ref: c6a92afc7ac0382d90bf0fbd1d2e3e258a57aad4
dir: /sys/src/cmd/audio/mp3enc/machine.h/
/* * Machine dependent defines/includes for LAME. * * Copyright (c) 1999 A.L. Faber * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifndef LAME_MACHINE_H #define LAME_MACHINE_H #include <stdio.h> #include <memory.h> #ifdef STDC_HEADERS # include <stdlib.h> # include <string.h> #else # ifndef HAVE_STRCHR # define strchr index # define strrchr rindex # endif char *strchr (), *strrchr (); # ifndef HAVE_MEMCPY # define memcpy(d, s, n) bcopy ((s), (d), (n)) # define memmove(d, s, n) bcopy ((s), (d), (n)) # endif #endif #if defined(__riscos__) && defined(FPA10) # include "ymath.h" #else # include <math.h> #endif #include <ctype.h> #ifdef HAVE_ERRNO_H # include <errno.h> #endif #ifdef HAVE_FCNTL_H # include <fcntl.h> #endif #if defined(macintosh) # include <types.h> # include <stat.h> #else # include <sys/types.h> # include <sys/stat.h> #endif /* * 3 different types of pow() functions: * - table lookup * - pow() * - exp() on some machines this is claimed to be faster than pow() */ #define POW20(x) pow20[x] //#define POW20(x) pow(2.0,((double)(x)-210)*.25) //#define POW20(x) exp( ((double)(x)-210)*(.25*LOG2) ) #define IPOW20(x) ipow20[x] //#define IPOW20(x) exp( -((double)(x)-210)*.1875*LOG2 ) //#define IPOW20(x) pow(2.0,-((double)(x)-210)*.1875) /* in case this is used without configure */ #ifndef inline # define inline #endif /* compatibility */ #define INLINE inline #if defined(_MSC_VER) # undef inline # define inline _inline #elif defined(__SASC) || defined(__GNUC__) /* if __GNUC__ we always want to inline, not only if the user requests it */ # undef inline # define inline __inline #endif #if defined(_MSC_VER) # pragma warning( disable : 4244 ) //# pragma warning( disable : 4305 ) #endif /* * FLOAT for variables which require at least 32 bits * FLOAT8 for variables which require at least 64 bits * * On some machines, 64 bit will be faster than 32 bit. Also, some math * routines require 64 bit float, so setting FLOAT=float will result in a * lot of conversions. */ #if ( defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__) ) # define WIN32_LEAN_AND_MEAN # include <windows.h> #else # ifndef FLOAT typedef float FLOAT; # endif #endif #ifndef FLOAT8 /* NOTE: RH: 7/00: if FLOAT8=float, it breaks resampling and VBR code */ typedef double FLOAT8; #endif /* Various integer types */ #if defined _WIN32 && !defined __CYGWIN__ typedef unsigned char u_char; #elif defined __DECALPHA__ // do nothing #elif defined OS_AMIGAOS // do nothing #elif defined __DJGPP__ typedef unsigned char u_char; #elif !defined __GNUC__ || defined __STRICT_ANSI__ typedef unsigned char u_char; #else // do nothing #endif /* sample_t must be floating point, at least 32 bits */ typedef FLOAT sample_t; typedef sample_t stereo_t [2]; #endif /* end of machine.h */