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(HG2): support limited depth images.
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parent
4664274125
commit
3f672e8594
@ -31,10 +31,12 @@ namespace GameRes.Formats.CatSystem
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{
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internal class Hg2MetaData : HgMetaData
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{
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public int Version;
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public int DataPacked;
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public int DataUnpacked;
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public int CtlPacked;
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public int CtlUnpacked;
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public int Depth;
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}
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[Export(typeof(ImageFormat))]
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@ -57,9 +59,11 @@ namespace GameRes.Formats.CatSystem
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info.HeaderSize = 0x30;
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else
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return null;
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info.Version = version;
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info.Width = stream.ReadUInt32();
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info.Height = stream.ReadUInt32();
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info.BPP = stream.ReadInt32();
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info.BPP = stream.ReadInt16();
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info.Depth = stream.ReadInt16();
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stream.Seek (8, SeekOrigin.Current);
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info.DataPacked = stream.ReadInt32();
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info.DataUnpacked = stream.ReadInt32();
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@ -94,16 +98,7 @@ namespace GameRes.Formats.CatSystem
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public override ImageData Image
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{
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get
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{
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if (null == m_image)
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{
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var pixels = Unpack();
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var format = 24 == m_hg2.BPP ? PixelFormats.Bgr24 : PixelFormats.Bgra32;
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m_image = ImageData.CreateFlipped (m_hg2, format, null, pixels, Stride);
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}
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return m_image;
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}
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get { return m_image ?? (m_image = CreateImage()); }
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}
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public Hg2Reader (IBinaryStream input, Hg2MetaData info) : base (input, info)
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@ -111,10 +106,30 @@ namespace GameRes.Formats.CatSystem
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m_hg2 = info;
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}
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public byte[] Unpack ()
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ImageData CreateImage ()
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{
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return UnpackStream (m_hg2.HeaderSize, m_hg2.DataPacked, m_hg2.DataUnpacked,
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m_hg2.CtlPacked, m_hg2.CtlUnpacked);
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var pixels = UnpackStream (m_hg2.HeaderSize, m_hg2.DataPacked, m_hg2.DataUnpacked,
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m_hg2.CtlPacked, m_hg2.CtlUnpacked);
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var format = 24 == m_hg2.BPP ? PixelFormats.Bgr24 : PixelFormats.Bgra32;
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if (m_hg2.Version > 0x10)
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return ImageData.CreateFlipped (m_hg2, format, null, pixels, Stride);
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if (m_hg2.Depth > 0 && m_hg2.Depth < 8)
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{
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byte max = (byte)((1 << m_hg2.Depth) - 1);
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for (int i = 0; i < pixels.Length; i += m_pixel_size)
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{
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pixels[i ] = (byte)(pixels[i ] * 0xFF / max);
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pixels[i+1] = (byte)(pixels[i+1] * 0xFF / max);
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pixels[i+2] = (byte)(pixels[i+2] * 0xFF / max);
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}
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}
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if (32 == m_hg2.BPP)
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{
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for (int i = 3; i < pixels.Length; i += 4)
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pixels[i] ^= 0xFF;
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}
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return ImageData.Create (m_hg2, format, null, pixels, Stride);
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}
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}
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}
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