public static void ParseActions(byte[] actions, int id, out SlamObservation observation)
{
int offset = 0;
var covisible = new List <SlamObservation.CovisibleInfo>();
observation = new SlamObservation(covisible)
{
Orientation = Quaternion.identity,
};
SlamPoint obsPoint = observation;
obsPoint.id = id;
obsPoint.color = Color.gray;
while (offset != actions.Length)
{
Debug.Assert(offset <= actions.Length, $"[SlamObservationPackageObject.ParseActions] offset ({offset}) out of range");
ActionType type = (ActionType)actions[offset++];
if (type == ActionType.Create)
{
obsPoint.isNew = true;
}
if (type == ActionType.Create || type == ActionType.Move)
{
obsPoint.position = BitConverterEx.ToVector3(actions, offset, ref offset);
observation.Orientation = BitConverterEx.ToQuaternion(actions, offset, ref offset);
}
if (type == ActionType.Tint)
{
obsPoint.color = BitConverterEx.ToRGBColor32(actions, offset, ref offset);
}
if (type == ActionType.Remove)
{
obsPoint.color = Color.red;
obsPoint.isRemoved = true;
}
if (type == ActionType.Connect)
{
covisible.Add(
new SlamObservation.CovisibleInfo()
{
id = BitConverterEx.ToInt32(actions, offset, ref offset),
sharedPointsCount = BitConverterEx.ToInt32(actions, offset, ref offset)
});
}
if (type == ActionType.Message)
{
int countOfMsgBytes = BitConverterEx.ToInt32(actions, offset, ref offset);
if (countOfMsgBytes >= MAX_MESSAGE_LENGTH_IN_BYTES)
{
throw new Exception();
}
obsPoint.message = countOfMsgBytes > 0 ? Encoding.ASCII.GetString(actions, offset, countOfMsgBytes) : "";
offset += sizeof(byte) * MAX_MESSAGE_LENGTH_IN_BYTES;
}
}
observation.Point = obsPoint;
}
/// <summary>
/// Creates an ExifProperty from the given interoperability parameters.
/// </summary>
/// <param name="tag">The tag id of the exif property.</param>
/// <param name="type">The type id of the exif property.</param>
/// <param name="count">Byte or component count.</param>
/// <param name="value">Field data as an array of bytes.</param>
/// <param name="byteOrder">Byte order of value.</param>
/// <param name="ifd">IFD section containing this property.</param>
/// <param name="encoding">The encoding to be used for text metadata when the source encoding is unknown.</param>
/// <returns>an ExifProperty initialized from the interoperability parameters.</returns>
public static ExifProperty Get(ushort tag, ushort type, uint count, byte[] value, BitConverterEx.ByteOrder byteOrder, IFD ifd, Encoding encoding)
{
var conv = new BitConverterEx(byteOrder, BitConverterEx.SystemByteOrder);
// Find the exif tag corresponding to given tag id
ExifTag etag = ExifTagFactory.GetExifTag(ifd, tag);
if (ifd == IFD.Zeroth)
{
// Compression
if (tag == 0x103)
{
return(new ExifEnumProperty <Compression>(ExifTag.Compression, (Compression)conv.ToUInt16(value, 0)));
}
// PhotometricInterpretation
if (tag == 0x106)
{
return(new ExifEnumProperty <PhotometricInterpretation>(
ExifTag.PhotometricInterpretation,
(PhotometricInterpretation)conv.ToUInt16(value, 0)));
}
// Orientation
if (tag == 0x112)
{
return(new ExifEnumProperty <Orientation>(ExifTag.Orientation, (Orientation)conv.ToUInt16(value, 0)));
}
// PlanarConfiguration
if (tag == 0x11c)
{
return(new ExifEnumProperty <PlanarConfiguration>(
ExifTag.PlanarConfiguration,
(PlanarConfiguration)conv.ToUInt16(value, 0)));
}
// YCbCrPositioning
if (tag == 0x213)
{
return(new ExifEnumProperty <YCbCrPositioning>(
ExifTag.YCbCrPositioning,
(YCbCrPositioning)conv.ToUInt16(value, 0)));
}
// ResolutionUnit
if (tag == 0x128)
{
return(new ExifEnumProperty <ResolutionUnit>(
ExifTag.ResolutionUnit,
(ResolutionUnit)conv.ToUInt16(value, 0)));
}
// DateTime
