1/*
2 * Copyright (c) 2022-2024 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 OHOS_DATA_BUFFER_H
17#define OHOS_DATA_BUFFER_H
18
19#include <cstdint>
20#include <cstddef>
21#include <vector>
22
23#include "dscreen_constants.h"
24
25namespace OHOS {
26namespace DistributedHardware {
27struct DirtyRect {
28    uint32_t xPos;
29    uint32_t yPos;
30    uint32_t width;
31    uint32_t height;
32    uint32_t dirtySize;
33};
34class DataBuffer {
35public:
36    explicit DataBuffer(size_t capacity);
37    ~DataBuffer();
38
39    size_t Capacity() const;
40    uint8_t *Data() const;
41    void SetSize(size_t size);
42    void SetDataType(uint8_t dataType);
43    uint8_t DataType();
44    void SetDataNumber(size_t number);
45    size_t DataNumber();
46    void ResetCapcity(size_t capacity);
47    void AddData(size_t dataSize, unsigned char* &inputData);
48    void AddDirtyRect(DirtyRect rec);
49    std::vector<DirtyRect> GetDirtyRectVec();
50    int32_t GetData(int32_t offset, int32_t datasize, uint8_t* &output);
51private:
52    static const constexpr char *DSCREEN_LOG_TAG = "DataBuffer";
53    std::vector<DirtyRect> dirtyRectVec_;
54    size_t capacity_ = 0;
55    uint8_t *data_ = nullptr;
56    uint8_t dataType_ = 0;
57    size_t frameNumber_ = 0;
58};
59} // namespace DistributedHardware
60} // namespace OHOS
61#endif