C Specification
To query features additionally supported by the
VK_KHR_shader_float16_int8
extension, call
vkGetPhysicalDeviceFeatures2KHR with a
VkPhysicalDeviceShaderFloat16Int8Features
structure included in the
pNext
chain.
The VkPhysicalDeviceShaderFloat16Int8Features
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 VkPhysicalDeviceShaderFloat16Int8Features
structure is defined as:
// Provided by VK_VERSION_1_2
typedef struct VkPhysicalDeviceShaderFloat16Int8Features {
VkStructureType sType;
void* pNext;
VkBool32 shaderFloat16;
VkBool32 shaderInt8;
} VkPhysicalDeviceShaderFloat16Int8Features;
or the equivalent
// Provided by VK_KHR_shader_float16_int8
typedef VkPhysicalDeviceShaderFloat16Int8Features VkPhysicalDeviceShaderFloat16Int8FeaturesKHR;
Members
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure.
Description
-
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.
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.