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path: root/src/ipa/raspberrypi/controller/rpi/awb.hpp
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2021-02-11ipa: raspberrypi: AWB: Fix race condition setting manual gainsDavid Plowman
Applying the manual_r_ and manual_b_ values is entirely removed from the asynchronous thread where their use constituted a race hazard. The main thread now deals with them entirely, involving the following changes. 1. SetManualGains() applies the new values directly to the "sync_results", meaning that Prepare() will jump to the new values immediately (which is a better behaviour). 2. Process() does not restart the asynchronous thread when manual gains are in force. 3. The asynchronous thread might be running when manual gains are set, so we ignore the results produced in this case. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-02-10ipa: raspberrypi: AWB: Remove unecessary frame count variableDavid Plowman
The variable frame_count2_ is not needed as Prepare() and Process() always run in lock step one after the other. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-02-07ipa: raspberrypi: AWB: Remove unnecessary locking for AWB settingsDavid Plowman
AWB settings get updated synchronously with the main thread, so the settings_mutex_ and associated locking can be removed. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-12-11ipa: raspberrypi: Estimate the colour temerature if starting with fixed ↵David Plowman
colour gains When the AWB is started from "cold" with fixed colour gains, we try to estimate the colour temperature this corresponds to (if a calibrated CT curve was supplied). When fixed colour gains are set after the AWB has been running, we leave the CT estimate alone, as the one we have is probably sensible. This estimated colour is passed out in the metadata for other algorithms - notably ALSC - to use. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-12-11ipa: raspberrypi: awb: Add GetConvergenceFrames method to AWB base classDavid Plowman
We add a GetConvergenceFrames method to the AwbAlgorithm class which can be called when the AWB is started from scratch. It suggests how many frames should be dropped before displaying any (while the AWB converges). The Raspberry Pi specific implementation makes this customisable from the tuning file. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-11-23libcamera: ipa: raspberrypi: awb: Add SwitchMode method to output AWB statusDavid Plowman
The Awb class now implements a SwitchMode method which outputs its AwbStatus for other algorithms to read, should they be interested. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-29ipa: raspberrypi: Rename the controller namespace from Rpi to RpiControllerNaushir Patuck
This avoids a namespace clash with the RPi namespace used by the ipa and pipeline handlers, and cleans up the syntax slightly. There are no functional changes in this commit. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-05-11libcamera: ipa: Raspberry Pi IPANaushir Patuck
Initial implementation of the Raspberry Pi (BCM2835) libcamera IPA and associated libraries. All code is licensed under the BSD-2-Clause terms. Copyright (c) 2019-2020 Raspberry Pi Trading Ltd. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>