VirtualRenderingSystem: depthbuffergl.h Source File

00001  /**********************************************************************
00002  VRS - The Virtual Rendering System
00003  Copyright (C) 2001 Computer Graphics Systems Group at the 
00004  Hasso-Plattner-Institute, Potsdam, Germany.
00005  This library is free software; you can redistribute it and/or 
00006  modify it under the terms of the GNU Lesser General Public 
00007  License as published by the Free Software Foundation; either 
00008  version 2.1 of the License, or (at your option) any later version.
00009  This library is distributed in the hope that it will be useful, but 
00010  WITHOUT ANY WARRANTY; without even the implied warranty of 
00011  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
00012  See the GNU Lesser General Public License for more details.
00013  You should have received a copy of the GNU Lesser+ General Public
00014  License along with this library; if not, write to the FreeSoftware 
00015  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA, 02111-1307, USA.
00016  **********************************************************************/
00017 // $Id: depthbuffergl.h 6757 2010-01-28 14:29:42Z Tassilo.Glander $
00018 // $Date: 2010-01-28 15:29:42 +0100 (Thu, 28 Jan 2010) $
00019 // $Revision: 6757 $
00020 // $State$
00021 // $Author: Tassilo.Glander $
00022 //
00023 // $Log$
00024 // Revision 1.19  2005/01/03 01:43:09  klimetschek
00025 // - modified win32 project layout, splitted vrs.vcproj into vrs_container, vrs_core, vrs_sg, vrs_image, vrs_opengl and vrs_io
00026 // - removed vrs.vcproj
00027 // minor things:
00028 // - added all glutexamples to vrs4glut.sln
00029 // - fixed some problems in glutexamples
00030 // - removed all project references from all VS projects (using solution wide project dependencies instead)
00031 //
00032 // Revision 1.18  2004/11/03 14:45:06  saar
00033 // Class comment changed (Doxygen style)
00034 //
00035 // Revision 1.17  2004/03/12 16:28:40  baumann
00036 // macros VRS_NAMESPACE_BEGIN/_END expanded and removed
00037 //
00038 // Revision 1.16  2004/01/19 11:43:58  baumann
00039 // serialization mechanism improved
00040 //
00041 // Revision 1.15  2004/01/19 07:28:02  baumann
00042 // serialization mechanism improved
00043 //
00044 // Revision 1.14  2003/11/18 09:59:26  kirsch
00045 // removed buffer clearing facility from color, depth, and stencilbuffergl attribute.
00046 // Use the framebuffergl - attribute instead.
00047 //
00048 // Revision 1.13  2003/11/07 14:19:25  kirsch
00049 // removed leading underscore from include guards
00050 //
00051 // Revision 1.12  2003/07/23 17:04:49  baumann
00052 // code cleanup (especially untabified)
00053 //
00054 // Revision 1.11  2002/10/29 10:32:52  baumann
00055 // macros VRS_CLASSNAME_* and VRS_IMPL_TYPEINFO_* removed
00056 //
00057 // Revision 1.10  2002/04/02 14:04:59  kersting
00058 // added persistency
00059 //
00060 // Revision 1.9  2002/03/03 21:44:25  kosta
00061 // VRS_TYPEINFO-macro rewritten
00062 //
00063 // Revision 1.8  2002/02/19 10:34:17  kosta
00064 // undone all changes since 2002-02-15
00065 //
00066 // Revision 1.5  2002/01/15 16:25:55  kosta
00067 // macros rewritten for a better namespace support
00068 //
00069 // Revision 1.4  2001/11/13 16:36:31  kirsch
00070 // changed line feed to unix style (removed control-M)
00071 //
00072 // Revision 1.3  2001/10/30 15:14:30  kirsch
00073 // cleaned up painter for OpenGL depth buffer
00074 //
00075 // Revision 1.2  2001/07/02 10:14:30  kersting
00076 // changes due to enum definition
00077 //
00078 // Revision 1.1.1.1  2001/06/08 08:09:21  kirsch
00079 // imported alpha-version by olli 
00080 //
00081 
00082 
00083 #ifndef VRS_OPENGL_DEPTHBUFFERGL_H
00084 #define VRS_OPENGL_DEPTHBUFFERGL_H
00085 
00086 #include <vrs/monoattribute.h>
00087 #include <vrs/opengl/openglconfig.h>
00088 
00089 namespace VRS {
00090 
00100 class VRS_CORE_API DepthBufferGL : public MonoAttribute {
00101 public:
00102     enum Operations {
00103         Unused           = 1 << 0,
00104         SetDepthMask     = 1 << 1,
00105         SetDepthTest     = 1 << 2, 
00106         SetDepthFunction = 1 << 3, 
00107         SetDepthRange    = 1 << 4
00108     };
00109     VRS_SERIALIZABLE_CLASS_ENUM(Operations);
00110     
00111     DepthBufferGL(
00112         int operations = DepthBufferGL::Unused, 
00113         bool depthMask = false,
00114         bool depthTest = true,
00115         GLenum depthFunction = GL_LESS,
00116         double minRange = 0.0,
00117         double maxRange = 1.0);
00118     
00122         DepthBufferGL(bool enabledForWriting, bool turnDepthTestOn=false);
00123     
00124         
00125     
00126     void enableOperation(int flagToBeAdded);
00127     void disableOperation(int flagToBeRemoved);
00128     int getOperations() const;
00129 
00132     void setDepthMask(bool onOff);
00133     bool getDepthMask() const;
00134 
00135     
00136         void setDepthTest(bool onOff);
00137     bool getDepthTest() const;
00138     
00149     void setDepthFunction (GLenum funct);
00150     GLenum getDepthFunction () const;
00151     
00152     void setRange(double minValue, double maxValue);
00153     void setRangeMin(double minValue);
00154     void setRangeMax(double maxValue);
00155     double getRangeMin() const;
00156     double getRangeMax() const;
00158     
00159     VRS_TYPEINFO(DepthBufferGL, MonoAttribute);
00160     VRS_SERIALIZABLE(DepthBufferGL);
00161 
00162 private:
00163     int op_;
00164     bool mask_;
00165     bool test_;
00166     GLenum fct_;
00167     GLclampd min_;
00168     GLclampd max_;
00169 };
00170 
00171 inline int DepthBufferGL::getOperations() const { return op_; }
00172 inline bool DepthBufferGL::getDepthMask() const { return mask_; }
00173 inline bool DepthBufferGL::getDepthTest() const { return test_; }
00174 inline GLenum DepthBufferGL::getDepthFunction() const { return fct_; }
00175 inline double DepthBufferGL::getRangeMin() const { return min_; }
00176 inline double DepthBufferGL::getRangeMax() const { return max_; }
00177 
00178 } // namespace VRS
00179 
00180 #endif // VRS_OPENGL_DEPTHBUFFERGL_H