Example #1
0
 public void Unpack()
 {
     m_input.Position = m_info.DataOffset;
     if (0 == m_info.CompressionMode)
     {
         if (1 == m_info.ColorMode)
         {
             int dst = 0;
             for (int count = m_info.DataSize / 3; count > 0; --count)
             {
                 m_input.Read(m_output, dst, 3);
                 dst += 4;
             }
         }
         else
         {
             m_input.Read(m_output, 0, m_info.DataSize);
         }
     }
     else
     {
         Action <int, int> unpacker;
         if (1 == m_info.CompressionMode)
         {
             unpacker = UnpackRle;
         }
         else
         {
             unpacker = UnpackLz;
         }
         if (0 == m_info.ColorMode)
         {
             for (int channel = 0; channel < 4; ++channel)
             {
                 unpacker(channel, 4);
             }
         }
         else if (1 == m_info.ColorMode)
         {
             for (int channel = 0; channel < 3; ++channel)
             {
                 unpacker(channel, 4);
             }
         }
         else
         {
             unpacker(0, 1);
         }
     }
 }
Example #2
0
        void Unpack24bpp()
        {
            int pixel_size = 3;
            var pixel      = new byte[4];
            var block      = new byte[64];

            for (int y = 0; y < m_info.BlocksHeight; ++y)
            {
                for (int x = 0; x < m_info.BlocksWidth; ++x)
                {
                    byte ctl = m_control[x + m_info.BlocksWidth * (m_info.BlocksHeight - y - 1)];
                    if (0x80 == ctl)
                    {
                        int dst = pixel_size * 8 * (x + 8 * y * m_info.BlocksWidth);
                        for (int i = 0; i < 8; ++i)
                        {
                            for (int j = 0; j < 24; ++j)
                            {
                                m_output[dst + j] = 0;
                            }
                            dst += m_src_stride;
                        }
                    }
                    else
                    {
                        m_input.Read(pixel, 0, pixel_size);
                        for (int channel = 0; channel < pixel_size; ++channel)
                        {
                            DecodeBlock(ctl & 3, pixel[channel], block);
                            int dst = pixel_size * 8 * (x + 8 * y * m_info.BlocksWidth) + channel;
                            int src = 0;
                            for (int i = 0; i < 8; ++i)
                            {
                                m_output[dst]      = block[src++];
                                m_output[dst + 3]  = block[src++];
                                m_output[dst + 6]  = block[src++];
                                m_output[dst + 9]  = block[src++];
                                m_output[dst + 12] = block[src++];
                                m_output[dst + 15] = block[src++];
                                m_output[dst + 18] = block[src++];
                                m_output[dst + 21] = block[src++];
                                dst += m_src_stride;
                            }
                            ctl >>= 2;
                        }
                    }
                }
            }
        }
Example #3
0
        public override ImageData Read(IBinaryStream file, ImageMetaData info)
        {
            var meta = (RbpMetaData)info;

            file.Position = meta.DataOffset;
            int stride = 4 * (int)meta.Width;
            var pixels = new byte[stride * (int)meta.Height];

            if (24 == meta.BPP)
            {
                for (int i = 0; i < pixels.Length; i += 4)
                {
                    int pixel = file.ReadInt24();
                    pixels[i]     = (byte)(pixel << 3);
                    pixels[i + 1] = (byte)((pixel >> 3) & 0xFC);
                    pixels[i + 2] = (byte)((pixel >> 8) & 0xF8);
                    pixels[i + 3] = (byte)((pixel >> 16) * 0xFF / 0x3F);
                }
            }
            else
            {
                file.Read(pixels, 0, pixels.Length);
                for (int i = 3; i < pixels.Length; i += 4)
                {
                    byte alpha = pixels[i];
                    if (alpha != 0)
                    {
                        pixels[i] = (byte)(alpha * 0xFF / 0x3F);
                    }
                }
            }
            return(ImageData.Create(info, PixelFormats.Bgra32, null, pixels, stride));
        }
Example #4
0
        byte[] ReadChunks()
        {
            var buffer = new byte[0x10000 * m_info.ChunkCount + m_info.LastChunkSize];
            int dst    = 0;

