/**
* Initializing the ioctls.
*/
public void Init(Ioctls ioctls, Core core, Runtime runtime)
{
mCamera = new PhotoCamera(mCameraType);
mVideoBrush = new VideoBrush();
runtime.RegisterCleaner(delegate()
{
if (null != mCamera)
{
mCamera.Dispose();
mCamera = null;
}
});
mRuntime = runtime;
PhoneApplicationPage currentPage = (((PhoneApplicationFrame)Application.Current.RootVisual).Content as PhoneApplicationPage);
// set the initial camera orientation in respect to the current page orientation
SetInitialCameraOrientation(currentPage);
// handle current page orientation and adjust the camera orientation accordingly
HandleDeviceOrientation(currentPage);
/**
* Stores an output format in fmm parameter.
* @param _index int the index of the required format.
* @param _fmt int the momory address at which to write the output format dimensions.
*
* Note: the _index should be greater than 0 and smaller than the number of camera formats.
*/
ioctls.maCameraFormat = delegate(int _index, int _fmt)
{
System.Windows.Size dim;
if (GetCameraFormat(_index, out dim) == false)
{
return(MoSync.Constants.MA_CAMERA_RES_FAILED);
}
core.GetDataMemory().WriteInt32(_fmt + MoSync.Struct.MA_CAMERA_FORMAT.width,
(int)dim.Width);
core.GetDataMemory().WriteInt32(_fmt + MoSync.Struct.MA_CAMERA_FORMAT.height,
(int)dim.Height);
return(MoSync.Constants.MA_CAMERA_RES_OK);
};
/**
* Returns the number of different output formats supported by the current device's camera.
* \< 0 if there is no camera support.
* 0 if there is camera support, but the format is unknown.
*/
ioctls.maCameraFormatNumber = delegate()
{
// if the camera is not initialized, we cannot access any of its properties
if (!isCameraInitialized)
{
// because the cammera is supported but not initialized, we return 0
return(0);
}
IEnumerable <System.Windows.Size> res = mCamera.AvailableResolutions;
if (res == null)
{
return(0);
}
IEnumerator <System.Windows.Size> resolutions = res.GetEnumerator();
resolutions.MoveNext();
int number = 0;
while (resolutions.Current != null)
{
number++;
resolutions.MoveNext();
if (resolutions.Current == new System.Windows.Size(0, 0))
{
break;
}
}
return(number);
};
/**
* Starts the viewfinder and the camera
*/
ioctls.maCameraStart = delegate()
{
if (isCameraSnapshotInProgress)
{
return(MoSync.Constants.MA_CAMERA_RES_SNAPSHOT_IN_PROGRESS);
}
InitCamera();
MoSync.Util.RunActionOnMainThreadSync(() =>
{
mCameraPrev.StartViewFinder();
});
return(0);
};
/**
* stops the view finder and the camera.
*/
ioctls.maCameraStop = delegate()
{
if (isCameraSnapshotInProgress)
{
// We need to post snapshot failed if the camera was stopped during snapshot operation
postSnapshotEvent(snapshotPlaceHolder, mCamera.Resolution,
MoSync.Constants.MA_IMAGE_REPRESENTATION_UNKNOWN, MoSync.Constants.MA_CAMERA_RES_FAILED);
isCameraSnapshotInProgress = false;
}
MoSync.Util.RunActionOnMainThreadSync(() =>
{
mCameraPrev.StopViewFinder();
});
return(0);
};
/**
* Adds a previewWidget to the camera controller in devices that support native UI.
*/
ioctls.maCameraSetPreview = delegate(int _widgetHandle)
{
// if the camera is not initialized, we need to initialize it before
// setting the preview
if (!isCameraInitialized)
{
InitCamera();
}
IWidget w = runtime.GetModule <NativeUIModule>().GetWidget(_widgetHandle);
if (w.GetType() != typeof(MoSync.NativeUI.CameraPreview))
{
return(MoSync.Constants.MA_CAMERA_RES_FAILED);
}
mCameraPrev = (NativeUI.CameraPreview)w;
mCameraPrev.SetViewFinderContent(mVideoBrush);
return(MoSync.Constants.MA_CAMERA_RES_OK);
};
/**
* Returns the number of available Camera on the device.
*/
ioctls.maCameraNumber = delegate()
{
if (PhotoCamera.IsCameraTypeSupported(CameraType.FrontFacing) && PhotoCamera.IsCameraTypeSupported(CameraType.Primary))
{
return(2);
}
else if (PhotoCamera.IsCameraTypeSupported(CameraType.FrontFacing) || PhotoCamera.IsCameraTypeSupported(CameraType.Primary))
{
return(1);
}
return(0);
};
/**
* Captures an image and stores it as a new data object in the
* supplied placeholder.
* @param _formatIndex int the required format.
