Safe Haskell	None
Language	Haskell2010

Vulkan.Core12.Promoted_From_VK_KHR_draw_indirect_count

Synopsis

cmdDrawIndirectCount :: forall io. MonadIO io => CommandBuffer -> Buffer -> ("offset" ::: DeviceSize) -> ("countBuffer" ::: Buffer) -> ("countBufferOffset" ::: DeviceSize) -> ("maxDrawCount" ::: Word32) -> ("stride" ::: Word32) -> io ()
cmdDrawIndexedIndirectCount :: forall io. MonadIO io => CommandBuffer -> Buffer -> ("offset" ::: DeviceSize) -> ("countBuffer" ::: Buffer) -> ("countBufferOffset" ::: DeviceSize) -> ("maxDrawCount" ::: Word32) -> ("stride" ::: Word32) -> io ()

Documentation

cmdDrawIndirectCount Source #

Arguments

:: forall io. MonadIO io
=> CommandBuffer	`commandBuffer` is the command buffer into which the command is recorded.
-> Buffer	`buffer` is the buffer containing draw parameters.
-> ("offset" ::: DeviceSize)	`offset` is the byte offset into `buffer` where parameters begin.
-> ("countBuffer" ::: Buffer)	`countBuffer` is the buffer containing the draw count.
-> ("countBufferOffset" ::: DeviceSize)	`countBufferOffset` is the byte offset into `countBuffer` where the draw count begins.
-> ("maxDrawCount" ::: Word32)	`maxDrawCount` specifies the maximum number of draws that will be executed. The actual number of executed draw calls is the minimum of the count specified in `countBuffer` and `maxDrawCount`.
-> ("stride" ::: Word32)	`stride` is the byte stride between successive sets of draw parameters.
-> io ()

vkCmdDrawIndirectCount - Perform an indirect draw with the draw count sourced from a buffer

Description

cmdDrawIndirectCount behaves similarly to cmdDrawIndirect except that the draw count is read by the device from a buffer during execution. The command will read an unsigned 32-bit integer from countBuffer located at countBufferOffset and use this as the draw count.

Valid Usage

If a Sampler created with magFilter or minFilter equal to FILTER_LINEAR and compareEnable equal to FALSE is used to sample a ImageView as a result of this command, then the image view’s format features must contain FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT

