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Diffstat (limited to 'Build/source/utils/asymptote/prc/PRCTools/bitData.h')
-rw-r--r-- | Build/source/utils/asymptote/prc/PRCTools/bitData.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/Build/source/utils/asymptote/prc/PRCTools/bitData.h b/Build/source/utils/asymptote/prc/PRCTools/bitData.h new file mode 100644 index 00000000000..44a4fbe8167 --- /dev/null +++ b/Build/source/utils/asymptote/prc/PRCTools/bitData.h @@ -0,0 +1,62 @@ +/************ +* +* This file is part of a tool for reading 3D content in the PRC format. +* Copyright (C) 2008 Orest Shardt <shardtor (at) gmail dot com> +* +* 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 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 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/>. +* +*************/ + +#ifndef __BITDATA_H +#define __BITDATA_H + +#include <iostream> +#include <string> + +struct BitPosition +{ + unsigned int byteIndex; + unsigned int bitIndex; +}; + +class BitByBitData +{ + public: + BitByBitData(char* s,unsigned int l) : start(s),data(s),length(l), + bitMask(0x80),showBits(false),failed(false) {} + + void tellPosition(); + BitPosition getPosition(); + void setPosition(const BitPosition&); + void setPosition(unsigned int,unsigned int); + void setShowBits(bool); + bool readBit(); + unsigned char readChar(); + + unsigned int readUnsignedInt(); + std::string readString(); + int readInt(); + double readDouble(); + + private: + char *start; // first byte so we know where we are + char *data; // last byte read + unsigned int length; + unsigned char bitMask; // mask to read next bit of current byte + bool showBits; // show each bit read? + bool failed; + void nextBit(); // shift bit mask and get next byte if needed +}; + +#endif // __BITDATA_H |