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 // TODO(b/129481165): remove the #pragma below and fix conversion issues
18 #pragma clang diagnostic push
19 #pragma clang diagnostic ignored "-Wconversion"
20
21 #include <sys/resource.h>
22
23 #include <sched.h>
24
25 #include <android/frameworks/displayservice/1.0/IDisplayService.h>
26 #include <android/hardware/configstore/1.0/ISurfaceFlingerConfigs.h>
27 #include <android/hardware/graphics/allocator/2.0/IAllocator.h>
28 #include <android/hardware/graphics/allocator/3.0/IAllocator.h>
29 #include <binder/IPCThreadState.h>
30 #include <binder/IServiceManager.h>
31 #include <binder/ProcessState.h>
32 #include <configstore/Utils.h>
33 #include <displayservice/DisplayService.h>
34 #include <errno.h>
35 #include <hidl/LegacySupport.h>
36 #include <processgroup/sched_policy.h>
37 #include "SurfaceFlinger.h"
38 #include "SurfaceFlingerFactory.h"
39 #include "SurfaceFlingerProperties.h"
40
41 using namespace android;
42
startGraphicsAllocatorService()43 static status_t startGraphicsAllocatorService() {
44 using android::hardware::configstore::getBool;
45 using android::hardware::configstore::V1_0::ISurfaceFlingerConfigs;
46 if (!android::sysprop::start_graphics_allocator_service(false)) {
47 return OK;
48 }
49
50 status_t result = hardware::registerPassthroughServiceImplementation<
51 android::hardware::graphics::allocator::V3_0::IAllocator>();
52 if (result == OK) {
53 return OK;
54 }
55
56 result = hardware::registerPassthroughServiceImplementation<
57 android::hardware::graphics::allocator::V2_0::IAllocator>();
58 if (result != OK) {
59 ALOGE("could not start graphics allocator service");
60 return result;
61 }
62
63 return OK;
64 }
65
startDisplayService()66 static status_t startDisplayService() {
67 using android::frameworks::displayservice::V1_0::implementation::DisplayService;
68 using android::frameworks::displayservice::V1_0::IDisplayService;
69
70 sp<IDisplayService> displayservice = new DisplayService();
71 status_t err = displayservice->registerAsService();
72
73 if (err != OK) {
74 ALOGE("Could not register IDisplayService service.");
75 }
76
77 return err;
78 }
79
main(int,char **)80 int main(int, char**) {
81 signal(SIGPIPE, SIG_IGN);
82
83 hardware::configureRpcThreadpool(1 /* maxThreads */,
84 false /* callerWillJoin */);
85
86 startGraphicsAllocatorService();
87
88 // When SF is launched in its own process, limit the number of
89 // binder threads to 4.
90 ProcessState::self()->setThreadPoolMaxThreadCount(4);
91
92 // start the thread pool
93 sp<ProcessState> ps(ProcessState::self());
94 ps->startThreadPool();
95
96 // instantiate surfaceflinger
97 sp<SurfaceFlinger> flinger = surfaceflinger::createSurfaceFlinger();
98
99 setpriority(PRIO_PROCESS, 0, PRIORITY_URGENT_DISPLAY);
100
101 set_sched_policy(0, SP_FOREGROUND);
102
103 // Put most SurfaceFlinger threads in the system-background cpuset
104 // Keeps us from unnecessarily using big cores
105 // Do this after the binder thread pool init
106 if (cpusets_enabled()) set_cpuset_policy(0, SP_SYSTEM);
107
108 // initialize before clients can connect
109 flinger->init();
110
111 // publish surface flinger
112 sp<IServiceManager> sm(defaultServiceManager());
113 sm->addService(String16(SurfaceFlinger::getServiceName()), flinger, false,
114 IServiceManager::DUMP_FLAG_PRIORITY_CRITICAL | IServiceManager::DUMP_FLAG_PROTO);
115
116 startDisplayService(); // dependency on SF getting registered above
117
118 if (SurfaceFlinger::setSchedFifo(true) != NO_ERROR) {
119 ALOGW("Couldn't set to SCHED_FIFO: %s", strerror(errno));
120 }
121
122 // run surface flinger in this thread
123 flinger->run();
124
125 return 0;
126 }
127
128 // TODO(b/129481165): remove the #pragma below and fix conversion issues
129 #pragma clang diagnostic pop // ignored "-Wconversion"
130