vkCmdExecuteGeneratedCommandsNV - Performs the generation and execution of commands on the device

Parameters

• commandBuffer is the command buffer into which the command is recorded.

• isPreprocessed represents whether the input data has already been preprocessed on the device. If it is FALSE this command will implicitly trigger the preprocessing step, otherwise not.
• pGeneratedCommandsInfo is a pointer to an instance of the GeneratedCommandsInfoNV structure containing parameters affecting the generation of commands.

Valid Usage

• [[VUID-{refpage}-None-02690]] If a ImageView is sampled with FILTER_LINEAR as a result of this command, then the image view’s format features must contain FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT

• [[VUID-{refpage}-None-02691]] If a ImageView is accessed using atomic operations as a result of this command, then the image view’s format features must contain FORMAT_FEATURE_STORAGE_IMAGE_ATOMIC_BIT
• [[VUID-{refpage}-None-02692]] If a ImageView is sampled with FILTER_CUBIC_EXT as a result of this command, then the image view’s format features must contain FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_CUBIC_BIT_EXT
• [[VUID-{refpage}-filterCubic-02694]] Any ImageView being sampled with FILTER_CUBIC_EXT as a result of this command must have a ImageViewType and format that supports cubic filtering, as specified by FilterCubicImageViewImageFormatPropertiesEXT::filterCubic returned by getPhysicalDeviceImageFormatProperties2
• [[VUID-{refpage}-filterCubicMinmax-02695]] Any ImageView being sampled with FILTER_CUBIC_EXT with a reduction mode of either SAMPLER_REDUCTION_MODE_MIN or SAMPLER_REDUCTION_MODE_MAX as a result of this command must have a ImageViewType and format that supports cubic filtering together with minmax filtering, as specified by FilterCubicImageViewImageFormatPropertiesEXT::filterCubicMinmax returned by getPhysicalDeviceImageFormatProperties2
• [[VUID-{refpage}-flags-02696]] Any Image created with a ImageCreateInfo::flags containing IMAGE_CREATE_CORNER_SAMPLED_BIT_NV sampled as a result of this command must only be sampled using a SamplerAddressMode of SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE
• [[VUID-{refpage}-None-02697]] For each set n that is statically used by the Pipeline bound to the pipeline bind point used by this command, a descriptor set must have been bound to n at the same pipeline bind point, with a PipelineLayout that is compatible for set n, with the PipelineLayout used to create the current Pipeline, as described in ???
• [[VUID-{refpage}-None-02698]] For each push constant that is statically used by the Pipeline bound to the pipeline bind point used by this command, a push constant value must have been set for the same pipeline bind point, with a PipelineLayout that is compatible for push constants, with the PipelineLayout used to create the current Pipeline, as described in ???
• [[VUID-{refpage}-None-02699]] Descriptors in each bound descriptor set, specified via cmdBindDescriptorSets, must be valid if they are statically used by the Pipeline bound to the pipeline bind point used by this command
• [[VUID-{refpage}-None-02700]] A valid pipeline must be bound to the pipeline bind point used by this command
• [[VUID-{refpage}-commandBuffer-02701]] If the Pipeline object bound to the pipeline bind point used by this command requires any dynamic state, that state must have been set for commandBuffer, and done so after any previously bound pipeline with the corresponding state not specified as dynamic
• [[VUID-{refpage}-None-02859]] There must not have been any calls to dynamic state setting commands for any state not specified as dynamic in the Pipeline object bound to the pipeline bind point used by this command, since that pipeline was bound
• [[VUID-{refpage}-None-02702]] If the Pipeline object bound to the pipeline bind point used by this command accesses a Sampler object that uses unnormalized coordinates, that sampler must not be used to sample from any Image with a ImageView of the type IMAGE_VIEW_TYPE_3D, IMAGE_VIEW_TYPE_CUBE, IMAGE_VIEW_TYPE_1D_ARRAY, IMAGE_VIEW_TYPE_2D_ARRAY or IMAGE_VIEW_TYPE_CUBE_ARRAY, in any shader stage
