+ struct Uniform
+ {
+ int location;
+ int desc_set;
+ int bind_point;
+
+ Uniform(): location(-1), desc_set(-1), bind_point(-1) { }
+ };
+
+ std::map<std::string, std::set<unsigned> > used_locations;
+ std::map<std::string, Uniform> uniforms;
+ std::map<unsigned, std::set<unsigned> > used_bindings;
+ std::vector<VariableDeclaration *> unplaced_variables;
+ std::vector<VariableDeclaration *> unbound_textures;
+ std::vector<InterfaceBlock *> unbound_blocks;
+
+public:
+ void apply(Module &, const Features &);
+private:
+ void apply(Stage &);
+
+ void allocate_locations(const std::string &);
+ void bind_uniform(RefPtr<Layout> &, const std::string &, unsigned);
+ void add_layout_value(RefPtr<Layout> &, const std::string &, unsigned);
+
+ virtual void visit(VariableDeclaration &);
+ virtual void visit(InterfaceBlock &);
+ virtual void visit(FunctionDeclaration &) { }
+};
+
+/** Generates default precision declarations or removes precision declarations
+according to the requirements of the target API. */
+class PrecisionConverter: private TraversingVisitor
+{
+private:
+ Stage *stage;
+ std::set<std::string> have_default;
+ NodeList<Statement>::iterator insert_point;