X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ftests.cpp;h=1a2a58352e2605a54669093c5cb4e2011557c774;hb=7f888de83aa5398fafaa7661547ee80395377b5c;hp=5b34bf69d9d37fc732c4f45c5ea1c55a41394be1;hpb=ceae2a27dfc58310c5bab7e3aa3fedf0fa9a1f49;p=libs%2Fgl.git

diff --git a/source/tests.cpp b/source/tests.cpp
index 5b34bf69..1a2a5835 100644
--- a/source/tests.cpp
+++ b/source/tests.cpp
@@ -1,7 +1,7 @@
 /* $Id$
 
 This file is part of libmspgl
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Copyright © 2007, 2010  Mikko Rasa, Mikkosoft Productions
 Distributed under the LGPL
 */
 
@@ -10,9 +10,29 @@ Distributed under the LGPL
 namespace Msp {
 namespace GL {
 
-void scissor(int left, int bottom, unsigned width, unsigned height)
+AlphaTest::AlphaTest():
+	pred(ALWAYS),
+	ref(0)
+{ }
+
+AlphaTest::AlphaTest(Predicate p, float r):
+	pred(p),
+	ref(r)
+{ }
+
+void AlphaTest::bind() const
 {
-	glScissor(left, bottom, width, height);
+	if(set_current(this))
+	{
+		glEnable(GL_ALPHA_TEST);
+		glAlphaFunc(pred, ref);
+	}
+}
+
+void AlphaTest::unbind()
+{
+	if(set_current(0))
+		glDisable(GL_ALPHA_TEST);
 }
 
 void alpha_func(Predicate func, float ref)
@@ -20,10 +40,82 @@ void alpha_func(Predicate func, float ref)
 	glAlphaFunc(func, ref);
 }
 
+
+DepthTest::DepthTest():
+	write(true),
+	pred(LESS)
+{ }
+
+DepthTest::DepthTest(Predicate p, bool w):
+	write(w),
+	pred(p)
+{ }
+
+void DepthTest::bind() const
+{
+	if(set_current(this))
+	{
+		glEnable(GL_DEPTH_TEST);
+		glDepthFunc(pred);
+		glDepthMask(write);
+	}
+}
+
+const DepthTest &DepthTest::lequal()
+{
+	static DepthTest test(LEQUAL);
+	return test;
+}
+
+void DepthTest::unbind()
+{
+	if(set_current(0))
+	{
+		glDisable(GL_DEPTH_TEST);
+		// Allow glClear(GL_DEPTH_BUFFER_BIT) to work
+		glDepthMask(true);
+	}
+}
+
 void depth_func(Predicate func)
 {
 	glDepthFunc(func);
 }
 
+
+ScissorTest::ScissorTest():
+	left(0),
+	bottom(0),
+	width(1),
+	height(1)
+{ }
+
+ScissorTest::ScissorTest(int l, int b, unsigned w, unsigned h):
+	left(l),
+	bottom(b),
+	width(w),
+	height(h)
+{ }
+
+void ScissorTest::bind() const
+{
+	if(set_current(this))
+	{
+		glEnable(GL_SCISSOR_TEST);
+		glScissor(left, bottom, width, height);
+	}
+}
+
+void ScissorTest::unbind()
+{
+	if(set_current(0))
+		glDisable(GL_SCISSOR_TEST);
+}
+
+void scissor(int left, int bottom, unsigned width, unsigned height)
+{
+	glScissor(left, bottom, width, height);
+}
+
 } // namespace GL
 } // namespace Msp