inline halfxb
So we know which is the first pixel by masking.
inline xl
inline xb a bit
inline yl
inline uv1.x shift
remove likely wrong guessed ternary operator
add pixel layout comment
inline xel
optimize the shifts a bit
inline xb
optimize shifts in a second step
extract xb
rename all variables
calculate cache line by position.x
Revert 5115b459f40d53044cd7a858f52e6e876e1211b4 "optimize the shifts a bit"
It seems I was wrong, the other way is the more natural.
use x_virtual_position instead of uv1.x for x_offset_in_block
This looks more natural and the offset should be masked anyway.
substitude factor with cache_lines
move 32bit logic in a conditional block