compiler.h revision a48118e510fcbb57634a7869cb628123fa8c3f2e
1f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* 2f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Mesa 3-D graphics library 3f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Version: 7.5 4f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 5f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 6f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Copyright (C) 2009 VMware, Inc. All Rights Reserved. 7f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 8f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Permission is hereby granted, free of charge, to any person obtaining a 9f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * copy of this software and associated documentation files (the "Software"), 10f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * to deal in the Software without restriction, including without limitation 11f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * the rights to use, copy, modify, merge, publish, distribute, sublicense, 12f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * and/or sell copies of the Software, and to permit persons to whom the 13f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Software is furnished to do so, subject to the following conditions: 14f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 15f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * The above copyright notice and this permission notice shall be included 16f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * in all copies or substantial portions of the Software. 17f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 18f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 22f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 23f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 25f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 26f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 27f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 28f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * \file compiler.h 29f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Compiler-related stuff. 30f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 31f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 32f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 33f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef COMPILER_H 34f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define COMPILER_H 35f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 36f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 37f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <assert.h> 38f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <ctype.h> 39f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__alpha__) && defined(CCPML) 40f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <cpml.h> /* use Compaq's Fast Math Library on Alpha */ 41f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 42f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <math.h> 43f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 44f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <limits.h> 45f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <stdlib.h> 46f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <stdio.h> 47f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <string.h> 48f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__linux__) && defined(__i386__) 49f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <fpu_control.h> 50f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 51f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <float.h> 52f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <stdarg.h> 53f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 54f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 55f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef __cplusplus 56f2c023291a1f2887294d2aac504f8b82857ad092Brian Paulextern "C" { 57f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 58f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 59f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 60f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 61f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Get standard integer types 62f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 63a48118e510fcbb57634a7869cb628123fa8c3f2eVinson Lee#include <stdint.h> 64f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 65f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 66f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 67f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Sun compilers define __i386 instead of the gcc-style __i386__ 68f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 69f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef __SUNPRO_C 70f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if !defined(__i386__) && defined(__i386) 71f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __i386__ 72f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# elif !defined(__amd64__) && defined(__amd64) 73f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __amd64__ 74f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# elif !defined(__sparc__) && defined(__sparc) 75f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __sparc__ 76f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 77f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if !defined(__volatile) 78f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __volatile volatile 79f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 80f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 81f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 82f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 83f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 84f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * finite macro. 85f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 86622bdecabd73167d2f2f3aff0e223a8c64433f99José Fonseca#if defined(_MSC_VER) 87f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define finite _finite 880ad9eba333bd80cf83f728390c8cd6c573ed446dBrian Paul#elif defined(__WATCOMC__) 89f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define finite _finite 90f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 91f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 92f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 93f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 94f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Disable assorted warnings 95f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 96f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__)) && !defined(BUILD_FOR_SNAP) 97f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if !defined(__GNUC__) /* mingw environment */ 98f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4068 ) /* unknown pragma */ 99f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4710 ) /* function 'foo' not inlined */ 100f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */ 101f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4127 ) /* conditional expression is constant */ 102f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if defined(MESA_MINWARN) 103f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */ 104f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */ 105f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */ 106f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */ 107f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */ 108f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 109f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 110f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 1110ad9eba333bd80cf83f728390c8cd6c573ed446dBrian Paul#if defined(__WATCOMC__) 1120ad9eba333bd80cf83f728390c8cd6c573ed446dBrian Paul# pragma disable_message(201) /* Disable unreachable code warnings */ 1130ad9eba333bd80cf83f728390c8cd6c573ed446dBrian Paul#endif 1140ad9eba333bd80cf83f728390c8cd6c573ed446dBrian Paul 115f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 116f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 117f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 118f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Function inlining 119f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 12012c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry#ifndef INLINE 12112c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# if defined(__GNUC__) 12212c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# define INLINE __inline__ 12312c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# elif defined(__MSC__) 12412c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# define INLINE __inline 12512c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# elif defined(_MSC_VER) 12612c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# define INLINE __inline 12712c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# elif defined(__ICL) 12812c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# define INLINE __inline 12912c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# elif defined(__INTEL_COMPILER) 13012c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# define INLINE inline 13112c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100) 13212c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# define INLINE __inline 13312c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# elif defined(__SUNPRO_C) && defined(__C99FEATURES__) 13412c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# define INLINE inline 13512c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# define __inline inline 13612c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# define __inline__ inline 13712c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# elif (__STDC_VERSION__ >= 199901L) /* C99 */ 13812c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# define INLINE inline 13912c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# else 14012c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# define INLINE 14112c22cab77f35a887d9f6790e0de4a8fa4b3b575Paul Berry# endif 142f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 143f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 144f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 145f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 146f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * PUBLIC/USED macros 147f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 148f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * If we build the library with gcc's -fvisibility=hidden flag, we'll 149f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * use the PUBLIC macro to mark functions that are to be exported. 150f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 151f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * We also need to define a USED attribute, so the optimizer doesn't 152f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * inline a static function that we later use in an alias. - ajax 153f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 154a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca#ifndef PUBLIC 155a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# if defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) 156a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# define PUBLIC __attribute__((visibility("default"))) 157a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# define USED __attribute__((used)) 158a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# else 159a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# define PUBLIC 160a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# define USED 161a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# endif 162f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 163f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 164f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 165f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 166f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Some compilers don't like some of Mesa's const usage. In those places use 167f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * CONST instead of const. Pass -DNO_CONST to compilers where this matters. 168f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 169f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef NO_CONST 170f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define CONST 171f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 172f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define CONST const 173f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 174f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 175f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 176f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 177f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * __builtin_expect macros 178f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 179016fc30839f0fb67bb37d4a7353a7e38749deab5Ian Romanick#if !defined(__GNUC__) 180a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# define __builtin_expect(x, y) (x) 181f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 182f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 183a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca#ifndef likely 184a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# ifdef __GNUC__ 185a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# define likely(x) __builtin_expect(!!(x), 1) 186a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# define unlikely(x) __builtin_expect(!!(x), 0) 187a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# else 188a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# define likely(x) (x) 189a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# define unlikely(x) (x) 190a81828cb962e747644dd5b479179cd4f55932c1eJosé Fonseca# endif 191199b0894b501607bf8d599ef5efc08cd6c08c79dKristian Høgsberg#endif 192f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 193f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 194f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * The __FUNCTION__ gcc variable is generally only used for debugging. 195f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * If we're not using gcc, define __FUNCTION__ as a cpp symbol here. 196f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Don't define it if using a newer Windows compiler. 