Now that the transformFromOrientation() function isn't used outside of
transform.cpp, make it static to remove it from the public API.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
The transformToOrientation() function is called from
Orientation operator*(const Orientation &o, const Transform &t);
only. Fold the code in the caller and drop the transformToOrientation()
function to drop what can be considered as an ill-defined operation from
the API.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Add two operations that allows to combine Transform with Orientation.
- Transform operator/(const Orientation &o1, const Orientation &o2)
allows to easily get back the Transform that needs to be applied to
Orientation2 to get Orientation1
- Orientation operator*(const Orientation &o, const Transform &t)
allows to apply a Transform to an Orientation and obtain the
combination of the two
These two operations allow applications to use Transforms to
manipulate the Orientation inside the CameraConfiguration, if they
wish.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The current definition of operator*(Transform t1, Transform t0) follows
the function composition notion, where t0 is applied first then t1 is
applied last.
In order to introduce operator*(Orientation, Transform) where a
Transform is applied on top of an Orientation, invert the operand order
of operator*(Transform, Transform) so that usage of operator* with both
Orientation and Transform can be made associative.
For example:
Orientation o;
Transform t = t1 * t2
Orientation o1 = o * t
= o * (t1 * t2) = (o * t1) * t2 = o * t1 * t2
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Due to a bug in Doxygen that didn't properly handle enum class
enumerators when defined in a namespace, the Transform enumerators were
documented with free-formed text.
The issue has been fixed in Doxygen commit 309b397be106 ("issue #8281:
Out-of-line documentation of scoped enums in the same namespace"). We
can now fix the documentation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
We implement 2D transforms as an enum class with 8 elements,
consisting of the usual 2D plane transformations (flips, rotations
etc.).
The transform is made up of 3 bits, indicating whether the transform
includes: a transpose, a horizontal flip (mirror) and a vertical flip.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
