a90dc9bc5c
Rework the algorithm's usage of the active state, to store the value of controls for the last queued request in the queueRequest() function, and store a copy of the values in the corresponding frame context. The latter is used in the prepare() function to populate the ISP parameters with values corresponding to the right frame. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
301 lines
8.2 KiB
C++
301 lines
8.2 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2021-2022, Ideas On Board
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*
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* ipa_context.cpp - RkISP1 IPA Context
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*/
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#include "ipa_context.h"
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/**
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* \file ipa_context.h
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* \brief Context and state information shared between the algorithms
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*/
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namespace libcamera::ipa::rkisp1 {
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/**
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* \struct IPASessionConfiguration
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* \brief Session configuration for the IPA module
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*
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* The session configuration contains all IPA configuration parameters that
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* remain constant during the capture session, from IPA module start to stop.
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* It is typically set during the configure() operation of the IPA module, but
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* may also be updated in the start() operation.
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*/
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/**
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* \var IPASessionConfiguration::agc
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* \brief AGC parameters configuration of the IPA
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*
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* \var IPASessionConfiguration::agc.minShutterSpeed
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* \brief Minimum shutter speed supported with the configured sensor
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*
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* \var IPASessionConfiguration::agc.maxShutterSpeed
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* \brief Maximum shutter speed supported with the configured sensor
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*
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* \var IPASessionConfiguration::agc.minAnalogueGain
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* \brief Minimum analogue gain supported with the configured sensor
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*
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* \var IPASessionConfiguration::agc.maxAnalogueGain
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* \brief Maximum analogue gain supported with the configured sensor
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*
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* \var IPASessionConfiguration::agc.measureWindow
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* \brief AGC measure window
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*
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* \var IPASessionConfiguration::hw
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* \brief RkISP1-specific hardware information
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*
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* \var IPASessionConfiguration::hw.revision
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* \brief Hardware revision of the ISP
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*/
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/**
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* \var IPASessionConfiguration::awb
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* \brief AWB parameters configuration of the IPA
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*
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* \var IPASessionConfiguration::awb.measureWindow
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* \brief AWB measure window
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*
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* \var IPASessionConfiguration::awb.enabled
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* \brief Indicates if the AWB hardware is enabled and applies colour gains
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*
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* The AWB module of the ISP applies colour gains and computes statistics. It is
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* enabled when the AWB algorithm is loaded, regardless of whether the algorithm
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* operates in manual or automatic mode.
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*/
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/**
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* \var IPASessionConfiguration::lsc
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* \brief Lens Shading Correction configuration of the IPA
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*
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* \var IPASessionConfiguration::lsc.enabled
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* \brief Indicates if the LSC hardware is enabled
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*/
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/**
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* \var IPASessionConfiguration::sensor
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* \brief Sensor-specific configuration of the IPA
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*
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* \var IPASessionConfiguration::sensor.lineDuration
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* \brief Line duration in microseconds
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*
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* \var IPASessionConfiguration::sensor.size
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* \brief Sensor output resolution
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*/
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/**
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* \struct IPAActiveState
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* \brief Active state for algorithms
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*
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* The active state stores algorithm-specific data that needs to be shared
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* between multiple algorithms and the IPA module. It is accessible through the
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* IPAContext structure.
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*
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* \todo Split the data contained in this structure between the active state
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* and the frame contexts.
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*
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* Each of the fields in the active state belongs to either a specific
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* algorithm, or to the top-level IPA module. A field may be read by any
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* algorithm, but should only be written by its owner.
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*/
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/**
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* \var IPAActiveState::agc
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* \brief State for the Automatic Gain Control algorithm
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*
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* The exposure and gain are the latest values computed by the AGC algorithm.
