Refactoring Transaction_test continued
Bug: 140128949
Test: build, boot, SurfaceFlinger_test
Change-Id: Ibe0bdf04e1667051aa2126a676839cdcdbe7579d
diff --git a/services/surfaceflinger/tests/RelativeZ_test.cpp b/services/surfaceflinger/tests/RelativeZ_test.cpp
new file mode 100644
index 0000000..8549db2
--- /dev/null
+++ b/services/surfaceflinger/tests/RelativeZ_test.cpp
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#include "LayerTransactionTest.h"
+
+namespace android {
+
+using android::hardware::graphics::common::V1_1::BufferUsage;
+
+::testing::Environment* const binderEnv =
+ ::testing::AddGlobalTestEnvironment(new BinderEnvironment());
+
+class RelativeZTest : public LayerTransactionTest {
+protected:
+ virtual void SetUp() {
+ LayerTransactionTest::SetUp();
+ ASSERT_EQ(NO_ERROR, mClient->initCheck());
+
+ const auto display = SurfaceComposerClient::getInternalDisplayToken();
+ ASSERT_FALSE(display == nullptr);
+
+ // Back layer
+ mBackgroundLayer = createColorLayer("Background layer", Color::RED);
+
+ // Front layer
+ mForegroundLayer = createColorLayer("Foreground layer", Color::GREEN);
+
+ asTransaction([&](Transaction& t) {
+ t.setDisplayLayerStack(display, 0);
+ t.setLayer(mBackgroundLayer, INT32_MAX - 2).show(mBackgroundLayer);
+ t.setLayer(mForegroundLayer, INT32_MAX - 1).show(mForegroundLayer);
+ });
+ }
+
+ virtual void TearDown() {
+ LayerTransactionTest::TearDown();
+ mBackgroundLayer = 0;
+ mForegroundLayer = 0;
+ }
+
+ sp<SurfaceControl> mBackgroundLayer;
+ sp<SurfaceControl> mForegroundLayer;
+};
+
+// When a layer is reparented offscreen, remove relative z order if the relative parent
+// is still onscreen so that the layer is not drawn.
+TEST_F(RelativeZTest, LayerRemoved) {
+ std::unique_ptr<ScreenCapture> sc;
+
+ // Background layer (RED)
+ // Child layer (WHITE) (relative to foregroud layer)
+ // Foregroud layer (GREEN)
+ sp<SurfaceControl> childLayer =
+ createColorLayer("Child layer", Color::BLUE, mBackgroundLayer.get());
+
+ Transaction{}
+ .setRelativeLayer(childLayer, mForegroundLayer->getHandle(), 1)
+ .show(childLayer)
+ .apply();
+
+ {
+ // The childLayer should be in front of the FG control.
+ ScreenCapture::captureScreen(&sc);
+ sc->checkPixel(1, 1, Color::BLUE.r, Color::BLUE.g, Color::BLUE.b);
+ }
+
+ // Background layer (RED)
+ // Foregroud layer (GREEN)
+ Transaction{}.reparent(childLayer, nullptr).apply();
+
+ // Background layer (RED)
+ // Child layer (WHITE)
+ // Foregroud layer (GREEN)
+ Transaction{}.reparent(childLayer, mBackgroundLayer->getHandle()).apply();
+
+ {
+ // The relative z info for child layer should be reset, leaving FG control on top.
+ ScreenCapture::captureScreen(&sc);
+ sc->checkPixel(1, 1, Color::GREEN.r, Color::GREEN.g, Color::GREEN.b);
+ }
+}
+
+// When a layer is reparented offscreen, preseve relative z order if the relative parent
+// is also offscreen. Regression test b/132613412
+TEST_F(RelativeZTest, LayerRemovedOffscreenRelativeParent) {
+ std::unique_ptr<ScreenCapture> sc;
+
+ // Background layer (RED)
+ // Foregroud layer (GREEN)
+ // child level 1 (WHITE)
+ // child level 2a (BLUE)
+ // child level 3 (GREEN) (relative to child level 2b)
+ // child level 2b (BLACK)
+ sp<SurfaceControl> childLevel1 =
+ createColorLayer("child level 1", Color::WHITE, mForegroundLayer.get());
+ sp<SurfaceControl> childLevel2a =
+ createColorLayer("child level 2a", Color::BLUE, childLevel1.get());
+ sp<SurfaceControl> childLevel2b =
+ createColorLayer("child level 2b", Color::BLACK, childLevel1.get());
+ sp<SurfaceControl> childLevel3 =
+ createColorLayer("child level 3", Color::GREEN, childLevel2a.get());
+
+ Transaction{}
+ .setRelativeLayer(childLevel3, childLevel2b->getHandle(), 1)
+ .show(childLevel2a)
+ .show(childLevel2b)
+ .show(childLevel3)
+ .apply();
+
+ {
+ // The childLevel3 should be in front of childLevel2b.
+ ScreenCapture::captureScreen(&sc);
+ sc->checkPixel(1, 1, Color::GREEN.r, Color::GREEN.g, Color::GREEN.b);
+ }
+
+ // Background layer (RED)
+ // Foregroud layer (GREEN)
+ Transaction{}.reparent(childLevel1, nullptr).apply();
+
+ // Background layer (RED)
+ // Foregroud layer (GREEN)
+ // child level 1 (WHITE)
+ // child level 2 back (BLUE)
+ // child level 3 (GREEN) (relative to child level 2b)
+ // child level 2 front (BLACK)
+ Transaction{}.reparent(childLevel1, mForegroundLayer->getHandle()).apply();
+
+ {
+ // Nothing should change at this point since relative z info was preserved.
+ ScreenCapture::captureScreen(&sc);
+ sc->checkPixel(1, 1, Color::GREEN.r, Color::GREEN.g, Color::GREEN.b);
+ }
+}
+} // namespace android