C Specification
The VkSamplerYcbcrRange enum describes whether color components are encoded using the full range of numerical values or whether values are reserved for headroom and foot room. VkSamplerYcbcrRange is defined as:
// Provided by VK_VERSION_1_1
typedef enum VkSamplerYcbcrRange {
VK_SAMPLER_YCBCR_RANGE_ITU_FULL = 0,
VK_SAMPLER_YCBCR_RANGE_ITU_NARROW = 1,
} VkSamplerYcbcrRange;
Description
-
VK_SAMPLER_YCBCR_RANGE_ITU_FULL
specifies that the full range of the encoded values are valid and interpreted according to the ITU “full range” quantization rules. -
VK_SAMPLER_YCBCR_RANGE_ITU_NARROW
specifies that headroom and foot room are reserved in the numerical range of encoded values, and the remaining values are expanded according to the ITU “narrow range” quantization rules.
The formulae for these conversions is described in the Sampler Y′CBCR Range Expansion section of the Image Operations chapter.
No range modification takes place if ycbcrModel
is
VK_SAMPLER_YCBCR_MODEL_CONVERSION_RGB_IDENTITY
; the ycbcrRange
field of VkSamplerYcbcrConversionCreateInfo is ignored in this case.
Document Notes
For more information, see the Vulkan Specification
This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.