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implemented CGF and IAF image sets.

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This commit is contained in:
morkt
2016-02-04 05:58:47 +04:00
parent 0fe5d01ed7
commit f502e9578c
5 changed files with 243 additions and 63 deletions
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100
ArcFormats/Triangle/ImageIAF.cs
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@@ -76,46 +76,20 @@ namespace GameRes.Formats.Triangle
if (Math.Abs (x) > 4096 || Math.Abs (y) > 4096)
return null;
int pack_type = (unpacked_size >> 30) & 3;
if (3 == pack_type)
return null;
unpacked_size &= (int)~0xC0000000;
stream.Position = data_offset;
byte[] bmp;
if (0 == pack_type)
{
using (var reader = new LzssReader (stream, (int)stream.Length-12, 0x26))
{
reader.Unpack();
bmp = reader.Data;
}
}
else if (2 == pack_type)
{
using (var reader = new RleReader (stream, (int)stream.Length-12, 0x26))
{
reader.Unpack();
bmp = reader.Data;
}
}
else if (1 == pack_type)
{
bmp = new byte[0x26];
stream.Read (bmp, 0, bmp.Length);
}
else
{
return null;
}
byte[] bmp = UnpackBitmap (stream, pack_type, packed_size, 0x26);
if (bmp[0] != 'B' && bmp[0] != 'C' || bmp[1] != 'M')
return null;
int width = LittleEndian.ToInt32 (bmp, 0x12);
int height = LittleEndian.ToInt32 (bmp, 0x16);
int bpp = LittleEndian.ToInt16 (bmp, 0x1c);
return new IafMetaData
{
Width = (uint)width,
Height = (uint)height,
Width = LittleEndian.ToUInt32 (bmp, 0x12),
Height = LittleEndian.ToUInt32 (bmp, 0x16),
OffsetX = x,
OffsetY = y,
BPP = bpp,
BPP = LittleEndian.ToInt16 (bmp, 0x1c),
DataOffset = data_offset,
PackedSize = packed_size,
UnpackedSize = unpacked_size,
@@ -125,41 +99,16 @@ namespace GameRes.Formats.Triangle
public override ImageData Read (Stream stream, ImageMetaData info)
{
var meta = info as IafMetaData;
if (null == meta)
throw new ArgumentException ("IafFormat.Read should be supplied with IafMetaData", "info");
var meta = (IafMetaData)info;
stream.Position = meta.DataOffset;
byte[] bitmap;
if (2 == meta.PackType)
{
using (var reader = new RleReader (stream, meta.PackedSize, meta.UnpackedSize))
{
reader.Unpack();
bitmap = reader.Data;
}
}
else if (0 == meta.PackType)
{
using (var reader = new LzssReader (stream, meta.PackedSize, meta.UnpackedSize))
{
reader.Unpack();
bitmap = reader.Data;
}
}
else
{
bitmap = new byte[meta.UnpackedSize];
if (bitmap.Length != stream.Read (bitmap, 0, bitmap.Length))
throw new InvalidFormatException ("Unexpected end of file");
}
var bitmap = UnpackBitmap (stream, meta.PackType, meta.PackedSize, meta.UnpackedSize);
if ('C' == bitmap[0])
{
bitmap[0] = (byte)'B';
if (info.BPP > 8)
bitmap = ConvertCM (bitmap, (int)info.Width, (int)info.Height, info.BPP);
}
if (meta.BPP >= 24) // currently alpha channel could be applied to 24+bpp bitmaps only
if (info.BPP >= 24) // currently alpha channel could be applied to 24+bpp bitmaps only
{
try
{
@@ -172,7 +121,7 @@ namespace GameRes.Formats.Triangle
uint alpha_width = LittleEndian.ToUInt32 (bitmap, bmp_size+0x12);
uint alpha_height = LittleEndian.ToUInt32 (bitmap, bmp_size+0x16);
if (info.Width == alpha_width && info.Height == alpha_height)
return BitmapWithAlphaChannel (meta, bitmap, bmp_size);
return BitmapWithAlphaChannel (info, bitmap, bmp_size);
}
}
}
@@ -186,6 +135,35 @@ namespace GameRes.Formats.Triangle
return base.Read (bmp, info);
}
internal static byte[] UnpackBitmap (Stream stream, int pack_type, int packed_size, int unpacked_size)
{
if (2 == pack_type)
{
using (var reader = new RleReader (stream, packed_size, unpacked_size))
{
reader.Unpack();
return reader.Data;
}
}
else if (0 == pack_type)
{
using (var reader = new LzssReader (stream, packed_size, unpacked_size))
{
reader.Unpack();
return reader.Data;
}
}
else if (1 == pack_type)
{
var bitmap = new byte[unpacked_size];
if (bitmap.Length != stream.Read (bitmap, 0, bitmap.Length))
throw new InvalidFormatException ("Unexpected end of file");
return bitmap;
}
else
throw new InvalidFormatException();
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("IafFormat.Write not implemented");