diff options
Diffstat (limited to 'fbreader/src/formats/pdb/BitReader.cpp')
-rw-r--r-- | fbreader/src/formats/pdb/BitReader.cpp | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/fbreader/src/formats/pdb/BitReader.cpp b/fbreader/src/formats/pdb/BitReader.cpp deleted file mode 100644 index 551aaf3..0000000 --- a/fbreader/src/formats/pdb/BitReader.cpp +++ /dev/null @@ -1,57 +0,0 @@ -/* - * Copyright (C) 2004-2012 Geometer Plus <[email protected]> - * - * 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., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -#include <cstring> -#include <string> - -#include "BitReader.h" - -BitReader::BitReader(const unsigned char* data, std::size_t size) : myOffset(0), myLength(size * 8) { - myData = new unsigned char[size + 4]; - std::memcpy(myData, data, size); - std::memset(myData + size, 0x00, 4); -} - -BitReader::~BitReader() { - delete[] myData; -} - -unsigned long long BitReader::peek(std::size_t n) { - if (n > 32) { - return 0; - } - unsigned long long r = 0; - std::size_t g = 0; - while (g < n) { - r = (r << 8) | myData[(myOffset + g) >> 3]; - g = g + 8 - ((myOffset+g) & 7); - } - unsigned long long mask = 1; - mask = (mask << n) - 1; - return (r >> (g - n)) & mask; -} - -bool BitReader::eat(std::size_t n) { - myOffset += n; - return myOffset <= myLength; -} - -std::size_t BitReader::left() const { - return myLength - myOffset; -} |