From a75ff915233d444d2441a8052ccca90b849fae30 Mon Sep 17 00:00:00 2001 From: Martin Peach Date: Thu, 14 Jan 2010 20:26:41 +0000 Subject: Don't need float_cast.h anymore, using the flint union with ntohl/htonl instead. svn path=/trunk/externals/mrpeach/; revision=12999 --- net/float_cast.h | 203 ------------------------------------------------------- 1 file changed, 203 deletions(-) delete mode 100644 net/float_cast.h (limited to 'net') diff --git a/net/float_cast.h b/net/float_cast.h deleted file mode 100644 index 0ebc4bb..0000000 --- a/net/float_cast.h +++ /dev/null @@ -1,203 +0,0 @@ -/* -** Copyright (C) 2001-2003 Erik de Castro Lopo -** -** This program is free software; you can redistribute it and/or modify -** it under the terms of the GNU General Public License as published by -** the Free Software Foundation; either version 2 of the License, or -** (at your option) any later version. -** -** This program 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 General Public License for more details. -** -** You should have received a copy of the GNU General Public License -** along with this program; if not, write to the Free Software -** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. -*/ - -/* Version 1.3 */ - - -/*============================================================================ -** On Intel Pentium processors (especially PIII and probably P4), converting -** from float to int is very slow. To meet the C specs, the code produced by -** most C compilers targeting Pentium needs to change the FPU rounding mode -** before the float to int conversion is performed. -** -** Changing the FPU rounding mode causes the FPU pipeline to be flushed. It -** is this flushing of the pipeline which is so slow. -** -** Fortunately the ISO C99 specifications define the functions lrint, lrintf, -** llrint and llrintf which fix this problem as a side effect. -** -** On Unix-like systems, the configure process should have detected the -** presence of these functions. If they weren't found we have to replace them -** here with a standard C cast. -*/ - -/* -** The C99 prototypes for lrint and lrintf are as follows: -** -** long int lrintf (float x) ; -** long int lrint (double x) ; -*/ - -// #include "config.h" - -/* -** The presence of the required functions are detected during the configure -** process and the values HAVE_LRINT and HAVE_LRINTF are set accordingly in -** the config.h file. -*/ - -#define HAVE_LRINT_REPLACEMENT 0 - -#if (HAVE_LRINT && HAVE_LRINTF) - - /* - ** These defines enable functionality introduced with the 1999 ISO C - ** standard. They must be defined before the inclusion of math.h to - ** engage them. If optimisation is enabled, these functions will be - ** inlined. With optimisation switched off, you have to link in the - ** maths library using -lm. - */ - - #define _ISOC9X_SOURCE 1 - #define _ISOC99_SOURCE 1 - - #define __USE_ISOC9X 1 - #define __USE_ISOC99 1 - - #include - -#elif (defined (WIN32) || defined (_WIN32)) - - #undef HAVE_LRINT_REPLACEMENT - #define HAVE_LRINT_REPLACEMENT 1 - #include - - /* - ** Win32 doesn't seem to have these functions. - ** Therefore implement inline versions of these functions here. - */ - - __inline long int - lrint (double flt) - { int intgr; - - _asm - { fld flt - fistp intgr - } ; - - return intgr ; - } - - __inline long int - lrintf (float flt) - { int intgr; - - _asm - { fld flt - fistp intgr - } ; - - return intgr ; - } - -#elif (defined (__MWERKS__) && defined (macintosh)) - - /* This MacOS 9 solution was provided by Stephane Letz */ - - #undef HAVE_LRINT_REPLACEMENT - #define HAVE_LRINT_REPLACEMENT 1 - #include - - #undef lrint - #undef lrintf - - #define lrint double2int - #define lrintf float2int - - inline int - float2int (register float in) - { long res [2] ; - - asm - { fctiw in,in - stfd in,res - } - return res [1] ; - } /* float2int */ - - inline int - double2int (register double in) - { long res [2] ; - - asm - { fctiw in,in - stfd in,res - } - return res [1] ; - } /* double2int */ - -#elif (defined (__MACH__) && defined (__APPLE__)) - - /* For Apple MacOSX. */ - - #undef HAVE_LRINT_REPLACEMENT - #define HAVE_LRINT_REPLACEMENT 1 - #include - - #undef lrint - #undef lrintf - - #define lrint double2int - #define lrintf float2int - - inline static long int - float2int (register float in) - { int res [2] ; - - __asm__ __volatile__ - ( "fctiw %1, %1\n\t" - "stfd %1, %0" - : "=m" (res) /* Output */ - : "f" (in) /* Input */ - : "memory" - ) ; - - return res [1] ; - } /* lrintf */ - - inline static long int - double2int (register double in) - { int res [2] ; - - __asm__ __volatile__ - ( "fctiw %1, %1\n\t" - "stfd %1, %0" - : "=m" (res) /* Output */ - : "f" (in) /* Input */ - : "memory" - ) ; - - return res [1] ; - } /* lrint */ - -#else - #ifndef __sgi - #warning "Don't have the functions lrint() and lrintf()." - #warning "Replacing these functions with a standard C cast." - #endif - - #include - - #define lrint(dbl) ((int) (dbl)) - #define lrintf(flt) ((int) (flt)) - -#endif - - - -- cgit v1.2.1