public override void Flush()
{
const int blockSize = 64;
var offsetList = new int[entries.Count];
destination.WriteByte((byte)'T');
destination.WriteByte((byte)'X');
destination.WriteByte((byte)'A');
destination.WriteByte((byte)'G');
PTStream.WriteInt32BE(destination, entries.Count);
var offset = PTMethods.RoundUp(0x8 + (entries.Count * 0x28), blockSize);
for (int i = 0; i < entries.Count; i++)
{
var length = entries[i].Length;
offsetList[i] = offset;
PTStream.WriteInt32BE(destination, offset);
PTStream.WriteInt32BE(destination, length);
PTStream.WriteCString(destination, Path.GetFileNameWithoutExtension(entries[i].Name), 32);
offset += PTMethods.RoundUp(length, blockSize);
}
for (int i = 0; i < entries.Count; i++)
{
destination.Position = offsetList[i];
PTStream.CopyToPadded(entries[i].Open(), destination, blockSize, 0);
OnFileAdded(EventArgs.Empty);
}
}
public override Stream OpenEntry(ArchiveEntry entry)
{
// If this archive does not contain any global indexes, then just return the data as is.
if (!hasGlobalIndexes)
{
return(base.OpenEntry(entry));
}
long oldPosition = archiveData.Position;
MemoryStream data = new MemoryStream();
// Write out the GBIX header
data.WriteByte((byte)'G');
data.WriteByte((byte)'B');
data.WriteByte((byte)'I');
data.WriteByte((byte)'X');
PTStream.WriteInt32(data, 8);
archiveData.Position = 0xC + (entry.Index * tableEntryLength) + globalIndexOffset;
PTStream.WriteUInt32(data, PTStream.ReadUInt32(archiveData));
data.Position += 4;
// Now copy over the file data
archiveData.Position = entry.Offset;
PTStream.CopyPartTo(archiveData, data, entry.Length);
archiveData.Position = oldPosition;
data.Position = 0;
return(data);
}
public OneStorybookArchiveReader(Stream source) : base(source)
{
_prsCompression = new PrsCompression();
// Get the number of entries in the archive
int numEntries = PTStream.ReadInt32BE(source);
entries = new ArchiveEntryCollection(this, numEntries);
// Read in all the entries
for (int i = 0; i < numEntries; i++)
{
string entryFilename = PTStream.ReadCStringAt(source, 0x10 + (i * 0x30), 0x20);
source.Position = 0x34 + (i * 0x30);
int entryOffset = PTStream.ReadInt32BE(source);
int entryLength = PTStream.ReadInt32BE(source);
// Add this entry to the collection
entries.Add(startOffset + entryOffset, entryLength, entryFilename);
}
// Set the position of the stream to the end of the file
source.Seek(0, SeekOrigin.End);
}
public TexArchiveReader(Stream source) : base(source)
{
// Get the number of entries in the archive
source.Position += 4;
int numEntries = PTStream.ReadInt32(source);
entries = new ArchiveEntryCollection(this, numEntries);
source.Position += 8;
// Read in all the entries
for (int i = 0; i < numEntries; i++)
{
// Read in the entry filename extension, offset, length, and filename without the extension
string entryFileExtension = PTStream.ReadCString(source, 4, Encoding.GetEncoding("Shift_JIS"));
int entryOffset = PTStream.ReadInt32(source);
int entryLength = PTStream.ReadInt32(source);
string entryFilename = PTStream.ReadCString(source, 20, Encoding.GetEncoding("Shift_JIS"));
if (entryFileExtension != String.Empty)
{
entryFileExtension = "." + entryFileExtension;
}
// Add this entry to the collection
entries.Add(startOffset + entryOffset, entryLength, entryFilename + entryFileExtension);
}
// Set the position of the stream to the end of the file
source.Seek(0, SeekOrigin.End);
}
/// <summary>
/// Extracts the specified entry to a file.
