Initial Upload (Take 2)

Src/Geometry.cpp

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+/*
+Copyright (c) 2006, Michael Kazhdan and Matthew Bolitho
+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 Johns Hopkins University 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 COPYRIGHT OWNER 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 "Geometry.h"
+#include <stdio.h>
+#include <string.h>
+#ifdef _WIN32
+#include <io.h>
+#endif // _WIN32
+
+///////////////////
+// CoredMeshData //
+///////////////////
+
+TriangulationEdge::TriangulationEdge(void){pIndex[0]=pIndex[1]=tIndex[0]=tIndex[1]=-1;}
+TriangulationTriangle::TriangulationTriangle(void){eIndex[0]=eIndex[1]=eIndex[2]=-1;}
+
+///////////////////////////
+// BufferedReadWriteFile //
+///////////////////////////
+BufferedReadWriteFile::BufferedReadWriteFile( char* fileName , int bufferSize )
+{
+	_bufferIndex = 0;
+	_bufferSize = bufferSize;
+	if( fileName ) strcpy( _fileName , fileName ) , tempFile = false , _fp = fopen( _fileName , "w+b" );
+	else
+	{
+		strcpy( _fileName , "PR_XXXXXX" );
+#ifdef _WIN32
+		_mktemp( _fileName );
+		_fp = fopen( _fileName , "w+b" );
+#else // !_WIN32
+		_fp = fdopen( mkstemp( _fileName ) , "w+b" );
+#endif // _WIN32
+		tempFile = true;
+	}
+	if( !_fp ) fprintf( stderr , "[ERROR] Failed to open file: %s\n" , _fileName ) , exit( 0 );
+	_buffer = (char*) malloc( _bufferSize );
+}
+BufferedReadWriteFile::~BufferedReadWriteFile( void )
+{
+	free( _buffer );
+	fclose( _fp );
+	if( tempFile ) remove( _fileName );
+}
+void BufferedReadWriteFile::reset( void )
+{
+	if( _bufferIndex ) fwrite( _buffer , 1 , _bufferIndex , _fp );
+	_bufferIndex = 0;
+	fseek( _fp , 0 , SEEK_SET );
+	_bufferIndex = 0;
+	_bufferSize = fread( _buffer , 1 , _bufferSize , _fp );
+}
+bool BufferedReadWriteFile::write( const void* data , size_t size )
+{
+	if( !size ) return true;
+	char* _data = (char*) data;
+	size_t sz = _bufferSize - _bufferIndex;
+	while( sz<=size )
+	{
+		memcpy( _buffer+_bufferIndex , _data , sz );
+		fwrite( _buffer , 1 , _bufferSize , _fp );
+		_data += sz;
+		size -= sz;
+		_bufferIndex = 0;
+		sz = _bufferSize;
+	}
+	if( size )
+	{
+		memcpy( _buffer+_bufferIndex , _data , size );
+		_bufferIndex += size;
+	}
+	return true;
+}
+bool BufferedReadWriteFile::read( void* data , size_t size )
+{
+	if( !size ) return true;
+	char *_data = (char*) data;
+	size_t sz = _bufferSize - _bufferIndex;
+	while( sz<=size )
+	{
+		if( size && !_bufferSize ) return false;
+		memcpy( _data , _buffer+_bufferIndex , sz );
+		_bufferSize = fread( _buffer , 1 , _bufferSize , _fp );
+		_data += sz;
+		size -= sz;
+		_bufferIndex = 0;
+		if( !size ) return true;
+		sz = _bufferSize;
+	}
+	if( size )
+	{
+		if( !_bufferSize ) return false;
+		memcpy( _data , _buffer+_bufferIndex , size );
+		_bufferIndex += size;
+	}
+	return true;
+}