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/*
* Copyright 2021 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 "FpsReporterTest"
#include <chrono>
#include <android/gui/BnFpsListener.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <gui/LayerMetadata.h>
#include "Client.h" // temporarily needed for LayerCreationArgs
#include "FpsReporter.h"
#include "FrontEnd/LayerCreationArgs.h"
#include "FrontEnd/LayerHierarchy.h"
#include "FrontEnd/LayerLifecycleManager.h"
#include "Layer.h"
#include "TestableSurfaceFlinger.h"
#include "fake/FakeClock.h"
#include "mock/DisplayHardware/MockComposer.h"
#include "mock/MockFrameTimeline.h"
namespace android {
using namespace std::chrono_literals;
using testing::_;
using testing::DoAll;
using testing::Mock;
using testing::Return;
using testing::SetArgPointee;
using testing::UnorderedElementsAre;
using android::Hwc2::IComposer;
using android::Hwc2::IComposerClient;
using gui::LayerMetadata;
struct TestableFpsListener : public gui::BnFpsListener {
TestableFpsListener() {}
float lastReportedFps = 0;
binder::Status onFpsReported(float fps) override {
lastReportedFps = fps;
return binder::Status::ok();
}
};
/**
* This class covers all the test that are related to refresh rate selection.
*/
class FpsReporterTest : public testing::Test {
public:
FpsReporterTest();
~FpsReporterTest() override;
protected:
static constexpr int DEFAULT_DISPLAY_WIDTH = 1920;
static constexpr int DEFAULT_DISPLAY_HEIGHT = 1024;
static constexpr uint32_t WIDTH = 100;
static constexpr uint32_t HEIGHT = 100;
static constexpr uint32_t LAYER_FLAGS = 0;
static constexpr int32_t PRIORITY_UNSET = -1;
sp<Layer> createBufferStateLayer(LayerMetadata metadata);
LayerCreationArgs createArgs(uint32_t id, bool canBeRoot, uint32_t parentId,
LayerMetadata metadata);
void createRootLayer(uint32_t id, LayerMetadata metadata);
void createLayer(uint32_t id, uint32_t parentId, LayerMetadata metadata);
frontend::LayerLifecycleManager mLifecycleManager;
mock::FrameTimeline mFrameTimeline =
mock::FrameTimeline(std::make_shared<impl::TimeStats>(), 0);
sp<Client> mClient;
sp<Layer> mParent;
sp<Layer> mTarget;
sp<Layer> mChild;
sp<Layer> mGrandChild;
sp<Layer> mUnrelated;
sp<TestableFpsListener> mFpsListener;
fake::FakeClock* mClock = new fake::FakeClock();
sp<FpsReporter> mFpsReporter =
sp<FpsReporter>::make(mFrameTimeline, std::unique_ptr<Clock>(mClock));
};
FpsReporterTest::FpsReporterTest() {
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());
mFpsListener = sp<TestableFpsListener>::make();
}
FpsReporterTest::~FpsReporterTest() {
const ::testing::TestInfo* const test_info =
::testing::UnitTest::GetInstance()->current_test_info();
ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
}
LayerCreationArgs FpsReporterTest::createArgs(uint32_t id, bool canBeRoot, uint32_t parentId,
LayerMetadata metadata) {
sp<Client> client;
LayerCreationArgs args(std::make_optional(id));
args.name = "testlayer";
args.addToRoot = canBeRoot;
args.flags = LAYER_FLAGS;
args.metadata = metadata;
args.parentId = parentId;
return args;
}
void FpsReporterTest::createRootLayer(uint32_t id, LayerMetadata metadata = LayerMetadata()) {
std::vector<std::unique_ptr<frontend::RequestedLayerState>> layers;
layers.emplace_back(std::make_unique<frontend::RequestedLayerState>(
createArgs(/*id=*/id, /*canBeRoot=*/true, /*parent=*/UNASSIGNED_LAYER_ID,
/*metadata=*/metadata)));
mLifecycleManager.addLayers(std::move(layers));
}
void FpsReporterTest::createLayer(uint32_t id, uint32_t parentId,
LayerMetadata metadata = LayerMetadata()) {
std::vector<std::unique_ptr<frontend::RequestedLayerState>> layers;
layers.emplace_back(std::make_unique<frontend::RequestedLayerState>(
createArgs(/*id=*/id, /*canBeRoot=*/false, /*parent=*/parentId,
/*mirror=*/metadata)));
mLifecycleManager.addLayers(std::move(layers));
}
namespace {
TEST_F(FpsReporterTest, callsListeners) {
constexpr int32_t kTaskId = 12;
LayerMetadata targetMetadata;
targetMetadata.setInt32(gui::METADATA_TASK_ID, kTaskId);
createRootLayer(1, targetMetadata);
createLayer(11, 1);
createLayer(111, 11);
frontend::LayerHierarchyBuilder hierarchyBuilder;
hierarchyBuilder.update(mLifecycleManager);
float expectedFps = 44.0;
EXPECT_CALL(mFrameTimeline, computeFps(UnorderedElementsAre(1, 11, 111)))
.WillOnce(Return(expectedFps));
mFpsReporter->addListener(mFpsListener, kTaskId);
mClock->advanceTime(600ms);
mFpsReporter->dispatchLayerFps(hierarchyBuilder.getHierarchy());
EXPECT_EQ(expectedFps, mFpsListener->lastReportedFps);
mFpsReporter->removeListener(mFpsListener);
Mock::VerifyAndClearExpectations(&mFrameTimeline);
EXPECT_CALL(mFrameTimeline, computeFps(_)).Times(0);
mFpsReporter->dispatchLayerFps(hierarchyBuilder.getHierarchy());
}
TEST_F(FpsReporterTest, rateLimits) {
const constexpr int32_t kTaskId = 12;
LayerMetadata targetMetadata;
targetMetadata.setInt32(gui::METADATA_TASK_ID, kTaskId);
createRootLayer(1);
createLayer(11, 1, targetMetadata);
frontend::LayerHierarchyBuilder hierarchyBuilder;
hierarchyBuilder.update(mLifecycleManager);
float firstFps = 44.0;
float secondFps = 53.0;
EXPECT_CALL(mFrameTimeline, computeFps(UnorderedElementsAre(11)))
.WillOnce(Return(firstFps))
.WillOnce(Return(secondFps));
mFpsReporter->addListener(mFpsListener, kTaskId);
mClock->advanceTime(600ms);
mFpsReporter->dispatchLayerFps(hierarchyBuilder.getHierarchy());
EXPECT_EQ(firstFps, mFpsListener->lastReportedFps);
mClock->advanceTime(200ms);
mFpsReporter->dispatchLayerFps(hierarchyBuilder.getHierarchy());
EXPECT_EQ(firstFps, mFpsListener->lastReportedFps);
mClock->advanceTime(200ms);
mFpsReporter->dispatchLayerFps(hierarchyBuilder.getHierarchy());
EXPECT_EQ(firstFps, mFpsListener->lastReportedFps);
mClock->advanceTime(200ms);
mFpsReporter->dispatchLayerFps(hierarchyBuilder.getHierarchy());
EXPECT_EQ(secondFps, mFpsListener->lastReportedFps);
}
} // namespace
} // namespace android
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