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include::meta/VK_EXT_buffer_device_address.txt[]
*Last Modified Date*::
2019-01-06
*IP Status*::
No known IP claims.
*Contributors*::
- Jeff Bolz, NVIDIA
- Neil Henning, AMD
- Tobias Hector, AMD
- Jason Ekstrand, Intel
- Baldur Karlsson, Valve
This extension allows the application to query a 64-bit buffer device
address value for a buffer, which can be used to access the buffer memory
via the code:PhysicalStorageBufferEXT storage class in the
https://github.com/KhronosGroup/GLSL/blob/master/extensions/ext/GLSL_EXT_buffer_reference.txt[`GL_EXT_buffer_reference`]
GLSL extension and
http://htmlpreview.github.io/?https://github.com/KhronosGroup/SPIRV-Registry/blob/master/extensions/EXT/SPV_EXT_physical_storage_buffer.html[`SPV_EXT_physical_storage_buffer`]
SPIR-V extension.
It also allows buffer device addresses to be provided by a trace replay
tool, so that it matches the address used when the trace was captured.
=== New Object Types
None
=== New Enum Constants
* Extending elink:VkStructureType:
** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_BUFFER_DEVICE_ADDRESS_FEATURES_EXT
** ename:VK_STRUCTURE_TYPE_BUFFER_DEVICE_ADDRESS_INFO_EXT
** ename:VK_STRUCTURE_TYPE_BUFFER_DEVICE_ADDRESS_CREATE_INFO_EXT
* Extending elink:VkBufferUsageFlagBits:
** ename:VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_EXT
* Extending elink:VkBufferCreateFlagBits:
** ename:VK_BUFFER_CREATE_DEVICE_ADDRESS_CAPTURE_REPLAY_BIT_EXT
* Extending elink:VkResult:
** ename:VK_ERROR_INVALID_DEVICE_ADDRESS_EXT
=== New Enums
None
=== New Structures
* slink:VkPhysicalDeviceBufferDeviceAddressFeaturesEXT
* slink:VkBufferDeviceAddressInfoEXT
* slink:VkBufferDeviceAddressCreateInfoEXT
=== New Functions
* flink:vkGetBufferDeviceAddressEXT
=== New Built-In Variables
None
=== New SPIR-V Capabilities
* <<spirvenv-capabilities-table-physicalstoragebufferaddresses,code:PhysicalStorageBufferAddressesEXT>>
=== Issues
None
=== Version History
* Revision 1, 2018-11-01 (Jeff Bolz)
- Internal revisions
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