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
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
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
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
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
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 ???
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 ???
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
A valid pipeline must be bound to the pipeline bind point used by this command
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
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
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
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
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
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
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
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
If a ImageView is accessed using OpImageWrite as a result of this command, then the Type of the Texel operand of that instruction must have at least as many components as the image view’s format.
If a BufferView is accessed using OpImageWrite as a result of this command, then the Type of the Texel operand of that instruction must have at least as many components as the image view’s format.
If a ImageView with a Format that has a 64-bit channel width is accessed as a result of this command, the SampledType of the OpTypeImage operand of that instruction must have a Width of 64.
If a ImageView with a Format that has a channel width less than 64-bit is accessed as a result of this command, the SampledType of the OpTypeImage operand of that instruction must have a Width of 32.
If a BufferView with a Format that has a 64-bit channel width is accessed as a result of this command, the SampledType of the OpTypeImage operand of that instruction must have a Width of 64.
If a BufferView with a Format that has a channel width less than 64-bit is accessed as a result of this command, the SampledType of the OpTypeImage operand of that instruction must have a Width of 32.
If the sparseImageInt64Atomics feature is not enabled, Image objects created with the IMAGE_CREATE_SPARSE_RESIDENCY_BIT flag must not be accessed by atomic instructions through an OpTypeImage with a SampledType with a Width of 64 by this command.
If the sparseImageInt64Atomics feature is not enabled, Buffer objects created with the BUFFER_CREATE_SPARSE_RESIDENCY_BIT flag must not be accessed by atomic instructions through an OpTypeImage with a SampledType with a Width of 64 by this command.
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
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
Every input attachment used by the current subpass must be bound to the pipeline via a descriptor set
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, except for cases involving read-only access to depth/stencil attachments as described in the Render Pass chapter
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
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
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled, but not the DYNAMIC_STATE_SCISSOR_WITH_COUNT_EXT dynamic state enabled, then cmdSetViewportWithCountEXT must have been called in the current command buffer prior to this draw command, and the viewportCount parameter of cmdSetViewportWithCountEXT must match the PipelineViewportStateCreateInfo::scissorCount of the pipeline
If the bound graphics pipeline state was created with the DYNAMIC_STATE_SCISSOR_WITH_COUNT_EXT dynamic state enabled, but not the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled, then cmdSetScissorWithCountEXT must have been called in the current command buffer prior to this draw command, and the scissorCount parameter of cmdSetScissorWithCountEXT must match the PipelineViewportStateCreateInfo::viewportCount of the pipeline
If the bound graphics pipeline state was created with both the DYNAMIC_STATE_SCISSOR_WITH_COUNT_EXT and DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic states enabled then both cmdSetViewportWithCountEXT and cmdSetScissorWithCountEXT must have been called in the current command buffer prior to this draw command, and the viewportCount parameter of cmdSetViewportWithCountEXT must match the scissorCount parameter of cmdSetScissorWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled, but not the DYNAMIC_STATE_VIEWPORT_W_SCALING_NV dynamic state enabled, then the bound graphics pipeline must have been created with PipelineViewportWScalingStateCreateInfoNV::viewportCount greater or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT and DYNAMIC_STATE_VIEWPORT_W_SCALING_NV dynamic states enabled then the viewportCount parameter in the last call to cmdSetViewportWScalingNV must be greater than or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled, but not the DYNAMIC_STATE_VIEWPORT_SHADING_RATE_PALETTE_NV dynamic state enabled, then the bound graphics pipeline must have been created with PipelineViewportShadingRateImageStateCreateInfoNV::viewportCount greater or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT and DYNAMIC_STATE_VIEWPORT_SHADING_RATE_PALETTE_NV dynamic states enabled then the viewportCount parameter in the last call to cmdSetViewportShadingRatePaletteNV must be greater than or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled and an instance of PipelineViewportSwizzleStateCreateInfoNV chained from VkPipelineVieportCreateInfo, then the bound graphics pipeline must have been created with PipelineViewportSwizzleStateCreateInfoNV::viewportCount greater or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled and an instance of PipelineViewportExclusiveScissorStateCreateInfoNV chained from VkPipelineVieportCreateInfo, then the bound graphics pipeline must have been created with PipelineViewportExclusiveScissorStateCreateInfoNV::exclusiveScissorCount greater or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_PRIMITIVE_TOPOLOGY_EXT dynamic state enabled then cmdSetPrimitiveTopologyEXT must have been called in the current command buffer prior to this draw command, and the primitiveTopology parameter of cmdSetPrimitiveTopologyEXT must be of the same topology class as the pipeline PipelineInputAssemblyStateCreateInfo::topology state
If the primitiveFragmentShadingRateWithMultipleViewports limit is not supported, the bound graphics pipeline was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled, and any of the shader stages of the bound graphics pipeline write to the PrimitiveShadingRateKHR built-in, then cmdSetViewportWithCountEXT must have been called in the current command buffer prior to this draw command, and the viewportCount parameter of cmdSetViewportWithCountEXT must be 1
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
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
For a given vertex buffer binding, any attribute data fetched must be entirely contained within the corresponding vertex buffer binding, as described in ???
If buffer is non-sparse then it must be bound completely and contiguously to a single DeviceMemory object
buffer must have been created with the BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set
offset must be a multiple of 4
commandBuffer must not be a protected command buffer
If countBuffer is non-sparse then it must be bound completely and contiguously to a single DeviceMemory object
countBuffer must have been created with the BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set
countBufferOffset must be a multiple of 4
The count stored in countBuffer must be less than or equal to PhysicalDeviceLimits::maxDrawIndirectCount
(countBufferOffset + sizeof(uint32_t)) must be less than or equal to the size of countBuffer
If drawIndirectCount is not enabled this function must not be used
stride must be a multiple of 4 and must be greater than or equal to sizeof(DrawIndirectCommand)
If maxDrawCount is greater than or equal to 1, (stride × (maxDrawCount - 1) + offset + sizeof(DrawIndirectCommand)) must be less than or equal to the size of buffer
If the count stored in countBuffer is equal to 1, (offset + sizeof(DrawIndirectCommand)) must be less than or equal to the size of buffer
If the count stored in countBuffer is greater than 1, (stride × (drawCount - 1) + offset + sizeof(DrawIndirectCommand)) must be less than or equal to the size of buffer

