1 /* 2 * Copyright (C) 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef CPP_EVS_MANAGER_AIDL_INCLUDE_HALDISPLAY_H 18 #define CPP_EVS_MANAGER_AIDL_INCLUDE_HALDISPLAY_H 19 20 #include <aidl/android/hardware/automotive/evs/BnEvsDisplay.h> 21 #include <aidl/android/hardware/automotive/evs/BufferDesc.h> 22 #include <aidl/android/hardware/automotive/evs/DisplayDesc.h> 23 #include <aidl/android/hardware/automotive/evs/DisplayState.h> 24 25 #include <limits> 26 27 namespace aidl::android::automotive::evs::implementation { 28 29 inline constexpr int32_t kInvalidDisplayId = std::numeric_limits<int32_t>::min(); 30 31 namespace aidlevs = ::aidl::android::hardware::automotive::evs; 32 33 class HalDisplay : public ::aidl::android::hardware::automotive::evs::BnEvsDisplay { 34 public: 35 // Methods from ::aidl::android::hardware::automotive::evs::IEvsDisplay follow. 36 ::ndk::ScopedAStatus getDisplayInfo(aidlevs::DisplayDesc* _aidl_return) override; 37 ::ndk::ScopedAStatus getDisplayState(aidlevs::DisplayState* _aidl_return) override; 38 ::ndk::ScopedAStatus getTargetBuffer(aidlevs::BufferDesc* _aidl_return) override; 39 ::ndk::ScopedAStatus returnTargetBufferForDisplay(const aidlevs::BufferDesc& buffer) override; 40 ::ndk::ScopedAStatus setDisplayState(aidlevs::DisplayState state) override; 41 42 explicit HalDisplay(std::shared_ptr<aidlevs::IEvsDisplay> display, 43 int32_t port = kInvalidDisplayId); 44 virtual ~HalDisplay(); 45 46 inline void shutdown(); 47 std::shared_ptr<aidlevs::IEvsDisplay> getHwDisplay(); 48 49 // Returns a string showing the current status 50 std::string toString(const char* indent = ""); 51 52 private: 53 // The low level display interface that backs this proxy 54 std::shared_ptr<aidlevs::IEvsDisplay> mHwDisplay; 55 int32_t mId; // Display identifier 56 }; 57 58 } // namespace aidl::android::automotive::evs::implementation 59 60 #endif // CPP_EVS_MANAGER_AIDL_INCLUDE_HALDISPLAY_H 61