mirror of
https://github.com/libretro/scummvm.git
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135 lines
3.2 KiB
C++
135 lines
3.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "common/util.h"
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#include "common/savefile.h"
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#include "common/str.h"
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#if defined(USE_CLOUD) && defined(USE_LIBCURL)
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#include "backends/cloud/cloudmanager.h"
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#endif
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namespace Common {
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OutSaveFile::OutSaveFile(WriteStream *w): _wrapped(w) {}
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OutSaveFile::~OutSaveFile() {
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delete _wrapped;
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}
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bool OutSaveFile::err() const { return _wrapped->err(); }
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void OutSaveFile::clearErr() { _wrapped->clearErr(); }
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void OutSaveFile::finalize() {
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_wrapped->finalize();
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#if defined(USE_CLOUD) && defined(USE_LIBCURL)
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CloudMan.syncSaves();
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#endif
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}
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bool OutSaveFile::flush() { return _wrapped->flush(); }
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uint32 OutSaveFile::write(const void *dataPtr, uint32 dataSize) {
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return _wrapped->write(dataPtr, dataSize);
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}
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int64 OutSaveFile::pos() const {
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return _wrapped->pos();
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}
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bool OutSaveFile::seek(int64 offset, int whence) {
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Common::SeekableWriteStream *sws =
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dynamic_cast<Common::SeekableWriteStream *>(_wrapped);
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if (sws) {
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return sws->seek(offset, whence);
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} else {
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warning("Seeking isn't supported for compressed save files");
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return false;
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}
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}
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int64 OutSaveFile::size() const {
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Common::SeekableWriteStream *sws =
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dynamic_cast<Common::SeekableWriteStream *>(_wrapped);
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if (sws) {
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return sws->size();
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} else {
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warning("Size isn't supported for compressed save files");
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return -1;
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}
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}
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bool SaveFileManager::copySavefile(const String &oldFilename, const String &newFilename, bool compress) {
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InSaveFile *inFile = nullptr;
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OutSaveFile *outFile = nullptr;
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uint32 size = 0;
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void *buffer = nullptr;
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bool success = false;
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inFile = openForLoading(oldFilename);
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if (inFile) {
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size = inFile->size();
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buffer = malloc(size);
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assert(buffer);
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outFile = openForSaving(newFilename, compress);
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if (buffer && outFile) {
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inFile->read(buffer, size);
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bool error = inFile->err();
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delete inFile;
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inFile = nullptr;
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if (!error) {
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outFile->write(buffer, size);
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outFile->finalize();
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success = !outFile->err();
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}
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}
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free(buffer);
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delete outFile;
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delete inFile;
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}
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return success;
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}
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bool SaveFileManager::renameSavefile(const String &oldFilename, const String &newFilename, bool compress) {
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if (!copySavefile(oldFilename, newFilename, compress))
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return false;
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return removeSavefile(oldFilename);
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}
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String SaveFileManager::popErrorDesc() {
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String err = _errorDesc;
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clearError();
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return err;
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}
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} // End of namespace Common
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