main_surfaceflinger.cpp revision 6ad20f7271c05bfa1e7bb4b67a8fa72f4a08756a 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <sys/resource.h>
18
19#include <sched.h>
20
21#include <android/frameworks/displayservice/1.0/IDisplayService.h>
22#include <android/hardware/configstore/1.0/ISurfaceFlingerConfigs.h>
23#include <android/hardware/graphics/allocator/2.0/IAllocator.h>
24#include <cutils/sched_policy.h>
25#include <binder/IServiceManager.h>
26#include <binder/IPCThreadState.h>
27#include <binder/ProcessState.h>
28#include <binder/IServiceManager.h>
29#include <displayservice/DisplayService.h>
30#include <hidl/LegacySupport.h>
31#include <configstore/Utils.h>
32#include "GpuService.h"
33#include "SurfaceFlinger.h"
34
35using namespace android;
36
37static status_t startGraphicsAllocatorService() {
38    using android::hardware::graphics::allocator::V2_0::IAllocator;
39
40    status_t result =
41        hardware::registerPassthroughServiceImplementation<IAllocator>();
42    if (result != OK) {
43        ALOGE("could not start graphics allocator service");
44        return result;
45    }
46
47    return OK;
48}
49
50static status_t startHidlServices() {
51    using android::frameworks::displayservice::V1_0::implementation::DisplayService;
52    using android::frameworks::displayservice::V1_0::IDisplayService;
53    using android::hardware::configstore::getBool;
54    using android::hardware::configstore::getBool;
55    using android::hardware::configstore::V1_0::ISurfaceFlingerConfigs;
56    hardware::configureRpcThreadpool(1 /* maxThreads */,
57            false /* callerWillJoin */);
58
59    status_t err;
60
61    if (getBool<ISurfaceFlingerConfigs,
62            &ISurfaceFlingerConfigs::startGraphicsAllocatorService>(false)) {
63        err = startGraphicsAllocatorService();
64        if (err != OK) {
65           return err;
66        }
67    }
68
69    sp<IDisplayService> displayservice = new DisplayService();
70    err = displayservice->registerAsService();
71
72    if (err != OK) {
73        ALOGE("Could not register IDisplayService service.");
74    }
75
76    return err;
77}
78
79int main(int, char**) {
80    startHidlServices();
81
82    signal(SIGPIPE, SIG_IGN);
83    // When SF is launched in its own process, limit the number of
84    // binder threads to 4.
85    ProcessState::self()->setThreadPoolMaxThreadCount(4);
86
87    // start the thread pool
88    sp<ProcessState> ps(ProcessState::self());
89    ps->startThreadPool();
90
91    // instantiate surfaceflinger
92    sp<SurfaceFlinger> flinger = new SurfaceFlinger();
93
94    setpriority(PRIO_PROCESS, 0, PRIORITY_URGENT_DISPLAY);
95
96    set_sched_policy(0, SP_FOREGROUND);
97
98    // Put most SurfaceFlinger threads in the system-background cpuset
99    // Keeps us from unnecessarily using big cores
100    // Do this after the binder thread pool init
101    if (cpusets_enabled()) set_cpuset_policy(0, SP_SYSTEM);
102
103    // initialize before clients can connect
104    flinger->init();
105
106    // publish surface flinger
107    sp<IServiceManager> sm(defaultServiceManager());
108    sm->addService(String16(SurfaceFlinger::getServiceName()), flinger, false);
109
110    // publish GpuService
111    sp<GpuService> gpuservice = new GpuService();
112    sm->addService(String16(GpuService::SERVICE_NAME), gpuservice, false);
113
114    struct sched_param param = {0};
115    param.sched_priority = 2;
116    if (sched_setscheduler(0, SCHED_FIFO, &param) != 0) {
117        ALOGE("Couldn't set SCHED_FIFO");
118    }
119
120    // run surface flinger in this thread
121    flinger->run();
122
123    return 0;
124}
125