/// <summary>
///
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
/// <remarks>
/// Credits to enohka for this code.
/// See more at: http://github.com/enohka/moddingSuite
/// </remarks>
public virtual TgvImage Read(String filePath)
{
var file = new TgvImage();
byte[] rawDDSData = File.ReadAllBytes(filePath);
using (var ms = new MemoryStream(rawDDSData))
{
var buffer = new byte[4];
ms.Read(buffer, 0, buffer.Length);
if (BitConverter.ToUInt32(buffer, 0) != DDSFormat.MagicHeader)
{
throw new ArgumentException("Wrong DDS magic");
}
buffer = new byte[Marshal.SizeOf(typeof(DDSFormat.Header))];
ms.Read(buffer, 0, buffer.Length);
var header = MiscUtilities.ByteArrayToStructure <DDSFormat.Header>(buffer);
header.MipMapCount = 1;
DDSHelper.ConversionFlags conversionFlags;
var format = DDSHelper.GetDXGIFormat(ref header.PixelFormat, out conversionFlags);
//read only the main content mipmap
uint minMipByteLength = DDSMipMapUilities.GetMinimumMipMapSizeForFormat(header.PixelFormat);
uint mipByteLength = (uint)DDSMipMapUilities.GetMipMapBytesCount((int)header.Width, (int)header.Height, format);
mipByteLength = Math.Max(minMipByteLength, mipByteLength);
buffer = new byte[mipByteLength];
ms.Read(buffer, 0, buffer.Length);
var mip = new TgvMipMap();
mip.Content = buffer;
mip.Length = mipByteLength;
mip.MipSize = header.Width * header.Height;
mip.MipWidth = header.Width;
mip.MipHeight = header.Height;
file.MipMapCount = (ushort)header.MipMapCount;
file.MipMaps.Add(mip);
file.Height = header.Height;
file.ImageHeight = header.Height;
file.Width = header.Width;
file.ImageWidth = header.Width;
file.Format = format;
file.PixelFormatString = TgvUtilities.GetTgvFromPixelFormat(format);
}
return(file);
}
/// <summary>
///
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
/// <remarks>
/// Credits to enohka for this code.
/// See more at: http://github.com/enohka/moddingSuite
/// </remarks>
public virtual byte[] Write(TgvImage file)
{
using (MemoryStream stream = new MemoryStream())
{
file.PixelFormatString = TgvUtilities.GetTgvFromPixelFormat(file.Format); //"DXT5_SRGB"
var buffer = BitConverter.GetBytes(VersionMagic);
stream.Write(buffer, 0, buffer.Length);
buffer = BitConverter.GetBytes(file.IsCompressed ? 1 : 0);
stream.Write(buffer, 0, buffer.Length);
buffer = BitConverter.GetBytes(file.Width);
stream.Write(buffer, 0, buffer.Length);
buffer = BitConverter.GetBytes(file.Height);
stream.Write(buffer, 0, buffer.Length);
buffer = BitConverter.GetBytes(file.Width);
stream.Write(buffer, 0, buffer.Length);
buffer = BitConverter.GetBytes(file.Height);
stream.Write(buffer, 0, buffer.Length);
buffer = BitConverter.GetBytes((short)file.MipMapCount);
stream.Write(buffer, 0, buffer.Length);
var fmtLen = (short)file.PixelFormatString.Length;
buffer = BitConverter.GetBytes(fmtLen);
stream.Write(buffer, 0, buffer.Length);
buffer = Encoding.ASCII.GetBytes(file.PixelFormatString);
stream.Write(buffer, 0, buffer.Length);
stream.Seek(MathUtilities.RoundToNextDivBy4(fmtLen) - fmtLen, SeekOrigin.Current);
stream.Write(file.SourceChecksum, 0, file.SourceChecksum.Length);
var mipOffset = (uint)(stream.Position);
stream.Seek(8 * file.MipMapCount, SeekOrigin.Current);
var sortedMipMaps = file.MipMaps.OrderBy(x => x.MipSize).ToList();
// Create the content and write all MipMaps,
// since we compress on this part its the first part where we know the size of a MipMap
foreach (var sortedMipMap in sortedMipMaps)
{
sortedMipMap.Offset = (uint)stream.Position;
if (file.IsCompressed)
{
var zipoMagic = Encoding.ASCII.GetBytes("ZIPO");
stream.Write(zipoMagic, 0, zipoMagic.Length);
//buffer = BitConverter.GetBytes(mipImgsizes[sortedMipMaps.IndexOf(sortedMipMap)]);
//To Ÿle dzia³a. W orygianlnym pliku bajty s¹ w innej kolejnoœci. Pozatym to zak³ada ze potêg¹ jest indeks,
//a w przypadku ma³ej liczby bitmap to nie ma sensu
uint mipSize = sortedMipMap.MipSize; //GetMipMapSize(file.Width, file.Height, sortedMipMaps.IndexOf(sortedMipMap), sortedMipMaps.Count);
buffer = BitConverter.GetBytes(mipSize);
stream.Write(buffer, 0, buffer.Length);
ICompressor comp = new ZlibCompressor();
buffer = comp.Compress(sortedMipMap.Content);
stream.Write(buffer, 0, buffer.Length);
sortedMipMap.Length = (uint)buffer.Length;
}
else
{
stream.Write(sortedMipMap.Content, 0, sortedMipMap.Content.Length);
sortedMipMap.Length = (uint)sortedMipMap.Content.Length;
}
//Wygl¹da na to ¿e mipMapy musza mieæ offset wzglêden pocz¹tku pliku podzielny przez 4.
