mLayers.erase(std::make_pair(display, layer));



        if (outErr) {

            *outErr = err;

        } else {

            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to destroy layer "

                    << layer;

        }

    }



protected:

    hwc2_function_pointer_t getFunction(hwc2_function_descriptor_t descriptor)

    {
@@ -163,6 +212,37 @@ protected: 
                " are registered. This should never happen.";

    }



    /* NOTE: will create min(newlayerCnt, max supported layers) layers */

    void createLayers(hwc2_display_t display,

            std::vector<hwc2_layer_t>* outLayers, size_t newLayerCnt)

    {

        std::vector<hwc2_layer_t> newLayers;

        hwc2_layer_t layer;

        hwc2_error_t err = HWC2_ERROR_NONE;



        for (size_t i = 0; i < newLayerCnt; i++) {



            EXPECT_NO_FATAL_FAILURE(createLayer(display, &layer, &err));

            if (err == HWC2_ERROR_NO_RESOURCES)

                break;

            if (err != HWC2_ERROR_NONE) {

                newLayers.clear();

                ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to create layer";

            }

            newLayers.push_back(layer);

        }



        *outLayers = std::move(newLayers);

    }



    void destroyLayers(hwc2_display_t display,

            std::vector<hwc2_layer_t>&& layers)

    {

        for (hwc2_layer_t layer : layers) {

            EXPECT_NO_FATAL_FAILURE(destroyLayer(display, layer));

        }

    }



    hwc2_device_t* mHwc2Device = nullptr;



    enum class Hwc2TestHotplugStatus {
@@ -175,6 +255,10 @@ protected: 
    std::condition_variable mHotplugCv;

    Hwc2TestHotplugStatus mHotplugStatus = Hwc2TestHotplugStatus::Init;

    std::unordered_set<hwc2_display_t> mDisplays;



    /* Store all created layers that have not been destroyed. If an ASSERT_*

     * fails, then destroy the layers on exit */

    std::set<std::pair<hwc2_display_t, hwc2_layer_t>> mLayers;

};



void hwc2TestHotplugCallback(hwc2_callback_data_t callbackData,
@@ -327,3 +411,100 @@ TEST_F(Hwc2Test, GET_DISPLAY_TYPE_bad_display) 
    ASSERT_NO_FATAL_FAILURE(getDisplayType(display, &type, &err));

    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";

}



/* TESTCASE: Tests that the HWC2 can create and destroy layers. */

TEST_F(Hwc2Test, CREATE_DESTROY_LAYER)

{

    for (auto display : mDisplays) {

        hwc2_layer_t layer;



        ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer));



        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer));

    }

}



/* TESTCASE: Tests that the HWC2 cannot create a layer for a bad display */

TEST_F(Hwc2Test, CREATE_LAYER_bad_display)

{

    hwc2_display_t display;

    hwc2_layer_t layer;

    hwc2_error_t err = HWC2_ERROR_NONE;



    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));



    ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer, &err));

    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";

}



/* TESTCASE: Tests that the HWC2 will either support a large number of resources

 * or will return no resources. */

TEST_F(Hwc2Test, CREATE_LAYER_no_resources)

{

    const size_t layerCnt = 1000;



    for (auto display : mDisplays) {

        std::vector<hwc2_layer_t> layers;



        ASSERT_NO_FATAL_FAILURE(createLayers(display, &layers, layerCnt));



        ASSERT_NO_FATAL_FAILURE(destroyLayers(display, std::move(layers)));

    }

}



/* TESTCASE: Tests that the HWC2 cannot destroy a layer for a bad display */

TEST_F(Hwc2Test, DESTROY_LAYER_bad_display)

{

    hwc2_display_t badDisplay;



    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&badDisplay));



    for (auto display : mDisplays) {

        hwc2_layer_t layer = 0;

        hwc2_error_t err = HWC2_ERROR_NONE;



        ASSERT_NO_FATAL_FAILURE(destroyLayer(badDisplay, layer, &err));

        EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";



        ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer));



        ASSERT_NO_FATAL_FAILURE(destroyLayer(badDisplay, layer, &err));

        EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";



        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer));

    }

}



/* TESTCASE: Tests that the HWC2 cannot destory a bad layer */

TEST_F(Hwc2Test, DESTROY_LAYER_bad_layer)

{

    for (auto display : mDisplays) {

        hwc2_layer_t layer;

        hwc2_error_t err = HWC2_ERROR_NONE;



        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, UINT64_MAX / 2, &err));

        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";



        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, 0, &err));

        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";



        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, UINT64_MAX - 1, &err));

        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";



        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, 1, &err));

        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";



        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, UINT64_MAX, &err));

        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";



        ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer));



        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer + 1, &err));

        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";



        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer));



        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer, &err));

        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";

    }

}