C Specification

Bits which can be set in VkIndirectCommandsLayoutCreateInfoNV::flags, specifying usage hints of an indirect command layout, are:

// Provided by VK_NV_device_generated_commands
typedef enum VkIndirectCommandsLayoutUsageFlagBitsNV {
    VK_INDIRECT_COMMANDS_LAYOUT_USAGE_EXPLICIT_PREPROCESS_BIT_NV = 0x00000001,
    VK_INDIRECT_COMMANDS_LAYOUT_USAGE_INDEXED_SEQUENCES_BIT_NV = 0x00000002,
    VK_INDIRECT_COMMANDS_LAYOUT_USAGE_UNORDERED_SEQUENCES_BIT_NV = 0x00000004,
} VkIndirectCommandsLayoutUsageFlagBitsNV;

Description

  • VK_INDIRECT_COMMANDS_LAYOUT_USAGE_EXPLICIT_PREPROCESS_BIT_NV specifies that the layout is always used with the manual preprocessing step through calling vkCmdPreprocessGeneratedCommandsNV and executed by vkCmdExecuteGeneratedCommandsNV with isPreprocessed set to VK_TRUE.

  • VK_INDIRECT_COMMANDS_LAYOUT_USAGE_INDEXED_SEQUENCES_BIT_NV specifies that the input data for the sequences is not implicitly indexed from 0..sequencesUsed but a user provided VkBuffer encoding the index is provided.

  • VK_INDIRECT_COMMANDS_LAYOUT_USAGE_UNORDERED_SEQUENCES_BIT_NV specifies that the processing of sequences can happen at an implementation-dependent order, which is not: guaranteed to be coherent using the same input data. This flag is ignored when the pipelineBindPoint is VK_PIPELINE_BIND_POINT_COMPUTE as it is implied that the dispatch sequence is always unordered.

See Also

VK_NV_device_generated_commands, VkIndirectCommandsLayoutUsageFlagsNV

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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0