* @param _placeHolder int the placeholder used for storing the image.
*/
ioctls.maCameraSnapshot = delegate(int _formatIndex, int _placeHolder)
{
if (isCameraSnapshotInProgress)
{
return(MoSync.Constants.MA_CAMERA_RES_SNAPSHOT_IN_PROGRESS);
}
// If MA_CAMERA_SNAPSHOT_MAX_SIZE is sent via _formatIndex then we
// need to select the biggest available snapshot size/resolution.
if (MoSync.Constants.MA_CAMERA_SNAPSHOT_MAX_SIZE == _formatIndex)
{
_formatIndex = (int)ioctls.maCameraFormatNumber() - 1;
}
AutoResetEvent are = new AutoResetEvent(false);
System.Windows.Size dim;
if (GetCameraFormat(_formatIndex, out dim) == false)
{
return(MoSync.Constants.MA_CAMERA_RES_FAILED);
}
mCamera.Resolution = dim;
if (mCameraSnapshotDelegate != null)
{
mCamera.CaptureImageAvailable -= mCameraSnapshotDelegate;
}
mCameraSnapshotDelegate = delegate(object o, ContentReadyEventArgs args)
{
MoSync.Util.RunActionOnMainThreadSync(() =>
{
Resource res = runtime.GetResource(MoSync.Constants.RT_PLACEHOLDER, _placeHolder);
Stream data = null;
try
{
// as the camera always takes a snapshot in landscape left orientation,
// we need to rotate the resulting image 90 degrees for a current PortraitUp orientation
// and 180 degrees for a current LandscapeRight orientation
int rotateAngle = 0;
if (currentPage.Orientation == PageOrientation.PortraitUp)
{
rotateAngle = 90;
}
else if (currentPage.Orientation == PageOrientation.LandscapeRight)
{
rotateAngle = 180;
}
// if the current page is in a LandscapeLeft orientation, the orientation angle will be 0
data = RotateImage(args.ImageStream, rotateAngle);
}
catch
{
// the orientation angle was not a multiple of 90 - we keep the original image
data = args.ImageStream;
}
MemoryStream dataMem = new MemoryStream((int)data.Length);
MoSync.Util.CopySeekableStreams(data, 0, dataMem, 0, (int)data.Length);
res.SetInternalObject(dataMem);
});
are.Set();
};
mCamera.CaptureImageAvailable += mCameraSnapshotDelegate;
mCamera.CaptureImage();
are.WaitOne();
return(MoSync.Constants.MA_CAMERA_RES_OK);
};
/**
* Captures an image and stores it as a new data object in new
* placeholder that is sent via #EVENT_TYPE_CAMERA_SNAPSHOT event.
* @param _placeHolder int the placeholder used for storing the image.
* @param _sizeIndex int the required size index.
*/
ioctls.maCameraSnapshotAsync = delegate(int _placeHolder, int _sizeIndex)
{
if (isCameraSnapshotInProgress)
{
return(MoSync.Constants.MA_CAMERA_RES_SNAPSHOT_IN_PROGRESS);
}
// If MA_CAMERA_SNAPSHOT_MAX_SIZE is sent via _sizeIndex then we
// need to select the biggest available snapshot size/resolution.
if (MoSync.Constants.MA_CAMERA_SNAPSHOT_MAX_SIZE == _sizeIndex)
{
_sizeIndex = (int)ioctls.maCameraFormatNumber() - 1;
}
System.Windows.Size dim;
if (GetCameraFormat(_sizeIndex, out dim) == false)
{
return(MoSync.Constants.MA_CAMERA_RES_FAILED);
}
mCamera.Resolution = dim;
if (mCameraSnapshotDelegate != null)
{
mCamera.CaptureImageAvailable -= mCameraSnapshotDelegate;
}
mCameraSnapshotDelegate = delegate(object o, ContentReadyEventArgs args)
{
MoSync.Util.RunActionOnMainThreadSync(() =>
{
// If the camera was stopped and this delegate was still called then we do nothing here
// because in maCameraStop we already send the snapshot failed event.
if (!isCameraSnapshotInProgress)
{
return;
}
Stream data = null;
try
{
// as the camera always takes a snapshot in landscape left orientation,
// we need to rotate the resulting image 90 degrees for a current PortraitUp orientation
// and 180 degrees for a current LandscapeRight orientation
int rotateAngle = 0;
if (currentPage.Orientation == PageOrientation.PortraitUp)
{
// This is for the front camera.
