d3d12shader.h

Go to the documentation of this file.

//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// File: D3D12Shader.h
// Content: D3D12 Shader Types and APIs
//

#ifndef __D3D12SHADER_H__
#define __D3D12SHADER_H__

#include "d3dcommon.h"

typedef enum D3D12_SHADER_VERSION_TYPE
{
 D3D12_SHVER_PIXEL_SHADER = 0,
 D3D12_SHVER_VERTEX_SHADER = 1,
 D3D12_SHVER_GEOMETRY_SHADER = 2,
 
 // D3D11 Shaders
 D3D12_SHVER_HULL_SHADER = 3,
 D3D12_SHVER_DOMAIN_SHADER = 4,
 D3D12_SHVER_COMPUTE_SHADER = 5,

 D3D12_SHVER_RESERVED0 = 0xFFF0,
} D3D12_SHADER_VERSION_TYPE;

#define D3D12_SHVER_GET_TYPE(_Version) \
 (((_Version) >> 16) & 0xffff)
#define D3D12_SHVER_GET_MAJOR(_Version) \
 (((_Version) >> 4) & 0xf)
#define D3D12_SHVER_GET_MINOR(_Version) \
 (((_Version) >> 0) & 0xf)

// Slot ID for library function return
#define D3D_RETURN_PARAMETER_INDEX (-1)

typedef D3D_RESOURCE_RETURN_TYPE D3D12_RESOURCE_RETURN_TYPE;

typedef D3D_CBUFFER_TYPE D3D12_CBUFFER_TYPE;


typedef struct _D3D12_SIGNATURE_PARAMETER_DESC
{
 LPCSTR SemanticName; // Name of the semantic
 UINT SemanticIndex; // Index of the semantic
 UINT Register; // Number of member variables
 D3D_NAME SystemValueType;// A predefined system value, or D3D_NAME_UNDEFINED if not applicable
 D3D_REGISTER_COMPONENT_TYPE ComponentType; // Scalar type (e.g. uint, float, etc.)
 BYTE Mask; // Mask to indicate which components of the register
 // are used (combination of D3D10_COMPONENT_MASK values)
 BYTE ReadWriteMask; // Mask to indicate whether a given component is 
 // never written (if this is an output signature) or
 // always read (if this is an input signature).
 // (combination of D3D_MASK_* values)
 UINT Stream; // Stream index
 D3D_MIN_PRECISION MinPrecision; // Minimum desired interpolation precision
} D3D12_SIGNATURE_PARAMETER_DESC;

typedef struct _D3D12_SHADER_BUFFER_DESC
{
 LPCSTR Name; // Name of the constant buffer
 D3D_CBUFFER_TYPE Type; // Indicates type of buffer content
 UINT Variables; // Number of member variables
 UINT Size; // Size of CB (in bytes)
 UINT uFlags; // Buffer description flags
} D3D12_SHADER_BUFFER_DESC;

typedef struct _D3D12_SHADER_VARIABLE_DESC
{
 LPCSTR Name; // Name of the variable
 UINT StartOffset; // Offset in constant buffer's backing store
 UINT Size; // Size of variable (in bytes)
 UINT uFlags; // Variable flags
 LPVOID DefaultValue; // Raw pointer to default value
 UINT StartTexture; // First texture index (or -1 if no textures used)
 UINT TextureSize; // Number of texture slots possibly used.
 UINT StartSampler; // First sampler index (or -1 if no textures used)
 UINT SamplerSize; // Number of sampler slots possibly used.
} D3D12_SHADER_VARIABLE_DESC;

