1 /* 2 * Copyright (C) 2019 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 ANDROID_AUTOMOTIVE_EVS_V1_0_DISPLAYPROXY_H 18 #define ANDROID_AUTOMOTIVE_EVS_V1_0_DISPLAYPROXY_H 19 20 #include <android/hardware/automotive/evs/1.0/types.h> 21 #include <android/hardware/automotive/evs/1.0/IEvsDisplay.h> 22 23 using namespace ::android::hardware::automotive::evs::V1_0; 24 using ::android::hardware::Return; 25 using ::android::hardware::Void; 26 using ::android::hardware::hidl_handle; 27 28 namespace android { 29 namespace automotive { 30 namespace evs { 31 namespace V1_0 { 32 namespace implementation { 33 34 // TODO: This class has been defined to wrap the IEvsDisplay object the driver 35 // returns because of b/129284474 and represents an EVS display to the client 36 // application. With a proper bug fix, we may remove this class and update the 37 // manager directly to use the IEvsDisplay object the driver provides. 38 class HalDisplay : public IEvsDisplay { 39 public: 40 explicit HalDisplay(sp<IEvsDisplay>& display); 41 virtual ~HalDisplay() override; 42 43 inline void shutdown(); 44 sp<IEvsDisplay> getHwDisplay(); 45 46 // Methods from ::android::hardware::automotive::evs::V1_0::IEvsDisplay follow. 47 Return<void> getDisplayInfo(getDisplayInfo_cb _hidl_cb) override; 48 Return<EvsResult> setDisplayState(DisplayState state) override; 49 Return<DisplayState> getDisplayState() override; 50 Return<void> getTargetBuffer(getTargetBuffer_cb _hidl_cb) override; 51 Return<EvsResult> returnTargetBufferForDisplay(const BufferDesc& buffer) override; 52 53 private: 54 sp<IEvsDisplay> mHwDisplay; // The low level display interface that backs this proxy 55 }; 56 57 } // namespace implementation 58 } // namespace V1_0 59 } // namespace evs 60 } // namespace automotive 61 } // namespace android 62 63 #endif // ANDROID_AUTOMOTIVE_EVS_V1_0_DISPLAYPROXY_H 64