Logic for setFrameRateSelectionStrategy.
Use the frameRateSelectionStrategy value stored in Layer to inform the
frame rate propagation in the hierarchy.
Bug: 297418260
Test: atest CtsSurfaceControlTestsStaging
Test: atest libsurfaceflinger_unittest
Change-Id: I05a6a7effd17cefb01421bff10c9ff9dbcadf98a
diff --git a/services/surfaceflinger/tests/unittests/FrameRateSelectionStrategyTest.cpp b/services/surfaceflinger/tests/unittests/FrameRateSelectionStrategyTest.cpp
new file mode 100644
index 0000000..ffe6f24
--- /dev/null
+++ b/services/surfaceflinger/tests/unittests/FrameRateSelectionStrategyTest.cpp
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2023 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.
+ */
+
+#undef LOG_TAG
+#define LOG_TAG "LibSurfaceFlingerUnittests"
+
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+#include <gui/LayerMetadata.h>
+
+#include "Layer.h"
+#include "LayerTestUtils.h"
+#include "TestableSurfaceFlinger.h"
+#include "mock/DisplayHardware/MockComposer.h"
+
+namespace android {
+
+using testing::DoAll;
+using testing::Mock;
+using testing::SetArgPointee;
+
+using android::Hwc2::IComposer;
+using android::Hwc2::IComposerClient;
+
+using scheduler::LayerHistory;
+
+using FrameRate = Layer::FrameRate;
+using FrameRateCompatibility = Layer::FrameRateCompatibility;
+using FrameRateSelectionStrategy = scheduler::LayerInfo::FrameRateSelectionStrategy;
+
+/**
+ * This class tests the behaviour of Layer::setFrameRateSelectionStrategy.
+ */
+class FrameRateSelectionStrategyTest : public BaseLayerTest {
+protected:
+ const FrameRate FRAME_RATE_VOTE1 = FrameRate(11_Hz, FrameRateCompatibility::Default);
+ const FrameRate FRAME_RATE_VOTE2 = FrameRate(22_Hz, FrameRateCompatibility::Default);
+ const FrameRate FRAME_RATE_VOTE3 = FrameRate(33_Hz, FrameRateCompatibility::Default);
+ const FrameRate FRAME_RATE_TREE = FrameRate(Fps(), FrameRateCompatibility::NoVote);
+
+ FrameRateSelectionStrategyTest();
+
+ void addChild(sp<Layer> layer, sp<Layer> child);
+ void removeChild(sp<Layer> layer, sp<Layer> child);
+ void commitTransaction();
+
+ std::vector<sp<Layer>> mLayers;
+};
+
+FrameRateSelectionStrategyTest::FrameRateSelectionStrategyTest() {
+ const ::testing::TestInfo* const test_info =
+ ::testing::UnitTest::GetInstance()->current_test_info();
+ ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
+
+ mFlinger.setupComposer(std::make_unique<Hwc2::mock::Composer>());
+}
+
+void FrameRateSelectionStrategyTest::addChild(sp<Layer> layer, sp<Layer> child) {
+ layer->addChild(child);
+}
+
+void FrameRateSelectionStrategyTest::removeChild(sp<Layer> layer, sp<Layer> child) {
+ layer->removeChild(child);
+}
+
+void FrameRateSelectionStrategyTest::commitTransaction() {
+ for (auto layer : mLayers) {
+ layer->commitTransaction();
+ }
+}
+
+namespace {
+
+INSTANTIATE_TEST_SUITE_P(PerLayerType, FrameRateSelectionStrategyTest,
+ testing::Values(std::make_shared<BufferStateLayerFactory>(),
+ std::make_shared<EffectLayerFactory>()),
+ PrintToStringParamName);
+
+TEST_P(FrameRateSelectionStrategyTest, SetAndGet) {
+ EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+
+ const auto& layerFactory = GetParam();
+ auto layer = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
+ layer->setFrameRate(FRAME_RATE_VOTE1.vote);
+ layer->setFrameRateSelectionStrategy(FrameRateSelectionStrategy::OverrideChildren);
+ commitTransaction();
+ EXPECT_EQ(FRAME_RATE_VOTE1, layer->getFrameRateForLayerTree());
+ EXPECT_EQ(FrameRateSelectionStrategy::OverrideChildren,
+ layer->getDrawingState().frameRateSelectionStrategy);
+}
+
+TEST_P(FrameRateSelectionStrategyTest, SetChildAndGetParent) {
+ EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+
+ const auto& layerFactory = GetParam();
+ auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
+ auto child1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
+ auto child2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
+ addChild(parent, child1);
+ addChild(child1, child2);
+
+ child2->setFrameRate(FRAME_RATE_VOTE1.vote);
+ child2->setFrameRateSelectionStrategy(FrameRateSelectionStrategy::OverrideChildren);
+ commitTransaction();
+ EXPECT_EQ(FRAME_RATE_TREE, parent->getFrameRateForLayerTree());
+ EXPECT_EQ(FrameRateSelectionStrategy::Self,
+ parent->getDrawingState().frameRateSelectionStrategy);
+ EXPECT_EQ(FRAME_RATE_TREE, child1->getFrameRateForLayerTree());
+ EXPECT_EQ(FrameRateSelectionStrategy::Self,
+ child1->getDrawingState().frameRateSelectionStrategy);
+ EXPECT_EQ(FRAME_RATE_VOTE1, child2->getFrameRateForLayerTree());
+ EXPECT_EQ(FrameRateSelectionStrategy::OverrideChildren,
+ child2->getDrawingState().frameRateSelectionStrategy);
+}
+
+TEST_P(FrameRateSelectionStrategyTest, SetParentAndGet) {
+ EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+
+ const auto& layerFactory = GetParam();
+ auto layer1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
+ auto layer2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
+ auto layer3 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
+ addChild(layer1, layer2);
+ addChild(layer2, layer3);
+
+ layer1->setFrameRate(FRAME_RATE_VOTE1.vote);
+ layer1->setFrameRate(FRAME_RATE_VOTE1.vote);
+ layer1->setFrameRateSelectionStrategy(FrameRateSelectionStrategy::OverrideChildren);
+ layer2->setFrameRate(FRAME_RATE_VOTE2.vote);
+ layer2->setFrameRateSelectionStrategy(FrameRateSelectionStrategy::OverrideChildren);
+ layer3->setFrameRate(FRAME_RATE_VOTE3.vote);
+ commitTransaction();
+
+ EXPECT_EQ(FRAME_RATE_VOTE1, layer1->getFrameRateForLayerTree());
+ EXPECT_EQ(FrameRateSelectionStrategy::OverrideChildren,
+ layer1->getDrawingState().frameRateSelectionStrategy);
+ EXPECT_EQ(FRAME_RATE_VOTE1, layer2->getFrameRateForLayerTree());
+ EXPECT_EQ(FrameRateSelectionStrategy::OverrideChildren,
+ layer2->getDrawingState().frameRateSelectionStrategy);
+ EXPECT_EQ(FRAME_RATE_VOTE1, layer3->getFrameRateForLayerTree());
+ EXPECT_EQ(FrameRateSelectionStrategy::Self,
+ layer3->getDrawingState().frameRateSelectionStrategy);
+}
+
+} // namespace
+} // namespace android
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