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authorJacopo Mondi <jacopo.mondi@ideasonboard.com>2023-10-19 16:01:26 +0200
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2023-10-23 16:05:58 +0300
commit250577878bff825516ea5a942aea1b3339acb15c (patch)
treed2a4c4816daecb26bf35a3f88dc078066d0e799d /src
parent568569b0815aab15096fd87d8cc4d79155cb8e93 (diff)
libcamera: transform: Add functions to convert Orientation
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>
Diffstat (limited to 'src')
-rw-r--r--src/libcamera/transform.cpp60
1 files changed, 60 insertions, 0 deletions
diff --git a/src/libcamera/transform.cpp b/src/libcamera/transform.cpp
index 4668303d..c3059401 100644
--- a/src/libcamera/transform.cpp
+++ b/src/libcamera/transform.cpp
@@ -7,6 +7,8 @@
#include <libcamera/transform.h>
+#include <libcamera/orientation.h>
+
/**
* \file transform.h
* \brief Enum to represent and manipulate 2D plane transforms
@@ -300,6 +302,64 @@ Transform transformFromRotation(int angle, bool *success)
}
/**
+ * \brief Return the transform representing \a orientation
+ * \param[in] orientation The orientation to convert
+ * \return The transform corresponding to \a orientation
+ */
+Transform transformFromOrientation(const Orientation &orientation)
+{
+ switch (orientation) {
+ case Orientation::Rotate0:
+ return Transform::Identity;
+ case Orientation::Rotate0Mirror:
+ return Transform::HFlip;
+ case Orientation::Rotate180:
+ return Transform::Rot180;
+ case Orientation::Rotate180Mirror:
+ return Transform::VFlip;
+ case Orientation::Rotate90Mirror:
+ return Transform::Transpose;
+ case Orientation::Rotate90:
+ return Transform::Rot90;
+ case Orientation::Rotate270Mirror:
+ return Transform::Rot180Transpose;
+ case Orientation::Rotate270:
+ return Transform::Rot270;
+ }
+
+ return Transform::Identity;
+}
+
+/**
+ * \brief Return the Orientation representing \a transform
+ * \param[in] transform The transform to convert
+ * \return The Orientation corresponding to \a transform
+ */
+Orientation transformToOrientation(const Transform &transform)
+{
+ switch (transform) {
+ case Transform::Identity:
+ return Orientation::Rotate0;
+ case Transform::HFlip:
+ return Orientation::Rotate0Mirror;
+ case Transform::VFlip:
+ return Orientation::Rotate180Mirror;
+ case Transform::Rot180:
+ return Orientation::Rotate180;
+ case Transform::Transpose:
+ return Orientation::Rotate90Mirror;
+ case Transform::Rot270:
+ return Orientation::Rotate270;
+ case Transform::Rot90:
+ return Orientation::Rotate90;
+ case Transform::Rot180Transpose:
+ return Orientation::Rotate270Mirror;
+ }
+
+ return Orientation::Rotate0;
+}
+
+/**
* \brief Return a character string describing the transform
* \param[in] t The transform to be described.
*/