public PigFile(byte [] buffer, Palette palette)
{
int offset = BitConverter.ToInt32(buffer, 0);
TotalTextures = BitConverter.ToInt32(buffer, offset);
offset += 4;
TotalSounds = BitConverter.ToInt32(buffer, offset);
offset += 4;
for (var i = 0; i < TotalTextures; i++)
{
var pigTexture = new PigTexture();
pigTexture.Name = buffer.ByteArrayToString(offset, 8).Trim();
offset += 8;
pigTexture.DFlags = buffer[offset++];
pigTexture.Width = buffer[offset++];
pigTexture.Height = buffer[offset++];
pigTexture.Flags = buffer[offset++];
pigTexture.AveColor = buffer[offset++];
pigTexture.Offset = BitConverter.ToInt32(buffer, offset);
offset += 4;
if ((pigTexture.DFlags & 128) != 0)
{
//pigTexture.Width += 256;
}
Textures.Add(pigTexture);
}
for (var i = 0; i < TotalSounds; i++)
{
var pigSound = new PigSound();
pigSound.Name = buffer.ByteArrayToString(offset, 8).Trim();
offset += 8;
pigSound.Length = BitConverter.ToInt32(buffer, offset);
offset += 4;
pigSound.DataLength = BitConverter.ToInt32(buffer, offset);
offset += 4;
pigSound.Offset = BitConverter.ToInt32(buffer, offset);
offset += 4;
Sounds.Add(pigSound);
}
var pigDataStart = offset;
// read all the texture data
foreach (var texture in Textures)
{
offset = texture.Offset + pigDataStart;
if (texture.RunLengthEncoded)
{
var size = BitConverter.ToInt32(buffer, offset);
offset += 4;
offset += texture.Height;
if ((texture.DFlags & 32) != 0)
{
offset += texture.Height;
}
texture.Data = new byte[size];
for (var i = 0; i < size; i++)
{
texture.Data[i] = buffer[i + offset];
}
// uncompress
var result = new List <byte>();
int j = 0;
while (j < size - 5)
{
var color = texture.Data[j++];
if (color == 0xe0)
{
continue;
}
if ((color & 0xe0) == 0xe0)
{
var count = color & 0x1f;
color = texture.Data[j++];
for (var k = 0; k < count; k++)
{
result.Add(color);
}
}
else
{
result.Add(color);
}
}
// replace with decoded data
texture.Data = result.ToArray();
}
else
{
var size = texture.Height * texture.Width;
texture.Data = new byte[size];
for (var i = 0; i < size; i++)
{
texture.Data[i] = buffer[i + offset];
}
}
//TODO: need to convert indexed data into 32 bit per pixel true color
var endResults = new List <byte>();
for (var i = 0; i < texture.Data.Length; i++)
{
var color = palette.paletteColors[texture.Data[i]];
endResults.Add(color.R);
endResults.Add(color.G);
endResults.Add(color.B);
}
texture.Data = endResults.ToArray();
}
}
static void Main(string[] args)
{
var assembly = Assembly.GetExecutingAssembly();
using (var stream = assembly.GetManifestResourceStream("DescentHogFileReader.DESCENT.HOG"))
{
byte[] buffer = new byte[stream.Length];
stream.Read(buffer, 0, buffer.Length);
char[] sig = { (char)buffer[0], (char)buffer[1], (char)buffer[2] };
int index = 3;
var fileData = new List <HogFile>();
int totalFiles = 0;
while (index < buffer.Length)
{
fileData.Add(new HogFile(buffer, index));
index += fileData[fileData.Count - 1].FileSize + 13 + 4;
// write file to output directory
File.WriteAllBytes(_outputDirectory + fileData[fileData.Count - 1].FileName, fileData[fileData.Count - 1].Data);
Console.WriteLine(fileData[fileData.Count - 1].FileName + " (" + fileData[fileData.Count - 1].FileSize.ToString("N0") + ")");
totalFiles++;
}
}
// read the palette
Palette paletteData;
using (var stream = assembly.GetManifestResourceStream("DescentHogFileReader.palette.256"))
{
byte[] buffer = new byte[stream.Length];
stream.Read(buffer, 0, buffer.Length);
paletteData = new Palette(buffer);
}
// read the textures
using (var stream = assembly.GetManifestResourceStream("DescentHogFileReader.DESCENT.PIG"))
{
byte[] buffer = new byte[stream.Length];
stream.Read(buffer, 0, buffer.Length);
// read the textures and sounds
var pigData = new PigFile(buffer, paletteData);
// dump all the textures
if (!Directory.Exists(_textureOutputDirectory))
{
Directory.CreateDirectory(_textureOutputDirectory);
}
File.Delete(_textureOutputDirectory + "texture_list.txt");
foreach (var texture in pigData.Textures)
{
if ((texture.DFlags & 63) == 0)
{
try
{
var bitmap = new Bitmap(texture.Width, texture.Height, PixelFormat.Format24bppRgb);
var bmData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadWrite, bitmap.PixelFormat);
var pNative = bmData.Scan0;
Marshal.Copy(texture.Data, 0, pNative, texture.Width * texture.Height * 3);
bitmap.UnlockBits(bmData);
bitmap.Save(_textureOutputDirectory + texture.Name.Trim() + ".png", ImageFormat.Png);
}
catch (Exception e)
{
}
}
File.AppendAllText(_textureOutputDirectory + "texture_list.txt", texture.Name + " (" + texture.Width + " x " + texture.Height + $", Frame:{texture.DFlags & 63}{(texture.RunLengthEncoded ? " RLE" : "")})" + Environment.NewLine);
}
}
Console.ReadKey();
}