mirror of
https://github.com/ZDoom/qzdoom.git
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112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
/*
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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 "../files.h"
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#include "wm_error.h"
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#include "file_io.h"
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#include "pathexpander.h"
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#include "cmdlib.h"
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static PathExpander wmPathExpander;
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unsigned char *_WM_BufferFile(const char *filename, unsigned long int *size, bool ismain)
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{
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FileReader *fp;
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int lumpnum;
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if (ismain)
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{
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wmPathExpander.openmode = PathExpander::OM_FILEORLUMP;
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wmPathExpander.clearPathlist();
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#ifdef _WIN32
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wmPathExpander.addToPathlist("C:\\TIMIDITY");
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wmPathExpander.addToPathlist("\\TIMIDITY");
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wmPathExpander.addToPathlist(progdir);
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#else
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wmPathExpander.addToPathlist("/usr/local/lib/timidity");
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wmPathExpander.addToPathlist("/etc/timidity");
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wmPathExpander.addToPathlist("/etc");
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#endif
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}
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if (!(fp = wmPathExpander.openFileReader(filename, &lumpnum)))
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return NULL;
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if (ismain)
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{
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if (lumpnum > 0)
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{
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wmPathExpander.openmode = PathExpander::OM_LUMP;
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wmPathExpander.clearPathlist(); // when reading from a PK3 we don't want to use any external path
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}
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else
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{
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wmPathExpander.openmode = PathExpander::OM_FILE;
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}
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}
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if (fp == NULL)
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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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long fsize = fp->GetLength();
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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->Read(data, fsize);
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delete fp;
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data[fsize] = 0;
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*size = fsize;
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return data;
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}
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