NekoCWD/libcamera
NekoCWD/libcamera
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages 7 Wiki Activity Actions

ipa: rkisp1: Rename frameContext to activeState

Browse source 
The RkISP1 IPA module creates a single instance of its IPAFrameContext
structure, effectively using it more as an active state than a per-frame
context. To prepare for the introduction of a real per-frame context,
move all the members of the IPAFrameContext structure to a new
IPAActiveState structure. The IPAFrameContext becomes effectively
unused at runtime, and will be populated back with per-frame data after
converting the RkISP1 IPA module to using a frame context queue.

The IPAActiveState structure will slowly morph into a different entity
as individual algorithm get later ported to the frame context API.

While at it, fix a typo in the documentation of the
Agc::computeExposure() function that incorrectly refers to the frame
context instead of the global context.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
This commit is contained in:
Kieran Bingham 2022-07-21 13:13:03 +01:00 • committed by Laurent Pinchart
parent 80d6657cb4
commit 906373331f
12 changed files with 105 additions and 93 deletions
Download patch file Download diff file Expand all files Collapse all files

23
src/ipa/rkisp1/algorithms/agc.cpp
View file

@ -73,8 +73,8 @@ Agc::Agc()
int Agc::configure(IPAContext &context, const IPACameraSensorInfo &configInfo)
{
/* Configure the default exposure and gain. */
context.frameContext.agc.gain = std::max(context.configuration.agc.minAnalogueGain, kMinAnalogueGain);
context.frameContext.agc.exposure = 10ms / context.configuration.sensor.lineDuration;
context.activeState.agc.gain = std::max(context.configuration.agc.minAnalogueGain, kMinAnalogueGain);
context.activeState.agc.exposure = 10ms / context.configuration.sensor.lineDuration;
/*
* According to the RkISP1 documentation:
@ -98,7 +98,10 @@ int Agc::configure(IPAContext &context, const IPACameraSensorInfo &configInfo)
context.configuration.agc.measureWindow.h_size = 3 * configInfo.outputSize.width / 4;
context.configuration.agc.measureWindow.v_size = 3 * configInfo.outputSize.height / 4;
/* \todo Use actual frame index by populating it in the frameContext. */
/*
* \todo Use the upcoming per-frame context API that will provide a
* frame index
*/
frameCount_ = 0;
return 0;
}
@ -140,18 +143,18 @@ utils::Duration Agc::filterExposure(utils::Duration exposureValue)
/**
* \brief Estimate the new exposure and gain values
* \param[inout] frameContext The shared IPA frame Context
* \param[inout] context The shared IPA Context
* \param[in] yGain The gain calculated on the current brightness level
* \param[in] iqMeanGain The gain calculated based on the relative luminance target
*/
void Agc::computeExposure(IPAContext &context, double yGain, double iqMeanGain)
{
IPASessionConfiguration &configuration = context.configuration;
IPAFrameContext &frameContext = context.frameContext;
IPAActiveState &activeState = context.activeState;
/* Get the effective exposure and gain applied on the sensor. */
uint32_t exposure = frameContext.sensor.exposure;
double analogueGain = frameContext.sensor.gain;
uint32_t exposure = activeState.sensor.exposure;
double analogueGain = activeState.sensor.gain;
/* Use the highest of the two gain estimates. */
double evGain = std::max(yGain, iqMeanGain);
@ -216,8 +219,8 @@ void Agc::computeExposure(IPAContext &context, double yGain, double iqMeanGain)
<< stepGain;
/* Update the estimated exposure and gain. */
frameContext.agc.exposure = shutterTime / configuration.sensor.lineDuration;
frameContext.agc.gain = stepGain;
activeState.agc.exposure = shutterTime / configuration.sensor.lineDuration;
activeState.agc.gain = stepGain;
}
/**
@ -329,7 +332,7 @@ void Agc::prepare(IPAContext &context,
[[maybe_unused]] IPAFrameContext &frameContext,
rkisp1_params_cfg *params)
{
if (context.frameContext.frameCount > 0)
if (context.activeState.frameCount > 0)
return;
/* Configure the measurement window. */