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*
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* \var IPAActiveState::agc.exposure
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* \brief Exposure time expressed as a number of lines
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*
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* \var IPAActiveState::agc.gain
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* \brief Analogue gain multiplier
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*/
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/**
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* \var IPAActiveState::awb
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* \brief State for the Automatic White Balance algorithm
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*
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* \struct IPAActiveState::awb.gains
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* \brief White balance gains
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*
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* \struct IPAActiveState::awb.gains.manual
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* \brief Manual white balance gains (set through requests)
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*
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* \var IPAActiveState::awb.gains.manual.red
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* \brief Manual white balance gain for R channel
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*
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* \var IPAActiveState::awb.gains.manual.green
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* \brief Manual white balance gain for G channel
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*
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* \var IPAActiveState::awb.gains.manual.blue
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* \brief Manual white balance gain for B channel
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*
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* \struct IPAActiveState::awb.gains.automatic
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* \brief Automatic white balance gains (computed by the algorithm)
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*
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* \var IPAActiveState::awb.gains.automatic.red
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* \brief Automatic white balance gain for R channel
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*
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* \var IPAActiveState::awb.gains.automatic.green
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* \brief Automatic white balance gain for G channel
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*
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* \var IPAActiveState::awb.gains.automatic.blue
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* \brief Automatic white balance gain for B channel
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*
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* \var IPAActiveState::awb.autoEnabled
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* \brief Whether the Auto White Balance algorithm is enabled
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*/
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/**
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* \var IPAActiveState::cproc
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* \brief State for the Color Processing algorithm
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*
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* \struct IPAActiveState::cproc.brightness
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* \brief Brightness level
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*
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* \var IPAActiveState::cproc.contrast
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* \brief Contrast level
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*
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* \var IPAActiveState::cproc.saturation
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* \brief Saturation level
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*/
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/**
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* \var IPAActiveState::dpf
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* \brief State for the Denoise Pre-Filter algorithm
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*
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* \var IPAActiveState::dpf.denoise
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* \brief Indicates if denoise is activated
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*/
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/**
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* \var IPAActiveState::filter
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* \brief State for the Filter algorithm
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*
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* \struct IPAActiveState::filter.denoise
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* \brief Denoising level
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*
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* \var IPAActiveState::filter.sharpness
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* \brief Sharpness level
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*/
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/**
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* \struct IPAFrameContext
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* \brief Per-frame context for algorithms
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*
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* \todo Populate the frame context for all algorithms
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*/
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/**
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* \var IPAFrameContext::agc
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* \brief Automatic Gain Control parameters for this frame
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*
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* The exposure and gain are provided by the AGC algorithm, and are to be
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* applied to the sensor in order to take effect for this frame.
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*
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* \var IPAFrameContext::agc.exposure
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* \brief Exposure time expressed as a number of lines
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*
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* \var IPAFrameContext::agc.gain
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* \brief Analogue gain multiplier
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*
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* The gain should be adapted to the sensor specific gain code before applying.
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*/
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/**
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* \var IPAFrameContext::awb
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* \brief Automatic White Balance parameters for this frame
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*
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* \struct IPAFrameContext::awb.gains
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* \brief White balance gains
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*
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* \var IPAFrameContext::awb.gains.red
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* \brief White balance gain for R channel
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*
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* \var IPAFrameContext::awb.gains.green
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* \brief White balance gain for G channel
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*
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* \var IPAFrameContext::awb.gains.blue
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* \brief White balance gain for B channel
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*
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* \var IPAFrameContext::awb.temperatureK
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* \brief Estimated color temperature
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*
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* \var IPAFrameContext::awb.autoEnabled
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* \brief Whether the Auto White Balance algorithm is enabled
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*/
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/**
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* \var IPAFrameContext::cproc
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* \brief Color Processing parameters for this frame
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*
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* \struct IPAFrameContext::cproc.brightness
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* \brief Brightness level
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*
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* \var IPAFrameContext::cproc.contrast
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* \brief Contrast level
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*
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* \var IPAFrameContext::cproc.saturation
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* \brief Saturation level
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*
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* \var IPAFrameContext::cproc.update
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* \brief Indicates if the color processing parameters have been updated
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* compared to the previous frame
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*/
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/**
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* \var IPAFrameContext::dpf
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* \brief Denoise Pre-Filter parameters for this frame
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*
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* \var IPAFrameContext::dpf.denoise
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* \brief Indicates if denoise is activated
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*
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* \var IPAFrameContext::dpf.update
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* \brief Indicates if the denoise pre-filter parameters have been updated
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* compared to the previous frame
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*/
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/**
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* \var IPAFrameContext::filter
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* \brief Filter parameters for this frame
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*
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* \struct IPAFrameContext::filter.denoise
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* \brief Denoising level
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*
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* \var IPAFrameContext::filter.sharpness
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* \brief Sharpness level
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*
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* \var IPAFrameContext::filter.updateParams
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* \brief Indicates if the filter parameters have been updated compared to the
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* previous frame
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*/
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/**
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* \var IPAFrameContext::sensor
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* \brief Sensor configuration that used been used for this frame
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*
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* \var IPAFrameContext::sensor.exposure
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* \brief Exposure time expressed as a number of lines
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*
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* \var IPAFrameContext::sensor.gain
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* \brief Analogue gain multiplier
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*/
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/**
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* \struct IPAContext
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* \brief Global IPA context data shared between all algorithms
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*
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* \var IPAContext::configuration
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* \brief The IPA session configuration, immutable during the session
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*
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* \var IPAContext::activeState
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* \brief The IPA active state, storing the latest state for all algorithms
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*
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* \var IPAContext::frameContexts
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* \brief Ring buffer of per-frame contexts
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*/
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} /* namespace libcamera::ipa::rkisp1 */
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