/// <summary>
/// Encode a subcodec bitmap area into byte stream
/// </summary>
/// <param name="subcodeBmp">The bitmap to be encoded in subcodec layer.</param>
/// <param name="subcodecRect">The subcodec area relative to bitmap left-top edge.</param>
/// <param name="subcodecID">The subcodec ID to be chosen.</param>
/// <param name="subcodec">The subcodec layer encode result.</param>
public static bool EncodeSubcodec(Bitmap subcodecBmp, ClearCodec_RECT16 subcodecRect, CLEARCODEC_SUBCODEC_ID subcodecID,
ref CLEARCODEC_SUBCODEC subcodec)
{
if (subcodecBmp == null)
{
return(false);
}
subcodec.xStart = subcodecRect.left;
subcodec.yStart = subcodecRect.top;
subcodec.width = (ushort)(subcodecRect.right - subcodecRect.left);
subcodec.height = (ushort)(subcodecRect.bottom - subcodecRect.top);
// save subcodecID
subcodec.bitmapData.subCodecId = subcodecID;
// get encoded data based on subcodecID
if (subcodecID == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RLEX)
{
// RLEX encoded bitmap data
if (!RlexEncode(subcodecBmp, ref subcodec.bitmapData.bmpRlex))
{
return(false);
}
}
else
{
// raw encoded bitmap data
if (!RawEncode(subcodecBmp, ref subcodec.bitmapData.bmpPixels))
{
return(false);
}
}
return(true);
}
/// <summary>
/// It decode a subcodec bitmap byte stream into CLEARCODEC_SUBCODEC structure
/// </summary>
/// <param name = "subcodec"> the structure that decode result save to </param>
/// <return> true if decode success, otherwise return false </return>
public bool DecodeSubcodec(ref CLEARCODEC_SUBCODEC subcodec)
{
if (!DecodeUShort(ref subcodec.xStart))
{
return(false);
}
if (!DecodeUShort(ref subcodec.yStart))
{
return(false);
}
if (!DecodeUShort(ref subcodec.width))
{
return(false);
}
if (!DecodeUShort(ref subcodec.height))
{
return(false);
}
if (!DecodeUInt(ref subcodec.bitmapDataByteCount))
{
return(false);
}
byte scId = 0;
if (!DecodeByte(ref scId))
{
return(false);
}
subcodec.bitmapData.subCodecId = (CLEARCODEC_SUBCODEC_ID)scId;
if (subcodec.bitmapData.subCodecId == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RLEX)
{
if (!DecodeRlexData(subcodec.bitmapDataByteCount, ref subcodec.bitmapData.bmpRlex))
{
return(false);
}
}
else if (subcodec.bitmapData.subCodecId == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RAW)
{
if (subcodec.bitmapDataByteCount != 3 * subcodec.width * subcodec.height)
{
return(false);
}
if (!DecodeRawData(subcodec.bitmapDataByteCount, ref subcodec.bitmapData.bmpPixels))
{
return(false);
}
}
else // NSCodec data
{
return(false);
}
return(true);
}
/// <summary>
/// It decode subcodec layer byte stream into CLEARCODEC_SUBCODECS_DATA structure.
/// </summary>
/// <param name="subcodecData">The structure that decode result save to.</param>
/// <returns>true if decode success, otherwise return false.</returns>
public bool Decode(ref CLEARCODEC_SUBCODEC_DATA subcodecData)
{
if (decodeData == null) return false;
List<CLEARCODEC_SUBCODEC> subcodecList = new List<CLEARCODEC_SUBCODEC>();
while (offset < decodeData.Count())
{
CLEARCODEC_SUBCODEC subcodec = new CLEARCODEC_SUBCODEC();
if (!DecodeSubcodec(ref subcodec)) return false;
subcodecList.Add(subcodec);
}
subcodecData.subcodecArr = subcodecList.ToArray();
return true;
}
/// <summary>
/// It decode subcodec layer byte stream into CLEARCODEC_SUBCODECS_DATA structure.