/// </summary>
/// <param name="entry">An archive entry.</param>
/// <param name="path">The path to extract the file to.</param>
public void ExtractToFile(ArchiveEntry entry, string path)
{
using (Stream source = OpenEntry(entry), destination = File.Create(path))
{
PTStream.CopyTo(source, destination);
}
}
protected override MemoryStream EncodePalette()
{
// Calculate what the length of the palette will be
int paletteLength = 16 + (paletteEntries * pixelCodec.Bpp / 8);
MemoryStream destination = new MemoryStream(paletteLength);
// Write out the PVPL header
destination.WriteByte((byte)'P');
destination.WriteByte((byte)'V');
destination.WriteByte((byte)'P');
destination.WriteByte((byte)'L');
PTStream.WriteInt32(destination, paletteLength - 8);
destination.WriteByte((byte)pixelFormat);
destination.WriteByte(0);
PTStream.WriteUInt32(destination, 0);
PTStream.WriteUInt16(destination, paletteEntries);
// Write the palette data
byte[] palette = pixelCodec.EncodePalette(decodedPalette, paletteEntries);
destination.Write(palette, 0, palette.Length);
return(destination);
}
public override Stream OpenEntry(ArchiveEntry entry)
{
// Some Billy Hatcher textures have an oddity where the texture length is 16 more than what it
// actually should be. This seems to only effect the last texture of a GVM, and only some of them
// are affected. In that case, we will "fix" the GVRs in question.
bool needToFix = (entry.Index == entries.Count - 1 && this.needToFix);
// If this archive does not contain any global indicies, then just return the data as is.
if (!hasGlobalIndexes && !needToFix)
{
return(base.OpenEntry(entry));
}
long oldPosition = archiveData.Position;
MemoryStream data = new MemoryStream();
// Write out the GBIX header, if this archive contains global indexes
if (hasGlobalIndexes)
{
data.WriteByte((byte)'G');
data.WriteByte((byte)'B');
data.WriteByte((byte)'I');
data.WriteByte((byte)'X');
PTStream.WriteInt32(data, 8);
archiveData.Position = 0xC + (entry.Index * tableEntryLength) + globalIndexOffset;
PTStream.WriteInt32BE(data, PTStream.ReadInt32BE(archiveData));
data.Position += 4;
}
// Now copy over the file data
archiveData.Position = entry.Offset;
PTStream.CopyPartTo(archiveData, data, entry.Length);
// Fix the texture lengths for the textures that need to be "fixed"
if (needToFix)
{
if (hasGlobalIndexes)
{
data.Position = 0x14;
}
else
{
data.Position = 0x4;
}
uint actualLength = PTStream.ReadUInt32(data);
data.Position -= 4;
PTStream.WriteUInt32(data, actualLength - 16);
}
archiveData.Position = oldPosition;
data.Position = 0;
return(data);
}
public override bool Is(Stream source, int length, string fname)
{
return(length > 36 &&
(PTStream.Contains(source, 0, new byte[] { (byte)'N', (byte)'U', (byte)'I', (byte)'F' }) &&
PTStream.Contains(source, 32, new byte[] { (byte)'N', (byte)'U', (byte)'T', (byte)'L' })) ||
(PTStream.Contains(source, 0, new byte[] { (byte)'N', (byte)'S', (byte)'I', (byte)'F' }) &&
PTStream.Contains(source, 32, new byte[] { (byte)'N', (byte)'S', (byte)'T', (byte)'L' })) &&
PTStream.ReadInt32At(source, source.Position + 8) == 1);
}
public SntArchiveReader(Stream source) : base(source)
{
// Get the number of entries in the archive
source.Position += 48;
int numEntries = PTStream.ReadInt32(source);
entries = new ArchiveEntryCollection(this, numEntries);
source.Position += 8 + (numEntries * 20);
// Read in all the entries
for (int i = 0; i < numEntries; i++)
{
// Readin the entry offset and length
int entryLength = PTStream.ReadInt32(source);
int entryOffset = PTStream.ReadInt32(source) + 32;
// If this archive contains GIM textures, then it's possible that they may contain filenames.
