X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fprogramcompiler.h;h=6bac5386828d928ba2d9379366d48b8efb9ae020;hb=009918a51aa309eeceb6c02ecaebe45e8d357033;hp=1959618f30509ec76882c4a427745df83dcc7e25;hpb=73ce62f3b9c2bbfc1e655a9df343389a733dc795;p=libs%2Fgl.git

diff --git a/source/programcompiler.h b/source/programcompiler.h
index 1959618f..6bac5386 100644
--- a/source/programcompiler.h
+++ b/source/programcompiler.h
@@ -1,6 +1,7 @@
 #ifndef MSP_GL_PROGRAMCOMPILER_H_
 #define MSP_GL_PROGRAMCOMPILER_H_
 
+#include <set>
 #include "programparser.h"
 #include "programsyntax.h"
 
@@ -41,6 +42,87 @@ public:
 	};
 
 private:
+	struct VariableResolver: ProgramSyntax::TraversingVisitor
+	{
+		std::vector<ProgramSyntax::Block *> blocks;
+		ProgramSyntax::StructDeclaration *type;
+		bool anonymous;
+
+		VariableResolver();
+
+		virtual void visit(ProgramSyntax::Block &);
+		virtual void visit(ProgramSyntax::VariableReference &);
+		virtual void visit(ProgramSyntax::MemberAccess &);
+		virtual void visit(ProgramSyntax::BinaryExpression &);
+		virtual void visit(ProgramSyntax::StructDeclaration &);
+		virtual void visit(ProgramSyntax::VariableDeclaration &);
+		virtual void visit(ProgramSyntax::InterfaceBlock &);
+	};
+
+	struct InterfaceGenerator: ProgramSyntax::TraversingVisitor
+	{
+		ProgramSyntax::Context *context;
+		std::string in_prefix;
+		std::string out_prefix;
+		unsigned scope_level;
+		std::map<std::string, ProgramSyntax::NodePtr<ProgramSyntax::Node> > iface_declarations;
+		bool remove_node;
+		std::list<ProgramSyntax::NodePtr<ProgramSyntax::Node> > insert_nodes;
+
+		InterfaceGenerator();
+
+		static std::string get_out_prefix(ProgramSyntax::ContextType);
+		void visit(ProgramSyntax::Context &);
+		virtual void visit(ProgramSyntax::Block &);
+		std::string change_prefix(const std::string &, const std::string &) const;
+		bool generate_interface(ProgramSyntax::VariableDeclaration &, const std::string &, const std::string &);
+		void insert_assignment(const std::string &, ProgramSyntax::Expression *);
+		virtual void visit(ProgramSyntax::VariableReference &);
+		virtual void visit(ProgramSyntax::VariableDeclaration &);
+		virtual void visit(ProgramSyntax::Passthrough &);
+	};
+
+	struct VariableRenamer: ProgramSyntax::TraversingVisitor
+	{
+		virtual void visit(ProgramSyntax::VariableReference &);
+		virtual void visit(ProgramSyntax::VariableDeclaration &);
+	};
+
+	struct UnusedVariableLocator: ProgramSyntax::TraversingVisitor
+	{
+		ProgramSyntax::Context *context;
+		std::set<ProgramSyntax::Node *> unused_nodes;
+		std::map<ProgramSyntax::VariableDeclaration *, ProgramSyntax::Node *> assignments;
+		bool assignment;
+		ProgramSyntax::VariableDeclaration *assignment_target;
+
+		UnusedVariableLocator();
+
+		void visit(ProgramSyntax::Context &);
+		virtual void visit(ProgramSyntax::VariableReference &);
+		virtual void visit(ProgramSyntax::MemberAccess &);
+		virtual void visit(ProgramSyntax::BinaryExpression &);
+		virtual void visit(ProgramSyntax::ExpressionStatement &);
+		virtual void visit(ProgramSyntax::VariableDeclaration &);
+	};
+
+	struct NodeRemover: ProgramSyntax::TraversingVisitor
+	{
+		ProgramSyntax::Context *context;
+		std::set<ProgramSyntax::Node *> to_remove;
+		unsigned n_removed;
+		bool immutable_block;
+		bool remove_block;
+
+		NodeRemover();
+
+		void visit(ProgramSyntax::Context &);
+		virtual void visit(ProgramSyntax::Block &);
+		virtual void visit(ProgramSyntax::StructDeclaration &);
+		virtual void visit(ProgramSyntax::VariableDeclaration &);
+		virtual void visit(ProgramSyntax::InterfaceBlock &);
+	};
+
 	ProgramParser parser;
 	ProgramSyntax::Module *module;
 
@@ -52,6 +134,11 @@ public:
 	void add_shaders(Program &);
 
 private:
+	void process();
+	void generate(ProgramSyntax::Context &);
+	void optimize(ProgramSyntax::Context &);
+	static void inject_block(ProgramSyntax::Block &, const ProgramSyntax::Block &);
+	static void resolve_variables(ProgramSyntax::Context &);
 	std::string format_context(ProgramSyntax::Context &);
 };