Contact
- 
Shahbaz Youssefi [GitHub]syoussefi 
Other Extension Metadata
- Last Modified Date
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2025-03-31 
- Contributors
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James Jones, NVIDIA 
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Jeff Juliano, NVIDIA 
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Shahbaz Youssefi, Google 
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Chris Forbes, Google 
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Ian Elliott, Google 
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Yiwei Zhang, Google 
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Charlie Lao, Google 
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Chad Versace, Google 
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Ralph Potter, Samsung 
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Igor Nazarov, Samsung 
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Hyunchang Kim, Samsung 
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Suenghwan Lee, Samsung 
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Munseong Kang, Samsung 
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Joonyong Park, Samsung 
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Hans-Kristian Arntzen, Valve 
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Lisa Wu, Arm 
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Daniel Stone, Collabora 
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Pan Gao, Huawei 
 
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Description
This extension is based off the VK_EXT_swapchain_maintenance1
extension.
VK_KHR_swapchain_maintenance1 adds a collection of window system
integration features that were intentionally left out or overlooked in the
original VK_KHR_swapchain extension.
The new features are as follows:
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Specify a fence that will be signaled when the resources associated with a present operation can be safely destroyed. 
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Allow changing the present mode a swapchain is using at per-present granularity. 
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Allow applications to define the behavior when presenting a swapchain image to a surface with different dimensions than the image. Using this feature may allow implementations to avoid returning VK_ERROR_OUT_OF_DATE_KHRin this situation.
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Allow applications to defer swapchain memory allocation for improved startup time and memory footprint. 
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Allow applications to release previously acquired images without presenting them. 
New Structures
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Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo: 
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Extending VkPresentInfoKHR: 
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Extending VkSwapchainCreateInfoKHR: 
New Enum Constants
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VK_KHR_SWAPCHAIN_MAINTENANCE_1_EXTENSION_NAME
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VK_KHR_SWAPCHAIN_MAINTENANCE_1_SPEC_VERSION
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Extending VkStructureType: - 
VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SWAPCHAIN_MAINTENANCE_1_FEATURES_KHR
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VK_STRUCTURE_TYPE_RELEASE_SWAPCHAIN_IMAGES_INFO_KHR
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VK_STRUCTURE_TYPE_SWAPCHAIN_PRESENT_FENCE_INFO_KHR
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VK_STRUCTURE_TYPE_SWAPCHAIN_PRESENT_MODES_CREATE_INFO_KHR
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VK_STRUCTURE_TYPE_SWAPCHAIN_PRESENT_MODE_INFO_KHR
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VK_STRUCTURE_TYPE_SWAPCHAIN_PRESENT_SCALING_CREATE_INFO_KHR
 
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Extending VkSwapchainCreateFlagBitsKHR: - 
VK_SWAPCHAIN_CREATE_DEFERRED_MEMORY_ALLOCATION_BIT_KHR
 
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Document Notes
For more information, see the Vulkan Specification
This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.