• [[VUID-{refpage}-None-02703]] If the Pipeline object bound to the pipeline bind point used by this command accesses a Sampler object that uses unnormalized coordinates, that sampler must not be used with any of the SPIR-V OpImageSample* or OpImageSparseSample* instructions with ImplicitLod, Dref or Proj in their name, in any shader stage
• [[VUID-{refpage}-None-02704]] If the Pipeline object bound to the pipeline bind point used by this command accesses a Sampler object that uses unnormalized coordinates, that sampler must not be used with any of the SPIR-V OpImageSample* or OpImageSparseSample* instructions that includes a LOD bias or any offset values, in any shader stage
• [[VUID-{refpage}-None-02705]] If the robust buffer access feature is not enabled, and if the Pipeline object bound to the pipeline bind point used by this command accesses a uniform buffer, it must not access values outside of the range of the buffer as specified in the descriptor set bound to the same pipeline bind point
• [[VUID-{refpage}-None-02706]] If the robust buffer access feature is not enabled, and if the Pipeline object bound to the pipeline bind point used by this command accesses a storage buffer, it must not access values outside of the range of the buffer as specified in the descriptor set bound to the same pipeline bind point
• [[VUID-{refpage}-commandBuffer-02707]] If commandBuffer is an unprotected command buffer, any resource accessed by the Pipeline object bound to the pipeline bind point used by this command must not be a protected resource
• [[VUID-{refpage}-renderPass-02684]] The current render pass must be compatible with the renderPass member of the GraphicsPipelineCreateInfo structure specified when creating the Pipeline bound to PIPELINE_BIND_POINT_GRAPHICS
• [[VUID-{refpage}-subpass-02685]] The subpass index of the current render pass must be equal to the subpass member of the GraphicsPipelineCreateInfo structure specified when creating the Pipeline bound to PIPELINE_BIND_POINT_GRAPHICS
• [[VUID-{refpage}-None-02686]] Every input attachment used by the current subpass must be bound to the pipeline via a descriptor set
• [[VUID-{refpage}-None-02687]] Image subresources used as attachments in the current render pass must not be accessed in any way other than as an attachment by this command
• [[VUID-{refpage}-maxMultiviewInstanceIndex-02688]] If the draw is recorded in a render pass instance with multiview enabled, the maximum instance index must be less than or equal to PhysicalDeviceMultiviewProperties::maxMultiviewInstanceIndex
• [[VUID-{refpage}-sampleLocationsEnable-02689]] If the bound graphics pipeline was created with PipelineSampleLocationsStateCreateInfoEXT::sampleLocationsEnable set to TRUE and the current subpass has a depth/stencil attachment, then that attachment must have been created with the IMAGE_CREATE_SAMPLE_LOCATIONS_COMPATIBLE_DEPTH_BIT_EXT bit set
• [[VUID-{refpage}-None-04007]] All vertex input bindings accessed via vertex input variables declared in the vertex shader entry point’s interface must have either valid or NULL_HANDLE buffers bound
• [[VUID-{refpage}-None-04008]] If the nullDescriptor feature is not enabled, all vertex input bindings accessed via vertex input variables declared in the vertex shader entry point’s interface must not be NULL_HANDLE
• [[VUID-{refpage}-None-02721]] For a given vertex buffer binding, any attribute data fetched must be entirely contained within the corresponding vertex buffer binding, as described in ???
• commandBuffer must not be a protected command buffer
• If isPreprocessed is TRUE then cmdPreprocessGeneratedCommandsNV must have already been executed on the device, using the same pGeneratedCommandsInfo content as well as the content of the input buffers it references (all except GeneratedCommandsInfoNV::preprocessBuffer). Furthermore pGeneratedCommandsInfo`s indirectCommandsLayout must have been created with the INDIRECT_COMMANDS_LAYOUT_USAGE_EXPLICIT_PREPROCESS_BIT_NV bit set
• GeneratedCommandsInfoNV::pipeline must match the current bound pipeline at GeneratedCommandsInfoNV::pipelineBindPoint
• Transform feedback must not be active
• The ::deviceGeneratedCommands feature must be enabled

