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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.
*/
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wconversion"
//#define LOG_NDEBUG 0
#undef LOG_TAG
#define LOG_TAG "TransactionCallbackInvoker"
#define ATRACE_TAG ATRACE_TAG_GRAPHICS
#include "TransactionCallbackInvoker.h"
#include "BackgroundExecutor.h"
#include "Utils/FenceUtils.h"
#include <cinttypes>
#include <binder/IInterface.h>
#include <utils/RefBase.h>
namespace android {
// Returns 0 if they are equal
// <0 if the first id that doesn't match is lower in c2 or all ids match but c2 is shorter
// >0 if the first id that doesn't match is greater in c2 or all ids match but c2 is longer
//
// See CallbackIdsHash for a explanation of why this works
static int compareCallbackIds(const std::vector<CallbackId>& c1,
const std::vector<CallbackId>& c2) {
if (c1.empty()) {
return !c2.empty();
}
return c1.front().id - c2.front().id;
}
static bool containsOnCommitCallbacks(const std::vector<CallbackId>& callbacks) {
return !callbacks.empty() && callbacks.front().type == CallbackId::Type::ON_COMMIT;
}
void TransactionCallbackInvoker::addEmptyTransaction(const ListenerCallbacks& listenerCallbacks) {
auto& [listener, callbackIds] = listenerCallbacks;
auto& transactionStatsDeque = mCompletedTransactions[listener];
transactionStatsDeque.emplace_back(callbackIds);
}
status_t TransactionCallbackInvoker::addOnCommitCallbackHandles(
const std::deque<sp<CallbackHandle>>& handles,
std::deque<sp<CallbackHandle>>& outRemainingHandles) {
if (handles.empty()) {
return NO_ERROR;
}
const std::vector<JankData>& jankData = std::vector<JankData>();
for (const auto& handle : handles) {
if (!containsOnCommitCallbacks(handle->callbackIds)) {
outRemainingHandles.push_back(handle);
continue;
}
status_t err = addCallbackHandle(handle, jankData);
if (err != NO_ERROR) {
return err;
}
}
return NO_ERROR;
}
status_t TransactionCallbackInvoker::addCallbackHandles(
const std::deque<sp<CallbackHandle>>& handles, const std::vector<JankData>& jankData) {
if (handles.empty()) {
return NO_ERROR;
}
for (const auto& handle : handles) {
status_t err = addCallbackHandle(handle, jankData);
if (err != NO_ERROR) {
return err;
}
}
return NO_ERROR;
}
status_t TransactionCallbackInvoker::findOrCreateTransactionStats(
const sp<IBinder>& listener, const std::vector<CallbackId>& callbackIds,
TransactionStats** outTransactionStats) {
auto& transactionStatsDeque = mCompletedTransactions[listener];
// Search back to front because the most recent transactions are at the back of the deque
auto itr = transactionStatsDeque.rbegin();
for (; itr != transactionStatsDeque.rend(); itr++) {
if (compareCallbackIds(itr->callbackIds, callbackIds) == 0) {
*outTransactionStats = &(*itr);
return NO_ERROR;
}
}
*outTransactionStats = &transactionStatsDeque.emplace_back(callbackIds);
return NO_ERROR;
}
status_t TransactionCallbackInvoker::addCallbackHandle(const sp<CallbackHandle>& handle,
const std::vector<JankData>& jankData) {
// If we can't find the transaction stats something has gone wrong. The client should call
// startRegistration before trying to add a callback handle.
TransactionStats* transactionStats;
status_t err =
findOrCreateTransactionStats(handle->listener, handle->callbackIds, &transactionStats);
if (err != NO_ERROR) {
return err;
}
transactionStats->latchTime = handle->latchTime;
// If the layer has already been destroyed, don't add the SurfaceControl to the callback.
// The client side keeps a sp<> to the SurfaceControl so if the SurfaceControl has been
// destroyed the client side is dead and there won't be anyone to send the callback to.
sp<IBinder> surfaceControl = handle->surfaceControl.promote();
if (surfaceControl) {
sp<Fence> prevFence = nullptr;
for (const auto& future : handle->previousReleaseFences) {
mergeFence(handle->name.c_str(), future.get().value_or(Fence::NO_FENCE), prevFence);
}
handle->previousReleaseFence = prevFence;
handle->previousReleaseFences.clear();
FrameEventHistoryStats eventStats(handle->frameNumber, handle->previousFrameNumber,
handle->gpuCompositionDoneFence->getSnapshot().fence,
handle->compositorTiming, handle->refreshStartTime,
handle->dequeueReadyTime);
transactionStats->surfaceStats.emplace_back(surfaceControl, handle->acquireTimeOrFence,
handle->previousReleaseFence,
handle->transformHint,
handle->currentMaxAcquiredBufferCount,
eventStats, jankData,
handle->previousReleaseCallbackId);
}
return NO_ERROR;
}
void TransactionCallbackInvoker::addPresentFence(sp<Fence> presentFence) {
mPresentFence = std::move(presentFence);
}
void TransactionCallbackInvoker::sendCallbacks(bool onCommitOnly) {
// For each listener
auto completedTransactionsItr = mCompletedTransactions.begin();
BackgroundExecutor::Callbacks callbacks;
while (completedTransactionsItr != mCompletedTransactions.end()) {
auto& [listener, transactionStatsDeque] = *completedTransactionsItr;
ListenerStats listenerStats;
listenerStats.listener = listener;
// For each transaction
auto transactionStatsItr = transactionStatsDeque.begin();
while (transactionStatsItr != transactionStatsDeque.end()) {
auto& transactionStats = *transactionStatsItr;
if (onCommitOnly && !containsOnCommitCallbacks(transactionStats.callbackIds)) {
transactionStatsItr++;
continue;
}
// If the transaction has been latched
if (transactionStats.latchTime >= 0 &&
!containsOnCommitCallbacks(transactionStats.callbackIds)) {
transactionStats.presentFence = mPresentFence;
}
// Remove the transaction from completed to the callback
listenerStats.transactionStats.push_back(std::move(transactionStats));
transactionStatsItr = transactionStatsDeque.erase(transactionStatsItr);
}
// If the listener has completed transactions
if (!listenerStats.transactionStats.empty()) {
// If the listener is still alive
if (listener->isBinderAlive()) {
// Send callback. The listener stored in listenerStats
// comes from the cross-process setTransactionState call to
// SF. This MUST be an ITransactionCompletedListener. We
// keep it as an IBinder due to consistency reasons: if we
// interface_cast at the IPC boundary when reading a Parcel,
// we get pointers that compare unequal in the SF process.
callbacks.emplace_back([stats = std::move(listenerStats)]() {
interface_cast<ITransactionCompletedListener>(stats.listener)
->onTransactionCompleted(stats);
});
}
}
completedTransactionsItr++;
}
if (mPresentFence) {
mPresentFence.clear();
}
BackgroundExecutor::getInstance().sendCallbacks(std::move(callbacks));
}
// -----------------------------------------------------------------------
CallbackHandle::CallbackHandle(const sp<IBinder>& transactionListener,
const std::vector<CallbackId>& ids, const sp<IBinder>& sc)
: listener(transactionListener), callbackIds(ids), surfaceControl(sc) {}
} // namespace android
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic pop // ignored "-Wconversion"
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