| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef HW_EMULATOR_CAMERA_EMULATED_QEMU_CAMERA_DEVICE_H |
| #define HW_EMULATOR_CAMERA_EMULATED_QEMU_CAMERA_DEVICE_H |
| |
| /* |
| * Contains declaration of a class EmulatedQemuCameraDevice that encapsulates |
| * an emulated camera device connected to the host. |
| */ |
| |
| #include "EmulatedCameraDevice.h" |
| #include "QemuClient.h" |
| |
| namespace android { |
| |
| class EmulatedQemuCamera; |
| |
| /* Encapsulates an emulated camera device connected to the host. |
| */ |
| class EmulatedQemuCameraDevice : public EmulatedCameraDevice { |
| public: |
| /* Constructs EmulatedQemuCameraDevice instance. */ |
| explicit EmulatedQemuCameraDevice(EmulatedQemuCamera* camera_hal); |
| |
| /* Destructs EmulatedQemuCameraDevice instance. */ |
| ~EmulatedQemuCameraDevice(); |
| |
| /*************************************************************************** |
| * Public API |
| **************************************************************************/ |
| |
| public: |
| /* Initializes EmulatedQemuCameraDevice instance. |
| * Param: |
| * device_name - Name of the camera device connected to the host. The name |
| * that is used here must have been reported by the 'factory' camera |
| * service when it listed camera devices connected to the host. |
| * Return: |
| * NO_ERROR on success, or an appropriate error status. |
| */ |
| status_t Initialize(const char* device_name); |
| |
| /*************************************************************************** |
| * Emulated camera device abstract interface implementation. |
| * See declarations of these methods in EmulatedCameraDevice class for |
| * information on each of these methods. |
| **************************************************************************/ |
| |
| public: |
| /* Connects to the camera device. */ |
| status_t connectDevice(); |
| |
| /* Disconnects from the camera device. */ |
| status_t disconnectDevice(); |
| |
| /* Starts capturing frames from the camera device. */ |
| status_t startDevice(int width, int height, uint32_t pix_fmt); |
| |
| /* Stops capturing frames from the camera device. */ |
| status_t stopDevice(); |
| |
| /*************************************************************************** |
| * EmulatedCameraDevice virtual overrides |
| * See declarations of these methods in EmulatedCameraDevice class for |
| * information on each of these methods. |
| **************************************************************************/ |
| |
| public: |
| /* Gets current preview fame into provided buffer. |
| * We override this method in order to provide preview frames cached in this |
| * object. |
| */ |
| status_t getCurrentPreviewFrame(void* buffer); |
| |
| /*************************************************************************** |
| * Worker thread management overrides. |
| * See declarations of these methods in EmulatedCameraDevice class for |
| * information on each of these methods. |
| **************************************************************************/ |
| |
| protected: |
| /* Implementation of the worker thread routine. */ |
| bool inWorkerThread(); |
| |
| /*************************************************************************** |
| * Qemu camera device data members |
| **************************************************************************/ |
| |
| private: |
| /* Qemu client that is used to communicate with the 'emulated camera' |
| * service, created for this instance in the emulator. */ |
| CameraQemuClient mQemuClient; |
| |
| /* Name of the camera device connected to the host. */ |
| String8 mDeviceName; |
| |
| /* Current preview framebuffer. */ |
| uint32_t* mPreviewFrame; |
| |
| /* Emulated FPS (frames per second). |
| * We will emulate 50 FPS. */ |
| static const int mEmulatedFPS = 50; |
| }; |
| |
| }; /* namespace android */ |
| |
| #endif /* HW_EMULATOR_CAMERA_EMULATED_QEMU_CAMERA_DEVICE_H */ |