Class RdefReader

Namespace

ShadowDusk.Core.Reflection

Assembly

ShadowDusk.Core.dll

Pure-managed DXBC reflection: parses the DXBC container's RDEF (resource definition) and ISGN/OSGN (signature) chunks into the same ReflectedEffect shape D3DReflect produced — the SM4/SM5 sibling of CtabReader (Phase 18 Track A). This removes the Windows-only d3dcompiler_47 P/Invoke from the DirectX pipeline, so DX11 .mgfx compiles run on Linux/macOS (and, being dependency-free managed code, in WASM).

Layout sources: the DXBC container / RDEF format is stable and documented (Wine's d3dcompiler reflection implementation, vkd3d-shader's tpf/dxbc writers, and public DXBC container format references). Field semantics were verified byte-level against d3dcompiler_47's own emission and ID3D11ShaderReflection's readback; oracle parity is enforced by DxbcReflectionParityTests (managed output deeply equal to D3DReflect's for both d3dcompiler_47 and vkd3d DXBC, on Windows).

Behavioral quirks preserved deliberately (the bar is "identical to D3DReflect + the previous extractor", not "looks right"):

• Array variables report a 16-byte-aligned size (the previous extractor rounded D3DReflect's unpadded trailing element up; see VariableReflection).
• Empty constant buffers are dropped — mgfxc emits no cbuffer record for an empty $Globals (e.g. a texture-only PS), so the DX .mgfx must match.
• D3DReflect fixes up signature system values fxc stores as 0 by semantic name (SV_Target → Target, SV_Depth → Depth, …) — reproduced in FixUpSystemValue(uint, string).

public static class RdefReader

Inheritance

object

RdefReader

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

Read(ReadOnlySpan<byte>, string)

Parses the reflection chunks of dxbc into a ReflectedEffect (with Parameters left empty — the parameter list is assembled downstream, exactly as before). Fails (never throws) when the blob is not a DXBC container or its reflection data is malformed.

public static Result<ReflectedEffect, ShaderError> Read(ReadOnlySpan<byte> dxbc, string sourceFile = "")

Parameters

dxbc ReadOnlySpan<byte>

A complete SM4/SM5 DXBC module.

sourceFile string

The source file to attribute errors to (may be empty).

Returns

Result<ReflectedEffect, ShaderError>