// Let's check and see
string entryFname = String.Empty;
if (entryLength > 40)
{
long oldPosition = source.Position;
source.Position = startOffset + entryOffset;
if ((new GimTexture()).Is(source, entryLength, String.Empty))
{
// It's a GIM texture. Let's try to find a filename
source.Position += 36;
long fnameOffset = PTStream.ReadInt32(source) + 48;
if (fnameOffset < source.Length)
{
source.Position = startOffset + entryOffset + fnameOffset;
entryFname = Path.GetFileNameWithoutExtension(PTStream.ReadCString(source, (int)(source.Length - fnameOffset)));
if (entryFname != String.Empty)
{
entryFname += ".gim";
}
}
}
source.Position = oldPosition;
}
// Add this entry to the collection
entries.Add(startOffset + entryOffset, entryLength, entryFname);
}
// Set the position of the stream to the end of the file
source.Seek(0, SeekOrigin.End);
}
public override void Flush()
{
// The start of the archive
long offset = destination.Position;
// Magic code "MRG0"
destination.WriteByte((byte)'M');
destination.WriteByte((byte)'R');
destination.WriteByte((byte)'G');
destination.WriteByte((byte)'0');
// Number of entries in the archive
PTStream.WriteInt32(destination, entries.Count);
destination.Position += 8;
// Write out the header for the archive
int entryOffset = 16 + (entries.Count * 48);
for (int i = 0; i < entries.Count; i++)
{
// Write out the file extension
string fileExtension = Path.GetExtension(entries[i].Name);
if (fileExtension != String.Empty)
{
fileExtension = fileExtension.Substring(1);
}
PTStream.WriteCString(destination, fileExtension, 4, Encoding.GetEncoding("Shift_JIS"));
// Write out the offset, length, and filename (without the extension)
PTStream.WriteInt32(destination, entryOffset);
PTStream.WriteInt32(destination, entries[i].Length);
destination.Position += 4;
PTStream.WriteCString(destination, Path.GetFileNameWithoutExtension(entries[i].Name), 32, Encoding.GetEncoding("Shift_JIS"));
entryOffset += PTMethods.RoundUp(entries[i].Length, 16);
}
// Write out the file data for each entry
for (int i = 0; i < entries.Count; i++)
{
PTStream.CopyToPadded(entries[i].Open(), destination, 16, 0);
// Call the file added event
OnFileAdded(EventArgs.Empty);
}
}
private static void NextFileEntry(Stream input)
{
input.Position += 16;
while (input.Position < input.Length)
{
if (PTStream.ReadUInt32(input) == 0xFFFFFFFF)
{
break;
}
input.Position -= 3;
}
input.Position -= 20;
}
private void OpenTexture(Stream data, string fname, TextureFormat format)
{
TextureViewer viewer = new TextureViewer();
long oldPosition = data.Position;
try
{
viewer.OpenTexture(data, fname, format);
viewer.Show();
}
catch (TextureNeedsPaletteException)
{
ArchiveInfo info = openedArchives.Peek();
// Seems like we need a palette for this texture. Let's try to find one.
string textureName = Path.GetFileNameWithoutExtension(fname) + Texture.GetModule(format).PaletteFileExtension;
int paletteFileIndex = -1;
for (int i = 0; i < info.Archive.Entries.Count; i++)
{
if (info.Archive.Entries[i].Name.ToLower() == textureName.ToLower())
{
paletteFileIndex = i;
break;
}
}
// Let's see if we found the palette file. And if so, open it up.
// Due to the nature of how this works, we need to copy the palette data to another stream first
if (paletteFileIndex != -1)
{
Stream entryData = info.Archive.OpenEntry(paletteFileIndex);
int paletteLength = (int)entryData.Length;
// Get the palette data (we may need to copy over the data to another stream)
Stream paletteData = new MemoryStream();
PTStream.CopyTo(entryData, paletteData);
paletteData.Position = 0;
// Now open the texture
data.Position = oldPosition;
viewer.OpenTexture(data, fname, paletteData, format);
viewer.Show();
}
}
}
public TxdStorybookArchiveReader(Stream source) : base(source)
{
var fileCount = PTStream.ReadInt32BEAt(source, 0x4);
entries = new ArchiveEntryCollection(this, fileCount);
for (int i = 0; i < fileCount; i++)
{
var fileName = PTStream.ReadCStringAt(source, 0x10 + (i * 0x28), 32);
var offset = PTStream.ReadUInt32BEAt(source, 0x08 + (i * 0x28));
var length = PTStream.ReadInt32BEAt(source, 0x0C + (i * 0x28));
fileName = string.IsNullOrWhiteSpace(fileName) ? fileName : Path.ChangeExtension(fileName, "GVR");
entries.Add(startOffset + offset, length, fileName);
}
}
public override bool Is(Stream source, int length, string fname)
{
if (PTStream.ReadUInt32BEAt(source, 0x4) != 0x10)
{
return(false);
}
var i = PTStream.ReadUInt32BEAt(source, 0xC);
if (i != 0xFFFFFFFF && i != 0x00000000)
{
return(false);
}
source.Seek(0, SeekOrigin.Begin);
return(true);
}
public override void Flush()
{
const int tableStartPtr = 0x10;
int dataStartPtr = PTMethods.RoundUp(tableStartPtr + (entries.Count * 0x30), 0x10); // just to be safe
PTStream.WriteInt32BE(destination, entries.Count);