if (tag == 0x132)
{
return(new ExifDateTime(ExifTag.DateTime, ExifBitConverter.ToDateTime(value)));
}
if (tag == 0x9c9b || tag == 0x9c9c || // Windows tags
tag == 0x9c9d || tag == 0x9c9e || tag == 0x9c9f)
{
return(new WindowsByteString(
etag,
Encoding.Unicode.GetString(value).TrimEnd(Constants.CharArrays.NullTerminator)));
}
}
else if (ifd == IFD.EXIF)
{
// ExifVersion
if (tag == 0x9000)
{
return(new ExifVersion(ExifTag.ExifVersion, ExifBitConverter.ToAscii(value, Encoding.ASCII)));
}
// FlashpixVersion
if (tag == 0xa000)
{
return(new ExifVersion(ExifTag.FlashpixVersion, ExifBitConverter.ToAscii(value, Encoding.ASCII)));
}
// ColorSpace
if (tag == 0xa001)
{
return(new ExifEnumProperty <ColorSpace>(ExifTag.ColorSpace, (ColorSpace)conv.ToUInt16(value, 0)));
}
// UserComment
if (tag == 0x9286)
{
// Default to ASCII
Encoding enc = Encoding.ASCII;
bool hasenc;
if (value.Length < 8)
{
hasenc = false;
}
else
{
hasenc = true;
var encstr = enc.GetString(value, 0, 8);
if (string.Compare(encstr, "ASCII\0\0\0", StringComparison.OrdinalIgnoreCase) == 0)
{
enc = Encoding.ASCII;
}
else if (string.Compare(encstr, "JIS\0\0\0\0\0", StringComparison.OrdinalIgnoreCase) == 0)
{
enc = Encoding.GetEncoding("Japanese (JIS 0208-1990 and 0212-1990)");
}
else if (string.Compare(encstr, "Unicode\0", StringComparison.OrdinalIgnoreCase) == 0)
{
enc = Encoding.Unicode;
}
else
{
hasenc = false;
}
}
var val = (hasenc ? enc.GetString(value, 8, value.Length - 8) : enc.GetString(value)).Trim(
Constants.CharArrays.NullTerminator);
return(new ExifEncodedString(ExifTag.UserComment, val, enc));
}
// DateTimeOriginal
if (tag == 0x9003)
{
return(new ExifDateTime(ExifTag.DateTimeOriginal, ExifBitConverter.ToDateTime(value)));
}
// DateTimeDigitized
if (tag == 0x9004)
{
return(new ExifDateTime(ExifTag.DateTimeDigitized, ExifBitConverter.ToDateTime(value)));
}
// ExposureProgram
if (tag == 0x8822)
{
return(new ExifEnumProperty <ExposureProgram>(
ExifTag.ExposureProgram,
(ExposureProgram)conv.ToUInt16(value, 0)));
}
// MeteringMode
if (tag == 0x9207)
{
return(new ExifEnumProperty <MeteringMode>(ExifTag.MeteringMode, (MeteringMode)conv.ToUInt16(value, 0)));
}
// LightSource
if (tag == 0x9208)
{
return(new ExifEnumProperty <LightSource>(ExifTag.LightSource, (LightSource)conv.ToUInt16(value, 0)));
}
// Flash
if (tag == 0x9209)
{
return(new ExifEnumProperty <Flash>(ExifTag.Flash, (Flash)conv.ToUInt16(value, 0), true));
}
// SubjectArea
if (tag == 0x9214)
{
if (count == 3)
{
return(new ExifCircularSubjectArea(
ExifTag.SubjectArea,
ExifBitConverter.ToUShortArray(value, (int)count, byteOrder)));
}
if (count == 4)
{
return(new ExifRectangularSubjectArea(
ExifTag.SubjectArea,
ExifBitConverter.ToUShortArray(value, (int)count, byteOrder)));
}
return(new ExifPointSubjectArea(
ExifTag.SubjectArea,
ExifBitConverter.ToUShortArray(value, (int)count, byteOrder)));
}
// FocalPlaneResolutionUnit
if (tag == 0xa210)
{
return(new ExifEnumProperty <ResolutionUnit>(
ExifTag.FocalPlaneResolutionUnit,
(ResolutionUnit)conv.ToUInt16(value, 0),
true));
}
// SubjectLocation
if (tag == 0xa214)
{
return(new ExifPointSubjectArea(
ExifTag.SubjectLocation,
ExifBitConverter.ToUShortArray(value, (int)count, byteOrder)));
}
// SensingMethod
if (tag == 0xa217)
{
return(new ExifEnumProperty <SensingMethod>(
ExifTag.SensingMethod,
(SensingMethod)conv.ToUInt16(value, 0),
true));
}
// FileSource
if (tag == 0xa300)
{
return(new ExifEnumProperty <FileSource>(ExifTag.FileSource, (FileSource)conv.ToUInt16(value, 0), true));
}
// SceneType
if (tag == 0xa301)
{
return(new ExifEnumProperty <SceneType>(ExifTag.SceneType, (SceneType)conv.ToUInt16(value, 0), true));
}
