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/*
* 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.
*/
#pragma once
#include <gtest/gtest.h>
#include <gui/SurfaceComposerClient.h>
#include <gui/SurfaceControl.h>
#include <ui/Fence.h>
#include <utils/Timers.h>
#include <chrono>
#include <thread>
using ::std::literals::chrono_literals::operator""ms;
using ::std::literals::chrono_literals::operator""s;
namespace android {
namespace {
struct CallbackData {
CallbackData() = default;
CallbackData(nsecs_t time, const sp<Fence>& fence,
const std::vector<SurfaceControlStats>& stats)
: latchTime(time), presentFence(fence), surfaceControlStats(stats) {}
nsecs_t latchTime;
sp<Fence> presentFence;
std::vector<SurfaceControlStats> surfaceControlStats;
};
class ExpectedResult {
public:
enum Transaction {
NOT_PRESENTED = 0,
PRESENTED,
};
enum Buffer {
NOT_ACQUIRED = 0,
ACQUIRED,
};
enum PreviousBuffer {
NOT_RELEASED = 0,
RELEASED,
UNKNOWN,
};
void reset() {
mTransactionResult = ExpectedResult::Transaction::NOT_PRESENTED;
mExpectedSurfaceResults.clear();
}
void addSurface(ExpectedResult::Transaction transactionResult, const sp<SurfaceControl>& layer,
ExpectedResult::Buffer bufferResult = ACQUIRED,
ExpectedResult::PreviousBuffer previousBufferResult = NOT_RELEASED) {
mTransactionResult = transactionResult;
mExpectedSurfaceResults.emplace(std::piecewise_construct, std::forward_as_tuple(layer),
std::forward_as_tuple(bufferResult, previousBufferResult));
}
void addSurfaces(ExpectedResult::Transaction transactionResult,
const std::vector<sp<SurfaceControl>>& layers,
ExpectedResult::Buffer bufferResult = ACQUIRED,
ExpectedResult::PreviousBuffer previousBufferResult = NOT_RELEASED) {
for (const auto& layer : layers) {
addSurface(transactionResult, layer, bufferResult, previousBufferResult);
}
}
void addExpectedPresentTime(nsecs_t expectedPresentTime) {
mExpectedPresentTime = expectedPresentTime;
}
void addExpectedPresentTimeForVsyncId(nsecs_t expectedPresentTime) {
mExpectedPresentTimeForVsyncId = expectedPresentTime;
}
void verifyCallbackData(const CallbackData& callbackData) const {
const auto& [latchTime, presentFence, surfaceControlStats] = callbackData;
if (mTransactionResult == ExpectedResult::Transaction::PRESENTED) {
ASSERT_GE(latchTime, 0) << "bad latch time";
ASSERT_NE(presentFence, nullptr);
if (mExpectedPresentTime >= 0) {
ASSERT_EQ(presentFence->wait(3000), NO_ERROR);
ASSERT_GE(presentFence->getSignalTime(), mExpectedPresentTime - nsecs_t(5 * 1e6));
// if the panel is running at 30 hz, at the worst case, our expected time just
// misses vsync and we have to wait another 33.3ms
ASSERT_LE(presentFence->getSignalTime(),
mExpectedPresentTime + nsecs_t(66.666666 * 1e6));
} else if (mExpectedPresentTimeForVsyncId >= 0) {
ASSERT_EQ(presentFence->wait(3000), NO_ERROR);
// We give 4ms for prediction error
ASSERT_GE(presentFence->getSignalTime(),
mExpectedPresentTimeForVsyncId - 4'000'000);
}
} else {
ASSERT_EQ(presentFence, nullptr) << "transaction shouldn't have been presented";
ASSERT_EQ(latchTime, -1) << "unpresented transactions shouldn't be latched";
}
ASSERT_EQ(surfaceControlStats.size(), mExpectedSurfaceResults.size())
<< "wrong number of surfaces";
for (const auto& stats : surfaceControlStats) {
