VkPhysicalDeviceBorderColorSwizzleFeaturesEXT

The VkPhysicalDeviceBorderColorSwizzleFeaturesEXT structure is defined as:

typedef struct VkPhysicalDeviceBorderColorSwizzleFeaturesEXT {
    VkStructureType sType;
    void* pNext;
    VkBool32 borderColorSwizzle;
    VkBool32 borderColorSwizzleFromImage;
} VkPhysicalDeviceBorderColorSwizzleFeaturesEXT;

This structure describes the following features:

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• borderColorSwizzle indicates that defined values are returned by sampled image operations when used with a sampler that uses a VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK, VK_BORDER_COLOR_INT_OPAQUE_BLACK, VK_BORDER_COLOR_FLOAT_CUSTOM_EXT, or VK_BORDER_COLOR_INT_CUSTOM_EXT borderColor and an image view that uses a non-identity component mapping, when either borderColorSwizzleFromImage is enabled or the VkSamplerBorderColorComponentMappingCreateInfoEXT is specified.
• borderColorSwizzleFromImage indicates that the implementation will return the correct border color values from sampled image operations under the conditions expressed above, without the application having to specify the border color component mapping when creating the sampler object. If this feature bit is not set, applications can chain a VkSamplerBorderColorComponentMappingCreateInfoEXT structure when creating samplers for use with image views that do not have an identity swizzle and, when those samplers are combined with image views using the same component mapping, sampled image operations that use opaque black or custom border colors will return the correct border color values.

If the VkPhysicalDeviceBorderColorSwizzleFeaturesEXT structure is included in the pNext chain of the VkPhysicalDeviceFeatures2 structure passed to vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. VkPhysicalDeviceBorderColorSwizzleFeaturesEXT can also be used in the pNext chain of VkDeviceCreateInfo to selectively enable these features.