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156 lines
4.8 KiB
156 lines
4.8 KiB
/*
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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 HW_EMULATOR_CAMERA_EMULATED_FAKE_CAMERA_ROTATE_DEVICE_H
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#define HW_EMULATOR_CAMERA_EMULATED_FAKE_CAMERA_ROTATE_DEVICE_H
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/*
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* Contains declaration of a class EmulatedFakeRotatingCameraDevice that encapsulates
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* a fake camera device.
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*/
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#include "Converters.h"
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#include "EmulatedCameraDevice.h"
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#include <EGL/egl.h>
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#include <GLES/gl.h>
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#include <GLES/glext.h>
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namespace android {
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/* Encapsulates a fake camera device.
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* Fake camera device emulates a camera device by providing frames containing
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* an image rendered by opengl, that takes rotating input from host
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*/
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class EmulatedFakeRotatingCameraDevice {
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public:
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explicit EmulatedFakeRotatingCameraDevice();
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/* Destructs EmulatedFakeRotatingCameraDevice instance. */
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~EmulatedFakeRotatingCameraDevice();
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/***************************************************************************
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* Emulated camera device abstract interface implementation.
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* See declarations of these methods in EmulatedCameraDevice class for
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* information on each of these methods.
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**************************************************************************/
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public:
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/* Connects to the camera device.
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* Since there is no real device to connect to, this method does nothing,
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* but changes the state.
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*/
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status_t connectDevice();
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/* Disconnects from the camera device.
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* Since there is no real device to disconnect from, this method does
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* nothing, but changes the state.
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*/
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status_t disconnectDevice();
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/* Starts the camera device. */
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status_t startDevice(int width, int height, uint32_t pix_fmt);
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/* Stops the camera device. */
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status_t stopDevice();
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/* Implementation of the frame production routine. */
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bool produceFrame(void* buffer, int64_t* timestamp);
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/****************************************************************************
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* Fake camera device private API
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***************************************************************************/
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private:
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enum EmulatedCameraDeviceState {
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ECDS_INVALID,
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/* Object has been constructed. */
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ECDS_CONSTRUCTED,
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/* Object has been initialized. */
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ECDS_INITIALIZED,
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/* Object has been connected to the physical device. */
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ECDS_CONNECTED,
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/* Camera device has been started. */
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ECDS_STARTED,
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};
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/* Object state. */
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EmulatedCameraDeviceState mState;
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inline bool isInitialized() const {
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return mState != ECDS_CONSTRUCTED;
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}
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inline bool isConnected() const {
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/* Instance is connected when its status is either"connected", or
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* "started". */
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return mState == ECDS_CONNECTED || mState == ECDS_STARTED;
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}
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inline bool isStarted() const {
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return mState == ECDS_STARTED;
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}
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Mutex mObjectLock;
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/* Frame width */
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int mFrameWidth;
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/* Frame height */
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int mFrameHeight;
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uint32_t mPixelFormat;
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private:
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void fillBuffer(void* buffer);
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void render(int width, int height);
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int init_gl_surface(int width, int height);
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void get_eye_x_y_z(float* x, float* y, float*z);
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void get_yawing(float* x, float* y, float*z);
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void read_rotation_vector(double *yaw, double* pitch, double* roll);
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void read_sensor();
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void init_sensor();
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void free_gl_surface(void);
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void update_scene(float width, float height);
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void create_texture_dotx(int width, int height);
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bool mOpenglReady = false;
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EGLDisplay mEglDisplay;
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EGLSurface mEglSurface;
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EGLContext mEglContext;
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GLuint mTexture;
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uint8_t* mPixelBuf;// = new uint8_t[width * height * kGlBytesPerPixel];;
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int mSensorPipe = -1;
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enum SENSOR_VALUE_TYPE {
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SENSOR_VALUE_ACCEL_X=0,
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SENSOR_VALUE_ACCEL_Y=1,
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SENSOR_VALUE_ACCEL_Z=2,
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SENSOR_VALUE_MAGNETIC_X=3,
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SENSOR_VALUE_MAGNETIC_Y=4,
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SENSOR_VALUE_MAGNETIC_Z=5,
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SENSOR_VALUE_ROTATION_X=6,
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SENSOR_VALUE_ROTATION_Y=7,
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SENSOR_VALUE_ROTATION_Z=8,
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};
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float mSensorValues[9] = {0};
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};
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}; /* namespace android */
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#endif /* HW_EMULATOR_CAMERA_EMULATED_FAKE_CAMERA_ROTATE_DEVICE_H */
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