PTStream.WriteInt32BE(destination, tableStartPtr); // pointer to table start
PTStream.WriteInt32BE(destination, dataStartPtr); // pointer to data start
PTStream.WriteInt32BE(destination, 0); // not 100% sure on this one
int offset = dataStartPtr;
using (var compressedStream = new MemoryStream())
{
for (int i = 0; i < entries.Count; i++)
{
var entry = entries[i];
var entryStream = entry.Open();
_prsCompression.Compress(entryStream, compressedStream);
compressedStream.Position = 0;
PTStream.WriteCString(destination, entry.Name, 0x20); // name
PTStream.WriteInt32BE(destination, i); // index
PTStream.WriteInt32BE(destination, offset); // offset
PTStream.WriteInt32BE(destination, (int)compressedStream.Length); // compressed length
PTStream.WriteInt32BE(destination, (int)entryStream.Length); // uncompressed length
Debug.Assert(destination.Position <= dataStartPtr, "Table overrun!");
var currentPos = destination.Position;
destination.Position = offset;
PTStream.CopyTo(compressedStream, destination);
destination.Position = currentPos;
offset += (int)compressedStream.Length;
compressedStream.Position = 0;
compressedStream.SetLength(0);
OnFileAdded(EventArgs.Empty);
}
}
}
public override void Flush()
{
// The start of the archive
long offset = destination.Position;
// Magic code "\0\0\0\0"
destination.WriteByte(0);
destination.WriteByte(0);
destination.WriteByte(0);
destination.WriteByte(0);
// Number of entries in the archive
PTStream.WriteInt32BE(destination, entries.Count);
// Write out the header for the archive
int entryOffset = PTMethods.RoundUp(8 + (entries.Count * 8), blockSize);
int firstEntryOffset = entryOffset;
for (int i = 0; i < entries.Count; i++)
{
PTStream.WriteInt32BE(destination, entryOffset);
PTStream.WriteInt32BE(destination, entries[i].Length);
entryOffset += PTMethods.RoundUp(entries[i].Length, blockSize);
}
// Pad before writing out the file data
while ((destination.Position - offset) % blockSize != 0)
{
destination.WriteByte(0);
}
// Write out the file data for each entry
for (int i = 0; i < entries.Count; i++)
{
PTStream.CopyToPadded(entries[i].Open(), destination, blockSize, 0);
// Call the file added event
OnFileAdded(EventArgs.Empty);
}
}
public AfsArchiveReader(Stream source) : base(source)
{
// Get the number of entries in the archive
source.Position += 4;
int numEntries = PTStream.ReadInt32(source);
entries = new ArchiveEntryCollection(this, numEntries);
// Get the offset of the metadata
source.Position += (numEntries * 8);
int metadataOffset = PTStream.ReadInt32(source);
// If the offset isn't stored there, then it is stored right before the offset of the first entry
if (metadataOffset == 0)
{
source.Position = startOffset + 8;
source.Position = PTStream.ReadInt32(source) - 8;
metadataOffset = PTStream.ReadInt32(source);
}
// Read in all the entries
for (int i = 0; i < numEntries; i++)
{
// Read in the entry offset and length
source.Position = startOffset + 8 + (i * 8);
int entryOffset = PTStream.ReadInt32(source);
int entryLength = PTStream.ReadInt32(source);
// Read in the entry file name
source.Position = metadataOffset + (i * 48);
string entryFname = PTStream.ReadCString(source, 32);
// Add this entry to the collection
entries.Add(startOffset + entryOffset, entryLength, entryFname);
}
// Set the position of the stream to the end of the file
source.Seek(0, SeekOrigin.End);
}
public AcxArchiveReader(Stream source) : base(source)
{
// Get the number of entries in the archive
source.Position += 4;
int numEntries = PTStream.ReadInt32BE(source);
entries = new ArchiveEntryCollection(this, numEntries);
// Read in all the entries
for (int i = 0; i < numEntries; i++)
{
// Read in the entry offset and length
int entryOffset = PTStream.ReadInt32BE(source);
int entryLength = PTStream.ReadInt32BE(source);
// Add this entry to the collection
entries.Add(startOffset + entryOffset, entryLength, String.Empty);
}
// Set the position of the stream to the end of the file
source.Seek(0, SeekOrigin.End);
}
public OneUnleashedArchiveReader(Stream source) : base(source)
{
// Get the number of entries in the archive
source.Position += 4;
int numEntries = PTStream.ReadInt32(source);
entries = new ArchiveEntryCollection(this, numEntries);
// Read in all the entries
for (int i = 0; i < numEntries; i++)
{
// Read in the entry filename, offset, and length
string entryFilename = PTStream.ReadCString(source, 56);
int entryOffset = PTStream.ReadInt32(source);
int entryLength = PTStream.ReadInt32(source);
// Add this entry to the collection
entries.Add(startOffset + entryOffset, entryLength, entryFilename);
}
// Set the position of the stream to the end of the file
source.Seek(0, SeekOrigin.End);
}
/// <summary>
/// Determines if the data is in the specified format.