Valid Usage (Implicit)

• commandBuffer must be a valid CommandBuffer handle

• pGeneratedCommandsInfo must be a valid pointer to a valid GeneratedCommandsInfoNV structure
• commandBuffer must be in the recording state
• The CommandPool that commandBuffer was allocated from must support graphics, or compute operations
• This command must only be called inside of a render pass instance

Host Synchronization

• Host access to commandBuffer must be externally synchronized

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

Command Properties

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See Also

Bool32, CommandBuffer, GeneratedCommandsInfoNV

vkCmdPreprocessGeneratedCommandsNV - Performs preprocessing for generated commands

Parameters

• commandBuffer is the command buffer which does the preprocessing.

• pGeneratedCommandsInfo is a pointer to an instance of the GeneratedCommandsInfoNV structure containing parameters affecting the preprocessing step.

Valid Usage

• commandBuffer must not be a protected command buffer

• pGeneratedCommandsInfo`s indirectCommandsLayout must have been created with the INDIRECT_COMMANDS_LAYOUT_USAGE_EXPLICIT_PREPROCESS_BIT_NV bit set
• The ::deviceGeneratedCommands feature must be enabled

Valid Usage (Implicit)

• commandBuffer must be a valid CommandBuffer handle

• pGeneratedCommandsInfo must be a valid pointer to a valid GeneratedCommandsInfoNV structure
• commandBuffer must be in the recording state
• The CommandPool that commandBuffer was allocated from must support graphics, or compute operations
• This command must only be called outside of a render pass instance

Host Synchronization

• Host access to commandBuffer must be externally synchronized

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

Command Properties

'

See Also

CommandBuffer, GeneratedCommandsInfoNV

vkCmdBindPipelineShaderGroupNV - Bind a pipeline object

Parameters

• commandBuffer is the command buffer that the pipeline will be bound to.

• pipelineBindPoint is a PipelineBindPoint value specifying to which bind point the pipeline is bound.
• pipeline is the pipeline to be bound.
• groupIndex is the shader group to be bound.

Valid Usage

• groupIndex must be 0 or less than the effective GraphicsPipelineShaderGroupsCreateInfoNV::groupCount including the referenced pipelines

• The pipelineBindPoint must be PIPELINE_BIND_POINT_GRAPHICS
• The same restrictions as cmdBindPipeline apply as if the bound pipeline was created only with the Shader Group from the groupIndex information
• The ::deviceGeneratedCommands feature must be enabled

Valid Usage (Implicit)

• commandBuffer must be a valid CommandBuffer handle

• pipelineBindPoint must be a valid PipelineBindPoint value
• pipeline must be a valid Pipeline handle
• commandBuffer must be in the recording state
• The CommandPool that commandBuffer was allocated from must support graphics, or compute operations
• Both of commandBuffer, and pipeline must have been created, allocated, or retrieved from the same Device

Host Synchronization

• Host access to commandBuffer must be externally synchronized

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

Command Properties

'

See Also

CommandBuffer, Pipeline, PipelineBindPoint

vkGetGeneratedCommandsMemoryRequirementsNV - Retrieve the buffer allocation requirements for generated commands

Parameters

• device is the logical device that owns the buffer.

• pInfo is a pointer to an instance of the GeneratedCommandsMemoryRequirementsInfoNV structure containing parameters required for the memory requirements query.
• pMemoryRequirements points to an instance of the MemoryRequirements2 structure in which the memory requirements of the buffer object are returned.

Valid Usage

• The ::deviceGeneratedCommands feature must be enabled

Valid Usage (Implicit)

• device must be a valid Device handle

• pInfo must be a valid pointer to a valid GeneratedCommandsMemoryRequirementsInfoNV structure
• pMemoryRequirements must be a valid pointer to a MemoryRequirements2 structure

See Also

Device, GeneratedCommandsMemoryRequirementsInfoNV, MemoryRequirements2

vkCreateIndirectCommandsLayoutNV - Create an indirect command layout object

Parameters

• device is the logical device that creates the indirect command layout.

