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authorAlon Zakai <alonzakai@gmail.com>2011-04-21 17:55:35 -0700
committerAlon Zakai <alonzakai@gmail.com>2011-04-21 17:55:35 -0700
commit887ce3dde89410d012a708c3ec454f679b2e5b1e (patch)
treedaeadbc86bf721a5d4fff109a1d87a4c69215905 /tests/bullet/Extras/ConvexDecomposition/cd_wavefront.cpp
parentb3f4022e35b34002f44aacde554cc8b3ea927500 (diff)
update bullet test to compile from source
Diffstat (limited to 'tests/bullet/Extras/ConvexDecomposition/cd_wavefront.cpp')
-rw-r--r--tests/bullet/Extras/ConvexDecomposition/cd_wavefront.cpp860
1 files changed, 860 insertions, 0 deletions
diff --git a/tests/bullet/Extras/ConvexDecomposition/cd_wavefront.cpp b/tests/bullet/Extras/ConvexDecomposition/cd_wavefront.cpp
new file mode 100644
index 00000000..54e8bdf6
--- /dev/null
+++ b/tests/bullet/Extras/ConvexDecomposition/cd_wavefront.cpp
@@ -0,0 +1,860 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+
+/*----------------------------------------------------------------------
+ Copyright (c) 2004 Open Dynamics Framework Group
+ www.physicstools.org
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ that the following conditions are met:
+
+ Redistributions of source code must retain the above copyright notice, this list of conditions
+ and the following disclaimer.
+
+ Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ Neither the name of the Open Dynamics Framework Group nor the names of its contributors may
+ be used to endorse or promote products derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE INTEL OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------*/
+
+// http://codesuppository.blogspot.com
+//
+// mailto: jratcliff@infiniplex.net
+//
+// http://www.amillionpixels.us
+//
+#include "float_math.h"
+
+#include "cd_wavefront.h"
+
+
+using namespace ConvexDecomposition;
+
+/*----------------------------------------------------------------------
+ Copyright (c) 2004 Open Dynamics Framework Group
+ www.physicstools.org
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ that the following conditions are met:
+
+ Redistributions of source code must retain the above copyright notice, this list of conditions
+ and the following disclaimer.
+
+ Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ Neither the name of the Open Dynamics Framework Group nor the names of its contributors may
+ be used to endorse or promote products derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE INTEL OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------*/
+
+#include <vector>
+
+namespace ConvexDecomposition
+{
+
+typedef std::vector< int > IntVector;
+typedef std::vector< float > FloatVector;
+
+#if defined(__APPLE__) || defined(__CELLOS_LV2__)
+#define stricmp(a, b) strcasecmp((a), (b))
+#endif
+
+/*******************************************************************/
+/******************** InParser.h ********************************/
+/*******************************************************************/
+class InPlaceParserInterface
+{
+public:
+ virtual ~InPlaceParserInterface () {} ;
+
+ virtual int ParseLine(int lineno,int argc,const char **argv) =0; // return TRUE to continue parsing, return FALSE to abort parsing process
+};
+
+enum SeparatorType
+{
+ ST_DATA, // is data
+ ST_HARD, // is a hard separator
+ ST_SOFT, // is a soft separator
+ ST_EOS // is a comment symbol, and everything past this character should be ignored
+};
+
+class InPlaceParser
+{
+public:
+ InPlaceParser(void)
+ {
+ Init();
+ }
+
+ InPlaceParser(char *data,int len)
+ {
+ Init();
+ SetSourceData(data,len);
+ }
+
+ InPlaceParser(const char *fname)
+ {
+ Init();
+ SetFile(fname);
+ }
+
+ ~InPlaceParser(void);
+
+ void Init(void)
+ {
+ mQuoteChar = 34;
+ mData = 0;
+ mLen = 0;
+ mMyAlloc = false;
+ for (int i=0; i<256; i++)
+ {
+ mHard[i] = ST_DATA;
+ mHardString[i*2] = i;
+ mHardString[i*2+1] = 0;
+ }
+ mHard[0] = ST_EOS;
+ mHard[32] = ST_SOFT;
+ mHard[9] = ST_SOFT;
+ mHard[13] = ST_SOFT;
+ mHard[10] = ST_SOFT;
+ }
+
+ void SetFile(const char *fname); // use this file as source data to parse.
