1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/camera/GonkCameraManager.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,123 @@
1.4 +/*
1.5 + * Copyright (C) 2012-2014 Mozilla Foundation
1.6 + *
1.7 + * Licensed under the Apache License, Version 2.0 (the "License");
1.8 + * you may not use this file except in compliance with the License.
1.9 + * You may obtain a copy of the License at
1.10 + *
1.11 + * http://www.apache.org/licenses/LICENSE-2.0
1.12 + *
1.13 + * Unless required by applicable law or agreed to in writing, software
1.14 + * distributed under the License is distributed on an "AS IS" BASIS,
1.15 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1.16 + * See the License for the specific language governing permissions and
1.17 + * limitations under the License.
1.18 + */
1.19 +
1.20 +#include "ICameraControl.h"
1.21 +
1.22 +#include <camera/Camera.h>
1.23 +
1.24 +#include "CameraCommon.h"
1.25 +#include "GonkCameraControl.h"
1.26 +
1.27 +using namespace mozilla;
1.28 +
1.29 +// From ICameraControl, gonk-specific management functions
1.30 +nsresult
1.31 +ICameraControl::GetNumberOfCameras(int32_t& aDeviceCount)
1.32 +{
1.33 + aDeviceCount = android::Camera::getNumberOfCameras();
1.34 + return NS_OK;
1.35 +}
1.36 +
1.37 +nsresult
1.38 +ICameraControl::GetCameraName(uint32_t aDeviceNum, nsCString& aDeviceName)
1.39 +{
1.40 + int32_t count = android::Camera::getNumberOfCameras();
1.41 + int32_t deviceNum = static_cast<int32_t>(aDeviceNum);
1.42 +
1.43 + DOM_CAMERA_LOGI("GetCameraName : getNumberOfCameras() returned %d\n", count);
1.44 + if (deviceNum < 0 || deviceNum > count) {
1.45 + DOM_CAMERA_LOGE("GetCameraName : invalid device number (%u)\n", aDeviceNum);
1.46 + return NS_ERROR_NOT_AVAILABLE;
1.47 + }
1.48 +
1.49 + android::CameraInfo info;
1.50 + int rv = android::Camera::getCameraInfo(deviceNum, &info);
1.51 + if (rv != 0) {
1.52 + DOM_CAMERA_LOGE("GetCameraName : get_camera_info(%d) failed: %d\n", deviceNum, rv);
1.53 + return NS_ERROR_NOT_AVAILABLE;
1.54 + }
1.55 +
1.56 + switch (info.facing) {
1.57 + case CAMERA_FACING_BACK:
1.58 + aDeviceName.Assign("back");
1.59 + break;
1.60 +
1.61 + case CAMERA_FACING_FRONT:
1.62 + aDeviceName.Assign("front");
1.63 + break;
1.64 +
1.65 + default:
1.66 + aDeviceName.Assign("extra-camera-");
1.67 + aDeviceName.AppendInt(deviceNum);
1.68 + break;
1.69 + }
1.70 + return NS_OK;
1.71 +}
1.72 +
1.73 +nsresult
1.74 +ICameraControl::GetListOfCameras(nsTArray<nsString>& aList)
1.75 +{
1.76 + int32_t count = android::Camera::getNumberOfCameras();
1.77 + DOM_CAMERA_LOGI("getListOfCameras : getNumberOfCameras() returned %d\n", count);
1.78 + if (count <= 0) {
1.79 + return NS_OK;
1.80 + }
1.81 +
1.82 + // Allocate 2 extra slots to reserve space for 'front' and 'back' cameras
1.83 + // at the front of the array--we will collapse any empty slots below.
1.84 + aList.SetLength(2);
1.85 + uint32_t extraIdx = 2;
1.86 + bool gotFront = false;
1.87 + bool gotBack = false;
1.88 + while (count--) {
1.89 + nsCString cameraName;
1.90 + nsresult result = GetCameraName(count, cameraName);
1.91 + if (result != NS_OK) {
1.92 + continue;
1.93 + }
1.94 +
1.95 + // The first camera we find named 'back' gets slot 0; and the first
1.96 + // we find named 'front' gets slot 1. All others appear after these.
1.97 + if (cameraName.EqualsLiteral("back")) {
1.98 + CopyUTF8toUTF16(cameraName, aList[0]);
1.99 + gotBack = true;
1.100 + } else if (cameraName.EqualsLiteral("front")) {
1.101 + CopyUTF8toUTF16(cameraName, aList[1]);
1.102 + gotFront = true;
1.103 + } else {
1.104 + CopyUTF8toUTF16(cameraName, *aList.InsertElementAt(extraIdx));
1.105 + extraIdx++;
1.106 + }
1.107 + }
1.108 +
1.109 + if (!gotFront) {
1.110 + aList.RemoveElementAt(1);
1.111 + }
1.112 +
1.113 + if (!gotBack) {
1.114 + aList.RemoveElementAt(0);
1.115 + }
1.116 +
1.117 + return NS_OK;
1.118 +}
1.119 +
1.120 +// implementation-specific camera factory
1.121 +already_AddRefed<ICameraControl>
1.122 +ICameraControl::Create(uint32_t aCameraId)
1.123 +{
1.124 + nsRefPtr<nsGonkCameraControl> control = new nsGonkCameraControl(aCameraId);
1.125 + return control.forget();
1.126 +}
