compute
Returns byte offset of pixel from pixel base address.
Asserts in debug build if x or y is outside of bounds. Does not assert if rowBytes is smaller than .getMinRowBytes, even though result may be incorrect.
Return
offset within pixel array
Parameters
x
column index, zero or greater, and less than getWidth()
y
row index, zero or greater, and less than getHeight()
row
size of pixel row or larger