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#include "data_buffer.h"
17
18#include "dscreen_errcode.h"
19#include "dscreen_log.h"
20#include <new>
21#include <securec.h>
22
23namespace OHOS {
24namespace DistributedHardware {
25DataBuffer::DataBuffer(size_t capacity)
26{
27    if (capacity != 0) {
28        data_ = new (std::nothrow) uint8_t[capacity] {0};
29        if (data_ != nullptr) {
30            capacity_ = capacity;
31        }
32    }
33    dataType_ = 0;
34}
35
36DataBuffer::~DataBuffer()
37{
38    if (data_ != nullptr) {
39        delete [] data_;
40        data_ = nullptr;
41    }
42    dirtyRectVec_.clear();
43    dataType_ = 0;
44    frameNumber_ = 0;
45    capacity_ = 0;
46}
47
48size_t DataBuffer::Capacity() const
49{
50    return capacity_;
51}
52
53uint8_t *DataBuffer::Data() const
54{
55    return data_;
56}
57
58void DataBuffer::SetSize(size_t size)
59{
60    capacity_ = size;
61}
62
63void DataBuffer::SetDataType(uint8_t dataType)
64{
65    dataType_ = dataType;
66}
67
68uint8_t DataBuffer::DataType()
69{
70    return dataType_;
71}
72
73void DataBuffer::SetDataNumber(size_t number)
74{
75    frameNumber_ = number;
76}
77
78size_t DataBuffer::DataNumber()
79{
80    return frameNumber_;
81}
82
83void DataBuffer::ResetCapcity(size_t capacity)
84{
85    DHLOGI("%{public}s: ResetCapcity.", DSCREEN_LOG_TAG);
86    if (capacity < capacity_) {
87        return;
88    }
89    delete [] data_;
90    data_ = new (std::nothrow) uint8_t[capacity] {0};
91    if (data_ == nullptr) {
92        capacity_ = 0;
93    } else {
94        capacity_ = capacity;
95    }
96}
97
98void DataBuffer::AddData(size_t dataSize, unsigned char* &inputData)
99{
100    if (inputData == nullptr) {
101        return;
102    }
103    int32_t ret = memcpy_s(data_ + capacity_, dataSize, inputData, dataSize);
104    if (ret != EOK) {
105        DHLOGE("%{public}s: in AddData memcpy data failed, ret: %{public}" PRId32, DSCREEN_LOG_TAG, ret);
106        return;
107    }
108    capacity_ += dataSize;
109}
110
111void DataBuffer::AddDirtyRect(DirtyRect rect)
112{
113    dirtyRectVec_.push_back(rect);
114}
115
116std::vector<DirtyRect> DataBuffer::GetDirtyRectVec()
117{
118    return dirtyRectVec_;
119}
120
121int32_t DataBuffer::GetData(int32_t offset, int32_t datasize, uint8_t* &output)
122{
123    if (static_cast<unsigned long>(offset + datasize) > capacity_ || output == nullptr) {
124        DHLOGE("DataBuffer GetData parameter invalid.");
125        return ERR_DH_SCREEN_INPUT_PARAM_INVALID;
126    }
127    int32_t ret = memcpy_s(output, datasize, data_ + offset, datasize);
128    if (ret != EOK) {
129        DHLOGE("GetData memcpy data failed, ret: %{public}" PRId32, ret);
130        return ret;
131    }
132    return DH_SUCCESS;
133}
134} // namespace DistributedHardware
135} // namespace OHOS