1 /* 2 * Copyright (c) 2021 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 #ifndef HDI_SESSION_H 17 #define HDI_SESSION_H 18 #include <unordered_map> 19 #include <vector> 20 #include <memory> 21 #include "display_device.h" 22 #include "hdi_device_interface.h" 23 #include "hdi_display.h" 24 25 namespace OHOS { 26 namespace HDI { 27 namespace DISPLAY { 28 class HdiSession { 29 public: 30 void Init(); 31 static HdiSession &GetInstance(); 32 33 template<typename... Args> CallDisplayFunction(uint32_t devId,int32_t (HdiDisplay::* member)(Args...),Args...args)34 int32_t CallDisplayFunction(uint32_t devId, int32_t (HdiDisplay::*member)(Args...), Args... args) 35 { 36 DISPLAY_DEBUGLOG("device Id : %{public}d", devId); 37 DISPLAY_CHK_RETURN((devId == INVALIDE_DISPLAY_ID), DISPLAY_FAILURE, DISPLAY_LOGE("invalide device id")); 38 auto iter = mHdiDisplays.find(devId); 39 DISPLAY_CHK_RETURN((iter == mHdiDisplays.end()), DISPLAY_FAILURE, 40 DISPLAY_LOGE("can not find display %{public}d", devId)); 41 auto display = iter->second.get(); 42 return (display->*member)(std::forward<Args>(args)...); 43 } 44 45 template<typename... Args> CallLayerFunction(uint32_t devId,uint32_t layerId,int32_t (HdiLayer::* member)(Args...),Args...args)46 int32_t CallLayerFunction(uint32_t devId, uint32_t layerId, int32_t (HdiLayer::*member)(Args...), Args... args) 47 { 48 DISPLAY_DEBUGLOG("device Id : %{public}d", devId); 49 DISPLAY_CHK_RETURN((devId == INVALIDE_DISPLAY_ID), DISPLAY_FAILURE, DISPLAY_LOGE("invalide device id")); 50 auto iter = mHdiDisplays.find(devId); 51 DISPLAY_CHK_RETURN((iter == mHdiDisplays.end()), DISPLAY_FAILURE, 52 DISPLAY_LOGE("can not find display %{public}d", devId)); 53 auto display = iter->second.get(); 54 auto layer = display->GetHdiLayer(layerId); 55 DISPLAY_CHK_RETURN((layer == nullptr), DISPLAY_FAILURE, 56 DISPLAY_LOGE("can not find the layer %{public}d", layerId)); 57 return (layer->*member)(std::forward<Args>(args)...); 58 } 59 60 int32_t RegHotPlugCallback(HotPlugCallback callback, void *data); 61 void DoHotPlugCallback(uint32_t devId, bool connect); 62 void HandleHotplug(bool plugIn); 63 64 private: 65 std::unordered_map<uint32_t, std::shared_ptr<HdiDisplay>> mHdiDisplays; 66 std::vector<std::shared_ptr<HdiDeviceInterface>> mHdiDevices; 67 std::unordered_map<HotPlugCallback, void *> mHotPlugCallBacks; 68 }; 69 } // namespace OHOS 70 } // namespace HDI 71 } // namespace DISPLAY 72 73 #endif // HDI_SESSION_H