/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <sys/resource.h>
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#include <sched.h>
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#include <android/frameworks/displayservice/1.0/IDisplayService.h>
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#include <android/hardware/configstore/1.0/ISurfaceFlingerConfigs.h>
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#include <android/hardware/graphics/allocator/2.0/IAllocator.h>
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#include <android/hardware/graphics/allocator/3.0/IAllocator.h>
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#include <binder/IPCThreadState.h>
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#include <binder/IServiceManager.h>
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#include <binder/ProcessState.h>
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#include <configstore/Utils.h>
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#include <displayservice/DisplayService.h>
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#include <hidl/LegacySupport.h>
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#include <processgroup/sched_policy.h>
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#include "SurfaceFlinger.h"
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#include "SurfaceFlingerFactory.h"
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#include "SurfaceFlingerProperties.h"
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using namespace android;
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static status_t startGraphicsAllocatorService() {
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using android::hardware::configstore::getBool;
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using android::hardware::configstore::V1_0::ISurfaceFlingerConfigs;
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if (!android::sysprop::start_graphics_allocator_service(false)) {
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return OK;
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}
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status_t result = hardware::registerPassthroughServiceImplementation<
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android::hardware::graphics::allocator::V3_0::IAllocator>();
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if (result == OK) {
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return OK;
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}
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result = hardware::registerPassthroughServiceImplementation<
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android::hardware::graphics::allocator::V2_0::IAllocator>();
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if (result != OK) {
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ALOGE("could not start graphics allocator service");
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return result;
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}
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return OK;
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}
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static status_t startDisplayService() {
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using android::frameworks::displayservice::V1_0::implementation::DisplayService;
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using android::frameworks::displayservice::V1_0::IDisplayService;
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sp<IDisplayService> displayservice = new DisplayService();
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status_t err = displayservice->registerAsService();
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if (err != OK) {
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ALOGE("Could not register IDisplayService service.");
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}
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return err;
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}
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int main(int, char**) {
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signal(SIGPIPE, SIG_IGN);
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hardware::configureRpcThreadpool(1 /* maxThreads */,
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false /* callerWillJoin */);
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startGraphicsAllocatorService();
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// When SF is launched in its own process, limit the number of
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// binder threads to 4.
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ProcessState::self()->setThreadPoolMaxThreadCount(4);
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// start the thread pool
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sp<ProcessState> ps(ProcessState::self());
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ps->startThreadPool();
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// instantiate surfaceflinger
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sp<SurfaceFlinger> flinger = surfaceflinger::createSurfaceFlinger();
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setpriority(PRIO_PROCESS, 0, PRIORITY_URGENT_DISPLAY);
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set_sched_policy(0, SP_FOREGROUND);
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// Put most SurfaceFlinger threads in the system-background cpuset
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// Keeps us from unnecessarily using big cores
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// Do this after the binder thread pool init
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if (cpusets_enabled()) set_cpuset_policy(0, SP_SYSTEM);
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// initialize before clients can connect
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flinger->init();
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// publish surface flinger
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sp<IServiceManager> sm(defaultServiceManager());
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sm->addService(String16(SurfaceFlinger::getServiceName()), flinger, false,
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IServiceManager::DUMP_FLAG_PRIORITY_CRITICAL | IServiceManager::DUMP_FLAG_PROTO);
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startDisplayService(); // dependency on SF getting registered above
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struct sched_param param = {0};
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param.sched_priority = 2;
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if (sched_setscheduler(0, SCHED_FIFO, ¶m) != 0) {
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ALOGE("Couldn't set SCHED_FIFO");
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}
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// run surface flinger in this thread
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flinger->run();
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return 0;
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}
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