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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#if !defined(DISABLE_STDIO_FILESTREAM)
// Disable symbol overrides so that we can use FILE, fopen etc.
#define FORBIDDEN_SYMBOL_ALLOW_ALL
// for Windows unicode fopen(): _wfopen()
#if defined(WIN32) && defined(UNICODE)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include "backends/platform/sdl/win32/win32_wrapper.h"
#endif
// Include this after windows.h so we don't get a warning for redefining ARRAYSIZE
#include "backends/fs/stdiostream.h"
StdioStream::StdioStream(void *handle) : _handle(handle) {
assert(handle);
}
StdioStream::~StdioStream() {
fclose((FILE *)_handle);
}
bool StdioStream::err() const {
return ferror((FILE *)_handle) != 0;
}
void StdioStream::clearErr() {
clearerr((FILE *)_handle);
}
bool StdioStream::eos() const {
return feof((FILE *)_handle) != 0;
}
int64 StdioStream::pos() const {
#if defined(WIN32)
return _ftelli64((FILE *)_handle);
#elif defined(HAS_FSEEKO_OFFT_64)
return ftello((FILE *)_handle);
#elif defined(HAS_FSEEKO64)
return ftello64((FILE *)_handle);
#else
return ftell((FILE *)_handle);
#endif
}
int64 StdioStream::size() const {
#if defined(WIN32)
int64 oldPos = _ftelli64((FILE *)_handle);
_fseeki64((FILE *)_handle, 0, SEEK_END);
int64 length = _ftelli64((FILE *)_handle);
_fseeki64((FILE *)_handle, oldPos, SEEK_SET);
#elif defined(HAS_FSEEKO_OFFT_64)
int64 oldPos = ftello((FILE *)_handle);
fseeko((FILE *)_handle, 0, SEEK_END);
int64 length = ftello((FILE *)_handle);
fseeko((FILE *)_handle, oldPos, SEEK_SET);
#elif defined(HAS_FSEEKO64)
int64 oldPos = ftello64((FILE *)_handle);
fseeko64((FILE *)_handle, 0, SEEK_END);
int64 length = ftello64((FILE *)_handle);
fseeko64((FILE *)_handle, oldPos, SEEK_SET);
#else
int64 oldPos = ftell((FILE *)_handle);
fseek((FILE *)_handle, 0, SEEK_END);
int64 length = ftell((FILE *)_handle);
fseek((FILE *)_handle, oldPos, SEEK_SET);
#endif
return length;
}
bool StdioStream::seek(int64 offs, int whence) {
#if defined(WIN32)
return _fseeki64((FILE *)_handle, offs, whence) == 0;
#elif defined(HAS_FSEEKO_OFFT_64)
return fseeko((FILE *)_handle, offs, whence) == 0;
#elif defined(HAS_FSEEKO64)
return fseeko64((FILE *)_handle, offs, whence) == 0;
#else
return fseek((FILE *)_handle, offs, whence) == 0;
#endif
}
uint32 StdioStream::read(void *ptr, uint32 len) {
return fread((byte *)ptr, 1, len, (FILE *)_handle);
}
bool StdioStream::setBufferSize(uint32 bufferSize) {
if (bufferSize != 0) {
return setvbuf((FILE *)_handle, nullptr, _IOFBF, bufferSize) == 0;
} else {
return setvbuf((FILE *)_handle, nullptr, _IONBF, 0) == 0;
}
}
uint32 StdioStream::write(const void *ptr, uint32 len) {
return fwrite(ptr, 1, len, (FILE *)_handle);
}
bool StdioStream::flush() {
return fflush((FILE *)_handle) == 0;
}
StdioStream *StdioStream::makeFromPath(const Common::String &path, bool writeMode) {
#if defined(WIN32) && defined(UNICODE)
wchar_t *wPath = Win32::stringToTchar(path);
FILE *handle = _wfopen(wPath, writeMode ? L"wb" : L"rb");
free(wPath);
#elif defined(HAS_FSEEKO64)
FILE *handle = fopen64(path.c_str(), writeMode ? "wb" : "rb");
#else
FILE *handle = fopen(path.c_str(), writeMode ? "wb" : "rb");
#endif
if (handle)
return new StdioStream(handle);
return nullptr;
}
#endif
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