# Visualization Library

A lightweight C++ OpenGL middleware for 2D/3D graphics

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# D:/VL/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vlGraphics/GeometryLoadCallback.hpp

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    00001 /**************************************************************************************/
    00002 /*                                                                                    */
    00003 /*  Visualization Library                                                             */
    00004 /*  http://www.visualizationlibrary.org                                               */
    00005 /*                                                                                    */
    00006 /*  Copyright (c) 2005-2010, Michele Bosi                                             */
    00007 /*  All rights reserved.                                                              */
    00008 /*                                                                                    */
    00009 /*  Redistribution and use in source and binary forms, with or without modification,  */
    00010 /*  are permitted provided that the following conditions are met:                     */
    00011 /*                                                                                    */
    00012 /*  - Redistributions of source code must retain the above copyright notice, this     */
    00013 /*  list of conditions and the following disclaimer.                                  */
    00014 /*                                                                                    */
    00015 /*  - Redistributions in binary form must reproduce the above copyright notice, this  */
    00016 /*  list of conditions and the following disclaimer in the documentation and/or       */
    00017 /*  other materials provided with the distribution.                                   */
    00018 /*                                                                                    */
    00019 /*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND   */
    00020 /*  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED     */
    00021 /*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE            */
    00022 /*  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR  */
    00023 /*  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    */
    00024 /*  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;      */
    00025 /*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON    */
    00026 /*  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT           */
    00027 /*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS     */
    00028 /*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                      */
    00029 /*                                                                                    */
    00030 /**************************************************************************************/
    00031
    00032 #ifndef GeometryLoadCallback_INCLUDE_ONCE
    00033 #define GeometryLoadCallback_INCLUDE_ONCE
    00034
    00035 #include <vlGraphics/Geometry.hpp>
    00036 #include <vlGraphics/TriangleStripGenerator.hpp>
    00037 #include <vlGraphics/DoubleVertexRemover.hpp>
    00038 #include <vlCore/LoadWriterManager.hpp>
    00039
    00040 namespace vl
    00041 {
    00045   class GeometryLoadCallback: public LoadCallback
    00046   {
    00047     VL_INSTRUMENT_CLASS(vl::GeometryLoadCallback, LoadCallback)
    00048
    00049   public:
    00050     GeometryLoadCallback()
    00051     {
    00052       mMakeGLESFriendly    = false;
    00053       mComputeNormals    = true;
    00054       mUseBufferObjects           = true;
    00055       mUseDisplayLists   = false;
    00056       mTransformGeometry = false;
    00057       mDiscardOriginalNormals = false;
    00058       mRemoveDoubles          = false;
    00059       mSortVertices           = false;
    00060       mStripfy                = false;
    00061       mConvertToDrawArrays    = false;
    00062     }
    00063
    00064     void operator()(ResourceDatabase* db)
    00065     {
    00066       if (stripfy())
    00067         setRemoveDoubles(true);
    00068
    00069       std::vector< vl::ref<vl::Geometry> > geom;
    00070       db->get<Geometry>(geom);
    00071       for(unsigned int i=0; i<geom.size(); ++i)
    00072       {
    00073         if (discardOriginalNormals())
    00074           geom[i]->setNormalArray(NULL);
    00075
    00076         if (computeNormals() && !geom[i]->normalArray())
    00077           geom[i]->computeNormals();
    00078
    00079         if (removeDoubles())
    00080           DoubleVertexRemover().removeDoubles(geom[i].get());
    00081
    00082         if (sortVertices())
    00083           geom[i]->sortVertices();
    00084
    00085         if (stripfy())
    00086           TriangleStripGenerator().stripfy(geom[i].get(), 22, true, false, true);
    00087
    00088         if (convertToDrawArrays())
    00089           geom[i]->convertDrawCallToDrawArrays();
    00090
    00091         geom[i]->setDisplayListEnabled(useDisplayLists());
    00092         geom[i]->setBufferObjectEnabled(useBufferObjects());
    00093
    00094         if (transformGeometry())
    00095           geom[i]->transform(transformMatrix(),true);
    00096
    00097         if (makeGLESFriendly())
    00098           geom[i]->makeGLESFriendly();
    00099       }
    00100     }
    00101
    00103     bool discardOriginalNormals() const { return mDiscardOriginalNormals; }
    00105     void setDiscardOriginalNormals(bool on) { mDiscardOriginalNormals = on; }
    00106
    00108     bool computeNormals() const { return mComputeNormals; }
    00110     void setComputeNormals(bool cn) { mComputeNormals = cn; }
    00111
    00113     bool removeDoubles() const { return mRemoveDoubles; }
    00115     void setRemoveDoubles(bool rd) { mRemoveDoubles = rd; }
    00116
    00118     void setSortVertices(bool on) { mSortVertices = on; }
    00120     bool sortVertices() const { return mSortVertices; }
    00121
    00123     void setStripfy(bool on) { mStripfy = on; }
    00125     bool stripfy() const { return mStripfy; }
    00126
    00128     bool convertToDrawArrays() const { return mConvertToDrawArrays; }
    00130     void setConvertToDrawArrays(bool on) { mConvertToDrawArrays = on; }
    00131
    00133     void setUseDisplayLists(bool on) { mUseDisplayLists = on; }
    00135     bool useDisplayLists() const { return mUseDisplayLists; }
    00136
    00138     void setUseBufferObjects(bool on) { mUseBufferObjects = on; }
    00140     bool useBufferObjects() const { return mUseBufferObjects; }
    00141
    00142     const mat4& transformMatrix() const { return mMatrix; }
    00143     void setTransformMatrix(const mat4& m) { mMatrix = m; }
    00144
    00146     bool transformGeometry() const { return mTransformGeometry; }
    00148     void setTransformGeometry(bool on) { mTransformGeometry = on; }
    00149
    00151     bool makeGLESFriendly() const { return mMakeGLESFriendly; }
    00153     void setMakeGLESFriendly(bool on) { mMakeGLESFriendly = on; }
    00154
    00155   protected:
    00156     mat4 mMatrix;
    00157     bool mTransformGeometry;
    00158     bool mDiscardOriginalNormals;
    00159     bool mComputeNormals;
    00160     bool mRemoveDoubles;
    00161     bool mSortVertices;
    00162     bool mStripfy;
    00163     bool mConvertToDrawArrays;
    00164     bool mUseDisplayLists;
    00165     bool mUseBufferObjects;
    00166     bool mMakeGLESFriendly;
    00167   };
    00168 }
    00169
    00170 #endif

Visualization Library v2011.09.1162 Reference Documentation
Copyright 2005-2011 Michele Bosi. All rights reserved.
Updated on Thu Jan 26 2012 00:43:38.
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