X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fprogramcompiler.h;h=978b01e2d159135d3dcf5dbb7b0ef6b4b5bb6c0d;hb=961715848c111907b5f443c5b545a429b40583e6;hp=9a825489df87e27178cfc0b0e775de0ff6b9ebbc;hpb=6e6ee01b68056b23c6709d7f60396710dd7623b9;p=libs%2Fgl.git

diff --git a/source/programcompiler.h b/source/programcompiler.h
index 9a825489..978b01e2 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"
 
@@ -21,8 +22,14 @@ public:
 
 		Formatter();
 
-		std::string format_expression(ProgramSyntax::Expression &);
 		virtual void visit(ProgramSyntax::Block &);
+		virtual void visit(ProgramSyntax::Literal &);
+		virtual void visit(ProgramSyntax::ParenthesizedExpression &);
+		virtual void visit(ProgramSyntax::VariableReference &);
+		virtual void visit(ProgramSyntax::MemberAccess &);
+		virtual void visit(ProgramSyntax::UnaryExpression &);
+		virtual void visit(ProgramSyntax::BinaryExpression &);
+		virtual void visit(ProgramSyntax::FunctionCall &);
 		virtual void visit(ProgramSyntax::ExpressionStatement &);
 		virtual void visit(ProgramSyntax::Layout &);
 		virtual void visit(ProgramSyntax::StructDeclaration &);
@@ -35,6 +42,75 @@ 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
+	{
+		std::set<ProgramSyntax::VariableDeclaration *> unused_variables;
+
+		virtual void visit(ProgramSyntax::VariableReference &);
+		virtual void visit(ProgramSyntax::MemberAccess &);
+		virtual void visit(ProgramSyntax::VariableDeclaration &);
+	};
+
+	struct NodeRemover: ProgramSyntax::TraversingVisitor
+	{
+		std::set<ProgramSyntax::Node *> to_remove;
+		unsigned n_removed;
+		bool immutable_block;
+		bool remove_block;
+
+		NodeRemover();
+
+		virtual void visit(ProgramSyntax::Block &);
+		virtual void visit(ProgramSyntax::StructDeclaration &);
+		virtual void visit(ProgramSyntax::InterfaceBlock &);
+	};
+
 	ProgramParser parser;
 	ProgramSyntax::Module *module;
 
@@ -46,6 +122,10 @@ public:
 	void add_shaders(Program &);
 
 private:
+	void process();
+	void process(ProgramSyntax::Context &);
+	static void inject_block(ProgramSyntax::Block &, const ProgramSyntax::Block &);
+	static void resolve_variables(ProgramSyntax::Context &);
 	std::string format_context(ProgramSyntax::Context &);
 };