/// </summary>
/// <param name="source">The stream to read from.</param>
/// <param name="length">Number of bytes to read.</param>
/// <param name="fname">Name of the file.</param>
/// <returns>True if the data is in the specified format, false otherwise.</returns>
public override bool Is(Stream source, int length, string fname)
{
return(length > 16 &&
PTStream.Contains(source, 0, new byte[] { (byte)'C', (byte)'N', (byte)'X', 0x2 }) &&
PTStream.ReadInt32BEAt(source, source.Position + 8) + 16 == length);
}
public override bool Is(Stream source, int length, string fname)
{
return(length > 8 && PTStream.Contains(source, 0, new byte[] { (byte)'A', (byte)'F', (byte)'S', 0 }));
}
public override void Flush()
{
// The start of the archive
long offset = destination.Position;
// Magic code "AFS\0"
destination.WriteByte((byte)'A');
destination.WriteByte((byte)'F');
destination.WriteByte((byte)'S');
destination.WriteByte(0);
// Number of entries in the archive
PTStream.WriteInt32(destination, entries.Count);
// Write out the header for the archive
int entryOffset = PTMethods.RoundUp(12 + (entries.Count * 8), blockSize);
int firstEntryOffset = entryOffset;
for (int i = 0; i < entries.Count; i++)
{
PTStream.WriteInt32(destination, entryOffset);
PTStream.WriteInt32(destination, entries[i].Length);
entryOffset += PTMethods.RoundUp(entries[i].Length, blockSize);
}
// If this is AFS v1, then the metadata offset is stored at 8 bytes before
// the first entry offset.
if (version == AfsVersion.Version1)
{
destination.Position = offset + firstEntryOffset - 8;
}
// Write out the metadata offset and length
PTStream.WriteInt32(destination, entryOffset);
PTStream.WriteInt32(destination, entries.Count * 48);
destination.Position = offset + firstEntryOffset;
// Write out the file data for each entry
for (int i = 0; i < entries.Count; i++)
{
PTStream.CopyToPadded(entries[i].Open(), destination, blockSize, 0);
// Call the file added event
OnFileAdded(EventArgs.Empty);
}
// Write out the footer for the archive
for (int i = 0; i < entries.Count; i++)
{
PTStream.WriteCString(destination, entries[i].Name, 32);
// File timestamp
if (HasTimestamps && !String.IsNullOrEmpty(entries[i].Path) && File.Exists(entries[i].Path))
{
// File exists, let's read in the file timestamp
FileInfo fileInfo = new FileInfo(entries[i].Path);
PTStream.WriteInt16(destination, (short)fileInfo.LastWriteTime.Year);
PTStream.WriteInt16(destination, (short)fileInfo.LastWriteTime.Month);
PTStream.WriteInt16(destination, (short)fileInfo.LastWriteTime.Day);
PTStream.WriteInt16(destination, (short)fileInfo.LastWriteTime.Hour);
PTStream.WriteInt16(destination, (short)fileInfo.LastWriteTime.Minute);
PTStream.WriteInt16(destination, (short)fileInfo.LastWriteTime.Second);
}
else
{
// File does not exist, just store all 0s
PTStream.WriteInt16(destination, 0);