typedef struct _D3D12_SHADER_TYPE_DESC
{
 D3D_SHADER_VARIABLE_CLASS Class; // Variable class (e.g. object, matrix, etc.)
 D3D_SHADER_VARIABLE_TYPE Type; // Variable type (e.g. float, sampler, etc.)
 UINT Rows; // Number of rows (for matrices, 1 for other numeric, 0 if not applicable)
 UINT Columns; // Number of columns (for vectors & matrices, 1 for other numeric, 0 if not applicable)
 UINT Elements; // Number of elements (0 if not an array)
 UINT Members; // Number of members (0 if not a structure)
 UINT Offset; // Offset from the start of structure (0 if not a structure member)
 LPCSTR Name; // Name of type, can be NULL
} D3D12_SHADER_TYPE_DESC;

typedef D3D_TESSELLATOR_DOMAIN D3D12_TESSELLATOR_DOMAIN;

typedef D3D_TESSELLATOR_PARTITIONING D3D12_TESSELLATOR_PARTITIONING;

typedef D3D_TESSELLATOR_OUTPUT_PRIMITIVE D3D12_TESSELLATOR_OUTPUT_PRIMITIVE;

typedef struct _D3D12_SHADER_DESC
{
 UINT Version; // Shader version
 LPCSTR Creator; // Creator string
 UINT Flags; // Shader compilation/parse flags
 
 UINT ConstantBuffers; // Number of constant buffers
 UINT BoundResources; // Number of bound resources
 UINT InputParameters; // Number of parameters in the input signature
 UINT OutputParameters; // Number of parameters in the output signature

 UINT InstructionCount; // Number of emitted instructions
 UINT TempRegisterCount; // Number of temporary registers used 
 UINT TempArrayCount; // Number of temporary arrays used
 UINT DefCount; // Number of constant defines 
 UINT DclCount; // Number of declarations (input + output)
 UINT TextureNormalInstructions; // Number of non-categorized texture instructions
 UINT TextureLoadInstructions; // Number of texture load instructions
 UINT TextureCompInstructions; // Number of texture comparison instructions
 UINT TextureBiasInstructions; // Number of texture bias instructions
 UINT TextureGradientInstructions; // Number of texture gradient instructions
 UINT FloatInstructionCount; // Number of floating point arithmetic instructions used
 UINT IntInstructionCount; // Number of signed integer arithmetic instructions used
 UINT UintInstructionCount; // Number of unsigned integer arithmetic instructions used
 UINT StaticFlowControlCount; // Number of static flow control instructions used
 UINT DynamicFlowControlCount; // Number of dynamic flow control instructions used
 UINT MacroInstructionCount; // Number of macro instructions used
 UINT ArrayInstructionCount; // Number of array instructions used
 UINT CutInstructionCount; // Number of cut instructions used
 UINT EmitInstructionCount; // Number of emit instructions used
 D3D_PRIMITIVE_TOPOLOGY GSOutputTopology; // Geometry shader output topology
 UINT GSMaxOutputVertexCount; // Geometry shader maximum output vertex count
 D3D_PRIMITIVE InputPrimitive; // GS/HS input primitive
 UINT PatchConstantParameters; // Number of parameters in the patch constant signature
 UINT cGSInstanceCount; // Number of Geometry shader instances
 UINT cControlPoints; // Number of control points in the HS->DS stage
 D3D_TESSELLATOR_OUTPUT_PRIMITIVE HSOutputPrimitive; // Primitive output by the tessellator
 D3D_TESSELLATOR_PARTITIONING HSPartitioning; // Partitioning mode of the tessellator
 D3D_TESSELLATOR_DOMAIN TessellatorDomain; // Domain of the tessellator (quad, tri, isoline)
 // instruction counts
 UINT cBarrierInstructions; // Number of barrier instructions in a compute shader
 UINT cInterlockedInstructions; // Number of interlocked instructions
 UINT cTextureStoreInstructions; // Number of texture writes
} D3D12_SHADER_DESC;

typedef struct _D3D12_SHADER_INPUT_BIND_DESC
{
 LPCSTR Name; // Name of the resource
 D3D_SHADER_INPUT_TYPE Type; // Type of resource (e.g. texture, cbuffer, etc.)
 UINT BindPoint; // Starting bind point
 UINT BindCount; // Number of contiguous bind points (for arrays)

