summaryrefslogtreecommitdiff
path: root/src/ipa/ipu3/ipu3_agc.h
AgeCommit message (Collapse)Author
2021-06-25libcamera/base: Move utils to the base libraryKieran Bingham
Move the utils functionality to the libcamera/base library. Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-24ipa: ipu3: Use libcamera::utils::Duration helper class for durationsUmang Jain
std::chrono::Duration is provided quite conveniently by libcamera::utils::Duration wrapper. Port IPAIPU3 to use that for duration-type entities (such as exposure time), such that it becomes consistent with rest of the codebase. The commit doesn't introduce any functional changes. Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
2021-06-09ipa: ipu3: Fix struct/class mismatch in forward declarationLaurent Pinchart
The ipu3_agc.h forward-declares the IPACameraSensorInfo structure, but incorrectly declares it as a class. This causes a compilation error with clang: include/libcamera/ipa/core_ipa_interface.h:24:1: error: 'IPACameraSensorInfo' defined as a struct here but previously declared as a class; this is valid, but may result in linker errors under the Microsoft C++ ABI [-Werror,-Wmismatched-tags] struct IPACameraSensorInfo ^ ../../src/ipa/ipu3/ipu3_agc.h:21:1: note: did you mean struct here? class IPACameraSensorInfo; ^~~~~ struct Fix it. Fixes: 384a53d3cdf7 ("ipa: ipu3: Calculate line duration from IPACameraSensorInfo") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Tested-by: Umang Jain <umang.jain@ideasonboard.com> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
2021-06-08ipa: ipu3: Calculate line duration from IPACameraSensorInfoUmang Jain
Squash \todo by calculating line duration from IPACameraSensorInfo, now passed in, to IPU3Agc::initialise(). Since line duration is now calculated from real values, store it as a private member in IPU3Agc class. As a further step, replace the associated global constant, kMaxExposureTime, with a private IPU3Agc class member as well, and assign its value correspondingly in IPU3Agc::initialise(), similar to previous precedence. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Tested-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2021-04-22ipa: ipu3: Add support for IPU3 AEC/AGC algorithmJean-Michel Hautbois
Implement basic auto-exposure (AE) and auto-gain (AG) correction functions. The functions computeTargetExposure() and computeGain() are adapted from the Raspberry Pi AGC implementation to suit the IPU3 structures, and filtering is added to reduce visible stepsize when there are large exposure changes. Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>