/// </summary>
/// <param name="subcodecData">The structure that decode result save to.</param>
/// <returns>true if decode success, otherwise return false.</returns>
public bool Decode(ref CLEARCODEC_SUBCODEC_DATA subcodecData)
{
if (decodeData == null)
{
return(false);
}
List <CLEARCODEC_SUBCODEC> subcodecList = new List <CLEARCODEC_SUBCODEC>();
while (offset < decodeData.Count())
{
CLEARCODEC_SUBCODEC subcodec = new CLEARCODEC_SUBCODEC();
if (!DecodeSubcodec(ref subcodec))
{
return(false);
}
subcodecList.Add(subcodec);
}
subcodecData.subcodecArr = subcodecList.ToArray();
return(true);
}
/// <summary>
/// Encode multiple bitmap areas via subcodec into byte stream
/// </summary>
/// <param name="bandDict">The structure saves multiple subcodec layer bitmap, subcodecID and position.</param>
public static CLEARCODEC_SUBCODEC_DATA Encode(Dictionary <ClearCodec_RECT16, BMP_INFO> subcodecDict)
{
List <CLEARCODEC_SUBCODEC> subcodecList = new List <CLEARCODEC_SUBCODEC>();
foreach (KeyValuePair <ClearCodec_RECT16, BMP_INFO> scArea in subcodecDict)
{
CLEARCODEC_SUBCODEC scData = new CLEARCODEC_SUBCODEC();
if (!EncodeSubcodec((Bitmap)(scArea.Value.bmp), scArea.Key, scArea.Value.scID, ref scData))
{
// skip a subcodec layer bitmap if it failed to be encoded.
continue;
}
subcodecList.Add(scData);
}
CLEARCODEC_SUBCODEC_DATA subcodecs = new CLEARCODEC_SUBCODEC_DATA();
subcodecs.subcodecArr = subcodecList.ToArray();
return(subcodecs);
}
/// <summary>
/// Convert CLEARCODEC_SUBCODEC structure into byte stream.
/// </summary>
/// <param name="scStruct">The encoded CLEARCODEC_SUBCODEC structure.</param>
public byte[] ToBytes(CLEARCODEC_SUBCODEC scStruct)
{
List <byte> bufList = new List <byte>();
bufList.AddRange(TypeMarshal.ToBytes <ushort>(scStruct.xStart));
bufList.AddRange(TypeMarshal.ToBytes <ushort>(scStruct.yStart));
bufList.AddRange(TypeMarshal.ToBytes <ushort>(scStruct.width));
bufList.AddRange(TypeMarshal.ToBytes <ushort>(scStruct.height));
byte[] bmpData = null;
if (scStruct.bitmapData.subCodecId == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RAW)
{
bmpData = ToBytes(scStruct.bitmapData.bmpPixels);
}
else if (scStruct.bitmapData.subCodecId == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RLEX)
{
bmpData = ToBytes(scStruct.bitmapData.bmpRlex);
}
else // NSCodec bitmap data for subcodec layer.
{
}
// Set bitmapData byte length.
if (bmpData != null)
{
scStruct.bitmapDataByteCount = (uint)bmpData.Count();
}
bufList.AddRange(TypeMarshal.ToBytes <uint>(scStruct.bitmapDataByteCount));
bufList.AddRange(TypeMarshal.ToBytes <byte>((byte)scStruct.bitmapData.subCodecId));
if (bmpData != null)
{
bufList.AddRange(bmpData);
}
return(bufList.ToArray());
}
/// <summary>
/// It decode a subcodec bitmap byte stream into CLEARCODEC_SUBCODEC structure
/// </summary>
/// <param name = "subcodec"> the structure that decode result save to </param>
/// <return> true if decode success, otherwise return false </return>
public bool DecodeSubcodec(ref CLEARCODEC_SUBCODEC subcodec)
{
if (!DecodeUShort(ref subcodec.xStart)) return false;
if (!DecodeUShort(ref subcodec.yStart)) return false;
if (!DecodeUShort(ref subcodec.width)) return false;
if (!DecodeUShort(ref subcodec.height)) return false;
if (!DecodeUInt(ref subcodec.bitmapDataByteCount)) return false;
byte scId = 0;
if (!DecodeByte(ref scId)) return false;
subcodec.bitmapData.subCodecId = (CLEARCODEC_SUBCODEC_ID)scId;
if (subcodec.bitmapData.subCodecId == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RLEX)
{
if (!DecodeRlexData(subcodec.bitmapDataByteCount, ref subcodec.bitmapData.bmpRlex)) return false;
}
