00001 /*---------------------------------------------------------------------------*\ 00002 * OpenSG * 00003 * * 00004 * * 00005 * Copyright (C) 2000,2001 by the OpenSG Forum * 00006 * * 00007 * www.opensg.org * 00008 * * 00009 * contact: dirk@opensg.org, gerrit.voss@vossg.org, jbehr@zgdv.de * 00010 * * 00011 \*---------------------------------------------------------------------------*/ 00012 /*---------------------------------------------------------------------------*\ 00013 * License * 00014 * * 00015 * This library is free software; you can redistribute it and/or modify it * 00016 * under the terms of the GNU Library General Public License as published * 00017 * by the Free Software Foundation, version 2. * 00018 * * 00019 * This library is distributed in the hope that it will be useful, but * 00020 * WITHOUT ANY WARRANTY; without even the implied warranty of * 00021 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00022 * Library General Public License for more details. * 00023 * * 00024 * You should have received a copy of the GNU Library General Public * 00025 * License along with this library; if not, write to the Free Software * 00026 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * 00027 * * 00028 \*---------------------------------------------------------------------------*/ 00029 /*---------------------------------------------------------------------------*\ 00030 * Changes * 00031 * * 00032 * * 00033 * * 00034 * * 00035 * * 00036 * * 00037 \*---------------------------------------------------------------------------*/ 00038 00039 #ifndef _OSGDVRMTEXLUTSHADER_H_ 00040 #define _OSGDVRMTEXLUTSHADER_H_ 00041 #ifdef __sgi 00042 #pragma once 00043 #endif 00044 00045 #include <OSGConfig.h> 00046 00047 #include <OSGDVRMtexLUTShaderBase.h> 00048 00049 OSG_BEGIN_NAMESPACE 00050 00051 // forward reference 00052 class DVRRenderSlice; 00053 00057 class OSG_SYSTEMLIB_DLLMAPPING DVRMtexLUTShader : public DVRMtexLUTShaderBase 00058 { 00059 private: 00060 00061 typedef DVRMtexLUTShaderBase Inherited; 00062 00063 /*========================== PUBLIC =================================*/ 00064 00065 public: 00066 00067 /*---------------------------------------------------------------------*/ 00071 virtual void changed(BitVector whichField, 00072 UInt32 from); 00073 00075 /*---------------------------------------------------------------------*/ 00079 virtual void dump( UInt32 uiIndent = 0, 00080 const BitVector bvFlags = 0) const; 00081 00083 /*---------------------------------------------------------------------*/ 00087 // Callback to set up shader - register textures here 00088 virtual bool initialize (DVRVolume *volume, 00089 DrawActionBase *action ); 00090 00091 // Callback before any slice is rendered - setup per volume 00092 virtual void activate (DVRVolume *volume, 00093 DrawActionBase *action ); 00094 00095 // Callback after all rendering of the volume is done 00096 virtual void deactivate (DVRVolume *volume, 00097 DrawActionBase *action ); 00098 00099 // Callback for rendering slices 00100 virtual void renderSlice (DVRVolume *volume, 00101 DrawActionBase *action, 00102 Real32 *data, 00103 UInt32 vertices, 00104 UInt32 values ); 00105 00106 // Callback for rendering slices 00107 virtual void renderSlice (DVRVolume *volume, 00108 DrawActionBase *action, 00109 DVRRenderSlice *clippedSlice); 00110 00111 // Callback to clean up shader resources 00112 virtual void cleanup (DVRVolume *volume, 00113 DrawActionBase *action ); 00114 00115 // Returns whether the shader has an implementation of 'renderSlice' 00116 virtual bool hasRenderCallback(void ); 00117 00118 // Returns whether the shader requires multitextured slabs instead of 00119 // bricks 00120 virtual bool useMTSlabs (void ); 00121 00123 /*========================= PROTECTED ===============================*/ 00124 00125 protected: 00126 00127 // Variables should all be in DVRMtexLUTShaderBase. 00128 00129 /*---------------------------------------------------------------------*/ 00133 DVRMtexLUTShader(void); 00134 DVRMtexLUTShader(const DVRMtexLUTShader &source); 00135 00137 /*---------------------------------------------------------------------*/ 00141 virtual ~DVRMtexLUTShader(void); 00142 00145 /*========================== PRIVATE ================================*/ 00146 00147 private: 00148 00149 // extension indices for used extensions; 00150 static UInt32 _arbMultitexture; 00151 static UInt32 _nvRegisterCombiners; 00152 00153 // extension indices for used fucntions; 00154 static UInt32 _funcMultiTexCoord2dARB; 00155 static UInt32 _funcCombinerParameteriNV; 00156 static UInt32 _funcCombinerParameterfvNV; 00157 static UInt32 _funcCombinerInputNV; 00158 static UInt32 _funcCombinerOutputNV; 00159 static UInt32 _funcFinalCombinerInputNV; 00160 00162 /*---------------------------------------------------------------------*/ 00166 // Set up correct register combiner state 00167 void initCombiners(DrawActionBase *action); 00168 00170 /*---------------------------------------------------------------------*/ 00171 00172 friend class FieldContainer; 00173 friend class DVRMtexLUTShaderBase; 00174 00175 static void initMethod(void); 00176 00177 // prohibit default functions (move to 'public' if you need one) 00178 void operator =(const DVRMtexLUTShader &source); 00179 }; 00180 00181 typedef DVRMtexLUTShader *DVRMtexLUTShaderP; 00182 00183 OSG_END_NAMESPACE 00184 00185 #include <OSGDVRMtexLUTShader.inl> 00186 #include <OSGDVRMtexLUTShaderBase.inl> 00187 00188 #define OSGDVRMTEXLUTSHADER_HEADER_CVSID "@(#)$Id: $" 00189 00190 #endif /* _OSGDVRMTEXLUTSHADER_H_ */
1.4.3