public static bool SaveTxPic(IO.XndHolder xnd, ref CTxPicDesc txDesc, string filename,
ETCFormat etcFormat = ETCFormat.RGBA8,
int mipMapLevel = 0)
{
#region Read Pixels
var imageimport = new EngineNS.Bricks.ImageImport.ImageImport();
EngineNS.Support.CBlobObject blob = new EngineNS.Support.CBlobObject();
imageimport.LoadTexture(filename, blob);
int w = imageimport.GetWidth();
int h = imageimport.GetHeight();
int channels = imageimport.GetChannels();
byte[] data = blob.ToBytes();//new byte[w * h * channels];
System.Drawing.Imaging.PixelFormat format = System.Drawing.Imaging.PixelFormat.Undefined;
if (channels == 4)
{
format = System.Drawing.Imaging.PixelFormat.Format32bppArgb;
}
else if (channels == 3)
{
format = System.Drawing.Imaging.PixelFormat.Format24bppRgb;
}
else if (channels == 1)
{
format = System.Drawing.Imaging.PixelFormat.Format32bppArgb;
}
var bitmap = new System.Drawing.Bitmap(w, h, format);
int offset = 0;
for (int j = 0; j < h; j++)
{
for (int i = 0; i < w; i++)
{
if (channels == 4)
{
System.Drawing.Color color = System.Drawing.Color.FromArgb(data[offset + 3], data[offset], data[offset + 1], data[offset + 2]);
offset += 4;
bitmap.SetPixel(i, j, color);
}
else if (channels == 3)
{
System.Drawing.Color color = System.Drawing.Color.FromArgb(data[offset], data[offset + 1], data[offset + 2]);
offset += 3;
bitmap.SetPixel(i, j, color);
}
else if (channels == 1)
{
System.Drawing.Color color = System.Drawing.Color.FromArgb(data[offset++]);
bitmap.SetPixel(i, j, color);
}
}
}
var tagBitmap = bitmap.Clone(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height), System.Drawing.Imaging.PixelFormat.Format32bppArgb);
#endregion
if (bitmap.PixelFormat == System.Drawing.Imaging.PixelFormat.Format8bppIndexed)
{
txDesc.EtcFormat = ETCFormat.UNKNOWN;
}
txDesc.Width = w;
txDesc.Height = h;
SaveTxPic(xnd, ref txDesc, tagBitmap, etcFormat, mipMapLevel);
return(true);
}
public extern static vBOOL SDK_TexCompressor_EncodePng2ETC(NativePointer self, IntPtr ptr, UInt32 size, ETCFormat fmt, int mipmap, Support.CBlobObject.NativePointer blob);
public static void SaveTxPic(IO.XndHolder xnd, ref CTxPicDesc txDesc, Bitmap tagBitmap,
ETCFormat etcFormat = ETCFormat.RGBA8,
int mipMapLevel = 0)
{
#region Png
var attr = xnd.Node.AddAttrib("PNG");
attr.BeginWrite();
var tagStream = new MemoryStream();
tagBitmap.Save(tagStream, System.Drawing.Imaging.ImageFormat.Png);
var pngData = tagStream.ToArray();
attr.Write(pngData, pngData.Length);
attr.EndWrite();
#endregion
#region PngMips
var mipsNode = xnd.Node.AddNode("PngMips", 0, 0);
int curMip = 0;
while (true)
{
var mipAttr = mipsNode.AddAttrib($"Mip_{curMip}");
curMip++;
mipAttr.BeginWrite();
var mipStream = new MemoryStream();
tagBitmap.Save(mipStream, System.Drawing.Imaging.ImageFormat.Png);
var pngMipData = mipStream.ToArray();
mipAttr.Write(pngMipData, pngMipData.Length);
mipAttr.EndWrite();
if (txDesc.MipLevel == curMip)
{
break;
}
if (tagBitmap.Width == 1 && tagBitmap.Height == 1)
{
break;
}
var mipWidth = tagBitmap.Width / 2;
var mipHeight = tagBitmap.Height / 2;
if (mipWidth == 0)
{
mipWidth = 1;
}
if (mipHeight == 0)
{
mipHeight = 1;
}
//tagBitmap = EngineNS.BitmapProc.ScaleBitmap(tagBitmap, mipWidth, mipHeight);
tagBitmap = EngineNS.BitmapProc.GenerateMip(tagBitmap, mipWidth, mipHeight);
}
#endregion
if (CEngine.IsWriteEtc)
{
if (etcFormat != ETCFormat.UNKNOWN)
{
using (var etcBlob = EngineNS.Support.CBlobProxy2.CreateBlobProxy())
{
unsafe
{
fixed(byte *dataPtr = &pngData[0])
{
var texCompressor = new EngineNS.Bricks.TexCompressor.CTexCompressor();
texCompressor.EncodePng2ETC((IntPtr)dataPtr, (uint)pngData.Length, etcFormat, mipMapLevel, etcBlob);
etcBlob.BeginRead();
}
}
if (etcBlob.DataLength >= 0)
{
var etcNode = xnd.Node.AddNode("EtcMips", 0, 0);
int fmt = 0;
int MipLevel = 0;
etcBlob.Read(out fmt);
etcBlob.Read(out MipLevel);
var layer = new EngineNS.Bricks.TexCompressor.ETCLayer();
for (int i = 0; i < MipLevel; i++)
{
etcBlob.Read(out layer);
byte[] etcMipData;
etcBlob.Read(out etcMipData, (int)layer.Size);
var mipAttr = etcNode.AddAttrib($"Mip_{i}");
mipAttr.BeginWrite();
mipAttr.Write(layer);
mipAttr.Write(etcMipData, etcMipData.Length);
mipAttr.EndWrite();
}
}
}
}
}
attr = xnd.Node.AddAttrib("Desc");
txDesc.MipLevel = curMip;
txDesc.EtcFormat = etcFormat;
#region Desc
attr.Version = 3;
attr.BeginWrite();
unsafe
{
fixed(EngineNS.CTxPicDesc *descPin = &txDesc)
{
attr.Write((IntPtr)(descPin), sizeof(EngineNS.CTxPicDesc));
}
}
attr.EndWrite();
#endregion
}
public bool EncodePng2ETC(IntPtr ptr, UInt32 size, ETCFormat fmt, int mipmap, Support.CBlobProxy2 blob)
{
return(SDK_TexCompressor_EncodePng2ETC(CoreObject, ptr, size, fmt, mipmap, blob.CoreObject));
}
