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(HG2): support limited depth images.

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This commit is contained in:
morkt 2019-03-11 10:46:01 +04:00
parent 4664274125
commit 3f672e8594
1 changed files with 29 additions and 14 deletions
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43
ArcFormats/CatSystem/ImageHG2.cs
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@ -31,10 +31,12 @@ namespace GameRes.Formats.CatSystem
{
internal class Hg2MetaData : HgMetaData
{
public int Version;
public int DataPacked;
public int DataUnpacked;
public int CtlPacked;
public int CtlUnpacked;
public int Depth;
}
[Export(typeof(ImageFormat))]
@ -57,9 +59,11 @@ namespace GameRes.Formats.CatSystem
info.HeaderSize = 0x30;
else
return null;
info.Version = version;
info.Width = stream.ReadUInt32();
info.Height = stream.ReadUInt32();
info.BPP = stream.ReadInt32();
info.BPP = stream.ReadInt16();
info.Depth = stream.ReadInt16();
stream.Seek (8, SeekOrigin.Current);
info.DataPacked = stream.ReadInt32();
info.DataUnpacked = stream.ReadInt32();
@ -94,16 +98,7 @@ namespace GameRes.Formats.CatSystem
public override ImageData Image
{
get
{
if (null == m_image)
{
var pixels = Unpack();
var format = 24 == m_hg2.BPP ? PixelFormats.Bgr24 : PixelFormats.Bgra32;
m_image = ImageData.CreateFlipped (m_hg2, format, null, pixels, Stride);
}
return m_image;
}
get { return m_image ?? (m_image = CreateImage()); }
}
public Hg2Reader (IBinaryStream input, Hg2MetaData info) : base (input, info)
@ -111,10 +106,30 @@ namespace GameRes.Formats.CatSystem
m_hg2 = info;
}
public byte[] Unpack ()
ImageData CreateImage ()
{
return UnpackStream (m_hg2.HeaderSize, m_hg2.DataPacked, m_hg2.DataUnpacked,
m_hg2.CtlPacked, m_hg2.CtlUnpacked);
var pixels = UnpackStream (m_hg2.HeaderSize, m_hg2.DataPacked, m_hg2.DataUnpacked,
m_hg2.CtlPacked, m_hg2.CtlUnpacked);
var format = 24 == m_hg2.BPP ? PixelFormats.Bgr24 : PixelFormats.Bgra32;
if (m_hg2.Version > 0x10)
return ImageData.CreateFlipped (m_hg2, format, null, pixels, Stride);
if (m_hg2.Depth > 0 && m_hg2.Depth < 8)
{
byte max = (byte)((1 << m_hg2.Depth) - 1);
for (int i = 0; i < pixels.Length; i += m_pixel_size)
{
pixels[i ] = (byte)(pixels[i ] * 0xFF / max);
pixels[i+1] = (byte)(pixels[i+1] * 0xFF / max);
pixels[i+2] = (byte)(pixels[i+2] * 0xFF / max);
}
}
if (32 == m_hg2.BPP)
{
for (int i = 3; i < pixels.Length; i += 4)
pixels[i] ^= 0xFF;
}
return ImageData.Create (m_hg2, format, null, pixels, Stride);
}
}
}