• pCreateInfo is a pointer to an instance of the IndirectCommandsLayoutCreateInfoNV structure containing parameters affecting creation of the indirect command layout.
• pAllocator controls host memory allocation as described in the Memory Allocation chapter.
• pIndirectCommandsLayout points to a IndirectCommandsLayoutNV handle in which the resulting indirect command layout is returned.

Valid Usage

• The ::deviceGeneratedCommands feature must be enabled

Valid Usage (Implicit)

• device must be a valid Device handle

• pCreateInfo must be a valid pointer to a valid IndirectCommandsLayoutCreateInfoNV structure
• If pAllocator is not NULL, pAllocator must be a valid pointer to a valid AllocationCallbacks structure
• pIndirectCommandsLayout must be a valid pointer to a IndirectCommandsLayoutNV handle

Return Codes

Success

• SUCCESS

Failure

• ERROR_OUT_OF_HOST_MEMORY
• ERROR_OUT_OF_DEVICE_MEMORY

See Also

AllocationCallbacks, Device, IndirectCommandsLayoutCreateInfoNV, IndirectCommandsLayoutNV

A convenience wrapper to make a compatible pair of calls to createIndirectCommandsLayoutNV and destroyIndirectCommandsLayoutNV

To ensure that destroyIndirectCommandsLayoutNV is always called: pass bracket (or the allocate function from your favourite resource management library) as the first argument. To just extract the pair pass (,) as the first argument.

vkDestroyIndirectCommandsLayoutNV - Destroy an indirect commands layout

Parameters

• device is the logical device that destroys the layout.

• indirectCommandsLayout is the layout to destroy.
• pAllocator controls host memory allocation as described in the Memory Allocation chapter.

Valid Usage

• All submitted commands that refer to indirectCommandsLayout must have completed execution

• If AllocationCallbacks were provided when indirectCommandsLayout was created, a compatible set of callbacks must be provided here
• If no AllocationCallbacks were provided when indirectCommandsLayout was created, pAllocator must be NULL
• The ::deviceGeneratedCommands feature must be enabled

Valid Usage (Implicit)

• device must be a valid Device handle

• If indirectCommandsLayout is not NULL_HANDLE, indirectCommandsLayout must be a valid IndirectCommandsLayoutNV handle
• If pAllocator is not NULL, pAllocator must be a valid pointer to a valid AllocationCallbacks structure
• If indirectCommandsLayout is a valid handle, it must have been created, allocated, or retrieved from device

Host Synchronization

• Host access to indirectCommandsLayout must be externally synchronized

See Also

AllocationCallbacks, Device, IndirectCommandsLayoutNV

VkPhysicalDeviceDeviceGeneratedCommandsFeaturesNV - Structure describing the device-generated commands features that can be supported by an implementation

Members

The members of the PhysicalDeviceDeviceGeneratedCommandsFeaturesNV structure describe the following features:

Description

If the PhysicalDeviceDeviceGeneratedCommandsFeaturesNV structure is included in the pNext chain of PhysicalDeviceFeatures2, it is filled with values indicating whether the feature is supported. PhysicalDeviceDeviceGeneratedCommandsFeaturesNV can also be used in the pNext chain of DeviceCreateInfo to enable the features.

Valid Usage (Implicit)

See Also

Bool32, StructureType

VkPhysicalDeviceDeviceGeneratedCommandsPropertiesNV - Structure describing push descriptor limits that can be supported by an implementation

Valid Usage (Implicit)

See Also

StructureType

VkGraphicsShaderGroupCreateInfoNV - Structure specifying override parameters for each shader group

Valid Usage

• For stageCount, the same restrictions as in GraphicsPipelineCreateInfo::stageCount apply

• For pStages, the same restrictions as in GraphicsPipelineCreateInfo::pStages apply
• For pVertexInputState, the same restrictions as in GraphicsPipelineCreateInfo::pVertexInputState apply
• For pTessellationState, the same restrictions as in GraphicsPipelineCreateInfo::pTessellationState apply

Valid Usage (Implicit)

