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added GG2 image format.

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morkt 2015-02-15 19:51:16 +04:00
parent cc44a73bc5
commit 797931eef8
1 changed files with 224 additions and 0 deletions
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224
ArcFormats/ImageDRG.cs
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@ -44,6 +44,7 @@ namespace GameRes.Formats.DRS
public DrgFormat () public DrgFormat ()
{ {
Extensions = new string[] { "drg", "ggd" };
Signatures = new uint[] { ~0x4c4c5546u, ~0x45555254u, ~0x48474948u, ~0x47363532u }; Signatures = new uint[] { ~0x4c4c5546u, ~0x45555254u, ~0x48474948u, ~0x47363532u };
} }
@ -443,4 +444,227 @@ namespace GameRes.Formats.DRS
#endregion #endregion
} }
} }
[Export(typeof(ImageFormat))]
public class GgaFormat : ImageFormat
{
public override string Tag { get { return "GG2"; } }
public override string Description { get { return "IKURA GDL image format"; } }
public override uint Signature { get { return 0x30414747u; } } // 'GGA0'
internal class GgaMetaData : ImageMetaData
{
public uint HeaderSize;
public uint CompSize;
}
public override void Write (Stream file, ImageData image)
{
throw new NotImplementedException ("GgaFormat.Write not implemented");
}
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[24];
if (header.Length != stream.Read (header, 0, header.Length))
return null;
if (!Binary.AsciiEqual (header, "GGA00000"))
return null;
return new GgaMetaData {
Width = LittleEndian.ToUInt16 (header, 8),
Height = LittleEndian.ToUInt16 (header, 10),
BPP = 32,
HeaderSize = LittleEndian.ToUInt32 (header, 16),
CompSize = LittleEndian.ToUInt32 (header, 20)
};
}
public override ImageData Read (Stream file, ImageMetaData info)
{
var meta = info as GgaMetaData;
if (null == meta)
throw new ArgumentException ("GgaFormat.Read should be supplied with GgaMetaData", "info");
file.Position = meta.HeaderSize;
var pixel_data = DecodeStream (file, meta, (int)(meta.Width*meta.Height*4));
var bitmap = BitmapSource.Create ((int)info.Width, (int)info.Height, 96, 96,
PixelFormats.Bgra32, null, pixel_data, (int)info.Width*4);
bitmap.Freeze();
return new ImageData (bitmap, info);
}
byte[] DecodeStream (Stream file, GgaMetaData meta, int pixel_count)
{
using (var input = new BinaryReader (file, Encoding.ASCII, true))
using (var output = new MemoryStream (pixel_count))
{
var buf = new byte[4];
uint isize = 0;
while (isize < meta.CompSize)
{
int ctrl = input.ReadByte();
++isize;
switch (ctrl)
{
case 0:
{
output.Position -= 4;
output.Read (buf, 0, 4);
byte i = input.ReadByte();
isize++;
for (int j = 0; j < i; ++j)
output.Write (buf, 0, 4);
break;
}
case 1:
{
output.Position -= 4;
output.Read (buf, 0, 4);
int i = input.ReadUInt16();
isize += 2;
for (int j = 0; j < i; ++j)
output.Write (buf, 0, 4);
break;
}
case 2:
{
byte l = input.ReadByte();
isize++;
var curpos = output.Position;
output.Position -= l << 2;
output.Read (buf, 0, 4);
output.Position = curpos;
output.Write (buf, 0, 4);
break;
}
case 3:
{
int l = input.ReadUInt16();
isize += 2;
var curpos = output.Position;
output.Position -= l << 2;
output.Read (buf, 0, 4);
output.Position = curpos;
output.Write (buf, 0, 4);
break;
}
case 4:
{
byte l = input.ReadByte();
var dstpos = output.Position - (l << 2);
int i = input.ReadByte();
isize += 2;
for (int j = 0; j < i; ++j)
{
var curpos = output.Position;
output.Position = dstpos;
dstpos += 4;
output.Read (buf, 0, 4);
output.Position = curpos;
output.Write (buf, 0, 4);
}
break;
}
case 5:
{
byte l = input.ReadByte();
var dstpos = output.Position - (l << 2);
int i = input.ReadUInt16();
isize += 3;
for (int j = 0; j < i; ++j)
{
var curpos = output.Position;
output.Position = dstpos;
dstpos += 4;
output.Read (buf, 0, 4);
output.Position = curpos;
output.Write (buf, 0, 4);
}
break;
}
case 6:
{
int l = input.ReadUInt16();
var dstpos = output.Position - (l << 2);
int i = input.ReadByte();
isize += 3;
for (int j = 0; j < i; ++j)
{
var curpos = output.Position;
output.Position = dstpos;
dstpos += 4;
output.Read (buf, 0, 4);
output.Position = curpos;
output.Write (buf, 0, 4);
}
break;
}
case 7:
{
int l = input.ReadUInt16();
var dstpos = output.Position - (l << 2);
int i = input.ReadUInt16();
isize += 4;
for (int j = 0; j < i; ++j)
{
var curpos = output.Position;
output.Position = dstpos;
dstpos += 4;
output.Read (buf, 0, 4);
output.Position = curpos;
output.Write (buf, 0, 4);
}
break;
}
case 8:
{
var curpos = output.Position;
output.Position -= 4;
output.Read (buf, 0, 4);
output.Position = curpos;
output.Write (buf, 0, 4);
break;
}
case 9:
{
var curpos = output.Position;
output.Position -= meta.Width * 4;
output.Read (buf, 0, 4);
output.Position = curpos;
output.Write (buf, 0, 4);
break;
}
case 0x0a:
{
var curpos = output.Position;
output.Position -= meta.Width * 4 + 4;
output.Read (buf, 0, 4);
output.Position = curpos;
output.Write (buf, 0, 4);
break;
}
case 0x0b:
{
var curpos = output.Position;
output.Position -= meta.Width * 4 - 4;
output.Read (buf, 0, 4);
output.Position = curpos;
output.Write (buf, 0, 4);
break;
}
default:
for (int i = ctrl - 11; i > 0; --i)
{
int read = input.Read (buf, 0, 4);
if (4 != read)
throw new InvalidFormatException ("Unexpected end of input");
output.Write (buf, 0, 4);
isize += 4;
}
break;
}
}
return output.GetBuffer();
}
}
}
} }