// CustomRendered
if (tag == 0xa401)
{
return(new ExifEnumProperty <CustomRendered>(
ExifTag.CustomRendered,
(CustomRendered)conv.ToUInt16(value, 0),
true));
}
// ExposureMode
if (tag == 0xa402)
{
return(new ExifEnumProperty <ExposureMode>(ExifTag.ExposureMode, (ExposureMode)conv.ToUInt16(value, 0), true));
}
// WhiteBalance
if (tag == 0xa403)
{
return(new ExifEnumProperty <WhiteBalance>(ExifTag.WhiteBalance, (WhiteBalance)conv.ToUInt16(value, 0), true));
}
// SceneCaptureType
if (tag == 0xa406)
{
return(new ExifEnumProperty <SceneCaptureType>(
ExifTag.SceneCaptureType,
(SceneCaptureType)conv.ToUInt16(value, 0),
true));
}
// GainControl
if (tag == 0xa407)
{
return(new ExifEnumProperty <GainControl>(ExifTag.GainControl, (GainControl)conv.ToUInt16(value, 0), true));
}
// Contrast
if (tag == 0xa408)
{
return(new ExifEnumProperty <Contrast>(ExifTag.Contrast, (Contrast)conv.ToUInt16(value, 0), true));
}
// Saturation
if (tag == 0xa409)
{
return(new ExifEnumProperty <Saturation>(ExifTag.Saturation, (Saturation)conv.ToUInt16(value, 0), true));
}
// Sharpness
if (tag == 0xa40a)
{
return(new ExifEnumProperty <Sharpness>(ExifTag.Sharpness, (Sharpness)conv.ToUInt16(value, 0), true));
}
// SubjectDistanceRange
if (tag == 0xa40c)
{
return(new ExifEnumProperty <SubjectDistanceRange>(
ExifTag.SubjectDistanceRange,
(SubjectDistanceRange)conv.ToUInt16(value, 0),
true));
}
}
else if (ifd == IFD.GPS)
{
// GPSVersionID
if (tag == 0)
{
return(new ExifVersion(ExifTag.GPSVersionID, ExifBitConverter.ToString(value)));
}
// GPSLatitudeRef
if (tag == 1)
{
return(new ExifEnumProperty <GPSLatitudeRef>(ExifTag.GPSLatitudeRef, (GPSLatitudeRef)value[0]));
}
// GPSLatitude
if (tag == 2)
{
return(new GPSLatitudeLongitude(
ExifTag.GPSLatitude,
ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
// GPSLongitudeRef
if (tag == 3)
{
return(new ExifEnumProperty <GPSLongitudeRef>(ExifTag.GPSLongitudeRef, (GPSLongitudeRef)value[0]));
}
// GPSLongitude
if (tag == 4)
{
return(new GPSLatitudeLongitude(
ExifTag.GPSLongitude,
ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
// GPSAltitudeRef
if (tag == 5)
{
return(new ExifEnumProperty <GPSAltitudeRef>(ExifTag.GPSAltitudeRef, (GPSAltitudeRef)value[0]));
}
// GPSTimeStamp
if (tag == 7)
{
return(new GPSTimeStamp(
ExifTag.GPSTimeStamp,
ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
// GPSStatus
if (tag == 9)
{
return(new ExifEnumProperty <GPSStatus>(ExifTag.GPSStatus, (GPSStatus)value[0]));
}
// GPSMeasureMode
if (tag == 10)
{
return(new ExifEnumProperty <GPSMeasureMode>(ExifTag.GPSMeasureMode, (GPSMeasureMode)value[0]));
}
// GPSSpeedRef
if (tag == 12)
{
return(new ExifEnumProperty <GPSSpeedRef>(ExifTag.GPSSpeedRef, (GPSSpeedRef)value[0]));
}
// GPSTrackRef
if (tag == 14)
{
return(new ExifEnumProperty <GPSDirectionRef>(ExifTag.GPSTrackRef, (GPSDirectionRef)value[0]));
}
// GPSImgDirectionRef
if (tag == 16)
{
return(new ExifEnumProperty <GPSDirectionRef>(ExifTag.GPSImgDirectionRef, (GPSDirectionRef)value[0]));
}
// GPSDestLatitudeRef
if (tag == 19)
{
return(new ExifEnumProperty <GPSLatitudeRef>(ExifTag.GPSDestLatitudeRef, (GPSLatitudeRef)value[0]));
}
// GPSDestLatitude
if (tag == 20)
{
return(new GPSLatitudeLongitude(
ExifTag.GPSDestLatitude,
ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
// GPSDestLongitudeRef
if (tag == 21)
{
return(new ExifEnumProperty <GPSLongitudeRef>(ExifTag.GPSDestLongitudeRef, (GPSLongitudeRef)value[0]));
}
// GPSDestLongitude
if (tag == 22)
{
return(new GPSLatitudeLongitude(
ExifTag.GPSDestLongitude,
ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
// GPSDestBearingRef
if (tag == 23)
{
