X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fwindingtest.cpp;h=0b8218adbf2773971b589c89cccefa134d403788;hp=401d68035af46703e8496b6eaff9e452026b8ae2;hb=3d8438922e24b787587d0c8f1883c5567a4af573;hpb=f14435e58bfa0fa697a06ba9a454bb30cd37d9d8

diff --git a/source/windingtest.cpp b/source/windingtest.cpp
index 401d6803..0b8218ad 100644
--- a/source/windingtest.cpp
+++ b/source/windingtest.cpp
@@ -1,3 +1,4 @@
+#include <msp/strings/format.h>
 #include "windingtest.h"
 
 namespace Msp {
@@ -10,16 +11,14 @@ void operator>>(const LexicalConverter &conv, FaceWinding &winding)
 	else if(conv.get()=="COUNTERCLOCKWISE")
 		winding = COUNTERCLOCKWISE;
 	else
-		throw InvalidParameterValue("Invalid FaceWinding");
+		throw lexical_error(format("conversion of '%s' to FaceWinding", conv.get()));
 }
 
 WindingTest::WindingTest():
-	test(false),
 	winding(COUNTERCLOCKWISE)
 { }
 
 WindingTest::WindingTest(FaceWinding w):
-	test(true),
 	winding(w)
 { }
 
@@ -27,13 +26,8 @@ void WindingTest::bind() const
 {
 	if(set_current(this))
 	{
-		if(test)
-		{
-			glEnable(GL_CULL_FACE);
-			glFrontFace(winding);
-		}
-		else
-			glDisable(GL_CULL_FACE);
+		glEnable(GL_CULL_FACE);
+		glFrontFace(winding);
 	}
 }
 
@@ -43,13 +37,21 @@ void WindingTest::unbind()
 		glDisable(GL_CULL_FACE);
 }
 
-WindingTest &WindingTest::clockwise()
+const WindingTest &WindingTest::get_reverse() const
+{
+	if(winding==CLOCKWISE)
+		return counterclockwise();
+	else
+		return clockwise();
+}
+
+const WindingTest &WindingTest::clockwise()
 {
 	static WindingTest test(CLOCKWISE);
 	return test;
 }
 
-WindingTest &WindingTest::counterclockwise()
+const WindingTest &WindingTest::counterclockwise()
 {
 	static WindingTest test(COUNTERCLOCKWISE);
 	return test;