public Bitmap GetFarTileTexture(uint textureId)
{
if (String.IsNullOrEmpty(_terrainDB.FarTilesDotDdsFilePath) && (String.IsNullOrEmpty(_terrainDB.FarTilesDotRawFilePath)))
{
return(null);
}
if (_terrainDB.FarTilesDotDdsFilePath != null)
{
var fileInfo = new FileInfo(_terrainDB.FarTilesDotDdsFilePath);
var useDDS = true;
if (!fileInfo.Exists)
{
useDDS = false;
fileInfo = new FileInfo(_terrainDB.FarTilesDotRawFilePath);
if (!fileInfo.Exists)
{
return(null);
}
}
Bitmap bitmap;
if (useDDS)
{
using (var stream = File.OpenRead(_terrainDB.FarTilesDotDdsFilePath))
{
var headerSize = Marshal.SizeOf(typeof(NativeMethods.DDSURFACEDESC2));
var header = new byte[headerSize];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(header, 0, headerSize);
var pinnedHeader = GCHandle.Alloc(header, GCHandleType.Pinned);
var surfaceDesc =
(NativeMethods.DDSURFACEDESC2)
Marshal.PtrToStructure(pinnedHeader.AddrOfPinnedObject(),
typeof(NativeMethods.DDSURFACEDESC2));
pinnedHeader.Free();
var imageSize = ((surfaceDesc.dwFlags & NativeMethods.DDSD_PITCH) == NativeMethods.DDSD_PITCH)
? surfaceDesc.dwHeight * surfaceDesc.lPitch
: surfaceDesc.dwLinearSize;
var ddsBytes = new byte[headerSize + 4 + imageSize];
ddsBytes[0] = 0x44;
ddsBytes[1] = 0x44;
ddsBytes[2] = 0x53;
ddsBytes[3] = 0x20;
Array.Copy(header, 0, ddsBytes, 4, header.Length);
stream.Seek((imageSize * textureId), SeekOrigin.Current);
stream.Read(ddsBytes, headerSize + 4, imageSize);
bitmap = DDS.GetBitmapFromDDSFileBytes(ddsBytes);
stream.Close();
}
}
else
{
bitmap = new Bitmap(32, 32, PixelFormat.Format8bppIndexed);
var pal = bitmap.Palette;
for (var i = 0; i < 256; i++)
{
pal.Entries[i] = _terrainDB.FarTilesDotPal.pallete[i];
}
bitmap.Palette = pal;
using (var stream = File.OpenRead(_terrainDB.FarTilesDotRawFilePath))
{
const int imageSizeBytes = 32 * 32;
stream.Seek(imageSizeBytes * textureId, SeekOrigin.Begin);
var bytesRead = new byte[imageSizeBytes];
stream.Read(bytesRead, 0, imageSizeBytes);
var lockData = bitmap.LockBits(new Rectangle(0, 0, 32, 32), ImageLockMode.WriteOnly,
bitmap.PixelFormat);
var scan0 = lockData.Scan0;
var height = lockData.Height;
var width = lockData.Width;
Marshal.Copy(bytesRead, 0, scan0, width * height);
bitmap.UnlockBits(lockData);
stream.Close();
}
}
return(bitmap);
}
return(null);
}
