1 /*
2 * Copyright (c) 2021 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 HDI_UTILS_DATA_STUB_INF_H
17 #define HDI_UTILS_DATA_STUB_INF_H
18
19 #include <list>
20 #include <map>
21 #include <vector>
22 #include <message_parcel.h>
23 #include <iservmgr_hdi.h>
24 #include "v1_0/types.h"
25 #include "camera_metadata_info.h"
26
27 namespace OHOS::Camera {
28 using namespace OHOS::HDI::Camera::V1_0;
29 class UtilsDataStub {
30 public:
31 static bool EncodeCameraMetadata(const std::shared_ptr<CameraMetadata> &metadata,
32 MessageParcel &data);
33 static void DecodeCameraMetadata(MessageParcel &data, std::shared_ptr<CameraMetadata> &metadata);
34 static bool EncodeStreamInfo(const std::shared_ptr<StreamInfo> &pInfo, MessageParcel &parcel);
35 static void DecodeStreamInfo(MessageParcel &parcel, std::shared_ptr<StreamInfo> &pInfo);
36 static bool ConvertMetadataToVec(const std::shared_ptr<CameraMetadata> &metadata,
37 std::vector<uint8_t>& cameraAbility);
38 static void ConvertVecToMetadata(const std::vector<uint8_t>& cameraAbility,
39 std::shared_ptr<CameraMetadata> &metadata);
40
41 private:
42 static int32_t GetDataSize(uint8_t type);
43 static bool WriteMetadata(const camera_metadata_item_t &entry, MessageParcel &data);
44 static bool ReadMetadata(camera_metadata_item_t &entry, MessageParcel &data);
45 static void EntryDataToBuffer(const camera_metadata_item_t &entry, void **buffer);
46 static bool WriteMetadataDataToVec(const camera_metadata_item_t &entry, std::vector<uint8_t>& cameraAbility);
47 static bool ReadMetadataDataFromVec(int32_t &index, camera_metadata_item_t &entry,
48 const std::vector<uint8_t>& cameraAbility);
49 template <class T> static void WriteData(T data, std::vector<uint8_t>& cameraAbility);
50 template <class T> static void ReadData(T &data, int32_t &index, const std::vector<uint8_t>& cameraAbility);
51 };
52
53 template <class T>
WriteData(T data,std::vector<uint8_t> & cameraAbility)54 void UtilsDataStub::WriteData(T data, std::vector<uint8_t>& cameraAbility)
55 {
56 T dataTemp = data;
57 uint8_t *dataPtr = (uint8_t *)&dataTemp;
58 for (size_t j = 0; j < sizeof(T); j++) {
59 cameraAbility.push_back(*(dataPtr + j));
60 }
61 }
62
63 template <class T>
ReadData(T & data,int32_t & index,const std::vector<uint8_t> & cameraAbility)64 void UtilsDataStub::ReadData(T &data, int32_t &index, const std::vector<uint8_t>& cameraAbility)
65 {
66 constexpr uint32_t typeLen = sizeof(T);
67 uint8_t array[typeLen] = {0};
68 T *ptr = nullptr;
69 for (size_t j = 0; j < sizeof(T); j++) {
70 array[j] = cameraAbility.at(index++);
71 }
72 ptr = (T *)array;
73 data = *ptr;
74 }
75 }
76 #endif // HDI_UTILS_DATA_STUB_INF_H
77