find_hdr_format()

std::optional< vk::SurfaceFormatKHR > MayaFlux::Core::VKSwapchain::find_hdr_format ( const std::vector< vk::SurfaceFormatKHR > &  available_formats ) const

private

Find an HDR-capable format from available formats.

Definition at line 376 of file VKSwapchain.cpp.

{
    vk::SurfaceFormatKHR selected_format;
    std::vector<std::pair<vk::Format, vk::ColorSpaceKHR>> hdr_candidates = {
        { vk::Format::eR16G16B16A16Sfloat, vk::ColorSpaceKHR::eHdr10St2084EXT },
        { vk::Format::eR16G16B16A16Sfloat, vk::ColorSpaceKHR::eExtendedSrgbLinearEXT },
        { vk::Format::eA2B10G10R10UnormPack32, vk::ColorSpaceKHR::eHdr10St2084EXT },
        { vk::Format::eA2B10G10R10UnormPack32, vk::ColorSpaceKHR::eExtendedSrgbLinearEXT },
    };
 
    bool hdr_supported = false;
    for (const auto& candidate : hdr_candidates) {
        for (const auto& fmt : available_formats) {
            if (fmt.format == candidate.first && fmt.colorSpace == candidate.second) {
                selected_format = fmt;
                hdr_supported = true;
                break;
            }
        }
        if (hdr_supported) {
            return selected_format;
        }
    }
    return std::nullopt;
}

Referenced by create().

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