            for (int i = 0; i <= m_info.ChunkCount; ++i)
            {
                int  length        = Binary.BigEndian(m_input.ReadInt32());
                bool is_compressed = length < 0;
                length &= 0x7FFFFFFF;
                if (is_compressed)
                {
                    int unpacked_size = Math.Min(0x10000, buffer.Length - dst);
                    using (var region = new StreamRegion(m_input.AsStream, m_input.Position, length, true))
                        using (var zinput = new ZLibStream(region, CompressionMode.Decompress, true))
                        {
                            dst += zinput.Read(buffer, dst, unpacked_size);
                        }
                }
                else
                {
                    dst += m_input.Read(buffer, dst, length);
                }
            }
            return(buffer);
        }
Example #5
0
        void ReadGms(IBinaryStream input)
        {
            var header = new byte[0x10];

            if (0x10 != input.Read(header, 0, 0x10))
            {
                throw new EndOfStreamException();
            }
            byte swap = header[13];

            header[13] = header[9];
            header[9]  = swap;
            swap       = header[15];
            header[15] = header[11];
            header[11] = swap;
            swap       = header[4];
            header[4]  = header[8];
            header[8]  = swap;
            swap       = header[6];
            header[6]  = header[10];
            header[10] = swap;
            int unpacked_size = LittleEndian.ToInt32(header, 12);
            var gms_info      = new byte[unpacked_size];

            LzssUnpack(input, gms_info);

            // foreach (byte in gms_info) byte ^= 0xFF
            // decrypted array contains image meta data (see InfoReader class)
        }
Example #6
0
        public override ImageData Read(IBinaryStream 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.AsStream, 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));
            }
        }
Example #7
0
        byte[] ReadAlphaChannel()
        {
            var header = new byte[0x24];

            if (0x24 != m_input.Read(header, 0, header.Length))
            {
                return(null);
            }
            if (!Binary.AsciiEqual(header, 0, "ACIF"))
            {
                return(null);
            }
            int unpacked_size = LittleEndian.ToInt32(header, 0x1C);
            int packed_size   = LittleEndian.ToInt32(header, 0x20);

            if (m_width * m_height != unpacked_size)
            {
                return(null);
            }
            var alpha = new byte[unpacked_size];

            using (var unpacked = OpenSection(m_input.AsStream, unpacked_size, packed_size))
                if (unpacked_size != unpacked.Read(alpha, 0, unpacked_size))
                {
                    return(null);
                }
            return(alpha);
        }
Example #8
0
        public override SoundInput TryOpen(IBinaryStream file)
        {
            var  header       = file.ReadHeader(10).ToArray();
            long start_offset = SkipId3Tag(header);
            int  sync_pos     = 0;

            if (0 != start_offset)
            {
                file.Position = start_offset;
                if (4 != file.Read(header, 0, 4))
                {
                    return(null);
                }
            }
            else if (0xFF != header[0])
            {
                file.Position = 1;
                header        = file.ReadBytes(SyncSearchThreshold);
                sync_pos      = System.Array.IndexOf <byte> (header, 0xFF, 1, SyncSearchThreshold - 4);
                if (-1 == sync_pos)
                {
                    return(null);
                }
            }
            if (0xFF != header[sync_pos] || 0xE2 != (header[sync_pos + 1] & 0xE6) || 0xF0 == (header[sync_pos + 2] & 0xF0))
            {
                return(null);
            }
            file.Position = 0;
            return(new Mp3Input(file.AsStream));
        }
Example #9
0
 public Reader(IBinaryStream input, Pt1MetaData info)
 {
     m_type         = info.Type;
     m_input        = new byte[info.PackedSize + 8];
     input.Position = 0x20;
     if (info.PackedSize != input.Read(m_input, 0, info.PackedSize))
     {
         throw new InvalidFormatException("Unexpected end of file");
     }
     m_width  = (int)info.Width;
     m_height = (int)info.Height;
     m_output = new byte[info.UnpackedSize];
     m_stride = m_width * 3;
     if (3 == m_type)
     {
         Format = PixelFormats.Bgra32;
         int packed_size = input.ReadInt32();
         m_alpha_packed = input.ReadBytes(packed_size);
         if (m_alpha_packed.Length != packed_size)
         {
             throw new EndOfStreamException();
         }
     }
     else
     {
         Format = PixelFormats.Bgr24;
     }
 }
Example #10
0
        public override ImageData Read(IBinaryStream stream, ImageMetaData info)
        {
            var pixels = new byte[info.Width * info.Height * 4];

