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 "fingersense_wrapper.h"
17
18 #include <dlfcn.h>
19
20 #include "define_multimodal.h"
21 #include "pointer_event.h"
22
23 #undef MMI_LOG_DOMAIN
24 #define MMI_LOG_DOMAIN MMI_LOG_SERVER
25 #undef MMI_LOG_TAG
26 #define MMI_LOG_TAG "FingersenseWrapper"
27
28 namespace OHOS {
29 namespace MMI {
30 namespace {
31 const char* FINGERSENSE_WRAPPER_PATH { "libfingersense_wrapper.z.so" };
32 constexpr int32_t MAX_TOUCH_INFO_SIZE = 10;
33 } // namespace
34
FingersenseWrapper()35 FingersenseWrapper::FingersenseWrapper() {}
~FingersenseWrapper()36 FingersenseWrapper::~FingersenseWrapper()
37 {
38 CALL_DEBUG_ENTER;
39 CHKPV(fingerSenseWrapperHandle_);
40 MMI_HILOGD("Start release fingersense wrapper");
41 dlclose(fingerSenseWrapperHandle_);
42 fingerSenseWrapperHandle_ = nullptr;
43 touchInfos_.clear();
44 }
45
InitFingerSenseWrapper()46 void FingersenseWrapper::InitFingerSenseWrapper()
47 {
48 CALL_DEBUG_ENTER;
49 fingerSenseWrapperHandle_ = dlopen(FINGERSENSE_WRAPPER_PATH, RTLD_NOW);
50 if (fingerSenseWrapperHandle_ == nullptr) {
51 MMI_HILOGE("libfingersense_wrapper.z.so was not loaded, error:%{public}s", dlerror());
52 return;
53 }
54
55 setCurrentToolType_ = (SET_CURRENT_TOOL_TYPE)dlsym(fingerSenseWrapperHandle_, "SetCurrentToolType");
56 notifyTouchUp_ = (NOTIFY_TOUCH_UP)dlsym(fingerSenseWrapperHandle_, "NotifyTouchUp");
57 enableFingersense_ = (ENABLE_FINGERSENSE)dlsym(fingerSenseWrapperHandle_, "EnableFingersense");
58 disableFingerSense_ = (DISABLE_FINGERSENSE)dlsym(fingerSenseWrapperHandle_, "DisableFingerSense");
59 if (setCurrentToolType_ == nullptr || notifyTouchUp_ == nullptr || enableFingersense_ == nullptr ||
60 disableFingerSense_ == nullptr) {
61 MMI_HILOGE("Fingersense wrapper symbol failed, error:%{public}s", dlerror());
62 dlclose(fingerSenseWrapperHandle_);
63 return;
64 }
65
66 sendFingerSenseDisplayMode_ = (SEND_FINGERSENSE_DISPLAYMODE)dlsym(fingerSenseWrapperHandle_, "UpdateDisplayMode");
67 if (sendFingerSenseDisplayMode_ == nullptr) {
68 MMI_HILOGE("Send fingersense display mode symbol failed, error:%{public}s", dlerror());
69 dlclose(fingerSenseWrapperHandle_);
70 return;
71 }
72 MMI_HILOGD("Fingersense wrapper init success");
73 }
74
SaveTouchInfo(float pointX,float pointY,int32_t toolType)75 void FingersenseWrapper::SaveTouchInfo(float pointX, float pointY, int32_t toolType)
76 {
77 std::lock_guard<std::mutex> guard(lock_);
78 while (touchInfos_.size() >= MAX_TOUCH_INFO_SIZE) {
79 touchInfos_.erase(touchInfos_.begin());
80 }
81 TouchInfo touchInfo;
82 touchInfo.x = pointX;
83 touchInfo.y = pointY;
84 touchInfo.touch_type = toolType;
85 touchInfos_.push_back(touchInfo);
86 }
87
IsEqual(float a,float b,float epsilon)88 bool FingersenseWrapper::IsEqual(float a, float b, float epsilon)
89 {
90 return fabs(a - b) < epsilon;
91 }
92
CheckKnuckleEvent(float pointX,float pointY,bool & isKnuckleType)93 int32_t FingersenseWrapper::CheckKnuckleEvent(float pointX, float pointY, bool &isKnuckleType)
94 {
95 std::lock_guard<std::mutex> guard(lock_);
96 for (size_t i = 0; i < touchInfos_.size(); i++) {
97 TouchInfo touchInfo = touchInfos_[i];
98 if (IsEqual(touchInfo.x, pointX) && IsEqual(touchInfo.y, pointY)) {
99 isKnuckleType = touchInfo.touch_type == MMI::PointerEvent::TOOL_TYPE_KNUCKLE;
100 return RET_OK;
101 }
102 }
103 return RET_ERR;
104 }
105 } // namespace MMI
106 } // namespace OHOS