vkCmdCopyMemoryIndirectNV(3)

C Specification

To copy data between two memory regions by specifying copy parameters indirectly in a buffer, call:

// Provided by VK_NV_copy_memory_indirect
void vkCmdCopyMemoryIndirectNV(
    VkCommandBuffer                             commandBuffer,
    VkDeviceAddress                             copyBufferAddress,
    uint32_t                                    copyCount,
    uint32_t                                    stride);

Parameters

commandBuffer is the command buffer into which the command will be recorded.
copyBufferAddress is the buffer address specifying the copy parameters. This buffer is laid out in memory as an array of VkCopyMemoryIndirectCommandNV structures.
copyCount is the number of copies to execute, and can be zero.
stride is the stride in bytes between successive sets of copy parameters.

Description

Each region read from copyBufferAddress is copied from the source region to the specified destination region. The results are undefined if any of the source and destination regions overlap in memory.

Valid Usage

VUID-vkCmdCopyMemoryIndirectNV-None-07653
The indirectCopy feature must be enabled
VUID-vkCmdCopyMemoryIndirectNV-copyBufferAddress-07654
copyBufferAddress must be 4 byte aligned
VUID-vkCmdCopyMemoryIndirectNV-stride-07655
stride must be a multiple of 4 and must be greater than or equal to sizeof(VkCopyMemoryIndirectCommandNV)
VUID-vkCmdCopyMemoryIndirectNV-commandBuffer-07656
The VkCommandPool that commandBuffer was allocated from must support at least one of the VkPhysicalDeviceCopyMemoryIndirectPropertiesNV::supportedQueues

Valid Usage (Implicit)

VUID-vkCmdCopyMemoryIndirectNV-commandBuffer-parameter
commandBuffer must be a valid VkCommandBuffer handle
VUID-vkCmdCopyMemoryIndirectNV-commandBuffer-recording
commandBuffer must be in the recording state
VUID-vkCmdCopyMemoryIndirectNV-commandBuffer-cmdpool
The VkCommandPool that commandBuffer was allocated from must support transfer, graphics, or compute operations
VUID-vkCmdCopyMemoryIndirectNV-renderpass
This command must only be called outside of a render pass instance
VUID-vkCmdCopyMemoryIndirectNV-videocoding
This command must only be called outside of a video coding scope

Host Synchronization

Host access to commandBuffer must be externally synchronized
Host access to the VkCommandPool that commandBuffer was allocated from must be externally synchronized