Valid Usage (Implicit)

commandBuffer must be a valid CommandBuffer handle

buffer must be a valid Buffer handle
countBuffer must be a valid Buffer handle
commandBuffer must be in the recording state
The CommandPool that commandBuffer was allocated from must support graphics operations
This command must only be called inside of a render pass instance
Each of buffer, commandBuffer, and countBuffer 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

'

Command Buffer Levels	Render Pass Scope	Supported Queue Types	Pipeline Type
Primary Secondary	Inside	Graphics	Graphics

Description

cmdDrawIndexedIndirectCount behaves similarly to cmdDrawIndexedIndirect except that the draw count is read by the device from a buffer during execution. The command will read an unsigned 32-bit integer from countBuffer located at countBufferOffset and use this as the draw count.

Valid Usage

If a Sampler created with magFilter or minFilter equal to FILTER_LINEAR and compareEnable equal to FALSE is used to sample a ImageView as a result of this command, then the image view’s format features must contain FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT

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
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
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
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
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
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 ???
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 ???
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
A valid pipeline must be bound to the pipeline bind point used by this command
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
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
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
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
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
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
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
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
If a ImageView is accessed using OpImageWrite as a result of this command, then the Type of the Texel operand of that instruction must have at least as many components as the image view’s format.
If a BufferView is accessed using OpImageWrite as a result of this command, then the Type of the Texel operand of that instruction must have at least as many components as the image view’s format.
If a ImageView with a Format that has a 64-bit channel width is accessed as a result of this command, the SampledType of the OpTypeImage operand of that instruction must have a Width of 64.
If a ImageView with a Format that has a channel width less than 64-bit is accessed as a result of this command, the SampledType of the OpTypeImage operand of that instruction must have a Width of 32.
If a BufferView with a Format that has a 64-bit channel width is accessed as a result of this command, the SampledType of the OpTypeImage operand of that instruction must have a Width of 64.
If a BufferView with a Format that has a channel width less than 64-bit is accessed as a result of this command, the SampledType of the OpTypeImage operand of that instruction must have a Width of 32.
If the sparseImageInt64Atomics feature is not enabled, Image objects created with the IMAGE_CREATE_SPARSE_RESIDENCY_BIT flag must not be accessed by atomic instructions through an OpTypeImage with a SampledType with a Width of 64 by this command.
If the sparseImageInt64Atomics feature is not enabled, Buffer objects created with the BUFFER_CREATE_SPARSE_RESIDENCY_BIT flag must not be accessed by atomic instructions through an OpTypeImage with a SampledType with a Width of 64 by this command.
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
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
Every input attachment used by the current subpass must be bound to the pipeline via a descriptor set
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, except for cases involving read-only access to depth/stencil attachments as described in the Render Pass chapter
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
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
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled, but not the DYNAMIC_STATE_SCISSOR_WITH_COUNT_EXT dynamic state enabled, then cmdSetViewportWithCountEXT must have been called in the current command buffer prior to this draw command, and the viewportCount parameter of cmdSetViewportWithCountEXT must match the PipelineViewportStateCreateInfo::scissorCount of the pipeline
If the bound graphics pipeline state was created with the DYNAMIC_STATE_SCISSOR_WITH_COUNT_EXT dynamic state enabled, but not the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled, then cmdSetScissorWithCountEXT must have been called in the current command buffer prior to this draw command, and the scissorCount parameter of cmdSetScissorWithCountEXT must match the PipelineViewportStateCreateInfo::viewportCount of the pipeline
