We had this nice shortcuts for multiply and inverse with the identity matrix.
Pity we never used it! The EINA_MATRIX_TYPE_IDENTITY is coming from an enum
without and direct assignments to its internals. Being the first item in the
enum it is most likely will be 0 which makes the whole bitwise AND zero and thus
the optimized path will never get called. If our compiler now decides hew wants
to handle enums differently and does not assign the 0 to the first item this
bitwise operation will be even more screwed. What we really want is to check is
if the type we get for the matrix matches EINA_MATRIX_TYPE_IDENTITY. So better
do this. Made me look into matrix multply and inverse. Fun!
Thanks to smatch for poiting this out.
This is a late change that has been discussing on the ML as we don't want to release an API, we can't make faster.
Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>
Oleksandr Shcherbina
se.osadchy
Stefan Schmidt
Carsten Haitzler
Cedric BAIL
Jean-Philippe Andre
Subhransu Mohanty