示例#1
0
文件: ArcIFL.cs 项目: Casidi/GARbro
 public override Stream OpenEntry(ArcFile arc, Entry entry)
 {
     if (entry.Size <= 8
         || !entry.Name.EndsWith (".snc", StringComparison.InvariantCultureIgnoreCase)
         || !arc.File.View.AsciiEqual (entry.Offset, "CMP_"))
         return arc.File.CreateStream (entry.Offset, entry.Size);
     int unpacked_size = arc.File.View.ReadInt32 (entry.Offset+4);
     using (var input = arc.File.CreateStream (entry.Offset+8, entry.Size-8))
     using (var lzss = new LzssReader (input, (int)(entry.Size - 8), unpacked_size))
     {
         lzss.FrameFill = 0x20;
         lzss.Unpack();
         return new MemoryStream (lzss.Data);
     }
 }
示例#2
0
文件: ImageGR.cs 项目: Casidi/GARbro
 public override ImageData Read(Stream stream, ImageMetaData info)
 {
     var meta = (GrMetaData)info;
     using (var reader = new LzssReader (stream, (int)stream.Length, meta.UnpackedSize+2))
     {
         reader.Unpack();
         if (32 != info.BPP)
             using (var bmp = new MemoryStream (reader.Data))
                 return base.Read (bmp, info);
         int stride = (int)info.Width*4;
         var pixels = new byte[stride*info.Height];
         int dst = 0;
         int offset = 0x36;
         for (int src = stride*((int)info.Height-1); src >= 0; src -= stride)
         {
             Buffer.BlockCopy (reader.Data, offset+src, pixels, dst, stride);
             dst += stride;
         }
         return ImageData.Create (info, PixelFormats.Bgra32, null, pixels);
     }
 }
示例#3
0
文件: ArcLPK.cs 项目: Casidi/GARbro
 public override Stream OpenEntry(ArcFile arc, Entry entry)
 {
     if (0 == entry.Size)
         return Stream.Null;
     var larc = arc as LuciArchive;
     var lent = entry as LuciEntry;
     Stream input = arc.File.CreateStream (entry.Offset, entry.Size);
     if (null == larc || null == lent)
         return input;
     byte[] data;
     using (input)
     {
         if (lent.IsPacked)
         {
             using (var reader = new LzssReader (input, (int)lent.Size, (int)lent.UnpackedSize))
             {
                 reader.Unpack();
                 data = reader.Data;
             }
         }
         else
         {
             data = new byte[lent.Size];
             input.Read (data, 0, data.Length);
         }
     }
     if (larc.Info.WholeCrypt)
     {
         DecryptContent (data, larc.Scheme.ContentXor);
     }
     if (larc.Info.IsEncrypted)
     {
         int count = Math.Min (data.Length, 0x100);
         if (count != 0)
             DecryptEntry (data, count, larc.Info.Key, larc.Scheme.RotatePattern);
     }
     input = new MemoryStream (data);
     if (null != larc.Info.Prefix)
         return new PrefixStream (larc.Info.Prefix, input);
     else
         return input;
 }
示例#4
0
 static byte[] DecodeListBin(byte[] data)
 {
     var header = new byte[0x30];
     DecodeDPD (data, 0, 0x30, header);
     int packed_size = LittleEndian.ToInt32 (header, 0x0C);
     int unpacked_size = LittleEndian.ToInt32 (header, 0x10);
     if (packed_size <= 0 || packed_size > data.Length-0x30)
         return null;
     if (Binary.AsciiEqual (header, 0, "DPDC"))
     {
         var decrypted = new byte[packed_size];
         DecodeDPD (data, 0x30, packed_size, decrypted);
         return decrypted;
     }
     if (Binary.AsciiEqual (header, 0, "SZLC")) // LZSS
     {
         using (var input = new MemoryStream (data, 0x30, packed_size))
         using (var lzss = new LzssReader (input, packed_size, unpacked_size))
         {
             lzss.Unpack();
             return lzss.Data;
         }
     }
     if (Binary.AsciiEqual (header, 0, "ELRC")) // RLE
     {
         var unpacked = new byte[unpacked_size];
         int min_repeat = LittleEndian.ToInt32 (header, 0x1C);
         DecodeRLE (data, 0x30, packed_size, unpacked, min_repeat);
         return unpacked;
     }
     return null;
 }
示例#5
0
文件: ImageGR.cs 项目: Casidi/GARbro
 public override ImageMetaData ReadMetaData(Stream stream)
 {
     using (var reader = new LzssReader (stream, (int)stream.Length, 0x26)) // BMP header
     {
         reader.Unpack();
         var bmp = reader.Data;
         if (bmp[0] != 'B' || bmp[1] != 'M')
             return null;
         int file_size = LittleEndian.ToInt32 (bmp, 2);
         int width = LittleEndian.ToInt32 (bmp, 0x12);
         int height = LittleEndian.ToInt32 (bmp, 0x16);
         int bpp = LittleEndian.ToInt16 (bmp, 0x1c);
         int image_size = LittleEndian.ToInt32 (bmp, 0x22);
         if (0 == image_size)
             image_size = width * height * (bpp / 8);
         return new GrMetaData
         {
             Width = (uint)width,
             Height = (uint)height,
             BPP = bpp,
             UnpackedSize = 24 == bpp ? file_size : (image_size+0x36),
         };
     }
 }
示例#6
0
文件: ImageDRG.cs 项目: Casidi/GARbro
 public override ImageData Read(Stream file, ImageMetaData info)
 {
     var meta = (GgdMetaData)info;
     file.Position = meta.HeaderSize + 4;
     var palette_data = new byte[0x400];
     if (palette_data.Length != file.Read (palette_data, 0, palette_data.Length))
         throw new InvalidFormatException();
     var colors = new Color[256];
     for (int i = 0; i < 256; ++i)
     {
         colors[i] = Color.FromRgb (palette_data[i*4+2], palette_data[i*4+1], palette_data[i*4]);
     }
     file.Seek (4, SeekOrigin.Current);
     int input_size = (int)(file.Length - file.Position);
     using (var reader = new LzssReader (file, input_size, (int)meta.BitmapSize))
     {
         reader.Unpack();
         var palette = new BitmapPalette (colors);
         int stride = ((int)meta.Width + 3) & ~3;
         return ImageData.Create (info, PixelFormats.Indexed8, palette, reader.Data, stride);
     }
 }
示例#7
0
文件: ImageGRP.cs 项目: Casidi/GARbro
        // DOUBLE
        private ImageData ReadV2()
        {
            if (0 != m_info.PackedSize)
            {
                using (var reader = new LzssReader (m_input, m_info.PackedSize, m_info.UnpackedSize))
                {
                    reader.Unpack();
                    m_image_data = reader.Data;
                }
            }
            else
            {
                m_image_data = new byte[m_info.UnpackedSize];
                if (m_image_data.Length != m_input.Read (m_image_data, 0, m_image_data.Length))
                    throw new InvalidFormatException ("Unexpected end of file");
            }
            int pixels_offset = 0;
            if (8 == m_info.BPP)
            {
                SetPalette (m_image_data);
                pixels_offset += 0x400;
            }

