1 /*
2  * Copyright (c) 2024 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 RENDER_DATA_STORE_RENDER_DATA_STORE_POD_H
17 #define RENDER_DATA_STORE_RENDER_DATA_STORE_POD_H
18 
19 #include <cstdint>
20 #include <mutex>
21 
22 #include <base/containers/array_view.h>
23 #include <base/containers/string.h>
24 #include <base/containers/string_view.h>
25 #include <base/containers/unordered_map.h>
26 #include <base/containers/vector.h>
27 #include <base/util/uid.h>
28 #include <render/datastore/intf_render_data_store_pod.h>
29 #include <render/namespace.h>
30 
31 RENDER_BEGIN_NAMESPACE()
32 class IRenderContext;
33 /**
34 RenderDataStorePod implementation.
35 */
36 class RenderDataStorePod final : public IRenderDataStorePod {
37 public:
38     explicit RenderDataStorePod(const BASE_NS::string_view name);
39     ~RenderDataStorePod() override = default;
40 
CommitFrameData()41     void CommitFrameData() override {};
PreRender()42     void PreRender() override {};
PostRender()43     void PostRender() override {};
PreRenderBackend()44     void PreRenderBackend() override {};
PostRenderBackend()45     void PostRenderBackend() override {};
Clear()46     void Clear() override {};
GetFlags()47     uint32_t GetFlags() const override
48     {
49         return 0;
50     };
51 
52     void CreatePod(const BASE_NS::string_view typeName, const BASE_NS::string_view name,
53         const BASE_NS::array_view<const uint8_t> data) override;
54     void DestroyPod(const BASE_NS::string_view typeName, const BASE_NS::string_view name) override;
55 
56     void Set(const BASE_NS::string_view name, const BASE_NS::array_view<const uint8_t> data) override;
57     BASE_NS::array_view<const uint8_t> Get(const BASE_NS::string_view name) const override;
58 
59     BASE_NS::array_view<const BASE_NS::string> GetPodNames(const BASE_NS::string_view typeName) const override;
60 
61     // for plugin / factory interface
62     static constexpr const char* const TYPE_NAME = "RenderDataStorePod";
63 
64     static IRenderDataStore* Create(IRenderContext& renderContext, char const* name);
65     static void Destroy(IRenderDataStore* instance);
66 
GetTypeName()67     BASE_NS::string_view GetTypeName() const override
68     {
69         return TYPE_NAME;
70     }
71 
GetName()72     BASE_NS::string_view GetName() const override
73     {
74         return name_;
75     }
76 
GetUid()77     const BASE_NS::Uid& GetUid() const override
78     {
79         return UID;
80     }
81 
82 private:
83     const BASE_NS::string name_;
84 
85     // NOTE: allocate bigger blocks
86     BASE_NS::vector<uint8_t> dataStore_;
87 
88     struct OffsetToData {
89         uint32_t index { 0 };
90         uint32_t byteSize { 0 };
91     };
92     BASE_NS::unordered_map<BASE_NS::string, OffsetToData> nameToDataOffset_;
93 
94     BASE_NS::unordered_map<BASE_NS::string, BASE_NS::vector<BASE_NS::string>> typeNameToPodNames_;
95 
96     mutable std::mutex mutex_;
97 };
98 RENDER_END_NAMESPACE()
99 
100 #endif // RENDER_DATA_STORE_RENDER_DATA_STORE_POD_H
101