mirror of
https://github.com/YGGverse/xash3d-fwgs.git
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5e0a0765ce
The `.editorconfig` file in this repo is configured to trim all trailing
whitespace regardless of whether the line is modified.
Trims all trailing whitespace in the repository to make the codebase easier
to work with in editors that respect `.editorconfig`.
`git blame` becomes less useful on these lines but it already isn't very useful.
Commands:
```
find . -type f -name '*.h' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
find . -type f -name '*.c' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
```
136 lines
5.8 KiB
C
136 lines
5.8 KiB
C
/*
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net_buffer.h - network message io functions
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Copyright (C) 2010 Uncle Mike
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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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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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#ifndef NET_BUFFER_H
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#define NET_BUFFER_H
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#include "enginefeatures.h"
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/*
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==============================================================================
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MESSAGE IO FUNCTIONS
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Handles byte ordering and avoids alignment errors
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==============================================================================
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*/
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// Pad a number so it lies on an N byte boundary.
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// So PAD_NUMBER(0,4) is 0 and PAD_NUMBER(1,4) is 4
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#define PAD_NUMBER( num, boundary ) ((( num ) + (( boundary ) - 1 )) / ( boundary )) * ( boundary )
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_inline int BitByte( int bits )
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{
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return PAD_NUMBER( bits, 8 ) >> 3;
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}
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struct sizebuf_s
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{
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qboolean bOverflow; // overflow reading or writing
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const char *pDebugName; // buffer name (pointer to const name)
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byte *pData;
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int iCurBit;
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int nDataBits;
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};
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#define MSG_StartReading MSG_StartWriting
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#define MSG_GetNumBytesRead MSG_GetNumBytesWritten
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#define MSG_GetRealBytesRead MSG_GetRealBytesWritten
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#define MSG_GetNumBitsRead MSG_GetNumBitsWritten
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#define MSG_ReadBitAngles MSG_ReadBitVec3Coord
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#define MSG_ReadString( sb ) MSG_ReadStringExt( sb, false )
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#define MSG_ReadStringLine( sb ) MSG_ReadStringExt( sb, true )
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#define MSG_ReadAngle( sb ) (float)(MSG_ReadChar( sb ) * ( 360.0f / 256.0f ))
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#define MSG_Init( sb, name, data, bytes ) MSG_InitExt( sb, name, data, bytes, -1 )
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// common functions
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void MSG_InitExt( sizebuf_t *sb, const char *pDebugName, void *pData, int nBytes, int nMaxBits );
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void MSG_InitMasks( void ); // called once at startup engine
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int MSG_SeekToBit( sizebuf_t *sb, int bitPos, int whence );
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void MSG_ExciseBits( sizebuf_t *sb, int startbit, int bitstoremove );
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_inline int MSG_TellBit( sizebuf_t *sb ) { return sb->iCurBit; }
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_inline const char *MSG_GetName( sizebuf_t *sb ) { return sb->pDebugName; }
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qboolean MSG_CheckOverflow( sizebuf_t *sb );
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short MSG_BigShort( short swap );
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// init writing
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void MSG_StartWriting( sizebuf_t *sb, void *pData, int nBytes, int iStartBit, int nBits );
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void MSG_Clear( sizebuf_t *sb );
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// Bit-write functions
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void MSG_WriteOneBit( sizebuf_t *sb, int nValue );
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void MSG_WriteUBitLong( sizebuf_t *sb, uint curData, int numbits );
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void MSG_WriteSBitLong( sizebuf_t *sb, int data, int numbits );
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void MSG_WriteBitLong( sizebuf_t *sb, int data, int numbits, qboolean bSigned );
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qboolean MSG_WriteBits( sizebuf_t *sb, const void *pData, int nBits );
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void MSG_WriteBitAngle( sizebuf_t *sb, float fAngle, int numbits );
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void MSG_WriteBitFloat( sizebuf_t *sb, float val );
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// Byte-write functions
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#define MSG_BeginServerCmd( sb, cmd ) MSG_WriteCmdExt( sb, cmd, NS_SERVER, NULL )
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#define MSG_BeginClientCmd( sb, cmd ) MSG_WriteCmdExt( sb, cmd, NS_CLIENT, NULL )
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void MSG_WriteCmdExt( sizebuf_t *sb, int cmd, netsrc_t type, const char *name ); // message marker
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void MSG_WriteChar( sizebuf_t *sb, int val );
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void MSG_WriteByte( sizebuf_t *sb, int val );
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void MSG_WriteShort( sizebuf_t *sb, int val );
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void MSG_WriteWord( sizebuf_t *sb, int val );
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void MSG_WriteLong( sizebuf_t *sb, int val );
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void MSG_WriteDword( sizebuf_t *sb, dword val );
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void MSG_WriteCoord( sizebuf_t *sb, float val );
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void MSG_WriteFloat( sizebuf_t *sb, float val );
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void MSG_WriteVec3Coord( sizebuf_t *sb, const float *fa );
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void MSG_WriteVec3Angles( sizebuf_t *sb, const float *fa );
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qboolean MSG_WriteBytes( sizebuf_t *sb, const void *pBuf, int nBytes ); // same as MSG_WriteData
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qboolean MSG_WriteString( sizebuf_t *sb, const char *pStr ); // returns false if it overflows the buffer.
