private bool encodeLSBBMP()
{
bool result = false;
BmpFileHeaders bmpFileHeaders = FileFormatHelpers.readBmpFileHeaders(this.fileBytes);
LSBEncodeDialog lSBEncodeDialog = new LSBEncodeDialog();
if (lSBEncodeDialog.ShowDialog() == true)
{
EncodeQueryResult encodeQueryResult = lSBEncodeDialog.getResult();
byte[] sourceByteArray = FileFormatHelpers.convertLayerToByteArray(encodeQueryResult.layers[encodeQueryResult.layers.Count - 1]);
for (int index = (encodeQueryResult.layers.Count - 1); index >= 0; index--)
{
if (index == 0)
{
FileFormatHelpers.encodeDataIntoFileBytesBmp(
ref bmpFileHeaders,
ref sourceByteArray,
ref this.fileBytes
);
}
else
{
LayerInformation layerTargetInformation = encodeQueryResult.layers[index - 1];
sourceByteArray = FileFormatHelpers.encodeDataIntoLayersFileBytes(
ref sourceByteArray,
layerTargetInformation
);
}
encodeQueryResult.layers.RemoveAt(index);
}
result = true;
}
return(result);
}
public static BmpFileHeaders readBmpFileHeaders(byte[] fileBytes)
{
BmpFileHeaders bmpFileHeaders = new BmpFileHeaders();
BinaryReader binaryReader = new BinaryReader(new MemoryStream(fileBytes));
bmpFileHeaders.header.signature = binaryReader.ReadUInt16();
bmpFileHeaders.header.fileSize = binaryReader.ReadUInt32();
bmpFileHeaders.header.reserved = binaryReader.ReadUInt32();
bmpFileHeaders.header.dataOffset = binaryReader.ReadUInt32();
bmpFileHeaders.infoHeader.size = binaryReader.ReadUInt32();
bmpFileHeaders.infoHeader.width = binaryReader.ReadUInt32();
bmpFileHeaders.infoHeader.height = binaryReader.ReadUInt32();
bmpFileHeaders.infoHeader.planes = binaryReader.ReadUInt16();
bmpFileHeaders.infoHeader.bitsPerPixel = binaryReader.ReadUInt16();
bmpFileHeaders.infoHeader.compresion = binaryReader.ReadUInt32();
bmpFileHeaders.infoHeader.imageSize = binaryReader.ReadUInt32();
bmpFileHeaders.infoHeader.xPixelsPerM = binaryReader.ReadUInt32();
bmpFileHeaders.infoHeader.yPixelsPerM = binaryReader.ReadUInt32();
bmpFileHeaders.infoHeader.colorsUsed = binaryReader.ReadUInt32();
bmpFileHeaders.infoHeader.importantColors = binaryReader.ReadUInt32();
return(bmpFileHeaders);
}