197f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 198f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef __FUNCTION__ 199f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if defined(__VMS) 200f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __FUNCTION__ "VMS$NL:" 201016fc30839f0fb67bb37d4a7353a7e38749deab5Ian Romanick# elif !defined(__GNUC__) && !defined(__xlC__) && \ 202f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul (!defined(_MSC_VER) || _MSC_VER < 1300) 203f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# if (__STDC_VERSION__ >= 199901L) /* C99 */ || \ 204f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul (defined(__SUNPRO_C) && defined(__C99FEATURES__)) 205f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __FUNCTION__ __func__ 206f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# else 207f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define __FUNCTION__ "<unknown>" 208f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 209f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# endif 210f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 211079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca#ifndef __func__ 212079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca# if (__STDC_VERSION__ >= 199901L) || \ 213079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca (defined(__SUNPRO_C) && defined(__C99FEATURES__)) 214079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca /* __func__ is part of C99 */ 215079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca# elif defined(_MSC_VER) 216079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca# if _MSC_VER >= 1300 217079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca# define __func__ __FUNCTION__ 218079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca# else 219079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca# define __func__ "<unknown>" 220079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca# endif 221079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca# endif 222079c8840609f1277320bd85c3e9568179e30bfd3José Fonseca#endif 223f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 224f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 225f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 22605208b298d218071bae75a52a16e4483ca64c94dBrian Paul * Either define MESA_BIG_ENDIAN or MESA_LITTLE_ENDIAN, and CPU_TO_LE32. 22705208b298d218071bae75a52a16e4483ca64c94dBrian Paul * Do not use these unless absolutely necessary! 228f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Try to use a runtime test instead. 229f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * For now, only used by some DRI hardware drivers for color/texel packing. 230f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 231f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN 232f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__linux__) 233f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <byteswap.h> 234f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define CPU_TO_LE32( x ) bswap_32( x ) 235093ad509fcee5cb3a890663fc80ed671dcaf4000Jeremy Huddleston#elif defined(__APPLE__) 236093ad509fcee5cb3a890663fc80ed671dcaf4000Jeremy Huddleston#include <CoreFoundation/CFByteOrder.h> 237093ad509fcee5cb3a890663fc80ed671dcaf4000Jeremy Huddleston#define CPU_TO_LE32( x ) CFSwapInt32HostToLittle( x ) 238138d639ec9d4454c646d94701365e25630d9f3daBrian Paul#elif (defined(_AIX) || defined(__blrts)) 23905208b298d218071bae75a52a16e4483ca64c94dBrian Paulstatic INLINE GLuint CPU_TO_LE32(GLuint x) 24005208b298d218071bae75a52a16e4483ca64c94dBrian Paul{ 24105208b298d218071bae75a52a16e4483ca64c94dBrian Paul return (((x & 0x000000ff) << 24) | 24205208b298d218071bae75a52a16e4483ca64c94dBrian Paul ((x & 0x0000ff00) << 8) | 24305208b298d218071bae75a52a16e4483ca64c94dBrian Paul ((x & 0x00ff0000) >> 8) | 24405208b298d218071bae75a52a16e4483ca64c94dBrian Paul ((x & 0xff000000) >> 24)); 24505208b298d218071bae75a52a16e4483ca64c94dBrian Paul} 2464e6e2462ea1fb5b7fc24bb0e707a9cf6507c47c9Tom Fogal#else /*__linux__ */ 247f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#include <sys/endian.h> 248f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define CPU_TO_LE32( x ) bswap32( x ) 249f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif /*__linux__*/ 250f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define MESA_BIG_ENDIAN 1 251f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 252f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define CPU_TO_LE32( x ) ( x ) 253f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define MESA_LITTLE_ENDIAN 1 254f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 255f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define LE32_TO_CPU( x ) CPU_TO_LE32( x ) 256f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 257f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 258f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 259f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if !defined(CAPI) && defined(WIN32) && !defined(BUILD_FOR_SNAP) 260f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define CAPI _cdecl 261f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 262f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 263f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 264f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 265f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Create a macro so that asm functions can be linked into compilers other 266f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * than GNU C 267f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 268f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef _ASMAPI 269f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(WIN32) && !defined(BUILD_FOR_SNAP)/* was: !defined( __GNUC__ ) && !defined( VMS ) && !defined( __INTEL_COMPILER )*/ 270f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _ASMAPI __cdecl 271f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 272f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _ASMAPI 273f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 274f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef PTR_DECL_IN_FRONT 275f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _ASMAPIP * _ASMAPI 276f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 277f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _ASMAPIP _ASMAPI * 278f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 279f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 280f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 281f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef USE_X86_ASM 282f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _NORMAPI _ASMAPI 283f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _NORMAPIP _ASMAPIP 284f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 285f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _NORMAPI 286f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define _NORMAPIP * 287f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 288f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 289f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 290f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* This is a macro on IRIX */ 291f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef _P 292f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#undef _P 293f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 294f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 295f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 296f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* Turn off macro checking systems used by other libraries */ 297f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef CHECK 298f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#undef CHECK 299f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 300f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 301f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 302f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 303f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * ASSERT macro 304f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 