1 2 /* 3 * Copyright (C) 2017 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 #ifndef CAR_EVS_APP_RENDERTOPVIEW_H 19 #define CAR_EVS_APP_RENDERTOPVIEW_H 20 21 22 #include "RenderBase.h" 23 24 #include <android/hardware/automotive/evs/1.0/IEvsEnumerator.h> 25 #include "ConfigManager.h" 26 #include "VideoTex.h" 27 #include <math/mat4.h> 28 29 30 using namespace ::android::hardware::automotive::evs::V1_0; 31 32 33 /* 34 * Combines the views from all available cameras into one reprojected top down view. 35 */ 36 class RenderTopView: public RenderBase { 37 public: 38 RenderTopView(sp<IEvsEnumerator> enumerator, 39 const std::vector<ConfigManager::CameraInfo>& camList, 40 const ConfigManager& config); 41 42 virtual bool activate() override; 43 virtual void deactivate() override; 44 45 virtual bool drawFrame(const BufferDesc& tgtBuffer); 46 47 protected: 48 struct ActiveCamera { 49 const ConfigManager::CameraInfo& info; 50 std::unique_ptr<VideoTex> tex; 51 ActiveCameraActiveCamera52 ActiveCamera(const ConfigManager::CameraInfo& c) : info(c) {}; 53 }; 54 55 void renderCarTopView(); 56 void renderCameraOntoGroundPlane(const ActiveCamera& cam); 57 58 sp<IEvsEnumerator> mEnumerator; 59 const ConfigManager& mConfig; 60 std::vector<ActiveCamera> mActiveCameras; 61 62 struct { 63 std::unique_ptr<TexWrapper> checkerBoard; 64 std::unique_ptr<TexWrapper> carTopView; 65 } mTexAssets; 66 67 struct { 68 GLuint simpleTexture; 69 GLuint projectedTexture; 70 } mPgmAssets; 71 72 android::mat4 orthoMatrix; 73 }; 74 75 76 #endif //CAR_EVS_APP_RENDERTOPVIEW_H 77