if (mCamera.CameraType != CameraType.Primary)
{
rotateAngle = 270;
}
else
{
rotateAngle = 90;
}
}
else if (currentPage.Orientation == PageOrientation.LandscapeRight)
{
rotateAngle = 180;
}
// if the current page is in a LandscapeLeft orientation, the orientation angle will be 0
data = RotateImage(args.ImageStream, rotateAngle);
}
catch
{
// the orientation angle was not a multiple of 90 - we keep the original image
data = args.ImageStream;
}
Resource res = runtime.GetResource(MoSync.Constants.RT_PLACEHOLDER, _placeHolder);
MemoryStream dataMem = new MemoryStream((int)data.Length);
MoSync.Util.CopySeekableStreams(data, 0, dataMem, 0, (int)data.Length);
res.SetInternalObject(dataMem);
postSnapshotEvent(_placeHolder, mCamera.Resolution,
MoSync.Constants.MA_IMAGE_REPRESENTATION_RAW, MoSync.Constants.MA_CAMERA_RES_OK);
isCameraSnapshotInProgress = false;
});
};
mCamera.CaptureImageAvailable += mCameraSnapshotDelegate;
mCamera.CaptureImage();
snapshotPlaceHolder = _placeHolder;
isCameraSnapshotInProgress = true;
return(MoSync.Constants.MA_CAMERA_RES_OK);
};
/**
* Sets the property represented by the string situated at the
* _property address with the value situated at the _value address.
* @param _property int the property name address
* @param _value int the value address
*
* Note: the fallowing properties are not available on windows phone
* MA_CAMERA_FOCUS_MODE, MA_CAMERA_IMAGE_FORMAT, MA_CAMERA_ZOOM,
* MA_CAMERA_MAX_ZOOM.
*/
ioctls.maCameraSetProperty = delegate(int _property, int _value)
{
// if the camera is not initialized, we cannot access any of its properties
if (!isCameraInitialized)
{
return(MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED);
}
String property = core.GetDataMemory().ReadStringAtAddress(_property);
String value = core.GetDataMemory().ReadStringAtAddress(_value);
if (property.Equals(MoSync.Constants.MA_CAMERA_FLASH_MODE))
{
if (value.Equals(MoSync.Constants.MA_CAMERA_FLASH_ON) && mCamera.IsFlashModeSupported(FlashMode.On))
{
mCamera.FlashMode = FlashMode.On;
mFlashMode = FlashMode.On;
}
else if (value.Equals(MoSync.Constants.MA_CAMERA_FLASH_OFF) && mCamera.IsFlashModeSupported(FlashMode.Off))
{
mCamera.FlashMode = FlashMode.Off;
mFlashMode = FlashMode.Off;
}
else if (value.Equals(MoSync.Constants.MA_CAMERA_FLASH_AUTO) && mCamera.IsFlashModeSupported(FlashMode.Auto))
{
mCamera.FlashMode = FlashMode.Auto;
mFlashMode = FlashMode.Auto;
}
else
{
return(MoSync.Constants.MA_CAMERA_RES_INVALID_PROPERTY_VALUE);
}
return(MoSync.Constants.MA_CAMERA_RES_OK);
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_FOCUS_MODE))
{
return(MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED);
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_IMAGE_FORMAT))
{
return(MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED);
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_ZOOM))
{
return(MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED);
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_MAX_ZOOM))
{
return(MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED);
}
else
{
return(MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED);
}
};
/**
* Selects a camera from the avalable ones;
* in this eigther the back or the front camera is
* chosen
*/
ioctls.maCameraSelect = delegate(int _camera)
{
// if the camera is not initialized, we cannot access any of its properties
if (!isCameraInitialized)
{
return(MoSync.Constants.MA_CAMERA_RES_FAILED);
}
if (MoSync.Constants.MA_CAMERA_CONST_BACK_CAMERA == _camera)
{
if (mCamera.CameraType != CameraType.Primary)
{
mCameraType = CameraType.Primary;
InitCamera();
MoSync.Util.RunActionOnMainThreadSync(() =>
{
SetInitialCameraOrientation(currentPage);
}
);
}
}
else if (MoSync.Constants.MA_CAMERA_CONST_FRONT_CAMERA == _camera)
{
if (mCamera.CameraType != CameraType.FrontFacing)
{
mCameraType = CameraType.FrontFacing;
InitCamera();
MoSync.Util.RunActionOnMainThreadSync(() =>
{
SetInitialCameraOrientation(currentPage);
}
);
}
}
else
{
return(MoSync.Constants.MA_CAMERA_RES_FAILED);
}
return(MoSync.Constants.MA_CAMERA_RES_OK);
};
/**
* Retrieves the specified property value in the given buffer.
