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Commit e4ef6102 authored by Chia-I Wu's avatar Chia-I Wu
Browse files

surfaceflinger: add more setColor tests 

Add LayerTransactionTest.
  SetColorBasic
  SetColorClamped
  SetColorWithAlpha
  SetColorWithBuffer

Test: SurfaceFlinger_test
Change-Id: I042f01d7551681f72cd95ce8d38d74900cfe660a
parent a8a515e8

services/surfaceflinger/tests/Transaction_test.cpp

+68 −0
Original line number Diff line number Diff line
@@ -920,6 +920,74 @@ TEST_F(LayerTransactionTest, SetAlphaClamped) { 
    }

}



TEST_F(LayerTransactionTest, SetColorBasic) {

    sp<SurfaceControl> bufferLayer;

    sp<SurfaceControl> colorLayer;

    ASSERT_NO_FATAL_FAILURE(bufferLayer = createLayer("test bg", 32, 32));

    ASSERT_NO_FATAL_FAILURE(fillLayerColor(bufferLayer, Color::RED));

    ASSERT_NO_FATAL_FAILURE(

            colorLayer = createLayer("test", 32, 32, ISurfaceComposerClient::eFXSurfaceColor));



    Transaction().setLayer(colorLayer, mLayerZBase + 1).apply();

    {

        SCOPED_TRACE("default color");

        screenshot()->expectColor(Rect(0, 0, 32, 32), Color::BLACK);

    }



    const half3 color(15.0f / 255.0f, 51.0f / 255.0f, 85.0f / 255.0f);

    const Color expected = {15, 51, 85, 255};

    // this is handwavy, but the precison loss scaled by 255 (8-bit per

    // channel) should be less than one

    const uint8_t tolerance = 1;

    Transaction().setColor(colorLayer, color).apply();

    {

        SCOPED_TRACE("new color");

        screenshot()->expectColor(Rect(0, 0, 32, 32), expected, tolerance);

    }

}



TEST_F(LayerTransactionTest, SetColorClamped) {

    sp<SurfaceControl> colorLayer;

    ASSERT_NO_FATAL_FAILURE(

            colorLayer = createLayer("test", 32, 32, ISurfaceComposerClient::eFXSurfaceColor));



    Transaction().setColor(colorLayer, half3(2.0f, -1.0f, 0.0f)).apply();

    screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);

}



TEST_F(LayerTransactionTest, SetColorWithAlpha) {

    sp<SurfaceControl> bufferLayer;

    sp<SurfaceControl> colorLayer;

    ASSERT_NO_FATAL_FAILURE(bufferLayer = createLayer("test bg", 32, 32));

    ASSERT_NO_FATAL_FAILURE(fillLayerColor(bufferLayer, Color::RED));

    ASSERT_NO_FATAL_FAILURE(

            colorLayer = createLayer("test", 32, 32, ISurfaceComposerClient::eFXSurfaceColor));



    const half3 color(15.0f / 255.0f, 51.0f / 255.0f, 85.0f / 255.0f);

    const float alpha = 0.25f;

    const ubyte3 expected((vec3(color) * alpha + vec3(1.0f, 0.0f, 0.0f) * (1.0f - alpha)) * 255.0f);

    // this is handwavy, but the precison loss scaled by 255 (8-bit per

    // channel) should be less than one

    const uint8_t tolerance = 1;

    Transaction()

            .setColor(colorLayer, color)

            .setAlpha(colorLayer, alpha)

            .setLayer(colorLayer, mLayerZBase + 1)

            .apply();

    screenshot()->expectColor(Rect(0, 0, 32, 32), {expected.r, expected.g, expected.b, 255},

                              tolerance);

}



TEST_F(LayerTransactionTest, SetColorWithBuffer) {

    sp<SurfaceControl> bufferLayer;

    ASSERT_NO_FATAL_FAILURE(bufferLayer = createLayer("test", 32, 32));

    ASSERT_NO_FATAL_FAILURE(fillLayerColor(bufferLayer, Color::RED));



    // color is ignored

    Transaction().setColor(bufferLayer, half3(0.0f, 1.0f, 0.0f)).apply();

    screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);

}



class LayerUpdateTest : public ::testing::Test {

protected:

    virtual void SetUp() {