            stream.Position = 0x18;
            int dst = 0;

            for (uint y = 0; y < info.Height; ++y)
            {
                while (dst < pixels.Length)
                {
                    byte a = stream.ReadUInt8();
                    if (0 == a)
                    {
                        byte count = stream.ReadUInt8();
                        if (0 == count)
                        {
                            break;
                        }
                        dst += count * 4;
                    }
                    else
                    {
                        stream.Read(pixels, dst, 3);
                        pixels[dst + 3] = (byte)a;
                        dst            += 4;
                    }
                }
            }
            return(ImageData.Create(info, PixelFormats.Bgra32, null, pixels));
        }
Example #11
0
        void UnpackStream(byte[] output, int packed_size)
        {
            if (0 == packed_size)
            {
                m_input.Read(output, 0, output.Length);
                return;
            }
            var input     = m_input.AsStream;
            var input_pos = m_input.Position;

            if (m_info.IsEncrypted)
            {
                input = new StreamRegion(input, input_pos, packed_size, true);
                input = new InputCryptoStream(input, new SjTransform(m_info.Key));
            }
            try
            {
                UnpackRle(input, output);
            }
            finally
            {
                if (input != m_input.AsStream)
                {
                    input.Dispose();
                }
                m_input.Position = input_pos + packed_size;
            }
        }
Example #12
0
        public byte[] Unpack()
        {
            if (99 == m_info.Version)
            {
                return(ReadGrayScale());
            }
            m_input.Position = m_info.DataOffset;
            if (10 == m_info.Version)
            {
                Palette = ImageFormat.ReadPalette(m_input.AsStream, 0x100, PaletteFormat.Bgr);
            }
            m_input.Read(m_output, 0, m_output.Length);
            if (!m_info.HasAlpha)
            {
                return(m_output);
            }
            m_input.Position = m_info.AlphaOffset;
            int plane_size = (int)m_info.Width * (int)m_info.Height;
            var alpha      = new byte[plane_size];

            RleUnpack(m_input, m_info.AlphaRleCount, alpha);
            var pixels = new byte[4 * plane_size];

            if (8 == m_info.BPP)
            {
                ApplyAlpha8bpp(alpha, pixels);
            }
            else
            {
                ApplyAlpha24bpp(alpha, pixels);
            }
            return(pixels);
        }
Example #13
0
        void UnpackStream8(IBinaryStream input, byte[] output, byte[] alpha)
        {
            int alpha_dst = 0;
            int dst       = 0;

            while (dst < output.Length)
            {
                byte rle = input.ReadUInt8();
                if (0 == rle)
                {
                    int skip = input.ReadUInt8();
                    dst       += skip;
                    alpha_dst += skip;
                }
                else if (rle != 0xFF)
                {
                    output[dst++]      = input.ReadUInt8();
                    alpha[alpha_dst++] = rle;
                }
                else
                {
                    int count = input.ReadUInt8();
                    input.Read(output, dst, count);
                    dst += count;
                    for (int i = 0; i < count; ++i)
                    {
                        alpha[alpha_dst++] = 0xFF;
                    }
                }
            }
        }
Example #14
0
        public override ImageData Read(IBinaryStream file, ImageMetaData info)
        {
            file.Position = 0x1C;
            var palette = ReadPalette(file.AsStream);

            if (info.BPP != 32)
            {
                var pixels = new byte[info.iWidth * info.iHeight];
                file.Read(pixels, 0, pixels.Length);
                return(ImageData.CreateFlipped(info, PixelFormats.Indexed8, palette, pixels, info.iWidth));
            }
            else
            {
                int stride   = info.iWidth * 4;
                var pixels   = new byte[stride * info.iHeight];
                var colormap = palette.Colors;
                for (int dst = 0; dst < pixels.Length; dst += 4)
                {
                    byte c = file.ReadUInt8();
                    pixels[dst]     = colormap[c].B;
                    pixels[dst + 1] = colormap[c].G;
                    pixels[dst + 2] = colormap[c].R;
                    pixels[dst + 3] = file.ReadUInt8();
                }
                return(ImageData.CreateFlipped(info, PixelFormats.Bgra32, null, pixels, stride));
            }
        }
Example #15
0
        void UnpackChannel(IBinaryStream input, byte[] output)
        {
            int dst = 0;

