test-hwc2: set layer color

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: Ic280f91189a4d6ddd67a33901244714f3c0a46dd
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2Test.cpp b/services/surfaceflinger/tests/hwc2/Hwc2Test.cpp
index b060be9..bba97b8 100644
--- a/services/surfaceflinger/tests/hwc2/Hwc2Test.cpp
+++ b/services/surfaceflinger/tests/hwc2/Hwc2Test.cpp
@@ -375,6 +375,22 @@
         }
     }
 
+    void setLayerColor(hwc2_display_t display, hwc2_layer_t layer,
+            hwc_color_t color, hwc2_error_t* outErr = nullptr)
+    {
+        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_COLOR>(
+                getFunction(HWC2_FUNCTION_SET_LAYER_COLOR));
+        ASSERT_TRUE(pfn) << "failed to get function";
+
+        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
+                color));
+        if (outErr) {
+            *outErr = err;
+        } else {
+            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer color";
+        }
+    }
+
     void setLayerDataspace(hwc2_display_t display, hwc2_layer_t layer,
             android_dataspace_t dataspace, hwc2_error_t* outErr = nullptr)
     {
@@ -875,6 +891,19 @@
             testLayer.getBlendMode(), outErr));
 }
 
+void setColor(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
+        const Hwc2TestLayer& testLayer, hwc2_error_t* outErr)
+{
+    ASSERT_NO_FATAL_FAILURE(test->setLayerCompositionType(display,
+            layer, HWC2_COMPOSITION_SOLID_COLOR));
+    ASSERT_NO_FATAL_FAILURE(test->setLayerPlaneAlpha(display,
+            layer, testLayer.getPlaneAlpha()));
+    ASSERT_NO_FATAL_FAILURE(test->setLayerBlendMode(display,
+            layer, testLayer.getBlendMode()));
+    EXPECT_NO_FATAL_FAILURE(test->setLayerColor(display, layer,
+            testLayer.getColor(), outErr));
+}
+
 void setComposition(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
         const Hwc2TestLayer& testLayer, hwc2_error_t* outErr)
 {
@@ -945,6 +974,17 @@
     return testLayer->advanceBlendMode();
 }
 
+bool advanceColor(Hwc2TestLayer* testLayer)
+{
+    /* Color depends on blend mode so advance blend mode last so color is not
+     * force to update as often */
+    if (testLayer->advancePlaneAlpha())
+        return true;
+    if (testLayer->advanceColor())
+        return true;
+    return testLayer->advanceBlendMode();
+}
+
 bool advanceComposition(Hwc2TestLayer* testLayer)
 {
     return testLayer->advanceComposition();
@@ -1859,6 +1899,48 @@
     ));
 }
 
+/* TESTCASE: Tests that the HWC2 can set the color of a layer. */
+TEST_F(Hwc2Test, SET_LAYER_COLOR)
+{
+    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
+            setColor, advanceColor));
+}
+
+/* TESTCASE: Tests that the HWC2 can update the color of a layer. */
+TEST_F(Hwc2Test, SET_LAYER_COLOR_update)
+{
+    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
+            setColor, advanceColor));
+}
+
+/* TESTCASE: Tests that the HWC2 can set the color of a layer when the
+ * composition type has not been set to HWC2_COMPOSITION_SOLID_COLOR. */
+TEST_F(Hwc2Test, SET_LAYER_COLOR_composition_type_unset)
+{
+    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Basic,
+            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
+                    const Hwc2TestLayer& testLayer, hwc2_error_t* outErr) {
+
+                EXPECT_NO_FATAL_FAILURE(test->setLayerColor(display, layer,
+                        testLayer.getColor(), outErr));
+            },
+
+            advanceColor));
+}
+
+/* TESTCASE: Tests that the HWC2 cannot set the color of a bad layer. */
+TEST_F(Hwc2Test, SET_LAYER_COLOR_bad_layer)
+{
+    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
+            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t badLayer,
+                    const Hwc2TestLayer& testLayer, hwc2_error_t* outErr) {
+
+                EXPECT_NO_FATAL_FAILURE(test->setLayerColor(display, badLayer,
+                        testLayer.getColor(), outErr));
+            }
+    ));
+}
+
 /* TESTCASE: Tests that the HWC2 can set the dataspace of a layer. */
 TEST_F(Hwc2Test, SET_LAYER_DATASPACE)
 {