PTStream.WriteInt16(destination, 0);
PTStream.WriteInt16(destination, 0);
PTStream.WriteInt16(destination, 0);
PTStream.WriteInt16(destination, 0);
PTStream.WriteInt16(destination, 0);
}
// Write out this data that I have no idea what its purpose is
long oldPosition = destination.Position;
byte[] buffer = new byte[4];
if (version == AfsVersion.Version1)
{
destination.Position = offset + 8 + (i * 8);
}
else
{
destination.Position = offset + 4 + (i * 4);
}
destination.Read(buffer, 0, 4);
destination.Position = oldPosition;
destination.Write(buffer, 0, 4);
}
// Finish padding out the archive
while ((destination.Position - offset) % blockSize != 0)
{
destination.WriteByte(0);
}
}
public NarcArchiveReader(Stream source) : base(source)
{
// Read the archive header
source.Position += 12;
ushort fatbOffset = PTStream.ReadUInt16(source); // Should always be 0x10
// Read the FATB chunk
source.Position = startOffset + fatbOffset + 4;
uint fntbOffset = fatbOffset + PTStream.ReadUInt32(source);
// Get the number of entries in the archive
int numEntries = PTStream.ReadInt32(source);
entries = new ArchiveEntryCollection(this, numEntries);
// Let's check to see if this is a Puyo Tetris PS3 NARC by checking the offset of the first file.
// It seems that offsets are stored differently than a normal NARC.
bool isPs3Narc = (PTStream.ReadUInt32(source) == 0);
// This is a Puyo Tetris PS3 NARC.
if (isPs3Narc)
{
// Read the FNTB chunk
source.Position = startOffset + fntbOffset + 4;
uint fimgOffset = fntbOffset + PTStream.ReadUInt32(source);
bool hasFilenames = (fimgOffset - fntbOffset != 16);
uint filenameOffset = fntbOffset + 8 + PTStream.ReadUInt32(source);
// Read in all the entries
source.Position = startOffset + fatbOffset + 12;
for (int i = 0; i < numEntries; i++)
{
// Read the entry offset and length
int entryOffset = PTStream.ReadInt32(source);
int entryLength = PTStream.ReadInt32(source) - entryOffset;
// Read the filename (if it has one)
string entryFname = String.Empty;
if (hasFilenames)
{
long oldPosition = source.Position;
source.Position = startOffset + filenameOffset;
byte fnameLength = PTStream.ReadByte(source);
// Puyo Tools can't handle directory names. Just skip over them for now.
if ((fnameLength & 0x80) != 0)
{
// Go only up to fimgOffset to prevent an infinite loop
// (though that should never happen for a properly formatted NARC).
while ((fnameLength & 0x80) != 0 && filenameOffset < fimgOffset)
{
fnameLength &= 0x7F;
filenameOffset += (uint)(fnameLength + 4);
source.Position += fnameLength + 3;
fnameLength = PTStream.ReadByte(source);
}
}
entryFname = PTStream.ReadCString(source, fnameLength);
filenameOffset += (uint)(fnameLength + 1);
source.Position = oldPosition;
}
// Add this entry to the collection
entries.Add(startOffset + fimgOffset + 8 + entryOffset, entryLength, entryFname);
}
}
// This is a NDS NARC.
