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 for (auto num : deletingList) {
73 (void)bufferCaches_->EraseCache(num);
74 }
75
76 BufferHandle* handle = BufferCacheUtils::NativeBufferCache(bufferCaches_, buffer, seqNo, layerId_, needFreeBuffer);
77 DISPLAY_CHK_RETURN(handle == nullptr, HDF_FAILURE,
78 HDF_LOGE("%{public}s: call NativeBufferCache fail", __func__));
79 int32_t ret = realFunc(*handle);
80 if (ret != HDF_SUCCESS) {
81 bufferCaches_->EraseCache(seqNo);
82 buffer = nullptr;
83 HDF_LOGE("%{public}s: call realFunc fail", __func__);
84 }
85
86 return HDF_SUCCESS;
87 }
88
ResetLayerBuffer()89 int32_t LayerCache::ResetLayerBuffer()
90 {
91 HDF_LOGI("%{public}s", __func__);
92 return Init();
93 }
94
NativeBufferInit(std::unique_ptr<NativeBuffer> & buffer)95 void LayerCache::NativeBufferInit(std::unique_ptr<NativeBuffer>& buffer)
96 {
97 #ifdef DISPLAY_COMUNITY
98 if (buffer == nullptr) {
99 HDF_LOGW("NativeBufferInit buffer nullptr!");
100 return;
101 }
102 int32_t ret = Mmap(buffer);
103 if (ret != HDF_SUCCESS) {
104 HDF_LOGE("%{public}s: Mmap failed with %{public}d!", __func__, ret);
105 }
106 #endif
107 }
108
NativeBufferCleanUp(std::unique_ptr<NativeBuffer> & buffer)109 void LayerCache::NativeBufferCleanUp(std::unique_ptr<NativeBuffer>& buffer)
110 {
111 #ifdef DISPLAY_COMUNITY
112 if (buffer == nullptr) {
113 HDF_LOGW("NativeBufferCleanUp buffer nullptr!");
114 return;
115 }
116 int32_t ret = Unmap(buffer);
117 if (ret != HDF_SUCCESS) {
118 HDF_LOGE("%{public}s: Unmap failed with %{public}d!", __func__, ret);
119 }
120 #endif
121 }
122
GetMapperService()123 sptr<Buffer::V1_2::IMapper> LayerCache::GetMapperService()
124 {
125 static sptr<Buffer::V1_2::IMapper> mapperService;
126 if (mapperService == nullptr) {
127 mapperService = Buffer::V1_2::IMapper::Get(true);
128 }
129 return mapperService;
130 }
131
Mmap(std::unique_ptr<NativeBuffer> & buffer)132 int32_t LayerCache::Mmap(std::unique_ptr<NativeBuffer>& buffer)
133 {
134 auto mapperService = GetMapperService();
135 if (mapperService == nullptr) {
136 HDF_LOGE("GetMapperService failed!");
137 return HDF_FAILURE;
138 }
139
140 sptr<NativeBuffer> nativeBuffer(new NativeBuffer);
141 if (nativeBuffer == nullptr) {
142 HDF_LOGE("new NativeBuffer failed!");
143 return HDF_FAILURE;
144 }
145
146 nativeBuffer->SetBufferHandle(buffer->GetBufferHandle(), false);
147
148 return mapperService->Mmap(nativeBuffer);
149 }
150
Unmap(std::unique_ptr<NativeBuffer> & buffer)151 int32_t LayerCache::Unmap(std::unique_ptr<NativeBuffer>& buffer)
152 {
153 auto mapperService = GetMapperService();
154 if (mapperService == nullptr) {
155 HDF_LOGE("GetMapperService failed!");
156 return HDF_FAILURE;
157 }
158
159 sptr<NativeBuffer> nativeBuffer(new NativeBuffer);
160 if (nativeBuffer == nullptr) {
161 HDF_LOGE("new NativeBuffer failed!");
162 return HDF_FAILURE;
163 }
164
165 nativeBuffer->SetBufferHandle(buffer->GetBufferHandle(), false);
166
167 return mapperService->Unmap(nativeBuffer);
168 }
169
Dump() const170 void LayerCache::Dump() const
171 {
172 bufferCaches_->TravelCaches([this](const int32_t id, const NativeBuffer& buffer)->void {
173 auto info = buffer.Dump();
174 HDF_LOGE("layerId-%{public}d, buffer[%{public}d]: %{public}s", layerId_, id, info.c_str());
175 });
176 }
177 } // namespace Composer
178 } // namespace Display
179 } // namespace HDI
180 } // namespace OHOS
181