1 #ifndef MSP_GL_SL_FINALIZE_H_
2 #define MSP_GL_SL_FINALIZE_H_
11 /** Assigns offset layout qualifiers to struct members. */
12 class StructOrganizer: private TraversingVisitor
18 void apply(Stage &s) { s.content.visit(*this); }
21 virtual void visit(StructDeclaration &);
22 virtual void visit(VariableDeclaration &);
25 /** Assigns location and binding layout qualifiers to interface variables and
27 class LocationAllocator: private TraversingVisitor
38 bool alloc_new = true;
39 std::map<std::string, std::set<unsigned> > used_locations;
40 std::map<std::string, Uniform> uniforms;
41 std::map<unsigned, std::set<unsigned> > used_bindings;
42 std::vector<VariableDeclaration *> unplaced_variables;
43 std::vector<VariableDeclaration *> unbound_textures;
44 std::vector<VariableDeclaration *> unbound_blocks;
47 void apply(Module &, const Features &, bool = true);
51 void allocate_locations(const std::string &);
52 void bind_uniform(RefPtr<Layout> &, const std::string &, unsigned);
54 bool visit_uniform(const std::string &, RefPtr<Layout> &);
55 virtual void visit(VariableDeclaration &);
56 virtual void visit(FunctionDeclaration &) { }
59 /** Generates default precision declarations or removes precision declarations
60 according to the requirements of the target API. */
61 class PrecisionConverter: private TraversingVisitor
65 std::set<std::string> have_default;
66 NodeList<Statement>::iterator insert_point;
67 std::set<Node *> nodes_to_remove;
73 virtual void visit(Block &);
74 virtual void visit(Precision &);
75 virtual void visit(VariableDeclaration &);
78 /** Base class for feature converters. */
79 class FeatureConverter: protected TraversingVisitor
85 FeatureConverter() = default;
88 void apply(Stage &, const Features &);
90 virtual void apply() = 0;
92 void unsupported(const std::string &);
94 bool check_version(const Version &) const;
95 bool check_extension(bool Features::*) const;
98 /** Converts structures of the syntax tree to match a particular set of
100 class StructuralFeatureConverter: public FeatureConverter
103 VariableDeclaration *frag_out = 0;
104 NodeList<Statement>::iterator uniform_insert_point;
105 std::set<Node *> nodes_to_remove;
106 RefPtr<Expression> r_replaced_reference;
107 bool r_flattened_interface = false;
110 void apply(Stage &s, const Features &f) { FeatureConverter::apply(s, f); }
112 virtual void apply();
114 virtual void visit(Block &);
115 virtual void visit(RefPtr<Expression> &);
116 bool supports_stage(Stage::Type) const;
117 bool supports_unified_interface_syntax() const;
118 virtual void visit(VariableReference &);
119 virtual void visit(MemberAccess &);
120 virtual void visit(Assignment &);
121 bool supports_unified_sampling_functions() const;
122 virtual void visit(FunctionCall &);
123 bool supports_interface_blocks(const std::string &) const;
124 virtual void visit(VariableDeclaration &);
127 /** Converts qualifiers on variables and blocksto match a particular set of
129 class QualifierConverter: private FeatureConverter
132 void apply(Stage &s, const Features &f) { FeatureConverter::apply(s, f); }
134 virtual void apply();
136 bool supports_interface_layouts() const;
137 bool supports_stage_interface_layouts() const;
138 bool supports_centroid_sampling() const;
139 bool supports_sample_sampling() const;
140 bool supports_uniform_location() const;
141 bool supports_binding() const;
142 bool supports_interface_block_location() const;
143 virtual void visit(VariableDeclaration &);