Ejemplo n.º 1
0
 internal void Add(MacResource res)
 {
     resources.Add(res.id, res);
 }
Ejemplo n.º 2
0
        public MacResourceFork(Stream input)
        {
            long start = input.Position;

            byte[] buf;

            // Read the resource fork header
            buf = new byte[16];
            if (input.Read(buf, 0, 16) != 16)
            {
                throw new MacResourceForkException("Could not read header.");
            }
            long dataoffset = start + MacUtil.read32(buf, 0);
            long mapoffset  = start + MacUtil.read32(buf, 4);

            long typelistoffset, namelistoffset;

            byte[] typelist;
            {
                // Seek to the resource map
                input.Seek(mapoffset, SeekOrigin.Begin);

                // Read the resource map header
                buf = new byte[30];
                if (input.Read(buf, 0, 30) != 30)
                {
                    throw new MacResourceForkException("Could not read resource map header.");
                }
                typelistoffset = mapoffset + MacUtil.read16(buf, 24);
                namelistoffset = mapoffset + MacUtil.read16(buf, 26);
                int numtypes = MacUtil.read16(buf, 28) + 1;

                // Create the types dictionary
                types = new Dictionary <string, MacResourceType>(numtypes);

                // Read the resource type list
                int listlen = numtypes * 8;
                typelist = new byte[listlen];
                if (input.Read(typelist, 0, listlen) != listlen)
                {
                    throw new MacResourceForkException("Could not read resource type list header.");
                }
            }

            // Walk the resource type list
            for (int i = 0; i < typelist.Length; i += 8)
            {
                MacResourceType type;
                long            reflistoffset;
                byte[]          reflist;
                {
                    // Read the resource type list entry
                    String typename     = MacUtil.readString(typelist, i, 4);
                    int    numresources = MacUtil.read16(typelist, i + 4);
                    reflistoffset = typelistoffset + MacUtil.read16(typelist, i + 6);

                    // Create the resource type
                    type = new MacResourceType(typename, numresources);
                    types.Add(typename, type);

                    // Seek to the reference list for this type
                    input.Seek(reflistoffset, SeekOrigin.Begin);

                    // Read the reference list
                    int listlen = numresources * 12;
                    reflist = new byte[listlen];
                    if (input.Read(reflist, 0, listlen) != listlen)
                    {
                        throw new MacResourceForkException("Could not read the reference list.");
                    }
                }

                for (int j = 0; j < reflist.Length; j += 12)
                {
                    // Read the reference list entry
                    int  id            = MacUtil.read16(reflist, j);
                    long resnameoffset = MacUtil.read16(reflist, j + 2);
                    long resdataoffset = dataoffset + MacUtil.read24(reflist, j + 5);

                    String name = null;
                    if (resnameoffset != -1)
                    {
                        // Seek to the name list entry
                        resnameoffset += namelistoffset;
                        input.Seek(resnameoffset, SeekOrigin.Begin);

                        // Read the resource name
                        int resnamelen = input.ReadByte();
                        buf = new byte[resnamelen];
                        if (input.Read(buf, 0, resnamelen) != resnamelen)
                        {
                            throw new MacResourceForkException("Could not read resource name.");
                        }
                        name = MacUtil.readString(buf, 0, resnamelen);
                    }

                    // Seek to the resource data
                    input.Seek(resdataoffset, SeekOrigin.Begin);

                    // Create the resource
                    MacResource res = new MacResource(input, type.type, name, id);
                    type.Add(res);
                }
            }
        }
Ejemplo n.º 3
0
        public MacResourceFork(Stream input)
        {
            long start = input.Position;
            byte[] buf;

            // Read the resource fork header
            buf = new byte[16];
            if (input.Read(buf, 0, 16) != 16)
                throw new MacResourceForkException("Could not read header.");
            long dataoffset = start + MacUtil.read32(buf, 0);
            long mapoffset = start + MacUtil.read32(buf, 4);

            long typelistoffset, namelistoffset;
            byte[] typelist;
            {
                // Seek to the resource map
                input.Seek(mapoffset, SeekOrigin.Begin);

                // Read the resource map header
                buf = new byte[30];
                if (input.Read(buf, 0, 30) != 30)
                    throw new MacResourceForkException("Could not read resource map header.");
                typelistoffset = mapoffset + MacUtil.read16(buf, 24);
                namelistoffset = mapoffset + MacUtil.read16(buf, 26);
                int numtypes = MacUtil.read16(buf, 28) + 1;

                // Create the types dictionary
                types = new Dictionary<string,MacResourceType>(numtypes);

                // Read the resource type list
                int listlen = numtypes * 8;
                typelist = new byte[listlen];
                if (input.Read(typelist, 0, listlen) != listlen)
                    throw new MacResourceForkException("Could not read resource type list header.");
            }

            // Walk the resource type list
            for (int i = 0; i < typelist.Length; i += 8)
            {
                MacResourceType type;
                long reflistoffset;
                byte[] reflist;
                {
                    // Read the resource type list entry
                    String typename = MacUtil.readString(typelist, i, 4);
                    int numresources = MacUtil.read16(typelist, i + 4);
                    reflistoffset = typelistoffset + MacUtil.read16(typelist, i + 6);

                    // Create the resource type
                    type = new MacResourceType(typename, numresources);
                    types.Add(typename, type);

                    // Seek to the reference list for this type
                    input.Seek(reflistoffset, SeekOrigin.Begin);

                    // Read the reference list
                    int listlen = numresources * 12;
                    reflist = new byte[listlen];
                    if (input.Read(reflist, 0, listlen) != listlen)
                        throw new MacResourceForkException("Could not read the reference list.");
                }

                for (int j = 0; j < reflist.Length; j += 12)
                {
                    // Read the reference list entry
                    int id = MacUtil.read16(reflist, j);
                    long resnameoffset = MacUtil.read16(reflist, j + 2);
                    long resdataoffset = dataoffset + MacUtil.read24(reflist, j + 5);

                    String name = null;
                    if (resnameoffset != -1)
                    {
                        // Seek to the name list entry
                        resnameoffset += namelistoffset;
                        input.Seek(resnameoffset, SeekOrigin.Begin);

                        // Read the resource name
                        int resnamelen = input.ReadByte();
                        buf = new byte[resnamelen];
                        if (input.Read(buf, 0, resnamelen) != resnamelen)
                            throw new MacResourceForkException("Could not read resource name.");
                        name = MacUtil.readString(buf, 0, resnamelen);
                    }

                    // Seek to the resource data
                    input.Seek(resdataoffset, SeekOrigin.Begin);

                    // Create the resource
                    MacResource res = new MacResource(input, type.type, name, id);
                    type.Add(res);
                }
            }
        }
Ejemplo n.º 4
0
 internal void Add(MacResource res)
 {
     resources.Add(res.id, res);
 }