Psychtoolbox>PsychVulkanCore.{mex*} subfunction

hdr = PsychVulkanCore(‘GetHDRProperties’, vulkanWindow);

Return HDR properties of Vulkan presentation window ‘vulkanWindow’.
‘hdr’ is a struct with information about the HDR properties and settings for the
display and window represented by ‘vulkanWindow’. The following fields are
defined:
‘GPUIndex’ = Index of the Vulkan device used for this window.
‘Valid’ = Are the HDR display properties valid? 0 = No, as no data could be
queried from the display, 1 = Yes, data has been queried from display and is
supposed to represent actual display HDR capabilities and properties.
‘HDRMode’ 0 = None (SDR), 1 = Basic HDR-10 enabled with BT-2020 color space, 10
bpc color precision, and ST-2084 PQ Perceptual Quantizer EOTF.
‘LocalDimmingControl’ 0 = No, 1 = Local dimming control supported.
‘MinLuminance’ Minimum supported luminance in nits.
‘MaxLuminance’ Maximum supported peak / burst luminance in nits.
‘MaxFrameAverageLightLevel’ Maximum sustainable supported luminance in nits.
‘MaxContentLightLevel’ Maximum desired content light level in nits.
‘ColorGamut’ A 2-by-4 matrix encoding the CIE-1931 2D chromaticity coordinates
of the red, green, and blue color primaries in columns 1, 2 and 3, and the
white-point in column 4.
‘ColorSpace’ Vulkan colorspace used for display. See VkColorSpaceKHR spec for
reference.
‘ColorFormat’ Vulkan pixel color format used for display. See VkFormat spec for
reference.
‘ColorPrecision’ Effective color precision of the Vulkan interop image and
Vulkan swapChain: 0 = GL_RGBA8, 1 = GL_RGB10A2, 2 = GL_RGBA16F, 3 = GL_RGBA16.

###See also: OpenWindow HDRMetadata