public static int CalculateImageSize(DdsPixelFormat pixelFormat, int width, int height)
{
if (pixelFormat.RgbBitCount > 0)
return (width*height*pixelFormat.RgbBitCount)/8;
if (pixelFormat.Equals(DdsPfDxt1()))
return ((width*height*32)/8)/8;
if (pixelFormat.Equals(DdsPfDxt3()))
return ((width*height*32)/4)/8;
if (pixelFormat.Equals(DdsPfDxt5()))
return ((width*height*32)/4)/8;
throw new NotImplementedException("Could not calculate the image size of the current pixel format.");
}
public static int GetMinimumImageSize(DdsPixelFormat pixelFormat)
{
if (pixelFormat.Equals(DdsPfDxt1()))
{
return(8);
}
if (pixelFormat.Equals(DdsPfDxt3()))
{
return(16);
}
if (pixelFormat.Equals(DdsPfDxt5()))
{
return(16);
}
return(4);
}
public static int CalculateImageSize(DdsPixelFormat pixelFormat, int width, int height, int depth)
{
if (pixelFormat.RgbBitCount > 0)
{
return((int)((long)width * height * depth * pixelFormat.RgbBitCount / 8));
}
if (pixelFormat.Equals(DdsPfDxt1()))
{
return((int)((long)width * height * depth) / 2); // ((width*height*32)/8)/8;
}
if (pixelFormat.Equals(DdsPfDxt3()))
{
return(width * height * depth); // ((width*height*32)/4)/8;
}
if (pixelFormat.Equals(DdsPfDxt5()))
{
return(width * height * depth); // ((width*height*32)/4)/8;
}
throw new ArgumentException("Could not calculate the image size of the current pixel format.");
}
public static int GetMinimumImageSize(DdsPixelFormat pixelFormat)
{
if (pixelFormat.Equals(DdsPfDxt1()))
return 8;
if (pixelFormat.Equals(DdsPfDxt3()))
return 16;
if (pixelFormat.Equals(DdsPfDxt5()))
return 16;
return 4;
}