• sType must be STRUCTURE_TYPE_GRAPHICS_SHADER_GROUP_CREATE_INFO_NV

• pNext must be NULL
• pStages must be a valid pointer to an array of stageCount valid PipelineShaderStageCreateInfo structures
• stageCount must be greater than 0

See Also

GraphicsPipelineShaderGroupsCreateInfoNV, PipelineShaderStageCreateInfo, PipelineTessellationStateCreateInfo, PipelineVertexInputStateCreateInfo, StructureType

VkGraphicsPipelineShaderGroupsCreateInfoNV - Structure specifying parameters of a newly created multi shader group pipeline

Description

When referencing shader groups by index, groups defined in the referenced pipelines are treated as if they were defined as additional entries in pGroups. They are appended in the order they appear in the pPipelines array and in the pGroups array when those pipelines were defined.

The application must maintain the lifetime of all such referenced pipelines based on the pipelines that make use of them.

Valid Usage

• groupCount must be at least 1 and as maximum PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::maxGraphicsShaderGroupCount

• The sum of groupCount including those groups added from referenced pPipelines must also be as maximum PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::maxGraphicsShaderGroupCount
• The state of the first element of pGroups must match its equivalent within the parent’s GraphicsPipelineCreateInfo
• Each element of pGroups must in combination with the rest of the pipeline state yield a valid state configuration
• All elements of pGroups must use the same shader stage combinations unless any mesh shader stage is used, then either combination of task and mesh or just mesh shader is valid
• Mesh and regular primitive shading stages cannot be mixed across pGroups
• Each element of the pPipelines member of libraries must have been created with identical state to the pipeline currently created except the state that can be overriden by GraphicsShaderGroupCreateInfoNV
• The ::deviceGeneratedCommands feature must be enabled

Valid Usage (Implicit)

• sType must be STRUCTURE_TYPE_GRAPHICS_PIPELINE_SHADER_GROUPS_CREATE_INFO_NV

• pGroups must be a valid pointer to an array of groupCount valid GraphicsShaderGroupCreateInfoNV structures
• If pipelineCount is not 0, pPipelines must be a valid pointer to an array of pipelineCount valid Pipeline handles
• groupCount must be greater than 0

See Also

GraphicsShaderGroupCreateInfoNV, Pipeline, StructureType

VkBindShaderGroupIndirectCommandNV - Structure specifying input data for a single shader group command token

Valid Usage

• The current bound graphics pipeline, as well as the pipelines it may reference, must have been created with PIPELINE_CREATE_INDIRECT_BINDABLE_BIT_NV

• The index must be within range of the accessible shader groups of the current bound graphics pipeline. See cmdBindPipelineShaderGroupNV for further details

See Also

No cross-references are available

VkBindIndexBufferIndirectCommandNV - Structure specifying input data for a single index buffer command token

Valid Usage

• The buffer’s usage flag from which the address was acquired must have the BUFFER_USAGE_INDEX_BUFFER_BIT bit set

• The bufferAddress must be aligned to the indexType used
• Each element of the buffer from which the address was acquired and that is non-sparse must be bound completely and contiguously to a single DeviceMemory object

Valid Usage (Implicit)

• indexType must be a valid IndexType value

See Also

DeviceAddress, IndexType

VkBindVertexBufferIndirectCommandNV - Structure specifying input data for a single vertex buffer command token

Valid Usage

• The buffer’s usage flag from which the address was acquired must have the BUFFER_USAGE_VERTEX_BUFFER_BIT bit set

• Each element of the buffer from which the address was acquired and that is non-sparse must be bound completely and contiguously to a single DeviceMemory object

See Also

DeviceAddress

VkSetStateFlagsIndirectCommandNV - Structure specifying input data for a single state flag command token

See Also

No cross-references are available

VkIndirectCommandsStreamNV - Structure specifying input streams for generated command tokens

Valid Usage

• The buffer’s usage flag must have the BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set

• The offset must be aligned to PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::minIndirectCommandsBufferOffsetAlignment
• If buffer is non-sparse then it must be bound completely and contiguously to a single DeviceMemory object

Valid Usage (Implicit)