            while (dst < output.Length)
            {
                int count = input.ReadByte();
                if (count < 0)
                {
                    break;
                }
                if (count <= 0x32)
                {
                    input.Read(output, dst, count);
                    dst += count;
                }
                else
                {
                    count -= 0x32;
                    byte v = input.ReadUInt8();
                    while (count-- > 0)
                    {
                        output[dst++] = v;
                    }
                }
            }
        }
Example #16
0
        public override ImageData Read(IBinaryStream file, ImageMetaData info)
        {
            var output = new byte[info.Width * info.Height];
            var table  = new int[info.Height * 4];

            file.Position = 12;
            for (int i = 0; i < table.Length; ++i)
            {
                table[i] = file.ReadInt32();
            }
            int stride   = (int)info.Width;
            int height   = (int)info.Height;
            int row      = 0;
            int data_pos = height * 16 + 12;
            int dst      = 0;

            for (int y = 0; y < height; ++y)
            {
                if (table[row] != 0)
                {
                    file.Position = table[row + 3] + data_pos;
                    file.Read(output, dst + table[row + 1], table[row + 2]);
                }
                row += 4;
                dst += stride;
            }
            return(ImageData.Create(info, PixelFormats.Gray8, null, output));
        }
Example #17
0
        void Unpack24()
        {
            int dst  = 0;
            int bits = 0;
            int mask = 0;

            while (dst < m_output.Length)
            {
                mask >>= 1;
                if (0 == mask)
                {
                    bits = m_input.ReadByte();
                    mask = 0x80;
                }
                if (0 != (bits & mask))
                {
                    m_input.Read(m_output, dst, 3);
                    dst += 4;
                }
                else
                {
                    int offset = m_input.ReadUInt16();
                    int count  = (1 + (offset & 0xF)) * 4;
                    offset = (1 + (offset >> 4)) * 4;
                    Binary.CopyOverlapped(m_output, dst - offset, dst, count);
                    dst += count;
                }
            }
        }
Example #18
0
        void UnpackKeyFrame(IBinaryStream input, byte[] output)
        {
            int last = -1;
            int dst  = 0;

            while (dst < output.Length)
            {
                if (input.Read(output, dst, 3) < 3)
                {
                    break;
                }
                int color = output[dst] | output[dst + 1] << 8 | output[dst + 2] << 16;
                dst += 3;
                if (color == last)
                {
                    int count = ReadInteger(input);
                    if (-1 == count)
                    {
                        break;
                    }
                    if (count > 2)
                    {
                        count = Math.Min((count - 2) * 3, output.Length - dst);
                        Binary.CopyOverlapped(output, dst - 3, dst, count);
                        dst += count;
                    }
                }
                last = color;
            }
        }
Example #19
0
        public override ImageData Read(IBinaryStream file, ImageMetaData info)
        {
            var meta = (Bm_MetaData)info;

            file.Position = 0x18;
            var palette = ReadPalette(file.AsStream);
            var pixels  = new byte[info.Width * info.Height];

            file.Position = 0x424;
            if (meta.IsCompressed)
            {
                ReadRle(file, pixels, meta.RleFlag);
            }
            else
            {
                file.Read(pixels, 0, pixels.Length);
            }
            if (meta.IsCompressed)
            {
                return(ImageData.Create(info, PixelFormats.Indexed8, palette, pixels));
            }
            else
            {
                return(ImageData.CreateFlipped(info, PixelFormats.Indexed8, palette, pixels, info.iWidth));
            }
        }
Example #20
0
        public override ImageData Read(IBinaryStream file, ImageMetaData info)
        {
            var meta = (MfgMetaData)info;

            file.Position = 0x14;
            if ('_' != meta.Type)
            {
                for (uint i = 0; i < meta.Height; ++i)
                {
                    uint n = file.ReadUInt32();
                    file.Seek(n * 8, SeekOrigin.Current);
                }
            }
            byte[] pixels = new byte[meta.Stride * info.Height];
            if (pixels.Length != file.Read(pixels, 0, pixels.Length))
            {
                throw new InvalidFormatException("Unexpected end of file");
            }
            PixelFormat format;

