LSLib.Granny.GR2.GR2Reader.UncompressStream C# (CSharp) Method

        private void UncompressStream()
        {
#if DEBUG_GR2_SERIALIZATION
            System.Console.WriteLine(String.Format(" ===== Repacking sections ===== "));
#endif

            uint totalSize = 0;
            foreach (var section in Sections)
            {
                totalSize += section.Header.uncompressedSize;
            }

            // Copy the whole file, as we'll update its contents because of relocations and marshalling fixups
            byte[] uncompressedStream = new byte[totalSize];
            this.Stream = new MemoryStream(uncompressedStream);
            this.Reader = new BinaryReader(this.Stream);

            for (int i = 0; i < Sections.Count; i++)
            {
                var section = Sections[i];
                var hdr = section.Header;
                byte[] sectionContents = new byte[hdr.compressedSize];
                InputStream.Position = hdr.offsetInFile;
                InputStream.Read(sectionContents, 0, (int)hdr.compressedSize);

                var originalOffset = hdr.offsetInFile;
                hdr.offsetInFile = (uint)Stream.Position;
                if (section.Header.compression == 0)
                {
                    Stream.Write(sectionContents, 0, sectionContents.Length);
                }
                else if (section.Header.uncompressedSize > 0)
                {
                    var uncompressed = Granny2Compressor.Decompress(
                        (int)hdr.compression,
                        sectionContents, (int)hdr.uncompressedSize,
                        (int)hdr.first16bit, (int)hdr.first8bit, (int)hdr.uncompressedSize);
                    Stream.Write(uncompressed, 0, uncompressed.Length);
                }

#if DEBUG_GR2_SERIALIZATION
                System.Console.WriteLine(String.Format("    {0}: {1:X8} ({2}) --> {3:X8} ({4})", i, originalOffset, hdr.compressedSize, hdr.offsetInFile, hdr.uncompressedSize));
#endif
            }
        }