//Trzeba dope³niæ do liczby podzielnej przez 4 przed zapisem nastêpnego
//To dope³nienie zak³ada ¿e nag³ówek ma d³ugoœæ podzielna przez 4, tak ¿e pierwsza MipMapa nie jest przesuniêta.
//Plik Edata wie o tym poszerzeniu rozmiaru, bo odczytuje d³ugoœæ pliku z rozmiaru contentu.
bool multiMipMaps = file.MipMaps.Count > 1;
bool needSupplementTo4 = (stream.Position % 4) != 0;
if (multiMipMaps && needSupplementTo4)
{
int supplementSize = (int)(MathUtilities.RoundToNextDivBy4(stream.Position) - stream.Position);
byte[] supplementBuffer = new byte[supplementSize];
stream.Write(supplementBuffer, 0, supplementBuffer.Length);
}
}
stream.Seek(mipOffset, SeekOrigin.Begin);
// Write the offset collection in the header.
for (int i = 0; i < file.MipMapCount; i++)
{
buffer = BitConverter.GetBytes(sortedMipMaps[i].Offset);
stream.Write(buffer, 0, buffer.Length);
}
// Write the size collection into the header.
for (int i = 0; i < file.MipMapCount; i++)
{
buffer = BitConverter.GetBytes(sortedMipMaps[i].Length + 8); //+ 4 magii i + 4 rozmiaru mapy
stream.Write(buffer, 0, buffer.Length);
}
return(stream.ToArray());
}
}
public virtual TgvImage Read(String filePath)
{
var file = new TgvImage();
byte[] rawDDSData = File.ReadAllBytes(filePath);
using (var ms = new MemoryStream(rawDDSData))
{
var buffer = new byte[4];
ms.Read(buffer, 0, buffer.Length);
if (BitConverter.ToUInt32(buffer, 0) != DDSFormat.MagicHeader)
{
throw new ArgumentException("Wrong DDS magic");
}
buffer = new byte[Marshal.SizeOf(typeof(DDSFormat.Header))];
ms.Read(buffer, 0, buffer.Length);
var header = MiscUtilities.ByteArrayToStructure <DDSFormat.Header>(buffer);
DDSHelper.ConversionFlags conversionFlags;
var format = DDSHelper.GetDXGIFormat(ref header.PixelFormat, out conversionFlags);
if (header.MipMapCount == 0)
{
header.MipMapCount = 1;
}
for (int i = 0; i < header.MipMapCount; i++)
{
uint mipScale = (uint)Math.Max(1, 2 << (i - 1));
uint mipWidth = Math.Max(1, header.Width / mipScale);
uint mipHeight = Math.Max(1, header.Height / mipScale);
if (mipWidth < MinMipMapWidth || mipHeight < MinMipMapHeight)
{
break;
}
uint minMipByteLength = DDSMipMapUilities.GetMinimumMipMapSizeForFormat(header.PixelFormat);
uint mipByteLength = (uint)DDSMipMapUilities.GetMipMapBytesCount((int)mipWidth, (int)mipHeight, format);
mipByteLength = Math.Max(minMipByteLength, mipByteLength);
buffer = new byte[mipByteLength];
ms.Read(buffer, 0, buffer.Length);
var mip = new TgvMipMap();
mip.Content = buffer;
mip.Length = mipByteLength;
mip.MipSize = mipWidth * mipHeight;//(int)mipSize; //spr. czy to jest równe size czy width * height;
mip.MipWidth = mipWidth;
mip.MipHeight = mipHeight;
file.MipMaps.Add(mip);
}
file.Height = header.Height;
file.ImageHeight = header.Height;
file.Width = header.Width;
file.ImageWidth = header.Width;
file.MipMapCount = (ushort)file.MipMaps.Count;
file.Format = format;
file.PixelFormatString = TgvUtilities.GetTgvFromPixelFormat(format);
}
return(file);
}