What am i doing wrong?
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Thread: What am i doing wrong?

  1. #1
    Join Date
    Jul 2013
    Posts
    2

    What am i doing wrong?

    Hey i cant figure out what i am doing wrong, Its to extract some images from .adf files, I have had it working about 2 years ago but now i cant figure out the right directory. I can post the files i need to extract and the project if it helps.

    Thanks



    Code:
    using System;
    using System.Collections.Generic;
    using System.Drawing;
    using System.IO;
    using System.Linq;
    using System.Text;
    
    namespace ADFReader
    {
        class Program
        {
            public static int ApplyOffset(int data, int offset)
            {
                return (data - offset);
            }
    
            public static byte ApplyOffsetByte(byte data, int offset)
            {
                if (offset > data)
                {
                    data = (byte)(data + (0x100 - offset));
                    return data;
                }
                data = (byte)(data - offset);
                return data;
            }
    
            public static int RealSize(int datasize, int chunksize)
            {
                return (datasize - (datasize / (chunksize + 1)));
            }
    
            static void Main(string[] args)
            {
                foreach (string file in Directory.GetFiles(@"data\", "*.adf")) ;
                {
                    byte[] bytes = File.ReadAllBytes(file);
    
                    // so the last byte happens to be twice the "offset" number.
                    // but that doesn't matter because the second to last byte is *always?* the offset number anyways!
                    byte offset = bytes[bytes.Length - 2];
    
                    BinaryReader reader = new BinaryReader(new MemoryStream(bytes));
                    StreamWriter writer = new StreamWriter(@"asppp\" + Path.GetFileName(file) + "-header.txt");
    
                    byte fileType = reader.ReadByte();
                    int extraLength = reader.ReadInt32() + 1;
                    writer.WriteLine("Type: {0}, Extra Length: {1}", fileType, extraLength);
                    // not sure what these extra bytes are
                    writer.Write("Extra Bytes: ");
                    for (int i = 0; i < extraLength; i++) writer.Write("{0,4}", ApplyOffsetByte(reader.ReadByte(), offset));
                    writer.WriteLine();
                    int numberOfFrames = ApplyOffset(reader.ReadInt32(), offset);
                    writer.WriteLine("NumberOfFrames: {0}", numberOfFrames);
    
                    for (int i = 0; i < numberOfFrames; i++)
                    {
                        int frameId = ApplyOffset(reader.ReadInt32(), offset);
                        // always 1 as far as i have seen
                        byte unknownByte = ApplyOffsetByte(reader.ReadByte(), offset);
                        int x = ApplyOffset(reader.ReadInt32(), offset);
                        int y = ApplyOffset(reader.ReadInt32(), offset);
                        int width = ApplyOffset(reader.ReadInt32(), offset);
                        int height = ApplyOffset(reader.ReadInt32(), offset);
    
                        writer.WriteLine("Id: {0,4} U: {1,4} X: {2,4} Y: {3,4} W: {4,4} H: {5,4}", frameId, unknownByte, x, y, width, height);
                    }
    
                    // not sure what this is, 36 = wav though i think
                    int unknown = ApplyOffset(reader.ReadInt32(), offset);
                    writer.WriteLine("U: {0}", unknown);
    
                    writer.Close();
    
                    int length = (int)(reader.BaseStream.Length - reader.BaseStream.Position);
                    byte[] buffer = reader.ReadBytes(length);
                    byte[] data = new byte[RealSize(buffer.Length, 0x315)];
                    for (int k = 0; k < buffer.Length; k++)
                    {
                        data[k - (k / 790)] = ApplyOffsetByte(buffer[k], offset);
                    }
    
                    string ext = ".bmp";
                    if (unknown == 36) ext = ".wav";
    
                    File.WriteAllBytes(@"asppp\" + Path.GetFileName(file) + ext, data);
                }
            }
        }
    }
    Sorry for the double post, The main problem is

    Code:
    static void Main(string[] args)
            {
                foreach (string file in Directory.GetFiles(@"data\", "*.adf")) ;
                {
                    byte[] bytes = File.ReadAllBytes(file);
    
                    // so the last byte happens to be twice the "offset" number.
                    // but that doesn't matter because the second to last byte is *always?* the offset number anyways!
                    byte offset = bytes[bytes.Length - 2];
    
                    BinaryReader reader = new BinaryReader(new MemoryStream(bytes));
                    StreamWriter writer = new StreamWriter(@"asppp\" + Path.GetFileName(file) + "-header.txt");

  2. #2
    2kaud's Avatar
    2kaud is offline Super Moderator Power Poster
    Join Date
    Dec 2012
    Location
    England
    Posts
    5,872

    Re: What am i doing wrong?

    Is this c# code? This forum is for c++ issues. I suggest you repost to the c-sharp programming forum.

    [moderator could you move please]
    All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!

    C++17 Compiler: Microsoft VS2017 (15.5.0)

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