public PcxDirectory Extract([NotNull] SequentialReader reader)
{
reader = reader.WithByteOrder(isMotorolaByteOrder: false);
var directory = new PcxDirectory();
try
{
var identifier = reader.GetSByte();
if (identifier != 0x0A)
{
throw new ImageProcessingException("Invalid PCX identifier byte");
}
directory.Set(PcxDirectory.TagVersion, reader.GetSByte());
var encoding = reader.GetSByte();
if (encoding != 0x01)
{
throw new ImageProcessingException("Invalid PCX encoding byte");
}
directory.Set(PcxDirectory.TagBitsPerPixel, reader.GetByte());
directory.Set(PcxDirectory.TagXMin, reader.GetUInt16());
directory.Set(PcxDirectory.TagYMin, reader.GetUInt16());
directory.Set(PcxDirectory.TagXMax, reader.GetUInt16());
directory.Set(PcxDirectory.TagYMax, reader.GetUInt16());
directory.Set(PcxDirectory.TagHorizontalDpi, reader.GetUInt16());
directory.Set(PcxDirectory.TagVerticalDpi, reader.GetUInt16());
directory.Set(PcxDirectory.TagPalette, reader.GetBytes(48));
reader.Skip(1);
directory.Set(PcxDirectory.TagColorPlanes, reader.GetByte());
directory.Set(PcxDirectory.TagBytesPerLine, reader.GetUInt16());
var paletteType = reader.GetUInt16();
if (paletteType != 0)
{
directory.Set(PcxDirectory.TagPaletteType, paletteType);
}
var hScrSize = reader.GetUInt16();
if (hScrSize != 0)
{
directory.Set(PcxDirectory.TagHScrSize, hScrSize);
}
var vScrSize = reader.GetUInt16();
if (vScrSize != 0)
{
directory.Set(PcxDirectory.TagVScrSize, vScrSize);
}
}
catch (Exception ex)
{
directory.AddError("Exception reading PCX file metadata: " + ex.Message);
}
return(directory);
}
public PcxDirectory Extract([NotNull] SequentialReader reader)
{
reader.IsMotorolaByteOrder = false;
var directory = new PcxDirectory();
try
{
var identifier = reader.GetSByte();
if (identifier != 0x0A)
{
throw new ImageProcessingException("Invalid PCX identifier byte");
}
directory.Set(PcxDirectory.TagVersion, reader.GetSByte());
var encoding = reader.GetSByte();
if (encoding != 0x01)
{
throw new ImageProcessingException("Invalid PCX encoding byte");
}
directory.Set(PcxDirectory.TagBitsPerPixel, reader.GetByte());
directory.Set(PcxDirectory.TagXMin, reader.GetUInt16());
directory.Set(PcxDirectory.TagYMin, reader.GetUInt16());
directory.Set(PcxDirectory.TagXMax, reader.GetUInt16());
directory.Set(PcxDirectory.TagYMax, reader.GetUInt16());
directory.Set(PcxDirectory.TagHorizontalDpi, reader.GetUInt16());
directory.Set(PcxDirectory.TagVerticalDpi, reader.GetUInt16());
directory.Set(PcxDirectory.TagPalette, reader.GetBytes(48));
reader.Skip(1);
directory.Set(PcxDirectory.TagColorPlanes, reader.GetByte());
directory.Set(PcxDirectory.TagBytesPerLine, reader.GetUInt16());
var paletteType = reader.GetUInt16();
if (paletteType != 0)
{
directory.Set(PcxDirectory.TagPaletteType, paletteType);
}
var hScrSize = reader.GetUInt16();
if (hScrSize != 0)
{
directory.Set(PcxDirectory.TagHScrSize, hScrSize);
}
var vScrSize = reader.GetUInt16();
if (vScrSize != 0)
{
directory.Set(PcxDirectory.TagVScrSize, vScrSize);
}
}
catch (Exception ex)
{
directory.AddError("Exception reading PCX file metadata: " + ex.Message);
}
return directory;
}
