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(GPS): alterantive header.

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This commit is contained in:
morkt 2019-03-11 10:44:00 +04:00
parent ae7db58c11
commit 5e3981523b
1 changed files with 21 additions and 10 deletions
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31
ArcFormats/Abel/ImageGPS.cs
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@ -35,6 +35,7 @@ namespace GameRes.Formats.Abel
internal class GpsMetaData : ImageMetaData
{
public byte Compression;
public int HeaderSize;
public int PackedSize;
public int UnpackedSize;
}
@ -55,16 +56,24 @@ namespace GameRes.Formats.Abel
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x29);
if (header.Length != 0x29)
return null;
var gps = new GpsMetaData
var gps = new GpsMetaData();
if (header.ToUInt32 (4) == 0xCCCCCCCC)
{
Width = header.ToUInt32 (0x19),
Height = header.ToUInt32 (0x1D),
Compression = header[0x10],
UnpackedSize = header.ToInt32 (0x11),
PackedSize = header.ToInt32 (0x15),
};
gps.HeaderSize = 0x19;
gps.Compression = 2;
gps.UnpackedSize = header.ToInt32 (0x9);
gps.PackedSize = header.ToInt32 (0xD);
}
else
{
gps.HeaderSize = 0x29;
gps.Compression = header[0x10];
gps.UnpackedSize = header.ToInt32 (0x11);
gps.PackedSize = header.ToInt32 (0x15);
gps.Width = header.ToUInt32 (0x19);
gps.Height = header.ToUInt32 (0x1D);
}
file.Position = gps.HeaderSize;
// read BMP header
using (var stream = OpenGpsStream (file, gps.Compression, 0x54))
using (var input = BinaryStream.FromStream (stream, file.Name))
@ -73,6 +82,8 @@ namespace GameRes.Formats.Abel
if (null == bmp_info)
return null;
gps.BPP = bmp_info.BPP;
gps.Width = bmp_info.Width;
gps.Height = bmp_info.Height;
return gps;
}
}
@ -80,7 +91,7 @@ namespace GameRes.Formats.Abel
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var gps = (GpsMetaData)info;
file.Position = 0x29;
file.Position = gps.HeaderSize;
using (var stream = OpenGpsStream (file, gps.Compression, gps.UnpackedSize))
using (var input = BinaryStream.FromStream (stream, file.Name))
return Bmp.Read (input, info);