resolve_channel_names()

std::vector< std::string > MayaFlux::IO::EXRWriter::resolve_channel_names ( const ImageData &  data, const ImageWriteOptions &  options  ) const

private

Resolve channel name list based on options and channel count.

Definition at line 92 of file EXRWriter.cpp.

{
    if (!options.channel_names.empty()) {
        if (options.channel_names.size() != data.channels) {
            MF_WARN(Journal::Component::IO, Journal::Context::FileIO,
                "EXRWriter: channel_names size ({}) does not match channels ({}); "
                "falling back to defaults",
                options.channel_names.size(), data.channels);
        } else {
            return options.channel_names;
        }
    }
 
    switch (data.channels) {
    case 1:
        return { "Y" };
    case 2:
        return { "Y", "A" };
    case 3:
        return { "B", "G", "R" };
    case 4:
        return { "A", "B", "G", "R" };
    default: {
        std::vector<std::string> names;
        names.reserve(data.channels);
        for (uint32_t i = 0; i < data.channels; ++i) {
            names.emplace_back("C" + std::to_string(i));
        }
        return names;
    }
    }
}

References MayaFlux::IO::ImageWriteOptions::channel_names, MayaFlux::IO::ImageData::channels, MayaFlux::Journal::FileIO, MayaFlux::Journal::IO, and MF_WARN.

Referenced by write().

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