VK_OHOS_external_memory

Other Extension Metadata

Last Modified Date

2025-11-4

IP Status

No known IP claims.

Contributors

• Weilan Chen, Huawei
• Zeihui Lin, Huawei
• Bill Hollings, Huawei
• Pan Gao, Huawei
• Yang Shi, Huawei

Description

This extension enables an application to: import Open Harmony OS OH_NativeBuffer objects created outside of Vulkan device into Vulkan memory objects, where they can be bound to images and buffers. It also allows an application to obtain the properties of OH_NativeBuffer object.

New Base Types

• OH_NativeBuffer

New Commands

• vkGetMemoryNativeBufferOHOS
• vkGetNativeBufferPropertiesOHOS

New Structures

• VkMemoryGetNativeBufferInfoOHOS
• VkNativeBufferPropertiesOHOS
• Extending VkImageCreateInfo, VkSamplerYcbcrConversionCreateInfo, VkAttachmentDescription2, VkGraphicsPipelineCreateInfo, VkCommandBufferInheritanceInfo:
  • VkExternalFormatOHOS
• Extending VkImageFormatProperties2:
  • VkNativeBufferUsageOHOS
• Extending VkMemoryAllocateInfo:
  • VkImportNativeBufferInfoOHOS
• Extending VkNativeBufferPropertiesOHOS:
  • VkNativeBufferFormatPropertiesOHOS

New Enum Constants

• VK_OHOS_EXTERNAL_MEMORY_EXTENSION_NAME
• VK_OHOS_EXTERNAL_MEMORY_SPEC_VERSION
• Extending VkExternalMemoryHandleTypeFlagBits:
  • VK_EXTERNAL_MEMORY_HANDLE_TYPE_OH_NATIVE_BUFFER_BIT_OHOS
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_EXTERNAL_FORMAT_OHOS
  • VK_STRUCTURE_TYPE_IMPORT_NATIVE_BUFFER_INFO_OHOS
  • VK_STRUCTURE_TYPE_MEMORY_GET_NATIVE_BUFFER_INFO_OHOS
  • VK_STRUCTURE_TYPE_NATIVE_BUFFER_FORMAT_PROPERTIES_OHOS
  • VK_STRUCTURE_TYPE_NATIVE_BUFFER_PROPERTIES_OHOS
  • VK_STRUCTURE_TYPE_NATIVE_BUFFER_USAGE_OHOS

Version History

• Revision 1, 2025-11-4 (Weilan Chen)
  • Change Extension number to 453, which is donated by ARM.