X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fprojection.cpp;h=dd573da443eb7bcf5a305690cd456a450886eff7;hb=29f2d9da4ef0a0134c56bd2f8c7e6acac7773a61;hp=3a8baf84af3f492925366702b434a46a75e6a478;hpb=3f285d3f4fd0a6790bf1efa780284dc7ba2287a2;p=libs%2Fgl.git

diff --git a/source/projection.cpp b/source/projection.cpp
index 3a8baf84..dd573da4 100644
--- a/source/projection.cpp
+++ b/source/projection.cpp
@@ -1,20 +1,15 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <cmath>
-#include <GL/gl.h>
+#include "matrix.h"
 #include "projection.h"
 
 namespace Msp {
 namespace GL {
 
-void ortho(double left, double right, double bottom, double top, double near, double far)
+extern MatrixStack *active_stack;
+
+void ortho(double left, double right, double bottom, double top, double nearr, double farr)
 {
-	glOrtho(left, right, bottom, top, near, far);
+	*active_stack *= Matrix::ortho(left, right, bottom, top, nearr, farr);
 }
 
 void ortho_centered(double width, double height)
@@ -32,20 +27,20 @@ void ortho_topleft(double width, double height)
 	ortho(0, width, height, 0, 0, 1);
 }
 
-void frustum(double left, double right, double bottom, double top, double near, double far)
+void frustum(double left, double right, double bottom, double top, double nearr, double farr)
 {
-	glFrustum(left, right, bottom, top, near, far);
+	*active_stack *= Matrix::frustum(left, right, bottom, top, nearr, farr);
 }
 
-void frustum_centered(double width, double height, double near, double far)
+void frustum_centered(double width, double height, double nearr, double farr)
 {
-	glFrustum(-width/2, width/2, -height/2, height/2, near, far);
+	frustum(-width/2, width/2, -height/2, height/2, nearr, farr);
 }
 
-void perspective(double fov_y, double aspect, double near, double far)
+void perspective(double fov_y, double aspect, double nearr, double farr)
 {
-	double hh=tan(fov_y*M_PI/360)*near;
-	frustum(-hh*aspect, hh*aspect, -hh, hh, near, far);
+	double hh = tan(fov_y*M_PI/360)*nearr;
+	frustum(-hh*aspect, hh*aspect, -hh, hh, nearr, farr);
 }
 
 } // namespace GL