Drop Id tags and copyright notices from files

[libs/gl.git] / source / projection.cpp

diff --git a/source/projection.cpp b/source/projection.cpp
index 2c234525ce63e0240bdc891f6d56c29be0484dcd..dd573da443eb7bcf5a305690cd456a450886eff7 100644 (file)
--- 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.h"
+#include "matrix.h"
 #include "projection.h"
 
 namespace Msp {
 namespace GL {
 
+extern MatrixStack *active_stack;
+
 void ortho(double left, double right, double bottom, double top, double nearr, double farr)
 {
-       glOrtho(left, right, bottom, top, nearr, farr);
+       *active_stack *= Matrix::ortho(left, right, bottom, top, nearr, farr);
 }
 
 void ortho_centered(double width, double height)
@@ -34,17 +29,17 @@ void ortho_topleft(double width, double height)
 
 void frustum(double left, double right, double bottom, double top, double nearr, double farr)
 {
-       glFrustum(left, right, bottom, top, nearr, farr);
+       *active_stack *= Matrix::frustum(left, right, bottom, top, nearr, farr);
 }
 
 void frustum_centered(double width, double height, double nearr, double farr)
 {
-       glFrustum(-width/2, width/2, -height/2, height/2, nearr, farr);
+       frustum(-width/2, width/2, -height/2, height/2, nearr, farr);
 }
 
 void perspective(double fov_y, double aspect, double nearr, double farr)
 {
-       double hh=tan(fov_y*M_PI/360)*nearr;
+       double hh = tan(fov_y*M_PI/360)*nearr;
        frustum(-hh*aspect, hh*aspect, -hh, hh, nearr, farr);
 }