vkd3d_shader_scan_descriptor_info Struct Reference

#include <vkd3d_shader.h>

Collaboration diagram for vkd3d_shader_scan_descriptor_info:

Public Attributes
enum vkd3d_shader_structure_type	type
const void *	next
struct vkd3d_shader_descriptor_info *	descriptors
unsigned int	descriptor_count

Detailed Description

A chained structure enumerating the descriptors declared by a shader.

This structure extends vkd3d_shader_compile_info.

When scanning a legacy Direct3D shader, vkd3d-shader enumerates descriptors as follows:

• Each constant register set used by the shader is scanned as a single constant buffer descriptor. There may therefore be up to three such descriptors, one for each register set used by the shader: float, integer, and boolean. The fields are set as follows:
  • The vkd3d_shader_descriptor_info::type field is set to VKD3D_SHADER_DESCRIPTOR_TYPE_CBV.
  • The vkd3d_shader_descriptor_info::register_space field is set to zero.
  • The vkd3d_shader_descriptor_info::register_index field is set to a member of enum vkd3d_shader_d3dbc_constant_register denoting which set is used.
  • The vkd3d_shader_descriptor_info::count field is set to one.
• Each sampler used by the shader is scanned as two separate descriptors, one representing the texture, and one representing the sampler state. If desired, these may be mapped back into a single combined sampler using struct vkd3d_shader_combined_resource_sampler. The fields are set as follows:
  • The vkd3d_shader_descriptor_info::type field is set to VKD3D_SHADER_DESCRIPTOR_TYPE_SRV and VKD3D_SHADER_DESCRIPTOR_TYPE_SAMPLER respectively.
  • The vkd3d_shader_descriptor_info::register_space field is set to zero.
  • The vkd3d_shader_descriptor_info::register_index field is set to the binding index of the original sampler, for both descriptors.
  • The vkd3d_shader_descriptor_info::count field is set to one.

Definition at line 1981 of file vkd3d_shader.h.

Member Data Documentation

descriptor_count

unsigned int vkd3d_shader_scan_descriptor_info::descriptor_count

Output; size, in elements, of descriptors.

Definition at line 1993 of file vkd3d_shader.h.

Referenced by d3d12_pipeline_state_init_uav_counters().

descriptors

struct vkd3d_shader_descriptor_info* vkd3d_shader_scan_descriptor_info::descriptors

Output; returns a pointer to an array of descriptors.

Definition at line 1991 of file vkd3d_shader.h.

Referenced by d3d12_pipeline_state_init_uav_counters(), shader_spirv_resource_bindings_init(), and vkd3d_shader_free_scan_descriptor_info().

next

const void* vkd3d_shader_scan_descriptor_info::next

Input; optional pointer to a structure containing further parameters.

Definition at line 1988 of file vkd3d_shader.h.

Referenced by d3d12_pipeline_state_find_and_init_uav_counters(), and shader_spirv_scan_shader().

type

enum vkd3d_shader_structure_type vkd3d_shader_scan_descriptor_info::type

Input; must be set to VKD3D_SHADER_STRUCTURE_TYPE_SCAN_DESCRIPTOR_INFO.

Definition at line 1986 of file vkd3d_shader.h.

Referenced by d3d12_pipeline_state_find_and_init_uav_counters(), and shader_spirv_scan_shader().

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The documentation for this struct was generated from the following file:

• sdk/lib/vkd3d/include/vkd3d_shader.h