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Fixed potential memory leak

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This commit is contained in:
Robert Osfield 2016-06-20 13:37:59 +01:00
parent 7f99182c04
commit ce7c37851b
1 changed files with 21 additions and 22 deletions
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43
src/osgPlugins/ply/vertexData.cpp
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@ -208,38 +208,37 @@ void VertexData::readTriangles( PlyFile* file, const int nFaces )
ply_get_property( file, "face", &faceProps[0] );
//triangles.clear();
//triangles.reserve( nFaces );
if(!_triangles.valid())
_triangles = new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLES, 0);
if(!_quads.valid())
_quads = new osg::DrawElementsUInt(osg::PrimitiveSet::QUADS, 0);
_triangles = new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLES);
if(!_quads.valid())
_quads = new osg::DrawElementsUInt(osg::PrimitiveSet::QUADS);
const char NUM_VERTICES_TRIANGLE(3);
const char NUM_VERTICES_QUAD(4);
// read the faces, reversing the reading direction if _invertFaces is true
for( int i = 0 ; i < nFaces; i++ )
{
ply_get_element( file, static_cast< void* >( &face ) );
MESHASSERT( face.vertices != 0 );
if( (unsigned int)(face.nVertices) > 4 )
if (face.vertices)
{
if (face.nVertices == NUM_VERTICES_TRIANGLE || face.nVertices == NUM_VERTICES_QUAD)
{
unsigned short index;
for(int j = 0 ; j < face.nVertices ; j++)
{
index = ( _invertFaces ? face.nVertices - 1 - j : j );
if(face.nVertices == 4)
_quads->push_back(face.vertices[index]);
else
_triangles->push_back(face.vertices[index]);
}
}
// free the memory that was allocated by ply_get_element
free( face.vertices );
throw MeshException( "Error reading PLY file. Encountered a "
"face which does not have three or four vertices." );
}
unsigned short index;
for(int j = 0 ; j < face.nVertices ; j++)
{
index = ( _invertFaces ? face.nVertices - 1 - j : j );
if(face.nVertices == 4)
_quads->push_back(face.vertices[index]);
else
_triangles->push_back(face.vertices[index]);
}
// free the memory that was allocated by ply_get_element
free( face.vertices );
}
}