public static int CalculatePitchOrLinearSize(int width, int height, DDSPixelFormatFourCC format,
out DDSHeaderFlags additionalFlags)
{
if (IsBlockCompressed(format))
{
additionalFlags = DDSHeaderFlags.LinearSize;
return(CalculateLinearSize(width, height, format));
}
additionalFlags = DDSHeaderFlags.Pitch;
return(CalculatePitch(width, format));
}
public DDSTextureImporter(byte[] data)
{
var converter = new EndianBitConverter();
uint magic = converter.ToUInt32(data, 0);
if (magic != DwMagic)
{
converter.InvertEndian = true;
magic = converter.ToUInt32(data, 0);
if (magic != DwMagic)
{
throw new Exception("Invalid DDS Texture.");
}
}
HeaderSize = converter.ToUInt32(data, 4);
Flags = (DDSHeaderFlags)converter.ToUInt32(data, 8);
Height = converter.ToUInt32(data, 12);
Width = converter.ToUInt32(data, 16);
PitchOrLinearSize = converter.ToUInt32(data, 20);
Depth = converter.ToUInt32(data, 24);
MipMapCount = converter.ToUInt32(data, 28);
PixelFormat.Size = converter.ToUInt32(data, 76);
PixelFormat.Flags = (DDSPixelFormatFlags)converter.ToUInt32(data, 80);
converter.InvertEndian = true;
PixelFormat.FourCC = (DDSFormat)converter.ToUInt32(data, 84);
converter.InvertEndian = false;
PixelFormat.RGBBitCount = converter.ToUInt32(data, 88);
PixelFormat.RBitMask = converter.ToUInt32(data, 92);
PixelFormat.GBitMask = converter.ToUInt32(data, 96);
PixelFormat.BBitMask = converter.ToUInt32(data, 100);
PixelFormat.ABitMask = converter.ToUInt32(data, 104);
Caps = converter.ToUInt32(data, 108);
Caps2 = converter.ToUInt32(data, 112);
RawTextureData = new byte[data.Length - 128];
Buffer.BlockCopy(data, 128, RawTextureData, 0, data.Length - 128);
}