return(new ExifEnumProperty <GPSDirectionRef>(ExifTag.GPSDestBearingRef, (GPSDirectionRef)value[0]));
}
// GPSDestDistanceRef
if (tag == 25)
{
return(new ExifEnumProperty <GPSDistanceRef>(ExifTag.GPSDestDistanceRef, (GPSDistanceRef)value[0]));
}
// GPSDate
if (tag == 29)
{
return(new ExifDateTime(ExifTag.GPSDateStamp, ExifBitConverter.ToDateTime(value, false)));
}
// GPSDifferential
if (tag == 30)
{
return(new ExifEnumProperty <GPSDifferential>(
ExifTag.GPSDifferential,
(GPSDifferential)conv.ToUInt16(value, 0)));
}
}
else if (ifd == IFD.Interop)
{
// InteroperabilityIndex
if (tag == 1)
{
return(new ExifAscii(ExifTag.InteroperabilityIndex, ExifBitConverter.ToAscii(value, Encoding.ASCII), Encoding.ASCII));
}
// InteroperabilityVersion
if (tag == 2)
{
return(new ExifVersion(
ExifTag.InteroperabilityVersion,
ExifBitConverter.ToAscii(value, Encoding.ASCII)));
}
}
else if (ifd == IFD.First)
{
// Compression
if (tag == 0x103)
{
return(new ExifEnumProperty <Compression>(
ExifTag.ThumbnailCompression,
(Compression)conv.ToUInt16(value, 0)));
}
// PhotometricInterpretation
if (tag == 0x106)
{
return(new ExifEnumProperty <PhotometricInterpretation>(
ExifTag.ThumbnailPhotometricInterpretation,
(PhotometricInterpretation)conv.ToUInt16(value, 0)));
}
// Orientation
if (tag == 0x112)
{
return(new ExifEnumProperty <Orientation>(
ExifTag.ThumbnailOrientation,
(Orientation)conv.ToUInt16(value, 0)));
}
// PlanarConfiguration
if (tag == 0x11c)
{
return(new ExifEnumProperty <PlanarConfiguration>(
ExifTag.ThumbnailPlanarConfiguration,
(PlanarConfiguration)conv.ToUInt16(value, 0)));
}
// YCbCrPositioning
if (tag == 0x213)
{
return(new ExifEnumProperty <YCbCrPositioning>(
ExifTag.ThumbnailYCbCrPositioning,
(YCbCrPositioning)conv.ToUInt16(value, 0)));
}
// ResolutionUnit
if (tag == 0x128)
{
return(new ExifEnumProperty <ResolutionUnit>(
ExifTag.ThumbnailResolutionUnit,
(ResolutionUnit)conv.ToUInt16(value, 0)));
}
// DateTime
if (tag == 0x132)
{
return(new ExifDateTime(ExifTag.ThumbnailDateTime, ExifBitConverter.ToDateTime(value)));
}
}
// 1 = BYTE An 8-bit unsigned integer.
if (type == 1)
{
if (count == 1)
{
return(new ExifByte(etag, value[0]));
}
return(new ExifByteArray(etag, value));
}
// 2 = ASCII An 8-bit byte containing one 7-bit ASCII code.
if (type == 2)
{
return(new ExifAscii(etag, ExifBitConverter.ToAscii(value, encoding), encoding));
}
// 3 = SHORT A 16-bit (2-byte) unsigned integer.
if (type == 3)
{
if (count == 1)
{
return(new ExifUShort(etag, conv.ToUInt16(value, 0)));
}
return(new ExifUShortArray(etag, ExifBitConverter.ToUShortArray(value, (int)count, byteOrder)));
}
// 4 = LONG A 32-bit (4-byte) unsigned integer.
if (type == 4)
{
if (count == 1)
{
return(new ExifUInt(etag, conv.ToUInt32(value, 0)));
}
return(new ExifUIntArray(etag, ExifBitConverter.ToUIntArray(value, (int)count, byteOrder)));
}
// 5 = RATIONAL Two LONGs. The first LONG is the numerator and the second LONG expresses the denominator.
if (type == 5)
{
if (count == 1)
{
return(new ExifURational(etag, ExifBitConverter.ToURational(value, byteOrder)));
}
return(new ExifURationalArray(etag, ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
// 7 = UNDEFINED An 8-bit byte that can take any value depending on the field definition.
if (type == 7)
{
return(new ExifUndefined(etag, value));
}
// 9 = SLONG A 32-bit (4-byte) signed integer (2's complement notation).
if (type == 9)
{
if (count == 1)
{
return(new ExifSInt(etag, conv.ToInt32(value, 0)));
}
return(new ExifSIntArray(etag, ExifBitConverter.ToSIntArray(value, (int)count, byteOrder)));
}
// 10 = SRATIONAL Two SLONGs. The first SLONG is the numerator and the second SLONG is the denominator.
