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 <log/log.h>
30
31 #include "EmulatedBaseCamera.h"
32
33 namespace android {
34
EmulatedBaseCamera(int cameraId,uint32_t cameraVersion,struct hw_device_t * device,struct hw_module_t * module)35 EmulatedBaseCamera::EmulatedBaseCamera(int cameraId, uint32_t cameraVersion,
36 struct hw_device_t* device,
37 struct hw_module_t* module)
38 : mCameraInfo(NULL),
39 mCameraID(cameraId),
40 mCameraDeviceVersion(cameraVersion) {
41 /*
42 * Initialize camera_device descriptor for this object.
43 */
44
45 /* Common header */
46 device->tag = HARDWARE_DEVICE_TAG;
47 device->version = cameraVersion;
48 device->module = module;
49 device->close = NULL; // Must be filled in by child implementation
50 }
51
~EmulatedBaseCamera()52 EmulatedBaseCamera::~EmulatedBaseCamera() {}
53
getCameraInfo(struct camera_info * info)54 status_t EmulatedBaseCamera::getCameraInfo(struct camera_info* info) {
55 ALOGV("%s", __FUNCTION__);
56
57 info->device_version = mCameraDeviceVersion;
58 if (mCameraDeviceVersion >= HARDWARE_DEVICE_API_VERSION(2, 0)) {
59 info->static_camera_characteristics = mCameraInfo;
60 } else {
61 info->static_camera_characteristics = (camera_metadata_t*)0xcafef00d;
62 }
63
64 return NO_ERROR;
65 }
66
plugCamera()67 status_t EmulatedBaseCamera::plugCamera() {
68 ALOGE("%s: not supported", __FUNCTION__);
69 return INVALID_OPERATION;
70 }
71
unplugCamera()72 status_t EmulatedBaseCamera::unplugCamera() {
73 ALOGE("%s: not supported", __FUNCTION__);
74 return INVALID_OPERATION;
75 }
76
getHotplugStatus()77 camera_device_status_t EmulatedBaseCamera::getHotplugStatus() {
78 return CAMERA_DEVICE_STATUS_PRESENT;
79 }
80
setTorchMode(bool)81 status_t EmulatedBaseCamera::setTorchMode(bool /* enabled */) {
82 ALOGE("%s: not supported", __FUNCTION__);
83 return INVALID_OPERATION;
84 }
85
86 } /* namespace android */
87