public static BitMap FromCells(BitSize cellwidth, int cellcount)
{
var bitcount = cellcount * cellwidth;
var indices = new BitIndex[bitcount];
for (var cell = 0u; cell < cellcount; cell++)
{
for (byte bit = 0; bit < bitcount; bit++)
{
indices[cell * cellwidth + bit] = new BitIndex(cell, bit);
}
}
return(FromIndices(cellcount, cellwidth, indices));
}
public static BitMap FromBits(BitSize cellwidth, BitSize bitcount)
{
var q = Math.DivRem(bitcount, cellwidth, out int r);
var cellcount = r == 0 ? q : q + 1;
var indices = new BitIndex[cellcount * cellwidth];
for (var cell = 0u; cell < cellcount; cell++)
{
for (byte bit = 0; bit < cellwidth; bit++)
{
indices[cell * cellwidth + bit] = new BitIndex(cell, bit);
}
}
return(new BitMap(cellcount, cellwidth, indices));
}
/// <summary>
/// Creates a bitmap over cells of unmanaged parametric type
/// </summary>
/// <param name="bitcount">The number of bits to spread over the cells</param>
/// <typeparam name="T">The cell type</typeparam>
public static BitMap <T> FromBits <T>(BitSize bitcount)
where T : unmanaged
{
var cellwidth = bitsize <T>();
var q = Math.DivRem(bitcount, cellwidth, out int r);
var cellcount = r == 0 ? q : q + 1;
var indices = new BitIndex[bitcount];
for (var cell = 0u; cell < cellcount; cell++)
{
for (byte bit = 0; bit < cellwidth; bit++)
{
indices[cell * cellwidth + bit] = new BitIndex(cell, bit);
}
}
return(new BitMap <T>(FromIndices(cellcount, cellwidth, indices)));
}
/// <summary>
/// Creates a bitmap over a specified number of cells of unmanaged type
/// </summary>
/// <param name="cellcount">The cell count</param>
/// <typeparam name="T">The cell type</typeparam>
public static BitMap <T> FromCells <T>(int cellcount)
where T : unmanaged
{
var cellwidth = bitsize <T>();
var bits = cellcount * cellwidth;
var indices = new BitIndex[bits];
for (var cell = 0u; cell < cellcount; cell++)
{
for (byte bit = 0; bit < bits; bit++)
{
indices[cell * cellwidth + bit] = new BitIndex(cell, bit);
}
}
return(new BitMap <T>(FromIndices(cellcount, cellwidth, indices)));
}
