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path: root/src/ipa/raspberrypi/controller/rpi
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2020-08-05libcamera: ipa: raspberrypi: ALSC: Resample luminance tableDavid Plowman
This fixes a bug where the luminance correction table was not being resampled according to the camera mode, in the same way as the colour tables. This could be noticeable if any camera modes crop aggressively. This resampling can be done "up front" in the SwitchMode, as we have only a single fixed luminance table. In order to protect the recalculation of the table from the asynchronous thread (which reads it) I've elected to wait for that thread to go idle (though I doubt it would have mattered much). As a by-product of stopping the thread, it no longer needs its own copy of the camera mode (async_camera_mode_). 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>
2020-08-05libcamera: ipa: raspberrypi: ALSC: Improve locking in a few placesDavid Plowman
Fix up a few locations where we call notify_one() with the lock held. In particular, restartAsync does not need to be called with the lock held for its entire duration. 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>
2020-08-05libcamera: ipa: raspberrypi: ALSC: Camera mode does not need to be atomicDavid Plowman
In the libcamera framework, SwitchMode (which overwrites the camera_mode) cannot run concurrently with Prepare (which uses it). 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>
2020-07-03ipa: raspberrypi: Enable focus measure without recompileDavid Plowman
Previously, output of the focus measure could not be enabled without recompiling (because of the RPI_LOGGING_ENABLE macro). This uses the libcamera logging mechanism instead, so can be enabled/disabled at runtime. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-06-25ipa: rpi: Add "focus" algorithmDavid Plowman
Adds FocusStatus to the image metadata, containing contrast measurements across the image. Optionally also prints a contrast measure to the console, to aid in manual adjustment of the lens. Note that it is not an actual auto-focus algorithm that can drive a lens! Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-06-25libcamera: ipa: raspberrypi: Add sharpness strength controlDavid Plowman
The sharpness control is, loosely speaking, a gain applied to the amount of sharpening added to an image. We also report the sharpness setting used back to the caller in metadata. 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>
2020-06-25libcamera: ipa: raspberrypi: Make sharpening mode_factor an ordinary doubleDavid Plowman
No need for it to be std::atomic as SwitchMode runs synchronously with Prepare. 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>
2020-06-22libcamera: 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>
2020-06-22libcamera: ipa: raspberrypi: Allow SwitchMode method to return camera settingsDavid Plowman
This commit adds a Metadata parameter to the SwitchMode method enabling it to return camera and other settings to the caller (usually the configure method, just after the camera mode has been selected). In future this will allow the Raspberry Pi IPAs to take those settings (such as exposure and analogue gain) and program them directly into the camera or ISP before the camera is even started. 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>