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82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
2 years ago
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/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __CAMERA_ENGINE_H__
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#define __CAMERA_ENGINE_H__
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#include <android/native_window.h>
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#include <android_native_app_glue.h>
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#include <functional>
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#include <thread>
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#include "camera_manager.h"
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/**
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* basic CameraAppEngine
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*/
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class CameraEngine {
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public:
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explicit CameraEngine(android_app* app);
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~CameraEngine();
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// Interfaces to android application framework
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struct android_app* AndroidApp(void) const;
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void OnAppInitWindow(void);
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void DrawFrame(void);
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void OnAppConfigChange(void);
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void OnAppTermWindow(void);
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// Native Window handlers
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int32_t GetSavedNativeWinWidth(void);
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int32_t GetSavedNativeWinHeight(void);
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int32_t GetSavedNativeWinFormat(void);
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void SaveNativeWinRes(int32_t w, int32_t h, int32_t format);
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// UI handlers
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void RequestCameraPermission();
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void OnCameraPermission(jboolean granted);
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void EnableUI(void);
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void OnTakePhoto(void);
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void OnCameraParameterChanged(int32_t code, int64_t val);
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// Manage NDKCamera Object
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void CreateCamera(void);
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void DeleteCamera(void);
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private:
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void OnPhotoTaken(const char* fileName);
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int GetDisplayRotation(void);
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struct android_app* app_;
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ImageFormat savedNativeWinRes_;
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bool cameraGranted_;
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int rotation_;
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volatile bool cameraReady_;
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NDKCamera* camera_;
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ImageReader* yuvReader_;
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ImageReader* jpgReader_;
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};
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/**
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* retrieve global singleton CameraEngine instance
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* @return the only instance of CameraEngine in the app
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*/
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CameraEngine* GetAppEngine(void);
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#endif // __CAMERA_ENGINE_H__
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