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 <android/hardware/graphics/allocator/3.0/IAllocator.h>
25 #include <binder/IPCThreadState.h>
26 #include <binder/IServiceManager.h>
27 #include <binder/ProcessState.h>
28 #include <configstore/Utils.h>
29 #include <displayservice/DisplayService.h>
30 #include <hidl/LegacySupport.h>
31 #include <processgroup/sched_policy.h>
32 #include "SurfaceFlinger.h"
33 #include "SurfaceFlingerFactory.h"
34 #include "SurfaceFlingerProperties.h"
35
36 using namespace android;
37
startGraphicsAllocatorService()38 static status_t startGraphicsAllocatorService() {
39 using android::hardware::configstore::getBool;
40 using android::hardware::configstore::V1_0::ISurfaceFlingerConfigs;
41 if (!android::sysprop::start_graphics_allocator_service(false)) {
42 return OK;
43 }
44
45 status_t result = hardware::registerPassthroughServiceImplementation<
46 android::hardware::graphics::allocator::V3_0::IAllocator>();
47 if (result == OK) {
48 return OK;
49 }
50
51 result = hardware::registerPassthroughServiceImplementation<
52 android::hardware::graphics::allocator::V2_0::IAllocator>();
53 if (result != OK) {
54 ALOGE("could not start graphics allocator service");
55 return result;
56 }
57
58 return OK;
59 }
60
startDisplayService()61 static status_t startDisplayService() {
62 using android::frameworks::displayservice::V1_0::implementation::DisplayService;
63 using android::frameworks::displayservice::V1_0::IDisplayService;
64
65 sp<IDisplayService> displayservice = new DisplayService();
66 status_t err = displayservice->registerAsService();
67
68 if (err != OK) {
69 ALOGE("Could not register IDisplayService service.");
70 }
71
72 return err;
73 }
74
main(int,char **)75 int main(int, char**) {
76 signal(SIGPIPE, SIG_IGN);
77
78 hardware::configureRpcThreadpool(1 /* maxThreads */,
79 false /* callerWillJoin */);
80
81 startGraphicsAllocatorService();
82
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 = surfaceflinger::createSurfaceFlinger();
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 IServiceManager::DUMP_FLAG_PRIORITY_CRITICAL | IServiceManager::DUMP_FLAG_PROTO);
110
111 startDisplayService(); // dependency on SF getting registered above
112
113 struct sched_param param = {0};
114 param.sched_priority = 2;
115 if (sched_setscheduler(0, SCHED_FIFO, ¶m) != 0) {
116 ALOGE("Couldn't set SCHED_FIFO");
117 }
118
119 // run surface flinger in this thread
120 flinger->run();
121
122 return 0;
123 }
124