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/*
* Copyright 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 <gmock/gmock.h>
#include <gtest/gtest.h>
#include <log/log.h>
#include <mutex>
#include "Scheduler/EventThread.h"
#include "Scheduler/RefreshRateConfigs.h"
#include "TestableScheduler.h"
#include "TestableSurfaceFlinger.h"
#include "mock/MockEventThread.h"
#include "mock/MockLayer.h"
#include "mock/MockSchedulerCallback.h"
using testing::_;
using testing::Return;
namespace android {
namespace {
constexpr PhysicalDisplayId PHYSICAL_DISPLAY_ID(999);
class SchedulerTest : public testing::Test {
protected:
class MockEventThreadConnection : public android::EventThreadConnection {
public:
explicit MockEventThreadConnection(EventThread* eventThread)
: EventThreadConnection(eventThread, /*callingUid=*/0, ResyncCallback()) {}
~MockEventThreadConnection() = default;
MOCK_METHOD1(stealReceiveChannel, status_t(gui::BitTube* outChannel));
MOCK_METHOD1(setVsyncRate, status_t(uint32_t count));
MOCK_METHOD0(requestNextVsync, void());
};
SchedulerTest();
const DisplayModePtr mode60 = DisplayMode::Builder(0)
.setId(DisplayModeId(0))
.setVsyncPeriod(Fps(60.f).getPeriodNsecs())
.setGroup(0)
.build();
const DisplayModePtr mode120 = DisplayMode::Builder(1)
.setId(DisplayModeId(1))
.setVsyncPeriod(Fps(120.f).getPeriodNsecs())
.setGroup(0)
.build();
scheduler::RefreshRateConfigs mConfigs{{mode60}, mode60->getId()};
mock::SchedulerCallback mSchedulerCallback;
// The scheduler should initially disable VSYNC.
struct ExpectDisableVsync {
ExpectDisableVsync(mock::SchedulerCallback& callback) {
EXPECT_CALL(callback, setVsyncEnabled(false)).Times(1);
}
} mExpectDisableVsync{mSchedulerCallback};
TestableScheduler* mScheduler = new TestableScheduler{mConfigs, mSchedulerCallback};
Scheduler::ConnectionHandle mConnectionHandle;
mock::EventThread* mEventThread;
sp<MockEventThreadConnection> mEventThreadConnection;
TestableSurfaceFlinger mFlinger;
};
SchedulerTest::SchedulerTest() {
auto eventThread = std::make_unique<mock::EventThread>();
mEventThread = eventThread.get();
EXPECT_CALL(*mEventThread, registerDisplayEventConnection(_)).WillOnce(Return(0));
mEventThreadConnection = new MockEventThreadConnection(mEventThread);
// createConnection call to scheduler makes a createEventConnection call to EventThread. Make
// sure that call gets executed and returns an EventThread::Connection object.
EXPECT_CALL(*mEventThread, createEventConnection(_, _))
.WillRepeatedly(Return(mEventThreadConnection));
mConnectionHandle = mScheduler->createConnection(std::move(eventThread));
EXPECT_TRUE(mConnectionHandle);
mFlinger.resetScheduler(mScheduler);
}
} // namespace
TEST_F(SchedulerTest, invalidConnectionHandle) {
Scheduler::ConnectionHandle handle;
const sp<IDisplayEventConnection> connection = mScheduler->createDisplayEventConnection(handle);
EXPECT_FALSE(connection);
EXPECT_FALSE(mScheduler->getEventConnection(handle));
// The EXPECT_CALLS make sure we don't call the functions on the subsequent event threads.
EXPECT_CALL(*mEventThread, onHotplugReceived(_, _)).Times(0);
mScheduler->onHotplugReceived(handle, PHYSICAL_DISPLAY_ID, false);
EXPECT_CALL(*mEventThread, onScreenAcquired()).Times(0);
mScheduler->onScreenAcquired(handle);
EXPECT_CALL(*mEventThread, onScreenReleased()).Times(0);
mScheduler->onScreenReleased(handle);
std::string output;
EXPECT_CALL(*mEventThread, dump(_)).Times(0);
mScheduler->dump(handle, output);
EXPECT_TRUE(output.empty());
EXPECT_CALL(*mEventThread, setDuration(10ns, 20ns)).Times(0);
mScheduler->setDuration(handle, 10ns, 20ns);
}
TEST_F(SchedulerTest, validConnectionHandle) {
const sp<IDisplayEventConnection> connection =
mScheduler->createDisplayEventConnection(mConnectionHandle);
ASSERT_EQ(mEventThreadConnection, connection);
EXPECT_TRUE(mScheduler->getEventConnection(mConnectionHandle));
EXPECT_CALL(*mEventThread, onHotplugReceived(PHYSICAL_DISPLAY_ID, false)).Times(1);
mScheduler->onHotplugReceived(mConnectionHandle, PHYSICAL_DISPLAY_ID, false);
EXPECT_CALL(*mEventThread, onScreenAcquired()).Times(1);
mScheduler->onScreenAcquired(mConnectionHandle);
EXPECT_CALL(*mEventThread, onScreenReleased()).Times(1);
mScheduler->onScreenReleased(mConnectionHandle);
std::string output("dump");
EXPECT_CALL(*mEventThread, dump(output)).Times(1);
mScheduler->dump(mConnectionHandle, output);
EXPECT_FALSE(output.empty());
EXPECT_CALL(*mEventThread, setDuration(10ns, 20ns)).Times(1);
mScheduler->setDuration(mConnectionHandle, 10ns, 20ns);
static constexpr size_t kEventConnections = 5;
EXPECT_CALL(*mEventThread, getEventThreadConnectionCount()).WillOnce(Return(kEventConnections));
EXPECT_EQ(kEventConnections, mScheduler->getEventThreadConnectionCount(mConnectionHandle));
}
TEST_F(SchedulerTest, chooseRefreshRateForContentIsNoopWhenModeSwitchingIsNotSupported) {
// The layer is registered at creation time and deregistered at destruction time.
