www.pudn.com > lame3(mp3编码程序和资料).zip > 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 MACHINE_H_INCLUDED #define MACHINE_H_INCLUDED #include#include #if defined(__riscos__) && defined(FPA10) #include "ymath.h" #else #include #endif #include #include #include #include #include #include #include /* three different types of pow() functions: 1. table lookup 2. pow() 3. 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) */ #if ( defined(_MSC_VER) && !defined(INLINE)) # define INLINE _inline #elif defined(__SASC) || defined(__GNUC__) # define INLINE __inline #else # define INLINE #endif #if ( defined(_MSC_VER)) # pragma warning( disable : 4244 ) # pragma warning( disable : 4305 ) #endif #if ( defined(_MSC_VER) || defined(__BORLANDC__) ) # define WIN32_LEAN_AND_MEAN # include #else typedef float FLOAT; #endif /* MH: the x86 asm quantization routines in quantize-pvt.c are designed to work only with 8-byte doubles or 4-byte floats. if you use a different type (e.g. 10-byte extended precision long doubles, as supported by ICL), you will need to disable the ASM routines (or fix them :) */ /* NOTE: RH: 7/00: if FLOAT8=float, it breaks resampling and VBR code */ #ifdef FLOAT8_is_double typedef double FLOAT8; #else #if defined(FLOAT8_is_float) typedef float FLOAT8; #else typedef double FLOAT8; #define FLOAT8_is_double #endif #endif #if defined _WIN32 && !defined __CYGWIN__ typedef unsigned long u_long; typedef unsigned int u_int; typedef unsigned short u_short; typedef unsigned char u_char; typedef short int int16_t; #elif defined __DECALPHA__ /* do nothing */ #elif defined OS_AMIGAOS /* do nothing */ #elif defined __DJGPP__ typedef unsigned long u_long; typedef unsigned int u_int; typedef unsigned short u_short; typedef unsigned char u_char; #elif !defined __GNUC__ || defined __STRICT_ANSI__ typedef unsigned long u_long; typedef unsigned int u_int; typedef unsigned short u_short; typedef unsigned char u_char; #endif #endif