C Specification

Bits which can be set in VkPresentTimingInfoEXT::flags, specifying options for how to interpret timing information:

// Provided by VK_EXT_present_timing
typedef enum VkPresentTimingInfoFlagBitsEXT {
    VK_PRESENT_TIMING_INFO_PRESENT_AT_RELATIVE_TIME_BIT_EXT = 0x00000001,
    VK_PRESENT_TIMING_INFO_PRESENT_AT_NEAREST_REFRESH_CYCLE_BIT_EXT = 0x00000002,
} VkPresentTimingInfoFlagBitsEXT;

Description

  • VK_PRESENT_TIMING_INFO_PRESENT_AT_RELATIVE_TIME_BIT_EXT specifies that VkPresentTimingInfoEXT::targetTime is to be interpreted as a relative time from the previous presentation’s VK_PRESENT_STAGE_IMAGE_FIRST_PIXEL_VISIBLE_BIT_EXT stage. If the swapchain has never been used to present an image, the provided targetTime is ignored.

  • VK_PRESENT_TIMING_INFO_PRESENT_AT_NEAREST_REFRESH_CYCLE_BIT_EXT specifies that the application would prefer the image to be presented earlier than the time specified in VkPresentTimingInfoEXT::targetTime if that time falls within the first half of a refresh cycle. In that case, the presentation engine may choose to display the image at the start of that refresh cycle.

See Also

VK_EXT_present_timing, VkPresentTimingInfoFlagsEXT

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 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0