public override void ImportFile(int index, string inPath)
{
if (index < 0 || index >= _TextureCount)
{
return;
}
DDSTextureHeader textureHeader = new DDSTextureHeader();
bool isTextureValid = false;
try
{
FileStream iStreamIn = new FileStream(inPath, FileMode.Open, FileAccess.Read);
BinaryReader iReaderIn = new BinaryReader(iStreamIn);
textureHeader.ReadFromStream(iReaderIn);
isTextureValid = textureHeader.Validate();
iReaderIn.Close();
iStreamIn.Close();
}
catch (Exception) { }
if (!isTextureValid)
{
return;
}
_TextureDefinitions[index].NewTexturePath = inPath;
}
protected MemoryStream GetDXTCDataAsStream(int index)
{
int streamLength = (int)(_TextureDefinitions[index].Length + 128); // size of DXTC header
MemoryStream mStream = new MemoryStream(streamLength);
BinaryWriter mWriter = new BinaryWriter(mStream);
DDSTextureHeader textureHeader = new DDSTextureHeader();
textureHeader.FromTextureDef(ref _TextureDefinitions[index]);
textureHeader.WriteToSteam(mWriter);
//byte[] dxtcZero = new byte[] { 0x00, 0x00, 0x00, 0x00 };
//byte[] dxtcMagic = new byte[] { 0x44, 0x44, 0x53, 0x20 };
//byte[] dxtcSize = new byte[] { 0x7C, 0x00, 0x00, 0x00 }; // is always 124
//mWriter.Write(dxtcMagic);
//mWriter.Write(dxtcSize);
//byte[] dxtcFlags = new byte[] { 0x07, 0x10, 0x0A, 0x00 }; // ???
//mWriter.Write(dxtcFlags);
////mWriter.Write(_TextureDefinitions[index].Flags1);
////byte[] dxtcFlags1a = new byte[] { 0x0A, 0x00 };
////mWriter.Write(dxtcFlags1a);
//uint width = (uint)_TextureDefinitions[index].Width;
//uint height = (uint)_TextureDefinitions[index].Height;
//mWriter.Write(width);
//mWriter.Write(height);
//// uint linearsize
//int blockSize = 16;
//switch (_TextureDefinitions[index].Format)
//{
// case VRMFormat.DXTC1:
// blockSize = 8;
// break;
//}
//uint linearSize = (uint)((width / 4) * (height / 4) * blockSize);
//mWriter.Write(linearSize);
//// uint depth
//mWriter.Write(dxtcZero);
//// uint mipmapcount
//mWriter.Write(_TextureDefinitions[index].Flags2);
//// 11 uints of zero
//for (int i = 0; i < 11; i++)
//{
// mWriter.Write(dxtcZero);
//}
//byte[] dxtcSize2 = new byte[] { 0x20, 0x00, 0x00, 0x00 }; // is always 32
//byte[] dxtcFlags2 = new byte[] { 0x04, 0x00, 0x00, 0x00 }; // ???
//mWriter.Write(dxtcSize2);
//mWriter.Write(dxtcFlags2);
//byte[] dxtcFourCC = new byte[0];
//switch (_TextureDefinitions[index].Format)
//{
// case VRMFormat.DXTC1:
// dxtcFourCC = new byte[] { 0x44, 0x58, 0x54, 0x31 };
// break;
// case VRMFormat.DXTC5:
// dxtcFourCC = new byte[] { 0x44, 0x58, 0x54, 0x35 }; // 0x33 as last digit = DXT3
// break;
//}
//mWriter.Write(dxtcFourCC);
//byte[] dxtcBPP = new byte[] { 0x00, 0x00, 0x00, 0x00 }; // always zero?
//byte[] dxtcMaskRed = new byte[] { 0x00, 0x00, 0x00, 0x00 }; // always zero?
//byte[] dxtcMaskGreen = new byte[] { 0x00, 0x00, 0x00, 0x00 }; // always zero?
//byte[] dxtcMaskBlue = new byte[] { 0x00, 0x00, 0x00, 0x00 }; // always zero?
//byte[] dxtcMaskAlpha = new byte[] { 0x00, 0x00, 0x00, 0x00 }; // always zero?
