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/*
* Copyright 2018 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 <binder/IInterface.h>
#include <binder/Parcel.h>
#include <binder/Parcelable.h>
#include <binder/SafeInterface.h>
#include <gui/FrameTimestamps.h>
#include <ui/Fence.h>
#include <utils/Timers.h>
#include <cstdint>
#include <unordered_map>
#include <unordered_set>
namespace android {
class ITransactionCompletedListener;
class ListenerCallbacks;
using CallbackId = int64_t;
class FrameEventHistoryStats : public Parcelable {
public:
status_t writeToParcel(Parcel* output) const override;
status_t readFromParcel(const Parcel* input) override;
FrameEventHistoryStats() = default;
FrameEventHistoryStats(uint64_t fn, const sp<Fence>& gpuCompFence, CompositorTiming compTiming,
nsecs_t refreshTime, nsecs_t dequeueReadyTime)
: frameNumber(fn),
gpuCompositionDoneFence(gpuCompFence),
compositorTiming(compTiming),
refreshStartTime(refreshTime),
dequeueReadyTime(dequeueReadyTime) {}
uint64_t frameNumber;
sp<Fence> gpuCompositionDoneFence;
CompositorTiming compositorTiming;
nsecs_t refreshStartTime;
nsecs_t dequeueReadyTime;
};
class SurfaceStats : public Parcelable {
public:
status_t writeToParcel(Parcel* output) const override;
status_t readFromParcel(const Parcel* input) override;
SurfaceStats() = default;
SurfaceStats(const sp<IBinder>& sc, nsecs_t time, const sp<Fence>& prevReleaseFence,
uint32_t hint, FrameEventHistoryStats frameEventStats)
: surfaceControl(sc),
acquireTime(time),
previousReleaseFence(prevReleaseFence),
transformHint(hint),
eventStats(frameEventStats) {}
sp<IBinder> surfaceControl;
nsecs_t acquireTime = -1;
sp<Fence> previousReleaseFence;
uint32_t transformHint = 0;
FrameEventHistoryStats eventStats;
};
class TransactionStats : public Parcelable {
public:
status_t writeToParcel(Parcel* output) const override;
status_t readFromParcel(const Parcel* input) override;
TransactionStats() = default;
TransactionStats(const std::vector<CallbackId>& ids) : callbackIds(ids) {}
TransactionStats(const std::unordered_set<CallbackId>& ids)
: callbackIds(ids.begin(), ids.end()) {}
TransactionStats(const std::vector<CallbackId>& ids, nsecs_t latch, const sp<Fence>& present,
const std::vector<SurfaceStats>& surfaces)
: callbackIds(ids), latchTime(latch), presentFence(present), surfaceStats(surfaces) {}
std::vector<CallbackId> callbackIds;
nsecs_t latchTime = -1;
sp<Fence> presentFence = nullptr;
std::vector<SurfaceStats> surfaceStats;
};
class ListenerStats : public Parcelable {
public:
status_t writeToParcel(Parcel* output) const override;
status_t readFromParcel(const Parcel* input) override;
static ListenerStats createEmpty(const sp<IBinder>& listener,
const std::unordered_set<CallbackId>& callbackIds);
sp<IBinder> listener;
std::vector<TransactionStats> transactionStats;
};
class ITransactionCompletedListener : public IInterface {
public:
DECLARE_META_INTERFACE(TransactionCompletedListener)
virtual void onTransactionCompleted(ListenerStats stats) = 0;
};
class BnTransactionCompletedListener : public SafeBnInterface<ITransactionCompletedListener> {
public:
BnTransactionCompletedListener()
: SafeBnInterface<ITransactionCompletedListener>("BnTransactionCompletedListener") {}
status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply,
uint32_t flags = 0) override;
};
class ListenerCallbacks {
public:
ListenerCallbacks(const sp<IBinder>& listener, const std::unordered_set<CallbackId>& callbacks)
: transactionCompletedListener(listener),
callbackIds(callbacks.begin(), callbacks.end()) {}
ListenerCallbacks(const sp<IBinder>& listener, const std::vector<CallbackId>& ids)
: transactionCompletedListener(listener), callbackIds(ids) {}
bool operator==(const ListenerCallbacks& rhs) const {
if (transactionCompletedListener != rhs.transactionCompletedListener) {
return false;
}
if (callbackIds.empty()) {
return rhs.callbackIds.empty();
}
return callbackIds.front() == rhs.callbackIds.front();
}
sp<IBinder> transactionCompletedListener;
std::vector<CallbackId> callbackIds;
};
struct IListenerHash {
std::size_t operator()(const sp<IBinder>& strongPointer) const {
return std::hash<IBinder*>{}(strongPointer.get());
}
};
struct CallbackIdsHash {
// CallbackId vectors have several properties that let us get away with this simple hash.
// 1) CallbackIds are never 0 so if something has gone wrong and our CallbackId vector is
// empty we can still hash 0.
// 2) CallbackId vectors for the same listener either are identical or contain none of the
// same members. It is sufficient to just check the first CallbackId in the vectors. If
// they match, they are the same. If they do not match, they are not the same.
std::size_t operator()(const std::vector<CallbackId>& callbackIds) const {
return std::hash<CallbackId>{}((callbackIds.empty()) ? 0 : callbackIds.front());
}
};
struct ListenerCallbacksHash {
std::size_t HashCombine(size_t value1, size_t value2) const {
return value1 ^ (value2 + 0x9e3779b9 + (value1 << 6) + (value1 >> 2));
}
std::size_t operator()(const ListenerCallbacks& listenerCallbacks) const {
struct IListenerHash listenerHasher;
struct CallbackIdsHash callbackIdsHasher;
std::size_t listenerHash = listenerHasher(listenerCallbacks.transactionCompletedListener);
std::size_t callbackIdsHash = callbackIdsHasher(listenerCallbacks.callbackIds);
return HashCombine(listenerHash, callbackIdsHash);
}
};
} // namespace android
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