mirror of
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112 lines
3.1 KiB
C++
112 lines
3.1 KiB
C++
/*
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* Copyright (C) 2012 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <camera/Camera.h>
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#include "GonkCameraControl.h"
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#include "DOMCameraManager.h"
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#include "CameraCommon.h"
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#include "mozilla/ErrorResult.h"
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using namespace mozilla;
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// From nsDOMCameraManager, but gonk-specific!
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nsresult
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nsDOMCameraManager::GetNumberOfCameras(int32_t& aDeviceCount)
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{
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aDeviceCount = android::Camera::getNumberOfCameras();
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return NS_OK;
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}
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nsresult
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nsDOMCameraManager::GetCameraName(uint32_t aDeviceNum, nsCString& aDeviceName)
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{
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int32_t count = android::Camera::getNumberOfCameras();
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DOM_CAMERA_LOGI("GetCameraName : getNumberOfCameras() returned %d\n", count);
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if (aDeviceNum > count) {
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DOM_CAMERA_LOGE("GetCameraName : invalid device number");
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return NS_ERROR_NOT_AVAILABLE;
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}
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android::CameraInfo info;
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int rv = android::Camera::getCameraInfo(aDeviceNum, &info);
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if (rv != 0) {
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DOM_CAMERA_LOGE("GetCameraName : get_camera_info(%d) failed: %d\n", aDeviceNum, rv);
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return NS_ERROR_NOT_AVAILABLE;
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}
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switch (info.facing) {
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case CAMERA_FACING_BACK:
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aDeviceName.Assign("back");
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break;
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case CAMERA_FACING_FRONT:
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aDeviceName.Assign("front");
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break;
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default:
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aDeviceName.Assign("extra-camera-");
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aDeviceName.AppendInt(aDeviceNum);
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break;
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}
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return NS_OK;
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}
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void
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nsDOMCameraManager::GetListOfCameras(nsTArray<nsString>& aList, ErrorResult& aRv)
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{
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int32_t count = android::Camera::getNumberOfCameras();
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if (count <= 0) {
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return;
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}
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DOM_CAMERA_LOGI("getListOfCameras : getNumberOfCameras() returned %d\n", count);
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// Allocate 2 extra slots to reserve space for 'front' and 'back' cameras
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// at the front of the array--we will collapse any empty slots below.
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aList.SetLength(2);
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uint32_t extraIdx = 2;
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bool gotFront = false, gotBack = false;
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while (count--) {
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nsCString cameraName;
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nsresult result = GetCameraName(count, cameraName);
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if (result != NS_OK) {
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continue;
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}
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// The first camera we find named 'back' gets slot 0; and the first
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// we find named 'front' gets slot 1. All others appear after these.
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if (cameraName.EqualsLiteral("back")) {
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CopyUTF8toUTF16(cameraName, aList[0]);
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gotBack = true;
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} else if (cameraName.EqualsLiteral("front")) {
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CopyUTF8toUTF16(cameraName, aList[1]);
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gotFront = true;
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} else {
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CopyUTF8toUTF16(cameraName, *aList.InsertElementAt(extraIdx));
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extraIdx++;
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}
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}
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if (!gotFront) {
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aList.RemoveElementAt(1);
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}
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if (!gotBack) {
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aList.RemoveElementAt(0);
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}
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}
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