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
36 Uniform(): location(-1), desc_set(0), bind_point(-1) { }
40 bool alloc_new = true;
41 std::map<std::string, std::set<unsigned> > used_locations;
42 std::map<std::string, Uniform> uniforms;
43 std::map<unsigned, std::set<unsigned> > used_bindings;
44 std::vector<VariableDeclaration *> unplaced_variables;
45 std::vector<VariableDeclaration *> unbound_textures;
46 std::vector<InterfaceBlock *> unbound_blocks;
49 void apply(Module &, const Features &, bool = true);
53 void allocate_locations(const std::string &);
54 void bind_uniform(RefPtr<Layout> &, const std::string &, unsigned);
56 bool visit_uniform(const std::string &, RefPtr<Layout> &);
57 virtual void visit(VariableDeclaration &);
58 virtual void visit(InterfaceBlock &);
59 virtual void visit(FunctionDeclaration &) { }
62 /** Generates default precision declarations or removes precision declarations
63 according to the requirements of the target API. */
64 class PrecisionConverter: private TraversingVisitor
68 std::set<std::string> have_default;
69 NodeList<Statement>::iterator insert_point;
70 std::set<Node *> nodes_to_remove;
76 virtual void visit(Block &);
77 virtual void visit(Precision &);
78 virtual void visit(VariableDeclaration &);
81 /** Base class for feature converters. */
82 class FeatureConverter: protected TraversingVisitor
88 FeatureConverter() = default;
91 void apply(Stage &, const Features &);
93 virtual void apply() = 0;
95 void unsupported(const std::string &);
97 bool check_version(const Version &) const;
98 bool check_extension(bool Features::*) const;
101 /** Converts structures of the syntax tree to match a particular set of
103 class StructuralFeatureConverter: public FeatureConverter
106 VariableDeclaration *frag_out = 0;
107 NodeList<Statement>::iterator uniform_insert_point;
108 std::set<Node *> nodes_to_remove;
109 RefPtr<Expression> r_replaced_reference;
110 bool r_flattened_interface = false;
113 void apply(Stage &s, const Features &f) { FeatureConverter::apply(s, f); }
115 virtual void apply();
117 virtual void visit(Block &);
118 virtual void visit(RefPtr<Expression> &);
119 bool supports_stage(Stage::Type) const;
120 bool supports_unified_interface_syntax() const;
121 virtual void visit(VariableReference &);
122 virtual void visit(InterfaceBlockReference &);
123 virtual void visit(MemberAccess &);
124 virtual void visit(Assignment &);
125 bool supports_unified_sampling_functions() const;
126 virtual void visit(FunctionCall &);
127 virtual void visit(VariableDeclaration &);
128 bool supports_interface_blocks(const std::string &) const;
129 virtual void visit(InterfaceBlock &);
132 /** Converts qualifiers on variables and blocksto match a particular set of
134 class QualifierConverter: private FeatureConverter
137 void apply(Stage &s, const Features &f) { FeatureConverter::apply(s, f); }
139 virtual void apply();
141 bool supports_interface_layouts() const;
142 bool supports_stage_interface_layouts() const;
143 bool supports_centroid_sampling() const;
144 bool supports_sample_sampling() const;
145 bool supports_uniform_location() const;
146 bool supports_binding() const;
147 virtual void visit(VariableDeclaration &);
148 bool supports_interface_block_location() const;
149 virtual void visit(InterfaceBlock &);