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
35 using namespace android;
36
startGraphicsAllocatorService()37 static status_t startGraphicsAllocatorService() {
38 using android::hardware::configstore::getBool;
39 using android::hardware::configstore::V1_0::ISurfaceFlingerConfigs;
40 if (!getBool<ISurfaceFlingerConfigs,
41 &ISurfaceFlingerConfigs::startGraphicsAllocatorService>(false)) {
42 return OK;
43 }
44
45 using android::hardware::graphics::allocator::V2_0::IAllocator;
46
47 status_t result =
48 hardware::registerPassthroughServiceImplementation<IAllocator>();
49 if (result != OK) {
50 ALOGE("could not start graphics allocator service");
51 return result;
52 }
53
54 return OK;
55 }
56
startDisplayService()57 static status_t startDisplayService() {
58 using android::frameworks::displayservice::V1_0::implementation::DisplayService;
59 using android::frameworks::displayservice::V1_0::IDisplayService;
60
61 sp<IDisplayService> displayservice = new DisplayService();
62 status_t err = displayservice->registerAsService();
63
64 if (err != OK) {
65 ALOGE("Could not register IDisplayService service.");
66 }
67
68 return err;
69 }
70
main(int,char **)71 int main(int, char**) {
72 signal(SIGPIPE, SIG_IGN);
73
74 hardware::configureRpcThreadpool(1 /* maxThreads */,
75 false /* callerWillJoin */);
76
77 startGraphicsAllocatorService();
78
79 // When SF is launched in its own process, limit the number of
80 // binder threads to 4.
81 ProcessState::self()->setThreadPoolMaxThreadCount(4);
82
83 // start the thread pool
84 sp<ProcessState> ps(ProcessState::self());
85 ps->startThreadPool();
86
87 // instantiate surfaceflinger
88 sp<SurfaceFlinger> flinger = new SurfaceFlinger();
89
90 setpriority(PRIO_PROCESS, 0, PRIORITY_URGENT_DISPLAY);
91
92 set_sched_policy(0, SP_FOREGROUND);
93
94 // Put most SurfaceFlinger threads in the system-background cpuset
95 // Keeps us from unnecessarily using big cores
96 // Do this after the binder thread pool init
97 if (cpusets_enabled()) set_cpuset_policy(0, SP_SYSTEM);
98
99 // initialize before clients can connect
100 flinger->init();
101
102 // publish surface flinger
103 sp<IServiceManager> sm(defaultServiceManager());
104 sm->addService(String16(SurfaceFlinger::getServiceName()), flinger, false,
105 IServiceManager::DUMP_FLAG_PRIORITY_CRITICAL);
106
107 // publish GpuService
108 sp<GpuService> gpuservice = new GpuService();
109 sm->addService(String16(GpuService::SERVICE_NAME), gpuservice, false);
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