            if (24 == meta.BPP)
            {
                format = PixelFormats.Bgr24;
            }
            else
            {
                format = PixelFormats.Bgra32;
            }
            return(ImageData.Create(info, format, null, pixels, meta.Stride));
        }
Example #21
0
        /// <summary>
        /// Reads an instance from stream.
        /// </summary>
        /// <param name="stream">The stream.</param>
        /// <param name="position">The position.</param>
        /// <returns>Instance of the header.</returns>
        public static unsafe BinaryObjectHeader Read(IBinaryStream stream, int position)
        {
            Debug.Assert(stream != null);
            Debug.Assert(position >= 0);

            stream.Seek(position, SeekOrigin.Begin);

            BinaryObjectHeader hdr;

            if (BitConverter.IsLittleEndian)
            {
                stream.Read((byte *)&hdr, Size);

                Debug.Assert(hdr.Version == BinaryUtils.ProtoVer);
                Debug.Assert(hdr.SchemaOffset <= hdr.Length);
                Debug.Assert(hdr.SchemaOffset >= Size || !hdr.HasSchema);
            }
            else
            {
                hdr = new BinaryObjectHeader(stream);
            }

            // Only one of the flags can be set
            var f = hdr.Flags;

            Debug.Assert((f & (Flag.OffsetOneByte | Flag.OffsetTwoBytes)) !=
                         (Flag.OffsetOneByte | Flag.OffsetTwoBytes));
            return(hdr);
        }
Example #22
0
 public byte[] Unpack()
 {
     m_input.Position = m_info.DataOffset;
     if ('b' == m_info.Compression)
     {
         m_input.Read(m_output, 0, m_output.Length);
     }
     else
     {
         using (var bits = new MsbBitStream(m_input.AsStream, true))
         {
             if ('l' == m_info.Compression)
             {
                 UnpackL(bits);
             }
             else if ('p' == m_info.Compression)
             {
                 UnpackP(bits);
             }
             else
             {
                 throw new InvalidFormatException();
             }
         }
     }
     return(m_output);
 }
Example #23
0
        public override ImageData Read(IBinaryStream stream, ImageMetaData info)
        {
            PixelFormat format;

            if (24 == info.BPP)
            {
                format = PixelFormats.Bgr24;
            }
            else if (32 == info.BPP)
            {
                format = PixelFormats.Bgra32;
            }
            else
            {
                format = PixelFormats.Gray8;
            }
            int stride = (int)info.Width * ((info.BPP + 7) / 8);
            var pixels = new byte[stride * info.Height];

            stream.Position = 0x10;
            int read = stream.Read(pixels, 0, pixels.Length);

            if (read != pixels.Length)
            {
                throw new InvalidFormatException();
            }
            return(ImageData.Create(info, format, null, pixels, stride));
        }
Example #24
0
        byte[] UnpackStream24(IBinaryStream input, byte[] output, int total_length)
        {
            int dst = 0;

            while (dst < total_length)
            {
                int v = input.ReadUInt8();
                if (0 == v)
                {
                    int count = input.ReadUInt8();
                    if (0 == count)
                    {
                        continue;
                    }
                    dst += count;
                }
                else if (0xff == v)
                {
                    int count = input.ReadUInt8();
                    if (0 == count)
                    {
                        continue;
                    }
                    count = Math.Min(count, total_length - dst);
                    input.Read(output, dst, count);
                    dst += count;
                }
                else
                {
                    output[dst++] = input.ReadUInt8();
                }
            }
            return(output);
        }
Example #25
0
        public PcmDecoder(IBinaryStream input, int pcm_size, int extra, XpcmCompression mode)
        {
            if (extra < 0 || extra > 3)
            {
                throw new InvalidFormatException();
            }
            int packed_size = input.ReadInt32();

