mirror of
https://github.com/ZDoom/ZMusic.git
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85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
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/*
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** file_io.cpp
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** ZDoom compatible file IO interface for WildMIDI
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** (This file was completely redone to remove the low level IO code references)
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**
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**---------------------------------------------------------------------------
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** Copyright 2010 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT 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 OF
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** 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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#include <errno.h>
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#include <memory>
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#include <stdlib.h>
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#include "wm_error.h"
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#include "file_io.h"
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namespace WildMidi
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{
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static const int WM_MAXFILESIZE = 0x1fffffff;
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unsigned char *_WM_BufferFile(MusicIO::SoundFontReaderInterface *reader, const char *filename, unsigned long int *size, std::string *fullname)
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{
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auto fp = reader->open_file(filename);
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if (!fp)
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{
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_WM_ERROR(__FUNCTION__, __LINE__, WM_ERR_LOAD, filename, errno);
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return NULL;
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}
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auto fsize = fp->filelength();
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if (fsize > WM_MAXFILESIZE)
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{
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/* don't bother loading suspiciously long files */
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_WM_ERROR(__FUNCTION__, __LINE__, WM_ERR_LONGFIL, filename, 0);
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return NULL;
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}
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unsigned char *data = (unsigned char*)malloc(fsize+1);
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if (data == NULL)
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{
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_WM_ERROR(__FUNCTION__, __LINE__, WM_ERR_MEM, NULL, errno);
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_WM_ERROR(__FUNCTION__, __LINE__, WM_ERR_LOAD, filename, errno);
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return NULL;
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}
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fp->seek(0, SEEK_SET);
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fp->read(data, fsize);
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if (fullname)* fullname = fp->filename;
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fp->close();
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data[fsize] = 0;
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*size = (long)fsize;
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return data;
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}
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}
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