* @param _property int the address for the property string
* @param _value int the address for the property value string (the buffer)
* @param _bufSize int the buffer size
*/
ioctls.maCameraGetProperty = delegate(int _property, int _value, int _bufSize)
{
String property = core.GetDataMemory().ReadStringAtAddress(_property);
if (property.Equals(MoSync.Constants.MA_CAMERA_MAX_ZOOM))
{
core.GetDataMemory().WriteStringAtAddress(
_value,
"0",
_bufSize);
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_ZOOM_SUPPORTED))
{
core.GetDataMemory().WriteStringAtAddress(
_value,
"false",
_bufSize);
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_FLASH_SUPPORTED))
{
/*
* Since we cannot see if flash is supported because the camera may be not
* fully initialized when this is called, we assume that each windows phone
* has flash support for primary camera but not for the from camera.
*/
String result = "true";
if (mCamera.CameraType != CameraType.Primary)
{
result = "false";
}
core.GetDataMemory().WriteStringAtAddress(
_value,
result,
_bufSize);
}
else
{
return(MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED);
}
return(0);
};
ioctls.maCameraRecord = delegate(int _stopStartFlag)
{
return(MoSync.Constants.MA_CAMERA_RES_FAILED);
};
}
/**
* Initializing the ioctls.
*/
public void Init(Ioctls ioctls, Core core, Runtime runtime)
{
mCamera = new PhotoCamera(mCameraType);
mVideoBrush = new VideoBrush();
runtime.RegisterCleaner(delegate()
{
if (null != mCamera)
{
mCamera.Dispose();
mCamera = null;
}
});
// this should be set according to the orientation of
// the device I guess.
// we need to handle the camera orientation by hand
PhoneApplicationPage currentPage = (((PhoneApplicationFrame)Application.Current.RootVisual).Content as PhoneApplicationPage);
// we need to handle the initial page orientation
double rotation = mCamera.Orientation;
if (currentPage.Orientation == PageOrientation.LandscapeLeft)
{
rotation -= 90;
}
else if (currentPage.Orientation == PageOrientation.LandscapeRight)
{
rotation += 90;
}
mVideoBrush.RelativeTransform = new CompositeTransform()
{
CenterX = 0.5,
CenterY = 0.5,
Rotation = rotation
};
// on orientation changed, we need to rotate the video brush
currentPage.OrientationChanged += new System.EventHandler<OrientationChangedEventArgs>(
delegate(object o, OrientationChangedEventArgs args)
{
rotation = mCamera.Orientation;
if (args.Orientation == PageOrientation.LandscapeLeft)
{
rotation -= 90;
}
else if (args.Orientation == PageOrientation.LandscapeRight)
{
rotation += 90;
}
mVideoBrush.RelativeTransform = new CompositeTransform()
{
CenterX = 0.5,
CenterY = 0.5,
Rotation = rotation
};
});
/**
* Stores an output format in fmm parameter.
* @param _index int the index of the required format.
* @param _fmt int the momory address at which to write the output format dimensions.
*
* Note: the _index should be greater than 0 and smaller than the number of camera formats.
*/
ioctls.maCameraFormat = delegate(int _index, int _fmt)
{
System.Windows.Size dim;
if (GetCameraFormat(_index, out dim) == false)
return MoSync.Constants.MA_CAMERA_RES_FAILED;
core.GetDataMemory().WriteInt32(_fmt + MoSync.Struct.MA_CAMERA_FORMAT.width,
(int)dim.Width);
core.GetDataMemory().WriteInt32(_fmt + MoSync.Struct.MA_CAMERA_FORMAT.height,
(int)dim.Height);
return MoSync.Constants.MA_CAMERA_RES_OK;
};
/**
* Returns the number of different output formats supported by the current device's camera.
* \< 0 if there is no camera support.
* 0 if there is camera support, but the format is unknown.
*/
ioctls.maCameraFormatNumber = delegate()
{
// if the camera is not initialized, we cannot access any of its properties
if (!isCameraInitialized)
{
// because the cammera is supported but not initialized, we return 0
return 0;
}
IEnumerable<System.Windows.Size> res = mCamera.AvailableResolutions;
if (res == null) return 0;
IEnumerator<System.Windows.Size> resolutions = res.GetEnumerator();
resolutions.MoveNext();
int number = 0;
while (resolutions.Current != null)
{
number++;
resolutions.MoveNext();
if (resolutions.Current == new System.Windows.Size(0, 0))
break;
}
return number;
};
/**
* Starts the viewfinder and the camera
*/
ioctls.maCameraStart = delegate()
{
initCamera();
MoSync.Util.RunActionOnMainThreadSync(() =>
{
mCameraPrev.StartViewFinder();
});
return 0;
};
/**
* stops the view finder and the camera.
*/
ioctls.maCameraStop = delegate()
{
MoSync.Util.RunActionOnMainThreadSync(() =>
{
mCameraPrev.StopViewFinder();
});
return 0;
};
/**
* Adds a previewWidget to the camera controller in devices that support native UI.
