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/*
* Copyright (C) 2021-2022 The Exult Team
*
* 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
* (at your option) 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef SDLRWOPSSTREAMBUF_H_
#define SDLRWOPSSTREAMBUF_H_
#include <streambuf>
// Partly derived from libc++'s basic_filebuf
// https://github.com/llvm-mirror/libcxx/blob/master/include/fstream
// Part of the LLVM Project, under the Apache License v2.0 with LLVM
// Exceptions. See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
class SdlRwopsStreambuf : public std::streambuf {
public:
SdlRwopsStreambuf();
virtual ~SdlRwopsStreambuf();
bool is_open() const;
SdlRwopsStreambuf* open(const char* s, std::ios_base::openmode mode);
SdlRwopsStreambuf* close();
protected:
int_type underflow() override;
int_type pbackfail(int_type c = traits_type::eof()) override;
int_type overflow(int_type c = traits_type::eof()) override;
pos_type seekoff(
off_type off, std::ios_base::seekdir dir,
std::ios_base::openmode which
= std::ios_base::in | std::ios_base::out) override;
pos_type seekpos(
pos_type sp, std::ios_base::openmode which
= std::ios_base::in | std::ios_base::out) override;
int sync() override;
private:
char m_buffer[8];
struct SDL_RWops* m_context;
std::ios_base::openmode m_openMode;
std::ios_base::openmode m_currentMode;
};
#endif // SDLRWOPSSTREAMBUF_H_
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