public CandyDecoder(IBinaryStream input, CandyMetaData info)
{
m_input = input;
m_info = info;
m_width = (int)info.Width;
m_height = (int)info.Height;
m_colors = info.Colors;
if (24 == info.BPP || (32 == info.BPP && 1 == info.Version))
{
m_pixel_size = 3;
m_stride = m_width * 3;
Format = PixelFormats.Bgr24;
}
else if (32 == info.BPP)
{
m_pixel_size = 4;
m_stride = m_width * 4;
Format = PixelFormats.Bgra32;
}
else
{
m_pixel_size = 1;
m_stride = m_width;
Format = PixelFormats.Indexed8;
}
m_output = new byte[m_stride * m_height];
}
public CandyDecoder(IBinaryStream input, CandyMetaData info)
{
m_input = input;
m_width = (int)info.Width;
m_height = (int)info.Height;
m_colors = info.Colors;
if (32 == info.BPP)
{
m_stride = (int)m_width * 3;
Format = PixelFormats.Bgr24;
}
else
{
m_stride = (int)m_width;
Format = PixelFormats.Indexed8;
}
m_output = new byte[m_stride * m_height];
}
public override ImageMetaData ReadMetaData(IBinaryStream file)
{
var header = file.ReadHeader(14);
int header_size = BigEndian.ToUInt16(header, 0);
CandyMetaData info;
if (14 == header_size)
{
info = new CandyMetaData {
OffsetX = BigEndian.ToInt16(header, 2),
OffsetY = BigEndian.ToInt16(header, 4),
Width = BigEndian.ToUInt16(header, 6),
Height = BigEndian.ToUInt16(header, 8),
BPP = header[0xA],
Colors = BigEndian.ToUInt16(header, 0xC),
Version = header[0xB],
HeaderSize = header_size,
};
}
else if (10 == header_size)
{
info = new CandyMetaData {
Width = BigEndian.ToUInt16(header, 2),
Height = BigEndian.ToUInt16(header, 4),
BPP = header[6],
Colors = BigEndian.ToUInt16(header, 8),
Version = header[7],
HeaderSize = header_size,
};
}
else
{
return(null);
}
if (info.Version != 1 && info.Version != 2 || info.BPP < 8 || info.BPP > 32)
{
return(null);
}
return(info);
}