VulkanHub
Enum

VkIndirectCommandsLayoutUsageFlagBitsEXT

Bitmask specifying allowed usage of an indirect commands layout

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

typedef enum VkIndirectCommandsLayoutUsageFlagBitsEXT {
    VK_INDIRECT_COMMANDS_LAYOUT_USAGE_EXPLICIT_PREPROCESS_BIT_EXT = 0x00000001,
    VK_INDIRECT_COMMANDS_LAYOUT_USAGE_UNORDERED_SEQUENCES_BIT_EXT = 0x00000002,
} VkIndirectCommandsLayoutUsageFlagBitsEXT;
  • VK_INDIRECT_COMMANDS_LAYOUT_USAGE_EXPLICIT_PREPROCESS_BIT_EXT specifies that the layout is always used with the manual preprocessing step through calling vkCmdPreprocessGeneratedCommandsEXT and executed by vkCmdExecuteGeneratedCommandsEXT with isPreprocessed set to VK_TRUE.
  • VK_INDIRECT_COMMANDS_LAYOUT_USAGE_UNORDERED_SEQUENCES_BIT_EXT specifies that the processing of sequences will happen at an implementation-dependent order, which is not guaranteed to be deterministic using the same input data. This flag is ignored when the shaderStages is VK_SHADER_STAGE_COMPUTE_BIT as it is implied that the dispatch sequence is always unordered.