vrshoot

diff libs/assimp/DefaultIOStream.cpp @ 0:b2f14e535253

initial commit
author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 01 Feb 2014 19:58:19 +0200
parents
children
line diff
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/libs/assimp/DefaultIOStream.cpp	Sat Feb 01 19:58:19 2014 +0200
     1.3 @@ -0,0 +1,139 @@
     1.4 +/*
     1.5 +---------------------------------------------------------------------------
     1.6 +Open Asset Import Library (assimp)
     1.7 +---------------------------------------------------------------------------
     1.8 +
     1.9 +Copyright (c) 2006-2012, assimp team
    1.10 +
    1.11 +All rights reserved.
    1.12 +
    1.13 +Redistribution and use of this software in source and binary forms, 
    1.14 +with or without modification, are permitted provided that the following 
    1.15 +conditions are met:
    1.16 +
    1.17 +* Redistributions of source code must retain the above
    1.18 +  copyright notice, this list of conditions and the
    1.19 +  following disclaimer.
    1.20 +
    1.21 +* Redistributions in binary form must reproduce the above
    1.22 +  copyright notice, this list of conditions and the
    1.23 +  following disclaimer in the documentation and/or other
    1.24 +  materials provided with the distribution.
    1.25 +
    1.26 +* Neither the name of the assimp team, nor the names of its
    1.27 +  contributors may be used to endorse or promote products
    1.28 +  derived from this software without specific prior
    1.29 +  written permission of the assimp team.
    1.30 +
    1.31 +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
    1.32 +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
    1.33 +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    1.34 +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
    1.35 +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    1.36 +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
    1.37 +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    1.38 +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
    1.39 +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
    1.40 +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
    1.41 +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    1.42 +---------------------------------------------------------------------------
    1.43 +*/
    1.44 +/** @file  DefaultIOStream.cpp
    1.45 + *  @brief Default File I/O implementation for #Importer 
    1.46 + */
    1.47 +
    1.48 +#include "AssimpPCH.h"
    1.49 +
    1.50 +#include "DefaultIOStream.h"
    1.51 +#include <sys/types.h> 
    1.52 +#include <sys/stat.h> 
    1.53 +
    1.54 +using namespace Assimp;
    1.55 +
    1.56 +// ----------------------------------------------------------------------------------
    1.57 +DefaultIOStream::~DefaultIOStream()
    1.58 +{
    1.59 +	if (mFile) {
    1.60 +		::fclose(mFile);
    1.61 +	}
    1.62 +}
    1.63 +
    1.64 +// ----------------------------------------------------------------------------------
    1.65 +size_t DefaultIOStream::Read(void* pvBuffer, 
    1.66 +	size_t pSize, 
    1.67 +	size_t pCount)
    1.68 +{
    1.69 +	ai_assert(NULL != pvBuffer && 0 != pSize && 0 != pCount);
    1.70 +	return (mFile ? ::fread(pvBuffer, pSize, pCount, mFile) : 0);
    1.71 +}
    1.72 +
    1.73 +// ----------------------------------------------------------------------------------
    1.74 +size_t DefaultIOStream::Write(const void* pvBuffer, 
    1.75 +	size_t pSize,
    1.76 +	size_t pCount)
    1.77 +{
    1.78 +	ai_assert(NULL != pvBuffer && 0 != pSize && 0 != pCount);
    1.79 +	return (mFile ? ::fwrite(pvBuffer, pSize, pCount, mFile) : 0);
    1.80 +}
    1.81 +
    1.82 +// ----------------------------------------------------------------------------------
    1.83 +aiReturn DefaultIOStream::Seek(size_t pOffset,
    1.84 +	 aiOrigin pOrigin)
    1.85 +{
    1.86 +	if (!mFile) {
    1.87 +		return AI_FAILURE;
    1.88 +	}
    1.89 +
    1.90 +	// Just to check whether our enum maps one to one with the CRT constants
    1.91 +	BOOST_STATIC_ASSERT(aiOrigin_CUR == SEEK_CUR && 
    1.92 +		aiOrigin_END == SEEK_END && aiOrigin_SET == SEEK_SET);
    1.93 +
    1.94 +	// do the seek
    1.95 +	return (0 == ::fseek(mFile, (long)pOffset,(int)pOrigin) ? AI_SUCCESS : AI_FAILURE);
    1.96 +}
    1.97 +
    1.98 +// ----------------------------------------------------------------------------------
    1.99 +size_t DefaultIOStream::Tell() const
   1.100 +{
   1.101 +	if (!mFile) {
   1.102 +		return 0;
   1.103 +	}
   1.104 +	return ::ftell(mFile);
   1.105 +}
   1.106 +
   1.107 +// ----------------------------------------------------------------------------------
   1.108 +size_t DefaultIOStream::FileSize() const
   1.109 +{
   1.110 +	if (! mFile || mFilename.empty()) {
   1.111 +		return 0;
   1.112 +	}
   1.113 +	
   1.114 +	if (SIZE_MAX == cachedSize) {
   1.115 +
   1.116 +		// TODO: Is that really faster if we're already owning a handle to the file?
   1.117 +#if defined _WIN32 && !defined __GNUC__
   1.118 +		struct __stat64 fileStat; 
   1.119 +		int err = _stat64(  mFilename.c_str(), &fileStat ); 
   1.120 +		if (0 != err) 
   1.121 +			return 0; 
   1.122 +		cachedSize = (size_t) (fileStat.st_size); 
   1.123 +#else
   1.124 +		struct stat fileStat; 
   1.125 +		int err = stat(mFilename.c_str(), &fileStat ); 
   1.126 +		if (0 != err) 
   1.127 +			return 0; 
   1.128 +		cachedSize = (size_t) (fileStat.st_size); 
   1.129 +#endif
   1.130 +	}
   1.131 +	return cachedSize;
   1.132 +}
   1.133 +
   1.134 +// ----------------------------------------------------------------------------------
   1.135 +void DefaultIOStream::Flush()
   1.136 +{
   1.137 +	if (mFile) {
   1.138 +		::fflush(mFile);
   1.139 +	}
   1.140 +}
   1.141 +
   1.142 +// ----------------------------------------------------------------------------------