+
+ void SetSourceData(char *data,int len)
+ {
+ mData = data;
+ mLen = len;
+ mMyAlloc = false;
+ };
+
+ int Parse(InPlaceParserInterface *callback); // returns true if entire file was parsed, false if it aborted for some reason
+
+ int ProcessLine(int lineno,char *line,InPlaceParserInterface *callback);
+
+ const char ** GetArglist(char *source,int &count); // convert source string into an arg list, this is a destructive parse.
+
+ void SetHardSeparator(char c) // add a hard separator
+ {
+ mHard[(int)c] = ST_HARD;
+ }
+
+ void SetHard(char c) // add a hard separator
+ {
+ mHard[(int)c] = ST_HARD;
+ }
+
+
+ void SetCommentSymbol(char c) // comment character, treated as 'end of string'
+ {
+ mHard[(int)c] = ST_EOS;
+ }
+
+ void ClearHardSeparator(char c)
+ {
+ mHard[(int)c] = ST_DATA;
+ }
+
+
+ void DefaultSymbols(void); // set up default symbols for hard seperator and comment symbol of the '#' character.
+
+ bool EOS(char c)
+ {
+ if ( mHard[(int)c] == ST_EOS )
+ {
+ return true;
+ }
+ return false;
+ }
+
+ void SetQuoteChar(char c)
+ {
+ mQuoteChar = c;
+ }
+
+private:
+
+
+ inline char * AddHard(int &argc,const char **argv,char *foo);
+ inline bool IsHard(char c);
+ inline char * SkipSpaces(char *foo);
+ inline bool IsWhiteSpace(char c);
+ inline bool IsNonSeparator(char c); // non seperator,neither hard nor soft
+
+ bool mMyAlloc; // whether or not *I* allocated the buffer and am responsible for deleting it.
+ char *mData; // ascii data to parse.
+ int mLen; // length of data
+ SeparatorType mHard[256];
+ char mHardString[256*2];
+ char mQuoteChar;
+};
+
+/*******************************************************************/
+/******************** InParser.cpp ********************************/
+/*******************************************************************/
+void InPlaceParser::SetFile(const char *fname)
+{
+ if ( mMyAlloc )
+ {
+ free(mData);
+ }
+ mData = 0;
+ mLen = 0;
+ mMyAlloc = false;
+
+
+ FILE *fph = fopen(fname,"rb");
+ if ( fph )
+ {
+ fseek(fph,0L,SEEK_END);
+ mLen = ftell(fph);
+ fseek(fph,0L,SEEK_SET);
+ if ( mLen )
+ {
+ mData = (char *) malloc(sizeof(char)*(mLen+1));
+ int ok = fread(mData, mLen, 1, fph);
+ if ( !ok )
+ {
+ free(mData);
+ mData = 0;
+ }
+ else
+ {
+ mData[mLen] = 0; // zero byte terminate end of file marker.
