loicloic
92 lines
1.8 KiB
C++
92 lines
1.8 KiB
C++
/*
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www.freedo.org
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The first and only working 3DO multiplayer emulator.
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The FreeDO licensed under modified GNU LGPL, with following notes:
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* The owners and original authors of the FreeDO have full right to develop closed source derivative work.
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* Any non-commercial uses of the FreeDO sources or any knowledge obtained by studying or reverse engineering
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of the sources, or any other material published by FreeDO have to be accompanied with full credits.
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* Any commercial uses of FreeDO sources or any knowledge obtained by studying or reverse engineering of the sources,
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or any other material published by FreeDO is strictly forbidden without owners approval.
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The above notes are taking precedence over GNU LGPL in conflicting situations.
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Project authors:
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Alexander Troosh
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Maxim Grishin
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Allen Wright
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John Sammons
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Felix Lazarev
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*/
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#ifndef BITOPCLASS_DEFINITION_HEADER
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#define BITOPCLASS_DEFINITION_HEADER
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#include "types.h"
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class BitReaderBig
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{
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protected:
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uint32 buf;
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uint32 point;
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int32 bitpoint;
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int32 bitset;
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public:
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BitReaderBig()
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{
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buf=0;
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bitset=1;
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point=0;
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bitpoint=0;
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};
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BitReaderBig(uint32 buff)
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{
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buf=buff;
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point=0;
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bitpoint=0;
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bitset=1;
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};
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void AttachBuffer(uint32 buff)
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{
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buf=buff;
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point=0;
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bitpoint=0;
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};
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void SetBitRate(uint8 bits)
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{
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bitset=bits;
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if(bitset>32)bitset=32;
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if(!bitset)bitset=1;
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};
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void SetPosition(uint32 bytepos, uint8 bitpos)
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{
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point=bytepos;
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bitpoint=bitpos;
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};
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void SetPos(uint32 bitpos){SetPosition(bitpos>>3,bitpos&7);};
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uint32 GetBytePose(){return point;};
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uint32 Read();
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uint32 Read(uint8 bits);
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void Skip(uint32 bits)
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{
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bits+=bitpoint;
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point+=(bits>>3);
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bitpoint=bits&7;
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};
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};
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#endif
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