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122 lines
3.8 KiB
122 lines
3.8 KiB
/*
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Copyright (c) 2006, Michael Kazhdan and Matthew Bolitho
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this list of
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conditions and the following disclaimer. Redistributions in binary form must reproduce
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the above copyright notice, this list of conditions and the following disclaimer
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in the documentation and/or other materials provided with the distribution.
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Neither the name of the Johns Hopkins University nor the names of its contributors
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may be used to endorse or promote products derived from this software without specific
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prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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DAMAGE.
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*/
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#include "Geometry.h"
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#include <stdio.h>
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#include <string.h>
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#ifdef _WIN32
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#include <io.h>
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#endif // _WIN32
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///////////////////
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// CoredMeshData //
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///////////////////
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TriangulationEdge::TriangulationEdge(void){pIndex[0]=pIndex[1]=tIndex[0]=tIndex[1]=-1;}
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TriangulationTriangle::TriangulationTriangle(void){eIndex[0]=eIndex[1]=eIndex[2]=-1;}
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///////////////////////////
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// BufferedReadWriteFile //
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///////////////////////////
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BufferedReadWriteFile::BufferedReadWriteFile( char* fileName , int bufferSize )
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{
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_bufferIndex = 0;
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_bufferSize = bufferSize;
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if( fileName ) strcpy( _fileName , fileName ) , tempFile = false , _fp = fopen( _fileName , "w+b" );
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else
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{
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strcpy( _fileName , "PR_XXXXXX" );
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#ifdef _WIN32
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_mktemp( _fileName );
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_fp = fopen( _fileName , "w+b" );
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#else // !_WIN32
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_fp = fdopen( mkstemp( _fileName ) , "w+b" );
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#endif // _WIN32
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tempFile = true;
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}
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if( !_fp ) fprintf( stderr , "[ERROR] Failed to open file: %s\n" , _fileName ) , exit( 0 );
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_buffer = (char*) malloc( _bufferSize );
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}
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BufferedReadWriteFile::~BufferedReadWriteFile( void )
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{
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free( _buffer );
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fclose( _fp );
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if( tempFile ) remove( _fileName );
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}
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void BufferedReadWriteFile::reset( void )
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{
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if( _bufferIndex ) fwrite( _buffer , 1 , _bufferIndex , _fp );
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_bufferIndex = 0;
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fseek( _fp , 0 , SEEK_SET );
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_bufferIndex = 0;
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_bufferSize = fread( _buffer , 1 , _bufferSize , _fp );
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}
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bool BufferedReadWriteFile::write( const void* data , size_t size )
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{
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if( !size ) return true;
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char* _data = (char*) data;
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size_t sz = _bufferSize - _bufferIndex;
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while( sz<=size )
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{
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memcpy( _buffer+_bufferIndex , _data , sz );
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fwrite( _buffer , 1 , _bufferSize , _fp );
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_data += sz;
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size -= sz;
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_bufferIndex = 0;
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sz = _bufferSize;
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}
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if( size )
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{
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memcpy( _buffer+_bufferIndex , _data , size );
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_bufferIndex += size;
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}
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return true;
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}
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bool BufferedReadWriteFile::read( void* data , size_t size )
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{
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if( !size ) return true;
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char *_data = (char*) data;
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size_t sz = _bufferSize - _bufferIndex;
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while( sz<=size )
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{
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if( size && !_bufferSize ) return false;
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memcpy( _data , _buffer+_bufferIndex , sz );
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_bufferSize = fread( _buffer , 1 , _bufferSize , _fp );
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_data += sz;
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size -= sz;
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_bufferIndex = 0;
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if( !size ) return true;
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sz = _bufferSize;
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}
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if( size )
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{
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if( !_bufferSize ) return false;
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memcpy( _data , _buffer+_bufferIndex , size );
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_bufferIndex += size;
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}
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return true;
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} |