• buffer must be a valid Buffer handle

See Also

Buffer, DeviceSize, GeneratedCommandsInfoNV

VkIndirectCommandsLayoutTokenNV - Struct specifying the details of an indirect command layout token

Valid Usage

• stream must be smaller than IndirectCommandsLayoutCreateInfoNV::streamCount

• offset must be less than or equal to PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::maxIndirectCommandsTokenOffset
• If tokenType is INDIRECT_COMMANDS_TOKEN_TYPE_VERTEX_BUFFER_NV, vertexBindingUnit must stay within device supported limits for the appropriate commands
• If tokenType is INDIRECT_COMMANDS_TOKEN_TYPE_PUSH_CONSTANT_NV, pushconstantPipelineLayout must be valid
• If tokenType is INDIRECT_COMMANDS_TOKEN_TYPE_PUSH_CONSTANT_NV, pushconstantOffset must be a multiple of 4
• If tokenType is INDIRECT_COMMANDS_TOKEN_TYPE_PUSH_CONSTANT_NV, pushconstantSize must be a multiple of 4
• If tokenType is INDIRECT_COMMANDS_TOKEN_TYPE_PUSH_CONSTANT_NV, pushconstantOffset must be less than PhysicalDeviceLimits::maxPushConstantsSize
• If tokenType is INDIRECT_COMMANDS_TOKEN_TYPE_PUSH_CONSTANT_NV, pushconstantSize must be less than or equal to PhysicalDeviceLimits::maxPushConstantsSize minus pushconstantOffset
• If tokenType is INDIRECT_COMMANDS_TOKEN_TYPE_PUSH_CONSTANT_NV, for each byte in the range specified by pushconstantOffset and pushconstantSize and for each shader stage in pushconstantShaderStageFlags, there must be a push constant range in pushconstantPipelineLayout that includes that byte and that stage
• If tokenType is INDIRECT_COMMANDS_TOKEN_TYPE_PUSH_CONSTANT_NV, for each byte in the range specified by pushconstantOffset and pushconstantSize and for each push constant range that overlaps that byte, pushconstantShaderStageFlags must include all stages in that push constant range’s PushConstantRange::pushconstantShaderStageFlags
• If tokenType is INDIRECT_COMMANDS_TOKEN_TYPE_STATE_FLAGS_NV, indirectStateFlags must not be ´0´

Valid Usage (Implicit)

• sType must be STRUCTURE_TYPE_INDIRECT_COMMANDS_LAYOUT_TOKEN_NV

• pNext must be NULL
• tokenType must be a valid IndirectCommandsTokenTypeNV value
• If pushconstantPipelineLayout is not NULL_HANDLE, pushconstantPipelineLayout must be a valid PipelineLayout handle
• pushconstantShaderStageFlags must be a valid combination of ShaderStageFlagBits values
• indirectStateFlags must be a valid combination of IndirectStateFlagBitsNV values
• If indexTypeCount is not 0, pIndexTypes must be a valid pointer to an array of indexTypeCount valid IndexType values
• If indexTypeCount is not 0, pIndexTypeValues must be a valid pointer to an array of indexTypeCount uint32_t values

See Also

Bool32, IndexType, IndirectCommandsLayoutCreateInfoNV, IndirectCommandsTokenTypeNV, IndirectStateFlagsNV, PipelineLayout, ShaderStageFlags, StructureType

VkIndirectCommandsLayoutCreateInfoNV - Structure specifying the parameters of a newly created indirect commands layout object

Description

The following code illustrates some of the flags:

void cmdProcessAllSequences(cmd, pipeline, indirectCommandsLayout, pIndirectCommandsTokens, sequencesCount, indexbuffer, indexbufferOffset)
{
  for (s = 0; s < sequencesCount; s++)
  {
    sUsed = s;

    if (indirectCommandsLayout.flags & VK_INDIRECT_COMMANDS_LAYOUT_USAGE_INDEXED_SEQUENCES_BIT_NV) {
      sUsed = indexbuffer.load_uint32( sUsed * sizeof(uint32_t) + indexbufferOffset);
    }

    if (indirectCommandsLayout.flags & VK_INDIRECT_COMMANDS_LAYOUT_USAGE_UNORDERED_SEQUENCES_BIT_NV) {
      sUsed = incoherent_implementation_dependent_permutation[ sUsed ];
    }

    cmdProcessSequence( cmd, pipeline, indirectCommandsLayout, pIndirectCommandsTokens, sUsed );
  }
}