If the bound graphics pipeline state was created with both the DYNAMIC_STATE_SCISSOR_WITH_COUNT_EXT and DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic states enabled then both cmdSetViewportWithCountEXT and cmdSetScissorWithCountEXT must have been called in the current command buffer prior to this draw command, and the viewportCount parameter of cmdSetViewportWithCountEXT must match the scissorCount parameter of cmdSetScissorWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled, but not the DYNAMIC_STATE_VIEWPORT_W_SCALING_NV dynamic state enabled, then the bound graphics pipeline must have been created with PipelineViewportWScalingStateCreateInfoNV::viewportCount greater or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT and DYNAMIC_STATE_VIEWPORT_W_SCALING_NV dynamic states enabled then the viewportCount parameter in the last call to cmdSetViewportWScalingNV must be greater than or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled, but not the DYNAMIC_STATE_VIEWPORT_SHADING_RATE_PALETTE_NV dynamic state enabled, then the bound graphics pipeline must have been created with PipelineViewportShadingRateImageStateCreateInfoNV::viewportCount greater or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT and DYNAMIC_STATE_VIEWPORT_SHADING_RATE_PALETTE_NV dynamic states enabled then the viewportCount parameter in the last call to cmdSetViewportShadingRatePaletteNV must be greater than or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled and an instance of PipelineViewportSwizzleStateCreateInfoNV chained from VkPipelineVieportCreateInfo, then the bound graphics pipeline must have been created with PipelineViewportSwizzleStateCreateInfoNV::viewportCount greater or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled and an instance of PipelineViewportExclusiveScissorStateCreateInfoNV chained from VkPipelineVieportCreateInfo, then the bound graphics pipeline must have been created with PipelineViewportExclusiveScissorStateCreateInfoNV::exclusiveScissorCount greater or equal to the viewportCount parameter in the last call to cmdSetViewportWithCountEXT
If the bound graphics pipeline state was created with the DYNAMIC_STATE_PRIMITIVE_TOPOLOGY_EXT dynamic state enabled then cmdSetPrimitiveTopologyEXT must have been called in the current command buffer prior to this draw command, and the primitiveTopology parameter of cmdSetPrimitiveTopologyEXT must be of the same topology class as the pipeline PipelineInputAssemblyStateCreateInfo::topology state
If the primitiveFragmentShadingRateWithMultipleViewports limit is not supported, the bound graphics pipeline was created with the DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled, and any of the shader stages of the bound graphics pipeline write to the PrimitiveShadingRateKHR built-in, then cmdSetViewportWithCountEXT must have been called in the current command buffer prior to this draw command, and the viewportCount parameter of cmdSetViewportWithCountEXT must be 1
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
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
For a given vertex buffer binding, any attribute data fetched must be entirely contained within the corresponding vertex buffer binding, as described in ???
If buffer is non-sparse then it must be bound completely and contiguously to a single DeviceMemory object
buffer must have been created with the BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set
offset must be a multiple of 4
commandBuffer must not be a protected command buffer
If countBuffer is non-sparse then it must be bound completely and contiguously to a single DeviceMemory object
countBuffer must have been created with the BUFFER_USAGE_INDIRECT_BUFFER_BIT bit set
countBufferOffset must be a multiple of 4
The count stored in countBuffer must be less than or equal to PhysicalDeviceLimits::maxDrawIndirectCount
(countBufferOffset + sizeof(uint32_t)) must be less than or equal to the size of countBuffer
If drawIndirectCount is not enabled this function must not be used
stride must be a multiple of 4 and must be greater than or equal to sizeof(DrawIndexedIndirectCommand)
If maxDrawCount is greater than or equal to 1, (stride × (maxDrawCount - 1) + offset + sizeof(DrawIndexedIndirectCommand)) must be less than or equal to the size of buffer
If count stored in countBuffer is equal to 1, (offset + sizeof(DrawIndexedIndirectCommand)) must be less than or equal to the size of buffer
If count stored in countBuffer is greater than 1, (stride × (drawCount - 1) + offset + sizeof(DrawIndexedIndirectCommand)) must be less than or equal to the size of buffer

Valid Usage (Implicit)

commandBuffer must be a valid CommandBuffer handle

buffer must be a valid Buffer handle
countBuffer must be a valid Buffer handle
commandBuffer must be in the recording state
The CommandPool that commandBuffer was allocated from must support graphics operations
This command must only be called inside of a render pass instance
Each of buffer, commandBuffer, and countBuffer 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

'

Command Buffer Levels	Render Pass Scope	Supported Queue Types	Pipeline Type
Primary Secondary	Inside	Graphics	Graphics

Documentation

Description

Valid Usage

Valid Usage (Implicit)

Host Synchronization

Command Properties

See Also

Description

Valid Usage

Valid Usage (Implicit)

Host Synchronization

Command Properties

See Also