[PATCH v2 0/3] Add Face Detection Controls

[Harvey Yang]

Hi folks,

This series of patches adds face detection controls in the control ids,
the corresponding usages, and a c'tor of libcamera::Rectangle to
construct it easiler with face detection results.

It passed gitlab pipeline checks:
https://gitlab.freedesktop.org/chenghaoyang/libcamera/-/pipelines/1256394

This is one of the series cherry-picked from cros mtkisp7 branch.

The corresponding CLs in cros are:
https://chromium-review.googlesource.com/c/chromiumos/third_party/libcamera/+/4741266
https://chromium-review.googlesource.com/c/chromiumos/third_party/libcamera/+/4741267
https://chromium-review.googlesource.com/c/chromiumos/third_party/libcamera/+/5669229
https://chromium-review.googlesource.com/c/chromiumos/third_party/libcamera/+/5669232

The usages in pipeline handler mtkisp7 will be added later.

The checkstyle's suggestion on the second patch is ignored, as it
changes the style of previous code.

v2:
- Squashed the fourth CL into the last patch, as it's a fix.
- Fixed CLs based on checkstyle's suggestions.


BR,
Harvey

Yudhistira Erlandinata (3):
  libcamera: Add rectangle two-point constructor
  libcamera: Add face detection controls
  libcamera: android: Add face detection control support

 include/libcamera/controls.h        |  6 +++
 include/libcamera/geometry.h        | 10 +++++
 src/android/camera_capabilities.cpp | 41 ++++++++++++++++--
 src/android/camera_device.cpp       | 64 +++++++++++++++++++++++++++--
 src/libcamera/control_ids_core.yaml | 42 +++++++++++++++++++
 src/libcamera/controls.cpp          |  6 +++
 src/libcamera/geometry.cpp          | 11 ++++-
 7 files changed, 171 insertions(+), 9 deletions(-)

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2.46.0.295.g3b9ea8a38a-goog