vrshoot
diff libs/assimp/DefaultIOStream.cpp @ 0:b2f14e535253
initial commit
author | John Tsiombikas <nuclear@member.fsf.org> |
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date | Sat, 01 Feb 2014 19:58:19 +0200 |
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children |
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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 +// ----------------------------------------------------------------------------------