if (type == 10)
{
if (count == 1)
{
return(new ExifSRational(etag, ExifBitConverter.ToSRational(value, byteOrder)));
}
return(new ExifSRationalArray(etag, ExifBitConverter.ToSRationalArray(value, (int)count, byteOrder)));
}
throw new ArgumentException("Unknown property type.");
}
public static void ParseActions(byte[] actions, int id, out SlamPoint point, out SlamLine?fuse)
{
int offset = 0;
point = new SlamPoint();
fuse = null;
point.id = id;
bool wasMoved = false;
while (offset != actions.Length)
{
Debug.AssertFormat(offset <= actions.Length, "[SlamPointsPackageObject.ParseActions] offset ({0}) out of range", offset);
ActionType type = (ActionType)actions[offset++];
if (type == ActionType.Create || type == ActionType.Move)
{
point.position = BitConverterEx.ToVector3(actions, offset, ref offset);
wasMoved = true;
}
if (type == ActionType.Create)
{
point.isNew = true;
point.defaultColor = BitConverterEx.ToRGBColor32(actions, offset, ref offset);
point.color = Color.blue;
}
if (type == ActionType.Tint)
{
point.color = BitConverterEx.ToRGBColor32(actions, offset, ref offset);
point.justColored = !wasMoved;
}
if (type == ActionType.Remove)
{
point.color = Color.red;
point.isRemoved = true;
}
if (type == ActionType.Fuse)
{
point.color = Color.magenta;
SlamLine fuseLine = new SlamLine()
{
pointId1 = point.id,
pointId2 = BitConverterEx.ToInt32(actions, offset, ref offset),
color1 = BitConverterEx.ToRGBColor32(actions, offset, ref offset),
color2 = BitConverterEx.ToRGBColor32(actions, offset, ref offset),
isRemoved = true,
};
if (fuseLine.pointId1 != -1 && fuseLine.pointId2 != -1)
{
fuse = fuseLine;
}
}
if (type == ActionType.Message)
{
int countOfMsgBytes = BitConverterEx.ToInt32(actions, offset, ref offset);
if (countOfMsgBytes >= MAX_MESSAGE_LENGTH_IN_BYTES)
{
throw new Exception();
}
point.message = countOfMsgBytes > 0 ? Encoding.ASCII.GetString(actions, offset, countOfMsgBytes) : "";
offset += sizeof(byte) * MAX_MESSAGE_LENGTH_IN_BYTES;
}
}
}
/// <summary>
/// Creates an ExifProperty from the given interoperability parameters.
/// </summary>
/// <param name="tag">The tag id of the exif property.</param>
/// <param name="type">The type id of the exif property.</param>
/// <param name="count">Byte or component count.</param>
/// <param name="value">Field data as an array of bytes.</param>
/// <param name="byteOrder">Byte order of value.</param>
/// <param name="ifd">IFD section containing this propery.</param>
/// <returns>an ExifProperty initialized from the interoperability parameters.</returns>
public static ExifProperty Get(ushort tag, ushort type, uint count, byte[] value, BitConverterEx.ByteOrder byteOrder, IFD ifd)
{
BitConverterEx conv = new BitConverterEx(byteOrder, BitConverterEx.ByteOrder.System);
if (ifd == IFD.Zeroth)
{
if (tag == 0x103) // Compression
{
return(new ExifEnumProperty <Compression>(ExifTag.Compression, (Compression)conv.ToUInt16(value, 0)));
}
else if (tag == 0x106) // PhotometricInterpretation
{
return(new ExifEnumProperty <PhotometricInterpretation>(ExifTag.PhotometricInterpretation, (PhotometricInterpretation)conv.ToUInt16(value, 0)));
}
else if (tag == 0x112) // Orientation
{
return(new ExifEnumProperty <Orientation>(ExifTag.Orientation, (Orientation)conv.ToUInt16(value, 0)));
}
else if (tag == 0x11c) // PlanarConfiguration
{
return(new ExifEnumProperty <PlanarConfiguration>(ExifTag.PlanarConfiguration, (PlanarConfiguration)conv.ToUInt16(value, 0)));
}
else if (tag == 0x213) // YCbCrPositioning
{
return(new ExifEnumProperty <YCbCrPositioning>(ExifTag.YCbCrPositioning, (YCbCrPositioning)conv.ToUInt16(value, 0)));
}
else if (tag == 0x128) // ResolutionUnit
{
return(new ExifEnumProperty <ResolutionUnit>(ExifTag.ResolutionUnit, (ResolutionUnit)conv.ToUInt16(value, 0)));
}
else if (tag == 0x132) // DateTime
{
return(new ExifDateTime(ExifTag.DateTime, ExifBitConverter.ToDateTime(value)));
