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Diffstat (limited to 'audio/softsynth/mt32/FileStream.cpp')
-rwxr-xr-x | audio/softsynth/mt32/FileStream.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/audio/softsynth/mt32/FileStream.cpp b/audio/softsynth/mt32/FileStream.cpp new file mode 100755 index 0000000000..768c5fcdab --- /dev/null +++ b/audio/softsynth/mt32/FileStream.cpp @@ -0,0 +1,83 @@ +/* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Dean Beeler, Jerome Fisher + * Copyright (C) 2011-2016 Dean Beeler, Jerome Fisher, Sergey V. Mikayev + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 2.1 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "internals.h" + +#include "FileStream.h" + +namespace MT32Emu { + +using std::ios_base; + +FileStream::FileStream() : ifsp(*new std::ifstream), data(NULL), size(0) +{} + +FileStream::~FileStream() { + // destructor closes ifsp + delete &ifsp; + delete[] data; +} + +size_t FileStream::getSize() { + if (size != 0) { + return size; + } + if (!ifsp.is_open()) { + return 0; + } + ifsp.seekg(0, ios_base::end); + size = size_t(ifsp.tellg()); + return size; +} + +const Bit8u *FileStream::getData() { + if (data != NULL) { + return data; + } + if (!ifsp.is_open()) { + return NULL; + } + if (getSize() == 0) { + return NULL; + } + Bit8u *fileData = new Bit8u[size]; + if (fileData == NULL) { + return NULL; + } + ifsp.seekg(0); + ifsp.read(reinterpret_cast<char *>(fileData), std::streamsize(size)); + if (size_t(ifsp.tellg()) != size) { + delete[] fileData; + return NULL; + } + data = fileData; + close(); + return data; +} + +bool FileStream::open(const char *filename) { + ifsp.clear(); + ifsp.open(filename, ios_base::in | ios_base::binary); + return !ifsp.fail(); +} + +void FileStream::close() { + ifsp.close(); + ifsp.clear(); +} + +} // namespace MT32Emu |