X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Foptimize.h;h=ea61b671d2e1ea2a68b10c4b4682e8cb6a560260;hb=72a02f2f3f1c454aa670b256262d7bc0541222e3;hp=6d4b1bcb5d2c2e5d883d7ab640390481c8c7e84e;hpb=4790c6a06072814b21f5b3f24b53c6936915308d;p=libs%2Fgl.git

diff --git a/source/glsl/optimize.h b/source/glsl/optimize.h
index 6d4b1bcb..ea61b671 100644
--- a/source/glsl/optimize.h
+++ b/source/glsl/optimize.h
@@ -9,9 +9,25 @@ namespace Msp {
 namespace GL {
 namespace SL {
 
+/** Assigns values to specialization constants, turning them into normal
+constants. */
+class ConstantSpecializer: private TraversingVisitor
+{
+private:
+	const std::map<std::string, int> *values;
+
+public:
+	ConstantSpecializer();
+
+	void apply(Stage &, const std::map<std::string, int> &);
+
+private:
+	virtual void visit(VariableDeclaration &);
+};
+
 /** Finds functions which are candidates for inlining.  Currently this means
 functions which have no flow control statements, no more than one return
-statement, and are only called once. */
+statement, and are either builtins or only called once. */
 class InlineableFunctionLocator: private TraversingVisitor
 {
 private:
@@ -23,7 +39,7 @@ private:
 public:
 	InlineableFunctionLocator();
 
-	const std::set<FunctionDeclaration *> &apply(Stage &s) { s.content.visit(*this); return inlineable; }
+	std::set<FunctionDeclaration *> apply(Stage &s) { s.content.visit(*this); return inlineable; }
 
 private:
 	virtual void visit(FunctionCall &);
@@ -41,7 +57,6 @@ class InlineContentInjector: private TraversingVisitor
 private:
 	enum Pass
 	{
-		DEPENDS,
 		REFERENCED,
 		INLINE,
 		RENAME
@@ -49,7 +64,6 @@ private:
 
 	FunctionDeclaration *source_func;
 	Block staging_block;
-	std::string remap_prefix;
 	Pass pass;
 	RefPtr<Statement> r_inlined_statement;
 	std::set<Node *> dependencies;
@@ -59,7 +73,7 @@ private:
 public:
 	InlineContentInjector();
 
-	const std::string &apply(Stage &, FunctionDeclaration &, Block &, const NodeList<Statement>::iterator &, FunctionCall &);
+	std::string apply(Stage &, FunctionDeclaration &, Block &, const NodeList<Statement>::iterator &, FunctionCall &);
 
 private:
 	virtual void visit(VariableReference &);
@@ -110,7 +124,7 @@ private:
 		bool trivial;
 		bool available;
 
-		ExpressionInfo();
+		ExpressionInfo(): expression(0), assign_scope(0), inline_point(0), trivial(false), available(true) { }
 	};
 
 	std::map<Assignment::Target, ExpressionInfo> expressions;
@@ -213,6 +227,26 @@ private:
 	virtual void visit(Iteration &);
 };
 
+class UnreachableCodeRemover: private TraversingVisitor
+{
+private:
+	bool reachable;
+	std::set<Node *> unreachable_nodes;
+
+public:
+	UnreachableCodeRemover();
+
+	virtual bool apply(Stage &);
+
+private:
+	virtual void visit(Block &);
+	virtual void visit(FunctionDeclaration &);
+	virtual void visit(Conditional &);
+	virtual void visit(Iteration &);
+	virtual void visit(Return &) { reachable = false; }
+	virtual void visit(Jump &) { reachable = false; }
+};
+
 /** Removes types which are not used anywhere. */
 class UnusedTypeRemover: private TraversingVisitor
 {
@@ -223,11 +257,7 @@ public:
 	bool apply(Stage &);
 
 private:
-	virtual void visit(Literal &);
-	virtual void visit(UnaryExpression &);
-	virtual void visit(BinaryExpression &);
-	virtual void visit(TernaryExpression &);
-	virtual void visit(FunctionCall &);
+	virtual void visit(RefPtr<Expression> &);
 	virtual void visit(BasicTypeDeclaration &);
 	virtual void visit(ImageTypeDeclaration &);
 	virtual void visit(StructDeclaration &);
@@ -270,6 +300,9 @@ private:
 	Assignment *r_assignment;
 	bool assignment_target;
 	bool r_side_effects;
+	bool in_struct;
+	bool composite_reference;
+	Assignment::Target r_reference;
 	std::set<Node *> unused_nodes;
 
 public:
@@ -281,14 +314,17 @@ private:
 	void referenced(const Assignment::Target &, Node &);
 	virtual void visit(VariableReference &);
 	virtual void visit(InterfaceBlockReference &);
+	void visit_composite(Expression &);
+	virtual void visit(MemberAccess &);
+	virtual void visit(Swizzle &);
 	virtual void visit(UnaryExpression &);
 	virtual void visit(BinaryExpression &);
 	virtual void visit(Assignment &);
+	virtual void visit(TernaryExpression &);
 	virtual void visit(FunctionCall &);
 	void record_assignment(const Assignment::Target &, Node &);
 	virtual void visit(ExpressionStatement &);
-	// Ignore structs because their members can't be accessed directly.
-	virtual void visit(StructDeclaration &) { }
+	virtual void visit(StructDeclaration &);
 	virtual void visit(VariableDeclaration &);
 	virtual void visit(InterfaceBlock &);
 	void merge_variables(const BlockVariableMap &);