public Bitmap GetEntryBitmap(int entryIndex)
{
if (entryIndex >= Entries.Count)
{
return(null);
}
var entry = Entries[entryIndex];
if (entry.Edited)
{
return(entry.Bitmap);
}
else
{
var gpuFileStream = new FileStream(_gpuFilePath, FileMode.Open);
var rawData = new byte[entry.frame_size];
gpuFileStream.Skip(entry.data);
gpuFileStream.Read(rawData, 0, (int)entry.frame_size);
var bitmap = PegUtil.RawDataToBitmap(rawData, entry.bitmap_format, entry.width, entry.height);
gpuFileStream.Dispose();
return(bitmap);
}
}
//Todo: Consider adding warnings for unusual, problematic, or unsupported values. Maybe change some existing exceptions to warnings.
public void Read(Stream cpuFileStream, Stream gpuFileStream)
{
Entries.Clear();
var header = new BinaryReader(cpuFileStream);
var data = new BinaryReader(gpuFileStream);
Signature = header.ReadUInt32();
if (Signature != 1447773511) //Equals GEKV as a string
{
throw new Exception("Header signature must be GEKV. Invalid peg file. Make sure that your packfile extractor didn't incorrectly extract the peg file you're trying to open.");
}
Version = header.ReadUInt16();
if (Version != 10)
{
throw new Exception($"Unsupported peg format version detected! Only peg version 10 is supported. Version {Version} was detected");
}
Platform = header.ReadUInt16(); //Todo: Add exception or warning for unknown or unsupported platform.
DirectoryBlockSize = header.ReadUInt32();
if (header.BaseStream.Length != DirectoryBlockSize)
{
throw new Exception($"Error, the size of the header file (cpeg_pc or cvbm_pc) does not match the size value stored in the header! Actual size: {header.BaseStream.Length} bytes, stored size: {DirectoryBlockSize} bytes.");
}
DataBlockSize = header.ReadUInt32();
NumberOfBitmaps = header.ReadUInt16();
Flags = header.ReadUInt16();
TotalEntries = header.ReadUInt16();
AlignValue = header.ReadUInt16();
//Read peg entries
int currentDataOffset = 0;
for (int i = 0; i < NumberOfBitmaps; i++)
{
var entry = new PegEntry();
entry.Read(header);
Entries.Add(entry);
//entry.GpuFileDataOffset = currentDataOffset;
//currentDataOffset += (int)entry.frame_size;
//currentDataOffset +=
}
//Read peg entry names
foreach (var entry in Entries)
{
entry.Name = PegUtil.ReadNullTerminatedString(header);
}
//Load raw texture data from gpu file, convert to bitmaps for easy handling
//foreach (var entry in Entries)
//{
// entry.RawData = new byte[entry.frame_size];
// data.Read(entry.RawData, 0, (int)entry.frame_size);
// entry.Bitmap = PegUtil.EntryDataToBitmap(entry);
//}
}