// minSize and maxSize xy must be POT (256x256 and 2048x1024 are two valid examples)
public Allocator2D(Vector2Int minSize, Vector2Int maxSize, int rowHeightBias)
{
Debug.Assert(
minSize.x > 0 && minSize.x <= maxSize.x &&
minSize.y > 0 && minSize.y <= maxSize.y);
Debug.Assert(
minSize.x == UIRUtility.GetNextPow2(minSize.x) &&
minSize.y == UIRUtility.GetNextPow2(minSize.y) &&
maxSize.x == UIRUtility.GetNextPow2(maxSize.x) &&
maxSize.y == UIRUtility.GetNextPow2(maxSize.y));
Debug.Assert(rowHeightBias >= 0);
m_MinSize = minSize;
m_MaxSize = maxSize;
m_RowHeightBias = rowHeightBias;
BuildAreas(m_Areas, minSize, maxSize);
m_MaxAllocSize = ComputeMaxAllocSize(m_Areas, rowHeightBias);
m_Rows = BuildRowArray(m_MaxAllocSize.y, rowHeightBias);
}
