1 #ifndef MSP_GL_SL_COMPILER_H_
2 #define MSP_GL_SL_COMPILER_H_
5 #include <msp/datafile/collection.h>
6 #include <msp/io/base.h>
32 std::vector<std::string> imported_names;
34 std::map<std::string, int> spec_values;
37 /** Creates a compiler using features from the current OpenGL context. */
40 /** Creates a compiler targeting a specific set of features. */
41 Compiler(const Features &);
49 /** Sets the source code to be compiled. Only builtin imports are
51 void set_source(const std::string &, const std::string & = "<string>");
53 /** Loads source code from an I/O object. If a collection is used, imports
54 can be fetched from it. */
55 void load_source(IO::Base &, DataFile::Collection * = 0, const std::string & = "<file>");
57 /** Loads source code from an I/O object. Only builtin imports are
59 void load_source(IO::Base &, const std::string &);
61 /** Specializes the shader. All specialization constants are considered
62 specialized, even if they do not appear in the map. */
63 void specialize(const std::map<std::string, int> &);
65 /** Compiles the shader. */
68 /** Returns combined GLSL source for all shader stages. The result is
69 suitable for feeding back to the compiler. */
70 std::string get_combined_glsl() const;
72 /** Returns a list of compiled stage types. */
73 std::vector<Stage::Type> get_stages() const;
75 /** Returns GLSL source for a single shader stage. The result is standard
76 GLSL suitable for OpenGL or an external GLSL compiler. */
77 std::string get_stage_glsl(Stage::Type) const;
79 /** Returns a map of vertex attribute locations. If the target GLSL version
80 supports interface layouts, the map is empty (locations are included in the
82 const std::map<std::string, unsigned> &get_vertex_attributes() const;
84 /** Returns a map of fragment output locations. If the target GLSL version
85 supports interface layouts, the map is empty (locations are included in the
87 const std::map<std::string, unsigned> &get_fragment_outputs() const;
89 /** Returns the mapping of source indices to filenames. Can be used to
90 translate error messages. */
91 const SourceMap &get_source_map() const;
93 /** Returns a textual representation of the syntax tree for a shader stage.
94 Intended for debugging purposes. */
95 std::string get_stage_debug(Stage::Type) const;
98 /** Appends a module to the target, processing any imports found in it. */
99 void append_module(Module &, DataFile::Collection *);
101 /** Appends a single stage to the matching stage of the target. */
102 void append_stage(Stage &);
104 /// Imports a module by name and appends it to the target. */
105 void import(DataFile::Collection *, const std::string &);
107 /** Generates any implicitly defines syntactic structures and resolves
109 void generate(Stage &, Mode);
111 /** Applies optimizations to a stage. The return value indicates which
112 stage should be optimized next. */
113 OptimizeResult optimize(Stage &);
115 /** Performs final adjustments on a stage after compilation. */
116 void finalize(Stage &, Mode);
118 static void inject_block(Block &, const Block &);