else if (subcodec.bitmapData.subCodecId == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RAW)
{
if (subcodec.bitmapDataByteCount != 3 * subcodec.width * subcodec.height)
return false;
if (!DecodeRawData(subcodec.bitmapDataByteCount, ref subcodec.bitmapData.bmpPixels)) return false;
}
else // NSCodec data
{
return false;
}
return true;
}
/// <summary>
/// Encode a subcodec bitmap area into byte stream
/// </summary>
/// <param name="subcodeBmp">The bitmap to be encoded in subcodec layer.</param>
/// <param name="subcodecRect">The subcodec area relative to bitmap left-top edge.</param>
/// <param name="subcodecID">The subcodec ID to be chosen.</param>
/// <param name="subcodec">The subcodec layer encode result.</param>
public static bool EncodeSubcodec(Bitmap subcodecBmp, ClearCodec_RECT16 subcodecRect, CLEARCODEC_SUBCODEC_ID subcodecID,
ref CLEARCODEC_SUBCODEC subcodec)
{
if (subcodecBmp == null) return false;
subcodec.xStart = subcodecRect.left;
subcodec.yStart = subcodecRect.top;
subcodec.width = (ushort)(subcodecRect.right - subcodecRect.left);
subcodec.height = (ushort)(subcodecRect.bottom - subcodecRect.top);
// save subcodecID
subcodec.bitmapData.subCodecId = subcodecID;
// get encoded data based on subcodecID
if (subcodecID == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RLEX)
{
// RLEX encoded bitmap data
if( !RlexEncode(subcodecBmp, ref subcodec.bitmapData.bmpRlex)) return false;
}
else
{
// raw encoded bitmap data
if (!RawEncode(subcodecBmp, ref subcodec.bitmapData.bmpPixels)) return false;
}
return true;
}
/// <summary>
/// Encode multiple bitmap areas via subcodec into byte stream
/// </summary>
/// <param name="bandDict">The structure saves multiple subcodec layer bitmap, subcodecID and position.</param>
public static CLEARCODEC_SUBCODEC_DATA Encode(Dictionary<ClearCodec_RECT16, BMP_INFO> subcodecDict)
{
List<CLEARCODEC_SUBCODEC> subcodecList = new List<CLEARCODEC_SUBCODEC>();
foreach (KeyValuePair<ClearCodec_RECT16, BMP_INFO> scArea in subcodecDict)
{
CLEARCODEC_SUBCODEC scData = new CLEARCODEC_SUBCODEC();
if (!EncodeSubcodec((Bitmap)(scArea.Value.bmp), scArea.Key, scArea.Value.scID, ref scData))
{
// skip a subcodec layer bitmap if it failed to be encoded.
continue;
}
subcodecList.Add(scData);
}
CLEARCODEC_SUBCODEC_DATA subcodecs = new CLEARCODEC_SUBCODEC_DATA();
subcodecs.subcodecArr = subcodecList.ToArray();
return subcodecs;
}
/// <summary>
/// Convert CLEARCODEC_SUBCODEC structure into byte stream.
/// </summary>
/// <param name="scStruct">The encoded CLEARCODEC_SUBCODEC structure.</param>
public byte[] ToBytes(CLEARCODEC_SUBCODEC scStruct)
{
List<byte> bufList = new List<byte>();
bufList.AddRange(TypeMarshal.ToBytes<ushort>(scStruct.xStart));
bufList.AddRange(TypeMarshal.ToBytes<ushort>(scStruct.yStart));
bufList.AddRange(TypeMarshal.ToBytes<ushort>(scStruct.width));
bufList.AddRange(TypeMarshal.ToBytes<ushort>(scStruct.height));
byte[] bmpData = null;
if (scStruct.bitmapData.subCodecId == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RAW)
{
bmpData = ToBytes(scStruct.bitmapData.bmpPixels);
}
else if (scStruct.bitmapData.subCodecId == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RLEX)
{
bmpData = ToBytes(scStruct.bitmapData.bmpRlex);
}
else // NSCodec bitmap data for subcodec layer.
{
}
// Set bitmapData byte length.
if (bmpData != null)
{
scStruct.bitmapDataByteCount = (uint)bmpData.Count();
}
bufList.AddRange(TypeMarshal.ToBytes<uint>(scStruct.bitmapDataByteCount));
bufList.AddRange(TypeMarshal.ToBytes<byte>((byte)scStruct.bitmapData.subCodecId));
if (bmpData != null)
bufList.AddRange(bmpData);
return bufList.ToArray();
}