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 /*
18 * Contains implementation of a class EmulatedQemuCamera that encapsulates
19 * functionality of an emulated camera connected to the host.
20 */
21
22 #define LOG_NDEBUG 0
23 #define LOG_TAG "EmulatedCamera_QemuCamera"
24 #include "EmulatedQemuCamera.h"
25 #include <log/log.h>
26 #include "EmulatedCameraFactory.h"
27
28 namespace android {
29
EmulatedQemuCamera(int cameraId,struct hw_module_t * module)30 EmulatedQemuCamera::EmulatedQemuCamera(int cameraId, struct hw_module_t* module)
31 : EmulatedCamera(cameraId, module), mQemuCameraDevice(this) {}
32
~EmulatedQemuCamera()33 EmulatedQemuCamera::~EmulatedQemuCamera() {}
34
35 /****************************************************************************
36 * EmulatedCamera virtual overrides.
37 ***************************************************************************/
38
Initialize(const char * device_name,const char * frame_dims,const char * facing_dir)39 status_t EmulatedQemuCamera::Initialize(const char* device_name,
40 const char* frame_dims,
41 const char* facing_dir) {
42 ALOGV("%s:\n Name=%s\n Facing '%s'\n Dimensions=%s", __FUNCTION__,
43 device_name, facing_dir, frame_dims);
44 /* Save dimensions. */
45 mFrameDims = frame_dims;
46
47 /* Initialize camera device. */
48 status_t res = mQemuCameraDevice.Initialize(device_name);
49 if (res != NO_ERROR) {
50 return res;
51 }
52
53 /* Initialize base class. */
54 res = EmulatedCamera::Initialize();
55 if (res != NO_ERROR) {
56 return res;
57 }
58
59 /*
60 * Set customizable parameters.
61 */
62
63 mParameters.set(EmulatedCamera::FACING_KEY, facing_dir);
64 mParameters.set(EmulatedCamera::ORIENTATION_KEY,
65 gEmulatedCameraFactory.getQemuCameraOrientation());
66 mParameters.set(CameraParameters::KEY_SUPPORTED_PICTURE_SIZES, frame_dims);
67 mParameters.set(CameraParameters::KEY_SUPPORTED_PREVIEW_SIZES, frame_dims);
68
69 /*
70 * Use first dimension reported by the device to set current preview and
71 * picture sizes.
72 */
73
74 char first_dim[128];
75 /* Dimensions are separated with ',' */
76 const char* c = strchr(frame_dims, ',');
77 if (c == NULL) {
78 strncpy(first_dim, frame_dims, sizeof(first_dim));
79 first_dim[sizeof(first_dim) - 1] = '\0';
80 } else if (static_cast<size_t>(c - frame_dims) < sizeof(first_dim)) {
81 memcpy(first_dim, frame_dims, c - frame_dims);
82 first_dim[c - frame_dims] = '\0';
83 } else {
84 memcpy(first_dim, frame_dims, sizeof(first_dim));
85 first_dim[sizeof(first_dim) - 1] = '\0';
86 }
87
88 /* Width and height are separated with 'x' */
89 char* sep = strchr(first_dim, 'x');
90 if (sep == NULL) {
91 ALOGE("%s: Invalid first dimension format in %s", __FUNCTION__, frame_dims);
92 return EINVAL;
93 }
94
95 *sep = '\0';
96 const int x = atoi(first_dim);
97 const int y = atoi(sep + 1);
98 mParameters.setPreviewSize(x, y);
99 mParameters.setPictureSize(x, y);
100
101 ALOGV("%s: Qemu camera %s is initialized. Current frame is %dx%d",
102 __FUNCTION__, device_name, x, y);
103
104 return NO_ERROR;
105 }
106
getCameraDevice()107 EmulatedCameraDevice* EmulatedQemuCamera::getCameraDevice() {
108 return &mQemuCameraDevice;
109 }
110
111 }; /* namespace android */
112