sp<mock::MockLayer> layer = sp<mock::MockLayer>::make(mFlinger.flinger());
// recordLayerHistory should be a noop
ASSERT_EQ(static_cast<size_t>(0), mScheduler->getNumActiveLayers());
mScheduler->recordLayerHistory(layer.get(), 0, LayerHistory::LayerUpdateType::Buffer);
ASSERT_EQ(static_cast<size_t>(0), mScheduler->getNumActiveLayers());
constexpr bool kPowerStateNormal = true;
mScheduler->setDisplayPowerState(kPowerStateNormal);
constexpr uint32_t kDisplayArea = 999'999;
mScheduler->onPrimaryDisplayAreaChanged(kDisplayArea);
EXPECT_CALL(mSchedulerCallback, changeRefreshRate(_, _)).Times(0);
mScheduler->chooseRefreshRateForContent();
}
TEST_F(SchedulerTest, updateDisplayModes) {
ASSERT_EQ(static_cast<size_t>(0), mScheduler->layerHistorySize());
sp<mock::MockLayer> layer = sp<mock::MockLayer>::make(mFlinger.flinger());
ASSERT_EQ(static_cast<size_t>(1), mScheduler->layerHistorySize());
mConfigs.updateDisplayModes({mode60, mode120}, /* activeMode */ mode60->getId());
ASSERT_EQ(static_cast<size_t>(0), mScheduler->getNumActiveLayers());
mScheduler->recordLayerHistory(layer.get(), 0, LayerHistory::LayerUpdateType::Buffer);
ASSERT_EQ(static_cast<size_t>(1), mScheduler->getNumActiveLayers());
}
TEST_F(SchedulerTest, testDispatchCachedReportedMode) {
// If the optional fields are cleared, the function should return before
// onModeChange is called.
mScheduler->clearOptionalFieldsInFeatures();
EXPECT_NO_FATAL_FAILURE(mScheduler->dispatchCachedReportedMode());
EXPECT_CALL(*mEventThread, onModeChanged(_, _, _)).Times(0);
}
TEST_F(SchedulerTest, onNonPrimaryDisplayModeChanged_invalidParameters) {
DisplayModeId modeId = DisplayModeId(111);
nsecs_t vsyncPeriod = 111111;
// If the handle is incorrect, the function should return before
// onModeChange is called.
Scheduler::ConnectionHandle invalidHandle = {.id = 123};
EXPECT_NO_FATAL_FAILURE(mScheduler->onNonPrimaryDisplayModeChanged(invalidHandle,
PHYSICAL_DISPLAY_ID, modeId,
vsyncPeriod));
EXPECT_CALL(*mEventThread, onModeChanged(_, _, _)).Times(0);
}
TEST_F(SchedulerTest, calculateMaxAcquiredBufferCount) {
EXPECT_EQ(1, mFlinger.calculateMaxAcquiredBufferCount(Fps(60), 30ms));
EXPECT_EQ(2, mFlinger.calculateMaxAcquiredBufferCount(Fps(90), 30ms));
EXPECT_EQ(3, mFlinger.calculateMaxAcquiredBufferCount(Fps(120), 30ms));
EXPECT_EQ(2, mFlinger.calculateMaxAcquiredBufferCount(Fps(60), 40ms));
EXPECT_EQ(1, mFlinger.calculateMaxAcquiredBufferCount(Fps(60), 10ms));
}
MATCHER(Is120Hz, "") {
return arg.getFps().equalsWithMargin(Fps(120.f));
}
TEST_F(SchedulerTest, chooseRefreshRateForContentSelectsMaxRefreshRate) {
mConfigs.updateDisplayModes({mode60, mode120}, /* activeMode */ mode60->getId());
sp<mock::MockLayer> layer = sp<mock::MockLayer>::make(mFlinger.flinger());
mScheduler->recordLayerHistory(layer.get(), 0, LayerHistory::LayerUpdateType::Buffer);
constexpr bool kPowerStateNormal = true;
mScheduler->setDisplayPowerState(kPowerStateNormal);
constexpr uint32_t kDisplayArea = 999'999;
mScheduler->onPrimaryDisplayAreaChanged(kDisplayArea);
EXPECT_CALL(mSchedulerCallback, changeRefreshRate(Is120Hz(), _)).Times(1);
mScheduler->chooseRefreshRateForContent();
}
} // namespace android