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 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> std::enable_if_t<std::is_pod<T>, void> WriteData(T data, std::vector<uint8_t> &cameraAbility);
50 template <class T> std::enable_if_t<std::is_pod<T>, void> ReadData(T &data, int32_t &index,
51 const std::vector<uint8_t> &cameraAbility);
52 };
53
54 template <class T>
WriteData(T data,std::vector<uint8_t> & cameraAbility)55 static std::enable_if_t<std::is_pod<T>, void> UtilsDataStub::WriteData(T data, std::vector<uint8_t> &cameraAbility)
56 {
57 T dataTemp = data;
58 uint8_t *dataPtr = (uint8_t *)&dataTemp;
59 for (size_t j = 0; j < sizeof(T); j++) {
60 cameraAbility.push_back(*(dataPtr + j));
61 }
62 }
63
64 template <class T>
ReadData(T & data,int32_t & index,const std::vector<uint8_t> & cameraAbility)65 static std::enable_if_t<std::is_pod<T>, void> UtilsDataStub::ReadData(T &data, int32_t &index,
66 const std::vector<uint8_t> &cameraAbility)
67 {
68 constexpr uint32_t typeLen = sizeof(T);
69 uint8_t array[typeLen] = {0};
70 T *ptr = nullptr;
71 for (size_t j = 0; j < sizeof(T); j++) {
72 array[j] = cameraAbility.at(index++);
73 }
74 ptr = (T *)array;
75 data = *ptr;
76 }
77 }
78 #endif // HDI_UTILS_DATA_STUB_INF_H
79