            m_extra    = extra;
            m_pcm_size = pcm_size;
            m_pcm_data = new byte[pcm_size + 8192];
            m_encoded  = new byte[(pcm_size / 0xFE0 << 12) + 16386];
            if (XpcmCompression.Lzss == mode)
            {
                if (packed_size != input.Read(m_pcm_data, 0, packed_size))
                {
                    throw new InvalidFormatException("Unexpected end of file");
                }
                UnpackV1(m_pcm_data, packed_size, m_encoded);
            }
            else if (XpcmCompression.Zlib == mode)
            {
                using (var z = new ZLibStream(input.AsStream, CompressionMode.Decompress, true))
                    z.Read(m_encoded, 0, m_encoded.Length);
            }
            else
            {
                throw new InvalidFormatException("Unknown PCM compression mode");
            }
        }
Example #26
0
        public override ImageMetaData ReadMetaData(IBinaryStream stream)
        {
            var key = new byte[0x10];

            stream.Position = 4;
            if (key.Length != stream.Read(key, 0, key.Length))
            {
                return(null);
            }
            using (var enc = new InputProxyStream(stream.AsStream, true))
                using (var crypto = new InputCryptoStream(enc, new GaxTransform(key)))
                    using (var input = new BinaryStream(crypto, stream.Name))
                    {
                        var info = Png.ReadMetaData(input);
                        if (null == info)
                        {
                            return(null);
                        }
                        return(new GaxMetaData
                        {
                            OffsetX = info.OffsetX,
                            OffsetY = info.OffsetY,
                            Width = info.Width,
                            Height = info.Height,
                            BPP = info.BPP,
                            Key = key,
                        });
                    }
        }
Example #27
0
        public override ImageData Read(IBinaryStream file, ImageMetaData info)
        {
            file.Position = 0xE;
            int total  = (int)info.Width * (int)info.Height;
            var pixels = new byte[total + 15];
            int dst    = 0;

            while (dst < total)
            {
                int count = file.ReadUInt16();
                if (count > 0x7FFF)
                {
                    count &= 0x7FFF;
                    file.Read(pixels, dst, count);
                    dst += count;
                }
                else
                {
                    byte c = file.ReadUInt8();
                    while (count-- > 0)
                    {
                        pixels[dst++] = c;
                    }
                }
            }
            return(ImageData.Create(info, PixelFormats.Gray8, null, pixels));
        }
Example #28
0
        public override ImageData Read(IBinaryStream file, ImageMetaData info)
        {
            var meta = (Kgd1MetaData)info;

            file.Position = 0x18;
            byte[] alpha = null;
            if (meta.AlphaLength != 0)
            {
                alpha = file.ReadBytes(meta.AlphaLength);
            }

            BitmapPalette palette = null;
            PixelFormat   format;

            if (8 == info.BPP)
            {
                palette = ReadPalette(file.AsStream);
                format  = PixelFormats.Indexed8;
            }
            else
            {
                format = PixelFormats.Bgr24;
            }
            var pixels = new byte[(int)info.Width * (int)info.Height * (info.BPP / 8)];

            file.Read(pixels, 0, pixels.Length);
            if (alpha != null)
            {
                pixels = ApplyAlphaChannel(meta, pixels, palette, alpha);
                format = PixelFormats.Bgra32;
            }
            return(ImageData.Create(info, format, palette, pixels));
        }
Example #29
0
        internal static byte[] LzDecompress(IBinaryStream input)
        {
            int unpacked_size = input.ReadInt32();
            var data          = new byte[unpacked_size];
            int dst           = 0;

            while (dst < unpacked_size)
            {
                int ctl = input.ReadByte();
                if (-1 == ctl)
                {
                    throw new EndOfStreamException();
                }
                if (0 != (ctl & 0x80))
                {
                    byte lo     = input.ReadUInt8();
                    int  offset = ((ctl << 3 | lo >> 5) & 0x3FF) + 1;
                    int  count  = (lo & 0x1F) + 1;
                    Binary.CopyOverlapped(data, dst - offset, dst, count);
                    dst += count;
                }
                else
                {
                    int count = ctl + 1;
                    if (input.Read(data, dst, count) != count)
                    {
                        throw new EndOfStreamException();
                    }
                    dst += count;
                }
            }
            return(data);
        }
Example #30
0
            private void ReadPalette(int colors)
            {
                int color_size = 0x102 == colors ? 4 : 3;

                if (colors > 0x100)
                {
                    colors = 0x100;
                }
                int palette_size = colors * color_size;
                var palette_data = new byte[palette_size];

