diff options
Diffstat (limited to 'externals/oboe/src/common/AdpfWrapper.cpp')
| -rw-r--r-- | externals/oboe/src/common/AdpfWrapper.cpp | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/externals/oboe/src/common/AdpfWrapper.cpp b/externals/oboe/src/common/AdpfWrapper.cpp deleted file mode 100644 index e03880a503..0000000000 --- a/externals/oboe/src/common/AdpfWrapper.cpp +++ /dev/null @@ -1,150 +0,0 @@ -/* - * Copyright 2021 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 <dlfcn.h> -#include <stdint.h> -#include <sys/types.h> - -#include "oboe/AudioClock.h" -#include "AdpfWrapper.h" -#include "OboeDebug.h" -#include "Trace.h" - -using namespace oboe; - -typedef APerformanceHintManager* (*APH_getManager)(); -typedef APerformanceHintSession* (*APH_createSession)(APerformanceHintManager*, const int32_t*, - size_t, int64_t); -typedef void (*APH_reportActualWorkDuration)(APerformanceHintSession*, int64_t); -typedef void (*APH_closeSession)(APerformanceHintSession* session); - -static bool gAPerformanceHintBindingInitialized = false; -static APH_getManager gAPH_getManagerFn = nullptr; -static APH_createSession gAPH_createSessionFn = nullptr; -static APH_reportActualWorkDuration gAPH_reportActualWorkDurationFn = nullptr; -static APH_closeSession gAPH_closeSessionFn = nullptr; - -static int loadAphFunctions() { - if (gAPerformanceHintBindingInitialized) return true; - - void* handle_ = dlopen("libandroid.so", RTLD_NOW | RTLD_NODELETE); - if (handle_ == nullptr) { - return -1000; - } - - gAPH_getManagerFn = (APH_getManager)dlsym(handle_, "APerformanceHint_getManager"); - if (gAPH_getManagerFn == nullptr) { - return -1001; - } - - gAPH_createSessionFn = (APH_createSession)dlsym(handle_, "APerformanceHint_createSession"); - if (gAPH_getManagerFn == nullptr) { - return -1002; - } - - gAPH_reportActualWorkDurationFn = (APH_reportActualWorkDuration)dlsym( - handle_, "APerformanceHint_reportActualWorkDuration"); - if (gAPH_getManagerFn == nullptr) { - return -1003; - } - - gAPH_closeSessionFn = (APH_closeSession)dlsym(handle_, "APerformanceHint_closeSession"); - if (gAPH_getManagerFn == nullptr) { - return -1004; - } - - gAPerformanceHintBindingInitialized = true; - - Trace::initialize(); - - return 0; -} - -bool AdpfWrapper::sUseAlternativeHack = false; // TODO remove hack - -int AdpfWrapper::open(pid_t threadId, - int64_t targetDurationNanos) { - std::lock_guard<std::mutex> lock(mLock); - int result = loadAphFunctions(); - if (result < 0) return result; - - // This is a singleton. - APerformanceHintManager* manager = gAPH_getManagerFn(); - - int32_t thread32 = threadId; - if (sUseAlternativeHack) { - // TODO Remove this hack when we finish experimenting with alternative algorithms. - // The A5 is an arbitrary signal to a hacked version of ADPF to try an alternative - // algorithm that is not based on PID. - targetDurationNanos = (targetDurationNanos & ~0xFF) | 0xA5; - } - mHintSession = gAPH_createSessionFn(manager, &thread32, 1 /* size */, targetDurationNanos); - if (mHintSession == nullptr) { - return -1; - } - return 0; -} - -void AdpfWrapper::reportActualDuration(int64_t actualDurationNanos) { - //LOGD("ADPF Oboe %s(dur=%lld)", __func__, (long long)actualDurationNanos); - std::lock_guard<std::mutex> lock(mLock); - Trace::beginSection("reportActualDuration"); - Trace::setCounter("actualDurationNanos", actualDurationNanos); - if (mHintSession != nullptr) { - gAPH_reportActualWorkDurationFn(mHintSession, actualDurationNanos); - } - Trace::endSection(); -} - -void AdpfWrapper::close() { - std::lock_guard<std::mutex> lock(mLock); - if (mHintSession != nullptr) { - gAPH_closeSessionFn(mHintSession); - mHintSession = nullptr; - } -} - -void AdpfWrapper::onBeginCallback() { - if (isOpen()) { - mBeginCallbackNanos = oboe::AudioClock::getNanoseconds(); - } -} - -void AdpfWrapper::onEndCallback(double durationScaler) { - if (isOpen()) { - int64_t endCallbackNanos = oboe::AudioClock::getNanoseconds(); - int64_t actualDurationNanos = endCallbackNanos - mBeginCallbackNanos; - int64_t scaledDurationNanos = static_cast<int64_t>(actualDurationNanos * durationScaler); - reportActualDuration(scaledDurationNanos); - // When the workload is non-zero, update the conversion factor from workload - // units to nanoseconds duration. - if (mPreviousWorkload > 0) { - mNanosPerWorkloadUnit = ((double) scaledDurationNanos) / mPreviousWorkload; - } - } -} - -void AdpfWrapper::reportWorkload(int32_t appWorkload) { - if (isOpen()) { - // Compare with previous workload. If we think we will need more - // time to render the callback then warn ADPF as soon as possible. - if (appWorkload > mPreviousWorkload && mNanosPerWorkloadUnit > 0.0) { - int64_t predictedDuration = (int64_t) (appWorkload * mNanosPerWorkloadUnit); - reportActualDuration(predictedDuration); - } - mPreviousWorkload = appWorkload; - } -} |
