[v2,0/6] Fix stats related problems in software ISP
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Message ID 20250911135144.56586-1-mzamazal@redhat.com
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  • Fix stats related problems in software ISP
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Milan Zamazal Sept. 11, 2025, 1:51 p.m. UTC 
Fixes of https://bugs.libcamera.org/show_bug.cgi?id=280 and the related
problems discussed there.

Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Tested-by: Robert Mader <robert.mader@collabora.com>

Changes in v2:
- An extra semicolon removed.
- A note about the debayering alignment being an implementation
  limitation added.
- A check for division by zero in AGC added.

Milan Zamazal (6):
  libcamera: software_isp: Clarify SwStatsCpu::setWindow use
  libcamera: software_isp: Pass correct y-coordinate to stats
  libcamera: software_isp: Check processed window size alignment
  libcamera: simple: Avoid incorrect arithmetic in AWB
  ipa: simple: blc: Prevent division by zero in BLC
  ipa: simple: agc: Prevent division by zero in AGC

 src/ipa/simple/algorithms/agc.cpp          |  6 +++++
 src/ipa/simple/algorithms/awb.cpp          |  8 ++++---
 src/ipa/simple/algorithms/blc.cpp          |  5 +++++
 src/libcamera/software_isp/debayer_cpu.cpp | 26 +++++++++++++++++-----
 src/libcamera/software_isp/swstats_cpu.cpp | 16 +++++++++++++
 5 files changed, 52 insertions(+), 9 deletions(-)