 UINT uFlags; // Input binding flags
 D3D_RESOURCE_RETURN_TYPE ReturnType; // Return type (if texture)
 D3D_SRV_DIMENSION Dimension; // Dimension (if texture)
 UINT NumSamples; // Number of samples (0 if not MS texture)
 UINT Space; // Register space
 UINT uID; // Range ID in the bytecode
} D3D12_SHADER_INPUT_BIND_DESC;

#define D3D_SHADER_REQUIRES_DOUBLES 0x00000001
#define D3D_SHADER_REQUIRES_EARLY_DEPTH_STENCIL 0x00000002
#define D3D_SHADER_REQUIRES_UAVS_AT_EVERY_STAGE 0x00000004
#define D3D_SHADER_REQUIRES_64_UAVS 0x00000008
#define D3D_SHADER_REQUIRES_MINIMUM_PRECISION 0x00000010
#define D3D_SHADER_REQUIRES_11_1_DOUBLE_EXTENSIONS 0x00000020
#define D3D_SHADER_REQUIRES_11_1_SHADER_EXTENSIONS 0x00000040
#define D3D_SHADER_REQUIRES_LEVEL_9_COMPARISON_FILTERING 0x00000080
#define D3D_SHADER_REQUIRES_TILED_RESOURCES 0x00000100
#define D3D_SHADER_REQUIRES_STENCIL_REF 0x00000200
#define D3D_SHADER_REQUIRES_INNER_COVERAGE 0x00000400
#define D3D_SHADER_REQUIRES_TYPED_UAV_LOAD_ADDITIONAL_FORMATS 0x00000800
#define D3D_SHADER_REQUIRES_ROVS 0x00001000
#define D3D_SHADER_REQUIRES_VIEWPORT_AND_RT_ARRAY_INDEX_FROM_ANY_SHADER_FEEDING_RASTERIZER 0x00002000


typedef struct _D3D12_LIBRARY_DESC
{
 LPCSTR Creator; // The name of the originator of the library.
 UINT Flags; // Compilation flags.
 UINT FunctionCount; // Number of functions exported from the library.
} D3D12_LIBRARY_DESC;

typedef struct _D3D12_FUNCTION_DESC
{
 UINT Version; // Shader version
 LPCSTR Creator; // Creator string
 UINT Flags; // Shader compilation/parse flags
 
 UINT ConstantBuffers; // Number of constant buffers
 UINT BoundResources; // Number of bound resources

 UINT InstructionCount; // Number of emitted instructions
 UINT TempRegisterCount; // Number of temporary registers used 
 UINT TempArrayCount; // Number of temporary arrays used
 UINT DefCount; // Number of constant defines 
 UINT DclCount; // Number of declarations (input + output)
 UINT TextureNormalInstructions; // Number of non-categorized texture instructions
 UINT TextureLoadInstructions; // Number of texture load instructions
 UINT TextureCompInstructions; // Number of texture comparison instructions
 UINT TextureBiasInstructions; // Number of texture bias instructions
 UINT TextureGradientInstructions; // Number of texture gradient instructions
 UINT FloatInstructionCount; // Number of floating point arithmetic instructions used
 UINT IntInstructionCount; // Number of signed integer arithmetic instructions used
 UINT UintInstructionCount; // Number of unsigned integer arithmetic instructions used
 UINT StaticFlowControlCount; // Number of static flow control instructions used
 UINT DynamicFlowControlCount; // Number of dynamic flow control instructions used
 UINT MacroInstructionCount; // Number of macro instructions used
 UINT ArrayInstructionCount; // Number of array instructions used
 UINT MovInstructionCount; // Number of mov instructions used
 UINT MovcInstructionCount; // Number of movc instructions used
 UINT ConversionInstructionCount; // Number of type conversion instructions used
 UINT BitwiseInstructionCount; // Number of bitwise arithmetic instructions used
 D3D_FEATURE_LEVEL MinFeatureLevel; // Min target of the function byte code
 UINT64 RequiredFeatureFlags; // Required feature flags

