vkCmdEndTransformFeedback2EXT(3)

C Specification

Transform feedback for specific transform feedback buffers is made inactive by calling:

// Provided by VK_KHR_device_address_commands with VK_EXT_transform_feedback
void vkCmdEndTransformFeedback2EXT(
    VkCommandBuffer                             commandBuffer,
    uint32_t                                    firstCounterRange,
    uint32_t                                    counterRangeCount,
    const VkBindTransformFeedbackBuffer2InfoEXT* pCounterInfos);

Parameters

commandBuffer is the command buffer into which the command is recorded.
firstCounterBuffer is the index of the first transform feedback buffer corresponding to pCounterInfos[0].
counterRangeCount is the size of the pCounterInfos array.
pCounterInfos is NULL or a pointer to an array of VkBindTransformFeedbackBuffer2InfoEXT structures defining memory ranges used to write counters used to later resume transform feedback.

Description

If pCounterInfos is NULL, it is equivalent to an array of VkBindTransformFeedbackBuffer2InfoEXT structures with each element having a addressRange.size of 0.

If the addressRange.size of an element of pCounterInfos at index i is 0, no data is written to the address range. If the addressRange.size of an element of pCounterInfos at index i is not 0, the byte offset, where the next vertex data would be written to in the transform feedback buffer at a binding equal to the sum of i and firstCounterBuffer, is written to that range’s address.

Valid Usage

VUID-vkCmdEndTransformFeedback2EXT-transformFeedback-02374
VkPhysicalDeviceTransformFeedbackFeaturesEXT::transformFeedback must be enabled
VUID-vkCmdEndTransformFeedback2EXT-None-02375
Transform feedback must be active
VUID-vkCmdEndTransformFeedback2EXT-firstCounterBuffer-02376
firstCounterBuffer must be less than VkPhysicalDeviceTransformFeedbackPropertiesEXT::maxTransformFeedbackBuffers
VUID-vkCmdEndTransformFeedback2EXT-firstCounterBuffer-02377
The sum of firstCounterBuffer and counterRangeCount must be less than or equal to VkPhysicalDeviceTransformFeedbackPropertiesEXT::maxTransformFeedbackBuffers
VUID-vkCmdEndTransformFeedback2EXT-None-10657
This command must not be recorded when per-tile execution model is enabled

VUID-vkCmdEndTransformFeedback2EXT-pCounterInfos-13095
Each element of pCounterInfos must have a addressRange.size that is either 0 or greater than or equal to 4
VUID-vkCmdEndTransformFeedback2EXT-pCounterInfos-13096
For each element of pCounterInfos with a non-zero address, the buffer the address was queried from must have been created with the VK_BUFFER_USAGE_TRANSFORM_FEEDBACK_COUNTER_BUFFER_BIT_EXT usage flag set

Valid Usage (Implicit)

VUID-vkCmdEndTransformFeedback2EXT-commandBuffer-parameter
commandBuffer must be a valid VkCommandBuffer handle
VUID-vkCmdEndTransformFeedback2EXT-pCounterInfos-parameter
If counterRangeCount is not 0, and pCounterInfos is not NULL, pCounterInfos must be a valid pointer to an array of counterRangeCount valid VkBindTransformFeedbackBuffer2InfoEXT structures
VUID-vkCmdEndTransformFeedback2EXT-commandBuffer-recording
commandBuffer must be in the recording state
VUID-vkCmdEndTransformFeedback2EXT-commandBuffer-cmdpool
The VkCommandPool that commandBuffer was allocated from must support VK_QUEUE_GRAPHICS_BIT operations
VUID-vkCmdEndTransformFeedback2EXT-renderpass
This command must only be called inside of a render pass instance
VUID-vkCmdEndTransformFeedback2EXT-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