vkCmdWriteBufferMarkerAMD(3)

C Specification

To write a 32-bit marker value into a buffer as a pipelined operation, call:

// Provided by VK_AMD_buffer_marker
void vkCmdWriteBufferMarkerAMD(
    VkCommandBuffer                             commandBuffer,
    VkPipelineStageFlagBits                     pipelineStage,
    VkBuffer                                    dstBuffer,
    VkDeviceSize                                dstOffset,
    uint32_t                                    marker);

Parameters

commandBuffer is the command buffer into which the command will be recorded.
pipelineStage is a VkPipelineStageFlagBits value specifying the pipeline stage whose completion triggers the marker write.
dstBuffer is the buffer where the marker will be written to.
dstOffset is the byte offset into the buffer where the marker will be written to.
marker is the 32-bit value of the marker.

Description

When vkCmdWriteBufferMarkerAMD is submitted to a queue, it defines an execution dependency between prior operations and writing the marker value, as well as a memory dependency from earlier buffer marker write commands.

The first synchronization scope includes operations performed by operations that occur earlier in submission order in the pipeline stage identified by pipelineStage. It additionally includes other buffer marker write commands that occur earlier in submission order that specified either the same pipelineStage or a stage that is logically earlier.

The second synchronization scope includes only the buffer marker write.

The first access scope includes only accesses performed by other buffer marker write commands.

The second access scope is empty.

The access scope for buffer marker writes falls under the VK_ACCESS_TRANSFER_WRITE_BIT flag, and is performed by either pipelineStage or VK_PIPELINE_STAGE_TRANSFER_BIT. Synchronization commands should specify this access flag and both pipeline stages when defining dependencies with this command.

Note	Similar to `vkCmdWriteTimestamp`, if an implementation is unable to write a marker at any specific pipeline stage, it may instead do so at any logically later stage.

Note	Implementations may only support a limited number of pipelined marker write operations in flight at a given time, thus excessive number of marker write operations may degrade command execution performance.

Valid Usage

VUID-vkCmdWriteBufferMarkerAMD-pipelineStage-04074
pipelineStage must be a valid stage for the queue family that was used to create the command pool that commandBuffer was allocated from
VUID-vkCmdWriteBufferMarkerAMD-pipelineStage-04075
If the geometryShader feature is not enabled, pipelineStage must not be VK_PIPELINE_STAGE_GEOMETRY_SHADER_BIT
VUID-vkCmdWriteBufferMarkerAMD-pipelineStage-04076
If the tessellationShader feature is not enabled, pipelineStage must not be VK_PIPELINE_STAGE_TESSELLATION_CONTROL_SHADER_BIT or VK_PIPELINE_STAGE_TESSELLATION_EVALUATION_SHADER_BIT
VUID-vkCmdWriteBufferMarkerAMD-pipelineStage-04077
If the conditionalRendering feature is not enabled, pipelineStage must not be VK_PIPELINE_STAGE_CONDITIONAL_RENDERING_BIT_EXT
VUID-vkCmdWriteBufferMarkerAMD-pipelineStage-04078
If the fragmentDensityMap feature is not enabled, pipelineStage must not be VK_PIPELINE_STAGE_FRAGMENT_DENSITY_PROCESS_BIT_EXT
VUID-vkCmdWriteBufferMarkerAMD-pipelineStage-04079
If the transformFeedback feature is not enabled, pipelineStage must not be VK_PIPELINE_STAGE_TRANSFORM_FEEDBACK_BIT_EXT
VUID-vkCmdWriteBufferMarkerAMD-pipelineStage-04080
If the meshShader feature is not enabled, pipelineStage must not be VK_PIPELINE_STAGE_MESH_SHADER_BIT_EXT
VUID-vkCmdWriteBufferMarkerAMD-pipelineStage-07077
If the taskShader feature is not enabled, pipelineStage must not be VK_PIPELINE_STAGE_TASK_SHADER_BIT_EXT
VUID-vkCmdWriteBufferMarkerAMD-shadingRateImage-07314
If neither of the shadingRateImage or the attachmentFragmentShadingRate features are enabled, pipelineStage must not be VK_PIPELINE_STAGE_FRAGMENT_SHADING_RATE_ATTACHMENT_BIT_KHR
VUID-vkCmdWriteBufferMarkerAMD-synchronization2-06489
If the synchronization2 feature is not enabled, pipelineStage must not be VK_PIPELINE_STAGE_NONE
VUID-vkCmdWriteBufferMarkerAMD-rayTracingPipeline-07943
If neither of the VK_NV_ray_tracing extension or the rayTracingPipeline feature are enabled, pipelineStage must not be VK_PIPELINE_STAGE_RAY_TRACING_SHADER_BIT_KHR
VUID-vkCmdWriteBufferMarkerAMD-dstOffset-01798
dstOffset must be less than or equal to the size of dstBuffer minus 4
VUID-vkCmdWriteBufferMarkerAMD-dstBuffer-01799
dstBuffer must have been created with VK_BUFFER_USAGE_TRANSFER_DST_BIT usage flag
VUID-vkCmdWriteBufferMarkerAMD-dstBuffer-01800
If dstBuffer is non-sparse then it must be bound completely and contiguously to a single VkDeviceMemory object
VUID-vkCmdWriteBufferMarkerAMD-dstOffset-01801
dstOffset must be a multiple of 4

Valid Usage (Implicit)

VUID-vkCmdWriteBufferMarkerAMD-commandBuffer-parameter
commandBuffer must be a valid VkCommandBuffer handle
VUID-vkCmdWriteBufferMarkerAMD-pipelineStage-parameter
If pipelineStage is not 0, pipelineStage must be a valid VkPipelineStageFlagBits value
VUID-vkCmdWriteBufferMarkerAMD-dstBuffer-parameter
dstBuffer must be a valid VkBuffer handle
VUID-vkCmdWriteBufferMarkerAMD-commandBuffer-recording
commandBuffer must be in the recording state
VUID-vkCmdWriteBufferMarkerAMD-commandBuffer-cmdpool
The VkCommandPool that commandBuffer was allocated from must support VK_QUEUE_COMPUTE_BIT, VK_QUEUE_GRAPHICS_BIT, or VK_QUEUE_TRANSFER_BIT operations
VUID-vkCmdWriteBufferMarkerAMD-videocoding
This command must only be called outside of a video coding scope
VUID-vkCmdWriteBufferMarkerAMD-commonparent
Both of commandBuffer, and dstBuffer must have been created, allocated, or retrieved from the same VkDevice

Host Synchronization

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