*/
ioctls.maCameraSetPreview = delegate(int _widgetHandle)
{
// if the camera is not initialized, we need to initialize it before
// setting the preview
if (!isCameraInitialized)
{
initCamera();
}
IWidget w = runtime.GetModule<NativeUIModule>().GetWidget(_widgetHandle);
if (w.GetType() != typeof(MoSync.NativeUI.CameraPreview))
{
return MoSync.Constants.MA_CAMERA_RES_FAILED;
}
mCameraPrev = (NativeUI.CameraPreview)w;
mCameraPrev.SetViewFinderContent(mVideoBrush);
return MoSync.Constants.MA_CAMERA_RES_OK;
};
/**
* Returns the number of available Camera on the device.
*/
ioctls.maCameraNumber = delegate()
{
if (PhotoCamera.IsCameraTypeSupported(CameraType.FrontFacing) && PhotoCamera.IsCameraTypeSupported(CameraType.Primary))
return 2;
else if (PhotoCamera.IsCameraTypeSupported(CameraType.FrontFacing) || PhotoCamera.IsCameraTypeSupported(CameraType.Primary))
return 1;
return 0;
};
/**
* Captures an image and stores it as a new data object in the
* supplied placeholder.
* @param _formatIndex int the required format.
* @param _placeHolder int the placeholder used for storing the image.
*/
ioctls.maCameraSnapshot = delegate(int _formatIndex, int _placeHolder)
{
AutoResetEvent are = new AutoResetEvent(false);
System.Windows.Size dim;
if (GetCameraFormat(_formatIndex, out dim) == false)
return MoSync.Constants.MA_CAMERA_RES_FAILED;
mCamera.Resolution = dim;
if (mCameraSnapshotDelegate != null)
mCamera.CaptureImageAvailable -= mCameraSnapshotDelegate;
mCameraSnapshotDelegate = delegate(object o, ContentReadyEventArgs args)
{
MoSync.Util.RunActionOnMainThreadSync(() =>
{
Resource res = runtime.GetResource(MoSync.Constants.RT_PLACEHOLDER, _placeHolder);
Stream data = args.ImageStream;
MemoryStream dataMem = new MemoryStream((int)data.Length);
MoSync.Util.CopySeekableStreams(data, 0, dataMem, 0, (int)data.Length);
res.SetInternalObject(dataMem);
});
are.Set();
};
mCamera.CaptureImageAvailable += mCameraSnapshotDelegate;
mCamera.CaptureImage();
are.WaitOne();
return 0;
};
/**
* Sets the property represented by the string situated at the
* _property address with the value situated at the _value address.
* @param _property int the property name address
* @param _value int the value address
*
* Note: the fallowing properties are not available on windows phone
* MA_CAMERA_FOCUS_MODE, MA_CAMERA_IMAGE_FORMAT, MA_CAMERA_ZOOM,
* MA_CAMERA_MAX_ZOOM.
*/
ioctls.maCameraSetProperty = delegate(int _property, int _value)
{
// if the camera is not initialized, we cannot access any of its properties
if (!isCameraInitialized)
{
return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
}
String property = core.GetDataMemory().ReadStringAtAddress(_property);
String value = core.GetDataMemory().ReadStringAtAddress(_value);
if (property.Equals(MoSync.Constants.MA_CAMERA_FLASH_MODE))
{
if (value.Equals(MoSync.Constants.MA_CAMERA_FLASH_ON))
{
mCamera.FlashMode = FlashMode.On;
mFlashMode = FlashMode.On;
}
else if (value.Equals(MoSync.Constants.MA_CAMERA_FLASH_OFF))
{
mCamera.FlashMode = FlashMode.Off;
mFlashMode = FlashMode.Off;
}
else if (value.Equals(MoSync.Constants.MA_CAMERA_FLASH_AUTO))
{
mCamera.FlashMode = FlashMode.Auto;
mFlashMode = FlashMode.Auto;
}
else return MoSync.Constants.MA_CAMERA_RES_INVALID_PROPERTY_VALUE;
return MoSync.Constants.MA_CAMERA_RES_OK;
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_FOCUS_MODE))
{
return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_IMAGE_FORMAT))
{
return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_ZOOM))
{
return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_MAX_ZOOM))
{
return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
}
else return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
};
/**
* Selects a camera from the avalable ones;
* in this eigther the back or the front camera is
* chosen
*/
ioctls.maCameraSelect = delegate(int _camera)
{
// if the camera is not initialized, we cannot access any of its properties
if (!isCameraInitialized)
{
return MoSync.Constants.MA_CAMERA_RES_FAILED;
}
if ( MoSync.Constants.MA_CAMERA_CONST_BACK_CAMERA == _camera)
{
if (mCamera.CameraType != CameraType.Primary)
{
mCameraType = CameraType.Primary;
initCamera();
}
}
else if (MoSync.Constants.MA_CAMERA_CONST_FRONT_CAMERA == _camera)
{
if (mCamera.CameraType != CameraType.FrontFacing)
{
mCameraType = CameraType.FrontFacing;
initCamera();
}
}
else return MoSync.Constants.MA_CAMERA_RES_FAILED;
return MoSync.Constants.MA_CAMERA_RES_OK;
};
/**
* Retrieves the specified property value in the given buffer.
