public void VerifyParametersSetData <T>(int mipLevel, T[] source, int sourceStartIndex = 0) where T : struct
{
VerifyNotDisposed();
int num = Utilities.SizeOf <T>();
int size = ColorFormat.GetSize();
int num2 = MathUtils.Max(Width >> mipLevel, 1);
int num3 = MathUtils.Max(Height >> mipLevel, 1);
int num4 = size * num2 * num3;
if (source == null)
{
throw new ArgumentNullException("source");
}
if (mipLevel < 0 || mipLevel >= MipLevelsCount)
{
throw new ArgumentOutOfRangeException("mipLevel");
}
if (num > size)
{
throw new ArgumentNullException("Source array element size is larger than pixel size.");
}
if (size % num != 0)
{
throw new ArgumentNullException("Pixel size is not an integer multiple of source array element size.");
}
if (sourceStartIndex < 0 || (source.Length - sourceStartIndex) * num < num4)
{
throw new InvalidOperationException("Not enough data in source array.");
}
}
public override int GetGpuMemoryUsage()
{
int num = 0;
for (int i = 0; i < MipLevelsCount; i++)
{
int num2 = MathUtils.Max(Width >> i, 1);
int num3 = MathUtils.Max(Height >> i, 1);
num += ColorFormat.GetSize() * num2 * num3;
}
return(num);
}