diff options
Diffstat (limited to 'src/libcamera/transform.cpp')
| -rw-r--r-- | src/libcamera/transform.cpp | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/src/libcamera/transform.cpp b/src/libcamera/transform.cpp index c3059401..9316db00 100644 --- a/src/libcamera/transform.cpp +++ b/src/libcamera/transform.cpp @@ -189,24 +189,24 @@ Input image | | goes to output image | | */ /** - * \brief Compose two transforms together - * \param[in] t1 The second transform - * \param[in] t0 The first transform + * \brief Compose two transforms by applying \a t0 first then \a t1 + * \param[in] t0 The first transform to apply + * \param[in] t1 The second transform to apply * - * Composing transforms follows the usual mathematical convention for - * composing functions. That is, when performing `t1 * t0`, \a t0 is applied - * first, and then \a t1. - * For example, `Transpose * HFlip` performs `HFlip` first and then the - * `Transpose` yielding `Rot270`, as shown below. + * Compose two transforms into a transform that is equivalent to first applying + * \a t0 and then applying \a t1. For example, `HFlip * Transpose` performs + * `HFlip` first and then the `Transpose` yielding `Rot270`, as shown below. ~~~ A-B B-A B-D Input image | | -> HFLip -> | | -> Transpose -> | | = Rot270 C-D D-C A-C ~~~ - * Note that composition is generally non-commutative for Transforms, - * and not the same as XOR-ing the underlying bit representations. + * Note that composition is generally non-commutative for Transforms, and not + * the same as XOR-ing the underlying bit representations. + * + * \return A Transform equivalent to applying \a t0 and then \a t1 */ -Transform operator*(Transform t1, Transform t0) +Transform operator*(Transform t0, Transform t1) { /* * Reorder the operations so that we imagine doing t0's transpose |