} // 'TYP1'
public override ImageMetaData ReadMetaData(IBinaryStream stream)
{
stream.Position = 4;
int bpp = stream.ReadByte();
bool has_palette = stream.ReadByte() != 0;
var info = new Typ1MetaData {
BPP = bpp
};
info.Width = stream.ReadUInt16();
info.Height = stream.ReadUInt16();
uint packed_size = stream.ReadUInt32();
uint palette_size = 8 == bpp ? 0x400u : 0u;
if (packed_size + palette_size + 0xE == stream.Length)
{
info.SeparateChannels = false;
info.HasPalette = palette_size > 0;
info.PackedSize = packed_size;
}
else
{
info.SeparateChannels = true;
info.HasPalette = has_palette;
info.Channel[0] = stream.ReadUInt32();
info.Channel[1] = stream.ReadUInt32();
info.Channel[2] = stream.ReadUInt32();
info.Channel[3] = stream.ReadUInt32();
}
return(info);
}
public Reader(Stream input, Typ1MetaData info)
{
m_width = (int)info.Width;
m_height = (int)info.Height;
m_info = info;
m_pixel_size = 8 == m_info.BPP ? 1 : 4;
m_output = new byte[m_width * m_height * m_pixel_size];
if (8 == m_info.BPP)
{
Format = m_info.HasPalette ? PixelFormats.Indexed8 : PixelFormats.Gray8;
}
else if (24 == m_info.BPP)
{
Format = PixelFormats.Bgr32;
}
else if (32 == m_info.BPP)
{
Format = PixelFormats.Bgra32;
}
else
{
throw new InvalidFormatException("Invalid CPB color depth");
}
m_input = input;
}
public Reader(Stream input, Typ1MetaData info)
{
m_width = (int)info.Width;
m_height = (int)info.Height;
m_bpp = info.BPP;
m_pixel_size = 8 == m_bpp ? 1 : 4;
m_channel = info.Channel;
m_output = new byte[m_width * m_height * m_pixel_size];
if (8 == m_bpp)
{
Format = info.HasPalette ? PixelFormats.Indexed8 : PixelFormats.Gray8;
}
else if (24 == m_bpp)
{
Format = PixelFormats.Bgr32;
}
else if (32 == m_bpp)
{
Format = PixelFormats.Bgra32;
}
else
{
throw new InvalidFormatException("Invalid CPB color depth");
}
m_input = input;
if (info.HasPalette)
{
m_input.Position = 0x1E;
Palette = ReadPalette();
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Position = 4;
int bpp = stream.ReadByte();
bool has_palette = stream.ReadByte() != 0;
using (var input = new ArcView.Reader(stream))
{
var info = new Typ1MetaData {
BPP = bpp, HasPalette = has_palette
};
info.Width = input.ReadUInt16();
info.Height = input.ReadUInt16();
input.ReadInt32();
info.Channel[0] = input.ReadUInt32();
info.Channel[1] = input.ReadUInt32();
info.Channel[2] = input.ReadUInt32();
info.Channel[3] = input.ReadUInt32();
return(info);
}
}