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// helper functions
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_inline int MSG_GetNumBytesWritten( sizebuf_t *sb ) { return BitByte( sb->iCurBit ); }
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_inline int MSG_GetRealBytesWritten( sizebuf_t *sb ) { return sb->iCurBit >> 3; } // unpadded
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_inline int MSG_GetNumBitsWritten( sizebuf_t *sb ) { return sb->iCurBit; }
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_inline int MSG_GetMaxBits( sizebuf_t *sb ) { return sb->nDataBits; }
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_inline int MSG_GetMaxBytes( sizebuf_t *sb ) { return sb->nDataBits >> 3; }
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_inline int MSG_GetNumBitsLeft( sizebuf_t *sb ) { return sb->nDataBits - sb->iCurBit; }
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_inline int MSG_GetNumBytesLeft( sizebuf_t *sb ) { return MSG_GetNumBitsLeft( sb ) >> 3; }
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_inline byte *MSG_GetData( sizebuf_t *sb ) { return sb->pData; }
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_inline byte *MSG_GetBuf( sizebuf_t *sb ) { return sb->pData; } // just an alias
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// Bit-read functions
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int MSG_ReadOneBit( sizebuf_t *sb );
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float MSG_ReadBitFloat( sizebuf_t *sb );
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qboolean MSG_ReadBits( sizebuf_t *sb, void *pOutData, int nBits );
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float MSG_ReadBitAngle( sizebuf_t *sb, int numbits );
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int MSG_ReadSBitLong( sizebuf_t *sb, int numbits );
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uint MSG_ReadUBitLong( sizebuf_t *sb, int numbits );
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uint MSG_ReadBitLong( sizebuf_t *sb, int numbits, qboolean bSigned );
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// Byte-read functions
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#define MSG_ReadServerCmd( sb ) MSG_ReadCmd( sb, NS_SERVER )
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#define MSG_ReadClientCmd( sb ) MSG_ReadCmd( sb, NS_CLIENT )
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int MSG_ReadCmd( sizebuf_t *sb, netsrc_t type ); // message marker
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int MSG_ReadChar( sizebuf_t *sb );
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int MSG_ReadByte( sizebuf_t *sb );
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int MSG_ReadShort( sizebuf_t *sb );
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int MSG_ReadWord( sizebuf_t *sb );
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int MSG_ReadLong( sizebuf_t *sb );
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dword MSG_ReadDword( sizebuf_t *sb );
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float MSG_ReadCoord( sizebuf_t *sb );
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float MSG_ReadFloat( sizebuf_t *sb );
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void MSG_ReadVec3Coord( sizebuf_t *sb, vec3_t fa );
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void MSG_ReadVec3Angles( sizebuf_t *sb, vec3_t fa );
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qboolean MSG_ReadBytes( sizebuf_t *sb, void *pOut, int nBytes );
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char *MSG_ReadStringExt( sizebuf_t *sb, qboolean bLine );
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#endif//NET_BUFFER_H
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