46 lines
No EOL
1.3 KiB
C
46 lines
No EOL
1.3 KiB
C
//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $NoKeywords: $
|
|
//
|
|
//=============================================================================//
|
|
#ifndef COMMONMACROS_H
|
|
#define COMMONMACROS_H
|
|
|
|
#ifdef _WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
|
|
// -------------------------------------------------------
|
|
//
|
|
// commonmacros.h
|
|
//
|
|
// This should contain ONLY general purpose macros that are
|
|
// appropriate for use in engine/launcher/all tools
|
|
//
|
|
// -------------------------------------------------------
|
|
|
|
// Makes a 4-byte "packed ID" int out of 4 characters
|
|
#define MAKEID(d,c,b,a) ( ((int)(a) << 24) | ((int)(b) << 16) | ((int)(c) << 8) | ((int)(d)) )
|
|
|
|
// Compares a string with a 4-byte packed ID constant
|
|
#define STRING_MATCHES_ID( p, id ) ( (*((int *)(p)) == (id) ) ? true : false )
|
|
#define ID_TO_STRING( id, p ) ( (p)[3] = (((id)>>24) & 0xFF), (p)[2] = (((id)>>16) & 0xFF), (p)[1] = (((id)>>8) & 0xFF), (p)[0] = (((id)>>0) & 0xFF) )
|
|
|
|
#ifdef ARRAYSIZE
|
|
#undef ARRAYSIZE
|
|
#endif
|
|
#define ARRAYSIZE(p) (sizeof(p)/sizeof(p[0]))
|
|
|
|
#define SETBITS(iBitVector, bits) ((iBitVector) |= (bits))
|
|
#define CLEARBITS(iBitVector, bits) ((iBitVector) &= ~(bits))
|
|
#define FBitSet(iBitVector, bit) ((iBitVector) & (bit))
|
|
|
|
inline bool IsPowerOfTwo( int value )
|
|
{
|
|
return (value & ( value - 1 )) == 0;
|
|
}
|
|
|
|
#endif // COMMONMACROS_H
|