else
{
// Read the FNTB chunk
source.Position = startOffset + fntbOffset + 4;
bool hasFilenames = (PTStream.ReadUInt32(source) == 8);
uint filenameOffset = fntbOffset + 8 + PTStream.ReadUInt32(source);
// Read in all the entries
source.Position = startOffset + fatbOffset + 12;
for (int i = 0; i < numEntries; i++)
{
// Read the entry offset and length
int entryOffset = PTStream.ReadInt32(source);
int entryLength = PTStream.ReadInt32(source) - entryOffset;
// Read the filename (if it has one)
string entryFname = String.Empty;
if (hasFilenames)
{
long oldPosition = source.Position;
source.Position = startOffset + filenameOffset;
byte fnameLength = PTStream.ReadByte(source);
entryFname = PTStream.ReadCString(source, fnameLength);
filenameOffset += (uint)(fnameLength + 1);
source.Position = oldPosition;
}
// Add this entry to the collection
entries.Add(startOffset + entryOffset, entryLength, entryFname);
}
}
// Set the position of the stream to the end of the file
source.Seek(0, SeekOrigin.End);
}
public override bool Is(Stream source, int length, string fname)
{
return(length > 12 && PTStream.Contains(source, 0, new byte[] { (byte)'P', (byte)'V', (byte)'M', (byte)'H' }));
}
public override void Flush()
{
// Determine the length of each entry in the header
// and the flags that indicate what is stored in the header
int entryLength = 2;
ushort flags = 0;
if (HasFilenames)
{
entryLength += 28;
flags |= 0x8;
}
if (HasFormats)
{
entryLength += 2;
flags |= 0x4;
}
if (HasDimensions)
{
entryLength += 2;
flags |= 0x2;
}
if (HasGlobalIndexes)
{
entryLength += 4;
flags |= 0x1;
}
// Write the start of the header
destination.WriteByte((byte)'P');
destination.WriteByte((byte)'V');
destination.WriteByte((byte)'M');
destination.WriteByte((byte)'H');
// Offset of the first texture in the archive
long entryOffset = PTMethods.RoundUp(12 + (entries.Count * entryLength), 16);
PTStream.WriteInt32(destination, (int)entryOffset - 8);
// Write out the flags
PTStream.WriteUInt16(destination, flags);
// Write out the number of entries
PTStream.WriteUInt16(destination, (ushort)entries.Count);
// We're going to be using this a few times. Might as well do this here
long oldPosition;
// Now, let's add the entries
for (int i = 0; i < entries.Count; i++)
{
Stream entryData = entries[i].Open();
// We need to get some information about the texture.
// We already checked to make sure this texture is a PVR.
// No need to check it again.
oldPosition = entryData.Position;
VrSharp.PvrTexture.PvrTexture texture = new VrSharp.PvrTexture.PvrTexture(entryData);
entryData.Position = oldPosition;
// Write out the entry number
PTStream.WriteUInt16(destination, (ushort)i);
// Write the information for this entry in the header
if (HasFilenames)
{
PTStream.WriteCString(destination, Path.GetFileNameWithoutExtension(entries[i].Name), 28);
}
if (HasFormats)
{
destination.WriteByte(0);
destination.WriteByte((byte)texture.DataFormat);
}
if (HasDimensions)
{
ushort dimensions = 0;
dimensions |= (ushort)(((byte)Math.Log(texture.TextureWidth, 2) - 2) & 0xF);
dimensions |= (ushort)((((byte)Math.Log(texture.TextureHeight, 2) - 2) & 0xF) << 4);
PTStream.WriteUInt16(destination, dimensions);
}
if (HasGlobalIndexes)
{
PTStream.WriteUInt32(destination, texture.GlobalIndex);
}
// Now write out the entry information
oldPosition = destination.Position;
destination.Position = entryOffset;
entryData.Position += texture.PvrtOffset;
PTStream.CopyToPadded(entryData, destination, 16, 0);
entryOffset = destination.Position;
destination.Position = oldPosition;
// Call the file added event
OnFileAdded(EventArgs.Empty);
}
}
/// <summary>
/// Decompress data from a stream.
