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/*
* The ManaPlus Client
* Copyright (C) 2013-2020 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* This code provides a glue layer between PhysicsFS and Simple Directmedia
* Layer's (SDL) RWops i/o abstraction.
*
* License: this code is public domain. I make no warranty that it is useful,
* correct, harmless, or environmentally safe.
*
* This particular file may be used however you like, including copying it
* verbatim into a closed-source project, exploiting it commercially, and
* removing any trace of my name from the source (although I hope you won't
* do that). I welcome enhancements and corrections to this file, but I do
* not require you to send me patches if you make changes. This code has
* NO WARRANTY.
*
* Unless otherwise stated, the rest of PhysicsFS falls under the zlib license.
* Please see LICENSE.txt in the root of the source tree.
*
* SDL falls under the LGPL license. You can get SDL at http://www.libsdl.org/
*
* This file was written by Ryan C. Gordon. (icculus@icculus.org).
*
* Copyright (C) 2012-2020 The ManaPlus Developers
*/
#include "fs/virtfs/rwops.h"
#include "fs/virtfs/file.h"
#include "fs/virtfs/fs.h"
#include "fs/virtfs/fsfuncs.h"
#include "utils/checkutils.h"
#include "utils/fuzzer.h"
PRAGMA48(GCC diagnostic push)
PRAGMA48(GCC diagnostic ignored "-Wshadow")
#include <SDL_rwops.h>
PRAGMA48(GCC diagnostic pop)
#include "debug.h"
namespace VirtFs
{
SDL_RWops *create_rwops(File *const file,
const std::string &restrict fname)
{
SDL_RWops *retval = nullptr;
if (file == nullptr)
{
reportAlways("VirtFs::rwops_seek: create rwops error: %s",
fname.c_str())
}
else
{
retval = SDL_AllocRW();
if (retval != nullptr)
{
#ifdef USE_SDL2
retval->size = file->funcs->rwops_size;
#endif // USE_SDL2
retval->seek = file->funcs->rwops_seek;
retval->read = file->funcs->rwops_read;
retval->write = file->funcs->rwops_write;
retval->close = file->funcs->rwops_close;
retval->hidden.unknown.data1 = file;
} /* if */
} /* else */
return retval;
} /* VirtFs::create_rwops */
#ifdef __APPLE__
static bool checkFilePath(const std::string &restrict fname)
{
if (fname.empty())
return false;
if (!exists(fname) || isDirectory(fname))
return false;
return true;
}
#endif // __APPLE__
SDL_RWops *rwopsOpenRead(const std::string &restrict fname)
{
BLOCK_START("RWopsopenRead")
#ifdef __APPLE__
if (!checkFilePath(fname))
return nullptr;
#endif // __APPLE__
#ifdef USE_FUZZER
if (Fuzzer::conditionTerminate(fname))
return nullptr;
#endif // USE_FUZZER
#ifdef USE_PROFILER
SDL_RWops *const ret = create_rwops(openRead(fname),
fname);
BLOCK_END("RWopsopenRead")
return ret;
#else // USE_PROFILER
return create_rwops(openRead(fname),
fname);
#endif // USE_PROFILER
} /* RWopsopenRead */
SDL_RWops *rwopsOpenWrite(const std::string &restrict fname)
{
#ifdef __APPLE__
if (!checkFilePath(fname))
return nullptr;
#endif // __APPLE__
return create_rwops(openWrite(fname),
fname);
} /* RWopsopenWrite */
SDL_RWops *rwopsOpenAppend(const std::string &restrict fname)
{
#ifdef __APPLE__
if (!checkFilePath(fname))
return nullptr;
#endif // __APPLE__
return create_rwops(openAppend(fname),
fname);
} /* RWopsopenAppend */
} // namespace VirtFs
/* end of virtfsrwops.c ... */
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