+ mMyAlloc = true;
+ }
+ }
+ fclose(fph);
+ }
+}
+
+InPlaceParser::~InPlaceParser(void)
+{
+ if ( mMyAlloc )
+ {
+ free(mData);
+ }
+}
+
+#define MAXARGS 512
+
+bool InPlaceParser::IsHard(char c)
+{
+ return mHard[(int)c] == ST_HARD;
+}
+
+char * InPlaceParser::AddHard(int &argc,const char **argv,char *foo)
+{
+ while ( IsHard(*foo) )
+ {
+ const char *hard = &mHardString[*foo*2];
+ if ( argc < MAXARGS )
+ {
+ argv[argc++] = hard;
+ }
+ foo++;
+ }
+ return foo;
+}
+
+bool InPlaceParser::IsWhiteSpace(char c)
+{
+ return mHard[(int)c] == ST_SOFT;
+}
+
+char * InPlaceParser::SkipSpaces(char *foo)
+{
+ while ( !EOS(*foo) && IsWhiteSpace(*foo) ) foo++;
+ return foo;
+}
+
+bool InPlaceParser::IsNonSeparator(char c)
+{
+ if ( !IsHard(c) && !IsWhiteSpace(c) && c != 0 ) return true;
+ return false;
+}
+
+
+int InPlaceParser::ProcessLine(int lineno,char *line,InPlaceParserInterface *callback)
+{
+ int ret = 0;
+
+ const char *argv[MAXARGS];
+ int argc = 0;
+
+ char *foo = line;
+
+ while ( !EOS(*foo) && argc < MAXARGS )
+ {
+
+ foo = SkipSpaces(foo); // skip any leading spaces
+
+ if ( EOS(*foo) ) break;
+
+ if ( *foo == mQuoteChar ) // if it is an open quote
+ {
+ foo++;
+ if ( argc < MAXARGS )
+ {
+ argv[argc++] = foo;
+ }
+ while ( !EOS(*foo) && *foo != mQuoteChar ) foo++;
+ if ( !EOS(*foo) )
+ {
+ *foo = 0; // replace close quote with zero byte EOS
+ foo++;
+ }
+ }
+ else
+ {
+
+ foo = AddHard(argc,argv,foo); // add any hard separators, skip any spaces
+
+ if ( IsNonSeparator(*foo) ) // add non-hard argument.
+ {
+ bool quote = false;
+ if ( *foo == mQuoteChar )
+ {
+ foo++;
+ quote = true;
+ }
+
+ if ( argc < MAXARGS )
+ {
+ argv[argc++] = foo;
+ }
+
+ if ( quote )
+ {
+ while (*foo && *foo != mQuoteChar ) foo++;
+ if ( *foo ) *foo = 32;
+ }
+
+ // continue..until we hit an eos ..
+ while ( !EOS(*foo) ) // until we hit EOS
+ {
+ if ( IsWhiteSpace(*foo) ) // if we hit a space, stomp a zero byte, and exit
+ {
+ *foo = 0;
+ foo++;
+ break;
+ }
+ else if ( IsHard(*foo) ) // if we hit a hard separator, stomp a zero byte and store the hard separator argument
+ {
+ const char *hard = &mHardString[*foo*2];
+ *foo = 0;
+ if ( argc < MAXARGS )
+ {
+ argv[argc++] = hard;
+ }
+ foo++;
+ break;
+ }
+ foo++;
+ } // end of while loop...
+ }
+ }
+ }
+
+ if ( argc )
+ {
+ ret = callback->ParseLine(lineno, argc, argv );
+ }
+
+ return ret;
+}
+
+int InPlaceParser::Parse(InPlaceParserInterface *callback) // returns true if entire file was parsed, false if it aborted for some reason
+{
+ assert( callback );
+ if ( !mData ) return 0;
+
+ int ret = 0;
+
+ int lineno = 0;
+
+ char *foo = mData;
+ char *begin = foo;
+
+
+ while ( *foo )
+ {
+ if ( *foo == 10 || *foo == 13 )
+ {
+ lineno++;
+ *foo = 0;
+
+ if ( *begin ) // if there is any data to parse at all...
+ {
+ int v = ProcessLine(lineno,begin,callback);
+ if ( v ) ret = v;
+ }
+
+ foo++;
+ if ( *foo == 10 ) foo++; // skip line feed, if it is in the carraige-return line-feed format...
+ begin = foo;
+ }
+ else
+ {
+ foo++;
+ }
+ }
+
+ lineno++; // lasst line.