/// </summary>
/// <param name="source">The stream to read from.</param>
/// <param name="destination">The stream to write to.</param>
public override void Decompress(Stream source, Stream destination)
{
source.Position += 8;
// Get the source length and destination length
int sourceLength = PTStream.ReadInt32BE(source) + 16;
int destinationLength = PTStream.ReadInt32BE(source);
// Set the source, destination, and buffer pointers
int sourcePointer = 0x10;
int destinationPointer = 0x0;
int bufferPointer = 0x0;
// Initalize the buffer
byte[] buffer = new byte[0x800];
// Start decompression
while (sourcePointer < sourceLength)
{
byte flag = PTStream.ReadByte(source);
sourcePointer++;
for (int i = 0; i < 4; i++)
{
byte value;
ushort matchPair;
int matchDistance, matchLength;
switch (flag & 0x3)
{
// Jump to the next 0x800 boundary
case 0:
value = PTStream.ReadByte(source);
sourcePointer += value + 1;
source.Position += value;
i = 3;
break;
// Not compressed, single byte
case 1:
value = PTStream.ReadByte(source);
sourcePointer++;
destination.WriteByte(value);
destinationPointer++;
buffer[bufferPointer] = value;
bufferPointer = (bufferPointer + 1) & 0x7FF;
break;
// Compressed
case 2:
matchPair = PTStream.ReadUInt16BE(source);
sourcePointer += 2;
matchDistance = (matchPair >> 5) + 1;
matchLength = (matchPair & 0x1F) + 4;
for (int j = 0; j < matchLength; j++)
{
destination.WriteByte(buffer[(bufferPointer - matchDistance) & 0x7FF]);
destinationPointer++;
buffer[bufferPointer] = buffer[(bufferPointer - matchDistance) & 0x7FF];
bufferPointer = (bufferPointer + 1) & 0x7FF;
}
break;
// Not compressed, multiple bytes
case 3:
matchLength = PTStream.ReadByte(source);
sourcePointer++;
for (int j = 0; j < matchLength; j++)
{
value = PTStream.ReadByte(source);
sourcePointer++;
destination.WriteByte(value);
destinationPointer++;
buffer[bufferPointer] = value;
bufferPointer = (bufferPointer + 1) & 0x7FF;
}
break;
}
// Check to see if we reached the end of the source
if (sourcePointer >= sourceLength)
{
break;
}
// Check to see if we wrote too much data to the destination
if (destinationPointer > destinationLength)
{
throw new Exception("Too much data written to the destination.");
}
flag >>= 2;
}
}
}
public override bool Is(Stream source, int length, string fname)
{
return(length > 12 &&
PTStream.Contains(source, 0, new byte[] { (byte)'N', (byte)'A', (byte)'R', (byte)'C', 0xFE, 0xFF, 0x00, 0x01 }) &&
PTStream.ReadInt32At(source, source.Position + 8) == length);
}
public PvmArchiveReader(Stream source) : base(source)
{
// The offset of the first entry
source.Position += 4;
int entryOffset = PTStream.ReadInt32(source) + 8;
int headerOffset = 0xC;
// Read what properties this archive stores for each texture
byte properties = PTStream.ReadByte(source);
hasFilenames = (properties & (1 << 3)) > 0;
hasFormats = (properties & (1 << 2)) > 0;
hasDimensions = (properties & (1 << 1)) > 0;
hasGlobalIndexes = (properties & (1 << 0)) > 0;
source.Position++;
// Determine the size of each entry in the entry table
tableEntryLength = 2;
if (hasFilenames)
{
tableEntryLength += 28;
}
if (hasFormats)
{
tableEntryLength += 2;
}
if (hasDimensions)
{
tableEntryLength += 2;
}
if (hasGlobalIndexes)
{
globalIndexOffset = tableEntryLength;
tableEntryLength += 4;
}
// Get the number of entries in the archive
ushort numEntries = PTStream.ReadUInt16(source);
entries = new ArchiveEntryCollection(this, numEntries);
// Read in all the entries
for (int i = 0; i < numEntries; i++)
{
// We need to need to determine the offset based on the length,
// which is stored in the texture data.
// We already have the entry offset
source.Position = startOffset + entryOffset + 4;
int entryLength = PTStream.ReadInt32(source) + 8;
string entryFname = String.Empty;
if (hasFilenames)
{
source.Position = startOffset + headerOffset + 2;
entryFname = PTStream.ReadCString(source, 28) + ".pvr";
headerOffset += tableEntryLength;
}
// Add this entry to the collection
entries.Add(startOffset + entryOffset, entryLength, entryFname);
entryOffset += entryLength;
}
// Set the position of the stream to the end of the file
source.Seek(0, SeekOrigin.End);
}
/// <summary>
/// Determines if the data is in the specified format.
/// </summary>
/// <param name="source">The stream to read from.</param>
/// <param name="length">Number of bytes to read.</param>
/// <param name="fname">Name of the file.</param>
/// <returns>True if the data is in the specified format, false otherwise.</returns>
public override bool Is(Stream source, int length, string fname)
{
return(Path.GetExtension(fname).ToLower() == ".prs" && length > 2 && PTStream.Contains(source, length - 2, new byte[] { 0, 0 }));
}
public override bool Is(Stream source, int length, string fname)
{
return(length > 16 && PTStream.Contains(source, 0, new byte[] { (byte)'T', (byte)'E', (byte)'X', (byte)'0' }));
}
