internal BulkDataInfo FindCompressedDataHeader(Mipmap mipmap)
{
BulkDataInfo info = bulk[mipmap.MipIdx];
if (info.Width == mipmap.Width && info.Height == mipmap.Height ||
info.Width == 4 && mipmap.Width < 4 && info.Height == 4 && mipmap.Height < 4)
{
return(info);
}
throw new Exception("BulkDataInfo for specified mipmap was not found.");
}
internal void ReplaceTexture(Texture2D texture, DDSFile dds)
{
for (int mipId = 0; mipId < dds.MipmapCount; mipId++)
{
Mipmap mipmap = dds.GetMipmap(mipId);
Texture2D.BulkDataInfo info = texture.FindCompressedDataHeader(mipmap);;
if (info.Format == 16)
{
mipmap.Compress();
}
if (mipmap.CompressedSize > info.CompressedSize)
{
throw new Exception("New DDS is larger than the old one");
}
//fs.Seek(info.OffsetInUpk - 8, SeekOrigin.Begin);
//writer.Write(Convert.ToInt32(mipmap.CompressedSize));
fs.Seek(info.OffsetInUpk, SeekOrigin.Begin);
writer.Write(mipmap.CompressedData);
writer.Write(info.Footer);
}
}