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ipa: rpi: controller: Use libipa's Pwl class

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To reduce code duplication, use the Pwl class from libipa. This also
removes the Pwl class from the Raspberry Pi IPA.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
Acked-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Paul Elder 2024-03-29 21:44:29 +09:00
parent 95fa5c40ba
commit 9fcc0029ec
22 changed files with 106 additions and 494 deletions
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8
src/ipa/rpi/controller/rpi/agc_channel.cpp
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@ -130,7 +130,7 @@ int AgcConstraint::read(const libcamera::YamlObject &params)
return -EINVAL;
qHi = *value;
return yTarget.read(params["y_target"]);
return yTarget.readYaml(params["y_target"]);
}
static std::tuple<int, AgcConstraintMode>
@ -237,7 +237,7 @@ int AgcConfig::read(const libcamera::YamlObject &params)
return ret;
}
ret = yTarget.read(params["y_target"]);
ret = yTarget.readYaml(params["y_target"]);
if (ret)
return ret;
@ -715,7 +715,7 @@ static constexpr double EvGainYTargetLimit = 0.9;
static double constraintComputeGain(AgcConstraint &c, const Histogram &h, double lux,
double evGain, double &targetY)
{
targetY = c.yTarget.eval(c.yTarget.domain().clip(lux));
targetY = c.yTarget.eval(c.yTarget.domain().clamp(lux));
targetY = std::min(EvGainYTargetLimit, targetY * evGain);
double iqm = h.interQuantileMean(c.qLo, c.qHi);
return (targetY * h.bins()) / iqm;
@ -734,7 +734,7 @@ void AgcChannel::computeGain(StatisticsPtr &statistics, Metadata *imageMetadata,
* The initial gain and target_Y come from some of the regions. After
* that we consider the histogram constraints.
*/
targetY = config_.yTarget.eval(config_.yTarget.domain().clip(lux.lux));
targetY = config_.yTarget.eval(config_.yTarget.domain().clamp(lux.lux));
targetY = std::min(EvGainYTargetLimit, targetY * evGain);
/*