зеркало из https://github.com/mozilla/mozjpeg.git
83 строки
1.9 KiB
C
83 строки
1.9 KiB
C
/* Copyright (C)2004 Landmark Graphics Corporation
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* Copyright (C)2005 Sun Microsystems, Inc.
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* Copyright (C)2010 D. R. Commander
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*
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* This library is free software and may be redistributed and/or modified under
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* the terms of the wxWindows Library License, Version 3.1 or (at your option)
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* any later version. The full license is in the LICENSE.txt file included
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* with this distribution.
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*
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* This library 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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* wxWindows Library License for more details.
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*/
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#ifndef __RRUTIL_H__
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#define __RRUTIL_H__
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#ifdef _WIN32
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#include <windows.h>
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#define sleep(t) Sleep((t)*1000)
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#define usleep(t) Sleep((t)/1000)
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#else
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#include <unistd.h>
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#define stricmp strcasecmp
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#define strnicmp strncasecmp
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#endif
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#ifndef min
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#define min(a,b) ((a)<(b)?(a):(b))
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#endif
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#ifndef max
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#define max(a,b) ((a)>(b)?(a):(b))
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#endif
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#define pow2(i) (1<<(i))
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#define isPow2(x) (((x)&(x-1))==0)
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#ifdef sgi
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#define _SC_NPROCESSORS_CONF _SC_NPROC_CONF
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#endif
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#ifdef sun
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#define __inline inline
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#endif
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static __inline int numprocs(void)
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{
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#ifdef _WIN32
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DWORD_PTR ProcAff, SysAff, i; int count=0;
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if(!GetProcessAffinityMask(GetCurrentProcess(), &ProcAff, &SysAff)) return(1);
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for(i=0; i<sizeof(long*)*8; i++) if(ProcAff&(1LL<<i)) count++;
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return(count);
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#elif defined (__APPLE__)
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return(1);
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#else
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long count=1;
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if((count=sysconf(_SC_NPROCESSORS_CONF))!=-1) return((int)count);
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else return(1);
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#endif
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}
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#define byteswap(i) ( \
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(((i) & 0xff000000) >> 24) | \
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(((i) & 0x00ff0000) >> 8) | \
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(((i) & 0x0000ff00) << 8) | \
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(((i) & 0x000000ff) << 24) )
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#define byteswap16(i) ( \
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(((i) & 0xff00) >> 8) | \
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(((i) & 0x00ff) << 8) )
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static __inline int littleendian(void)
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{
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unsigned int value=1;
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unsigned char *ptr=(unsigned char *)(&value);
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if(ptr[0]==1 && ptr[3]==0) return 1;
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else return 0;
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}
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#endif
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