public static byte[] GenerateBFF2(byte[] palette, byte[] data, CGeneric.Compression compressionMethod, int sizeX, int sizeY, string bffName)
{
//generate header
//--> determine GreenAlpha and palette size
byte greenAlphaIndex = 0;
if (palette.Length > 0)
{
greenAlphaIndex = CTextureManager.GetGreenAlphaValueIndex(palette, compressionMethod);
}
//make almost random compressed value.. (10)(because not enought information about it)
//set displayedWidth equal pixel width (because not enought information about it)
byte[] sizeXB = CGeneric.ConvertIntToByteArray16bits(sizeX);
byte[] sizeYB = CGeneric.ConvertIntToByteArray16bits(sizeY);
byte[] name = CGeneric.ConvertStringToByteArray(bffName);
byte[] nbColors = new byte[0];
if (palette.Length > 0)
{
nbColors = CGeneric.ConvertIntToByteArray(palette.Length / CTextureManager.GetBytePerPixel(compressionMethod));
}
byte[] bff2header = SetHeader(compressionMethod, greenAlphaIndex, 0xE, sizeXB, sizeXB, sizeYB, name, nbColors);
//concatenate header, palette and compressed data
byte[] finalData = new byte[bff2header.Length + palette.Length + data.Length];
Array.Copy(bff2header, 0, finalData, 0, bff2header.Length);
if (palette.Length > 0)
{
Array.Copy(palette, 0, finalData, bff2header.Length, palette.Length);
}
Array.Copy(data, 0, finalData, bff2header.Length + palette.Length, data.Length);
return(finalData);
}
public void Init()
{
//init header...
// take 2 byte : for the fist byte keep only 4 last bit and for the second keep only the 4 first..
byte b1 = rawData[17];
byte b2 = rawData[18];
b1 %= 16;
b1 <<= 4;
b2 /= 16;
b1 += b2;
headerBFF2.transparencyPixelIndex = b1;
headerBFF2.displayLength = rawData[8];
// check if the data is compressed and if data had indexed color
headerBFF2.isCompressedTexture = (rawData[18] % 16 > 7) ? true : false;
//copy basic informations..
headerBFF2.textureType = rawData[19];
headerBFF2.nameLength = rawData[35];
headerBFF2.isIndexedColor = (headerBFF2.textureType == 0x32 || headerBFF2.textureType == 0x33) ? true : false;
headerBFF2.textureWidth = new byte[2];
headerBFF2.textureHeight = new byte[2];
headerBFF2.name = new byte[headerBFF2.nameLength];
headerBFF2.bytePerPixel = (byte)CTextureManager.GetBytePerPixel((CGeneric.Compression)headerBFF2.textureType);
Array.Copy(rawData, 22, headerBFF2.textureWidth, 0, 2);
Array.Copy(rawData, 26, headerBFF2.textureHeight, 0, 2);
Array.Copy(rawData, 36, headerBFF2.name, 0, headerBFF2.nameLength);
//remove last not necessary character
if (headerBFF2.name[headerBFF2.nameLength - 1] == 0)
{
headerBFF2.name = new byte[headerBFF2.nameLength - 1];
Array.Copy(rawData, 36, headerBFF2.name, 0, headerBFF2.nameLength - 1);
}
headerBFF2.sizeX = CGeneric.ConvertByteArrayToInt(headerBFF2.textureWidth);
headerBFF2.sizeY = CGeneric.ConvertByteArrayToInt(headerBFF2.textureHeight);
//extract palette
int startingData = 0x24 + headerBFF2.nameLength;
if (headerBFF2.isIndexedColor)
{
ExtractPalette(startingData);
startingData += headerBFF2.palette.Length + headerBFF2.paletteSize.Length;
}
headerBFF2.dataCompressed = new Byte[rawData.Length - startingData];
Array.Copy(rawData, startingData, headerBFF2.dataCompressed, 0, headerBFF2.dataCompressed.Length);
}
public Bitmap ShowTexture()
{
byte[] tmpArray = null;
switch (bytePerPixel)
{
case 32:
tmpArray = rawData;
break;
case 16:
tmpArray = CTextureManager.ConvertByteArrayToRGBA(rawData, CGeneric.Compression.trueColor16Bits);
break;
case 8:
tmpArray = CTextureManager.ConvertByteArrayToRGBA(rawData, CGeneric.Compression.max256Colors, palette, true);
break;
}
return(CTextureManager.ConvertRGBAByteArrayToBitmap(tmpArray, sizeX, sizeY));
}
public void DecompressTexture()
{
Byte[] compressedTex;
compressedTex = new Byte[rawData.Length - 35 + headerBFF2.nameLength];
Byte[] decompressedTex;
//if texture is compressed, decompress it.
if (headerBFF2.isCompressedTexture)
{
decompressedTex = CTextureDecompress.DecompressTexture(headerBFF2);
}
else
{
decompressedTex = headerBFF2.dataCompressed;
}
//convert all textures to 32 bit RGBA for display to user.
decompressedTex = CTextureManager.ConvertByteArrayToRGBA(decompressedTex, (CGeneric.Compression)headerBFF2.textureType, headerBFF2.palette);
headerBFF2.dataUncompressed = decompressedTex;
}
public static CGeneric.Compression TestBestCompression(Bitmap bmp)
{
if (CTextureManager.IsGreyscaleTexture(bmp))
{
return(CGeneric.Compression.greyscale);
}
else if (!CTextureManager.IsMoreColorThanExpected(bmp, 16))
{
return(CGeneric.Compression.max16Colors);
}
else if (!CTextureManager.IsMoreColorThanExpected(bmp, 256))
{
return(CGeneric.Compression.max256Colors);
}
else if (!CTextureManager.IsAlphaVariation(bmp))
{
return(CGeneric.Compression.trueColor16Bits);
}
else
{
return(CGeneric.Compression.trueColor32Bits);
}
}
public Bitmap GetBmpTexture()
{
return(CTextureManager.ConvertRGBAByteArrayToBitmap(headerBFF2.dataUncompressed, headerBFF2.sizeX, headerBFF2.sizeY));
}