VK_EXT_shader_atomic_float

Other Extension Metadata

Last Modified Date

2020-07-15

IP Status

No known IP claims.

Interactions and External Dependencies

• This extension provides API support for GL_EXT_shader_atomic_float

Contributors

• Vikram Kushwaha, NVIDIA
• Jeff Bolz, NVIDIA

Description

This extension allows a shader to contain floating-point atomic operations on buffer, workgroup, and image memory. It also advertises the SPIR-V AtomicFloat32AddEXT and AtomicFloat64AddEXT capabilities that allows atomic addition on floating-points numbers. The supported operations include OpAtomicFAddEXT, OpAtomicExchange, OpAtomicLoad and OpAtomicStore.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceShaderAtomicFloatFeaturesEXT

New Enum Constants

• VK_EXT_SHADER_ATOMIC_FLOAT_EXTENSION_NAME
• VK_EXT_SHADER_ATOMIC_FLOAT_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_ATOMIC_FLOAT_FEATURES_EXT

New SPIR-V Capabilities

• AtomicFloat32AddEXT
• AtomicFloat64AddEXT

Version History

• Revision 1, 2020-07-15 (Vikram Kushwaha)
  • Internal revisions