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_1_EVSGLDISPLAY_H 18 #define ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_1_EVSGLDISPLAY_H 19 20 #include "GlWrapper.h" 21 22 #include <android/frameworks/automotive/display/1.0/IAutomotiveDisplayProxyService.h> 23 #include <android/hardware/automotive/evs/1.1/IEvsDisplay.h> 24 #include <ui/GraphicBuffer.h> 25 26 namespace android { 27 namespace hardware { 28 namespace automotive { 29 namespace evs { 30 namespace V1_1 { 31 namespace implementation { 32 33 using ::android::hardware::automotive::evs::V1_0::DisplayDesc; 34 using ::android::hardware::automotive::evs::V1_0::DisplayState; 35 using ::android::hardware::automotive::evs::V1_0::EvsResult; 36 using ::android::hardware::automotive::evs::V1_1::IEvsDisplay; 37 using EvsResult = ::android::hardware::automotive::evs::V1_0::EvsResult; 38 using BufferDesc_1_0 = ::android::hardware::automotive::evs::V1_0::BufferDesc; 39 using EvsDisplayState = ::android::hardware::automotive::evs::V1_0::DisplayState; 40 using android::frameworks::automotive::display::V1_0::IAutomotiveDisplayProxyService; 41 42 class EvsGlDisplay : public IEvsDisplay { 43 public: 44 // Methods from ::android::hardware::automotive::evs::V1_0::IEvsDisplay follow. 45 Return<void> getDisplayInfo(getDisplayInfo_cb _hidl_cb) override; 46 Return<EvsResult> setDisplayState(EvsDisplayState state) override; 47 Return<EvsDisplayState> getDisplayState() override; 48 Return<void> getTargetBuffer(getTargetBuffer_cb _hidl_cb) override; 49 Return<EvsResult> returnTargetBufferForDisplay(const BufferDesc_1_0& buffer) override; 50 51 // Methods from ::android::hardware::automotive::evs::V1_1::IEvsDisplay follow. 52 Return<void> getDisplayInfo_1_1(getDisplayInfo_1_1_cb _info_cb) override; 53 54 // Implementation details 55 EvsGlDisplay(sp<IAutomotiveDisplayProxyService> pWindowService, uint64_t displayId); 56 virtual ~EvsGlDisplay() override; 57 58 void forceShutdown(); // This gets called if another caller "steals" ownership of the display 59 60 private: 61 DisplayDesc mInfo = {}; 62 BufferDesc_1_0 mBuffer = {}; // A graphics buffer into which we'll store images 63 64 bool mFrameBusy = false; // A flag telling us our buffer is in use 65 EvsDisplayState mRequestedState = EvsDisplayState::NOT_VISIBLE; 66 67 GlWrapper mGlWrapper; 68 69 std::mutex mAccessLock; 70 71 sp<IAutomotiveDisplayProxyService> mDisplayProxy; 72 uint64_t mDisplayId; 73 }; 74 75 } // namespace implementation 76 } // namespace V1_1 77 } // namespace evs 78 } // namespace automotive 79 } // namespace hardware 80 } // namespace android 81 82 #endif // ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_0_EVSGLDISPLAY_H 83