+
+ int v = ProcessLine(lineno,begin,callback);
+ if ( v ) ret = v;
+ return ret;
+}
+
+
+void InPlaceParser::DefaultSymbols(void)
+{
+ SetHardSeparator(',');
+ SetHardSeparator('(');
+ SetHardSeparator(')');
+ SetHardSeparator('=');
+ SetHardSeparator('[');
+ SetHardSeparator(']');
+ SetHardSeparator('{');
+ SetHardSeparator('}');
+ SetCommentSymbol('#');
+}
+
+
+const char ** InPlaceParser::GetArglist(char *line,int &count) // convert source string into an arg list, this is a destructive parse.
+{
+ const char **ret = 0;
+
+ const char *argv[MAXARGS];
+ int argc = 0;
+
+ char *foo = line;
+
+ while ( !EOS(*foo) && argc < MAXARGS )
+ {
+
+ foo = SkipSpaces(foo); // skip any leading spaces
+
+ if ( EOS(*foo) ) break;
+
+ if ( *foo == mQuoteChar ) // if it is an open quote
+ {
+ foo++;
+ if ( argc < MAXARGS )
+ {
+ argv[argc++] = foo;
+ }
+ while ( !EOS(*foo) && *foo != mQuoteChar ) foo++;
+ if ( !EOS(*foo) )
+ {
+ *foo = 0; // replace close quote with zero byte EOS
+ foo++;
+ }
+ }
+ else
+ {
+
+ foo = AddHard(argc,argv,foo); // add any hard separators, skip any spaces
+
+ if ( IsNonSeparator(*foo) ) // add non-hard argument.
+ {
+ bool quote = false;
+ if ( *foo == mQuoteChar )
+ {
+ foo++;
+ quote = true;
+ }
+
+ if ( argc < MAXARGS )
+ {
+ argv[argc++] = foo;
+ }
+
+ if ( quote )
+ {
+ while (*foo && *foo != mQuoteChar ) foo++;
+ if ( *foo ) *foo = 32;
+ }
+
+ // continue..until we hit an eos ..
+ while ( !EOS(*foo) ) // until we hit EOS
+ {
+ if ( IsWhiteSpace(*foo) ) // if we hit a space, stomp a zero byte, and exit
+ {
+ *foo = 0;
+ foo++;
+ break;
+ }
+ else if ( IsHard(*foo) ) // if we hit a hard separator, stomp a zero byte and store the hard separator argument
+ {
+ const char *hard = &mHardString[*foo*2];
+ *foo = 0;
+ if ( argc < MAXARGS )
+ {
+ argv[argc++] = hard;
+ }
+ foo++;
+ break;
+ }
+ foo++;
+ } // end of while loop...
+ }
+ }
+ }
+
+ count = argc;
+ if ( argc )
+ {
+ ret = argv;
+ }
+
+ return ret;
+}
+
+/*******************************************************************/
+/******************** Geometry.h ********************************/
+/*******************************************************************/
+
+class GeometryVertex
+{
+public:
+ float mPos[3];
+ float mNormal[3];
+ float mTexel[2];
+};
+
+
+class GeometryInterface
+{
+public:
+
+ virtual void NodeTriangle(const GeometryVertex *v1,const GeometryVertex *v2,const GeometryVertex *v3) {}
+
+ virtual ~GeometryInterface () {}
+};
+
+
+/*******************************************************************/
+/******************** Obj.h ********************************/
+/*******************************************************************/
+
+
+class OBJ : public InPlaceParserInterface
+{
+public:
+ int LoadMesh(const char *fname,GeometryInterface *callback);
+ int ParseLine(int lineno,int argc,const char **argv); // return TRUE to continue parsing, return FALSE to abort parsing process
+private:
+
+ void getVertex(GeometryVertex &v,const char *face) const;
+
+ FloatVector mVerts;