 LPCSTR Name; // Function name
 INT FunctionParameterCount; // Number of logical parameters in the function signature (not including return)
 BOOL HasReturn; // TRUE, if function returns a value, false - it is a subroutine
 BOOL Has10Level9VertexShader; // TRUE, if there is a 10L9 VS blob
 BOOL Has10Level9PixelShader; // TRUE, if there is a 10L9 PS blob
} D3D12_FUNCTION_DESC;

typedef struct _D3D12_PARAMETER_DESC
{
 LPCSTR Name; // Parameter name.
 LPCSTR SemanticName; // Parameter semantic name (+index).
 D3D_SHADER_VARIABLE_TYPE Type; // Element type.
 D3D_SHADER_VARIABLE_CLASS Class; // Scalar/Vector/Matrix.
 UINT Rows; // Rows are for matrix parameters.
 UINT Columns; // Components or Columns in matrix.
 D3D_INTERPOLATION_MODE InterpolationMode; // Interpolation mode.
 D3D_PARAMETER_FLAGS Flags; // Parameter modifiers.

 UINT FirstInRegister; // The first input register for this parameter.
 UINT FirstInComponent; // The first input register component for this parameter.
 UINT FirstOutRegister; // The first output register for this parameter.
 UINT FirstOutComponent; // The first output register component for this parameter.
} D3D12_PARAMETER_DESC;


// Interfaces ////////////////////////////////////////////////////////////////

typedef interface ID3D12ShaderReflectionType ID3D12ShaderReflectionType;
typedef interface ID3D12ShaderReflectionType *LPD3D12SHADERREFLECTIONTYPE;

typedef interface ID3D12ShaderReflectionVariable ID3D12ShaderReflectionVariable;
typedef interface ID3D12ShaderReflectionVariable *LPD3D12SHADERREFLECTIONVARIABLE;

typedef interface ID3D12ShaderReflectionConstantBuffer ID3D12ShaderReflectionConstantBuffer;
typedef interface ID3D12ShaderReflectionConstantBuffer *LPD3D12SHADERREFLECTIONCONSTANTBUFFER;

typedef interface ID3D12ShaderReflection ID3D12ShaderReflection;
typedef interface ID3D12ShaderReflection *LPD3D12SHADERREFLECTION;

typedef interface ID3D12LibraryReflection ID3D12LibraryReflection;
typedef interface ID3D12LibraryReflection *LPD3D12LIBRARYREFLECTION;

typedef interface ID3D12FunctionReflection ID3D12FunctionReflection;
typedef interface ID3D12FunctionReflection *LPD3D12FUNCTIONREFLECTION;

typedef interface ID3D12FunctionParameterReflection ID3D12FunctionParameterReflection;
typedef interface ID3D12FunctionParameterReflection *LPD3D12FUNCTIONPARAMETERREFLECTION;


// {E913C351-783D-48CA-A1D1-4F306284AD56}
interface DECLSPEC_UUID("E913C351-783D-48CA-A1D1-4F306284AD56") ID3D12ShaderReflectionType;
DEFINE_GUID(IID_ID3D12ShaderReflectionType, 
0xe913c351, 0x783d, 0x48ca, 0xa1, 0xd1, 0x4f, 0x30, 0x62, 0x84, 0xad, 0x56);

#undef INTERFACE
#define INTERFACE ID3D12ShaderReflectionType

DECLARE_INTERFACE(ID3D12ShaderReflectionType)
{
 STDMETHOD(GetDesc)(THIS_ _Out_ D3D12_SHADER_TYPE_DESC *pDesc) PURE;
 