}
}
else if (ifd == IFD.EXIF)
{
if (tag == 0x9000) // ExifVersion
{
return(new ExifVersion(ExifTag.ExifVersion, ExifBitConverter.ToAscii(value)));
}
else if (tag == 0xa000) // FlashpixVersion
{
return(new ExifVersion(ExifTag.FlashpixVersion, ExifBitConverter.ToAscii(value)));
}
else if (tag == 0xa001) // ColorSpace
{
return(new ExifEnumProperty <ColorSpace>(ExifTag.ColorSpace, (ColorSpace)conv.ToUInt16(value, 0)));
}
else if (tag == 0x9286) // UserComment
{
byte[] encbytes = new byte[8];
byte[] strbytes = new byte[value.Length - 8];
Array.Copy(value, encbytes, 8);
Array.Copy(value, 8, strbytes, 0, value.Length - 8);
Encoding enc = Encoding.ASCII;
string encstr = enc.GetString(encbytes);
if (encstr == "ASCII\0\0\0")
{
enc = Encoding.ASCII;
}
else if (encstr == "JIS\0\0\0\0\0")
{
enc = Encoding.GetEncoding("Japanese (JIS 0208-1990 and 0212-1990)");
}
else if (encstr == "Unicode\0")
{
enc = Encoding.Unicode;
}
else
{
enc = null;
}
int len = Array.IndexOf(strbytes, (byte)0);
if (len == -1)
{
len = strbytes.Length;
}
return(new ExifEncodedString(ExifTag.UserComment, (enc == null ? Encoding.ASCII.GetString(strbytes, 0, len) : enc.GetString(strbytes, 0, len)), enc));
}
else if (tag == 0x9003) // DateTimeOriginal
{
return(new ExifDateTime(ExifTag.DateTimeOriginal, ExifBitConverter.ToDateTime(value)));
}
else if (tag == 0x9004) // DateTimeDigitized
{
return(new ExifDateTime(ExifTag.DateTimeDigitized, ExifBitConverter.ToDateTime(value)));
}
else if (tag == 0x8822) // ExposureProgram
{
return(new ExifEnumProperty <ExposureProgram>(ExifTag.ExposureProgram, (ExposureProgram)conv.ToUInt16(value, 0)));
}
else if (tag == 0x9207) // MeteringMode
{
return(new ExifEnumProperty <MeteringMode>(ExifTag.MeteringMode, (MeteringMode)conv.ToUInt16(value, 0)));
}
else if (tag == 0x9208) // LightSource
{
return(new ExifEnumProperty <LightSource>(ExifTag.LightSource, (LightSource)conv.ToUInt16(value, 0)));
}
else if (tag == 0x9209) // Flash
{
return(new ExifEnumProperty <Flash>(ExifTag.Flash, (Flash)conv.ToUInt16(value, 0), true));
}
else if (tag == 0x9214) // SubjectArea
{
if (count == 3)
{
return(new ExifCircularSubjectArea(ExifTag.SubjectArea, ExifBitConverter.ToUShortArray(value, (int)count, byteOrder)));
}
else if (count == 4)
{
return(new ExifRectangularSubjectArea(ExifTag.SubjectArea, ExifBitConverter.ToUShortArray(value, (int)count, byteOrder)));
}
else // count == 2
{
return(new ExifPointSubjectArea(ExifTag.SubjectArea, ExifBitConverter.ToUShortArray(value, (int)count, byteOrder)));
}
}
else if (tag == 0xa210) // FocalPlaneResolutionUnit
{
return(new ExifEnumProperty <ResolutionUnit>(ExifTag.FocalPlaneResolutionUnit, (ResolutionUnit)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa214) // SubjectLocation
{
return(new ExifPointSubjectArea(ExifTag.SubjectLocation, ExifBitConverter.ToUShortArray(value, (int)count, byteOrder)));
}
else if (tag == 0xa217) // SensingMethod
{
return(new ExifEnumProperty <SensingMethod>(ExifTag.SensingMethod, (SensingMethod)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa300) // FileSource
{
return(new ExifEnumProperty <FileSource>(ExifTag.FileSource, (FileSource)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa301) // SceneType
{
return(new ExifEnumProperty <SceneType>(ExifTag.SceneType, (SceneType)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa401) // CustomRendered
{
return(new ExifEnumProperty <CustomRendered>(ExifTag.CustomRendered, (CustomRendered)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa402) // ExposureMode
{
return(new ExifEnumProperty <ExposureMode>(ExifTag.ExposureMode, (ExposureMode)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa403) // WhiteBalance
{
return(new ExifEnumProperty <WhiteBalance>(ExifTag.WhiteBalance, (WhiteBalance)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa406) // SceneCaptureType
