Extend the new Quantized type infrastructure by providing a
FixedPointQTraits template.
This allows construction of fixed point types with a Quantized storage
that allows easy reading of both the underlying quantized type value and
a floating point representation of that same value.
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
The fixedToFloatingPoint does not support unsigned Q types, and
incorrectly sign-extends all values which have the top most bit set in
the quantized values.
Fix this by ensuring that only signed types perform sign extension, and
simplify the calculation for unsigned types.
Convert the storage of the test cases to signed types to correctly
represent their intended purpose, to prevent test failures.
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Kieran Bingham
Daniel Scally