[PATCH 10/11] ipa: rpi: controller: Replace Pwl::readYaml() with YamlObject::get()

Kieran Bingham kieran.bingham at ideasonboard.com
Thu Jun 13 13:06:33 CEST 2024


Quoting Laurent Pinchart (2024-06-13 02:39:43)
> Now that deserializing a Pwl object from YAML data is possible using the
> YamlObject::get() function, replace all usage of Pwl::readYaml() to
> prepare for its removal.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> ---
>  src/ipa/rpi/controller/rpi/af.cpp          | 2 +-
>  src/ipa/rpi/controller/rpi/agc_channel.cpp | 9 +++++----
>  src/ipa/rpi/controller/rpi/awb.cpp         | 3 ++-
>  src/ipa/rpi/controller/rpi/ccm.cpp         | 6 +++---
>  src/ipa/rpi/controller/rpi/contrast.cpp    | 4 +++-
>  src/ipa/rpi/controller/rpi/geq.cpp         | 6 +++---
>  src/ipa/rpi/controller/rpi/hdr.cpp         | 4 ++--
>  src/ipa/rpi/controller/rpi/tonemap.cpp     | 2 +-
>  8 files changed, 20 insertions(+), 16 deletions(-)
> 
> diff --git a/src/ipa/rpi/controller/rpi/af.cpp b/src/ipa/rpi/controller/rpi/af.cpp
> index 304629d6d4e5..5ca76dd98b4b 100644
> --- a/src/ipa/rpi/controller/rpi/af.cpp
> +++ b/src/ipa/rpi/controller/rpi/af.cpp
> @@ -139,7 +139,7 @@ int Af::CfgParams::read(const libcamera::YamlObject &params)
>         readNumber<uint32_t>(skipFrames, params, "skip_frames");
>  
>         if (params.contains("map"))
> -               map.readYaml(params["map"]);
> +               map = params["map"].get<ipa::Pwl>(ipa::Pwl{});

I look forward to your resurrection of the default constructor candidate
in the optionals!

>         else
>                 LOG(RPiAf, Warning) << "No map defined";
>  
> diff --git a/src/ipa/rpi/controller/rpi/agc_channel.cpp b/src/ipa/rpi/controller/rpi/agc_channel.cpp
> index a381dd972215..cf2565a83836 100644
> --- a/src/ipa/rpi/controller/rpi/agc_channel.cpp
> +++ b/src/ipa/rpi/controller/rpi/agc_channel.cpp
> @@ -130,7 +130,8 @@ int AgcConstraint::read(const libcamera::YamlObject &params)
>                 return -EINVAL;
>         qHi = *value;
>  
> -       return yTarget.readYaml(params["y_target"]);
> +       yTarget = params["y_target"].get<ipa::Pwl>(ipa::Pwl{});
> +       return yTarget.empty() ? -EINVAL : 0;

Utlimately this is the biggest change here. Instead of returning an
error - it will return a default construction or the result. Pwl is fine
here as we can check that it's empty or not - but I wonder what happens
on more complex structures like a Matrix where we default construct to
an identity ...

How would that be handled?


It seems because Vector::readYaml wasn't used yet - I can't see an
equivelent implemention for that concept.

I'm curious how we make this expressive for the three conditions though:

 1. Get succeeds, value returned.
 2. Get fails desired value returned.
 3. Get fails Do not want a default value, and knowing it failed is
    important.

Is 3. a condition we will require?

But ... that aside - this works for Pwl ... so on that basis ...

Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com>

>  }
>  
>  static std::tuple<int, AgcConstraintMode>
> @@ -237,9 +238,9 @@ int AgcConfig::read(const libcamera::YamlObject &params)
>                         return ret;
>         }
>  
> -       ret = yTarget.readYaml(params["y_target"]);
> -       if (ret)
> -               return ret;
> +       yTarget = params["y_target"].get<ipa::Pwl>(ipa::Pwl{});
> +       if (yTarget.empty())
> +               return -EINVAL;
>  
>         speed = params["speed"].get<double>(0.2);
>         startupFrames = params["startup_frames"].get<uint16_t>(10);
> diff --git a/src/ipa/rpi/controller/rpi/awb.cpp b/src/ipa/rpi/controller/rpi/awb.cpp
> index 603953d7d863..003c8fa137f3 100644
> --- a/src/ipa/rpi/controller/rpi/awb.cpp
> +++ b/src/ipa/rpi/controller/rpi/awb.cpp
> @@ -49,7 +49,8 @@ int AwbPrior::read(const libcamera::YamlObject &params)
>                 return -EINVAL;
>         lux = *value;
>  
> -       return prior.readYaml(params["prior"]);
> +       prior = params["prior"].get<ipa::Pwl>(ipa::Pwl{});
> +       return prior.empty() ? -EINVAL : 0;
>  }
>  
>  static int readCtCurve(ipa::Pwl &ctR, ipa::Pwl &ctB, const libcamera::YamlObject &params)
> diff --git a/src/ipa/rpi/controller/rpi/ccm.cpp b/src/ipa/rpi/controller/rpi/ccm.cpp
> index 3272a1416ffa..e673964c1856 100644
> --- a/src/ipa/rpi/controller/rpi/ccm.cpp
> +++ b/src/ipa/rpi/controller/rpi/ccm.cpp
> @@ -71,9 +71,9 @@ int Ccm::read(const libcamera::YamlObject &params)
>         int ret;
>  
>         if (params.contains("saturation")) {
> -               ret = config_.saturation.readYaml(params["saturation"]);
> -               if (ret)
> -                       return ret;
> +               config_.saturation = params["saturation"].get<ipa::Pwl>(ipa::Pwl{});
> +               if (config_.saturation.empty())
> +                       return -EINVAL;
>         }
>  
>         for (auto &p : params["ccms"].asList()) {
> diff --git a/src/ipa/rpi/controller/rpi/contrast.cpp b/src/ipa/rpi/controller/rpi/contrast.cpp
> index 66871a61ed28..9b37943ae9c9 100644
> --- a/src/ipa/rpi/controller/rpi/contrast.cpp
> +++ b/src/ipa/rpi/controller/rpi/contrast.cpp
> @@ -53,7 +53,9 @@ int Contrast::read(const libcamera::YamlObject &params)
>         config_.hiHistogram = params["hi_histogram"].get<double>(0.95);
>         config_.hiLevel = params["hi_level"].get<double>(0.95);
>         config_.hiMax = params["hi_max"].get<double>(2000);
> -       return config_.gammaCurve.readYaml(params["gamma_curve"]);
> +
> +       config_.gammaCurve = params["gamma_curve"].get<ipa::Pwl>(ipa::Pwl{});
> +       return config_.gammaCurve.empty() ? -EINVAL : 0;
>  }
>  
>  void Contrast::setBrightness(double brightness)
> diff --git a/src/ipa/rpi/controller/rpi/geq.cpp b/src/ipa/rpi/controller/rpi/geq.cpp
> index c9c38ebff5ba..40e7191ba16a 100644
> --- a/src/ipa/rpi/controller/rpi/geq.cpp
> +++ b/src/ipa/rpi/controller/rpi/geq.cpp
> @@ -44,9 +44,9 @@ int Geq::read(const libcamera::YamlObject &params)
>         }
>  
>         if (params.contains("strength")) {
> -               int ret = config_.strength.readYaml(params["strength"]);
> -               if (ret)
> -                       return ret;
> +               config_.strength = params["strength"].get<ipa::Pwl>(ipa::Pwl{});
> +               if (config_.strength.empty())
> +                       return -EINVAL;
>         }
>  
>         return 0;
> diff --git a/src/ipa/rpi/controller/rpi/hdr.cpp b/src/ipa/rpi/controller/rpi/hdr.cpp
> index d533a4ea4e65..f3da8291bf5d 100644
> --- a/src/ipa/rpi/controller/rpi/hdr.cpp
> +++ b/src/ipa/rpi/controller/rpi/hdr.cpp
> @@ -42,7 +42,7 @@ void HdrConfig::read(const libcamera::YamlObject &params, const std::string &mod
>  
>         /* Lens shading related parameters. */
>         if (params.contains("spatial_gain_curve")) {
> -               spatialGainCurve.readYaml(params["spatial_gain_curve"]);
> +               spatialGainCurve = params["spatial_gain_curve"].get<ipa::Pwl>(ipa::Pwl{});
>         } else if (params.contains("spatial_gain")) {
>                 double spatialGain = params["spatial_gain"].get<double>(2.0);
>                 spatialGainCurve.append(0.0, spatialGain);
> @@ -66,7 +66,7 @@ void HdrConfig::read(const libcamera::YamlObject &params, const std::string &mod
>         iirStrength = params["iir_strength"].get<double>(8.0);
>         strength = params["strength"].get<double>(1.5);
>         if (tonemapEnable)
> -               tonemap.readYaml(params["tonemap"]);
> +               tonemap = params["tonemap"].get<ipa::Pwl>(ipa::Pwl{});
>         speed = params["speed"].get<double>(1.0);
>         if (params.contains("hi_quantile_targets")) {
>                 hiQuantileTargets = params["hi_quantile_targets"].getList<double>().value();
> diff --git a/src/ipa/rpi/controller/rpi/tonemap.cpp b/src/ipa/rpi/controller/rpi/tonemap.cpp
> index 2dc50dfc8d2d..3422adfe7dee 100644
> --- a/src/ipa/rpi/controller/rpi/tonemap.cpp
> +++ b/src/ipa/rpi/controller/rpi/tonemap.cpp
> @@ -33,7 +33,7 @@ int Tonemap::read(const libcamera::YamlObject &params)
>         config_.detailSlope = params["detail_slope"].get<double>(0.1);
>         config_.iirStrength = params["iir_strength"].get<double>(1.0);
>         config_.strength = params["strength"].get<double>(1.0);
> -       config_.tonemap.readYaml(params["tone_curve"]);
> +       config_.tonemap = params["tone_curve"].get<ipa::Pwl>(ipa::Pwl{});
>         return 0;
>  }
>  
> -- 
> Regards,
> 
> Laurent Pinchart
>


More information about the libcamera-devel mailing list