diff options
| -rw-r--r-- | src/ipa/libipa/pwl.cpp | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/ipa/libipa/pwl.cpp b/src/ipa/libipa/pwl.cpp index cf864fbb..3c639645 100644 --- a/src/ipa/libipa/pwl.cpp +++ b/src/ipa/libipa/pwl.cpp @@ -459,4 +459,39 @@ std::string Pwl::toString() const } /* namespace ipa */ +#ifndef __DOXYGEN__ +/* + * The YAML data shall be a list of numerical values with an even number of + * elements. They are parsed in pairs into x and y points in the piecewise + * linear function, and added in order. x must be monotonically increasing. + */ +template<> +std::optional<ipa::Pwl> +YamlObject::Getter<ipa::Pwl>::get(const YamlObject &obj) const +{ + if (!obj.size() || obj.size() % 2) + return std::nullopt; + + ipa::Pwl pwl; + + const auto &list = obj.asList(); + + for (auto it = list.begin(); it != list.end(); it++) { + auto x = it->get<double>(); + if (!x) + return std::nullopt; + auto y = (++it)->get<double>(); + if (!y) + return std::nullopt; + + pwl.append(*x, *y); + } + + if (pwl.size() != obj.size() / 2) + return std::nullopt; + + return pwl; +} +#endif /* __DOXYGEN__ */ + } /* namespace libcamera */ |