Contact
- 
Mike Gorchak [GitHub]mgorchak-blackberry 
- 
Aaron Ruby [GitHub]aruby-blackberry 
Other Extension Metadata
- Last Modified Date
- 
2023-05-17 
- IP Status
- 
No known IP claims. 
- Contributors
- 
- 
Mike Gorchak, QNX / Blackberry Limited 
- 
Aaron Ruby, QNX / Blackberry Limited 
 
- 
Description
This extension enables an application to import QNX Screen
_screen_buffer objects created outside of the Vulkan device into Vulkan
memory objects, where they can be bound to images and buffers.
Some _screen_buffer images have implementation-defined external
formats that may not correspond to Vulkan formats.
Sampler Y′CBCR conversion can be used to sample from these images and
convert them to a known color space.
_screen_buffer is strongly typed, so naming the handle type is
redundant.
The internal layout and therefore size of a _screen_buffer image may
depend on native usage flags that do not have corresponding Vulkan
counterparts.
New Structures
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Extending VkImageCreateInfo, VkSamplerYcbcrConversionCreateInfo: 
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Extending VkMemoryAllocateInfo: 
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Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo: 
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Extending VkScreenBufferPropertiesQNX: 
New Enum Constants
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VK_QNX_EXTERNAL_MEMORY_SCREEN_BUFFER_EXTENSION_NAME
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VK_QNX_EXTERNAL_MEMORY_SCREEN_BUFFER_SPEC_VERSION
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Extending VkExternalMemoryHandleTypeFlagBits: - 
VK_EXTERNAL_MEMORY_HANDLE_TYPE_SCREEN_BUFFER_BIT_QNX
 
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Extending VkStructureType: - 
VK_STRUCTURE_TYPE_EXTERNAL_FORMAT_QNX
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VK_STRUCTURE_TYPE_IMPORT_SCREEN_BUFFER_INFO_QNX
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VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_MEMORY_SCREEN_BUFFER_FEATURES_QNX
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VK_STRUCTURE_TYPE_SCREEN_BUFFER_FORMAT_PROPERTIES_QNX
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VK_STRUCTURE_TYPE_SCREEN_BUFFER_PROPERTIES_QNX
 
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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.