X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Fcompiler.h;h=ec410c03ce45419c9a32de5cc6c0d5e27da5bd2a;hb=518f751d385b733adbf43fe4056403740709edec;hp=1f3cbee4698c466a7b88b562d56373f7f9b0fb6e;hpb=30465dd3b9f55ec42c4b19c3c2077eede7237a26;p=libs%2Fgl.git

diff --git a/source/glsl/compiler.h b/source/glsl/compiler.h
index 1f3cbee4..ec410c03 100644
--- a/source/glsl/compiler.h
+++ b/source/glsl/compiler.h
@@ -21,6 +21,13 @@ public:
 	};
 
 private:
+	enum OptimizeResult
+	{
+		NEXT_STAGE,
+		REDO_STAGE,
+		REDO_PREVIOUS
+	};
+
 	Features features;
 	Module *module;
 	std::vector<std::string> imported_names;
@@ -102,9 +109,9 @@ private:
 	variables. */
 	void generate(Stage &, Mode);
 
-	/** Applies optimizations to a stage.  The return value indicates if the
-	preceding stage should be processed again. */
-	bool optimize(Stage &);
+	/** Applies optimizations to a stage.  The return value indicates which
+	stage should be optimized next. */
+	OptimizeResult optimize(Stage &);
 
 	/** Performs final adjustments on a stage after compilation. */
 	void finalize(Stage &, Mode);