C Specification
The VkDescriptorUpdateTemplateEntry
structure is defined as:
typedef struct VkDescriptorUpdateTemplateEntry {
uint32_t dstBinding;
uint32_t dstArrayElement;
uint32_t descriptorCount;
VkDescriptorType descriptorType;
size_t offset;
size_t stride;
} VkDescriptorUpdateTemplateEntry;
or the equivalent
typedef VkDescriptorUpdateTemplateEntry VkDescriptorUpdateTemplateEntryKHR;
Members
-
dstBinding
is the descriptor binding to update when using this descriptor update template. -
dstArrayElement
is the starting element in the array belonging todstBinding
. If the descriptor binding identified bysrcBinding
has a descriptor type ofVK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT
thendstArrayElement
specifies the starting byte offset to update. -
descriptorCount
is the number of descriptors to update. IfdescriptorCount
is greater than the number of remaining array elements in the destination binding, those affect consecutive bindings in a manner similar to VkWriteDescriptorSet above. If the descriptor binding identified bydstBinding
has a descriptor type ofVK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT
thendescriptorCount
specifies the number of bytes to update and the remaining array elements in the destination binding refer to the remaining number of bytes in it. -
descriptorType
is a VkDescriptorType specifying the type of the descriptor. -
offset
is the offset in bytes of the first binding in the raw data structure. -
stride
is the stride in bytes between two consecutive array elements of the descriptor update informations in the raw data structure. The actual pointer ptr for each array element j of update entry i is computed using the following formula:const char *ptr = (const char *)pData + pDescriptorUpdateEntries[i].offset + j * pDescriptorUpdateEntries[i].stride
The stride is useful in case the bindings are stored in structs along with other data. If
descriptorType
isVK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT
then the value ofstride
is ignored and the stride is assumed to be1
, i.e. the descriptor update information for them is always specified as a contiguous range.
Description
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.
Copyright
Copyright (c) 2014-2019 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.