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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.
*/
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wconversion"
#undef LOG_TAG
#define LOG_TAG "LayerHistoryTest"
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <log/log.h>
#include "Scheduler/LayerHistory.h"
#include "Scheduler/LayerInfo.h"
#include "TestableScheduler.h"
#include "TestableSurfaceFlinger.h"
#include "mock/MockLayer.h"
using testing::_;
using testing::Return;
namespace android::scheduler {
class LayerHistoryTest : public testing::Test {
protected:
static constexpr auto PRESENT_TIME_HISTORY_SIZE = LayerInfo::PresentTimeHistory::HISTORY_SIZE;
static constexpr auto MAX_FREQUENT_LAYER_PERIOD_NS = LayerInfo::MAX_FREQUENT_LAYER_PERIOD_NS;
static constexpr float LO_FPS = 30.f;
static constexpr nsecs_t LO_FPS_PERIOD = 33'333'333;
static constexpr float HI_FPS = 90.f;
static constexpr nsecs_t HI_FPS_PERIOD = 11'111'111;
LayerHistoryTest() { mFlinger.resetScheduler(mScheduler); }
impl::LayerHistory& history() { return *mScheduler->mutableLayerHistory(); }
const impl::LayerHistory& history() const { return *mScheduler->mutableLayerHistory(); }
size_t layerCount() const { return mScheduler->layerHistorySize(); }
size_t activeLayerCount() const NO_THREAD_SAFETY_ANALYSIS { return history().mActiveLayersEnd; }
size_t frequentLayerCount(nsecs_t now) const NO_THREAD_SAFETY_ANALYSIS {
const auto& infos = history().mLayerInfos;
return std::count_if(infos.begin(), infos.begin() + history().mActiveLayersEnd,
[now](const auto& pair) { return pair.second->isFrequent(now); });
}
auto createLayer() { return sp<mock::MockLayer>(new mock::MockLayer(mFlinger.flinger())); }
Hwc2::mock::Display mDisplay;
RefreshRateConfigs mConfigs{{HWC2::Display::Config::Builder(mDisplay, 0)
.setVsyncPeriod(int32_t(LO_FPS_PERIOD))
.setConfigGroup(0)
.build(),
HWC2::Display::Config::Builder(mDisplay, 1)
.setVsyncPeriod(int32_t(HI_FPS_PERIOD))
.setConfigGroup(0)
.build()},
HwcConfigIndexType(0)};
TestableScheduler* const mScheduler{new TestableScheduler(mConfigs, false)};
TestableSurfaceFlinger mFlinger;
const nsecs_t mTime = systemTime();
};
namespace {
TEST_F(LayerHistoryTest, oneLayer) {
const auto layer = createLayer();
EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
EXPECT_CALL(*layer, getFrameSelectionPriority()).WillRepeatedly(Return(1));
EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
EXPECT_EQ(1, layerCount());
EXPECT_EQ(0, activeLayerCount());
// no layers are returned if no layers are active.
ASSERT_TRUE(history().summarize(mTime).empty());
EXPECT_EQ(0, activeLayerCount());
// no layers are returned if active layers have insufficient history.
for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE - 1; i++) {
history().record(layer.get(), 0, mTime, LayerHistory::LayerUpdateType::Buffer);
ASSERT_TRUE(history().summarize(mTime).empty());
EXPECT_EQ(1, activeLayerCount());
}
// High FPS is returned once enough history has been recorded.
for (int i = 0; i < 10; i++) {
history().record(layer.get(), 0, mTime, LayerHistory::LayerUpdateType::Buffer);
ASSERT_EQ(1, history().summarize(mTime).size());
EXPECT_FLOAT_EQ(HI_FPS, history().summarize(mTime)[0].desiredRefreshRate);
EXPECT_EQ(1, activeLayerCount());
}
}
TEST_F(LayerHistoryTest, explicitTimestamp) {
const auto layer = createLayer();
EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
EXPECT_CALL(*layer, getFrameSelectionPriority()).WillRepeatedly(Return(1));
EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
EXPECT_EQ(1, layerCount());
EXPECT_EQ(0, activeLayerCount());
nsecs_t time = mTime;
for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
history().record(layer.get(), time, time, LayerHistory::LayerUpdateType::Buffer);
time += LO_FPS_PERIOD;
}
ASSERT_EQ(1, history().summarize(mTime).size());
EXPECT_FLOAT_EQ(LO_FPS, history().summarize(mTime)[0].desiredRefreshRate);
EXPECT_EQ(1, activeLayerCount());
EXPECT_EQ(1, frequentLayerCount(time));
}
TEST_F(LayerHistoryTest, multipleLayers) {
auto layer1 = createLayer();
auto layer2 = createLayer();
auto layer3 = createLayer();
EXPECT_CALL(*layer1, isVisible()).WillRepeatedly(Return(true));
EXPECT_CALL(*layer1, getFrameSelectionPriority()).WillRepeatedly(Return(1));
EXPECT_CALL(*layer1, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
EXPECT_CALL(*layer2, isVisible()).WillRepeatedly(Return(true));
EXPECT_CALL(*layer2, getFrameSelectionPriority()).WillRepeatedly(Return(1));
EXPECT_CALL(*layer2, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
EXPECT_CALL(*layer3, isVisible()).WillRepeatedly(Return(true));
EXPECT_CALL(*layer3, getFrameSelectionPriority()).WillRepeatedly(Return(1));
EXPECT_CALL(*layer3, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
nsecs_t time = mTime;
EXPECT_EQ(3, layerCount());
EXPECT_EQ(0, activeLayerCount());
EXPECT_EQ(0, frequentLayerCount(time));
// layer1 is active but infrequent.
