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feat: LBG/PS2-SPC Image Format

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This commit is contained in:
ManicSteiner 2023-12-16 15:27:26 +08:00
parent 3443a2d16f
commit da4b6574da
3 changed files with 106 additions and 0 deletions
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1
ArcFormats/ArcFormats.csproj
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@ -132,6 +132,7 @@
<Compile Include="GScripter\ArcDATA.cs" />
<Compile Include="Ism\ImagePNG.cs" />
<Compile Include="Kid\ArcDATRAW.cs" />
<Compile Include="Kid\ImageLBG.cs" />
<Compile Include="Kogado\ArcARC.cs" />
<Compile Include="Ice\ImageIBM.cs" />
<Compile Include="Ice\ScriptISD.cs" />

1
ArcFormats/Cri/ArcSPC.cs
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@ -77,6 +77,7 @@ namespace GameRes.Formats.Cri
var entry = Create<PackedEntry>(base_name);
entry.Offset = 0;
entry.Size = (uint)input.Length;
entry.Type = "image";
dir.Add(entry);
return new SpcArchive(file, this, dir, input);
}

104
ArcFormats/Kid/ImageLBG.cs Normal file
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@ -0,0 +1,104 @@
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.Windows.Media.Imaging;
using System.Windows.Media;
using System.IO;
namespace GameRes.Formats.Kid
{
[Export(typeof(ImageFormat))]
public class LbgFormat : ImageFormat
{
public override string Tag { get { return "LBG/PS2-SPC Image Format"; } }
public override string Description { get { return "KID PS2 SPC Image Format"; } }
public override uint Signature { get { return 0; } } //0x10000000, real signature below
public LbgFormat()
{
Extensions = new string[] { "", "lbg" };
}
public override ImageMetaData ReadMetaData(IBinaryStream file)
{
uint header = file.ReadUInt32();
uint overheader = 0;
if (header != 0x2047424C) //LBG\x20
{
overheader = header;
if (overheader > 0x100)
return null;
file.Seek(overheader, SeekOrigin.Begin);
header = file.ReadUInt32();
if (header != 0x2047424C)
return null;
}
int width = file.ReadInt16();
int height = file.ReadInt16();
if (width <= 0 || height <= 0)
return null;
return new LbgImageMetaData
{
Width = (uint)width,
Height = (uint)height,
OverHeader = overheader,
};
}
public override ImageData Read(IBinaryStream file, ImageMetaData info)
{
if (info == null)
throw new NotSupportedException(string.Format("Not LBG texture format."));
/*if (info.Width != 640)
{
throw new NotSupportedException(string.Format("Not 640 pixels width, may not work."));
}*/
var lbgheader = (LbgImageMetaData)info;
uint oversize = 0;
uint blocknum = info.Width / 126;
if (lbgheader.OverHeader != 0)
{
file.Position = 4;
uint filesize = file.ReadUInt32() - 16;
oversize = (filesize - info.Width * info.Height * 4) / info.Height / (blocknum + 1);
}
file.Position = lbgheader.OverHeader + 0x10;
//List<byte> pixels = new List<byte>();
byte[] pixels = new byte[info.Width * info.Height * 4];
for (int blockcount = 0; blockcount <= blocknum; blockcount++)
{
for (int y = 0; y < info.Height; y++)
{
for (int x = 0; (blockcount != blocknum & x < 126) | (blockcount == blocknum & x < info.Width - blockcount * 126); x++)
{
var pixel = file.ReadBytes(4); //RGBA with wrong A
long target = (x + blockcount * 126) * 4 + y * info.Width * 4;
//BGRA
pixels[target] = pixel[2];
pixels[target + 1] = pixel[1];
pixels[target + 2] = pixel[0];
if (pixel[3] >= byte.MaxValue / 2)
pixels[target + 3] = byte.MaxValue;
else
pixels[target + 3] = (byte)(pixel[3] << 1); //needs a test
}
if (oversize != 0)
file.ReadBytes((int)oversize);
}
}
return ImageData.Create(info, PixelFormats.Bgra32, null, pixels);
}
public override void Write(Stream file, ImageData bitmap)
{
throw new NotImplementedException("LbgFormat.Write not implemented");
}
}
class LbgImageMetaData : ImageMetaData
{
public uint OverHeader { get; set; }
}
}