Safe Haskell	None
Language	Haskell2010

Graphics.Vulkan.Core12.Promoted_From_VK_KHR_draw_indirect_count

Synopsis

cmdDrawIndirectCount :: CommandBuffer -> Buffer -> ("offset" ::: DeviceSize) -> ("countBuffer" ::: Buffer) -> ("countBufferOffset" ::: DeviceSize) -> ("maxDrawCount" ::: Word32) -> ("stride" ::: Word32) -> IO ()
cmdDrawIndexedIndirectCount :: CommandBuffer -> Buffer -> ("offset" ::: DeviceSize) -> ("countBuffer" ::: Buffer) -> ("countBufferOffset" ::: DeviceSize) -> ("maxDrawCount" ::: Word32) -> ("stride" ::: Word32) -> IO ()

Documentation

cmdDrawIndirectCount :: CommandBuffer -> Buffer -> ("offset" ::: DeviceSize) -> ("countBuffer" ::: Buffer) -> ("countBufferOffset" ::: DeviceSize) -> ("maxDrawCount" ::: Word32) -> ("stride" ::: Word32) -> IO () Source #

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

Parameters

CommandBuffer is the command buffer into which the command is recorded.

Buffer is the buffer containing draw parameters.
offset is the byte offset into Buffer where parameters begin.
countBuffer is the buffer containing the draw count.
countBufferOffset is the byte offset into countBuffer where the draw count begins.
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 is the byte stride between successive sets of draw parameters.

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 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

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 'Graphics.Vulkan.Core10.Image.ImageCreateInfo'::'Graphics.Vulkan.Core10.BaseType.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
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.
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
All vertex input bindings accessed via vertex input variables declared in the vertex shader entry point’s interface must have valid buffers bound
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
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
If drawIndirectCount is not enabled this function must not be used

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

Parameters

CommandBuffer is the command buffer into which the command is recorded.

Buffer is the buffer containing draw parameters.
offset is the byte offset into Buffer where parameters begin.
countBuffer is the buffer containing the draw count.
countBufferOffset is the byte offset into countBuffer where the draw count begins.
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 is the byte stride between successive sets of draw parameters.

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 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

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 'Graphics.Vulkan.Core10.Image.ImageCreateInfo'::'Graphics.Vulkan.Core10.BaseType.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
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.
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
All vertex input bindings accessed via vertex input variables declared in the vertex shader entry point’s interface must have valid buffers bound
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
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

Parameters

Description

Valid Usage

Valid Usage (Implicit)

Host Synchronization

Command Properties

See Also

Parameters

Description

Valid Usage

Valid Usage (Implicit)

Host Synchronization

Command Properties

See Also