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path: root/src/ipa/raspberrypi/controller/rpi/agc.cpp
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2020-11-23libcamera: ipa: raspberrypi: agc: Fetch AWB status only onceDavid Plowman
Introduce a function to fetch the AwbStatus (fetchAwbStatus), and call it unconditionally at the top of Prepare so that both Prepare and Process know thereafter that it's been done. 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>
2020-11-23libcamera: ipa: raspberrypi: agc: Improve centre-weighted luminance calucationDavid Plowman
Previously the calculation computed Y for each region before returning the weighted average, which "baked in" the over-importance of small statistics regions. The revised calculation will treat all pixels equally when the region weights are the same, making it easier to use. With the previous scheme, proper "average" metering was difficult to implement. 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>
2020-11-23libcamera: ipa: raspberrypi: agc: Rename method to divideUpExposureDavid Plowman
The method formerly known as divvyupExposure is given a more understandable name. 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>
2020-11-23libcamera: ipa: raspberrypi: agc: Remove unnecessary lockingDavid Plowman
On the libcamera/VC4 platform the AGC Prepare/Process methods, and any changes to the AGC settings, run synchronously - so a number of mutexes and copies are unnecessary and can be removed. 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>
2020-11-23libcamera: ipa: raspberrypi: agc: Use libcamera debugDavid Plowman
Replace Raspberry Pi debug with libcamera debug. 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>
2020-08-25meson: Remove -Wno-unused-parameterLaurent Pinchart
We build libcamera with -Wno-unused-parameter and this doesn't cause much issue internally. However, it prevents catching unused parameters in inline functions defined in public headers. This can lead to compilation warnings for applications compiled without -Wno-unused-parameter. To catch those issues, remove -Wno-unused-parameter and fix all the related warnings with [[maybe_unused]]. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-06-22libcamera: ipa: raspberrypi: Recalculate camera exposure/gain when camera ↵David Plowman
mode changes This commit causes the AGC to recalculate its camera exposure/gain values when the camera mode changes. For example it's possible that the exposure profile could be changed by the application so the division between exposure time and analogue gain may be different. The other underlying reason (and which this commit accomplishes too) is that the sensor's line timing may change in a new mode, and because V4L2 drivers store a number of exposure _lines_, the resulting _time_ will "change under our feet". So we have to go through the process of recalculating the correct number of lines and writing this back to the sensor with every mode switch, regardless of anything else. 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>
2020-05-11libcamera: 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>