//-----------------------------------------------------------------------------------
void heightFieldToChunk(HeightsGen hg, ref ExportResults results)
{
ECF.ECFChunkHolder chunkHolder = new ECF.ECFChunkHolder();
chunkHolder.mDataMemStream = new MemoryStream();
BinaryWriter binWriter = new BinaryWriter(chunkHolder.mDataMemStream);
binWriter.Write(Xbox_EndianSwap.endSwapI32((int)hg.mHeightFieldAttributes.mWidth));
binWriter.Write(Xbox_EndianSwap.endSwapI32((int)hg.mHeightFieldAttributes.mHeight));
binWriter.Write(Xbox_EndianSwap.endSwapF32(hg.mHeightFieldAttributes.mWorldMinY));
binWriter.Write(Xbox_EndianSwap.endSwapF32(hg.mHeightFieldAttributes.mWorldMaxY));
binWriter.Write(Xbox_EndianSwap.endSwapF32(hg.mHeightFieldAttributes.mWorldRangeY));
binWriter.Write(Xbox_EndianSwap.endSwapF32(hg.mHeightFieldAttributes.mBounds.min.X));
binWriter.Write(Xbox_EndianSwap.endSwapF32(hg.mHeightFieldAttributes.mBounds.min.Y));
binWriter.Write(Xbox_EndianSwap.endSwapF32(hg.mHeightFieldAttributes.mBounds.min.Z));
binWriter.Write(Xbox_EndianSwap.endSwapF32(hg.mHeightFieldAttributes.mBounds.max.X));
binWriter.Write(Xbox_EndianSwap.endSwapF32(hg.mHeightFieldAttributes.mBounds.max.Y));
binWriter.Write(Xbox_EndianSwap.endSwapF32(hg.mHeightFieldAttributes.mBounds.max.Z));
binWriteMatrix(binWriter, hg.mHeightFieldAttributes.mNormZToWorld);
binWriteMatrix(binWriter, hg.mHeightFieldAttributes.mWorldToNormZ);
binWriter.Write(Xbox_EndianSwap.endSwapI32(hg.mHeightFieldAttributes.mpTexelsHI.Length));
int memSize = hg.mHeightFieldAttributes.mpTexelsHI.Length * 2 * sizeof(short);
binWriter.Write(Xbox_EndianSwap.endSwapI32(memSize));
//expect the texture as G16R16, NON FLOAT! Just 16 bits of short.
int numShorts = hg.mHeightFieldAttributes.mpTexelsHI.Length * 2;
short[] sArray = new short[numShorts];
for (int i = 0; i < hg.mHeightFieldAttributes.mpTexelsHI.Length; i++)
{
sArray[i * 2 + 0] = (short)Xbox_EndianSwap.endSwapI16((ushort)hg.mHeightFieldAttributes.mpTexelsHI[i]);
sArray[i * 2 + 1] = (short)Xbox_EndianSwap.endSwapI16((ushort)hg.mHeightFieldAttributes.mpTexelsLO[i]);
}
//tileswap
short[] tempbytearray = new short[sArray.Length];
sArray.CopyTo(tempbytearray, 0);
ExportTo360.tileCopy(ref tempbytearray, tempbytearray, (int)hg.mHeightFieldAttributes.mWidth, (int)hg.mHeightFieldAttributes.mHeight, ExportTo360.eTileCopyFormats.cTCFMT_G16R16);
// tempbytearray.CopyTo(sArray, 0);
for (int i = 0; i < tempbytearray.Length; i++)
{
binWriter.Write(tempbytearray[i]);
}
ExportTo360.mECF.addChunk((int)eXTH_ChunkID.cXTH_TerrainHeightfield, chunkHolder, binWriter.BaseStream.Length);
binWriter.Close();
binWriter = null;
chunkHolder.Close();
chunkHolder = null;
results.terrainGPUHeighfieldMemory = memSize;
}
//-----------------------------------------------------------------------------------
public bool export_XTH(string filename, ExportSettings expSettings, ref ExportResults results)
{
DateTime n = DateTime.Now;
HeightsGen hg = new HeightsGen();
hg.computeHeightField(256, 256, true, BMathLib.unitZ, 8);
headerToChunk();
heightFieldToChunk(hg, ref results); //turn our data into a ECF chunk
heightFieldAlphaToChunk(ref results);
bool exportOK = ExportTo360.safeECFFileWrite(filename, ".XTH");
hg.destroy();
TimeSpan ts = DateTime.Now - n;
results.terrainGPUHeighfieldTime = ts.TotalMinutes;
return(exportOK);
}