{
return(new ExifEnumProperty <SceneCaptureType>(ExifTag.SceneCaptureType, (SceneCaptureType)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa407) // GainControl
{
return(new ExifEnumProperty <GainControl>(ExifTag.GainControl, (GainControl)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa408) // Contrast
{
return(new ExifEnumProperty <Contrast>(ExifTag.Contrast, (Contrast)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa409) // Saturation
{
return(new ExifEnumProperty <Saturation>(ExifTag.Saturation, (Saturation)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa40a) // Sharpness
{
return(new ExifEnumProperty <Sharpness>(ExifTag.Sharpness, (Sharpness)conv.ToUInt16(value, 0), true));
}
else if (tag == 0xa40c) // SubjectDistanceRange
{
return(new ExifEnumProperty <SubjectDistanceRange>(ExifTag.SubjectDistance, (SubjectDistanceRange)conv.ToUInt16(value, 0), true));
}
}
else if (ifd == IFD.GPS)
{
if (tag == 0) // GPSVersionID
{
return(new ExifVersion(ExifTag.GPSVersionID, ExifBitConverter.ToString(value)));
}
else if (tag == 1) // GPSLatitudeRef
{
return(new ExifEnumProperty <GPSLatitudeRef>(ExifTag.GPSLatitudeRef, (GPSLatitudeRef)value[0]));
}
else if (tag == 2) // GPSLatitude
{
return(new GPSLatitudeLongitude(ExifTag.GPSLatitude, ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
else if (tag == 3) // GPSLongitudeRef
{
return(new ExifEnumProperty <GPSLongitudeRef>(ExifTag.GPSLongitudeRef, (GPSLongitudeRef)value[0]));
}
else if (tag == 4) // GPSLongitude
{
return(new GPSLatitudeLongitude(ExifTag.GPSLongitude, ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
else if (tag == 5) // GPSAltitudeRef
{
return(new ExifEnumProperty <GPSAltitudeRef>(ExifTag.GPSAltitudeRef, (GPSAltitudeRef)value[0]));
}
else if (tag == 7) // GPSTimeStamp
{
return(new GPSTimeStamp(ExifTag.GPSTimeStamp, ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
else if (tag == 9) // GPSStatus
{
return(new ExifEnumProperty <GPSStatus>(ExifTag.GPSStatus, (GPSStatus)value[0]));
}
else if (tag == 10) // GPSMeasureMode
{
return(new ExifEnumProperty <GPSMeasureMode>(ExifTag.GPSMeasureMode, (GPSMeasureMode)value[0]));
}
else if (tag == 12) // GPSSpeedRef
{
return(new ExifEnumProperty <GPSSpeedRef>(ExifTag.GPSSpeedRef, (GPSSpeedRef)value[0]));
}
else if (tag == 14) // GPSTrackRef
{
return(new ExifEnumProperty <GPSDirectionRef>(ExifTag.GPSTrackRef, (GPSDirectionRef)value[0]));
}
else if (tag == 16) // GPSImgDirectionRef
{
return(new ExifEnumProperty <GPSDirectionRef>(ExifTag.GPSImgDirectionRef, (GPSDirectionRef)value[0]));
}
else if (tag == 19) // GPSDestLatitudeRef
{
return(new ExifEnumProperty <GPSLatitudeRef>(ExifTag.GPSDestLatitudeRef, (GPSLatitudeRef)value[0]));
}
else if (tag == 20) // GPSDestLatitude
{
return(new GPSLatitudeLongitude(ExifTag.GPSDestLatitude, ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
else if (tag == 21) // GPSDestLongitudeRef
{
return(new ExifEnumProperty <GPSLongitudeRef>(ExifTag.GPSDestLongitudeRef, (GPSLongitudeRef)value[0]));
}
else if (tag == 22) // GPSDestLongitude
{
return(new GPSLatitudeLongitude(ExifTag.GPSDestLongitude, ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
else if (tag == 23) // GPSDestBearingRef
{
return(new ExifEnumProperty <GPSDirectionRef>(ExifTag.GPSDestBearingRef, (GPSDirectionRef)value[0]));
}
else if (tag == 25) // GPSDestDistanceRef
{
return(new ExifEnumProperty <GPSDistanceRef>(ExifTag.GPSDestDistanceRef, (GPSDistanceRef)value[0]));
}
else if (tag == 29) // GPSDate
{
return(new ExifDateTime(ExifTag.GPSDateStamp, ExifBitConverter.ToDateTime(value, false)));
}
else if (tag == 30) // GPSDifferential
{
return(new ExifEnumProperty <GPSDifferential>(ExifTag.GPSDifferential, (GPSDifferential)conv.ToUInt16(value, 0)));
}
}
else if (ifd == IFD.Interop)
{
if (tag == 1) // InteroperabilityIndex
{