 STDMETHOD_(ID3D12ShaderReflectionType*, GetMemberTypeByIndex)(THIS_ _In_ UINT Index) PURE;
 STDMETHOD_(ID3D12ShaderReflectionType*, GetMemberTypeByName)(THIS_ _In_ LPCSTR Name) PURE;
 STDMETHOD_(LPCSTR, GetMemberTypeName)(THIS_ _In_ UINT Index) PURE;

 STDMETHOD(IsEqual)(THIS_ _In_ ID3D12ShaderReflectionType* pType) PURE;
 STDMETHOD_(ID3D12ShaderReflectionType*, GetSubType)(THIS) PURE;
 STDMETHOD_(ID3D12ShaderReflectionType*, GetBaseClass)(THIS) PURE;
 STDMETHOD_(UINT, GetNumInterfaces)(THIS) PURE;
 STDMETHOD_(ID3D12ShaderReflectionType*, GetInterfaceByIndex)(THIS_ _In_ UINT uIndex) PURE;
 STDMETHOD(IsOfType)(THIS_ _In_ ID3D12ShaderReflectionType* pType) PURE;
 STDMETHOD(ImplementsInterface)(THIS_ _In_ ID3D12ShaderReflectionType* pBase) PURE;
};

// {8337A8A6-A216-444A-B2F4-314733A73AEA}
interface DECLSPEC_UUID("8337A8A6-A216-444A-B2F4-314733A73AEA") ID3D12ShaderReflectionVariable;
DEFINE_GUID(IID_ID3D12ShaderReflectionVariable, 
0x8337a8a6, 0xa216, 0x444a, 0xb2, 0xf4, 0x31, 0x47, 0x33, 0xa7, 0x3a, 0xea);

#undef INTERFACE
#define INTERFACE ID3D12ShaderReflectionVariable

DECLARE_INTERFACE(ID3D12ShaderReflectionVariable)
{
 STDMETHOD(GetDesc)(THIS_ _Out_ D3D12_SHADER_VARIABLE_DESC *pDesc) PURE;
 
 STDMETHOD_(ID3D12ShaderReflectionType*, GetType)(THIS) PURE;
 STDMETHOD_(ID3D12ShaderReflectionConstantBuffer*, GetBuffer)(THIS) PURE;

 STDMETHOD_(UINT, GetInterfaceSlot)(THIS_ _In_ UINT uArrayIndex) PURE;
};

// {C59598B4-48B3-4869-B9B1-B1618B14A8B7}
interface DECLSPEC_UUID("C59598B4-48B3-4869-B9B1-B1618B14A8B7") ID3D12ShaderReflectionConstantBuffer;
DEFINE_GUID(IID_ID3D12ShaderReflectionConstantBuffer, 
0xc59598b4, 0x48b3, 0x4869, 0xb9, 0xb1, 0xb1, 0x61, 0x8b, 0x14, 0xa8, 0xb7);

#undef INTERFACE
#define INTERFACE ID3D12ShaderReflectionConstantBuffer

DECLARE_INTERFACE(ID3D12ShaderReflectionConstantBuffer)
{
 STDMETHOD(GetDesc)(THIS_ D3D12_SHADER_BUFFER_DESC *pDesc) PURE;
 
 STDMETHOD_(ID3D12ShaderReflectionVariable*, GetVariableByIndex)(THIS_ _In_ UINT Index) PURE;
 STDMETHOD_(ID3D12ShaderReflectionVariable*, GetVariableByName)(THIS_ _In_ LPCSTR Name) PURE;
};

// The ID3D12ShaderReflection IID may change from SDK version to SDK version
// if the reflection API changes. This prevents new code with the new API
// from working with an old binary. Recompiling with the new header
// will pick up the new IID.

