C Specification
To query features additionally supported by the
https://www.khronos.org/registry/vulkan/specs/1.1-extensions/html/vkspec.html#VK_KHR_shader_float16_int8
extension, call
vkGetPhysicalDeviceFeatures2KHR with a
VkPhysicalDeviceShaderFloat16Int8FeaturesKHR
structure in the
pNext
chain.
The VkPhysicalDeviceShaderFloat16Int8FeaturesKHR
structure can also
be in the pNext
chain of a VkDeviceCreateInfo structure, in
which case it controls which additional features are enabled in the device.
The VkPhysicalDeviceShaderFloat16Int8FeaturesKHR
structure is defined
as:
typedef struct VkPhysicalDeviceShaderFloat16Int8FeaturesKHR {
VkStructureType sType;
void* pNext;
VkBool32 shaderFloat16;
VkBool32 shaderInt8;
} VkPhysicalDeviceShaderFloat16Int8FeaturesKHR;
Members
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to an extension-specific structure. -
shaderFloat16
indicates whether 16-bit floats (halfs) are supported in shader code. This also indicates whether shader modules can declare theFloat16
capability. However, this only enables a subset of the storage classes that SPIR-V allows for theFloat16
SPIR-V capability: Declaring and using 16-bit floats in thePrivate
,Workgroup
, andFunction
storage classes is enabled, while declaring them in the interface storage classes (e.g.,UniformConstant
,Uniform
,StorageBuffer
,Input
,Output
, andPushConstant
) is not enabled. -
shaderInt8
indicates whether 8-bit integers (signed and unsigned) are supported in shader code. This also indicates whether shader modules can declare theInt8
capability. However, this only enables a subset of the storage classes that SPIR-V allows for theInt8
SPIR-V capability: Declaring and using 8-bit integers in thePrivate
,Workgroup
, andFunction
storage classes is enabled, while declaring them in the interface storage classes (e.g.,UniformConstant
,Uniform
,StorageBuffer
,Input
,Output
, andPushConstant
) is not enabled.
Description
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) 2014-2019 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.