peak_icv_debayer_channel_layout.hpp

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#pragma once
 
#include <peak_common/detail/peak_common_defines.hpp>
#include <peak_icv/exceptions/peak_icv_exception.hpp>
 
#include <unordered_map>
#include <string>
 
namespace peak
{
namespace pipeline
{
enum class DebayerChannelLayout
{
    RGB = 0, 
    BGR,     
    RGBA,    
    BGRA     
};
 
PEAK_COMMON_NO_DISCARD inline std::string ToString(DebayerChannelLayout layout)
{
    switch (layout)
    {
    case DebayerChannelLayout::RGB:
        return "RGB";
    case DebayerChannelLayout::BGR:
        return "BGR";
    case DebayerChannelLayout::RGBA:
        return "RGBA";
    case DebayerChannelLayout::BGRA:
        return "BGRA";
    }
    const auto layoutStr = std::to_string(static_cast<int>(layout));
    throw peak::icv::NotSupportedException("The given debayer channel layout " + layoutStr + " is unknown!");
}
 
inline std::ostream& operator<<(std::ostream& os, DebayerChannelLayout layout)
{
    return os << ToString(layout);
}
 
namespace detail
{
PEAK_COMMON_NO_DISCARD inline DebayerChannelLayout ToDebayerChannelLayout(const std::string& layout)
{
    static const std::unordered_map<std::string, DebayerChannelLayout> channelLayoutMap{ { "RGB", DebayerChannelLayout::RGB },
        { "BGR", DebayerChannelLayout::BGR }, { "RGBA", DebayerChannelLayout::RGBA }, { "BGRA", DebayerChannelLayout::BGRA } };
 
    auto it = channelLayoutMap.find(layout);
    if (it == channelLayoutMap.end())
    {
        throw peak::icv::NotSupportedException("The given debayer channel layout " + layout + " is unknown!");
    }
    return it->second;
}
} // namespace detail
 
} // namespace pipeline 
} // namespace peak