1 /*
2 * Copyright (c) 2021-2022 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 "snapshot_controller.h"
17
18 #include <hitrace_meter.h>
19
20 #include "surface_capture_future.h"
21 #include "surface_draw.h"
22 #include "window_manager_hilog.h"
23 #include "wm_common.h"
24
25 namespace OHOS {
26 namespace Rosen {
27 namespace {
28 constexpr HiviewDFX::HiLogLabel LABEL = {LOG_CORE, HILOG_DOMAIN_DISPLAY, "SnapshotController"};
29 }
30
GetSnapshot(const sptr<IRemoteObject> & token,Snapshot & snapshot)31 int32_t SnapshotController::GetSnapshot(const sptr<IRemoteObject> &token, Snapshot& snapshot)
32 {
33 HITRACE_METER_FMT(HITRACE_TAG_WINDOW_MANAGER, "wms:GetSnapshot");
34 if (token == nullptr) {
35 WLOGFE("Get snapshot failed, because token is null.");
36 return static_cast<int32_t>(WMError::WM_ERROR_NULLPTR);
37 }
38 if (handler_ == nullptr || windowRoot_ == nullptr) {
39 WLOGFE("Get snapshot failed, because handler/root is null.");
40 return static_cast<int32_t>(WMError::WM_ERROR_NULLPTR);
41 }
42
43 performReport_->start();
44 // get snapshot cache in wms main handler
45 std::shared_ptr<Media::PixelMap> pixelMap;
46 std::shared_ptr<RSSurfaceNode> surfaceNode;
47 auto task = [this, &pixelMap, &surfaceNode, token] () {
48 auto targetNode = windowRoot_->GetWindowNodeByAbilityToken(token);
49 if (targetNode != nullptr) {
50 pixelMap = targetNode->GetSnapshot();
51 targetNode->SetSnapshot(nullptr); // reset window snapshot after use
52 surfaceNode = targetNode->surfaceNode_;
53 }
54 };
55 handler_->PostSyncTask(task, AppExecFwk::EventQueue::Priority::IMMEDIATE);
56
57 // do snapshot if no cache
58 if (pixelMap == nullptr) {
59 bool snapSucc = SurfaceDraw::GetSurfaceSnapshot(surfaceNode, pixelMap, 300); // snapshot time out 300ms
60 if (!snapSucc) {
61 return static_cast<int32_t>(WMError::WM_ERROR_NULLPTR);
62 }
63 }
64
65 // success to snapshot
66 snapshot.SetPixelMap(pixelMap);
67 performReport_->end();
68 return static_cast<int32_t>(WM_OK);
69 }
70 } // namespace Rosen
71 } // namespace OHOS