// {5A58797D-A72C-478D-8BA2-EFC6B0EFE88E}
interface DECLSPEC_UUID("5A58797D-A72C-478D-8BA2-EFC6B0EFE88E") ID3D12ShaderReflection;
DEFINE_GUID(IID_ID3D12ShaderReflection, 
0x5a58797d, 0xa72c, 0x478d, 0x8b, 0xa2, 0xef, 0xc6, 0xb0, 0xef, 0xe8, 0x8e);

#undef INTERFACE
#define INTERFACE ID3D12ShaderReflection

DECLARE_INTERFACE_(ID3D12ShaderReflection, IUnknown)
{
 STDMETHOD(QueryInterface)(THIS_ _In_ REFIID iid,
 _Out_ LPVOID *ppv) PURE;
 STDMETHOD_(ULONG, AddRef)(THIS) PURE;
 STDMETHOD_(ULONG, Release)(THIS) PURE;

 STDMETHOD(GetDesc)(THIS_ _Out_ D3D12_SHADER_DESC *pDesc) PURE;
 
 STDMETHOD_(ID3D12ShaderReflectionConstantBuffer*, GetConstantBufferByIndex)(THIS_ _In_ UINT Index) PURE;
 STDMETHOD_(ID3D12ShaderReflectionConstantBuffer*, GetConstantBufferByName)(THIS_ _In_ LPCSTR Name) PURE;
 
 STDMETHOD(GetResourceBindingDesc)(THIS_ _In_ UINT ResourceIndex,
 _Out_ D3D12_SHADER_INPUT_BIND_DESC *pDesc) PURE;
 
 STDMETHOD(GetInputParameterDesc)(THIS_ _In_ UINT ParameterIndex,
 _Out_ D3D12_SIGNATURE_PARAMETER_DESC *pDesc) PURE;
 STDMETHOD(GetOutputParameterDesc)(THIS_ _In_ UINT ParameterIndex,
 _Out_ D3D12_SIGNATURE_PARAMETER_DESC *pDesc) PURE;
 STDMETHOD(GetPatchConstantParameterDesc)(THIS_ _In_ UINT ParameterIndex,
 _Out_ D3D12_SIGNATURE_PARAMETER_DESC *pDesc) PURE;

 STDMETHOD_(ID3D12ShaderReflectionVariable*, GetVariableByName)(THIS_ _In_ LPCSTR Name) PURE;

 STDMETHOD(GetResourceBindingDescByName)(THIS_ _In_ LPCSTR Name,
 _Out_ D3D12_SHADER_INPUT_BIND_DESC *pDesc) PURE;

 STDMETHOD_(UINT, GetMovInstructionCount)(THIS) PURE;
 STDMETHOD_(UINT, GetMovcInstructionCount)(THIS) PURE;
 STDMETHOD_(UINT, GetConversionInstructionCount)(THIS) PURE;
 STDMETHOD_(UINT, GetBitwiseInstructionCount)(THIS) PURE;
 
 STDMETHOD_(D3D_PRIMITIVE, GetGSInputPrimitive)(THIS) PURE;
 STDMETHOD_(BOOL, IsSampleFrequencyShader)(THIS) PURE;

 STDMETHOD_(UINT, GetNumInterfaceSlots)(THIS) PURE;
 STDMETHOD(GetMinFeatureLevel)(THIS_ _Out_ enum D3D_FEATURE_LEVEL* pLevel) PURE;

 STDMETHOD_(UINT, GetThreadGroupSize)(THIS_
 _Out_opt_ UINT* pSizeX,
 _Out_opt_ UINT* pSizeY,
 _Out_opt_ UINT* pSizeZ) PURE;

 STDMETHOD_(UINT64, GetRequiresFlags)(THIS) PURE;
};

// {8E349D19-54DB-4A56-9DC9-119D87BDB804}
interface DECLSPEC_UUID("8E349D19-54DB-4A56-9DC9-119D87BDB804") ID3D12LibraryReflection;
DEFINE_GUID(IID_ID3D12LibraryReflection, 
0x8e349d19, 0x54db, 0x4a56, 0x9d, 0xc9, 0x11, 0x9d, 0x87, 0xbd, 0xb8, 0x4);

