/// <summary>
/// Try to figure out if this is a masked texture
/// </summary>
public static bool isMaskedTexture(byte[] lumpdata)
{
/*
* masked & transmasked have the same first 6 bytes (= 3x short) in common:
* origsize
* width
* height
*
* Masked textures are very alike to the Doom masked textures.
* Only the two extra bits (before and after each post) are not present in ROTT Masked textures.
* Doom used these two extra bits for, non x86, NExT machines.
*
*/
bool maskedTexture = false;
if (lumpdata.Length > Rott2DMaskedHeader.MASKED_HEADER_SIZE)
{
Rott2DMaskedHeader header = new Rott2DMaskedHeader();
header.Width = BitConverter.ToUInt16(lumpdata, 2); //width
header.Height = BitConverter.ToUInt16(lumpdata, 4); //height
if ((header.Width >= MASKED_MIN_TEXTURE_BOUNDS) && (header.Width < MASKED_MAX_TEXTURE_BOUNDS))
{
if ((header.Height >= MASKED_MIN_TEXTURE_BOUNDS) && (header.Height < MASKED_MAX_TEXTURE_BOUNDS))
{
maskedTexture = true; //probably a masked textures
//do an extra check to be sure this is not a transmasked
ushort lastheaderByte = BitConverter.ToUInt16(lumpdata, 10); //standard masked has no translevel, so cannot be 21 or 34
if (((lastheaderByte == 21) || (lastheaderByte == 34)) && ((header.Width >= 64) && (header.Height >= 64)))
{
maskedTexture = false;
} //probably this is a transmasked texture, mark it as none
}
}
}
return(maskedTexture);
}
private int _dataSize = 0; //image data size, without the header
#endregion
#region Constructor
/// <summary>
/// Constructor
/// </summary>
public Rott2DMasked(ref byte[] maskedLumpData, ref Rott2DPalette palette)
{
this.isHeaderReady = false;
this.isReady = false;
this._rawData = maskedLumpData;
this._palette = palette;
this._dataSize = this.GetDataSize() - Rott2DMaskedHeader.MASKED_HEADER_SIZE;
//process header data first
this._maskedHeader = new Rott2DMaskedHeader();
this.ProcessMaskedHeader();
//create buffer from size
if ((this._buffer == null) && (this.isHeaderReady))
{
this._buffer = new Bitmap(this._maskedHeader.Width, this._maskedHeader.Height, PixelFormat.Format24bppRgb);
}
//generate buffer bitmap
this.ProcessLumpData();
}