Valid Usage

• The pipelineBindPoint must be PIPELINE_BIND_POINT_GRAPHICS

• tokenCount must be greater than 0 and less than or equal to PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::maxIndirectCommandsTokenCount
• If pTokens contains an entry of INDIRECT_COMMANDS_TOKEN_TYPE_SHADER_GROUP_NV it must be the first element of the array and there must be only a single element of such token type
• If pTokens contains an entry of INDIRECT_COMMANDS_TOKEN_TYPE_STATE_FLAGS_NV there must be only a single element of such token type
• All state tokens in pTokens must occur prior work provoking tokens (INDIRECT_COMMANDS_TOKEN_TYPE_DRAW_NV, INDIRECT_COMMANDS_TOKEN_TYPE_DRAW_INDEXED_NV, INDIRECT_COMMANDS_TOKEN_TYPE_DRAW_TASKS_NV)
• The content of pTokens must include one single work provoking token that is compatible with the pipelineBindPoint
• streamCount must be greater than 0 and less or equal to PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::maxIndirectCommandsStreamCount
• each element of pStreamStrides must be greater than `0`and less than or equal to PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::maxIndirectCommandsStreamStride. Furthermore the alignment of each token input must be ensured

Valid Usage (Implicit)

• sType must be STRUCTURE_TYPE_INDIRECT_COMMANDS_LAYOUT_CREATE_INFO_NV

• pNext must be NULL
• flags must be a valid combination of IndirectCommandsLayoutUsageFlagBitsNV values
• flags must not be 0
• pipelineBindPoint must be a valid PipelineBindPoint value
• pTokens must be a valid pointer to an array of tokenCount valid IndirectCommandsLayoutTokenNV structures
• pStreamStrides must be a valid pointer to an array of streamCount uint32_t values
• tokenCount must be greater than 0
• streamCount must be greater than 0

See Also

IndirectCommandsLayoutTokenNV, IndirectCommandsLayoutUsageFlagsNV, PipelineBindPoint, StructureType, createIndirectCommandsLayoutNV

VkGeneratedCommandsInfoNV - Structure specifying parameters for the generation of commands

Valid Usage

• The provided pipeline must match the pipeline bound at execution time

• If the indirectCommandsLayout uses a token of INDIRECT_COMMANDS_TOKEN_TYPE_SHADER_GROUP_NV, then the pipeline must have been created with multiple shader groups
• If the indirectCommandsLayout uses a token of INDIRECT_COMMANDS_TOKEN_TYPE_SHADER_GROUP_NV, then the pipeline must have been created with PIPELINE_CREATE_INDIRECT_BINDABLE_BIT_NV set in GraphicsPipelineCreateInfo::flags
• If the indirectCommandsLayout uses a token of INDIRECT_COMMANDS_TOKEN_TYPE_PUSH_CONSTANT_NV, then the pipeline`s PipelineLayout must match the IndirectCommandsLayoutTokenNV::pushconstantPipelineLayout
• streamCount must match the indirectCommandsLayout’s streamCount
• sequencesCount must be less or equal to PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::maxIndirectSequenceCount and GeneratedCommandsMemoryRequirementsInfoNV::maxSequencesCount that was used to determine the preprocessSize
• preprocessBuffer must have the BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set in its usage flag
• preprocessOffset must be aligned to PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::minIndirectCommandsBufferOffsetAlignment
• If preprocessBuffer is non-sparse then it must be bound completely and contiguously to a single DeviceMemory object
• preprocessSize must be at least equal to the memory requirement`s size returned by getGeneratedCommandsMemoryRequirementsNV using the matching inputs (indirectCommandsLayout, …​) as within this structure
• sequencesCountBuffer can be set if the actual used count of sequences is sourced from the provided buffer. In that case the sequencesCount serves as upper bound
• If sequencesCountBuffer is not NULL_HANDLE, its usage flag must have the BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set
• If sequencesCountBuffer is not NULL_HANDLE, sequencesCountOffset must be aligned to PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::minSequencesCountBufferOffsetAlignment
• If sequencesCountBuffer is not NULL_HANDLE and is non-sparse then it must be bound completely and contiguously to a single DeviceMemory object
• If indirectCommandsLayout’s INDIRECT_COMMANDS_LAYOUT_USAGE_INDEXED_SEQUENCES_BIT_NV is set, sequencesIndexBuffer must be set otherwise it must be NULL_HANDLE
• If sequencesIndexBuffer is not NULL_HANDLE, its usage flag must have the BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set
• If sequencesIndexBuffer is not NULL_HANDLE, sequencesIndexOffset must be aligned to PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::minSequencesIndexBufferOffsetAlignment
• If sequencesIndexBuffer is not NULL_HANDLE and is non-sparse then it must be bound completely and contiguously to a single DeviceMemory object

