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* remove roompoly * git subrepo pull --force tools/ZAPD subrepo: subdir: "tools/ZAPD" merged: "fd4d53a26" upstream: origin: "https://github.com/zeldaret/ZAPD.git" branch: "master" commit: "fd4d53a26" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596"
357 lines
12 KiB
C++
357 lines
12 KiB
C++
/*
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---------------------------------------------------------------------------
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Open Asset Import Library (assimp)
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---------------------------------------------------------------------------
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Copyright (c) 2006-2019, 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 following
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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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/** @file IOSystem.hpp
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* @brief File system wrapper for C++. Inherit this class to supply
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* custom file handling logic to the Import library.
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*/
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#pragma once
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#ifndef AI_IOSYSTEM_H_INC
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#define AI_IOSYSTEM_H_INC
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#ifndef __cplusplus
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# error This header requires C++ to be used. aiFileIO.h is the \
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corresponding C interface.
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#endif
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#include "types.h"
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#ifdef _WIN32
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# include <direct.h>
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# include <stdlib.h>
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# include <stdio.h>
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#else
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# include <sys/stat.h>
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# include <sys/types.h>
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# include <unistd.h>
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#endif // _WIN32
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#include <vector>
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namespace Assimp {
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class IOStream;
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// ---------------------------------------------------------------------------
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/** @brief CPP-API: Interface to the file system.
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*
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* Derive an own implementation from this interface to supply custom file handling
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* to the importer library. If you implement this interface, you also want to
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* supply a custom implementation for IOStream.
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*
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* @see Importer::SetIOHandler()
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*/
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class ASSIMP_API IOSystem
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#ifndef SWIG
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: public Intern::AllocateFromAssimpHeap
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#endif
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{
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public:
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// -------------------------------------------------------------------
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/** @brief Default constructor.
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*
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* Create an instance of your derived class and assign it to an
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* #Assimp::Importer instance by calling Importer::SetIOHandler().
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*/
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IOSystem() AI_NO_EXCEPT;
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// -------------------------------------------------------------------
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/** @brief Virtual destructor.
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*
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* It is safe to be called from within DLL Assimp, we're constructed
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* on Assimp's heap.
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*/
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virtual ~IOSystem();
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// -------------------------------------------------------------------
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/** @brief For backward compatibility
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* @see Exists(const char*)
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*/
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AI_FORCE_INLINE bool Exists( const std::string& pFile) const;
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// -------------------------------------------------------------------
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/** @brief Tests for the existence of a file at the given path.
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*
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* @param pFile Path to the file
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* @return true if there is a file with this path, else false.
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*/
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virtual bool Exists( const char* pFile) const = 0;
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// -------------------------------------------------------------------
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/** @brief Returns the system specific directory separator
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* @return System specific directory separator
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*/
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virtual char getOsSeparator() const = 0;
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// -------------------------------------------------------------------
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/** @brief Open a new file with a given path.
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*
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* When the access to the file is finished, call Close() to release
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* all associated resources (or the virtual dtor of the IOStream).
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*
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* @param pFile Path to the file
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* @param pMode Desired file I/O mode. Required are: "wb", "w", "wt",
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* "rb", "r", "rt".
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*
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* @return New IOStream interface allowing the lib to access
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* the underlying file.
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* @note When implementing this class to provide custom IO handling,
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* you probably have to supply an own implementation of IOStream as well.
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*/
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virtual IOStream* Open(const char* pFile,
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const char* pMode = "rb") = 0;
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// -------------------------------------------------------------------
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/** @brief For backward compatibility
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* @see Open(const char*, const char*)
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*/
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inline IOStream* Open(const std::string& pFile,
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const std::string& pMode = std::string("rb"));
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// -------------------------------------------------------------------
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/** @brief Closes the given file and releases all resources
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* associated with it.
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* @param pFile The file instance previously created by Open().
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*/
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virtual void Close( IOStream* pFile) = 0;
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// -------------------------------------------------------------------
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/** @brief Compares two paths and check whether the point to
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* identical files.
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*
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* The dummy implementation of this virtual member performs a
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* case-insensitive comparison of the given strings. The default IO
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* system implementation uses OS mechanisms to convert relative into
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* absolute paths, so the result can be trusted.
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* @param one First file
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* @param second Second file
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* @return true if the paths point to the same file. The file needn't
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* be existing, however.