            if (0 == pixels_offset)
                return ImageData.Create (m_info, Format, Palette, m_image_data);

            if (pixels_offset + m_stride*(int)m_info.Height > m_image_data.Length)
                throw new InvalidFormatException();
            unsafe
            {
                fixed (byte* pixels = &m_image_data[pixels_offset])
                {
                    var bitmap = BitmapSource.Create ((int)m_info.Width, (int)m_info.Height,
                        ImageData.DefaultDpiX, ImageData.DefaultDpiY, Format, Palette,
                        (IntPtr)pixels, m_image_data.Length-pixels_offset, m_stride);
                    bitmap.Freeze();
                    return new ImageData (bitmap, m_info);
                }
            }
        }
示例#8
0
文件: ImageGRP.cs 项目: Casidi/GARbro
        private ImageData ReadV1()
        {
            if (8 == m_info.BPP)
            {
                var palette_data = new byte[0x400];
                if (palette_data.Length != m_input.Read (palette_data, 0, palette_data.Length))
                    throw new InvalidFormatException ("Unexpected end of file");
                SetPalette (palette_data);
            }
            var packed = new byte[m_info.PackedSize];
            if (packed.Length != m_input.Read (packed, 0, packed.Length))
                throw new InvalidFormatException ("Unexpected end of file");
            for (int i = 0; i < packed.Length; ++i)
                packed[i] ^= (byte)i;

            using (var input = new MemoryStream (packed))
            using (var reader = new LzssReader (input, packed.Length, m_info.UnpackedSize))
            {
                reader.Unpack();
                m_image_data = new byte[m_info.UnpackedSize];
                // flip pixels vertically
                int dst = 0;
                for (int src = m_stride * ((int)m_info.Height-1); src >= 0; src -= m_stride)
                {
                    Buffer.BlockCopy (reader.Data, src, m_image_data, dst, m_stride);
                    dst += m_stride;
                }
            }
            return ImageData.Create (m_info, Format, Palette, m_image_data);
        }