Valid Usage (Implicit)

• sType must be STRUCTURE_TYPE_GENERATED_COMMANDS_INFO_NV

• pNext must be NULL
• pipelineBindPoint must be a valid PipelineBindPoint value
• pipeline must be a valid Pipeline handle
• indirectCommandsLayout must be a valid IndirectCommandsLayoutNV handle
• pStreams must be a valid pointer to an array of streamCount valid IndirectCommandsStreamNV structures
• preprocessBuffer must be a valid Buffer handle
• If sequencesCountBuffer is not NULL_HANDLE, sequencesCountBuffer must be a valid Buffer handle
• If sequencesIndexBuffer is not NULL_HANDLE, sequencesIndexBuffer must be a valid Buffer handle
• streamCount must be greater than 0
• Each of indirectCommandsLayout, pipeline, preprocessBuffer, sequencesCountBuffer, and sequencesIndexBuffer that are valid handles of non-ignored parameters must have been created, allocated, or retrieved from the same Device

See Also

Buffer, DeviceSize, IndirectCommandsLayoutNV, IndirectCommandsStreamNV, Pipeline, PipelineBindPoint, StructureType, cmdExecuteGeneratedCommandsNV, cmdPreprocessGeneratedCommandsNV

VkGeneratedCommandsMemoryRequirementsInfoNV - Structure specifying parameters for the reservation of preprocess buffer space

Valid Usage

• maxSequencesCount must be less or equal to PhysicalDeviceDeviceGeneratedCommandsPropertiesNV::maxIndirectSequenceCount

Valid Usage (Implicit)

• sType must be STRUCTURE_TYPE_GENERATED_COMMANDS_MEMORY_REQUIREMENTS_INFO_NV

• pNext must be NULL
• pipelineBindPoint must be a valid PipelineBindPoint value
• pipeline must be a valid Pipeline handle
• indirectCommandsLayout must be a valid IndirectCommandsLayoutNV handle
• Both of indirectCommandsLayout, and pipeline must have been created, allocated, or retrieved from the same Device

See Also

IndirectCommandsLayoutNV, Pipeline, PipelineBindPoint, StructureType, getGeneratedCommandsMemoryRequirementsNV

VkIndirectCommandsLayoutUsageFlagBitsNV - Bitmask specifying allowed usage of an indirect commands layout

See Also

IndirectCommandsLayoutUsageFlagsNV

VkIndirectStateFlagBitsNV - Bitmask specifiying state that can be altered on the device

See Also

IndirectStateFlagsNV

VkIndirectCommandsTokenTypeNV - Enum specifying token commands

Description

'

Supported indirect command tokens

See Also

IndirectCommandsLayoutTokenNV

VkIndirectCommandsLayoutNV - Opaque handle to an indirect commands layout object

See Also

GeneratedCommandsInfoNV, GeneratedCommandsMemoryRequirementsInfoNV, createIndirectCommandsLayoutNV, destroyIndirectCommandsLayoutNV