/// <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);
}
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);
}