return(new ExifAscii(ExifTag.InteroperabilityIndex, ExifBitConverter.ToAscii(value)));
}
else if (tag == 2) // InteroperabilityVersion
{
return(new ExifVersion(ExifTag.InteroperabilityVersion, ExifBitConverter.ToAscii(value)));
}
}
else if (ifd == IFD.First)
{
if (tag == 0x103) // Compression
{
return(new ExifEnumProperty <Compression>(ExifTag.ThumbnailCompression, (Compression)conv.ToUInt16(value, 0)));
}
else if (tag == 0x106) // PhotometricInterpretation
{
return(new ExifEnumProperty <PhotometricInterpretation>(ExifTag.ThumbnailPhotometricInterpretation, (PhotometricInterpretation)conv.ToUInt16(value, 0)));
}
else if (tag == 0x112) // Orientation
{
return(new ExifEnumProperty <Orientation>(ExifTag.ThumbnailOrientation, (Orientation)conv.ToUInt16(value, 0)));
}
else if (tag == 0x11c) // PlanarConfiguration
{
return(new ExifEnumProperty <PlanarConfiguration>(ExifTag.ThumbnailPlanarConfiguration, (PlanarConfiguration)conv.ToUInt16(value, 0)));
}
else if (tag == 0x213) // YCbCrPositioning
{
return(new ExifEnumProperty <YCbCrPositioning>(ExifTag.ThumbnailYCbCrPositioning, (YCbCrPositioning)conv.ToUInt16(value, 0)));
}
else if (tag == 0x128) // ResolutionUnit
{
return(new ExifEnumProperty <ResolutionUnit>(ExifTag.ThumbnailResolutionUnit, (ResolutionUnit)conv.ToUInt16(value, 0)));
}
else if (tag == 0x132) // DateTime
{
return(new ExifDateTime(ExifTag.ThumbnailDateTime, ExifBitConverter.ToDateTime(value)));
}
}
// Find the exif tag corresponding to given tag id
ExifTag etag = ExifTagFactory.GetExifTag(ifd, tag);
if (type == 1) // 1 = BYTE An 8-bit unsigned integer.
{
if (count == 1)
{
return(new ExifByte(etag, value[0]));
}
else
{
return(new ExifByteArray(etag, value));
}
}
else if (type == 2) // 2 = ASCII An 8-bit byte containing one 7-bit ASCII code.
{
return(new ExifAscii(etag, ExifBitConverter.ToAscii(value)));
}
else if (type == 3) // 3 = SHORT A 16-bit (2-byte) unsigned integer.
{
if (count == 1)
{
return(new ExifUShort(etag, conv.ToUInt16(value, 0)));
}
else
{
return(new ExifUShortArray(etag, ExifBitConverter.ToUShortArray(value, (int)count, byteOrder)));
}
}
else if (type == 4) // 4 = LONG A 32-bit (4-byte) unsigned integer.
{
if (count == 1)
{
return(new ExifUInt(etag, conv.ToUInt32(value, 0)));
}
else
{
return(new ExifUIntArray(etag, ExifBitConverter.ToUIntArray(value, (int)count, byteOrder)));
}
}
else if (type == 5) // 5 = RATIONAL Two LONGs. The first LONG is the numerator and the second LONG expresses the denominator.
{
if (count == 1)
{
return(new ExifURational(etag, ExifBitConverter.ToURational(value, byteOrder)));
}
else
{
return(new ExifURationalArray(etag, ExifBitConverter.ToURationalArray(value, (int)count, byteOrder)));
}
}
else if (type == 7) // 7 = UNDEFINED An 8-bit byte that can take any value depending on the field definition.
{
return(new ExifUndefined(etag, value));
}
else if (type == 9) // 9 = SLONG A 32-bit (4-byte) signed integer (2's complement notation).
{
if (count == 1)
{
return(new ExifSInt(etag, conv.ToInt32(value, 0)));
}
else
{
return(new ExifSIntArray(etag, ExifBitConverter.ToSIntArray(value, (int)count, byteOrder)));
}
}
else if (type == 10) // 10 = SRATIONAL Two SLONGs. The first SLONG is the numerator and the second SLONG is the denominator.
{
if (count == 1)
{
return(new ExifSRational(etag, ExifBitConverter.ToSRational(value, byteOrder)));
}
else
{
return(new ExifSRationalArray(etag, ExifBitConverter.ToSRationalArray(value, (int)count, byteOrder)));
}
}
else
{
throw new ArgumentException("Unknown property type.");
}
}
public static unsafe float ReadSingle(this FileStream stream, bool isLittleEndian)
{
var value = stream.Read(bytes => BitConverterEx.ToInt32(bytes, 0, isLittleEndian));
return(*(float *)&value);
}
public static int ReadInt32(this FileStream stream, bool isLittleEndian)
{
return(stream.Read(bytes => BitConverterEx.ToInt32(bytes, 0, isLittleEndian)));
}