305f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if !defined(_WIN32_WCE) 306f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(BUILD_FOR_SNAP) && defined(CHECKED) 307f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define ASSERT(X) _CHECK(X) 308f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(DEBUG) 309f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define ASSERT(X) assert(X) 310f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 311f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define ASSERT(X) 312f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 313f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 314f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 3153cddc15d9dcf44a0998dd5f29ae6f6d17370584eEric Anholt#if (__GNUC__ >= 3) 3163cddc15d9dcf44a0998dd5f29ae6f6d17370584eEric Anholt#define PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a))) 3173cddc15d9dcf44a0998dd5f29ae6f6d17370584eEric Anholt#else 3183cddc15d9dcf44a0998dd5f29ae6f6d17370584eEric Anholt#define PRINTFLIKE(f, a) 3193cddc15d9dcf44a0998dd5f29ae6f6d17370584eEric Anholt#endif 320f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 321f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef NULL 322f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define NULL 0 323f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 324f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 325f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 326f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 327f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * LONGSTRING macro 328f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * gcc -pedantic warns about long string literals, LONGSTRING silences that. 329f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 330016fc30839f0fb67bb37d4a7353a7e38749deab5Ian Romanick#if !defined(__GNUC__) 331f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define LONGSTRING 332f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 333f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul# define LONGSTRING __extension__ 334f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 335f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 336f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 337f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef M_PI 338de3d9fa95630db0ef8fdbbfc465951f4c6b54d7cMatt Turner#define M_PI (3.14159265358979323846) 339f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 340f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 341f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef M_E 342f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define M_E (2.7182818284590452354) 343f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 344f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 345da61afa7388f1ce50ef612b89aba2302a052a3bbIan Romanick#ifndef M_LOG2E 346da61afa7388f1ce50ef612b89aba2302a052a3bbIan Romanick#define M_LOG2E (1.4426950408889634074) 347da61afa7388f1ce50ef612b89aba2302a052a3bbIan Romanick#endif 348da61afa7388f1ce50ef612b89aba2302a052a3bbIan Romanick 349f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef ONE_DIV_SQRT_LN2 350f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define ONE_DIV_SQRT_LN2 (1.201122408786449815) 351f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 352f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 353f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifndef FLT_MAX_EXP 354f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define FLT_MAX_EXP 128 355f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 356f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 357f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 358f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 359f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * USE_IEEE: Determine if we're using IEEE floating point 360f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 361f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__i386__) || defined(__386__) || defined(__sparc__) || \ 362f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__s390x__) || defined(__powerpc__) || \ 363f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__x86_64__) || \ 364f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(ia64) || defined(__ia64__) || \ 365f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__hppa__) || defined(hpux) || \ 366f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__mips) || defined(_MIPS_ARCH) || \ 367f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__arm__) || \ 368f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul defined(__sh__) || defined(__m32r__) || \ 369f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul (defined(__sun) && defined(_IEEE_754)) || \ 370f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul (defined(__alpha__) && (defined(__IEEE_FLOAT) || !defined(VMS))) 371f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define USE_IEEE 372f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define IEEE_ONE 0x3f800000 373f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 374f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 375f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 376f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/** 377f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * START/END_FAST_MATH macros: 378f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 379f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * START_FAST_MATH: Set x86 FPU to faster, 32-bit precision mode (and save 380f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * original mode to a temporary). 381f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * END_FAST_MATH: Restore x86 FPU to original mode. 382f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 383f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(__GNUC__) && defined(__i386__) 384f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* 385f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * Set the x86 FPU control word to guarentee only 32 bits of precision 386f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * are stored in registers. Allowing the FPU to store more introduces 387f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * differences between situations where numbers are pulled out of memory 388f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * vs. situations where the compiler is able to optimize register usage. 389f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * 390f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * In the worst case, we force the compiler to use a memory access to 391f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * truncate the float, by specifying the 'volatile' keyword. 392f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 393f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* Hardware default: All exceptions masked, extended double precision, 394f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * round to nearest (IEEE compliant): 395f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 396f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define DEFAULT_X86_FPU 0x037f 397f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* All exceptions masked, single precision, round to nearest: 398f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 399f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define FAST_X86_FPU 0x003f 400f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* The fldcw instruction will cause any pending FP exceptions to be 401f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * raised prior to entering the block, and we clear any pending 402f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * exceptions before exiting the block. Hence, asm code has free 403f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * reign over the FPU while in the fast math block. 