public static void CompressRomOptimized(ORom uncompressedRom, ORom refRom, Stream sw)
{
int filesProcessed = 0;
int filesTotal;
List <FileRecord> newDmaTable = new List <FileRecord>();
filesTotal = uncompressedRom.Files.Count();
foreach (FileRecord record in uncompressedRom.Files)
{
Stream outstream = GetFile_CompressedOptimized(uncompressedRom, refRom, record, out bool IsCompressed);
AppendFile(sw, newDmaTable, outstream, record, IsCompressed);
//writes progress to console window
filesProcessed++;
Console.Write(processedFiles, filesProcessed, filesTotal);
}
sw.PadToLength(0x2000000);
WriteFileTable(sw, uncompressedRom.Files.GetDmaDataStart(), newDmaTable);
CRC.Write(sw);
}
public static void DecompressRom(Rom compressedRom, Stream sw)
{
List <FileRecord> newDmaTable = new List <FileRecord>();
FileAddress addr; //current address
int filesProcessed = 0;
int filesTotal;
filesTotal = compressedRom.Files.Count();
foreach (FileRecord record in compressedRom.Files.OrderBy(x => x.VirtualAddress.Start))
{
addr = record.VirtualAddress;
sw.PadToLength(addr.Start);
//MM Check
if (record.PhysicalAddress.Start == -1)
{
newDmaTable.Add(new FileRecord(addr, new FileAddress(record.PhysicalAddress.Start, 0), record.Index));
}
else
{
var file = compressedRom.Files.GetFile(addr);
((Stream)file).CopyTo(sw);
newDmaTable.Add(new FileRecord(addr, new FileAddress(addr.Start, 0), record.Index));
}
//writes progress to console window
filesProcessed++;
Console.Write(processedFiles, filesProcessed, filesTotal);
}
sw.PadToLength(0x4000000);
WriteFileTable(sw, compressedRom.Files.GetDmaDataStart(), newDmaTable.OrderBy(x => x.Index).ToList());
CRC.Write(sw);
}
/// <summary>
/// Patches files into a rom, where file VROM mappings are identical
/// </summary>
/// <param name="OutputFilename"></param>
/// <param name="hostRom"></param>
/// <param name="UpdateFiles"></param>
/// <param name="GetFile"></param>
private static void PatchFiles_SameVrom_Compressed(Stream output, ORom hostRom,
Dictionary <long, string> UpdateFiles, GetFileDelegate GetFile)
{
List <FileRecord> newDmaTable = new List <FileRecord>();
foreach (FileRecord record in hostRom.Files)
{
long physicalStart = output.Position;
long vromFilesize;
long romFilesize;
Stream file;
//if the file is being replaced with a custom file
if (UpdateFiles.ContainsKey(record.VRom.Start))
{
//get source file
file = GetFile(UpdateFiles[record.VRom.Start]);
//Get virtual file size
if (record.IsCompressed)
{
Yaz.DecodeSize(file, out vromFilesize);
}
else
{
vromFilesize = Align.To16(file.Length);
}
//get the physical file size with padding
romFilesize = Align.To16(file.Length);
}
else //copy a source rom file.
{
vromFilesize = record.VRom.Size;
romFilesize = record.Data.Size;
if (romFilesize > 0x800000)
{
throw new Exception("Internal file too large");
}
file = hostRom.Files.GetPhysicalFile(record.VRom.Start);
}
//copy file
file.CopyTo(output);
file.Close();
//pad out
output.PadToLength(physicalStart + romFilesize);
//generate a new file table record
newDmaTable.Add(new FileRecord(
new FileAddress(record.VRom.Start, record.VRom.Start + vromFilesize),
new FileAddress(physicalStart, (record.IsCompressed) ? physicalStart + romFilesize : 0)));
}
output.PadToLength(0x2000000);
WriteFileTable(output, hostRom.Files.GetDmaDataStart(), newDmaTable);
//write crc
CRC.Write(output);
}