public override ImageMetaData ReadMetaData(IBinaryStream file)
{
var info = new AkbMetaData();
bool is_incremental = '+' == (file.ReadUInt32() >> 24);
info.Width = file.ReadUInt16();
info.Height = file.ReadUInt16();
info.Flags = file.ReadUInt32();
info.BPP = 0 == (info.Flags & 0x40000000) ? 32 : 24;
info.Background = file.ReadBytes(4);
info.OffsetX = file.ReadInt32();
info.OffsetY = file.ReadInt32();
info.InnerWidth = file.ReadInt32() - info.OffsetX;
info.InnerHeight = file.ReadInt32() - info.OffsetY;
if (info.InnerWidth > info.Width || info.InnerHeight > info.Height)
{
return(null);
}
if (is_incremental)
{
info.BaseFileName = file.ReadCString(0x20);
}
info.DataOffset = (uint)file.Position;
return(info);
}
byte[] ReadBaseImage(string filename, AkbMetaData overlay_info)
{
var pattern = Path.GetFileNameWithoutExtension(filename) + ".*";
pattern = VFS.CombinePath(VFS.GetDirectoryName(filename), pattern);
foreach (var entry in VFS.GetFiles(pattern))
{
if (entry.Name == overlay_info.FileName)
{
continue;
}
using (var base_file = VFS.OpenBinaryStream(entry))
{
var base_info = ReadMetaData(base_file) as AkbMetaData;
if (null != base_info && base_info.BPP == overlay_info.BPP &&
base_info.Width == overlay_info.Width && base_info.Height == overlay_info.Height)
{
// FIXME what if baseline image is incremental itself?
var reader = new AkbReader(base_file.AsStream, base_info);
return(reader.Unpack());
}
}
}
return(null);
}
public AkbReader(Stream input, AkbMetaData info)
{
m_input = input;
m_info = info;
m_pixel_size = m_info.BPP / 8;
Stride = (int)m_info.Width * m_pixel_size;
Format = 24 == m_info.BPP ? PixelFormats.Bgr24 : PixelFormats.Bgra32;
}
public AkbReader(Stream input, AkbMetaData info)
{
m_input = input;
m_info = info;
m_pixel_size = m_info.BPP / 8;
Stride = (int)m_info.Width * m_pixel_size;
if (24 == m_info.BPP)
{
Format = PixelFormats.Bgr24;
}
else if (0 == (m_info.Flags & 0x80000000))
{
Format = PixelFormats.Bgr32;
}
else
{
Format = PixelFormats.Bgra32;
}
}
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var reader = new ArcView.Reader (stream))
{
reader.ReadInt32();
var info = new AkbMetaData();
info.Width = reader.ReadUInt16();
info.Height = reader.ReadUInt16();
int flags = reader.ReadInt32() & 0xFFFF;
info.BPP = 0 == flags ? 32 : 24;
info.Background = reader.ReadBytes (4);
info.OffsetX = reader.ReadInt32();
info.OffsetY = reader.ReadInt32();
info.InnerWidth = reader.ReadInt32() - info.OffsetX;
info.InnerHeight = reader.ReadInt32() - info.OffsetY;
if (info.InnerWidth > info.Width || info.InnerHeight > info.Height)
return null;
return info;
}
}
} // 'AKB '
public override ImageMetaData ReadMetaData(Stream stream)
{
using (var reader = new ArcView.Reader(stream))
{
reader.ReadInt32();
var info = new AkbMetaData();
info.Width = reader.ReadUInt16();
info.Height = reader.ReadUInt16();
int flags = reader.ReadInt32() & 0xFFFF;
info.BPP = 0 == flags ? 32 : 24;
info.Background = reader.ReadBytes(4);
info.OffsetX = reader.ReadInt32();
info.OffsetY = reader.ReadInt32();
info.InnerWidth = reader.ReadInt32() - info.OffsetX;
info.InnerHeight = reader.ReadInt32() - info.OffsetY;
if (info.InnerWidth > info.Width || info.InnerHeight > info.Height)
{
return(null);
}
return(info);
}
}
public AkbReader(Stream input, AkbMetaData info)
{
m_input = input;
m_info = info;
m_pixel_size = m_info.BPP / 8;
Stride = (int)m_info.Width * m_pixel_size;
Format = 24 == m_info.BPP ? PixelFormats.Bgr24 : PixelFormats.Bgra32;
}
