1 /*
2 * Copyright (c) 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 #include "layer_cache.h"
17
18 #include "buffer_cache_utils.h"
19 #include "common/include/display_interface_utils.h"
20 #include "hdf_base.h"
21 #include "hdf_log.h"
22
23 namespace OHOS {
24 namespace HDI {
25 namespace Display {
26 namespace Composer {
27
Create(uint32_t id)28 LayerCache* LayerCache::Create(uint32_t id)
29 {
30 LayerCache* layer = new LayerCache(id);
31 DISPLAY_CHK_RETURN(layer == nullptr, nullptr, HDF_LOGE("%{public}s: create layer cache failed", __func__));
32
33 int32_t ret = layer->Init();
34 if (ret != HDF_SUCCESS) {
35 delete layer;
36 layer = nullptr;
37 HDF_LOGE("%{public}s: layer cache init failed", __func__);
38 }
39
40 return layer;
41 }
42
LayerCache(uint32_t id)43 LayerCache::LayerCache(uint32_t id) : layerId_(id)
44 {
45 }
46
~LayerCache()47 LayerCache::~LayerCache()
48 {
49 }
50
Init()51 int32_t LayerCache::Init()
52 {
53 bufferCaches_.reset(new CacheManager<uint32_t, NativeBuffer>());
54 DISPLAY_CHK_RETURN(bufferCaches_ == nullptr, HDF_FAILURE,
55 HDF_LOGE("%{public}s: create buffer caches failed", __func__));
56
57 bufferCaches_->SetInitFunc(NativeBufferInit);
58 bufferCaches_->SetCleanUpFunc(NativeBufferCleanUp);
59 return HDF_SUCCESS;
60 }
61
SetBufferCacheMaxCount(uint32_t cacheCount)62 int32_t LayerCache::SetBufferCacheMaxCount(uint32_t cacheCount)
63 {
64 bool ret = bufferCaches_->SetCacheMaxCount(cacheCount);
65 DISPLAY_CHK_RETURN(ret == false, HDF_FAILURE, HDF_LOGE("%{public}s: failed", __func__));
66 return HDF_SUCCESS;
67 }
68
SetLayerBuffer(BufferHandle * & buffer,uint32_t seqNo,bool & needFreeBuffer,const std::vector<uint32_t> & deletingList,std::function<int32_t (const BufferHandle &)> realFunc)69 int32_t LayerCache::SetLayerBuffer(BufferHandle*& buffer, uint32_t seqNo, bool &needFreeBuffer,
70 const std::vector<uint32_t>& deletingList, std::function<int32_t (const BufferHandle&)> realFunc)
71 {
72 if (buffer != nullptr) {
73 HDF_LOGI("%{public}s, seqNo %{public}u, fd %{public}d, size %{public}d", __func__, seqNo, buffer->fd,
74 buffer->size);
75 }
76 for (auto num : deletingList) {
77 (void)bufferCaches_->EraseCache(num);
78 }
79
80 BufferHandle* handle = BufferCacheUtils::NativeBufferCache(bufferCaches_, buffer, seqNo, layerId_, needFreeBuffer);
81 DISPLAY_CHK_RETURN(handle == nullptr, HDF_FAILURE,
82 HDF_LOGE("%{public}s: call NativeBufferCache fail", __func__));
83 int32_t ret = realFunc(*handle);
84 if (ret != HDF_SUCCESS) {
85 bufferCaches_->EraseCache(seqNo);
86 buffer = nullptr;
87 HDF_LOGE("%{public}s: call realFunc fail", __func__);
88 }
89
90 return HDF_SUCCESS;
91 }
92
ResetLayerBuffer()93 int32_t LayerCache::ResetLayerBuffer()
94 {
95 HDF_LOGI("%{public}s", __func__);
96 return Init();
97 }
98
NativeBufferInit(std::unique_ptr<NativeBuffer> & buffer)99 void LayerCache::NativeBufferInit(std::unique_ptr<NativeBuffer>& buffer)
100 {
101 #ifdef DISPLAY_COMUNITY
102 if (buffer == nullptr) {
103 HDF_LOGW("NativeBufferInit buffer nullptr!");
104 return;
105 }
106 int32_t ret = Mmap(buffer);
107 if (ret != HDF_SUCCESS) {
108 HDF_LOGE("%{public}s: Mmap failed with %{public}d!", __func__, ret);
109 }
110 #endif
111 }
112
NativeBufferCleanUp(std::unique_ptr<NativeBuffer> & buffer)113 void LayerCache::NativeBufferCleanUp(std::unique_ptr<NativeBuffer>& buffer)
114 {
115 #ifdef DISPLAY_COMUNITY
116 if (buffer == nullptr) {
117 HDF_LOGW("NativeBufferCleanUp buffer nullptr!");
118 return;
119 }
120 int32_t ret = Unmap(buffer);
121 if (ret != HDF_SUCCESS) {
122 HDF_LOGE("%{public}s: Unmap failed with %{public}d!", __func__, ret);
123 }
124 #endif
125 }
126
GetMapperService()127 sptr<Buffer::V1_2::IMapper> LayerCache::GetMapperService()
128 {
129 static sptr<Buffer::V1_2::IMapper> mapperService;
130 if (mapperService == nullptr) {
131 mapperService = Buffer::V1_2::IMapper::Get(true);
132 }
133 return mapperService;
134 }
135
Mmap(std::unique_ptr<NativeBuffer> & buffer)136 int32_t LayerCache::Mmap(std::unique_ptr<NativeBuffer>& buffer)
137 {
138 auto mapperService = GetMapperService();
139 if (mapperService == nullptr) {
140 HDF_LOGE("GetMapperService failed!");
141 return HDF_FAILURE;
142 }
143
144 sptr<NativeBuffer> nativeBuffer(new NativeBuffer);
145 if (nativeBuffer == nullptr) {
146 HDF_LOGE("new NativeBuffer failed!");
147 return HDF_FAILURE;
148 }
149
150 nativeBuffer->SetBufferHandle(buffer->GetBufferHandle(), false);
151
152 return mapperService->Mmap(nativeBuffer);
153 }
154
Unmap(std::unique_ptr<NativeBuffer> & buffer)155 int32_t LayerCache::Unmap(std::unique_ptr<NativeBuffer>& buffer)
156 {
157 auto mapperService = GetMapperService();
158 if (mapperService == nullptr) {
159 HDF_LOGE("GetMapperService failed!");
160 return HDF_FAILURE;
161 }
162
163 sptr<NativeBuffer> nativeBuffer(new NativeBuffer);
164 if (nativeBuffer == nullptr) {
165 HDF_LOGE("new NativeBuffer failed!");
166 return HDF_FAILURE;
167 }
168
169 nativeBuffer->SetBufferHandle(buffer->GetBufferHandle(), false);
170
171 return mapperService->Unmap(nativeBuffer);
172 }
173
Dump() const174 void LayerCache::Dump() const
175 {
176 bufferCaches_->TravelCaches([this](const int32_t id, const NativeBuffer& buffer)->void {
177 auto info = buffer.Dump();
178 HDF_LOGE("layerId-%{public}d, buffer[%{public}d]: %{public}s", layerId_, id, info.c_str());
179 });
180 }
181 } // namespace Composer
182 } // namespace Display
183 } // namespace HDI
184 } // namespace OHOS
185