                if (palette_size != m_input.Read(palette_data, 0, palette_size))
                {
                    throw new InvalidFormatException();
                }
                var palette   = new Color[colors];
                int color_pos = 0;

                for (int i = 0; i < palette.Length; ++i)
                {
                    byte r = palette_data[color_pos];
                    byte g = palette_data[color_pos + 1];
                    byte b = palette_data[color_pos + 2];
                    if (0xff == b && 0 == g && 0xff == r)
                    {
                        g = 0xff;
                    }
                    palette[i] = Color.FromRgb(r, g, b);
                    color_pos += color_size;
                }
                Palette = new BitmapPalette(palette);
            }
Example #31
0
        /// <summary>
        /// Tests the stream.
        /// </summary>
        private static unsafe void TestStream(IBinaryStream stream, bool sameArr, Action flush)
        {
            Action seek = () => Assert.AreEqual(0, stream.Seek(0, SeekOrigin.Begin));

            Action<Action, Func<object>, object> check = (write, read, expectedResult) =>
            {
                seek();
                write();
                flush();
                seek();
                Assert.AreEqual(expectedResult, read());
            };

            // Arrays.
            Assert.AreEqual(sameArr, stream.IsSameArray(stream.GetArray()));
            Assert.IsFalse(stream.IsSameArray(new byte[1]));
            Assert.IsFalse(stream.IsSameArray(stream.GetArrayCopy()));

            // byte*
            byte* bytes = stackalloc byte[10];
            *bytes = 1;
            *(bytes + 1) = 2;

            stream.Write(bytes, 2);
            Assert.AreEqual(2, stream.Position);
            flush();

            seek();
            Assert.AreEqual(sameArr ? 256 : 2, stream.Remaining);
            byte* bytes2 = stackalloc byte[2];
            stream.Read(bytes2, 2);
            Assert.AreEqual(1, *bytes2);
            Assert.AreEqual(2, *(bytes2 + 1));

            // char*
            seek();
            char* chars = stackalloc char[10];
            *chars = 'a';
            *(chars + 1) = 'b';

            Assert.AreEqual(2, stream.WriteString(chars, 2, 2, Encoding.ASCII));
            flush();

            seek();
            stream.Read(bytes2, 2);
            Assert.AreEqual('a', *bytes2);
            Assert.AreEqual('b', *(bytes2 + 1));

            // Others.
            check(() => stream.Write(new byte[] {3, 4, 5}, 1, 2), () => stream.ReadByteArray(2), new byte[] {4, 5});

            check(() => stream.WriteBool(true), () => stream.ReadBool(), true);
            check(() => stream.WriteBoolArray(new[] {true, false}), () => stream.ReadBoolArray(2), 
                new[] {true, false});

            check(() => stream.WriteByte(4), () => stream.ReadByte(), 4);
            check(() => stream.WriteByteArray(new byte[] {4, 5, 6}), () => stream.ReadByteArray(3), 
                new byte[] {4, 5, 6});

            check(() => stream.WriteChar('x'), () => stream.ReadChar(), 'x');
            check(() => stream.WriteCharArray(new[] {'a', 'b'}), () => stream.ReadCharArray(2), new[] {'a', 'b'});

            check(() => stream.WriteDouble(4), () => stream.ReadDouble(), 4d);
            check(() => stream.WriteDoubleArray(new[] {4d}), () => stream.ReadDoubleArray(1), new[] {4d});

            check(() => stream.WriteFloat(4), () => stream.ReadFloat(), 4f);
            check(() => stream.WriteFloatArray(new[] {4f}), () => stream.ReadFloatArray(1), new[] {4f});

            check(() => stream.WriteInt(4), () => stream.ReadInt(), 4);
            check(() => stream.WriteInt(0, 4), () => stream.ReadInt(), 4);
            check(() => stream.WriteIntArray(new[] {4}), () => stream.ReadIntArray(1), new[] {4});

            check(() => stream.WriteLong(4), () => stream.ReadLong(), 4L);
            check(() => stream.WriteLongArray(new[] {4L}), () => stream.ReadLongArray(1), new[] {4L});

            check(() => stream.WriteShort(4), () => stream.ReadShort(), (short)4);
            check(() => stream.WriteShortArray(new short[] {4}), () => stream.ReadShortArray(1), new short[] {4});
        }