1 /* 2 * Copyright (C) 2016 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_HARDWARE_AUTOMOTIVE_EVS_V1_0_EVSDISPLAY_H 18 #define ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_0_EVSDISPLAY_H 19 20 #include <android/hardware/automotive/evs/1.0/IEvsDisplay.h> 21 #include <ui/GraphicBuffer.h> 22 23 namespace android { 24 namespace hardware { 25 namespace automotive { 26 namespace evs { 27 namespace V1_0 { 28 namespace implementation { 29 30 31 class EvsDisplay : public IEvsDisplay { 32 public: 33 // Methods from ::android::hardware::automotive::evs::V1_0::IEvsDisplay follow. 34 Return<void> getDisplayInfo(getDisplayInfo_cb _hidl_cb) override; 35 Return<EvsResult> setDisplayState(DisplayState state) override; 36 Return<DisplayState> getDisplayState() override; 37 Return<void> getTargetBuffer(getTargetBuffer_cb _hidl_cb) override; 38 Return<EvsResult> returnTargetBufferForDisplay(const BufferDesc& buffer) override; 39 40 // Implementation details 41 EvsDisplay(); 42 virtual ~EvsDisplay() override; 43 44 void forceShutdown(); // This gets called if another caller "steals" ownership of the display 45 46 private: 47 DisplayDesc mInfo = {}; 48 BufferDesc mBuffer = {}; // A graphics buffer into which we'll store images 49 50 bool mFrameBusy = false; // A flag telling us our buffer is in use 51 DisplayState mRequestedState = DisplayState::NOT_VISIBLE; 52 53 std::mutex mAccessLock; 54 }; 55 56 } // namespace implementation 57 } // namespace V1_0 58 } // namespace evs 59 } // namespace automotive 60 } // namespace hardware 61 } // namespace android 62 63 #endif // ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_0_EVSDISPLAY_H 64