ASSERT_NE(stats.surfaceControl, nullptr) << "returned null surface control";
const auto& expectedSurfaceResult = mExpectedSurfaceResults.find(stats.surfaceControl);
ASSERT_NE(expectedSurfaceResult, mExpectedSurfaceResults.end())
<< "unexpected surface control";
expectedSurfaceResult->second.verifySurfaceControlStats(stats, latchTime);
}
}
private:
class ExpectedSurfaceResult {
public:
ExpectedSurfaceResult(ExpectedResult::Buffer bufferResult,
ExpectedResult::PreviousBuffer previousBufferResult)
: mBufferResult(bufferResult), mPreviousBufferResult(previousBufferResult) {}
void verifySurfaceControlStats(const SurfaceControlStats& surfaceControlStats,
nsecs_t latchTime) const {
const auto& [surfaceControl, latch, acquireTimeOrFence, presentFence,
previousReleaseFence, transformHint, frameEvents] = surfaceControlStats;
ASSERT_TRUE(std::holds_alternative<nsecs_t>(acquireTimeOrFence));
ASSERT_EQ(std::get<nsecs_t>(acquireTimeOrFence) > 0,
mBufferResult == ExpectedResult::Buffer::ACQUIRED)
<< "bad acquire time";
ASSERT_LE(std::get<nsecs_t>(acquireTimeOrFence), latchTime)
<< "acquire time should be <= latch time";
if (mPreviousBufferResult == ExpectedResult::PreviousBuffer::RELEASED) {
ASSERT_NE(previousReleaseFence, nullptr)
<< "failed to set release prev buffer fence";
} else if (mPreviousBufferResult == ExpectedResult::PreviousBuffer::NOT_RELEASED) {
ASSERT_EQ(previousReleaseFence, nullptr)
<< "should not have set released prev buffer fence";
}
}
private:
ExpectedResult::Buffer mBufferResult;
ExpectedResult::PreviousBuffer mPreviousBufferResult;
};
struct SCHash {
std::size_t operator()(const sp<SurfaceControl>& sc) const {
return std::hash<IBinder*>{}(sc->getHandle().get());
}
};
ExpectedResult::Transaction mTransactionResult = ExpectedResult::Transaction::NOT_PRESENTED;
nsecs_t mExpectedPresentTime = -1;
nsecs_t mExpectedPresentTimeForVsyncId = -1;
std::unordered_map<sp<SurfaceControl>, ExpectedSurfaceResult, SCHash> mExpectedSurfaceResults;
};
class CallbackHelper {
public:
static void function(void* callbackContext, nsecs_t latchTime, const sp<Fence>& presentFence,
const std::vector<SurfaceControlStats>& stats) {
if (!callbackContext) {
ALOGE("failed to get callback context");
}
CallbackHelper* helper = static_cast<CallbackHelper*>(callbackContext);
std::lock_guard lock(helper->mMutex);
helper->mCallbackDataQueue.emplace(latchTime, presentFence, stats);
helper->mConditionVariable.notify_all();
}
void getCallbackData(CallbackData* outData) {
std::unique_lock lock(mMutex);
if (mCallbackDataQueue.empty()) {
ASSERT_NE(mConditionVariable.wait_for(lock, std::chrono::seconds(3)),
std::cv_status::timeout)
<< "did not receive callback";
}
*outData = std::move(mCallbackDataQueue.front());
mCallbackDataQueue.pop();
}
void verifyFinalState() {
// Wait to see if there are extra callbacks
std::this_thread::sleep_for(500ms);
std::lock_guard lock(mMutex);
EXPECT_EQ(mCallbackDataQueue.size(), 0U) << "extra callbacks received";
mCallbackDataQueue = {};
}
void* getContext() { return static_cast<void*>(this); }
std::mutex mMutex;
std::condition_variable mConditionVariable;
std::queue<CallbackData> mCallbackDataQueue;
};
} // namespace
} // namespace android
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