VkImageViewSampleWeightCreateInfoQCOM(3)

Name

VkImageViewSampleWeightCreateInfoQCOM - Structure describing weight sampling parameters for image view

C Specification

If the pNext chain includes a VkImageViewSampleWeightCreateInfoQCOM structure, then that structure includes a parameter specifying the parameters for weight image views used in weight image sampling.

The VkImageViewSampleWeightCreateInfoQCOM structure is defined as:

// Provided by VK_QCOM_image_processing
typedef struct VkImageViewSampleWeightCreateInfoQCOM {
    VkStructureType    sType;
    const void*        pNext;
    VkOffset2D         filterCenter;
    VkExtent2D         filterSize;
    uint32_t           numPhases;
} VkImageViewSampleWeightCreateInfoQCOM;

Members

sType is a VkStructureType value identifying this structure.
pNext is NULL or a pointer to a structure extending this structure.
filterCenter is a VkOffset2D describing the location of the weight filter origin.
filterSize is a VkExtent2D specifying weight filter dimensions.
numPhases is number of sub-pixel filter phases.

Description

The filterCenter specifies the origin or center of the filter kernel, as described in Weight Sampling Operation. The numPhases describes the number of sub-pixel filter phases as described in Weight Sampling Phases.

Valid Usage

VUID-VkImageViewSampleWeightCreateInfoQCOM-filterSize-06958
filterSize.width must be less than or equal to VkPhysicalDeviceImageProcessingPropertiesQCOM::maxWeightFilterDimension.width
VUID-VkImageViewSampleWeightCreateInfoQCOM-filterSize-06959
filterSize.height must be less than or equal to VkPhysicalDeviceImageProcessingPropertiesQCOM::maxWeightFilterDimension.height
VUID-VkImageViewSampleWeightCreateInfoQCOM-filterCenter-06960
filterCenter.x must be less than or equal to (filterSize.width - 1)
VUID-VkImageViewSampleWeightCreateInfoQCOM-filterCenter-06961
filterCenter.y must be less than or equal to (filterSize.height - 1)
VUID-VkImageViewSampleWeightCreateInfoQCOM-numPhases-06962
numPhases must be a power of two squared value (i.e., 1, 4, 16, 64, 256, etc.)
VUID-VkImageViewSampleWeightCreateInfoQCOM-numPhases-06963
numPhases must be less than or equal to VkPhysicalDeviceImageProcessingPropertiesQCOM::maxWeightFilterPhases

Valid Usage (Implicit)

VUID-VkImageViewSampleWeightCreateInfoQCOM-sType-sType
sType must be VK_STRUCTURE_TYPE_IMAGE_VIEW_SAMPLE_WEIGHT_CREATE_INFO_QCOM

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.