1 /* 2 * Copyright (C) 2012 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 /* 18 * Contains implementation of a class EmulatedBaseCamera that encapsulates 19 * functionality common to all emulated camera device versions ("fake", 20 * "webcam", "video file", "cam2.0" etc.). Instances of this class (for each 21 * emulated camera) are created during the construction of the 22 * EmulatedCameraFactory instance. This class serves as an entry point for all 23 * camera API calls that are common across all versions of the 24 * camera_device_t/camera_module_t structures. 25 */ 26 27 #define LOG_NDEBUG 0 28 #define LOG_TAG "EmulatedCamera_BaseCamera" 29 #include <cutils/log.h> 30 31 #include "EmulatedBaseCamera.h" 32 33 namespace android { 34 35 EmulatedBaseCamera::EmulatedBaseCamera(int cameraId, 36 uint32_t cameraVersion, 37 struct hw_device_t* device, 38 struct hw_module_t* module) 39 : mCameraInfo(NULL), 40 mCameraID(cameraId), 41 mCameraDeviceVersion(cameraVersion) 42 { 43 /* 44 * Initialize camera_device descriptor for this object. 45 */ 46 47 /* Common header */ 48 device->tag = HARDWARE_DEVICE_TAG; 49 device->version = cameraVersion; 50 device->module = module; 51 device->close = NULL; // Must be filled in by child implementation 52 } 53 54 EmulatedBaseCamera::~EmulatedBaseCamera() 55 { 56 } 57 58 status_t EmulatedBaseCamera::getCameraInfo(struct camera_info* info) 59 { 60 ALOGV("%s", __FUNCTION__); 61 62 info->device_version = mCameraDeviceVersion; 63 if (mCameraDeviceVersion >= HARDWARE_DEVICE_API_VERSION(2, 0)) { 64 info->static_camera_characteristics = mCameraInfo; 65 } else { 66 info->static_camera_characteristics = (camera_metadata_t*)0xcafef00d; 67 } 68 69 return NO_ERROR; 70 } 71 72 status_t EmulatedBaseCamera::plugCamera() { 73 ALOGE("%s: not supported", __FUNCTION__); 74 return INVALID_OPERATION; 75 } 76 77 status_t EmulatedBaseCamera::unplugCamera() { 78 ALOGE("%s: not supported", __FUNCTION__); 79 return INVALID_OPERATION; 80 } 81 82 camera_device_status_t EmulatedBaseCamera::getHotplugStatus() { 83 return CAMERA_DEVICE_STATUS_PRESENT; 84 } 85 86 87 88 89 } /* namespace android */ 90