404f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 405f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(NO_FAST_MATH) 406f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) \ 407f2c023291a1f2887294d2aac504f8b82857ad092Brian Pauldo { \ 408f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLuint mask = DEFAULT_X86_FPU; \ 409f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm__ ( "fnstcw %0" : "=m" (*&(x)) ); \ 410f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm__ ( "fldcw %0" : : "m" (mask) ); \ 411f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while (0) 412f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 413f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) \ 414f2c023291a1f2887294d2aac504f8b82857ad092Brian Pauldo { \ 415f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLuint mask = FAST_X86_FPU; \ 416f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm__ ( "fnstcw %0" : "=m" (*&(x)) ); \ 417f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm__ ( "fldcw %0" : : "m" (mask) ); \ 418f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while (0) 419f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 420f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul/* Restore original FPU mode, and clear any exceptions that may have 421f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul * occurred in the FAST_MATH block. 422f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul */ 423f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define END_FAST_MATH(x) \ 424f2c023291a1f2887294d2aac504f8b82857ad092Brian Pauldo { \ 425f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm__ ( "fnclex ; fldcw %0" : : "m" (*&(x)) ); \ 426f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while (0) 427f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 428f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(__WATCOMC__) && defined(__386__) 429f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define DEFAULT_X86_FPU 0x037f /* See GCC comments above */ 430f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define FAST_X86_FPU 0x003f /* See GCC comments above */ 431f2c023291a1f2887294d2aac504f8b82857ad092Brian Paulvoid _watcom_start_fast_math(unsigned short *x,unsigned short *mask); 432f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#pragma aux _watcom_start_fast_math = \ 433f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul "fnstcw word ptr [eax]" \ 434f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul "fldcw word ptr [ecx]" \ 435f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul parm [eax] [ecx] \ 436f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul modify exact []; 437f2c023291a1f2887294d2aac504f8b82857ad092Brian Paulvoid _watcom_end_fast_math(unsigned short *x); 438f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#pragma aux _watcom_end_fast_math = \ 439f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul "fnclex" \ 440f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul "fldcw word ptr [eax]" \ 441f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul parm [eax] \ 442f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul modify exact []; 443f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(NO_FAST_MATH) 444f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) \ 445f2c023291a1f2887294d2aac504f8b82857ad092Brian Pauldo { \ 446f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLushort mask = DEFAULT_X86_FPU; \ 447f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul _watcom_start_fast_math(&x,&mask); \ 448f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while (0) 449f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 450f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) \ 451f2c023291a1f2887294d2aac504f8b82857ad092Brian Pauldo { \ 452f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLushort mask = FAST_X86_FPU; \ 453f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul _watcom_start_fast_math(&x,&mask); \ 454f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while (0) 455f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 456f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define END_FAST_MATH(x) _watcom_end_fast_math(&x) 457f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 458f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#elif defined(_MSC_VER) && defined(_M_IX86) 459f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define DEFAULT_X86_FPU 0x037f /* See GCC comments above */ 460f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define FAST_X86_FPU 0x003f /* See GCC comments above */ 461f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#if defined(NO_FAST_MATH) 462f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) do {\ 463f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLuint mask = DEFAULT_X86_FPU;\ 464f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fnstcw word ptr [x]\ 465f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fldcw word ptr [mask]\ 466f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while(0) 467f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 468f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) do {\ 469f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul static GLuint mask = FAST_X86_FPU;\ 470f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fnstcw word ptr [x]\ 471f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fldcw word ptr [mask]\ 472f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while(0) 473f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 474f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define END_FAST_MATH(x) do {\ 475f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fnclex\ 476f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul __asm fldcw word ptr [x]\ 477f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} while(0) 478f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 479f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#else 480f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define START_FAST_MATH(x) x = 0 481f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define END_FAST_MATH(x) (void)(x) 482f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 483f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 484f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 4850491142152dcc61ebe0b46b05c94957e54c44bd9Keith Whitwell#ifndef Elements 486f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#define Elements(x) (sizeof(x)/sizeof(*(x))) 4870491142152dcc61ebe0b46b05c94957e54c44bd9Keith Whitwell#endif 488f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 489f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 490f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 491f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#ifdef __cplusplus 492f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul} 493f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif 494f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 495f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul 496f2c023291a1f2887294d2aac504f8b82857ad092Brian Paul#endif /* COMPILER_H */ 497