138 lines
4.5 KiB
C++
138 lines
4.5 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 cfileio.h
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* @brief Defines generic C routines to access memory-mapped files
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*/
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#pragma once
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#ifndef AI_FILEIO_H_INC
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#define AI_FILEIO_H_INC
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#include <assimp/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct aiFileIO;
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struct aiFile;
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// aiFile callbacks
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typedef size_t (*aiFileWriteProc) (C_STRUCT aiFile*, const char*, size_t, size_t);
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typedef size_t (*aiFileReadProc) (C_STRUCT aiFile*, char*, size_t,size_t);
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typedef size_t (*aiFileTellProc) (C_STRUCT aiFile*);
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typedef void (*aiFileFlushProc) (C_STRUCT aiFile*);
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typedef C_ENUM aiReturn (*aiFileSeek) (C_STRUCT aiFile*, size_t, C_ENUM aiOrigin);
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// aiFileIO callbacks
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typedef C_STRUCT aiFile* (*aiFileOpenProc) (C_STRUCT aiFileIO*, const char*, const char*);
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typedef void (*aiFileCloseProc) (C_STRUCT aiFileIO*, C_STRUCT aiFile*);
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// Represents user-defined data
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typedef char* aiUserData;
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// ----------------------------------------------------------------------------------
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/** @brief C-API: File system callbacks
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*
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* Provided are functions to open and close files. Supply a custom structure to
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* the import function. If you don't, a default implementation is used. Use custom
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* file systems to enable reading from other sources, such as ZIPs
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* or memory locations. */
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struct aiFileIO
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{
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/** Function used to open a new file
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*/
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aiFileOpenProc OpenProc;
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/** Function used to close an existing file
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*/
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aiFileCloseProc CloseProc;
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/** User-defined, opaque data */
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aiUserData UserData;
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};
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// ----------------------------------------------------------------------------------
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/** @brief C-API: File callbacks
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*
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* Actually, it's a data structure to wrap a set of fXXXX (e.g fopen)
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* replacement functions.
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*
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* The default implementation of the functions utilizes the fXXX functions from
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* the CRT. However, you can supply a custom implementation to Assimp by
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* delivering a custom aiFileIO. Use this to enable reading from other sources,
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* such as ZIP archives or memory locations. */
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struct aiFile
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{
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/** Callback to read from a file */
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aiFileReadProc ReadProc;
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/** Callback to write to a file */
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aiFileWriteProc WriteProc;
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/** Callback to retrieve the current position of
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* the file cursor (ftell())
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*/
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aiFileTellProc TellProc;
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/** Callback to retrieve the size of the file,
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* in bytes
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*/
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aiFileTellProc FileSizeProc;
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/** Callback to set the current position
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* of the file cursor (fseek())
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*/
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aiFileSeek SeekProc;
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/** Callback to flush the file contents
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*/
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aiFileFlushProc FlushProc;
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/** User-defined, opaque data
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*/
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aiUserData UserData;
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};
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#ifdef __cplusplus
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}
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#endif
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#endif // AI_FILEIO_H_INC
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