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 <android/hardware/automotive/evs/1.1/IEvsDisplay.h> 21 #include <android/frameworks/automotive/display/1.0/IAutomotiveDisplayProxyService.h> 22 #include <ui/GraphicBuffer.h> 23 24 #include "GlWrapper.h" 25 26 using ::android::hardware::automotive::evs::V1_0::EvsResult; 27 using ::android::hardware::automotive::evs::V1_0::DisplayDesc; 28 using ::android::hardware::automotive::evs::V1_0::DisplayState; 29 using ::android::hardware::automotive::evs::V1_1::IEvsDisplay; 30 using EvsResult = ::android::hardware::automotive::evs::V1_0::EvsResult; 31 using BufferDesc_1_0 = ::android::hardware::automotive::evs::V1_0::BufferDesc; 32 using EvsDisplayState = ::android::hardware::automotive::evs::V1_0::DisplayState; 33 using android::frameworks::automotive::display::V1_0::IAutomotiveDisplayProxyService; 34 35 namespace android { 36 namespace hardware { 37 namespace automotive { 38 namespace evs { 39 namespace V1_1 { 40 namespace implementation { 41 42 43 class EvsGlDisplay : public IEvsDisplay { 44 public: 45 // Methods from ::android::hardware::automotive::evs::V1_0::IEvsDisplay follow. 46 Return<void> getDisplayInfo(getDisplayInfo_cb _hidl_cb) override; 47 Return<EvsResult> setDisplayState(EvsDisplayState state) override; 48 Return<EvsDisplayState> getDisplayState() override; 49 Return<void> getTargetBuffer(getTargetBuffer_cb _hidl_cb) override; 50 Return<EvsResult> returnTargetBufferForDisplay(const BufferDesc_1_0& buffer) override; 51 52 // Methods from ::android::hardware::automotive::evs::V1_1::IEvsDisplay follow. 53 Return<void> getDisplayInfo_1_1(getDisplayInfo_1_1_cb _info_cb) override; 54 55 // Implementation details 56 EvsGlDisplay(sp<IAutomotiveDisplayProxyService> pWindowService, uint64_t displayId); 57 virtual ~EvsGlDisplay() override; 58 59 void forceShutdown(); // This gets called if another caller "steals" ownership of the display 60 61 private: 62 DisplayDesc mInfo = {}; 63 BufferDesc_1_0 mBuffer = {}; // A graphics buffer into which we'll store images 64 65 bool mFrameBusy = false; // A flag telling us our buffer is in use 66 EvsDisplayState mRequestedState = EvsDisplayState::NOT_VISIBLE; 67 68 GlWrapper mGlWrapper; 69 70 std::mutex mAccessLock; 71 72 sp<IAutomotiveDisplayProxyService> mDisplayProxy; 73 uint64_t mDisplayId; 74 }; 75 76 } // namespace implementation 77 } // namespace V1_0 78 } // namespace evs 79 } // namespace automotive 80 } // namespace hardware 81 } // namespace android 82 83 #endif // ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_0_EVSGLDISPLAY_H 84