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*/
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virtual bool ComparePaths (const char* one,
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const char* second) const;
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// -------------------------------------------------------------------
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/** @brief For backward compatibility
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* @see ComparePaths(const char*, const char*)
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*/
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inline bool ComparePaths (const std::string& one,
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const std::string& second) const;
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// -------------------------------------------------------------------
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/** @brief Pushes a new directory onto the directory stack.
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* @param path Path to push onto the stack.
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* @return True, when push was successful, false if path is empty.
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*/
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virtual bool PushDirectory( const std::string &path );
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// -------------------------------------------------------------------
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/** @brief Returns the top directory from the stack.
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* @return The directory on the top of the stack.
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* Returns empty when no directory was pushed to the stack.
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*/
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virtual const std::string &CurrentDirectory() const;
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// -------------------------------------------------------------------
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/** @brief Returns the number of directories stored on the stack.
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* @return The number of directories of the stack.
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*/
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virtual size_t StackSize() const;
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// -------------------------------------------------------------------
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/** @brief Pops the top directory from the stack.
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* @return True, when a directory was on the stack. False if no
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* directory was on the stack.
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*/
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virtual bool PopDirectory();
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// -------------------------------------------------------------------
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/** @brief CReates an new directory at the given path.
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* @param path [in] The path to create.
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* @return True, when a directory was created. False if the directory
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* cannot be created.
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*/
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virtual bool CreateDirectory( const std::string &path );
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// -------------------------------------------------------------------
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/** @brief Will change the current directory to the given path.
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* @param path [in] The path to change to.
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* @return True, when the directory has changed successfully.
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*/
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virtual bool ChangeDirectory( const std::string &path );
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virtual bool DeleteFile( const std::string &file );
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private:
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std::vector<std::string> m_pathStack;
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};
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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IOSystem::IOSystem() AI_NO_EXCEPT
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: m_pathStack() {
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// empty
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}
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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IOSystem::~IOSystem() {
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// empty
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}
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// ----------------------------------------------------------------------------
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// For compatibility, the interface of some functions taking a std::string was
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// changed to const char* to avoid crashes between binary incompatible STL
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// versions. This code her is inlined, so it shouldn't cause any problems.
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// ----------------------------------------------------------------------------
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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IOStream* IOSystem::Open(const std::string& pFile, const std::string& pMode) {
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// NOTE:
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// For compatibility, interface was changed to const char* to
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// avoid crashes between binary incompatible STL versions
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return Open(pFile.c_str(),pMode.c_str());
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}
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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bool IOSystem::Exists( const std::string& pFile) const {
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// NOTE:
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// For compatibility, interface was changed to const char* to
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// avoid crashes between binary incompatible STL versions
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return Exists(pFile.c_str());
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}
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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bool IOSystem::ComparePaths (const std::string& one, const std::string& second) const {
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// NOTE:
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// For compatibility, interface was changed to const char* to
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// avoid crashes between binary incompatible STL versions
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return ComparePaths(one.c_str(),second.c_str());
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}
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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bool IOSystem::PushDirectory( const std::string &path ) {
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if ( path.empty() ) {
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return false;
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}
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m_pathStack.push_back( path );
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return true;
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}
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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const std::string &IOSystem::CurrentDirectory() const {
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if ( m_pathStack.empty() ) {
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static const std::string Dummy("");
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return Dummy;
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}
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return m_pathStack[ m_pathStack.size()-1 ];
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}
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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size_t IOSystem::StackSize() const {
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return m_pathStack.size();
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}
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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bool IOSystem::PopDirectory() {
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if ( m_pathStack.empty() ) {
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return false;
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}
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m_pathStack.pop_back();
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return true;
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}
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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bool IOSystem::CreateDirectory( const std::string &path ) {
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if ( path.empty() ) {
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return false;
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}
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#ifdef _WIN32
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return 0 != ::_mkdir( path.c_str() );
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#else
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return 0 != ::mkdir( path.c_str(), 0777 );
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#endif // _WIN32
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}
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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bool IOSystem::ChangeDirectory( const std::string &path ) {
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if ( path.empty() ) {
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return false;
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}
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#ifdef _WIN32
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return 0 != ::_chdir( path.c_str() );
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#else
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return 0 != ::chdir( path.c_str() );
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#endif // _WIN32
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}
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// ----------------------------------------------------------------------------
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AI_FORCE_INLINE
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bool IOSystem::DeleteFile( const std::string &file ) {
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if ( file.empty() ) {
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return false;
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}
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const int retCode( ::remove( file.c_str() ) );
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return ( 0 == retCode );
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}
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} //!ns Assimp
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#endif //AI_IOSYSTEM_H_INC
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