[PATCH v3 0/4] ipa: Move Pwl from Raspberry Pi to libipa

[Paul Elder]

This patch series moves the piecewise linear function class from
the Rasberry Pi IPA to libipa so that all IPAs can use it.

First an addition to the geometry header is needed, to add a
floating-point version of the Point class, then the pwl is copied over,
and the Raspberry Pi IPA is converted to use the libipa Pwl class.

The main changes in v2 are s/FPoint/PointF/g and improving the
documentation.

v3 has almost no change...

Paul Elder (4):
  libcamera: geometry: Add floating-point version of Point class
  ipa: libipa: Copy pwl from rpi
  ipa: libipa: pwl: Clean up Pwl class to match libcamera
  ipa: rpi: controller: Use libipa's Pwl class

 include/libcamera/geometry.h               |  65 ++++
 src/ipa/libipa/meson.build                 |   2 +
 src/ipa/libipa/pwl.cpp                     | 371 +++++++++++++++++++++
 src/ipa/libipa/pwl.h                       |  98 ++++++
 src/ipa/rpi/controller/cac_status.h        |   2 -
 src/ipa/rpi/controller/contrast_status.h   |   4 +-
 src/ipa/rpi/controller/meson.build         |   2 +-
 src/ipa/rpi/controller/rpi/af.cpp          |   4 +-
 src/ipa/rpi/controller/rpi/af.h            |   5 +-
 src/ipa/rpi/controller/rpi/agc_channel.cpp |   8 +-
 src/ipa/rpi/controller/rpi/agc_channel.h   |   7 +-
 src/ipa/rpi/controller/rpi/awb.cpp         |  40 +--
 src/ipa/rpi/controller/rpi/awb.h           |  23 +-
 src/ipa/rpi/controller/rpi/ccm.cpp         |   4 +-
 src/ipa/rpi/controller/rpi/ccm.h           |   5 +-
 src/ipa/rpi/controller/rpi/contrast.cpp    |  14 +-
 src/ipa/rpi/controller/rpi/contrast.h      |   5 +-
 src/ipa/rpi/controller/rpi/geq.cpp         |   5 +-
 src/ipa/rpi/controller/rpi/geq.h           |   4 +-
 src/ipa/rpi/controller/rpi/hdr.cpp         |   8 +-
 src/ipa/rpi/controller/rpi/hdr.h           |   9 +-
 src/ipa/rpi/controller/rpi/tonemap.cpp     |   2 +-
 src/ipa/rpi/controller/rpi/tonemap.h       |   5 +-
 src/ipa/rpi/controller/tonemap_status.h    |   4 +-
 src/libcamera/geometry.cpp                 | 123 ++++++-
 test/geometry.cpp                          | 355 ++++++++++++++++++++
 26 files changed, 1097 insertions(+), 77 deletions(-)
 create mode 100644 src/ipa/libipa/pwl.cpp
 create mode 100644 src/ipa/libipa/pwl.h

-- 
2.39.2