1848b8605Smrg/* 2848b8605Smrg * Mesa 3-D graphics library 3848b8605Smrg * 4848b8605Smrg * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 5848b8605Smrg * Copyright (C) 2009 VMware, Inc. All Rights Reserved. 6848b8605Smrg * 7848b8605Smrg * Permission is hereby granted, free of charge, to any person obtaining a 8848b8605Smrg * copy of this software and associated documentation files (the "Software"), 9848b8605Smrg * to deal in the Software without restriction, including without limitation 10848b8605Smrg * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11848b8605Smrg * and/or sell copies of the Software, and to permit persons to whom the 12848b8605Smrg * Software is furnished to do so, subject to the following conditions: 13848b8605Smrg * 14848b8605Smrg * The above copyright notice and this permission notice shall be included 15848b8605Smrg * in all copies or substantial portions of the Software. 16848b8605Smrg * 17848b8605Smrg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18848b8605Smrg * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19848b8605Smrg * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20848b8605Smrg * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 21848b8605Smrg * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22848b8605Smrg * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23848b8605Smrg * OTHER DEALINGS IN THE SOFTWARE. 24848b8605Smrg */ 25848b8605Smrg 26848b8605Smrg 27848b8605Smrg/** 28848b8605Smrg * \file compiler.h 29848b8605Smrg * Compiler-related stuff. 30848b8605Smrg */ 31848b8605Smrg 32848b8605Smrg 33848b8605Smrg#ifndef COMPILER_H 34848b8605Smrg#define COMPILER_H 35848b8605Smrg 36848b8605Smrg 37848b8605Smrg#include <assert.h> 38848b8605Smrg 39848b8605Smrg#include "util/macros.h" 40848b8605Smrg 41848b8605Smrg#include "c99_compat.h" /* inline, __func__, etc. */ 42848b8605Smrg 43848b8605Smrg 44848b8605Smrg/** 45848b8605Smrg * Either define MESA_BIG_ENDIAN or MESA_LITTLE_ENDIAN, and CPU_TO_LE32. 46848b8605Smrg * Do not use these unless absolutely necessary! 47848b8605Smrg * Try to use a runtime test instead. 48848b8605Smrg * For now, only used by some DRI hardware drivers for color/texel packing. 49848b8605Smrg */ 50848b8605Smrg#if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN 51848b8605Smrg#if defined(__linux__) 52848b8605Smrg#include <byteswap.h> 53848b8605Smrg#define CPU_TO_LE32( x ) bswap_32( x ) 54848b8605Smrg#elif defined(__APPLE__) 55848b8605Smrg#include <CoreFoundation/CFByteOrder.h> 56848b8605Smrg#define CPU_TO_LE32( x ) CFSwapInt32HostToLittle( x ) 57848b8605Smrg#elif defined(__OpenBSD__) 58848b8605Smrg#include <sys/types.h> 59848b8605Smrg#define CPU_TO_LE32( x ) htole32( x ) 60848b8605Smrg#else /*__linux__ */ 61848b8605Smrg#include <sys/endian.h> 62848b8605Smrg#define CPU_TO_LE32( x ) bswap32( x ) 63848b8605Smrg#endif /*__linux__*/ 64848b8605Smrg#define MESA_BIG_ENDIAN 1 65848b8605Smrg#else 66848b8605Smrg#define CPU_TO_LE32( x ) ( x ) 67848b8605Smrg#define MESA_LITTLE_ENDIAN 1 68848b8605Smrg#endif 69848b8605Smrg#define LE32_TO_CPU( x ) CPU_TO_LE32( x ) 70848b8605Smrg 71848b8605Smrg 72848b8605Smrg 73848b8605Smrg#define IEEE_ONE 0x3f800000 74848b8605Smrg 75848b8605Smrg 76848b8605Smrg#endif /* COMPILER_H */ 77