* @param _property int the address for the property string
* @param _value int the address for the property value string (the buffer)
* @param _bufSize int the buffer size
*/
ioctls.maCameraGetProperty = delegate(int _property, int _value, int _bufSize)
{
String property = core.GetDataMemory().ReadStringAtAddress(_property);
if (property.Equals(MoSync.Constants.MA_CAMERA_MAX_ZOOM))
{
core.GetDataMemory().WriteStringAtAddress(
_value,
"0",
_bufSize);
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_ZOOM_SUPPORTED))
{
core.GetDataMemory().WriteStringAtAddress(
_value,
"false",
_bufSize);
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_FLASH_SUPPORTED))
{
core.GetDataMemory().WriteStringAtAddress(
_value,
"true",
_bufSize);
}
else return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
return 0;
};
ioctls.maCameraRecord = delegate(int _stopStartFlag)
{
return MoSync.Constants.MA_CAMERA_RES_FAILED;
};
}
/**
* Initializing the ioctls.
*/
public void Init(Ioctls ioctls, Core core, Runtime runtime)
{
mCamera = new PhotoCamera(mCameraType);
mVideoBrush = new VideoBrush();
runtime.RegisterCleaner(delegate()
{
if (null != mCamera)
{
mCamera.Dispose();
mCamera = null;
}
});
PhoneApplicationPage currentPage = (((PhoneApplicationFrame)Application.Current.RootVisual).Content as PhoneApplicationPage);
// set the initial camera orientation in respect to the current page orientation
SetInitialCameraOrientation(currentPage);
// handle current page orientation and adjust the camera orientation accordingly
HandleDeviceOrientation(currentPage);
/**
* Stores an output format in fmm parameter.
* @param _index int the index of the required format.
* @param _fmt int the momory address at which to write the output format dimensions.
*
* Note: the _index should be greater than 0 and smaller than the number of camera formats.
*/
ioctls.maCameraFormat = delegate(int _index, int _fmt)
{
System.Windows.Size dim;
if (GetCameraFormat(_index, out dim) == false)
return MoSync.Constants.MA_CAMERA_RES_FAILED;
core.GetDataMemory().WriteInt32(_fmt + MoSync.Struct.MA_CAMERA_FORMAT.width,
(int)dim.Width);
core.GetDataMemory().WriteInt32(_fmt + MoSync.Struct.MA_CAMERA_FORMAT.height,
(int)dim.Height);
return MoSync.Constants.MA_CAMERA_RES_OK;
};
/**
* Returns the number of different output formats supported by the current device's camera.
* \< 0 if there is no camera support.
* 0 if there is camera support, but the format is unknown.
*/
ioctls.maCameraFormatNumber = delegate()
{
// if the camera is not initialized, we cannot access any of its properties
if (!isCameraInitialized)
{
// because the cammera is supported but not initialized, we return 0
return 0;
}
IEnumerable<System.Windows.Size> res = mCamera.AvailableResolutions;
if (res == null) return 0;
IEnumerator<System.Windows.Size> resolutions = res.GetEnumerator();
resolutions.MoveNext();
int number = 0;
while (resolutions.Current != null)
{
number++;
resolutions.MoveNext();
if (resolutions.Current == new System.Windows.Size(0, 0))
break;
}
return number;
};
/**
* Starts the viewfinder and the camera
*/
ioctls.maCameraStart = delegate()
{
InitCamera();
MoSync.Util.RunActionOnMainThreadSync(() =>
{
mCameraPrev.StartViewFinder();
});
return 0;
};
/**
* stops the view finder and the camera.
*/
ioctls.maCameraStop = delegate()
{
MoSync.Util.RunActionOnMainThreadSync(() =>
{
mCameraPrev.StopViewFinder();
});
return 0;
};
/**
* Adds a previewWidget to the camera controller in devices that support native UI.
*/
ioctls.maCameraSetPreview = delegate(int _widgetHandle)
{
// if the camera is not initialized, we need to initialize it before
// setting the preview
if (!isCameraInitialized)
{
InitCamera();
}
IWidget w = runtime.GetModule<NativeUIModule>().GetWidget(_widgetHandle);
if (w.GetType() != typeof(MoSync.NativeUI.CameraPreview))
{
return MoSync.Constants.MA_CAMERA_RES_FAILED;
}
mCameraPrev = (NativeUI.CameraPreview)w;
mCameraPrev.SetViewFinderContent(mVideoBrush);
return MoSync.Constants.MA_CAMERA_RES_OK;
};
/**
* Returns the number of available Camera on the device.
