public static int Pow2RoundDown(int x)
{
if (x < 0)
{
ExceptionUtil.ThrowArgumentOutOfRangeException("x", "must be non-negative");
}
return((int)UInt32Util.Pow2RoundDown((uint)x));
}
public static int Pow2RoundUp(int x)
{
if ((x < 0) || (x > 0x40000000))
{
ExceptionUtil.ThrowArgumentOutOfRangeException("x", "must be in the range [1, 2^30]");
}
return((int)UInt32Util.Pow2RoundUp((uint)x));
}
public static bool IsClamped(double value, double min, double max)
{
if (min > max)
{
ExceptionUtil.ThrowArgumentOutOfRangeException("min", "min must be less than or equal to max");
}
return((value >= min) && (value <= max));
}
public static unsafe int Log2(byte x)
{
if (x == 0)
{
ExceptionUtil.ThrowArgumentOutOfRangeException("x", "must be 1 or greater");
}
return(pHighestBitLookup[x]);
}
public static int Log2RoundUp(uint x)
{
if ((x == 0) || (x > 0x80000000))
{
ExceptionUtil.ThrowArgumentOutOfRangeException("x must be in the range [1, 2^31]");
}
return(Log2((x - 1) + x));
}
public static int Log2(uint x)
{
if (x == 0)
{
ExceptionUtil.ThrowArgumentOutOfRangeException("x", "must be 1 or greater");
}
return(HighestBit(x));
}
public static int Log2(int x)
{
if (x <= 0)
{
ExceptionUtil.ThrowArgumentOutOfRangeException("x", "must be positive");
}
if (x == 1)
{
return(0);
}
return(UInt32Util.HighestBit((uint)x));
}
public static uint Pow2RoundUp(uint x)
{
if (x > 0x80000000)
{
ExceptionUtil.ThrowArgumentOutOfRangeException("x", "must be less than or equal to 2^31");
}
if (x == 0)
{
return(1);
}
return(Pow2RoundUpNonZero(x));
}
public static unsafe void CopyElements(void *pDst, void *pSrc, int srcLength, int srcIndex, int elementCount, int elementSize)
{
if ((pDst == null) || (pSrc == null))
{
ExceptionUtil.ThrowArgumentNullException();
}
if (((srcLength < 0) || (srcIndex < 0)) || (((elementCount < 0) || (elementSize < 1)) || ((srcIndex + elementCount) > srcLength)))
{
ExceptionUtil.ThrowArgumentOutOfRangeException();
}
if (elementCount != 0)
{
Buffer.MemoryCopy(pSrc + ((void *)(srcIndex * elementSize)), pDst, (long)(elementCount * elementSize), (long)(elementCount * elementSize));
}
}
private static void IsClampedThrow(long value, long min, long max)
{
ExceptionUtil.ThrowArgumentOutOfRangeException("min", $"min must be less than or equal to max. value={value}, min={min}, max={max}");
}
private static void ClampThrow(int value, int min, int max)
{
ExceptionUtil.ThrowArgumentOutOfRangeException("min", $"min must be less than or equal to max. value={value}, min={min}, max={max}");
}