include::meta/VK_NV_device_diagnostic_checkpoints.txt[]

*Last Modified Date*::
    2018-07-16
*Contributors*::
  - Oleg Kuznetsov, NVIDIA
  - Alex Dunn, NVIDIA
  - Jeff Bolz, NVIDIA
  - Eric Werness, NVIDIA
  - Daniel Koch, NVIDIA


This extension allows applications to insert markers in the command stream
and associate them with custom data.

If a device lost error occurs, the application may: then query the
implementation for the last markers to cross specific implementation-defined
pipeline stages, in order to narrow down which commands were executing at
the time and might have caused the failure.


=== New Object Types

None.

=== New Enum Constants

Extending elink:VkStructureType:

  * ename:VK_STRUCTURE_TYPE_CHECKPOINT_DATA_NV
  * ename:VK_STRUCTURE_TYPE_QUEUE_FAMILY_CHECKPOINT_PROPERTIES_NV

=== New Enums

None.

=== New Structures

  * slink:VkCheckpointDataNV
  * slink:VkQueueFamilyCheckpointPropertiesNV

=== New Functions

  * flink:vkCmdSetCheckpointNV
  * flink:vkGetQueueCheckpointDataNV

=== Issues

None yet!


=== Version History

  * Revision 1, 2018-07-16 (Nuno Subtil)
    - Internal revisions