/// <summary>
/// Try to figure out if this is a transmasked texture
/// </summary>
public static bool isTransMaskedTexture(byte[] lumpdata)
{
/*
* masked & transmasked have the same first 6 bytes (= 3x short) in common:
* origsize
* width
* height
*
* This is a format Doom, Strife or Heretic don't know about. Only ROTT does!
*
*/
bool trmaskedTexture = false;
if (lumpdata.Length > Rott2DTransMaskedHeader.TRANSMASKED_HEADER_SIZE)
{
Rott2DTransMaskedHeader header = new Rott2DTransMaskedHeader();
header.Width = BitConverter.ToUInt16(lumpdata, 2); //width
header.Height = BitConverter.ToUInt16(lumpdata, 4); //height
header.TransLevel = BitConverter.ToUInt16(lumpdata, 10); //read trans level
if ((header.Width >= TRANSMASKED_MIN_TEXTURE_BOUNDS) && (header.Width < TRANSMASKED_MAX_TEXTURE_BOUNDS))
{
if ((header.Height >= TRANSMASKED_MIN_TEXTURE_BOUNDS) && (header.Height < TRANSMASKED_MAX_TEXTURE_BOUNDS))
{
if ((header.TransLevel == 21) || (header.TransLevel == 34)) //check to be sure this is a transmasked.
{
//we have proably a transmasked
trmaskedTexture = true;
//extra sanity check on the columns data
if (lumpdata.Length < (Rott2DTransMaskedHeader.TRANSMASKED_HEADER_SIZE + (header.Width * sizeof(ushort))))
{
trmaskedTexture = false;
}
for (int c = 0; c < header.Width; c++)
{
if ((lumpdata[Rott2DTransMaskedHeader.TRANSMASKED_HEADER_SIZE + c] > lumpdata.Length) ||
(lumpdata[Rott2DTransMaskedHeader.TRANSMASKED_HEADER_SIZE + c] < ((header.Width) + Rott2DTransMaskedHeader.TRANSMASKED_HEADER_SIZE)))
{
trmaskedTexture = true;
}
}
}
}
}
}
return(trmaskedTexture);
}
private int _dataSize = 0; //image data size, without the header
#endregion
#region Constructor
/// <summary>
/// Constructor
/// </summary>
public Rott2DTransMasked(ref byte[] transmaskedLumpData, ref Rott2DPalette palette)
{
this.isHeaderReady = false;
this.isReady = false;
this._rawData = transmaskedLumpData;
this._palette = palette;
this._dataSize = this.GetDataSize() - Rott2DTransMaskedHeader.TRANSMASKED_HEADER_SIZE;
//process header data first
this._transMaskedHeader = new Rott2DTransMaskedHeader();
this.ProcessTransMaskedHeader();
//create buffer from size
if ((this._buffer == null) && (this.isHeaderReady))
{
this._buffer = new Bitmap(this._transMaskedHeader.Width, this._transMaskedHeader.Height, PixelFormat.Format24bppRgb);
}
//generate buffer bitmap
this.ProcessLumpData();
}