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1 /*
2  * Copyright (c) 2021-2023 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 #ifndef ROSEN_RENDER_SERVICE_BASE_RS_TRANSACTION_PROXY_H
17 #define ROSEN_RENDER_SERVICE_BASE_RS_TRANSACTION_PROXY_H
18 
19 #include <memory>
20 #include <mutex>
21 #include <stack>
22 
23 #include "command/rs_command.h"
24 #include "common/rs_macros.h"
25 #include "common/rs_singleton.h"
26 #include "common/rs_macros.h"
27 #include "transaction/rs_irender_client.h"
28 #include "transaction/rs_transaction_data.h"
29 
30 namespace OHOS {
31 namespace Rosen {
32 class RSSyncTask;
33 class RSB_EXPORT RSTransactionProxy final {
34 public:
35     static RSB_EXPORT RSTransactionProxy* GetInstance();
36     void SetRenderThreadClient(std::unique_ptr<RSIRenderClient>& renderThreadClient);
37     void SetRenderServiceClient(const std::shared_ptr<RSIRenderClient>& renderServiceClient);
38 
39     void AddCommand(std::unique_ptr<RSCommand>& command, bool isRenderServiceCommand = false,
40                     FollowType followType = FollowType::NONE, NodeId nodeId = 0);
41     void AddCommandFromRT(std::unique_ptr<RSCommand>& command, NodeId nodeId, FollowType followType = FollowType::FOLLOW_TO_PARENT);
42 
43     void FlushImplicitTransaction(uint64_t timestamp = 0, const std::string& abilityName = "");
44     void FlushImplicitTransactionFromRT(uint64_t timestamp);
45 
46     void ExecuteSynchronousTask(const std::shared_ptr<RSSyncTask>& task, bool isRenderServiceTask = false);
47 
48     void Begin();
49     void Commit(uint64_t timestamp = 0);
50 
51 private:
52     RSTransactionProxy();
53     virtual ~RSTransactionProxy();
54     static void Init();
55     static void Destroy();
56 
57     RSTransactionProxy(const RSTransactionProxy&) = delete;
58     RSTransactionProxy(const RSTransactionProxy&&) = delete;
59     RSTransactionProxy& operator=(const RSTransactionProxy&) = delete;
60     RSTransactionProxy& operator=(const RSTransactionProxy&&) = delete;
61 
62     void AddCommonCommand(std::unique_ptr<RSCommand>& command);
63     void AddRemoteCommand(std::unique_ptr<RSCommand>& command, NodeId nodeId, FollowType followType);
64 
65     // Command Transaction Triggered by UI Thread.
66     std::mutex mutex_;
67     std::unique_ptr<RSTransactionData> implicitCommonTransactionData_{std::make_unique<RSTransactionData>()};
68     std::unique_ptr<RSTransactionData> implicitRemoteTransactionData_{std::make_unique<RSTransactionData>()};
69 
70     std::stack<std::unique_ptr<RSTransactionData>> implicitCommonTransactionDataStack_;
71     std::stack<std::unique_ptr<RSTransactionData>> implicitRemoteTransactionDataStack_;
72 
73     // Command Transaction Triggered by Render Thread which is definitely send to Render Service.
74     std::mutex mutexForRT_;
75     std::unique_ptr<RSTransactionData> implicitTransactionDataFromRT_{std::make_unique<RSTransactionData>()};
76 
77     std::shared_ptr<RSIRenderClient> renderServiceClient_ = RSIRenderClient::CreateRenderServiceClient();
78     std::unique_ptr<RSIRenderClient> renderThreadClient_ = nullptr;
79     uint64_t timestamp_ = 0;
80     static std::once_flag flag_;
81     static RSTransactionProxy* instance_;
82 };
83 } // namespace Rosen
84 } // namespace OHOS
85 
86 #endif // ROSEN_RENDER_SERVICE_BASE_RS_TRANSACTION_PROXY_H
87