ShaderPreprocessor /

Public Member Functions

• ShaderPreprocessor ()
• std::string
  parse (const fs::path &sourcePath, std::set< fs::path > *includedFiles=nullptr)

  Parses and processes the shader source at sourcePath . If includedFiles is provided, this will be filled with paths to any files detected as #include ed.

  a preprocessed source string.

• std::string
  parse (const std::string &source, const fs::path &sourcePath, std::set< fs::path > *includedFiles=nullptr)

  Parses and processes the shader source source , which can be found at sourcePath . If includedFiles is provided, this will be filled with paths to any files detected as #include ed.

  a preprocessed source string.

• void
  addSearchDirectory (const fs::path &directory)

  Adds a custom search directory to the search list. The last directory added will be searched first.

• void
  removeSearchDirectory (const fs::path &directory)

  Removes a custom search directory from the search list.

• void
  addDefine (const std::string &define)

  Adds a define directive.

• void
  addDefine (const std::string &define, const std::string &value)

  Adds a define directive in the form of define=value

• void
  setDefines (const std::vector< std::pair< std::string, std::string >> &defines)

  Specifies all define directives to add to the shader sources, overwriting any existing defines.

• const std::vector< std::pair< std::string, std::string > > &
  getDefines () const

  Returns all of the define directives to add to the shader sources.

• std::vector< std::pair< std::string, std::string > > &
  getDefines ()

  Returns all of the define directives to add to the shader sources, modifiable version.

• void
  removeDefine (const std::string &define)

  Removes a define directive.

• void
  clearDefines ()

  Clears all define directives.

• void
  setVersion (int version)

  Specifies the #version directive to add to the shader sources (if it doesn't explicitly contain a #version directive).

• int
  getVersion () const

  Returns the version used for #version directives that was added with setVersion() .

• void
  setUseFilenameInLineDirectiveEnabled (bool enable)

  If set to true, the name of the currently processed file will be used in #line directives. Not to glsl spec, but works on some graphics cards like NVidia.

• bool
  isUseFilenameInLineDirectiveEnabled () const

  If true, the name of the currently processed file will be used in #line directives. Not to glsl spec, but works on some graphics cards like NVidia.

• SignalIncludeHandler &
  getSignalInclude ()

  Returns a Signal that the user can connect to in order to handle custom includes.