+ FloatVector mTexels;
+ FloatVector mNormals;
+
+ GeometryInterface *mCallback;
+};
+
+
+/*******************************************************************/
+/******************** Obj.cpp ********************************/
+/*******************************************************************/
+
+int OBJ::LoadMesh(const char *fname,GeometryInterface *iface)
+{
+ int ret = 0;
+
+ mVerts.clear();
+ mTexels.clear();
+ mNormals.clear();
+
+ mCallback = iface;
+
+ InPlaceParser ipp(fname);
+
+ ipp.Parse(this);
+
+
+ return ret;
+}
+
+//static const char * GetArg(const char **argv,int i,int argc)
+//{
+ // const char * ret = 0;
+ // if ( i < argc ) ret = argv[i];
+ // return ret;
+//}
+
+void OBJ::getVertex(GeometryVertex &v,const char *face) const
+{
+ v.mPos[0] = 0;
+ v.mPos[1] = 0;
+ v.mPos[2] = 0;
+
+ v.mTexel[0] = 0;
+ v.mTexel[1] = 0;
+
+ v.mNormal[0] = 0;
+ v.mNormal[1] = 1;
+ v.mNormal[2] = 0;
+
+ int index = atoi( face )-1;
+
+ const char *texel = strstr(face,"/");
+
+ if ( texel )
+ {
+ int tindex = atoi( texel+1) - 1;
+
+ if ( tindex >=0 && tindex < (int)(mTexels.size()/2) )
+ {
+ const float *t = &mTexels[tindex*2];
+
+ v.mTexel[0] = t[0];
+ v.mTexel[1] = t[1];
+
+ }
+
+ const char *normal = strstr(texel+1,"/");
+ if ( normal )
+ {
+ int nindex = atoi( normal+1 ) - 1;
+
+ if (nindex >= 0 && nindex < (int)(mNormals.size()/3) )
+ {
+ const float *n = &mNormals[nindex*3];
+
+ v.mNormal[0] = n[0];
+ v.mNormal[1] = n[1];
+ v.mNormal[2] = n[2];
+ }
+ }
+ }
+
+ if ( index >= 0 && index < (int)(mVerts.size()/3) )
+ {
+
+ const float *p = &mVerts[index*3];
+
+ v.mPos[0] = p[0];
+ v.mPos[1] = p[1];
+ v.mPos[2] = p[2];
+ }
+
+}
+
+int OBJ::ParseLine(int lineno,int argc,const char **argv) // return TRUE to continue parsing, return FALSE to abort parsing process
+{
+ int ret = 0;
+
+ if ( argc >= 1 )
+ {
+ const char *foo = argv[0];
+ if ( *foo != '#' )
+ {
+ if ( strcmp(argv[0],"v") == 0 && argc == 4 )
+
+ //if ( stricmp(argv[0],"v") == 0 && argc == 4 )
+ {
+ float vx = (float) atof( argv[1] );
+ float vy = (float) atof( argv[2] );
+ float vz = (float) atof( argv[3] );
+ mVerts.push_back(vx);
+ mVerts.push_back(vy);
+ mVerts.push_back(vz);
+ }
+ else if ( strcmp(argv[0],"vt") == 0 && argc == 3 )
+
+ // else if ( stricmp(argv[0],"vt") == 0 && argc == 3 )
+ {
+ float tx = (float) atof( argv[1] );
+ float ty = (float) atof( argv[2] );
+ mTexels.push_back(tx);
+ mTexels.push_back(ty);
+ }
+ // else if ( stricmp(argv[0],"vn") == 0 && argc == 4 )
+
+ else if ( strcmp(argv[0],"vn") == 0 && argc == 4 )
+ {
+ float normalx = (float) atof(argv[1]);
+ float normaly = (float) atof(argv[2]);
+ float normalz = (float) atof(argv[3]);
+ mNormals.push_back(normalx);
+ mNormals.push_back(normaly);
+ mNormals.push_back(normalz);
+ }
+// else if ( stricmp(argv[0],"f") == 0 && argc >= 4 )
+
+ else if ( strcmp(argv[0],"f") == 0 && argc >= 4 )
+ {
+ GeometryVertex v[32];
+
+ int vcount = argc-1;
+
+ for (int i=1; i<argc; i++)
+ {
+ getVertex(v[i-1],argv[i] );
+ }
+
+ // need to generate a normal!
