Class FxPreParser

Namespace

ShadowDusk.HLSL

Assembly

ShadowDusk.HLSL.dll

FX9 pre-parser: strips technique, pass, and sampler_state blocks from .fx source and extracts all FX9 metadata needed by the compilation pipeline. DXC rejects these constructs, so they must be removed before invoking DXC. Stripped output preserves original line numbers by replacing removed lines with blank lines. FxSourceMode selects how legacy D3D9 constructs in the shader body are treated: rewritten forward to SM4 for DXC (the default), or preserved verbatim for an SM1–3 backend (the FNA fx_2_0 target, compiled by vkd3d).

public sealed class FxPreParser

Inheritance

object

FxPreParser

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Methods

IsDirectX11Profile(string)

Returns true when profile (a recognized profile, already lowercased) is one MonoGame's DirectX_11 shader profile accepts. Anything else is below that target's floor and is rejected by mgfxc with "must be SM 4.0 level 9.1 or higher!"; ShadowDusk reports the same condition as SD0015. See the empirical note on the backing set.

public static bool IsDirectX11Profile(string profile)

Parameters

profile string

Returns

bool

IsKnownProfile(string)

Returns true when the given profile string (already lowercased) is a recognized shader profile.

public static bool IsKnownProfile(string profile)

Parameters

profile string

Returns

bool

LooksLikeProfile(string)

Returns true when token is SHAPED like a shader profile (a vs_/ps_/gs_/hs_/ds_/cs_ stage prefix immediately followed by a digit) REGARDLESS of whether it is a recognized profile. This distinguishes a typo'd real-shaped profile (ps_9_9) — which is unconditionally invalid and can be rejected without any macro expansion — from a macro NAME (PS_SHADERMODEL), which may still expand to a valid profile. It is NOT a substitute for IsKnownProfile(string): a profile-shaped token is not necessarily a real profile.

public static bool LooksLikeProfile(string token)

Parameters

token string

Returns

bool

Parse(string, string)

Parses an FX9 .fx source file, strips FX9-specific blocks, and extracts metadata, rewriting legacy D3D9 constructs forward to SM4 (RewriteToSm4).

public static Result<FxParseResult, FxParseError> Parse(string source, string sourceFile)

Parameters

source string

Full text of the .fx file.

sourceFile string

Display name used in diagnostics (file path or virtual name).

Returns

Result<FxParseResult, FxParseError>

Parse(string, string, FxSourceMode)

Parses an FX9 .fx source file, strips FX9-specific blocks, and extracts metadata.

public static Result<FxParseResult, FxParseError> Parse(string source, string sourceFile, FxSourceMode mode)

Parameters

source string

Full text of the .fx file.

sourceFile string

Display name used in diagnostics (file path or virtual name).

mode FxSourceMode

How legacy D3D9/SM3 constructs in the shader body are treated (rewritten forward for DXC, or preserved verbatim for an SM1–3 backend).

Returns

Result<FxParseResult, FxParseError>