C Specification
To query 8-bit storage features additionally supported call
vkGetPhysicalDeviceFeatures2 with a
VkPhysicalDevice8BitStorageFeatures
structure included in the
pNext
chain of its pFeatures
parameter.
The VkPhysicalDevice8BitStorageFeatures
structure can also be
included in the pNext
chain of a VkDeviceCreateInfo structure,
in which case it controls which additional features are enabled in the
device.
The VkPhysicalDevice8BitStorageFeatures structure is defined as:
// Provided by VK_VERSION_1_2
typedef struct VkPhysicalDevice8BitStorageFeatures {
VkStructureType sType;
void* pNext;
VkBool32 storageBuffer8BitAccess;
VkBool32 uniformAndStorageBuffer8BitAccess;
VkBool32 storagePushConstant8;
} VkPhysicalDevice8BitStorageFeatures;
or the equivalent
// Provided by VK_KHR_8bit_storage
typedef VkPhysicalDevice8BitStorageFeatures VkPhysicalDevice8BitStorageFeaturesKHR;
Members
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure.
Description
-
storageBuffer8BitAccess
indicates whether objects in theStorageBuffer
orPhysicalStorageBuffer
storage class with theBlock
decoration can have 8-bit integer members. If this feature is not enabled, 8-bit integer members must not be used in such objects. This also indicates whether shader modules can declare theStorageBuffer8BitAccess
capability. -
uniformAndStorageBuffer8BitAccess
indicates whether objects in theUniform
storage class with theBlock
decoration and in theStorageBuffer
orPhysicalStorageBuffer
storage class with the same decoration can have 8-bit integer members. If this feature is not enabled, 8-bit integer members must not be used in such objects. This also indicates whether shader modules can declare theUniformAndStorageBuffer8BitAccess
capability. -
storagePushConstant8
indicates whether objects in thePushConstant
storage class can have 8-bit integer members. If this feature is not enabled, 8-bit integer members must not be used in such objects. This also indicates whether shader modules can declare theStoragePushConstant8
capability.
See Also
VkBool32
, VkStructureType
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) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.