#undef INTERFACE
#define INTERFACE ID3D12LibraryReflection

DECLARE_INTERFACE_(ID3D12LibraryReflection, IUnknown)
{
 STDMETHOD(QueryInterface)(THIS_ _In_ REFIID iid, _Out_ LPVOID * ppv) PURE;
 STDMETHOD_(ULONG, AddRef)(THIS) PURE;
 STDMETHOD_(ULONG, Release)(THIS) PURE;

 STDMETHOD(GetDesc)(THIS_ _Out_ D3D12_LIBRARY_DESC * pDesc) PURE;
 
 STDMETHOD_(ID3D12FunctionReflection *, GetFunctionByIndex)(THIS_ _In_ INT FunctionIndex) PURE;
};

// {1108795C-2772-4BA9-B2A8-D464DC7E2799}
interface DECLSPEC_UUID("1108795C-2772-4BA9-B2A8-D464DC7E2799") ID3D12FunctionReflection;
DEFINE_GUID(IID_ID3D12FunctionReflection, 
0x1108795c, 0x2772, 0x4ba9, 0xb2, 0xa8, 0xd4, 0x64, 0xdc, 0x7e, 0x27, 0x99);

#undef INTERFACE
#define INTERFACE ID3D12FunctionReflection

DECLARE_INTERFACE(ID3D12FunctionReflection)
{
 STDMETHOD(GetDesc)(THIS_ _Out_ D3D12_FUNCTION_DESC * pDesc) PURE;
 
 STDMETHOD_(ID3D12ShaderReflectionConstantBuffer *, GetConstantBufferByIndex)(THIS_ _In_ UINT BufferIndex) PURE;
 STDMETHOD_(ID3D12ShaderReflectionConstantBuffer *, GetConstantBufferByName)(THIS_ _In_ LPCSTR Name) PURE;
 
 STDMETHOD(GetResourceBindingDesc)(THIS_ _In_ UINT ResourceIndex,
 _Out_ D3D12_SHADER_INPUT_BIND_DESC * pDesc) PURE;
 
 STDMETHOD_(ID3D12ShaderReflectionVariable *, GetVariableByName)(THIS_ _In_ LPCSTR Name) PURE;

 STDMETHOD(GetResourceBindingDescByName)(THIS_ _In_ LPCSTR Name,
 _Out_ D3D12_SHADER_INPUT_BIND_DESC * pDesc) PURE;

 // Use D3D_RETURN_PARAMETER_INDEX to get description of the return value.
 STDMETHOD_(ID3D12FunctionParameterReflection *, GetFunctionParameter)(THIS_ _In_ INT ParameterIndex) PURE;
};

// {EC25F42D-7006-4F2B-B33E-02CC3375733F}
interface DECLSPEC_UUID("EC25F42D-7006-4F2B-B33E-02CC3375733F") ID3D12FunctionParameterReflection;
DEFINE_GUID(IID_ID3D12FunctionParameterReflection, 
0xec25f42d, 0x7006, 0x4f2b, 0xb3, 0x3e, 0x2, 0xcc, 0x33, 0x75, 0x73, 0x3f);

#undef INTERFACE
#define INTERFACE ID3D12FunctionParameterReflection

DECLARE_INTERFACE(ID3D12FunctionParameterReflection)
{
 STDMETHOD(GetDesc)(THIS_ _Out_ D3D12_PARAMETER_DESC * pDesc) PURE;
};


// APIs //////////////////////////////////////////////////////////////////////

#ifdef __cplusplus
extern "C" {
#endif //__cplusplus

#ifdef __cplusplus
}
#endif //__cplusplus
 
#endif //__D3D12SHADER_H__