140 lines
4.7 KiB
C++
140 lines
4.7 KiB
C++
/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2022, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the
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following conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------
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*/
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/**
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* @file
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* @brief Default file I/O using fXXX()-family of functions
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*/
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#pragma once
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#ifndef AI_DEFAULTIOSTREAM_H_INC
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#define AI_DEFAULTIOSTREAM_H_INC
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#ifdef __GNUC__
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# pragma GCC system_header
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#endif
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#include <cstdio>
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#include <assimp/IOStream.hpp>
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#include <assimp/importerdesc.h>
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namespace Assimp {
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// ----------------------------------------------------------------------------------
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//! @class DefaultIOStream
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//! @brief Default IO implementation, use standard IO operations
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//! @note An instance of this class can exist without a valid file handle
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//! attached to it. All calls fail, but the instance can nevertheless be
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//! used with no restrictions.
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class ASSIMP_API DefaultIOStream : public IOStream {
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friend class DefaultIOSystem;
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#if __ANDROID__
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# if __ANDROID_API__ > 9
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# if defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
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friend class AndroidJNIIOSystem;
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# endif // defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
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# endif // __ANDROID_API__ > 9
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#endif // __ANDROID__
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protected:
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/// @brief
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DefaultIOStream() AI_NO_EXCEPT;
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/// @brief The class constructor with the file name and the stream.
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/// @param pFile The file-streaam
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/// @param strFilename The file name
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DefaultIOStream(FILE* pFile, const std::string &strFilename);
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public:
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/** Destructor public to allow simple deletion to close the file. */
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~DefaultIOStream ();
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// -------------------------------------------------------------------
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/// Read from stream
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size_t Read(void* pvBuffer, size_t pSize, size_t pCount) override;
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// -------------------------------------------------------------------
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/// Write to stream
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size_t Write(const void* pvBuffer, size_t pSize, size_t pCount) override;
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// -------------------------------------------------------------------
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/// Seek specific position
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aiReturn Seek(size_t pOffset, aiOrigin pOrigin) override;
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// -------------------------------------------------------------------
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/// Get current seek position
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size_t Tell() const override;
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// -------------------------------------------------------------------
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/// Get size of file
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size_t FileSize() const override;
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// -------------------------------------------------------------------
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/// Flush file contents
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void Flush() override;
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private:
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FILE* mFile;
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std::string mFilename;
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mutable size_t mCachedSize;
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};
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// ----------------------------------------------------------------------------------
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AI_FORCE_INLINE DefaultIOStream::DefaultIOStream() AI_NO_EXCEPT :
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mFile(nullptr),
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mFilename(),
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mCachedSize(SIZE_MAX) {
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// empty
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}
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// ----------------------------------------------------------------------------------
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AI_FORCE_INLINE DefaultIOStream::DefaultIOStream (FILE* pFile, const std::string &strFilename) :
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mFile(pFile),
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mFilename(strFilename),
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mCachedSize(SIZE_MAX) {
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// empty
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}
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// ----------------------------------------------------------------------------------
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} // ns assimp
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#endif //!!AI_DEFAULTIOSTREAM_H_INC
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