Package org.lwjgl.vulkan

Class EXTExternalMemoryHost

java.lang.Object

org.lwjgl.vulkan.EXTExternalMemoryHost

public class EXTExternalMemoryHost
extends java.lang.Object

This extension enables an application to import host allocations and host mapped foreign device memory to Vulkan memory objects.

Name String

VK_EXT_external_memory_host

Extension Type

Device extension

Registered Extension Number

179

Revision

1

Extension and Version Dependencies

• Requires Vulkan 1.0
• Requires VK_KHR_external_memory

Contact

• Daniel Rakos drakos-amd

Last Modified Date

2017-11-10

IP Status

No known IP claims.

Contributors

• Jaakko Konttinen, AMD
• David Mao, AMD
• Daniel Rakos, AMD
• Tobias Hector, Imagination Technologies
• Jason Ekstrand, Intel
• James Jones, NVIDIA

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	VK_EXT_EXTERNAL_MEMORY_HOST_EXTENSION_NAME	The extension name.
static int	VK_EXT_EXTERNAL_MEMORY_HOST_SPEC_VERSION	The extension specification version.
static int	VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_MAPPED_FOREIGN_MEMORY_BIT_EXT	Extends VkExternalMemoryHandleTypeFlagBits.
static int	VK_STRUCTURE_TYPE_IMPORT_MEMORY_HOST_POINTER_INFO_EXT VK_STRUCTURE_TYPE_MEMORY_HOST_POINTER_PROPERTIES_EXT VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_MEMORY_HOST_PROPERTIES_EXT	Extends VkStructureType.

Method Summary

Modifier and Type	Method	Description
static int	nvkGetMemoryHostPointerPropertiesEXT(VkDevice device, int handleType, long pHostPointer, long pMemoryHostPointerProperties)	Unsafe version of: GetMemoryHostPointerPropertiesEXT
static int	vkGetMemoryHostPointerPropertiesEXT(VkDevice device, int handleType, long pHostPointer, VkMemoryHostPointerPropertiesEXT pMemoryHostPointerProperties)	Get properties of external memory host pointer.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VK_EXT_EXTERNAL_MEMORY_HOST_SPEC_VERSION

The extension specification version.

VK_EXT_EXTERNAL_MEMORY_HOST_EXTENSION_NAME

The extension name.

VK_STRUCTURE_TYPE_IMPORT_MEMORY_HOST_POINTER_INFO_EXT, VK_STRUCTURE_TYPE_MEMORY_HOST_POINTER_PROPERTIES_EXT, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_MEMORY_HOST_PROPERTIES_EXT

Extends VkStructureType.

Enum values:

• STRUCTURE_TYPE_IMPORT_MEMORY_HOST_POINTER_INFO_EXT
• STRUCTURE_TYPE_MEMORY_HOST_POINTER_PROPERTIES_EXT
• STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_MEMORY_HOST_PROPERTIES_EXT

VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT, VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_MAPPED_FOREIGN_MEMORY_BIT_EXT

Extends VkExternalMemoryHandleTypeFlagBits.

Enum values:

• EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT
• EXTERNAL_MEMORY_HANDLE_TYPE_HOST_MAPPED_FOREIGN_MEMORY_BIT_EXT

Method Detail

nvkGetMemoryHostPointerPropertiesEXT

public static int nvkGetMemoryHostPointerPropertiesEXT(VkDevice device,
                                                       int handleType,
                                                       long pHostPointer,
                                                       long pMemoryHostPointerProperties)

Unsafe version of: GetMemoryHostPointerPropertiesEXT

vkGetMemoryHostPointerPropertiesEXT

public static int vkGetMemoryHostPointerPropertiesEXT(VkDevice device,
                                                      int handleType,
                                                      long pHostPointer,
                                                      VkMemoryHostPointerPropertiesEXT pMemoryHostPointerProperties)

Get properties of external memory host pointer.

C Specification

To determine the correct parameters to use when importing host pointers, call:

 VkResult vkGetMemoryHostPointerPropertiesEXT(
     VkDevice                                    device,
     VkExternalMemoryHandleTypeFlagBits          handleType,
     const void*                                 pHostPointer,
     VkMemoryHostPointerPropertiesEXT*           pMemoryHostPointerProperties);

Valid Usage

• handleType must be EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT or EXTERNAL_MEMORY_HANDLE_TYPE_HOST_MAPPED_FOREIGN_MEMORY_BIT_EXT
• pHostPointer must be a pointer aligned to an integer multiple of VkPhysicalDeviceExternalMemoryHostPropertiesEXT::minImportedHostPointerAlignment
• If handleType is EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT, pHostPointer must be a pointer to host memory
• If handleType is EXTERNAL_MEMORY_HANDLE_TYPE_HOST_MAPPED_FOREIGN_MEMORY_BIT_EXT, pHostPointer must be a pointer to host mapped foreign memory

Valid Usage (Implicit)

• device must be a valid VkDevice handle
• handleType must be a valid VkExternalMemoryHandleTypeFlagBits value
• pMemoryHostPointerProperties must be a valid pointer to a VkMemoryHostPointerPropertiesEXT structure

Return Codes

On success, this command returns

• SUCCESS

On failure, this command returns

• ERROR_INVALID_EXTERNAL_HANDLE

See Also

VkMemoryHostPointerPropertiesEXT

Parameters:

device - the logical device that will be importing pHostPointer.

handleType - the type of the handle pHostPointer.

pHostPointer - the host pointer to import from.

pMemoryHostPointerProperties - a pointer to a VkMemoryHostPointerPropertiesEXT structure in which the host pointer properties are returned.