X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Fgenerate.h;h=ef8ca10e35b198b5da4a38abc09708b08455f267;hb=bbe2fb7bc1384d7683f1795b5cfa9168df18c580;hp=aae570c4d7ad709e8f77cafc252c31b4cb2440cf;hpb=696a97bd7411d69953c1a9e4b5f3dfb4c1d848f1;p=libs%2Fgl.git

diff --git a/source/glsl/generate.h b/source/glsl/generate.h
index aae570c4..ef8ca10e 100644
--- a/source/glsl/generate.h
+++ b/source/glsl/generate.h
@@ -11,110 +11,62 @@ namespace Msp {
 namespace GL {
 namespace SL {
 
-class DeclarationCombiner: public BlockModifier
+/** Manipulates specialization constants.  If values are specified, turns
+specialization constants into normal constants.  Without values assigns
+automatic constant_ids to specialization constants. */
+class ConstantSpecializer: private TraversingVisitor
 {
 private:
-	bool toplevel;
-	std::map<std::string, std::vector<FunctionDeclaration *> > functions;
-	std::map<std::string, VariableDeclaration *> variables;
+	const std::map<std::string, int> *values;
 
 public:
-	DeclarationCombiner();
+	ConstantSpecializer();
 
-	using StageVisitor::visit;
-	virtual void visit(Block &);
-	virtual void visit(FunctionDeclaration &);
-	virtual void visit(VariableDeclaration &);
-};
+	void apply(Stage &, const std::map<std::string, int> *);
 
-class VariableResolver: public StageVisitor
-{
 private:
-	std::vector<Block *> blocks;
-	StructDeclaration *type;
-	bool anonymous;
-	std::string block_interface;
-	bool record_target;
-	VariableDeclaration *assignment_target;
-	bool self_referencing;
-
-public:
-	VariableResolver();
-
-	virtual void apply(Stage &);
-	using StageVisitor::visit;
-	virtual void visit(Block &);
-	virtual void visit(VariableReference &);
-	virtual void visit(MemberAccess &);
-	virtual void visit(BinaryExpression &);
-	virtual void visit(Assignment &);
-	virtual void visit(StructDeclaration &);
 	virtual void visit(VariableDeclaration &);
-	virtual void visit(InterfaceBlock &);
 };
 
-class FunctionResolver: public StageVisitor
-{
-private:
-	std::map<std::string, std::vector<FunctionDeclaration *> > functions;
+/** Materializes implicitly declared interfaces.
 
-public:
-	using StageVisitor::visit;
-	virtual void visit(FunctionCall &);
-	virtual void visit(FunctionDeclaration &);
-};
+Out variable declarations inside functions are moved to the global scope.
+
+Passthrough statements are processed, generating out variables to match in
+variables and copying values.
 
-class InterfaceGenerator: public BlockModifier
+Unresolved variables are looked up in the previous stage's out variables. */
+class InterfaceGenerator: private TraversingVisitor
 {
 private:
+	Stage *stage;
 	std::string in_prefix;
 	std::string out_prefix;
-	unsigned scope_level;
-	std::map<std::string, RefPtr<VariableDeclaration> > iface_declarations;
+	bool function_scope;
+	bool copy_block;
+	std::vector<VariableDeclaration *> declared_inputs;
+	Block *iface_target_block;
+	NodeList<Statement>::iterator iface_insert_point;
+	NodeList<Statement>::iterator assignment_insert_point;
+	std::set<Node *> nodes_to_remove;
 
 public:
 	InterfaceGenerator();
 
-	static std::string get_out_prefix(StageType);
-	virtual void apply(Stage &);
-	using StageVisitor::visit;
-	virtual void visit(Block &);
-	std::string change_prefix(const std::string &, const std::string &) const;
-	bool generate_interface(VariableDeclaration &, const std::string &, const std::string &);
-	ExpressionStatement &insert_assignment(const std::string &, Expression *);
-	virtual void visit(VariableReference &);
-	virtual void visit(VariableDeclaration &);
-	virtual void visit(Passthrough &);
-};
+	void apply(Stage &);
 
-class DeclarationReorderer: public StageVisitor
-{
 private:
-	enum DeclarationKind
-	{
-		NO_DECLARATION,
-		LAYOUT,
-		STRUCT,
-		VARIABLE,
-		FUNCTION
-	};
-
-	unsigned scope_level;
-	DeclarationKind kind;
-	std::set<Node *> ordered_funcs;
-	std::set<Node *> needed_funcs;
-
-public:
-	DeclarationReorderer();
-
-	using StageVisitor::visit;
+	static std::string get_out_prefix(Stage::Type);
+	std::string change_prefix(const std::string &, const std::string &) const;
 	virtual void visit(Block &);
-	virtual void visit(FunctionCall &);
-	virtual void visit(InterfaceLayout &) { kind = LAYOUT; }
-	virtual void visit(StructDeclaration &) { kind = STRUCT; }
+	VariableDeclaration *generate_interface(VariableDeclaration &, const std::string &, const std::string &);
+	InterfaceBlock *generate_interface(InterfaceBlock &);
+	ExpressionStatement &insert_assignment(const std::string &, Expression *);
+	virtual void visit(VariableReference &);
 	virtual void visit(VariableDeclaration &);
-	virtual void visit(InterfaceBlock &) { kind = VARIABLE; }
+	virtual void visit(InterfaceBlock &);
 	virtual void visit(FunctionDeclaration &);
+	virtual void visit(Passthrough &);
 };
 
 } // namespace SL