public static DirectBitmap ETCTextureToBitmap(Texture2D texture, byte[] data)
{
int width = texture.Width;
int height = texture.Height;
DirectBitmap bitmap = new DirectBitmap(width, height);
try
{
switch (texture.TextureFormat)
{
case TextureFormat.ETC_RGB4:
case TextureFormat.ETC_RGB4_3DS:
case TextureFormat.ETC_RGB4Crunched:
EtcDecoder.DecompressETC(data, width, height, bitmap.Bits);
break;
case TextureFormat.EAC_R:
EtcDecoder.DecompressEACRUnsigned(data, width, height, bitmap.Bits);
break;
case TextureFormat.EAC_R_SIGNED:
EtcDecoder.DecompressEACRSigned(data, width, height, bitmap.Bits);
break;
case TextureFormat.EAC_RG:
EtcDecoder.DecompressEACRGUnsigned(data, width, height, bitmap.Bits);
break;
case TextureFormat.EAC_RG_SIGNED:
EtcDecoder.DecompressEACRGSigned(data, width, height, bitmap.Bits);
break;
case TextureFormat.ETC2_RGB:
EtcDecoder.DecompressETC2(data, width, height, bitmap.Bits);
break;
case TextureFormat.ETC2_RGBA1:
EtcDecoder.DecompressETC2A1(data, width, height, bitmap.Bits);
break;
case TextureFormat.ETC2_RGBA8:
case TextureFormat.ETC_RGBA8_3DS:
case TextureFormat.ETC2_RGBA8Crunched:
EtcDecoder.DecompressETC2A8(data, width, height, bitmap.Bits);
break;
default:
throw new Exception(texture.TextureFormat.ToString());
}
bitmap.FlipY();
return(bitmap);
}
catch
{
bitmap.Dispose();
throw;
}
}
public static void Main(string[] args)
{
if (args.Length < 4)
{
Console.WriteLine("Format: {fileName} {width} {height} {mode}");
Console.WriteLine("mode: 0 - ETC; 1 - ETC2; 2 - ETC2a1; 3 - ETC2a8; 4 - EAC R; 5 - EAC signed R; 6 - EAC RG; 7 - EAC signed RG;");
Console.ReadKey();
return;
}
string path = args[0];
int width = int.Parse(args[1]);
int height = int.Parse(args[2]);
int mode = int.Parse(args[3]);
using (DirectBitmap bitmap = new DirectBitmap(width, height))
{
ConsoleKeyInfo key;
byte[] data = File.ReadAllBytes(path);
EtcDecoder decoder = new EtcDecoder();
Stopwatch stopwatch = new Stopwatch();
do
{
stopwatch.Start();
switch (mode)
{
case 0:
decoder.DecompressETC(data, width, height, bitmap.Bits);
break;
case 1:
decoder.DecompressETC2(data, width, height, bitmap.Bits);
break;
case 2:
decoder.DecompressETC2A1(data, width, height, bitmap.Bits);
break;
case 3:
decoder.DecompressETC2A8(data, width, height, bitmap.Bits);
break;
case 4:
decoder.DecompressEACRUnsigned(data, width, height, bitmap.Bits);
break;
case 5:
decoder.DecompressEACRSigned(data, width, height, bitmap.Bits);
break;
case 6:
decoder.DecompressEACRGUnsigned(data, width, height, bitmap.Bits);
break;
case 7:
decoder.DecompressEACRGSigned(data, width, height, bitmap.Bits);
break;
default:
throw new Exception(mode.ToString());
}
stopwatch.Stop();
Console.WriteLine("Processed " + stopwatch.ElapsedMilliseconds);
stopwatch.Reset();
key = Console.ReadKey();
}while (key.Key == ConsoleKey.Spacebar);
string dirPath = Path.GetDirectoryName(path);
string fileName = Path.GetFileNameWithoutExtension(path);
string outPath = Path.Combine(dirPath, fileName + ".png");
bitmap.Bitmap.Save(outPath, ImageFormat.Png);
}
Console.WriteLine("Finished!");
}
