D3DGetTraceInstructionOffsets

Retrieves the byte offsets for instructions within a section of shader code.

Syntax

HRESULT D3DGetTraceInstructionOffsets(
         LPCVOID pSrcData,
         SIZE_T SrcDataSize,
         UINT Flags,
         SIZE_T StartInstIndex,
         SIZE_T NumInsts,
         SIZE_T *pOffsets,
         SIZE_T *pTotalInsts
)  

Parameters

pSrcData
Type: LPCVOID 

[in] A pointer to the compiled shader data.

SrcDataSize
Type: SIZE_T 

[in] The size, in bytes, of the block of memory that pSrcData points to.

Flags
Type: UINT 

[in] A combination of the following flags that are combined by using a bitwise OR operation. The resulting value specifies how D3DGetTraceInstructionOffsets retrieves the instruction offsets.

StartInstIndex
Type: SIZE_T 

[in] The index of the instruction in the compiled shader data for which D3DGetTraceInstructionOffsets starts to retrieve the byte offsets.

NumInsts
Type: SIZE_T 

[in] The number of instructions for which D3DGetTraceInstructionOffsets retrieves the byte offsets.

pOffsets
Type: SIZE_T *

[out, optional] A pointer to a variable that receives the actual number of offsets.

pTotalInsts
Type: SIZE_T *

[out, optional] A pointer to a variable that receives the total number of instructions in the section of shader code.

Return value

Type: HRESULT 

Returns one of the Direct3D 11 return codes.

Remarks

A new kind of Microsoft High Level Shader Language (HLSL) debugging information from a program database (PDB) file uses instruction-byte offsets within a shader blob (arbitrary-length data buffer). You use D3DGetTraceInstructionOffsets to translate to and from instruction indexes.

Note

The D3dcompiler_44.dll or later version of the file contains the D3DGetTraceInstructionOffsets compiler function.

Requirements

Header: Declared in d3dcompiler.h.

Library: Use d3d11.lib.