for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
history().record(layer1.get(), time, time, LayerHistory::LayerUpdateType::Buffer);
time += MAX_FREQUENT_LAYER_PERIOD_NS.count();
}
ASSERT_EQ(1, history().summarize(time).size());
EXPECT_FLOAT_EQ(LO_FPS, history().summarize(time)[0].desiredRefreshRate);
EXPECT_EQ(1, activeLayerCount());
EXPECT_EQ(0, frequentLayerCount(time));
// layer2 is frequent and has high refresh rate.
for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
history().record(layer2.get(), time, time, LayerHistory::LayerUpdateType::Buffer);
time += HI_FPS_PERIOD;
}
// layer1 is still active but infrequent.
history().record(layer1.get(), time, time, LayerHistory::LayerUpdateType::Buffer);
ASSERT_EQ(2, history().summarize(time).size());
EXPECT_FLOAT_EQ(LO_FPS, history().summarize(time)[0].desiredRefreshRate);
EXPECT_FLOAT_EQ(HI_FPS, history().summarize(time)[1].desiredRefreshRate);
EXPECT_EQ(2, activeLayerCount());
EXPECT_EQ(1, frequentLayerCount(time));
// layer1 is no longer active.
// layer2 is frequent and has low refresh rate.
for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
history().record(layer2.get(), time, time, LayerHistory::LayerUpdateType::Buffer);
time += LO_FPS_PERIOD;
}
ASSERT_EQ(1, history().summarize(time).size());
EXPECT_FLOAT_EQ(LO_FPS, history().summarize(time)[0].desiredRefreshRate);
EXPECT_EQ(1, activeLayerCount());
EXPECT_EQ(1, frequentLayerCount(time));
// layer2 still has low refresh rate.
// layer3 has high refresh rate but not enough history.
constexpr int RATIO = LO_FPS_PERIOD / HI_FPS_PERIOD;
for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE - 1; i++) {
if (i % RATIO == 0) {
history().record(layer2.get(), time, time, LayerHistory::LayerUpdateType::Buffer);
}
history().record(layer3.get(), time, time, LayerHistory::LayerUpdateType::Buffer);
time += HI_FPS_PERIOD;
}
ASSERT_EQ(1, history().summarize(time).size());
EXPECT_FLOAT_EQ(LO_FPS, history().summarize(time)[0].desiredRefreshRate);
EXPECT_EQ(2, activeLayerCount());
EXPECT_EQ(2, frequentLayerCount(time));
// layer3 becomes recently active.
history().record(layer3.get(), time, time, LayerHistory::LayerUpdateType::Buffer);
ASSERT_EQ(2, history().summarize(time).size());
EXPECT_FLOAT_EQ(LO_FPS, history().summarize(time)[0].desiredRefreshRate);
EXPECT_FLOAT_EQ(HI_FPS, history().summarize(time)[1].desiredRefreshRate);
EXPECT_EQ(2, activeLayerCount());
EXPECT_EQ(2, frequentLayerCount(time));
// layer1 expires.
layer1.clear();
ASSERT_EQ(2, history().summarize(time).size());
EXPECT_FLOAT_EQ(LO_FPS, history().summarize(time)[0].desiredRefreshRate);
EXPECT_FLOAT_EQ(HI_FPS, history().summarize(time)[1].desiredRefreshRate);
EXPECT_EQ(2, layerCount());
EXPECT_EQ(2, activeLayerCount());
EXPECT_EQ(2, frequentLayerCount(time));
// layer2 still has low refresh rate.
// layer3 becomes inactive.
for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
history().record(layer2.get(), time, time, LayerHistory::LayerUpdateType::Buffer);
time += LO_FPS_PERIOD;
}
ASSERT_EQ(1, history().summarize(time).size());
EXPECT_FLOAT_EQ(LO_FPS, history().summarize(time)[0].desiredRefreshRate);
EXPECT_EQ(1, activeLayerCount());
EXPECT_EQ(1, frequentLayerCount(time));
// layer2 expires.
layer2.clear();
ASSERT_TRUE(history().summarize(time).empty());
EXPECT_EQ(1, layerCount());
EXPECT_EQ(0, activeLayerCount());
EXPECT_EQ(0, frequentLayerCount(time));
// layer3 becomes active and has high refresh rate.
for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
history().record(layer3.get(), time, time, LayerHistory::LayerUpdateType::Buffer);
time += HI_FPS_PERIOD;
}
ASSERT_EQ(1, history().summarize(time).size());
EXPECT_FLOAT_EQ(HI_FPS, history().summarize(time)[0].desiredRefreshRate);
EXPECT_EQ(1, layerCount());
EXPECT_EQ(1, activeLayerCount());
EXPECT_EQ(1, frequentLayerCount(time));
// layer3 expires.
layer3.clear();
ASSERT_TRUE(history().summarize(time).empty());
EXPECT_EQ(0, layerCount());
EXPECT_EQ(0, activeLayerCount());
EXPECT_EQ(0, frequentLayerCount(time));
}
} // namespace
} // namespace android::scheduler
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic pop // ignored "-Wconversion"
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