+#if 0 // not currently implemented
+ if ( mNormals.empty() )
+ {
+ Vector3d<float> p1( v[0].mPos );
+ Vector3d<float> p2( v[1].mPos );
+ Vector3d<float> p3( v[2].mPos );
+
+ Vector3d<float> n;
+ n.ComputeNormal(p3,p2,p1);
+
+ for (int i=0; i<vcount; i++)
+ {
+ v[i].mNormal[0] = n.x;
+ v[i].mNormal[1] = n.y;
+ v[i].mNormal[2] = n.z;
+ }
+
+ }
+#endif
+
+ mCallback->NodeTriangle(&v[0],&v[1],&v[2]);
+
+ if ( vcount >=3 ) // do the fan
+ {
+ for (int i=2; i<(vcount-1); i++)
+ {
+ mCallback->NodeTriangle(&v[0],&v[i],&v[i+1]);
+ }
+ }
+
+ }
+ }
+ }
+
+ return ret;
+}
+
+
+
+
+class BuildMesh : public GeometryInterface
+{
+public:
+
+ int getIndex(const float *p)
+ {
+
+ int vcount = mVertices.size()/3;
+
+ if(vcount>0)
+ {
+ //New MS STL library checks indices in debug build, so zero causes an assert if it is empty.
+ const float *v = &mVertices[0];
+
+ for (int i=0; i<vcount; i++)
+ {
+ if ( v[0] == p[0] && v[1] == p[1] && v[2] == p[2] ) return i;
+ v+=3;
+ }
+ }
+
+ mVertices.push_back( p[0] );
+ mVertices.push_back( p[1] );
+ mVertices.push_back( p[2] );
+
+ return vcount;
+ }
+
+ virtual void NodeTriangle(const GeometryVertex *v1,const GeometryVertex *v2,const GeometryVertex *v3)
+ {
+ mIndices.push_back( getIndex(v1->mPos) );
+ mIndices.push_back( getIndex(v2->mPos) );
+ mIndices.push_back( getIndex(v3->mPos) );
+ }
+
+ const FloatVector& GetVertices(void) const { return mVertices; };
+ const IntVector& GetIndices(void) const { return mIndices; };
+
+private:
+ FloatVector mVertices;
+ IntVector mIndices;
+};
+
+
+WavefrontObj::WavefrontObj(void)
+{
+ mVertexCount = 0;
+ mTriCount = 0;
+ mIndices = 0;
+ mVertices = 0;
+}
+
+WavefrontObj::~WavefrontObj(void)
+{
+ delete [] mIndices;
+ delete [] mVertices;
+}
+
+unsigned int WavefrontObj::loadObj(const char *fname) // load a wavefront obj returns number of triangles that were loaded. Data is persists until the class is destructed.
+{
+
+ unsigned int ret = 0;
+
+ delete [] mVertices;
+ mVertices = 0;
+ delete [] mIndices;
+ mIndices = 0;
+ mVertexCount = 0;
+ mTriCount = 0;
+
+
+ BuildMesh bm;
+
+ OBJ obj;
+
+ obj.LoadMesh(fname,&bm);
+
+
+ const FloatVector &vlist = bm.GetVertices();
+ const IntVector &indices = bm.GetIndices();
+ if ( vlist.size() )
+ {
+ mVertexCount = vlist.size()/3;
+ mVertices = new float[mVertexCount*3];
+ memcpy( mVertices, &vlist[0], sizeof(float)*mVertexCount*3 );
+ mTriCount = indices.size()/3;
+ mIndices = new int[mTriCount*3*sizeof(int)];
+ memcpy(mIndices, &indices[0], sizeof(int)*mTriCount*3);
+ ret = mTriCount;
+ }
+
+
+ return ret;
+}
+
+}