| Tomasz Wiszkowski | 5f73a25 | 2017-09-22 11:29:30 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 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 HW_EMULATOR_CAMERA_EMULATED_QEMU_CAMERA_DEVICE_H |
| 18 | #define HW_EMULATOR_CAMERA_EMULATED_QEMU_CAMERA_DEVICE_H |
| 19 | |
| 20 | /* |
| 21 | * Contains declaration of a class EmulatedQemuCameraDevice that encapsulates |
| 22 | * an emulated camera device connected to the host. |
| 23 | */ |
| 24 | |
| 25 | #include "EmulatedCameraDevice.h" |
| 26 | #include "QemuClient.h" |
| 27 | |
| 28 | namespace android { |
| 29 | |
| 30 | class EmulatedQemuCamera; |
| 31 | |
| 32 | /* Encapsulates an emulated camera device connected to the host. |
| 33 | */ |
| 34 | class EmulatedQemuCameraDevice : public EmulatedCameraDevice { |
| 35 | public: |
| 36 | /* Constructs EmulatedQemuCameraDevice instance. */ |
| 37 | explicit EmulatedQemuCameraDevice(EmulatedQemuCamera* camera_hal); |
| 38 | |
| 39 | /* Destructs EmulatedQemuCameraDevice instance. */ |
| 40 | ~EmulatedQemuCameraDevice(); |
| 41 | |
| 42 | /*************************************************************************** |
| 43 | * Public API |
| 44 | **************************************************************************/ |
| 45 | |
| 46 | public: |
| 47 | /* Initializes EmulatedQemuCameraDevice instance. |
| 48 | * Param: |
| 49 | * device_name - Name of the camera device connected to the host. The name |
| 50 | * that is used here must have been reported by the 'factory' camera |
| 51 | * service when it listed camera devices connected to the host. |
| 52 | * Return: |
| 53 | * NO_ERROR on success, or an appropriate error status. |
| 54 | */ |
| 55 | status_t Initialize(const char* device_name); |
| 56 | |
| 57 | /*************************************************************************** |
| 58 | * Emulated camera device abstract interface implementation. |
| 59 | * See declarations of these methods in EmulatedCameraDevice class for |
| 60 | * information on each of these methods. |
| 61 | **************************************************************************/ |
| 62 | |
| 63 | public: |
| 64 | /* Connects to the camera device. */ |
| 65 | status_t connectDevice(); |
| 66 | |
| 67 | /* Disconnects from the camera device. */ |
| 68 | status_t disconnectDevice(); |
| 69 | |
| 70 | /* Starts capturing frames from the camera device. */ |
| 71 | status_t startDevice(int width, int height, uint32_t pix_fmt, int fps); |
| 72 | |
| 73 | /* Stops capturing frames from the camera device. */ |
| 74 | status_t stopDevice(); |
| 75 | |
| 76 | /*************************************************************************** |
| 77 | * EmulatedCameraDevice virtual overrides |
| 78 | * See declarations of these methods in EmulatedCameraDevice class for |
| 79 | * information on each of these methods. |
| 80 | **************************************************************************/ |
| 81 | |
| 82 | public: |
| 83 | /* Gets current preview fame into provided buffer. |
| 84 | * We override this method in order to provide preview frames cached in this |
| 85 | * object. |
| 86 | */ |
| 87 | status_t getCurrentPreviewFrame(void* buffer); |
| 88 | |
| 89 | /*************************************************************************** |
| 90 | * Worker thread management overrides. |
| 91 | * See declarations of these methods in EmulatedCameraDevice class for |
| 92 | * information on each of these methods. |
| 93 | **************************************************************************/ |
| 94 | |
| 95 | protected: |
| 96 | /* Implementation of the worker thread routine. */ |
| 97 | bool inWorkerThread(); |
| 98 | |
| 99 | /*************************************************************************** |
| 100 | * Qemu camera device data members |
| 101 | **************************************************************************/ |
| 102 | |
| 103 | private: |
| 104 | /* Qemu client that is used to communicate with the 'emulated camera' |
| 105 | * service, created for this instance in the emulator. */ |
| 106 | CameraQemuClient mQemuClient; |
| 107 | |
| 108 | /* Name of the camera device connected to the host. */ |
| 109 | String8 mDeviceName; |
| 110 | |
| 111 | /* Current preview framebuffer. */ |
| 112 | uint32_t* mPreviewFrame; |
| 113 | |
| 114 | /* Emulated FPS (frames per second). |
| 115 | * We will emulate 50 FPS. */ |
| 116 | static const int mEmulatedFPS = 50; |
| 117 | }; |
| 118 | |
| 119 | }; /* namespace android */ |
| 120 | |
| 121 | #endif /* HW_EMULATOR_CAMERA_EMULATED_QEMU_CAMERA_DEVICE_H */ |