*/
ioctls.maCameraNumber = delegate()
{
if (PhotoCamera.IsCameraTypeSupported(CameraType.FrontFacing) && PhotoCamera.IsCameraTypeSupported(CameraType.Primary))
return 2;
else if (PhotoCamera.IsCameraTypeSupported(CameraType.FrontFacing) || PhotoCamera.IsCameraTypeSupported(CameraType.Primary))
return 1;
return 0;
};
/**
* Captures an image and stores it as a new data object in the
* supplied placeholder.
* @param _formatIndex int the required format.
* @param _placeHolder int the placeholder used for storing the image.
*/
ioctls.maCameraSnapshot = delegate(int _formatIndex, int _placeHolder)
{
AutoResetEvent are = new AutoResetEvent(false);
System.Windows.Size dim;
if (GetCameraFormat(_formatIndex, out dim) == false)
return MoSync.Constants.MA_CAMERA_RES_FAILED;
mCamera.Resolution = dim;
if (mCameraSnapshotDelegate != null)
mCamera.CaptureImageAvailable -= mCameraSnapshotDelegate;
mCameraSnapshotDelegate = delegate(object o, ContentReadyEventArgs args)
{
MoSync.Util.RunActionOnMainThreadSync(() =>
{
Resource res = runtime.GetResource(MoSync.Constants.RT_PLACEHOLDER, _placeHolder);
Stream data = null;
try
{
// as the camera always takes a snapshot in landscape left orientation,
// we need to rotate the resulting image 90 degrees for a current PortraitUp orientation
// and 180 degrees for a current LandscapeRight orientation
int rotateAngle = 0;
if (currentPage.Orientation == PageOrientation.PortraitUp)
{
rotateAngle = 90;
}
else if (currentPage.Orientation == PageOrientation.LandscapeRight)
{
rotateAngle = 180;
}
// if the current page is in a LandscapeLeft orientation, the orientation angle will be 0
data = RotateImage(args.ImageStream, rotateAngle);
}
catch
{
// the orientation angle was not a multiple of 90 - we keep the original image
data = args.ImageStream;
}
MemoryStream dataMem = new MemoryStream((int)data.Length);
MoSync.Util.CopySeekableStreams(data, 0, dataMem, 0, (int)data.Length);
res.SetInternalObject(dataMem);
});
are.Set();
};
mCamera.CaptureImageAvailable += mCameraSnapshotDelegate;
mCamera.CaptureImage();
are.WaitOne();
return MoSync.Constants.MA_CAMERA_RES_OK;
};
/**
* Captures an image and stores it as a new data object in new
* placeholder that is sent via #EVENT_TYPE_CAMERA_SNAPSHOT event.
* @param _formatIndex int the required format index (size index).
*/
ioctls.maCameraSnapshotAsync = delegate(int _formatIndex)
{
System.Windows.Size dim;
if (GetCameraFormat(_formatIndex, out dim) == false)
{
return MoSync.Constants.MA_CAMERA_RES_FAILED;
}
mCamera.Resolution = dim;
if (mCameraSnapshotDelegate != null)
{
mCamera.CaptureImageAvailable -= mCameraSnapshotDelegate;
}
mCameraSnapshotDelegate = delegate(object o, ContentReadyEventArgs args)
{
MoSync.Util.RunActionOnMainThreadSync(() =>
{
Stream data = null;
try
{
// as the camera always takes a snapshot in landscape left orientation,
// we need to rotate the resulting image 90 degrees for a current PortraitUp orientation
// and 180 degrees for a current LandscapeRight orientation
int rotateAngle = 0;
if (currentPage.Orientation == PageOrientation.PortraitUp)
{
rotateAngle = 90;
}
else if (currentPage.Orientation == PageOrientation.LandscapeRight)
{
rotateAngle = 180;
}
// if the current page is in a LandscapeLeft orientation, the orientation angle will be 0
data = RotateImage(args.ImageStream, rotateAngle);
}
catch
{
// the orientation angle was not a multiple of 90 - we keep the original image
data = args.ImageStream;
}
MemoryStream dataMem = new MemoryStream((int)data.Length);
MoSync.Util.CopySeekableStreams(data, 0, dataMem, 0, (int)data.Length);
Memory eventData = new Memory(20);
const int MAEventData_eventType = 0;
const int MAEventData_snapshotImageDataHandle = 4;
const int MAEventData_snapshotFormatIndex = 8;
const int MAEventData_snapshotImageDataRepresentation = 12;
const int MAEventData_snapshotReturnCode = 16;
eventData.WriteInt32(MAEventData_eventType, MoSync.Constants.EVENT_TYPE_CAMERA_SNAPSHOT);
// Create new place holder.
