public override ArcFile TryOpen(ArcView file)
{
int count = file.View.ReadInt32(0);
if (count <= 0 || count > 100)
{
return(null);
}
int first_offset = file.View.ReadInt32(4);
if (0 != first_offset)
{
return(null);
}
string base_name = Path.GetFileNameWithoutExtension(file.Name);
int base_offset = 4 + count * 0x1C;
int index_offset = 4;
var dir = new List <Entry> (count);
for (int i = 0; i < count; ++i)
{
var entry = new BdfFrame {
Number = i,
Name = string.Format("{0}#{1:D2}", base_name, i),
Type = "image",
Offset = base_offset + file.View.ReadUInt32(index_offset),
Size = file.View.ReadUInt32(index_offset + 4),
Incremental = 0 != file.View.ReadInt32(index_offset + 8),
Width = file.View.ReadInt32(index_offset + 0x14),
Height = file.View.ReadInt32(index_offset + 0x18),
};
if (entry.Size > 0)
{
if (entry.Size < 4 || entry.Width <= 0 || entry.Height <= 0 ||
!entry.CheckPlacement(file.MaxOffset))
{
return(null);
}
dir.Add(entry);
}
index_offset += 0x1C;
}
return(new BdfArchive(file, this, dir));
}
public byte[] ReadFrame(BdfFrame frame)
{
byte[] pixels;
if (!frame.Incremental)
{
if (null != FirstFrame && 0 == frame.Number)
{
return(FirstFrame);
}
pixels = new byte[frame.Width * frame.Height * 3];
using (var input = File.CreateStream(frame.Offset, frame.Size))
DecodeFrame(input, pixels);
if (null == FirstFrame && 0 == frame.Number)
{
FirstFrame = pixels;
}
}
else
{
if (null == FirstFrame)
{
var base_frame = Dir.First() as BdfFrame;
FirstFrame = new byte[base_frame.Width * base_frame.Height * 3];
using (var input = File.CreateStream(base_frame.Offset, base_frame.Size))
DecodeFrame(input, FirstFrame);
}
pixels = FirstFrame.Clone() as byte[];
int i = 1;
foreach (BdfFrame entry in Dir.Skip(1))
{
if (i++ > frame.Number)
{
break;
}
using (var input = File.CreateStream(entry.Offset, entry.Size))
DecodeFrame(input, pixels, entry.Incremental);
}
}
return(pixels);
}
public override ArcFile TryOpen(ArcView file)
{
int count = file.View.ReadInt32 (0);
if (count <= 0 || count > 100)
return null;
int first_offset = file.View.ReadInt32 (4);
if (0 != first_offset)
return null;
string base_name = Path.GetFileNameWithoutExtension (file.Name);
int base_offset = 4 + count * 0x1C;
int index_offset = 4;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var entry = new BdfFrame {
Number = i,
Name = string.Format ("{0}#{1:D2}.tga", base_name, i),
Type = "image",
Offset = base_offset + file.View.ReadUInt32 (index_offset),
Size = file.View.ReadUInt32 (index_offset+4),
Incremental = 0 != file.View.ReadInt32 (index_offset+8),
Width = file.View.ReadInt32 (index_offset+0x14),
Height = file.View.ReadInt32 (index_offset+0x18),
};
if (entry.Size < 4 || entry.Width <= 0 || entry.Height <= 0
|| !entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
index_offset += 0x1C;
}
return new BdfArchive (file, this, dir);
}
public byte[] ReadFrame(BdfFrame frame)
{
byte[] pixels;
if (!frame.Incremental)
{
if (null != FirstFrame && 0 == frame.Number)
return FirstFrame;
pixels = new byte[frame.Width * frame.Height * 3];
using (var input = File.CreateStream (frame.Offset, frame.Size))
DecodeFrame (input, pixels);
if (null == FirstFrame && 0 == frame.Number)
FirstFrame = pixels;
}
else
{
if (null == FirstFrame)
{
var base_frame = Dir.First() as BdfFrame;
FirstFrame = new byte[base_frame.Width * base_frame.Height * 3];
using (var input = File.CreateStream (base_frame.Offset, base_frame.Size))
DecodeFrame (input, FirstFrame);
}
pixels = FirstFrame.Clone() as byte[];
int i = 1;
foreach (BdfFrame entry in Dir.Skip(1))
{
if (i++ > frame.Number)
break;
using (var input = File.CreateStream (entry.Offset, entry.Size))
DecodeFrame (input, pixels, entry.Incremental);
}
}
return pixels;
}
public BdfImageDecoder(BdfArchive arc, BdfFrame entry)
: base(arc.File.CreateStream(entry.Offset, entry.Size), arc.Info)
{
m_bdf = arc;
m_frame = entry;
}
