VkHdrMetadataEXT

typedef struct VkHdrMetadataEXT {
    // Display primary in chromaticity coordinates;
    VkStructureType sType;
    const void* pNext;
    //  From SMPTE 2086;
    VkXYColorEXT displayPrimaryRed;
    VkXYColorEXT displayPrimaryGreen;
    VkXYColorEXT displayPrimaryBlue;
    VkXYColorEXT whitePoint;
    float maxLuminance;
    float minLuminance;
    //  From CTA 861.3;
    float maxContentLightLevel;
    float maxFrameAverageLightLevel;
} VkHdrMetadataEXT;

pub struct HdrMetadataEXT {
    /// Display primary in chromaticity coordinates
    s_type: vk::StructureType,
    p_next: *const c_void,
    ///  From SMPTE 2086
    display_primary_red: vk::XYColorEXT, // Display primary's Red
    display_primary_green: vk::XYColorEXT, // Display primary's Green
    display_primary_blue: vk::XYColorEXT, // Display primary's Blue
    white_point: vk::XYColorEXT, // Display primary's Blue
    max_luminance: f32, // Display maximum luminance
    min_luminance: f32, // Display minimum luminance
    ///  From CTA 861.3
    max_content_light_level: f32, // Content maximum luminance
    max_frame_average_light_level: f32,
}