//mWriter.Write(dxtcBPP);
//mWriter.Write(dxtcMaskRed);
//mWriter.Write(dxtcMaskGreen);
//mWriter.Write(dxtcMaskBlue);
//mWriter.Write(dxtcMaskAlpha);
//byte[] dxtcCaps1 = new byte[] { 0x08, 0x10, 0x40, 0x00 };
//byte[] dxtcCaps2 = new byte[] { 0x00, 0x00, 0x00, 0x00 };
//byte[] dxtcCaps3 = new byte[] { 0x00, 0x00, 0x00, 0x00 };
//byte[] dxtcCaps4 = new byte[] { 0x00, 0x00, 0x00, 0x00 };
//byte[] dxtcTextureStage = new byte[] { 0x00, 0x00, 0x00, 0x00 };
//mWriter.Write(dxtcCaps1);
//mWriter.Write(dxtcCaps2);
//mWriter.Write(dxtcCaps3);
//mWriter.Write(dxtcCaps4);
//mWriter.Write(dxtcTextureStage);
// get the actual texture data
try
{
FileStream iStream = new FileStream(_FilePath, FileMode.Open, FileAccess.Read);
BinaryReader iReader = new BinaryReader(iStream);
iStream.Seek(_TextureDefinitions[index].Offset + 16, SeekOrigin.Begin);
int length = (int)(_TextureDefinitions[index].Length - 16);
for (int byteNum = 0; byteNum < length; byteNum++)
{
mWriter.Write(iReader.ReadByte());
}
iReader.Close();
iStream.Close();
}
catch (Exception ex)
{
throw new TextureFileException("Error reading texture data from file.", ex);
}
mStream.Seek(0, SeekOrigin.Begin);
return(mStream);
}
public bool Validate()
{
// bool isPowerOfTwo = (x != 0) && ((x & (x - 1)) == 0);
if ((dxtcWidth < 0) || ((dxtcWidth & (dxtcWidth - 1)) != 0) ||
(dxtcHeight < 0) || ((dxtcHeight & (dxtcHeight - 1)) != 0))
{
return(false);
}
VRMFormat format = VRMFormat.Uncompressed;
switch (dxtcFourCC.b3)
{
case 0x31:
format = VRMFormat.DXTC1;
break;
case 0x35:
format = VRMFormat.DXTC5;
break;
default:
return(false);
}
DDSTextureHeader ddsHeader = new DDSTextureHeader();
ddsHeader.Initialise(
dxtcWidth,
dxtcHeight,
format,
dxtcMipMapCount
);
bool isValid = true;
isValid &= (dxtcMagic.u == ddsHeader.dxtcMagic.u);
isValid &= (dxtcSize.u == ddsHeader.dxtcSize.u);
// My edited glyph texture has no linear size, but apparantly we can just calculate it.
// Safe to ignore in validate function?
// isValid &= (dxtcFlags.u == ddsHeader.dxtcFlags.u);
isValid &= (dxtcWidth == ddsHeader.dxtcWidth);
isValid &= (dxtcHeight == ddsHeader.dxtcHeight);
// isValid &= (dxtcLinearSize == ddsHeader.dxtcLinearSize);
isValid &= (dxtcDepth == ddsHeader.dxtcDepth);
isValid &= (dxtcMipMapCount == ddsHeader.dxtcMipMapCount);
isValid &= (dxtcSize2.u == ddsHeader.dxtcSize2.u);
isValid &= (dxtcFlags2.u == ddsHeader.dxtcFlags2.u);
isValid &= (dxtcFourCC.u == ddsHeader.dxtcFourCC.u);
isValid &= (dxtcBPP.u == ddsHeader.dxtcBPP.u);
isValid &= (dxtcMaskRed.u == ddsHeader.dxtcMaskRed.u);
isValid &= (dxtcMaskGreen.u == ddsHeader.dxtcMaskGreen.u);
isValid &= (dxtcMaskBlue.u == ddsHeader.dxtcMaskBlue.u);
isValid &= (dxtcMaskAlpha.u == ddsHeader.dxtcMaskAlpha.u);
isValid &= (dxtcCaps1.u == ddsHeader.dxtcCaps1.u);
isValid &= (dxtcCaps2.u == ddsHeader.dxtcCaps2.u);
isValid &= (dxtcCaps3.u == ddsHeader.dxtcCaps3.u);
isValid &= (dxtcCaps4.u == ddsHeader.dxtcCaps4.u);
isValid &= (dxtcTextureStage.u == ddsHeader.dxtcTextureStage.u);
if (isValid)
{
return(true);
}
return(false);
}
