1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include "vsync_station.h" 17 18 #include <unistd.h> 19 #include "transaction/rs_interfaces.h" 20 #include "window_manager_hilog.h" 21 22 23 namespace OHOS { 24 namespace Rosen { 25 namespace { 26 constexpr HiviewDFX::HiLogLabel LABEL = {LOG_CORE, HILOG_DOMAIN_WINDOW, "VsyncStation"}; 27 } WM_IMPLEMENT_SINGLE_INSTANCE(VsyncStation)28WM_IMPLEMENT_SINGLE_INSTANCE(VsyncStation) 29 30 void VsyncStation::RequestVsync(const std::shared_ptr<VsyncCallback>& vsyncCallback) 31 { 32 { 33 std::lock_guard<std::mutex> lock(mtx_); 34 if (destroyed_) { 35 return; 36 } 37 vsyncCallbacks_.insert(vsyncCallback); 38 39 if (!hasInitVsyncReceiver_) { 40 auto& rsClient = OHOS::Rosen::RSInterfaces::GetInstance(); 41 while (receiver_ == nullptr) { 42 receiver_ = rsClient.CreateVSyncReceiver("WM_" + std::to_string(getpid())); 43 } 44 receiver_->Init(); 45 hasInitVsyncReceiver_ = true; 46 } 47 if (hasRequestedVsync_) { 48 return; 49 } 50 hasRequestedVsync_ = true; 51 } 52 receiver_->RequestNextVSync(frameCallback_); 53 } 54 GetVSyncPeriod()55int64_t VsyncStation::GetVSyncPeriod() 56 { 57 return 0; 58 } 59 Init()60void VsyncStation::Init() 61 { 62 } 63 RemoveCallback()64void VsyncStation::RemoveCallback() 65 { 66 WLOGI("Remove Vsync callback"); 67 std::lock_guard<std::mutex> lock(mtx_); 68 vsyncCallbacks_.clear(); 69 } 70 VsyncCallbackInner(int64_t timestamp)71void VsyncStation::VsyncCallbackInner(int64_t timestamp) 72 { 73 std::unordered_set<std::shared_ptr<VsyncCallback>> vsyncCallbacks; 74 { 75 std::lock_guard<std::mutex> lock(mtx_); 76 hasRequestedVsync_ = false; 77 vsyncCallbacks = vsyncCallbacks_; 78 vsyncCallbacks_.clear(); 79 } 80 for (const auto& callback: vsyncCallbacks) { 81 callback->onCallback(timestamp); 82 } 83 } 84 OnVsync(int64_t timestamp,void * client)85void VsyncStation::OnVsync(int64_t timestamp, void* client) 86 { 87 auto vsyncClient = static_cast<VsyncStation*>(client); 88 if (vsyncClient) { 89 vsyncClient->VsyncCallbackInner(timestamp); 90 } else { 91 WLOGFE("VsyncClient is null"); 92 } 93 } 94 OnVsyncTimeOut()95void VsyncStation::OnVsyncTimeOut() 96 { 97 WLOGW("Vsync time out"); 98 std::lock_guard<std::mutex> lock(mtx_); 99 hasRequestedVsync_ = false; 100 } 101 } 102 } 103