public void Save(string filename)
{
if (File.Exists(filename))
{
File.Delete(filename);
}
uint fileSize = 8; // 'icns' + fileSize
uint tocSize = 8; // TOC header
foreach (var icon in Icons)
{
if (icon.Type == IcnsType.unsupported)
{
continue;
}
var saveBuffer = icon.GetSaveBuffer();
fileSize += (uint)saveBuffer.Length + 8; // OSType + data size + savebuffer
tocSize += 8; // TOC entry
}
fileSize += tocSize;
using (var fs = File.Create(filename)) {
using (var writer = new BinaryWriterBigEndian(fs)) {
writer.Write(Encoding.ASCII.GetBytes("icns"));
writer.WriteBigEndian(fileSize);
writer.Write(Encoding.ASCII.GetBytes("TOC "));
writer.WriteBigEndian(tocSize);
foreach (var icon in Icons)
{
if (icon.Type == IcnsType.unsupported)
{
continue;
}
var saveBuffer = icon.GetSaveBuffer();
writer.Write(Encoding.ASCII.GetBytes(GetIdentForType(icon.Type)));
writer.WriteBigEndian((uint)saveBuffer.Length);
}
foreach (var icon in Icons)
{
if (icon.Type == IcnsType.unsupported)
{
continue;
}
var saveBuffer = icon.GetSaveBuffer();
writer.Write(Encoding.ASCII.GetBytes(GetIdentForType(icon.Type)));
writer.WriteBigEndian((uint)saveBuffer.Length + 8);
writer.Write(saveBuffer.ToArray());
}
}
}
}
public void Write()
{
var align = 14;
var offset = Align(4 + FatEntries.Count * 5 * 4, align);
// Determine offsets
foreach (var entry in FatEntries)
{
entry.offset = (uint)offset;
entry.align = (uint)align;
offset = Align(offset + (int)entry.size, align);
}
if (FatEntries.Count == 0)
{
}
else if (FatEntries.Count == 1)
{
Console.WriteLine($"Writing {_path} {FatEntries[0].cputype} from {FatEntries[0].srcentry.path}");
File.Copy(FatEntries[0].srcentry.path, _path);
}
else
{
Console.WriteLine($"Writing {_path}:");
using (var dst = new FileStream(_path, FileMode.Create, FileAccess.Write))
{
// Write Header
using (var writer = new BinaryWriterBigEndian(dst))
{
writer.Write(0xCAFEBABE);
writer.Write(FatEntries.Count);
foreach (var entry in FatEntries)
{
writer.Write((uint)entry.cputype);
writer.Write((uint)entry.cpusubtype);
writer.Write(entry.offset);
writer.Write(entry.size);
writer.Write(entry.align);
}
}
foreach (var entry in FatEntries)
{
Console.WriteLine($" - {entry.cputype} from {entry.srcentry.path}");
using (var src = new FileStream(entry.srcentry.path, FileMode.Open, FileAccess.Read))
{
dst.Seek(entry.offset, SeekOrigin.Begin);
src.Seek(entry.srcentry.offset, SeekOrigin.Begin);
var remaining = (int)entry.size;
var buf = new byte[64 * 1024];
while (remaining != 0)
{
var size = Math.Min(remaining, buf.Length);
src.Read(buf, 0, size);
dst.Write(buf, 0, size);
remaining -= size;
}
}
}
}
}
}
private Packer PackTrue()
{
writer.Write(MsgPack.BoolTrueType);
return(this);
}