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path: root/src/libcamera/transform.cpp
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2023-10-23libcamera: transform: Make the transformFromOrientation() function staticLaurent Pinchart
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>
2023-10-23libcamera: transform: Fold transformToOrientation() in its only callerLaurent Pinchart
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>
2023-10-23libcamera: transform: Add operations with OrientationJacopo Mondi
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>
2023-10-23libcamera: transform: Invert operator*() operandsJacopo Mondi
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>
2023-10-23libcamera: transform: Add functions to convert OrientationJacopo Mondi
Add two helper functions to the transform.cpp file that allows to convert to and from an Orientation. 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>
2022-07-27raspberrypi: Update Copyright statement in all Raspberry Pi source filesNaushir Patuck
s/Raspberry Pi (Trading) Limited/Raspberry Pi Ltd/ to reflect the new Raspberry Pi entity name. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-07-06libcamera: transform: Document Transform enumerators as suchLaurent Pinchart
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>
2020-09-29libcamera: Add Transform enum to represent 2D plane transforms.David Plowman
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>