eventData.WriteInt32(MAEventData_snapshotImageDataHandle, runtime.AddResource(
new Resource(dataMem, MoSync.Constants.RT_BINARY, true)));
eventData.WriteInt32(MAEventData_snapshotFormatIndex, _formatIndex);
eventData.WriteInt32(MAEventData_snapshotImageDataRepresentation, MoSync.Constants.MA_IMAGE_REPRESENTATION_RAW);
eventData.WriteInt32(MAEventData_snapshotReturnCode, MoSync.Constants.MA_CAMERA_RES_OK);
runtime.PostEvent(new Event(eventData));
});
};
mCamera.CaptureImageAvailable += mCameraSnapshotDelegate;
mCamera.CaptureImage();
return MoSync.Constants.MA_CAMERA_RES_OK;
};
/**
* Sets the property represented by the string situated at the
* _property address with the value situated at the _value address.
* @param _property int the property name address
* @param _value int the value address
*
* Note: the fallowing properties are not available on windows phone
* MA_CAMERA_FOCUS_MODE, MA_CAMERA_IMAGE_FORMAT, MA_CAMERA_ZOOM,
* MA_CAMERA_MAX_ZOOM.
*/
ioctls.maCameraSetProperty = delegate(int _property, int _value)
{
// if the camera is not initialized, we cannot access any of its properties
if (!isCameraInitialized)
{
return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
}
String property = core.GetDataMemory().ReadStringAtAddress(_property);
String value = core.GetDataMemory().ReadStringAtAddress(_value);
if (property.Equals(MoSync.Constants.MA_CAMERA_FLASH_MODE))
{
if (value.Equals(MoSync.Constants.MA_CAMERA_FLASH_ON))
{
mCamera.FlashMode = FlashMode.On;
mFlashMode = FlashMode.On;
}
else if (value.Equals(MoSync.Constants.MA_CAMERA_FLASH_OFF))
{
mCamera.FlashMode = FlashMode.Off;
mFlashMode = FlashMode.Off;
}
else if (value.Equals(MoSync.Constants.MA_CAMERA_FLASH_AUTO))
{
mCamera.FlashMode = FlashMode.Auto;
mFlashMode = FlashMode.Auto;
}
else return MoSync.Constants.MA_CAMERA_RES_INVALID_PROPERTY_VALUE;
return MoSync.Constants.MA_CAMERA_RES_OK;
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_FOCUS_MODE))
{
return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_IMAGE_FORMAT))
{
return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_ZOOM))
{
return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_MAX_ZOOM))
{
return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
}
else return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
};
/**
* Selects a camera from the avalable ones;
* in this eigther the back or the front camera is
* chosen
*/
ioctls.maCameraSelect = delegate(int _camera)
{
// if the camera is not initialized, we cannot access any of its properties
if (!isCameraInitialized)
{
return MoSync.Constants.MA_CAMERA_RES_FAILED;
}
if ( MoSync.Constants.MA_CAMERA_CONST_BACK_CAMERA == _camera)
{
if (mCamera.CameraType != CameraType.Primary)
{
mCameraType = CameraType.Primary;
InitCamera();
}
}
else if (MoSync.Constants.MA_CAMERA_CONST_FRONT_CAMERA == _camera)
{
if (mCamera.CameraType != CameraType.FrontFacing)
{
mCameraType = CameraType.FrontFacing;
InitCamera();
MoSync.Util.RunActionOnMainThreadSync(() =>
{
SetInitialCameraOrientation(currentPage);
}
);
}
}
else return MoSync.Constants.MA_CAMERA_RES_FAILED;
return MoSync.Constants.MA_CAMERA_RES_OK;
};
/**
* Retrieves the specified property value in the given buffer.
* @param _property int the address for the property string
* @param _value int the address for the property value string (the buffer)
* @param _bufSize int the buffer size
*/
ioctls.maCameraGetProperty = delegate(int _property, int _value, int _bufSize)
{
String property = core.GetDataMemory().ReadStringAtAddress(_property);
if (property.Equals(MoSync.Constants.MA_CAMERA_MAX_ZOOM))
{
core.GetDataMemory().WriteStringAtAddress(
_value,
"0",
_bufSize);
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_ZOOM_SUPPORTED))
{
core.GetDataMemory().WriteStringAtAddress(
_value,
"false",
_bufSize);
}
else if (property.Equals(MoSync.Constants.MA_CAMERA_FLASH_SUPPORTED))
{
core.GetDataMemory().WriteStringAtAddress(
_value,
"true",
_bufSize);
}
else return MoSync.Constants.MA_CAMERA_RES_PROPERTY_NOTSUPPORTED;
return 0;
};
ioctls.maCameraRecord = delegate(int _stopStartFlag)
{
return MoSync.Constants.MA_CAMERA_RES_FAILED;
};
}
